Chevron U.S.A. Inc.

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C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent 130
B01J 29/70 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups 114
G01V 1/30 - Analysis 86
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1.

SELECTIVE HYDROCRACKING OF NORMAL PARAFFINS

      
Application Number 18270208
Status Pending
Filing Date 2021-12-29
First Publication Date 2024-04-18
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Chen, Cong-Yan
  • Maesen, Theodorus Ludovicus Michael
  • Davis, Tracy Margaret
  • Xie, Dan

Abstract

Provided is a process for hydrocracking normal paraffins into lighter normal paraffins with minimal formation of iso-paraffins. The process comprises hydrocracking a hydrocarbon feedstock comprising normal paraffins under hydrocracking conditions. The reaction is run in the presence of a selected catalyst, e.g., an LTA-type zeolite, with a requisite topology and acid site density. The zeolite has a framework type with voids greater than 0.50 nm in diameter, which are accessible through apertures characterized by a longest diameter of less than 0.50 nm and a shortest diameter of more than 0.30 nm. The reaction conducted in the presence of such a selected zeolite produces an n-paraffin rich product.

IPC Classes  ?

  • B01J 29/068 - Noble metals
  • B01J 35/64 - Pore diameter
  • C10G 47/18 - Crystalline alumino-silicate carriers the catalyst containing platinum group metals or compounds thereof

2.

SYSTEM AND METHOD FOR SEISMIC AMPLITUDE ANALYSIS

      
Application Number 18046236
Status Pending
Filing Date 2022-10-13
First Publication Date 2024-04-18
Owner Chevron U.S.A. Inc. (USA)
Inventor Sun, Yonghe J.

Abstract

A method is described for seismic amplitude analysis that uses a set of artificial and individually separable reflectors consistent with dip fields in the subsurface volume of interest to define an AVA basis functions; the AVA basis functions are used in true-3D AVA modeling and true-3D AVA inversion. The inversion result and well logs representative of the subsurface volume of interest are used to train a model to create a rock property prediction model. The method may apply the rock property prediction model to a second seismic image to generate a rock property volume. The method is executed by a computer system.

IPC Classes  ?

  • G01V 1/28 - Processing seismic data, e.g. analysis, for interpretation, for correction
  • G01V 1/30 - Analysis

3.

MULTIVARIATE NORMALIZATION OF WELL LOGS USING PROBABILITY DISTRIBUTION MODELING

      
Application Number 17963559
Status Pending
Filing Date 2022-10-11
First Publication Date 2024-04-11
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Edwards, Mason C.
  • Kaczorowski, Kevin
  • Hossaini, Paymon

Abstract

Application logs to be normalized may be grouped into (1) mutable logs to be changed through normalization, and (2) context logs that remain constant. Reference logs may be grouped into same types of logs. Multivariate linear transformation may be performed on the application logs using the reference logs, with the parameters of the multivariate linear transformation adjusted based on comparison of the probability distribution of reference logs with the probability distribution of normalized application logs.

IPC Classes  ?

  • G06F 17/11 - Complex mathematical operations for solving equations
  • G06F 7/50 - Adding; Subtracting

4.

PROCESS FOR MAKING HEAVY GRADE BASE OIL PRODUCTS

      
Application Number 18263119
Status Pending
Filing Date 2022-01-26
First Publication Date 2024-04-11
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Trevino, Horacio
  • Zhang, Minghui
  • Lei, Guan-Dao
  • Vo, Luyen T.

Abstract

An improved process for making a heavy base oil from a base oil feedstream comprising an atmospheric resid feedstock, and, optionally, a base oil feedstock, via hydroprocessing. The process generally involves subjecting a base oil feedstream comprising the atmospheric resid to hydrocracking and dewaxing steps, and optionally to hydrofinishing, to produce base oil product(s) including a heavy grade base oil product having a viscosity of at least about 12.7 cSt at 100° C. The invention is useful to make heavy grade base oil products, as well as Group II and/or Group III/III+ base oils.

IPC Classes  ?

  • C10G 65/12 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps
  • C10G 45/44 - Hydrogenation of the aromatic hydrocarbons
  • C10G 65/14 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural parallel stages only
  • C10M 101/02 - Petroleum fractions
  • C10M 171/02 - Specified values of viscosity or viscosity index
  • C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes

5.

SYSTEM AND METHOD FOR SEISMIC IMAGING

      
Application Number 17938657
Status Pending
Filing Date 2022-10-06
First Publication Date 2024-04-11
Owner Chevron U.S.A. Inc. (USA)
Inventor Shan, Guojian

Abstract

A method is described for seismic imaging including receiving a full waveform inversion (FWI) image of a subsurface volume of interest including complex geology; transforming the FWI image to the Fourier domain to generate a Fourier domain image; performing a multi-dimensional low-cut filter of the Fourier domain image to generate a low-cut filter image; phase rotating by 90 degrees the low-cut filter image to generate a phase-rotated image; performing an inverse Fourier transform on the phase-rotated image to generate a transformed image; and displaying the transformed image on a graphical display. The method is executed by a computer system.

IPC Classes  ?

6.

SYSTEM AND METHOD FOR DETECTING PRESSURE CHANGES IN PIPE SECTIONS

      
Application Number 18045038
Status Pending
Filing Date 2022-10-07
First Publication Date 2024-04-11
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Tanju, Baha Tulu
  • Kramer, Matthew R.
  • Critsinelis, Antonio C.F.
  • Mebarkia, Sid A.
  • Duplat, Simona
  • Patterson, Joseph E.
  • Mychaskiw, Jeffrey E.

Abstract

The present embodiments disclose a system and method for generating a predictive model to detect leak in undersea pipes. The system includes an administrator processor and one or more pipe sections. The method proceeds with observing changes in pressure, generating a predictive model configured to determine if a leak has occurred, and closing one or more pipes responsible for the leak.

IPC Classes  ?

7.

Wellhead Bracing System

      
Application Number 18473235
Status Pending
Filing Date 2023-09-23
First Publication Date 2024-04-04
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Lu, Wangming
  • Nguyen, Khiem
  • Painter, Jay Patrick
  • Carroll, Caleb Kimbrell
  • Averill, William Stephen
  • Williams, Deryck Edward Matthew
  • Barrow, David Crenshaw
  • Fitzsimmons, Michael Ryan

Abstract

A wellhead bracing system for a subsea well includes a base plate assembly and a wellhead brace assembly. The base plate assembly comprises a top surface, a bottom surface, a base plate aperture, and a plurality of anchor holes. The wellhead brace assembly comprises a vertical plate assembly having a cylindrical shape, a horizontal plate assembly to which the vertical plate assembly is attached, and a vertical support assembly attached to an outer surface of the vertical plate assembly and attached to the top surface of the horizontal plate assembly. Horizontal plate holes of the horizontal plate assembly are configured to attach to studs on the top surface of the base plate to secure the wellhead brace assembly to the base plate assembly. The wellhead bracing system slides onto a wellhead of the subsea well and braces an exterior of the wellhead.

IPC Classes  ?

  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 33/035 - Well heads; Setting-up thereof specially adapted for underwater installations

8.

SYSTEM AND METHOD FOR SALT REMOVAL FROM SOLID MEDIA

      
Application Number 18481180
Status Pending
Filing Date 2023-10-04
First Publication Date 2024-04-04
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Han, Joonkyoung
  • Trenery, Jr., John B.

Abstract

A process for reducing the salinity of salt containing material (SCM) includes introducing the SCM into a wash system configured to sequentially wash the SCM with water having decreasing salinity levels across a plurality of mixing tanks arranged in series; introducing feed water into the wash system in a countercurrent flow relative to the SCM; discharging washed SCM from the wash system, the washed SCM having a lower salinity compared to the SCM that is initially introduced into the wash system; and discharging brine from the wash system, the brine being generated in a mixing tank that initially receives the SCM into the wash system.

IPC Classes  ?

  • B08B 3/04 - Cleaning involving contact with liquid
  • B08B 13/00 - Accessories or details of general applicability for machines or apparatus for cleaning
  • E21B 21/06 - Arrangements for treating drilling fluids outside the borehole

9.

METHOD FOR MAKING BASE OIL WITH ENHANCED COLOR STABILITY

      
Application Number 18262171
Status Pending
Filing Date 2022-01-18
First Publication Date 2024-04-04
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Lei, Guan-Dao
  • Rostami, Malek M.
  • Russell, Beth A.

Abstract

A method for making a base oil having enhanced color stability and the base oil prepared therefrom are disclosed. The method comprises adding a phenyl benzotriazole compound to a base oil composition to form a color-stabilized base oil composition. In some cases, the phenyl benzotriazole compound has the structural formula (I): A method for making a base oil having enhanced color stability and the base oil prepared therefrom are disclosed. The method comprises adding a phenyl benzotriazole compound to a base oil composition to form a color-stabilized base oil composition. In some cases, the phenyl benzotriazole compound has the structural formula (I): A method for making a base oil having enhanced color stability and the base oil prepared therefrom are disclosed. The method comprises adding a phenyl benzotriazole compound to a base oil composition to form a color-stabilized base oil composition. In some cases, the phenyl benzotriazole compound has the structural formula (I): wherein, R and R′ are independently one or more substituents selected from hydrogen, substituted and unsubstituted alkyl, substituted and unsubstituted cycloalkyl, substituted and unsubstituted alkoxy, substituted and unsubstituted carboxyl, or a combination thereof, with the proviso that at least one of R and R′ is a non-hydrogen substituent.

IPC Classes  ?

  • C10M 133/44 - Five-membered ring containing nitrogen and carbon only
  • C10M 169/04 - Mixtures of base-materials and additives

10.

FLUID LEAK DETECTION, LOCALIZATION, AND QUANTIFICATION WITH CONFIDENCE

      
Application Number 18479492
Status Pending
Filing Date 2023-10-02
First Publication Date 2024-04-04
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Salmatanis, Nikolaos Ioannis
  • Jenkins, Tyrone
  • Bowden, Jr., Larry A.

Abstract

Infrared images of a fluid facility are captured to detect, localize, and quantify fluid leaks with confidence at the fluid facility. Changes in pixel values for a fluid leak, which reflect changes in temperature due to the fluid leak, are used to quantify the fluid leak. The location of the fluid leak is identified using the setup of the infrared camera and the fluid leak captured within the infrared images. A dispersion of the fluid leak is calculated and presented to show the path of the fluid leak.

IPC Classes  ?

  • G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
  • G06T 7/00 - Image analysis
  • G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
  • G06V 10/26 - Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion

11.

INTEGRATED FLUID LEAK DETECTION USING MULTIPLE SENSORS

      
Application Number 18479566
Status Pending
Filing Date 2023-10-02
First Publication Date 2024-04-04
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Salmatanis, Nikolaos Ioannis
  • Jenkins, Tyrone
  • Bowden, Jr., Larry A.

Abstract

Fluid leak observations made by different types of sensors are combined to detect fluid leaks at a fluid facility. Separate fluid leak observations made by different types of sensors are reconciled using a Bayesian model. The Bayesian model outputs likelihoods of different fluid leak probabilities, and the likelihoods of different fluid leak probabilities are used to facilitate operations at the fluid facility.

IPC Classes  ?

  • G01N 21/88 - Investigating the presence of flaws, defects or contamination

12.

SYSTEM AND METHOD FOR GENERATING PREDICTIVE MODEL ASSOCIATED WITH ROTARY DEVICES

      
Application Number 17936847
Status Pending
Filing Date 2022-09-29
First Publication Date 2024-04-04
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Ramchune, Devanand
  • Levy, Jr., Michael L.
  • Waguespack, Jeanne Hoffman
  • Babbe, Mark Joseph
  • Majeran, Malina Elaine

Abstract

The disclosed embodiments include a system and method for generating a predictive model for determining whether a reamer has experienced significant wear. The system includes an information acquisition processor and a server. The information acquisition processor retrieves wellbore information, transmits the information to the server. The server generates and updates the predictive model that can predict whether the reamer has experienced wear

IPC Classes  ?

  • G06F 30/20 - Design optimisation, verification or simulation
  • E21B 45/00 - Measuring the drilling time or rate of penetration
  • G08B 7/06 - Signalling systems according to more than one of groups ; Personal calling systems according to more than one of groups using electric transmission
  • G08B 21/18 - Status alarms

13.

FUEL ADDITIVES FOR REDUCING LOW SPEED PRE-IGNITION EVENTS

      
Application Number 18264083
Status Pending
Filing Date 2022-03-24
First Publication Date 2024-03-28
Owner
  • CHEVRON ORONITE COMPANY LLC (USA)
  • CHEVRON U.S.A. INC. (USA)
Inventor
  • Shih, Edward (jiun Le)
  • Kuo, Chung-Hao
  • Loeper, Charles Paul
  • Smoot, Jeanelle

Abstract

Method for preventing or reducing low speed pre-ignition events in a spark-ignited internal combustion engine is provided. The method includes supplying to the engine the lubricant composition comprising a primary additive having a structure given by Method for preventing or reducing low speed pre-ignition events in a spark-ignited internal combustion engine is provided. The method includes supplying to the engine the lubricant composition comprising a primary additive having a structure given by or a salt thereof. R1 and R2 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, or hydroxyl group. R3 and R4 are independently H, C1-C20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, amino, or hydroxyl group or wherein R3 and R4 are part of a cyclic group. R5 is C1-C100 hydrocarbyl group, carboxyl group, ether, or hydroxyl group. Lastly, p is 0 to 2, n is 1 to 5, m is 0 to 2, and p+n+m is less than 6.

IPC Classes  ?

  • C10M 133/08 - Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups
  • C10L 1/22 - Organic compounds containing nitrogen
  • C10M 141/06 - Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being an organic nitrogen-containing compound

14.

HYDROCRACKING OPERATION WITH REDUCED ACCUMULATION OF HEAVY POLYNUCLEAR AROMATICS

      
Application Number 18270202
Status Pending
Filing Date 2021-12-29
First Publication Date 2024-03-28
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Jiao, Ling
  • Zhan, Bi-Zheng
  • Bushee, Don
  • Maesen, Theodorus Ludovicus Michael
  • Timken, Hye-Kyung
  • Dutta, Richard
  • Parekh, Jay

Abstract

Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

IPC Classes  ?

  • C10G 65/12 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps
  • C10G 7/00 - Distillation of hydrocarbon oils
  • C10G 47/14 - Inorganic carriers the catalyst containing platinum group metals or compounds thereof

15.

CATALYST AND PROCESS USING SSZ-91 AND ZSM-12

      
Application Number 18038240
Status Pending
Filing Date 2021-11-22
First Publication Date 2024-03-28
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Ojo, Adeola
  • Lei, Guan-Dao

Abstract

An improved hydroisomerization catalyst and process for making a base oil product using a catalyst comprising SSZ-91 molecular sieve and ZSM-12 molecular sieve. The catalyst and process generally involves the use of a catalyst comprising an SSZ-91 molecular sieve combined with a ZSM-12 molecular sieve to produce dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst and process provide improved base oil cold properties, such as pour point and cloud point, along with other beneficial base oil properties.

IPC Classes  ?

  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • B01J 29/74 - Noble metals
  • B01J 29/80 - Mixtures of different zeolites
  • B01J 37/02 - Impregnation, coating or precipitation
  • B01J 37/04 - Mixing
  • B01J 37/08 - Heat treatment
  • C10M 109/02 - Reaction products
  • C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes

16.

HYDROISOMERIZATION CATALYST WITH IMPROVED THERMAL STABILITY

      
Application Number 18269915
Status Pending
Filing Date 2021-12-20
First Publication Date 2024-03-28
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Ojo, Adeola
  • Lei, Guan-Dao

Abstract

A method for making a hydroisomerization catalyst having improved thermal stability and metal dispersion characteristics, the catalyst prepared therefrom, and a process for making a base oil product using the catalyst are disclosed. The catalyst is prepared from a composition comprising an SSZ-91 molecular sieve and a rare earth modified alumina, with the composition being modified to contain a Group 8-10 metal, typically through impregnation of a Group 8-10 metal composition. The catalyst may be used to produce dewaxed base oil products by contacting the catalyst under hydroisomerization conditions with a hydrocarbon feedstock.

IPC Classes  ?

  • B01J 37/04 - Mixing
  • B01J 21/04 - Alumina
  • B01J 23/10 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of rare earths
  • B01J 23/63 - Platinum group metals with rare earths or actinides
  • B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
  • B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves

17.

ROOT CAUSE ANALYSIS TOOL FOR ALARMS

      
Application Number 18271986
Status Pending
Filing Date 2022-01-13
First Publication Date 2024-03-28
Owner
  • CALIFORNIA INSTITUTE OF TECHNOLOGY (USA)
  • CHEVRON U.S.A. Inc. (USA)
Inventor
  • Timmaraju, Virisha
  • Junkins, Eric
  • Constantinou, Valentinos
  • Mishra, Asitang
  • Kandasamy, Sakthivel

Abstract

Relationships between alarms are modeled using a graph to identify root cause of a sequence of alarms (an alarm flood). The nodes of the graph represent different alarms, and the edges between the nodes are scored using pairwise analysis of when the alarms occurred. The graph is divided into multiple subgraphs representing alarm clusters. Root cause analysis of the sequence of alarms is performed by generating and simplifying directed graphs for events within the alarm clusters.

IPC Classes  ?

18.

BORON SSZ-41, ITS SYNTHESIS AND USE

      
Application Number 18458226
Status Pending
Filing Date 2023-08-30
First Publication Date 2024-03-21
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Zones, Stacey I.
  • Chen, Cong-Yan

Abstract

A novel synthetic crystalline molecular sieve material, designated boron SSZ-41 is provided. The boron SSZ-41 is a boronzincosilicate molecular sieve having the framework structure of SSZ-41. It can be synthesized using 1,1′-(1,4-butanediyl)bis[4-aza-1-azoniabicyclo[2.2.2]octane] dications as a structure directing agent. The boronzincosilicate SSZ-41 may be used in organic compound conversion reactions and/or sorptive processes.

IPC Classes  ?

  • B01J 29/70 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups
  • B01J 29/74 - Noble metals
  • B01J 37/00 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
  • B01J 37/03 - Precipitation; Co-precipitation
  • B01J 37/04 - Mixing
  • B01J 37/08 - Heat treatment
  • C01B 39/04 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof using at least one organic template directing agent, e.g. an ionic quaternary ammonium compound or an aminated compound
  • C01B 39/12 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements the replacing atoms being boron atoms
  • C10G 35/095 - Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves

19.

TUBING HANGER RETENTION SYSTEMS FOR WELLHEAD ASSEMBLIES

      
Application Number 18459710
Status Pending
Filing Date 2023-09-01
First Publication Date 2024-03-21
Owner Chevron U.S.A. Inc. (USA)
Inventor Painter, Jay Patrick

Abstract

A tubing hanger retention system for a wellhead assembly can include a retention ring that is configured to fit over a top portion of a tubing hanger of the wellhead assembly, where the retention ring comprises a plurality of retention ring channels. The tubing hanger retention system can also include multiple retention pin receiving features configured to be disposed, at least in part, within multiple tubing spool channels of a tubing spool. The tubing hanger retention system can further include multiple retention pins configured to be received by the retention pin receiving features, where each retention pin includes an engagement feature configured to be received by a retention pin receiving feature to place the retention pin in a captured state, where the engagement feature of each retention pin is further configured to enter into an engaged state with a retention ring channel when the retention pin is moved inward.

IPC Classes  ?

  • E21B 33/047 - Casing heads; Suspending casings or tubings in well heads for plural tubing strings

20.

INTEGRATED CURRENT LOAD AS WELLHEAD FATIGUE DAMAGE RATE INDICATOR

      
Application Number 17941733
Status Pending
Filing Date 2022-09-09
First Publication Date 2024-03-14
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Guan, Xiaorui
  • Lu, Wangming

Abstract

Current profile of water (e.g., ocean) around a riser connected to a wellhead may be measured and used to determine integrated current load on the riser at any given moment in time. The integrated current load may be used to estimate the wellhead fatigue damage rate at that moment in time. The estimated wellhead fatigue damage rate may be used to make operational decisions for the well.

IPC Classes  ?

  • E21B 47/007 - Measuring stresses in a pipe string or casing
  • E21B 17/01 - Risers
  • E21B 33/035 - Well heads; Setting-up thereof specially adapted for underwater installations
  • E21B 47/001 - Survey of boreholes or wells for underwater installations

21.

HYDROCRACKING CATALYST AND PROCESS USING MOLECULAR SIEVE SSZ-91

      
Application Number 18261948
Status Pending
Filing Date 2022-01-17
First Publication Date 2024-03-14
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Duma, Viorel
  • Maesen, Theodorus Ludovicus Michael
  • Yoon, Hyungjae Alexander

Abstract

Described herein is a hydrocracking catalyst and process that may be used to make middle distillates and unconverted oil having beneficial yield and product characteristics. The process generally comprises contacting a hydrocarbon feed with the hydrocracking catalyst under hydrocracking conditions to produce a product comprising middle distillates and unconverted oil products. The hydrocracking catalyst comprises an SSZ-91 molecular sieve and a modifying metal selected from one or more Group 6 metals, and, optionally, one or more Group 8 to 10 metals, or a modifying metal selected from Group 8 to 10 metals and combinations thereof, and, optionally, one or more Group 6 metals. The hydrocracking catalyst may comprise a matrix material and/or an additional zeolite.

IPC Classes  ?

  • C10G 47/20 - Crystalline alumino-silicate carriers the catalyst containing other metals or compounds thereof
  • B01J 29/76 - Iron group metals or copper
  • B01J 29/78 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium

22.

PROCESS FOR MAKING BRIGHT STOCK BASE OIL PRODUCTS

      
Application Number 18263123
Status Pending
Filing Date 2022-01-26
First Publication Date 2024-03-14
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Trevino, Horacio
  • Zhang, Minghui
  • Lei, Guan-Dao
  • Farrell, Thomas Ralph

Abstract

An improved process for making a bright stock base oil from a base oil feedstream comprising an atmospheric resid feedstock, and, optionally, a base oil feedstock, via hydroprocessing. The process generally involves subjecting a base oil feedstream comprising the atmospheric resid to hydrocracking and dewaxing steps, and optionally to hydrofinishing, to produce base oil product(s) including a bright stock grade base oil product having a viscosity of at least about 22 cSt at 100° C. The invention is useful to make heavy grade base oil products such as bright stock, as well as Group II and/or Group III/III+ base oils.

IPC Classes  ?

  • C10G 45/48 - Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
  • C10G 45/60 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
  • C10G 65/12 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps

23.

SYSTEMS AND METHODS FOR GENERATING A STRESS SHADOW EFFECT IN A SUBSURFACE VOLUME OF INTEREST

      
Application Number 18462293
Status Pending
Filing Date 2023-09-06
First Publication Date 2024-03-14
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Prochnow, Shane James
  • Hossaini, Paymon Pourmoradi
  • Mohamed, Mohamed Ibrahim Hafez
  • Grechishnikova, Alena
  • Saldana, Sandra Christine

Abstract

Systems and methods are disclosed for generating a stress shadow effect as a function of position in a subsurface volume of interest. A computer-implemented method may obtain completion data in the subsurface volume of interest; generate relationships between the hydraulic fracturing stage data and the corresponding wellbore distances; and generate spatially discrete stress shadow effect data by spatially attributing the stress shadow effect slope coefficient to locations of the individual wells.

IPC Classes  ?

  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • E21B 47/022 - Determining slope or direction of the borehole, e.g. using geomagnetism

24.

Circular economy for plastic waste to polyethylene via refinery FCC feed pretreater and FCC units

      
Application Number 18051003
Grant Number 11939527
Status In Force
Filing Date 2022-10-30
First Publication Date 2024-03-07
Grant Date 2024-03-26
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Timken, Hye-Kyung
  • Mccord, Cameron

Abstract

3) is recovered from a propane/propylene splitter and passed to the steam cracker.

IPC Classes  ?

  • C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
  • C10G 9/36 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
  • C10G 51/02 - Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only plural serial stages only
  • C10G 51/04 - Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only plural serial stages only including only thermal and catalytic cracking steps
  • C10G 57/02 - Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one cracking process or refining process and at least one other conversion process with polymerisation
  • C10G 73/02 - Recovery of petroleum waxes from hydrocarbon oils; De-waxing of hydrocarbon oils

25.

Improved Process to Make Finished Base Oils and White Oils from Dewaxed Bulk Base Oils

      
Application Number 18260223
Status Pending
Filing Date 2021-12-24
First Publication Date 2024-03-07
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Peinado, Kenneth John
  • Parekh, Jay
  • Jia, Jifei
  • Zhang, Yihua
  • Lei, Guan-Dao
  • Zhang, Guang

Abstract

Provided in one embodiment is an improved and more flexible process for preparing a finished base oil or a white oil product comprising passing a dewaxed base oil product to a distillation column and separating the dewaxed base oil product into fuel and base oil product streams. The base oil product streams are tested to determine if they meet desired specifications. Base oil product streams that meet the desired minimum base oil specifications are passed to a hydrofinishing reactor to prepare a white oil product, or passed to direct sale.

IPC Classes  ?

  • C10G 67/02 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only
  • C10M 101/02 - Petroleum fractions
  • C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes

26.

METHOD FOR PRODUCING HIGH QUALITY BASE OILS USING TWO STAGE HYDROFINISHING

      
Application Number 18262178
Status Pending
Filing Date 2022-01-18
First Publication Date 2024-03-07
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Bhattacharya, Subhasis
  • Lei, Guan-Dao

Abstract

Described are processes to produce base oils with one more improved properties, e.g., lower aromatics, economically and/or efficiently. In some embodiments, the processes relate to two stage (or more) hydrofinishing which advantageously provides base oils with lower aromatics than comparable one stage processes.

IPC Classes  ?

  • C10G 67/04 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen
  • B01J 29/74 - Noble metals
  • C10G 45/62 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • C10G 65/04 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only refining steps

27.

METHOD FOR PRODUCING HIGH QUALITY BASE OILS USING MULTIPLE STAGE PROCESSING

      
Application Number 18262317
Status Pending
Filing Date 2022-01-18
First Publication Date 2024-03-07
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Lei, Guan-Dao

Abstract

Described are processes to produce base oils with one more improved properties, e.g., lower aromatics, economically and/or efficiently. In some embodiments the processes comprise a step that reduces the amount of residual refractory sulfur compounds prior to or simultaneous with a hydrofinishing step which advantageously provides base oils with lower aromatics than comparable processes.

IPC Classes  ?

  • C10G 67/04 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen
  • B01J 29/74 - Noble metals
  • C10G 45/62 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • C10G 65/04 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only refining steps

28.

PROCESS FOR HYDROISOMERISING A HYDROCARBON FEED

      
Application Number 18269239
Status Pending
Filing Date 2021-12-20
First Publication Date 2024-03-07
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Lei, Guan-Dao
  • Ojo, Adeola Florence

Abstract

Described herein is a process for hydroisomerising a hydrocarbon feed. The process may comprise: combining a hydrocarbon feed and a hydroisomerisation additive to provide a combined feed; and contacting the combined feed with a hydroisomerisation catalyst comprising zeolite SSZ-91, where the hydroisomerisation additive is a substituted or unsubstituted nitrogen heterocycle.

IPC Classes  ?

  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • B01J 29/76 - Iron group metals or copper

29.

COMPOSITIONS AND METHODS FOR CARBON DIOXIDE SOLIDIFICATION

      
Application Number 18234318
Status Pending
Filing Date 2023-08-15
First Publication Date 2024-02-29
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Chandrasekhar, Sriram
  • Malik, Taimur
  • Aminzadeh Goharrizi, Behdad
  • Palayangoda, Sujeewa S.

Abstract

Described are compositions and methods of using them. The methods can be used to sequester carbon dioxide within a subterranean formation. The methods can include contacting carbon dioxide present in the subterranean formation with a complexing agent, resulting in precipitation of a carbonate or bicarbonate salt of the complexing agent within the subterranean formation.

IPC Classes  ?

  • C09K 8/493 - Additives for reducing or preventing gas migration
  • C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells

30.

TREATING FLUID COMPRISING HYDROCARBONS, WATER, AND POLYMER

      
Application Number 18496600
Status Pending
Filing Date 2023-10-27
First Publication Date 2024-02-29
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Subrahmanyan, Sumitra
  • Pinnawala, Gayani W.
  • Thach, Sophany
  • Winslow, Gregory A.
  • Alexis, Dennis A.
  • Linnemeyer, Harold C.
  • Theriot, Timothy P.
  • Jackowski, Les Leszek
  • Cibotti, Francesca

Abstract

Embodiments of treating fluid comprising hydrocarbons, water, and polymer being produced from a hydrocarbon-bearing formation are provided. One embodiment comprises adding a concentration of a viscosity reducer to the fluid to degrade the polymer present in the fluid and adding a concentration of a neutralizer to the fluid to neutralize the viscosity reducer in the fluid. The addition of the concentration of the viscosity reducer is in a sufficient quantity to allow for complete chemical degradation of the polymer prior to the addition of the concentration of the neutralizer in the fluid such that excess viscosity reducer is present in the fluid. The addition of the concentration of the neutralizer is sufficiently upstream of any surface fluid processing equipment to allow for complete neutralization of the excess viscosity reducer such that excess neutralizer is present in the fluid prior to the fluid reaching any of the surface fluid processing equipment.

IPC Classes  ?

  • C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
  • C09K 8/03 - Specific additives for general use in well-drilling compositions
  • E21B 21/06 - Arrangements for treating drilling fluids outside the borehole
  • E21B 43/38 - Arrangements for separating materials produced by the well in the well

31.

Subsea Wellhead System Fatigue Damage Monitoring

      
Application Number 17822869
Status Pending
Filing Date 2022-08-29
First Publication Date 2024-02-29
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Lu, Wangming
  • Penaloza, William
  • Koons, Brian
  • Chase, Thomas

Abstract

A computing system, method, and computer-readable medium includes a fatigue tracking service that assists with monitoring fatigue damage in a subsea wellhead system. The fatigue tracking service uses historical environmental data to determine a fatigue damage rate. The fatigue tracking service determines a fatigue allowance based upon the fatigue damage rate, a number of days assigned to a well operation, and a total allowable fatigue damage. The fatigue tracking service compares the fatigue allowance to measurements providing an accumulated fatigue damage to facilitate the monitoring of fatigue damage in the subsea wellhead system.

IPC Classes  ?

  • E21B 47/007 - Measuring stresses in a pipe string or casing

32.

Fluid bed lipid conversion

      
Application Number 18207356
Grant Number 11912947
Status In Force
Filing Date 2023-06-08
First Publication Date 2024-02-27
Grant Date 2024-02-27
Owner Chevron U.S.A. Inc. (USA)
Inventor Hommeltoft, Sven Ivar

Abstract

A process involves (a) processing a lipid feedstock over a fluidized particulate catalyst in a gas-based stream in a fluid bed reactor to obtain a processed stream and spent catalyst comprising coke deposits, (b) continuously introducing the spent catalyst comprising the coke deposits to a catalyst regeneration unit, (c) continuously operating the catalyst regeneration unit to burn off the coke deposits from the spent catalyst to obtain a regenerated particulate catalyst, and (d) continuously introducing the regenerated particulate catalyst from the catalyst regeneration unit to the fluid bed reactor.

IPC Classes  ?

  • C10L 1/02 - Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
  • B01J 38/30 - Treating with free oxygen-containing gas in gaseous suspension, e.g. fluidised bed
  • B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
  • B01J 8/26 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
  • B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid

33.

High Nanopore Volume Catalyst And Process Using SSZ-91

      
Application Number 18036572
Status Pending
Filing Date 2021-11-11
First Publication Date 2024-02-22
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Ojo, Adeola Florence
  • Lei, Guan Dao

Abstract

An improved hydroisomerization catalyst and process for making a base oil product wherein the catalyst comprises a base extrudate that includes SSZ-91 molecular sieve and a high nanopore volume alumina. The catalyst and process generally involves the use of a SSZ-91/high nanopore volume alumina based catalyst to produce dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst base extrudate advantageously comprises an alumina having a pore volume in the 11-20 nm pore diameter range of 0.05 to 1.0 cc/g, with the base extrudate formed from SSZ-91 and the alumina having a total pore volume in the 2-50 nm pore diameter range of 0.12 to 1.80 cc/g. The catalyst and process provide improved base oil yield with reduced gas and fuels production.

IPC Classes  ?

  • B01J 29/74 - Noble metals
  • B01J 21/04 - Alumina
  • B01J 29/70 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups
  • B01J 29/80 - Mixtures of different zeolites
  • B01J 35/10 - Solids characterised by their surface properties or porosity
  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • C10M 109/02 - Reaction products

34.

SUBSURFACE CHARACTERIZATION BASED ON MULTIPLE CORRELATION SCENARIOS

      
Application Number 18035171
Status Pending
Filing Date 2021-11-10
First Publication Date 2024-02-22
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Holmes, Robert Chadwick
  • Sullivan, Morgan David
  • Harris, Ashley D.
  • Laugier, Fabien J.

Abstract

A group of wells may be located within a region of interest. Multiple scenarios of boundary locations within a group of wells may be obtained. A top-and-base boundary pair, defining a package of interest, may be identified within the individual scenarios of boundary locations. A subsurface property of the package of interest within the individual scenarios of boundary locations may be determined, and the subsurface property of the package of interest within the individual scenarios of boundary locations may be used to determine a subsurface characteristic of the region of interest.

IPC Classes  ?

  • G01V 99/00 - Subject matter not provided for in other groups of this subclass

35.

SYSTEMS AND METHODS FOR ANALYTIC MAPPING OF THE METAGEOMIC AND HYDROCARBON FOOTPRINTS OF GEOLOGIC SUBZONES

      
Application Number 18269429
Status Pending
Filing Date 2021-08-31
First Publication Date 2024-02-22
Owner
  • Chevron U.S.A. Inc. (USA)
  • University of Houston System (USA)
Inventor
  • Gunaratne, Preethi
  • Gunaratne, Gemunu
  • Phanse, Gautam
  • Kohl, Courtney A.
  • Salazar, Ulises
  • Castillo, Micah
  • Bhagavatula, Parthasarathy
  • Studnicky, Caroline
  • Johnson, Brandi Elaine Denton
  • Tokar, Timothy John

Abstract

The present disclosure relates to analytic mapping of metagenomic and hydrocarbon footprints of geologic subzones. A plurality of DNA profiles are generated based on a set of distinct geological specimens from each well of a plurality of wells. BioGeo markers, BioGeo signatures and a BioGeo matrix are generated based on the plurality of DNA profiles.

IPC Classes  ?

  • E21B 43/30 - Specific pattern of wells, e.g. optimizing the spacing of wells
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures

36.

PROCESS HAVING IMPROVED BASE OIL YIELD

      
Application Number 18269751
Status Pending
Filing Date 2021-12-24
First Publication Date 2024-02-22
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Peinado, Kenneth John
  • Jia, Jifei
  • Lei, Guan-Dao
  • Parekh, Jay
  • Zhang, Yihua

Abstract

Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.

IPC Classes  ?

  • C10G 67/04 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen
  • C10G 45/62 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof

37.

SELECTIVE HYDROCRACKING OF NORMAL PARAFFIN

      
Application Number 18269922
Status Pending
Filing Date 2021-12-29
First Publication Date 2024-02-22
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Schmidt, Joel
  • Chen, Cong-Yan
  • Maesen, Theodorus Ludovicus Michael
  • Xie, Dan

Abstract

Provided is a process for hydrocracking normal paraffins into lighter normal paraffins with minimal formation of iso-paraffins. The process comprises hydrocracking a hydrocarbon feedstock comprising normal paraffins under hydrocracking conditions. The reaction is run in the presence of a specific type of zeolite based catalyst which has been found to provide high conversion with minimal iso-paraffin products. In one embodiment, the zeolite is of the framework PWO. The reaction conducted in the presence of the zeolite based catalyst produces an n-paraffin rich product that needs no separation step before being fed to a steam cracker to produce lower olefins.

IPC Classes  ?

  • C10G 65/12 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps

38.

SYSTEMS AND METHODS FOR THERMAL MANAGEMENT OF SUBSEA CONDUITS USING A JUMPER HAVING ADJUSTABLE INSULATING ELEMENTS

      
Application Number 18301197
Status Pending
Filing Date 2023-04-14
First Publication Date 2024-02-15
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Critsinelis, Antonio C. F.
  • Mebarkia, Sid
  • Wise, Michelle A.
  • Manimala, Yesudas J.
  • Hughes, William C.
  • Cochran, Steven W.
  • Uribe, Edgar
  • Garcia, Jason D.

Abstract

Systems and methods for thermal management of subsea conduits such as jumpers provide the ability to alternate between cooling and heat retention of production fluids within the conduit as needed depending on the phase of operation. Adjustable insulation elements are provided on the conduits so that convective heat transfer between surrounding seawater and the conduit can be allowed or reduced. A control system can activate an alarm indicating the need to adjust the insulation depending on the temperature and/or flow rate of fluids in the conduit. Conventional conduits can be retrofitted by adding adjustable insulation elements to enable thermal management.

IPC Classes  ?

  • E21B 36/00 - Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
  • F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
  • E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations

39.

USE OF A BORATE-ACID BUFFER IN OIL AND GAS OPERATIONS

      
Application Number 18488079
Status Pending
Filing Date 2023-10-17
First Publication Date 2024-02-15
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Nizamidin, Nabijan
  • Pinnawala, Gayani W.
  • Tang, Guo-Qing
  • Dwarakanath, Varadarajan
  • Winslow, Gregory A.
  • Isbell, Jordan Taylor
  • Malik, Taimur

Abstract

Provided herein are compositions comprising borate-acid buffers, as well as methods of using these compositions in oil and gas operations, including enhanced oil recovery (EOR) operations, fracturing operations, stimulation operations, etc.

IPC Classes  ?

  • C09K 8/584 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
  • C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
  • C09K 8/60 - Compositions for stimulating production by acting on the underground formation
  • C09K 8/66 - Compositions based on water or polar solvents
  • C09K 8/68 - Compositions based on water or polar solvents containing organic compounds
  • C09K 8/80 - Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
  • E21B 43/20 - Displacing by water
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures
  • E21B 47/11 - Locating fluid leaks, intrusions or movements using radioactivity

40.

SYSTEMS AND METHODS FOR THERMAL MANAGEMENT OF SUBSEA CONDUITS USING AN INTERCONNECTING CONDUIT AND VALVING ARRANGEMENT

      
Application Number 18489575
Status Pending
Filing Date 2023-10-18
First Publication Date 2024-02-08
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Critsinelis, Antonio C.F
  • Mebarkia, Sid
  • Wise, Michelle A.
  • Manimala, Yesudas J.
  • Hughes, William C.
  • Cochran, Steven W.
  • Uribe, Edgar
  • Garcia, Jason D.

Abstract

Disclosed are systems and methods for thermal management of subsea interconnecting conduit such as jumpers that provide cooling and heat retention of production fluids within the jumpers. In a jumper circuit, parallel sections of jumper are provided having differing amounts of heat transfer between surrounding seawater and production fluids flowing within. Valving is provided to control fluid flow between the parallel sections of jumper, thus controlling the amount of heat transfer between the surrounding seawater and the jumper circuit. A control system can be used to generate an alarm based on fluid temperature and/or fluid flow rate within the jumper circuit indicating the need to adjust the valving to manage the temperature of fluids within the jumper circuit. Changes may be needed particularly depending on the phase of production, e.g., early life, normal operation, shut down and late life operation.

IPC Classes  ?

  • F16L 53/70 - Cooling of pipes or pipe systems
  • F16L 1/20 - Accessories therefor, e.g. floats or weights
  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations

41.

Systems and processes for predicting asphaltene blend compatibility

      
Application Number 17882284
Grant Number 11948666
Status In Force
Filing Date 2022-08-05
First Publication Date 2024-02-08
Grant Date 2024-04-02
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Rogel, Estrella
  • Miao, Toni
  • Lee, Eddy
  • Hench, Kyle

Abstract

The present disclosure advantageously refers to systems and methods for predicting an oil mixture's blend compatibility without mixing the components and/or without performing direct blend testing. The techniques described use a correlation between near infrared spectroscopic information, asphaltene solubility parameter Ra, and maltene solubility parameter Po to accurately predict blend compatibility using the equation P=Po(blend)/Ra(blend). A P≥1 indicates the blend is compatible. These techniques are useful in, for example, refineries to predict and therefore reduce or eliminate fouling due to asphaltene deposits.

IPC Classes  ?

  • G01N 31/16 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using titration
  • G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
  • G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
  • G01N 33/28 - Oils
  • G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures

42.

WELL OPERATION TASK MANAGEMENT INTERFACE

      
Application Number 17877586
Status Pending
Filing Date 2022-07-29
First Publication Date 2024-02-01
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Mason, Brandon Allen
  • Genzer, Randy Todd
  • Richardson, Andrea

Abstract

A graphical user interface provides visualization of operation tasks for a well ordered in a sequence. The graphical user interface shows different types of timing for the operation tasks, such as planned timing, estimated timing, and actual timing for the operation tasks. Different types of timing are arranged in a hierarchy so that setting one type of timing for an operation task overrides another type of timing for the operation task. Changes to timing of an operation task are automatically propagated to other operation tasks.

IPC Classes  ?

  • G06Q 10/06 - Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
  • G06F 9/451 - Execution arrangements for user interfaces

43.

METHOD OF REDUCING MERCURY IN STABILIZED CONDENSATE

      
Application Number 18190943
Status Pending
Filing Date 2023-03-27
First Publication Date 2024-01-25
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Long, Christine Marie
  • Chinn, Daniel
  • Bai, Jinhua
  • Cooper, Russell E.
  • Thompson, Joshua A.

Abstract

The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.

IPC Classes  ?

  • F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
  • C10G 7/00 - Distillation of hydrocarbon oils

44.

METHODS OF USING EXPANDABLE POLYMER GROUT FOR PLUG AND ABANDONMENT APPLICATIONS

      
Application Number 18256906
Status Pending
Filing Date 2021-12-09
First Publication Date 2024-01-25
Owner
  • Chevron Australia Pty Ltd (Australia)
  • Chevron U.S.A. Inc. (USA)
Inventor
  • Benet, Paul Michael
  • Fuller, Michael James
  • Arceneaux, Douglas Cory

Abstract

A method for creating an expandable polymer grout plug within or through a wellbore includes providing an expandable polymer grout system to a target location within or through the wellbore, wherein the expandable polymer grout system comprises: (i) an isocyanate component comprising one or more isocyanate compounds; and (ii) an organic polyol component comprising one or more organic polyol compounds; in the presence of (iii) one or more blowing agents; combining the foregoing components of the expandable polymer grout system to facilitate the polymerization reaction to form the expandable polymer grout plug at the target location; and allowing the expandable polymer grout plug to cure at the target location.

IPC Classes  ?

  • C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
  • C09K 8/44 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
  • C09K 8/508 - Compositions based on water or polar solvents containing organic compounds macromolecular compounds
  • C09K 8/575 - Compositions based on water or polar solvents containing organic compounds

45.

ARYLOXY ALKYLAMINES AS FUEL ADDITIVES FOR REDUCING INJECTOR FOULING IN DIRECT INJECTION SPARK IGNITION GASOLINE ENGINE

      
Application Number 18025303
Status Pending
Filing Date 2021-09-15
First Publication Date 2024-01-25
Owner
  • CHEVRON ORONITE COMPANY LLC (USA)
  • CHEVRON U.S.A. INC. (USA)
Inventor
  • Ng, Man Kit
  • Cherpeck, Richard Eugene
  • Chan, Carrie Y.
  • Mendenhall, Kriston George
  • Ickes, Andrew M.
  • Fuentes-Afflick, Peter A.
  • Wang, Justin

Abstract

A fuel composition is described. The composition contains gasoline and an aryloxy alkylamine additive. The structure of the aryloxy alkylamine additive is given by A fuel composition is described. The composition contains gasoline and an aryloxy alkylamine additive. The structure of the aryloxy alkylamine additive is given by A fuel composition is described. The composition contains gasoline and an aryloxy alkylamine additive. The structure of the aryloxy alkylamine additive is given by where the aryloxy alkylamine additive is present in about 10 to about 750 ppm by weight based on total weight of the fuel composition. X is a hydrocarbyl group having 1 or 2 carbon atoms. R1 and R2 are independently hydrogen or substituted hydrocarbyl group having up to 36 carbon atoms.

IPC Classes  ?

  • C10L 1/222 - Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond

46.

DEPLOYMENT METHODS FOR EXPANDABLE POLYMER GROUT FOR PLUG AND ABANDONMENT APPLICATIONS

      
Application Number 18256915
Status Pending
Filing Date 2021-12-09
First Publication Date 2024-01-25
Owner
  • Chevron Australia Pty Ltd (Australia)
  • Chevron U.S.A. Inc. (USA)
Inventor
  • Benet, Paul Michael
  • Fuller, Michael James
  • Arceneaux, Douglas Cory
  • Martinez, Eduardo
  • Farag, George Nabil

Abstract

A deployment system for deploying a polymer grout system includes a first conduit line for conveying an isocyanate component, a second conduit line for conveying an organic polyol component, and a mixer for mixing the isocyanate component and the organic polyol component to form an expandable polymer grout system that is deployed to a target location associated with a wellbore. The deployment system can include a tailpipe and/or bridge plug for directing the expandable polymer grout system to the target location. The disclosure also includes methods of using the foregoing deployment system.

IPC Classes  ?

  • E21B 33/138 - Plastering the borehole wall; Injecting into the formation
  • C09K 8/44 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
  • C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells

47.

IDENTIFICATION OF UNIDENTIFIED SUBTERRANEAN SAMPLES

      
Application Number 18358203
Status Pending
Filing Date 2023-07-25
First Publication Date 2024-01-25
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Yan, Chao
  • Wei, Wei
  • Wang, Wei

Abstract

A method for identifying an unidentified subterranean sample may include comparing values for a subset of fluid chemistry parameters associated with the unidentified subterranean sample to values of corresponding fluid chemistry parameters associated with a plurality of identified subterranean samples. The method may also include determining, based on comparing the values for the subset of fluid chemistry parameters associated with the unidentified subterranean sample to the values of the corresponding fluid chemistry parameters associated with the plurality of identified subterranean samples, an estimated value for a target parameter associated with the unidentified subterranean sample. The method may further include recategorizing the unidentified subterranean sample as being among the plurality of identified subterranean samples based on the estimated value for the target parameter.

IPC Classes  ?

48.

Flushing Ring Alignment Tool

      
Application Number 17867806
Status Pending
Filing Date 2022-07-19
First Publication Date 2024-01-25
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Butterfield, Iv, Albert E.
  • Riede, Jason Frederick

Abstract

An alignment tool is used to install an instrument onto a vessel. The alignment tool includes a semicylindrical body having an inner surface, an outer surface, a process end surface, and an instrument end surface. The inner surface comprises a process bearing surface, an instrument bearing surface, and a ring bearing disposed between the process bearing surface and the instrument bearing surface. The ring bearing comprises a first fastener aperture, a second fastener aperture, and a ring bearing surface having an alignment feature.

IPC Classes  ?

  • B25B 11/02 - Assembly jigs
  • F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment

49.

Three phase separation in a distillation column

      
Application Number 17877929
Grant Number 11878260
Status In Force
Filing Date 2022-07-30
First Publication Date 2024-01-23
Grant Date 2024-01-23
Owner Chevron U.S.A. Inc. (USA)
Inventor Luo, Huping

Abstract

A phase separation assembly includes a stand pipe configured to be located at a bottom of a distillation column, the stand pipe for directing a liquid phase of a hydrocarbon fluid through a bottom outlet to a heating assembly; a return conduit configured to direct heated hydrocarbon fluid from the heating assembly into the distillation column; a ring baffle configured to be located within the distillation column above the return conduit; and a horizontal plate configured to be disposed above the stand pipe. The ring baffle directs the heated hydrocarbon fluid around the inner circumferential wall of the distillation column so that vapor and liquid phases can separate. Weir features on the ring baffle can facilitate separation of vapor and liquid flows of the hydrocarbon.

IPC Classes  ?

  • B01D 3/32 - Other features of fractionating columns
  • C10G 7/00 - Distillation of hydrocarbon oils
  • B01D 3/18 - Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates

50.

VESSEL SAND MONITORING USING INFRARED IMAGES

      
Application Number 18331021
Status Pending
Filing Date 2023-06-07
First Publication Date 2024-01-18
Owner Chevron U. S. A. Inc. (USA)
Inventor
  • Parizek, Jason Robert
  • Popa, Andrei Sergiu
  • Tam, Soong Hay

Abstract

Infrared images of a vessel may be obtained and analyzed to determine the amount of sand in the vessel. Portions of the infrared images with low pixel values may be filtered out as depicting background (e.g., sky, ground). Portions of the infrared images with high pixel values may be filtered out as depicting portions of the vessel without sand. The number of pixels depicting the vessel and the number of pixel depicting portions of the vessel with sand may be used to monitor the amount of sand in the vessel and facilitate maintenance operations for the vessel.

IPC Classes  ?

  • G06T 7/70 - Determining position or orientation of objects or cameras
  • G06V 10/26 - Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
  • G06V 10/56 - Extraction of image or video features relating to colour

51.

SYNTHESIS OF MULTIPLE BOUNDARY LOCATION SCENARIOS FOR WELLS

      
Application Number 17866135
Status Pending
Filing Date 2022-07-15
First Publication Date 2024-01-18
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Holmes, Robert Chadwick
  • Laugier, Fabien Jean Nicolas

Abstract

A group of wells may be located within a region of interest. Multiple scenarios of boundary locations within the group of wells may be obtained. Boundary likelihood curves for the wells may be generated. Different number and/or locations of boundaries within different scenarios of boundary locations may be synthetized into the boundary likelihood curves. A visual representation of the boundary likelihood curves may be generated. The visual representation of the boundary likelihood curves may be used to automatically select and/or guide manual selection of boundary locations in the region of interest.

IPC Classes  ?

  • G01V 3/34 - Transmitting data to recording or processing apparatus; Recording data
  • E21B 43/30 - Specific pattern of wells, e.g. optimizing the spacing of wells

52.

USE OF BLEND OF WASTE PLASTIC WITH BIO FEED FOR CHEMICALS PREPARATION

      
Application Number 18349304
Status Pending
Filing Date 2023-07-10
First Publication Date 2024-01-11
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Liu, Tengfei
  • Schmidt, Joel E.
  • Timken, Hye-Kyung C.

Abstract

Provided is a continuous process for converting waste plastic into recycle for chemical production. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a conversion unit. Useful chemicals are recovered, including C3 and C4 olefins and aromatics.

IPC Classes  ?

  • C10G 69/12 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only including at least one polymerisation or alkylation step

53.

Detecting Surface Cracks Using Acoustic Signals

      
Application Number 18041789
Status Pending
Filing Date 2020-08-18
First Publication Date 2024-01-11
Owner
  • Chevron U.S.A. Inc. (USA)
  • Triad National Security, LLC (USA)
Inventor
  • Remillieux, Marcel
  • Ten Cate, James A.
  • Geesey, Marcie Alberta Stuber
  • Beardslee, Luke Berny
  • Deschamps, Rodney F.
  • Seah, Robert Kwan Meng

Abstract

A system for detecting cracks in an underwater structure can include an acoustic signal transmitter configured to be disposed proximate to, but without physically contacting, the underwater structure, where the acoustic signal transmitter is configured to emit acoustic signals. The system can also include an acoustic field receiver configured to be disposed proximate to, but without physically contacting, the underwater structure, where the acoustic field receiver is configured to receive resulting acoustic fields. The system can further include a controller that is configured to receive the resulting acoustic fields from the acoustic field receiver. The controller can also be configured to analyze the resulting acoustic fields signal. The controller can further be configured to detect, based on analyzing the resulting acoustic fields, a crack in the underwater structure.

IPC Classes  ?

  • G01N 29/04 - Analysing solids
  • G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
  • G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details
  • G01N 29/34 - Generating the ultrasonic, sonic or infrasonic waves

54.

BLEND OF WASTE PLASTIC WITH BIO FEED AND PROCESS OF PREPARATION

      
Application Number 18349276
Status Pending
Filing Date 2023-07-10
First Publication Date 2024-01-11
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Liu, Tengfei
  • Schmidt, Joel E.
  • Timken, Hye-Kyung C.

Abstract

Provided is a composition comprising a blend of a waste plastic and a bio feedstock. Also provided is a process for preparing a stable blend of a plastic and bio feedstock which can be stored or transported if desired. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend can be passed to a conversion unit for conversion of the waste plastic and bio feedstock. The conversion process produces clean monomers for polymerization and chemical intermediates.

IPC Classes  ?

  • C10G 11/05 - Crystalline alumino-silicates, e.g. molecular sieves

55.

USE OF BLEND OF WASTE PLASTIC WITH BIO FEED FOR CIRCULAR ECONOMY POLYETHYLENE PRODUCTION

      
Application Number 18349288
Status Pending
Filing Date 2023-07-10
First Publication Date 2024-01-11
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Schmidt, Joel E.
  • Liu, Tengfei
  • Timken, Hye-Kyung C.

Abstract

Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polyethylene.

IPC Classes  ?

  • C07C 4/06 - Catalytic processes
  • C08F 10/02 - Ethene
  • C07C 7/04 - Purification, separation or stabilisation of hydrocarbons; Use of additives by distillation

56.

USE OF BLEND OF WASTE PLASTIC WITH BIO FEED FOR CIRCULAR ECONOMY POLYPROPYLENE PRODUCTION

      
Application Number 18349300
Status Pending
Filing Date 2023-07-10
First Publication Date 2024-01-11
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Schmidt, Joel E.
  • Liu, Tengfei
  • Timken, Hye-Kyung C.

Abstract

Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polypropylene.

IPC Classes  ?

  • C10G 11/05 - Crystalline alumino-silicates, e.g. molecular sieves
  • C07C 4/06 - Catalytic processes
  • C08J 11/10 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
  • B01D 3/14 - Fractional distillation

57.

MULTI-TUBE REACTOR SYSTEMS AND PROCESSES FOR NO-OXIDATIVE CONVERSION OF METHANE

      
Application Number 18372883
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-01-11
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Li, Lin
  • Luo, Huping
  • Ouyang, Xiaoying
  • Kuperman, Alexander

Abstract

The present disclosure refers to systems and methods for efficiently converting a C1-C3 alkane such as natural gas to a liquid C2-C10 product and hydrogen. Generally, the process comprises flowing the C1-C3 alkane through a plurality of tubes within a vessel wherein the tubes house a catalyst for converting the C1-C3 alkane to the liquid C2-C10 product and hydrogen. The C1-C3 alkane is heated under suitable conditions to produce the liquid C2-C10 product and hydrogen. Advantageously, the C1-C3 alkane is heated by burning a fuel outside the tubes in fuel burning nozzles configured to transfer heat from the burning through the tubes.

IPC Classes  ?

  • C10G 50/00 - Production of liquid hydrocarbon mixtures from lower carbon number hydrocarbons, e.g. by oligomerisation
  • C10G 47/34 - Organic compounds, e.g. hydrogenated hydrocarbons

58.

Wiper Barrier Plug Assemblies

      
Application Number 18467150
Status Pending
Filing Date 2023-09-14
First Publication Date 2024-01-04
Owner Chevron U.S.A. Inc. (USA)
Inventor Carroll, Caleb Kimbrell

Abstract

A wiper barrier plug assembly can include a wiper plug, an expandable plug, and a trigger device that includes a first housing part, a second housing part, and a mechanical trigger, where the wiper plug, the expandable plug, and the trigger device are mechanically coupled together, where the mechanical trigger is disposed between and maintains a separated position of the first housing part and the second housing part relative to each other when the trigger device is in a default trigger device position, where the mechanical trigger is configured to break when the trigger device converts to an actuated state, where the first housing part and the second housing part, when the trigger device is in the actuated state, are configured to move to a collapsed position relative to each other to operate the expandable plug from a default expandable plug position to an expanded position.

IPC Classes  ?

  • E21B 33/16 - Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes using plugs for isolating cement charge; Plugs therefor
  • E21B 33/12 - Packers; Plugs
  • E21B 33/08 - Wipers; Oil savers
  • E21B 47/09 - Locating or determining the position of objects in boreholes or wells; Identifying the free or blocked portions of pipes

59.

Catalyst System And Process Using SSZ-91 And SSZ-95

      
Application Number 18036621
Status Pending
Filing Date 2021-11-11
First Publication Date 2023-12-28
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Zhang, Yihua
  • Lei, Guan Dao

Abstract

An improved hydroisomerization catalyst system and process for making a base oil product using a combined catalyst system comprising SSZ-91 molecular sieve and SSZ-95 molecular sieve. The catalyst system and process generally involves the use of a catalyst comprising an SSZ-91 molecular sieve and a separate catalyst comprising an SSZ-95 molecular sieve to produce dewaxed base oil products by sequentially contacting the catalysts with a hydrocarbon feedstock. The catalyst system and process provide improved base oil yield along with other beneficial base oil properties.

IPC Classes  ?

  • B01J 29/74 - Noble metals
  • C10G 25/03 - Refining of hydrocarbon oils, in the absence of hydrogen, with solid sorbents with ion-exchange material with crystalline alumino-silicates, e.g. molecular sieves
  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • C10G 47/20 - Crystalline alumino-silicate carriers the catalyst containing other metals or compounds thereof

60.

DETECTION OF ANOMALY IN A SUBSURFACE REGION

      
Application Number 18033290
Status Pending
Filing Date 2021-11-10
First Publication Date 2023-12-14
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Holmes, Robert Chadwick
  • Tamakloe, Frank
  • Laugier, Fabien J.

Abstract

A region of interest may include a group of wells. The group of wells may be connected to form a graph of wells, with nodes representing wells and edges representing connections between wells. Connection scores from dynamic time warping paths for individual pairs of connected wells may be used to detect anomalies in the region of interest. Number of boundaries within individual wells may be used to detect anomalies in the region of interest. Connection score and/or number of boundaries may be represented on a visual map of the region of interest.

IPC Classes  ?

  • E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
  • E21B 47/09 - Locating or determining the position of objects in boreholes or wells; Identifying the free or blocked portions of pipes

61.

ITERATIVE WELL LOG DEPTH SHIFTING

      
Application Number 17826400
Status Pending
Filing Date 2022-05-27
First Publication Date 2023-12-14
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Edwards, Mason C.
  • Hoskinson, Joshua S.
  • Saldana, Sandra C.
  • Burch, Donald Neal

Abstract

A reference curve may be used as the goal for alignment when depth shifting one or more target well logs. Traditionally the reference curve has been measured data, and is usually of the same measurement type as the well log for shifting when performed algorithmically. The reference curve may be generated by a weak learner machine learning model. The weak learner machine learning model may preserve shape characteristics and depth information of one or more input curves in the reference curve. Depth shifting of a target well log may be performed by iteratively using sliding correlation windows of differing sizes.

IPC Classes  ?

62.

SYSTEM AND METHOD FOR INTEGRATING NEW ARRANGEMENTS INTO ONE OR MORE SYSTEMS OF APPLICATIONS

      
Application Number 17832285
Status Pending
Filing Date 2022-06-03
First Publication Date 2023-12-07
Owner CHEVRON U.S.A. INC. (USA)
Inventor Bolen, Matthew Scott

Abstract

The present disclosure relates generally to a system and method for rearranging a first system of software applications into a second system of software applications. The system includes a user device, a network, a data storage unit, and a server. The user device can display a first system of applications. The user can offer a number of rearrangements by clicking and dragging the applications and connections points to their desired positions. A predictive model can produce a second system of applications based on these rearrangements.

IPC Classes  ?

  • G06F 9/451 - Execution arrangements for user interfaces
  • G06F 3/04817 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
  • G06F 3/0486 - Drag-and-drop

63.

Partitioning High Pressure Pumps At A Well Site

      
Application Number 18327600
Status Pending
Filing Date 2023-06-01
First Publication Date 2023-12-07
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Han, Seung Jin
  • Beasley, David Cutler

Abstract

Hydraulic fracturing pumps at a well pad comprising multiple wells can be separated into brine pumps and slurry pumps. A split stream barrier separates the brine pumps from the slurry pumps. At least one slurry barrier separates a first slurry pump and a second slurry pump. The split stream barrier and the slurry barrier allow maintenance to be performed on the first slurry pump while the second slurry pump and the brine pumps continue to operate.

IPC Classes  ?

  • E21B 41/00 - Equipment or details not covered by groups
  • E21B 43/26 - Methods for stimulating production by forming crevices or fractures

64.

WELLBORE CEMENTING USING A BURST DISC SUB AND REVERSE CIRCULATION

      
Application Number 18318356
Status Pending
Filing Date 2023-05-16
First Publication Date 2023-11-30
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Bouthilet, Kyle Tate
  • Leathers, Cody Jamail

Abstract

A system for cementing casing using reverse circulation, where the system can include a casing string having multiple casing pipes and a burst disc sub, where the burst disc sub includes a burst disc that is disposed within a cavity formed in the casing string and prevents unwanted flow up the cavity while running casing, where the burst disc, when exposed to a downward force in the cavity exceeding a threshold value, is configured to break apart to allow flow of casing fluid under pressure from the upper portion to the lower portion of the cavity through the burst disc sub, and where the burst disc sub is configured to allow for reverse flow of the casing fluid therethrough when a cement slurry is injected down an annulus formed between the casing string and a formation wall of a wellbore.

IPC Classes  ?

  • E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
  • E21B 34/06 - Valve arrangements for boreholes or wells in wells

65.

MOLECULAR SIEVE BORON SSZ-121, ITS SYNTHESIS AND USE

      
Application Number 18325211
Status Pending
Filing Date 2023-05-30
First Publication Date 2023-11-30
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Zones, Stacey I.
  • Chen, Cong-Yan

Abstract

A novel synthetic crystalline molecular sieve material, designated boron SSZ-121 is provided. The boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The boron SSZ-121 may be used in organic compound conversion reactions and/or sorptive processes.

IPC Classes  ?

  • B01J 29/86 - Borosilicates; Aluminoborosilicates
  • C01B 37/00 - Compounds having molecular sieve properties but not having base-exchange properties
  • B01J 27/045 - Platinum group metals
  • B01J 37/04 - Mixing
  • B01J 37/00 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
  • B01J 37/03 - Precipitation; Co-precipitation
  • C01B 3/40 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst

66.

MOLECULAR SIEVE SSZ-113 WITH HIGH ACIDITY, ITS SYNTHESIS AND USE

      
Application Number 18325246
Status Pending
Filing Date 2023-05-30
First Publication Date 2023-11-30
Owner CHEVRON U.S.A. INC. (USA)
Inventor Zones, Stacey I.

Abstract

A novel synthetic crystalline molecular sieve material, designated SSZ-113 is provided which exhibits increased acidity. The SSZ-113 can be synthesized using 1,3-bis(2,3-dimethyl-1H-imidazolium)propane dications as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-113 of increased acidity may be used in organic compound conversion and/or sorptive processes.

IPC Classes  ?

  • C01B 33/26 - Aluminium-containing silicates
  • B01J 29/08 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
  • C10G 35/095 - Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • B01J 37/08 - Heat treatment

67.

MOLECULAR SIEVE SSZ-117x WITH HIGH ACIDITY

      
Application Number 18325342
Status Pending
Filing Date 2023-05-30
First Publication Date 2023-11-30
Owner CHEVRON U.S.A. INC. (USA)
Inventor Zones, Stacey I.

Abstract

A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117x, is provided which exhibits increased acidity. The SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-117x of increased acidity may be used in organic compound conversion reactions and/or sorptive processes.

IPC Classes  ?

  • C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
  • C01B 39/06 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements
  • B01J 29/04 - Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
  • B01J 29/70 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups

68.

MOLECULAR SIEVE BORON SSZ-113

      
Application Number 18325475
Status Pending
Filing Date 2023-05-30
First Publication Date 2023-11-30
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Zones, Stacey I.
  • Chen, Cong-Yan

Abstract

Provided is a novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-113. The boron SSZ-113 can be synthesized using 1,3 bis(2,3-dimethyl-1H-imidazolium) propane dications as a structure directing agent. The boron SSZ-113 may be used in organic compound conversion reactions and/or sorptive processes, and in particular, in reforming reactions.

IPC Classes  ?

  • B01J 29/86 - Borosilicates; Aluminoborosilicates
  • B01J 37/30 - Ion-exchange
  • B01J 37/04 - Mixing
  • B01J 37/00 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
  • B01J 37/03 - Precipitation; Co-precipitation
  • C01B 39/12 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements the replacing atoms being boron atoms
  • C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
  • C01B 39/02 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
  • C10G 35/095 - Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves

69.

COMPOSITIONS CONTAINING FRICTION REDUCERS AND METHODS OF USING THEREOF IN OIL AND GAS OPERATIONS

      
Application Number 18326409
Status Pending
Filing Date 2023-05-31
First Publication Date 2023-11-30
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Matovic, Gojko
  • Nizamidin, Nabijan
  • Unomah, Michael Ogechukwuka
  • Kim, Do Hoon
  • Dwarakanath, Varadarajan
  • Malik, Taimur
  • Pinnawala, Gayani W.
  • Alexis, Dennis A.
  • Lau, Samuel Wei-En

Abstract

Described are compositions and methods for use in oil and gas operations. The methods can decrease pressure drop along a lateral segment of a wellbore in an unconventional subterranean formation.

IPC Classes  ?

  • E21B 43/267 - Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
  • C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
  • C09K 8/584 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants

70.

MOLECULAR SIEVE BORON SSZ-117x

      
Application Number 18325228
Status Pending
Filing Date 2023-05-30
First Publication Date 2023-11-30
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Zones, Stacey I.
  • Chen, Cong-Yan

Abstract

A novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-117x, is provided. The boron SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve the boron molecular sieve. The boron SSZ-117x may be used in organic compound conversion reactions, such as reforming, and/or sorptive processes.

IPC Classes  ?

  • C01B 33/26 - Aluminium-containing silicates
  • B01J 29/12 - Noble metals
  • C10G 35/095 - Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • B01J 37/20 - Sulfiding

71.

MOLECULAR SIEVE SSZ-121 WITH HIGH ACIDITY, ITS SYNTHESIS AND USE

      
Application Number 18325404
Status Pending
Filing Date 2023-05-30
First Publication Date 2023-11-30
Owner CHEVRON U.S.A. INC. (USA)
Inventor Zones, Stacey I.

Abstract

A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-121 is provided which exhibits increased acidity. The SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-121 of increased acidity may be used in organic compound conversion reactions and/or sorptive processes.

IPC Classes  ?

  • C01B 33/26 - Aluminium-containing silicates
  • B01J 29/08 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
  • C10G 35/095 - Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • B01J 37/08 - Heat treatment

72.

ENHANCING WATER CHEMISTRY FOR IMPROVED WELL PERFORMANCE

      
Application Number 18319884
Status Pending
Filing Date 2023-05-18
First Publication Date 2023-11-23
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Wang, Wei
  • Wei, Wei
  • Tang, Yula
  • Visser, Johannes Cornelis
  • Leach, David Gilbert
  • Lu, Haiping
  • Lattimer, Stefan Kristopher Koszutski

Abstract

A method for enhancing water chemistry at a surface for improved well performance may include testing water at the surface to identify a pH level of the water, a type of solid-generating component in the water, and an amount of a solid-generating component in the water. The method may also include identifying a type and an amount of an additive based on identifying the type and the amount of the solid-generating component, where the additive is configured to generate a solid when mixed with the water. The method may further include mixing the water and an additive at the surface to generate the solid and enhanced water, where the solid comprises at least some of the solid-generating components of the water. The enhanced water may be usable for a field operation to cause the improved well performance, and the solid may be removable from the enhanced water at the surface.

IPC Classes  ?

  • C09K 8/57 - Compositions based on water or polar solvents
  • C09K 8/58 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids

73.

ONE-POT SYNTHESIS FOR DELAMINATED ZEOLITES

      
Application Number 18322244
Status Pending
Filing Date 2023-05-23
First Publication Date 2023-11-23
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Katz, Alexander
  • Martinez, Abraham
  • Xu, Le
  • Zones, Stacey I.

Abstract

Provided is a method of preparing a delaminated Al-SSZ-70 zeolite. The method combines direct hydrothermal synthesis with CTA+ cations and an imidazolium OSDA. A post-synthetic high shear mixing treatment is also preferred. In one embodiment, an Al-SSZ-70 zeolite seed is used, preferably with a Si/Al ratio of at least 50.

IPC Classes  ?

  • B01J 29/70 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups
  • B01J 37/08 - Heat treatment
  • B01J 37/04 - Mixing
  • B01J 35/10 - Solids characterised by their surface properties or porosity

74.

Process for the Production of Renewable Distillate-Range Hydrocarbons

      
Application Number 18116747
Status Pending
Filing Date 2023-03-02
First Publication Date 2023-11-23
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Chang, Bong Kyu
  • Timken, Hye-Kyung Cho
  • Young, Michelle K.

Abstract

A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.

IPC Classes  ?

  • C07C 2/22 - Metal halides; Complexes thereof with organic compounds
  • C10G 50/02 - Production of liquid hydrocarbon mixtures from lower carbon number hydrocarbons, e.g. by oligomerisation of hydrocarbon oils for lubricating purposes

75.

VISUALIZATION OF DIRECTIONAL INFLUENCE OF WELLS ON CORRELATION

      
Application Number 18027878
Status Pending
Filing Date 2021-11-10
First Publication Date 2023-11-16
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Holmes, Robert Chadwick
  • Laugier, Fabien J.

Abstract

A well may be selected from a group of wells. Multiple scenarios of boundary locations within the selected well may be determined based on propagation of boundaries from other wells to the selected well. A visual representation of the multiple scenarios of boundary locations within the selected well may be provided based on spatial arrangement of the wells within the group of wells. A visual representation of the spatial arrangement of the wells within the group of wells may be provided.

IPC Classes  ?

  • E21B 47/022 - Determining slope or direction of the borehole, e.g. using geomagnetism

76.

GREEN AND BLUE HYDROGEN ALTERNATIVES TO PRODUCED WATER MANAGEMENT AND BENEFICIAL REUSE

      
Application Number 18095893
Status Pending
Filing Date 2023-01-11
First Publication Date 2023-11-16
Owner CHEVRON U.S.A. INC. (USA)
Inventor Verner, Frederick

Abstract

The present disclosure refers to systems and methods for remediating a produced water from an oil or gas well. A representative process may comprise optionally purifying and then electrolyzing the produced water to produce at least hydrogen and oxygen; storing, selling, releasing, or converting oxygen to a useful oxygen product; and storing, selling, releasing, or converting hydrogen to a useful hydrogen product and to produce fresh water for beneficial reuse. Alternatively or additionally, the optionally purified produced water may be subjected to steam reformation with methane to produce carbon dioxide and hydrogen which can be used as desired.

IPC Classes  ?

  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 15/08 - Supplying or removing reactants or electrolytes; Regeneration of electrolytes
  • C02F 1/58 - Treatment of water, waste water, or sewage by removing specified dissolved compounds
  • C01B 3/24 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons

77.

FLOATING UNIT WITH UNDER KEEL TANK

      
Application Number 18246210
Status Pending
Filing Date 2021-09-30
First Publication Date 2023-11-09
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Ma, Wei
  • Yang, Fei
  • Payne, Jack Darryl
  • Leitch, Peter
  • Lu, Renjian Roger
  • Wang, Tao
  • Husby, Jon
  • Storaune, Erling

Abstract

A tank is secured under the keel of a floating structure for offshore energy development. The tank is filled with ballast material that supplements or replaces the ballast already present on the floating structure, thereby gaining larger topsides payload capacity for the floating structure or increasing stability and motion performance of the floating structure.

IPC Classes  ?

  • B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
  • B63B 43/14 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using outboard floating members
  • B63B 1/10 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls

78.

SYNTHESIS OF ALUMINUM-CONTAINING CIT-13 AND CIT-15 MOLECULAR SIEVES

      
Application Number 17739301
Status Pending
Filing Date 2022-05-09
First Publication Date 2023-11-09
Owner CHEVRON U.S.A. INC. (USA)
Inventor Lew, Christopher Michael

Abstract

Methods are provided for preparing molecular sieves CIT-13 and CIT-15 having aluminum incorporated into the framework structures.

IPC Classes  ?

  • C01B 39/06 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements

79.

PROCESS AND SYSTEM FOR BASE OIL PRODUCTION

      
Application Number 18042724
Status Pending
Filing Date 2021-08-30
First Publication Date 2023-11-02
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Bhattacharya, Subhasis
  • Zhang, Yihua
  • Lei, Guan-Dao
  • Pradhan, Ajit R.

Abstract

An improved process and catalyst system for making a base oil product and for improving base oil cloud point and pour point characteristics, while also providing good product yields. The process and catalyst system generally involves the use of a layered catalyst system comprising an SSZ-91 catalyst and an SSZ-32X catalyst arranged to sequentially contact a hydrocarbon feedstock with both catalysts and thereby provide dewaxed base oil products.

IPC Classes  ?

  • C10G 45/62 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
  • C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
  • C10G 65/04 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only refining steps
  • B01J 29/74 - Noble metals

80.

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYETHYLENE AND BASE OIL VIA REFINERY HYDROCRACKING UNIT

      
Application Number 18128350
Status Pending
Filing Date 2023-03-30
First Publication Date 2023-11-02
Owner Chevron U.S.A. Inc. (USA)
Inventor Timken, Hye-Kyung C.

Abstract

Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3-C4 olefin/paraffin mixture, and optionally naphtha, is recovered from the hydrocracking unit and passed to a steam cracker to make ethylene. A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.

IPC Classes  ?

  • C07C 4/22 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
  • C10G 1/00 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
  • C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
  • C10M 101/02 - Petroleum fractions

81.

AMORPHOUS SILICA-ALUMINA COMPOSITION AND METHOD FOR MAKING THE SAME

      
Application Number 18344530
Status Pending
Filing Date 2023-06-29
First Publication Date 2023-11-02
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Jothimurugesan, Kandaswamy
  • Timken, Hye-Kyung

Abstract

A process of making a silica-alumina composition having improved properties is provided. The process includes (a) mixing an aqueous solution of a silicon compound and an aqueous solution of an aluminum compound and an acid, while maintaining a pH of the mixed solution in a range of 1 to 3, and obtaining an acidified silica-alumina sol; (b) adding an aqueous solution of a base precipitating agent to the acidified silica-alumina sol to a final pH in a range of 5 to 8, and co-precipitating a silica-alumina slurry, wherein the base precipitating agent is selected from ammonium carbonate, ammonium bicarbonate, and any combination thereof; (c) optionally, hydrothermally aging the silica-alumina slurry to form a hydrothermally aged silica-alumina slurry; and (d) recovering a precipitate solid from the silica-alumina slurry or the hydrothermally aged silica-alumina slurry, wherein the precipitate solid comprises the silica-alumina composition.

IPC Classes  ?

  • C01F 7/34 - Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
  • B01J 21/12 - Silica and alumina
  • B01J 35/10 - Solids characterised by their surface properties or porosity
  • B01J 37/03 - Precipitation; Co-precipitation
  • B01J 37/04 - Mixing

82.

WELL CORRELATION THROUGH INTERMEDIARY WELL

      
Application Number 18027858
Status Pending
Filing Date 2021-11-10
First Publication Date 2023-11-02
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Holmes, Robert Chadwick
  • Laugier, Fabien J.
  • Harris, Ashley D.
  • Sullivan, Morgan David

Abstract

An intermediary well may be selected for a group of wells. The intermediary well may be used as an origin point from which branching wells paths are generated to connect the group of wells through the intermediary well. A shortest path between the intermediary well and the group of wells along the branching well paths may be identified, and the group of wells may be aligned along the shortest path. Boundaries of the intermediary well may be propagated to the aligned group of wells to establish correlation between segments of the intermediary well and segments of the aligned group of wells.

IPC Classes  ?

  • G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
  • E21B 49/00 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
  • E21B 41/00 - Equipment or details not covered by groups

83.

Tetrametallic bulk hydroprocessing catalysts

      
Application Number 18344450
Grant Number 11951458
Status In Force
Filing Date 2023-06-29
First Publication Date 2023-11-02
Grant Date 2024-04-09
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Ouyang, Xiaoying
  • Duma, Viorel
  • Kuperman, Alexander
  • Uckung, Ibrahim
  • Maesen, Theodorus Ludovicus Michael
  • Brait, Axel
  • Wilson, Charles

Abstract

Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

IPC Classes  ?

  • C10G 45/00 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
  • B01J 21/06 - Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
  • B01J 23/28 - Molybdenum
  • B01J 23/30 - Tungsten
  • B01J 23/755 - Nickel
  • B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
  • B01J 35/31 - Density
  • B01J 35/61 - Surface area
  • B01J 35/63 - Pore volume
  • B01J 37/00 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
  • B01J 37/03 - Precipitation; Co-precipitation
  • B01J 37/04 - Mixing
  • B01J 37/08 - Heat treatment
  • B01J 37/20 - Sulfiding
  • C07C 5/10 - Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of aromatic six-membered rings
  • C10G 47/00 - Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, to obtain lower boiling fractions
  • C10G 49/00 - Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups , , , , or

84.

MACHINE LEARNING APPROACH FOR GENERATING SUBSURFACE REPRESENTATIONS IN LAYER-SPACE

      
Application Number 17732974
Status Pending
Filing Date 2022-04-29
First Publication Date 2023-11-02
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Li, Lewis
  • Sun, Tao

Abstract

Subsurface representations that define subsurface configurations in layer space are used to train a machine learning model. The trained machine learning model is used to generate synthetic subsurface representations in the layer space. The synthetic subsurface representations are generated to match one or more conditioning characteristics. Conditioning of the trained machine learning model is performed in latent space.

IPC Classes  ?

  • E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons
  • G06N 3/04 - Architecture, e.g. interconnection topology

85.

SYSTEM AND METHOD FOR PORO-ELASTIC MODELING AND MICROSEISMIC DEPLETION DELINEATION

      
Application Number 18159536
Status Pending
Filing Date 2023-01-25
First Publication Date 2023-10-26
Owner
  • Chevron U.S.A. Inc. (USA)
  • CHEVRON CANADA LIMITED (Canada)
Inventor
  • Shabelansky, Andrey H.
  • Nihei, Kurt T.
  • Bevc, Dimitri
  • Fradelizio, Gian Luigi
  • Tracey, Sinead M.

Abstract

A method is described for monitoring a stimulated reservoir volume (SRV) including receiving simulation parameters, performing 3D fully coupled quasi-static poro-elastic finite difference modeling using the simulation parameters, wherein the 3D fully coupled quasi-static poro-elastic finite difference modeling is based on a rescaling of solid rock and fluid flow density parameters and generates simulated temporal quasi-static stresses, and pore pressure. In addition, simulated stresses may be used for performing calculation of the 3D rotation of the simulated stresses to principal directions; performing calculation of the temporal 3D Mohr-Coulomb (MC) failure criteria from the calculated principal stresses and the simulated pore pressure for all or selected time steps; and displaying the computed temporal MC failure criteria results on a graphical display. The method may also be used in time-lapse monitoring of the reservoir for microseismic depletion delineation.

IPC Classes  ?

  • G01V 1/28 - Processing seismic data, e.g. analysis, for interpretation, for correction
  • G01V 1/18 - Receiving elements, e.g. seismometer, geophone
  • G01V 1/34 - Displaying seismic recordings

86.

PRESSURIZED RESERVOIR CORE SAMPLE TRANSFER TOOL SYSTEM

      
Application Number 18345784
Status Pending
Filing Date 2023-06-30
First Publication Date 2023-10-26
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Montoya, James Daniel
  • Boudreaux, Jonathon Crain
  • Rodriguez, Patrick
  • Brinkley, Cole Thomas
  • Seltzer, Scott Jeffrey
  • Wigand, Marcus Oliver
  • Yang, Zheng
  • Rauschhuber, Michael T.
  • Peacher, Edward Russell

Abstract

A method of transferring at least one subterranean core sample from a retrieval vessel to a testing vessel can include removing at least one pressure barrier on the retrieval vessel using a linear actuator while maintaining a sampling pressure on the at least one subterranean core sample at which the at least one subterranean core sample is taken from a subterranean formation. The method can also include pressurizing the testing vessel to the sampling pressure using the linear actuator, and transferring the at least one subterranean core sample from the retrieval vessel to the testing vessel. The method can further include sealing the testing vessel with the at least one subterranean core sample at the sampling pressure, where the testing vessel allows the at least one subterranean core sample to be tested while the at least one subterranean core sample is maintained at the sampling pressure.

IPC Classes  ?

  • E21B 25/08 - Coating, freezing, consolidating cores; Recovering uncontaminated cores or cores at formation pressure
  • E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
  • G01N 33/24 - Earth materials

87.

POLYANIONIC SURFACTANTS AND METHODS OF MAKING AND USING THEREOF

      
Application Number 17920973
Status Pending
Filing Date 2021-04-26
First Publication Date 2023-10-19
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Pinnawala, Gayani W.
  • Palayangoda, Sujeewa S.
  • Winslow, Gregory A.
  • Dwarakanath, Varadarajan

Abstract

The present disclosure is directed to polyanionic surfactants, surfactant mixtures, compositions derived thereof, and uses thereof such as in oil and gas operations. Methods of making polyanionic surfactants are also described.

IPC Classes  ?

  • C09K 8/584 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
  • C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
  • C09K 8/60 - Compositions for stimulating production by acting on the underground formation
  • C09K 8/68 - Compositions based on water or polar solvents containing organic compounds
  • C07C 309/22 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic unsaturated carbon skeleton containing carboxyl groups bound to the carbon skeleton

88.

CRYSTALLITE SIZE IN ROCK SAMPLES

      
Application Number 18003469
Status Pending
Filing Date 2020-07-01
First Publication Date 2023-10-19
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Stokes, Rebecca
  • Montgomery, Paul
  • Rathbun, Andrew P.

Abstract

A method comprises identifying a depositional form of a mineral phase in a sedimentary rock sample based on a measurement (a) of a parameter indicative of a size of crystallites of the mineral phase in the rock sample.

IPC Classes  ?

89.

DRILL BIT FOR DOWNHOLE ELECTROCRUSHING DRILLING

      
Application Number 18340709
Status Pending
Filing Date 2023-06-23
First Publication Date 2023-10-19
Owner
  • Halliburton Energy Services, Inc. (USA)
  • Chevron U.S.A. Inc. (USA)
  • SDG LLC (USA)
Inventor Moeny, William M.

Abstract

An electrocrushing drill bit comprises a bit body and at least one electrode coupled to a power source and the bit body, wherein the at least one electrode having a distal portion for engaging with a surface of a wellbore. The electrocrushing drill bit comprises a ground structure coupled to the bit body proximate to the at least one electrode and having a distal portion for engaging with the surface of the wellbore, wherein the ground structure comprises a transverse ground structure.

IPC Classes  ?

  • E21B 7/15 - Drilling by use of heat, e.g. flame drilling of electrically generated heat
  • E21C 37/18 - Other methods or devices for dislodging with or without loading by electricity
  • E21B 10/00 - Drill bits
  • E21B 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids

90.

GENERATING A RESERVOIR PERFORMANCE FORECAST

      
Application Number 17719022
Status Pending
Filing Date 2022-04-12
First Publication Date 2023-10-12
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Yang, Changdong
  • He, Jincong
  • Onishi, Tsubasa
  • Zhang, Ronglei
  • Zhang, Yanbin
  • Du, Song
  • Wang, Zhenzhen
  • Guan, Xiaoyue
  • Chen, Jianping
  • Wen, Xian-Huan
  • Ogunyomi, Babafemi Anthony

Abstract

Embodiments for generating a reservoir performance forecast are provided. The embodiments may be executed by a computer system. In one embodiment, a method includes obtaining inflow performance relationship data generated from a physics-based subsurface-surface coupled simulation model having a surface, a subsurface, and one or more wells fluidly connecting the subsurface to the surface. The inflow performance relationship data comprises performance data for at least one phase of fluid for each well. The method also includes generating a performance forecast for the reservoir using a subsurface simulator and a surface simulator. The subsurface simulator uses the inflow performance relationship data to represent the subsurface during generation of the performance forecast, and the performance forecast satisfies constraints solved by the surface simulator. In one embodiment, a method does not utilize a surface simulator.

IPC Classes  ?

  • E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
  • G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model

91.

PH CONTROL IN FLUID TREATMENT

      
Application Number 18160710
Status Pending
Filing Date 2023-01-27
First Publication Date 2023-10-12
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Palayangoda, Sujeewa S.
  • Spilker, Kerry Kennedy
  • Subrahmanyan, Sumitra
  • Pinnawala, Gayani W.
  • Thach, Sophany
  • Winslow, Gregory A.
  • Alexis, Dennis Arun
  • Linnemeyer, Harold Charles
  • Theriot, Timothy P.
  • Jackowski, Les Leszek
  • Cibotti, Francesca

Abstract

Embodiments of treating fluid comprising hydrocarbons, water, and polymer being produced from a hydrocarbon-bearing formation are provided. One embodiment comprises adding a concentration of a viscosity reducer to the fluid to degrade the polymer present in the fluid and adding a concentration of a neutralizer to the fluid to neutralize the viscosity reducer in the fluid. The viscosity reducer is buffered at a pH of 7 or less (e.g., at a pH of from 2 to 7, such as at a pH of from 3.5 to 7, or at a pH of from 5 to 7). The addition of the concentration of the viscosity reducer is in a sufficient quantity to allow for complete chemical degradation of the polymer prior to the addition of the concentration of the neutralizer in the fluid such that excess viscosity reducer is present in the fluid. The addition of the concentration of the neutralizer is sufficiently upstream of any surface fluid processing equipment to allow for complete neutralization of the excess viscosity reducer such that excess neutralizer is present in the fluid prior to the fluid reaching any of the surface fluid processing equipment.

IPC Classes  ?

  • C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
  • E21B 21/06 - Arrangements for treating drilling fluids outside the borehole
  • C09K 8/03 - Specific additives for general use in well-drilling compositions
  • E21B 43/38 - Arrangements for separating materials produced by the well in the well

92.

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYPROPYLENE VIA REFINERY FCC UNIT

      
Application Number 18128336
Status Pending
Filing Date 2023-03-30
First Publication Date 2023-10-05
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Schmidt, Joel E.
  • Timken, Hye-Kyung C.
  • Liu, Tengfei
  • Grove, Richard L.
  • Chen, Kaidong

Abstract

Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the FCC unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene.

IPC Classes  ?

  • C07C 4/22 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
  • C10G 1/00 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only

93.

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYETHYLENE VIA REFINERY FCC UNIT

      
Application Number 18128306
Status Pending
Filing Date 2023-03-30
First Publication Date 2023-10-05
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Liu, Tengfei
  • Schmidt, Joel E.
  • Timken, Hye-Kyung C.
  • Grove, Richard L.
  • Chen, Kaidong

Abstract

Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and passed to a steam cracker to make ethylene.

IPC Classes  ?

  • C08J 11/14 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
  • C08F 110/02 - Ethene

94.

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYPROPYLENE AND BASE OIL VIA REFINERY HYDROCRACKING UNIT

      
Application Number 18128366
Status Pending
Filing Date 2023-03-30
First Publication Date 2023-10-05
Owner Chevron U.S.A. Inc. (USA)
Inventor Timken, Hye-Kyung C.

Abstract

Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the hydrocracking unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene. A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.

IPC Classes  ?

  • C10G 47/34 - Organic compounds, e.g. hydrogenated hydrocarbons
  • C10G 1/00 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C10G 45/72 - Controlling or regulating
  • C08F 10/06 - Propene

95.

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYETHYLENE AND BASE OIL VIA REFINERY CRUDE UNIT

      
Application Number 18128390
Status Pending
Filing Date 2023-03-30
First Publication Date 2023-10-05
Owner Chevron U.S.A. Inc. (USA)
Inventor Timken, Hye-Kyung C.

Abstract

Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt.% of the blend. The blend is passed to a refinery crude unit. A liquid petroleum gas C3-C4 olefin/paraffin mixture, and optionally naphtha stream, is recovered from the crude unit and passed to a steam cracker to make ethylene. Product streams from the crude unit can also be passed to a hydrocracking unit, with a recovered heavy fraction then being passed to an isomerization dewaxing unit to prepare base oil.

IPC Classes  ?

  • C07C 4/22 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
  • C10G 1/00 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only

96.

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYPROPYLENE AND BASE OIL VIA REFINERY CRUDE UNIT

      
Application Number 18128429
Status Pending
Filing Date 2023-03-30
First Publication Date 2023-10-05
Owner Chevron U.S.A. Inc. (USA)
Inventor Timken, Hye-Kyung C.

Abstract

Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery crude unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the crude unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed to a dehydrogenation unit to produce additional propylene. Product streams from the crude unit can also be passed to a hydrocracking unit, with a recovered heavy fraction then being passed to an isomerization dewaxing unit to prepare base oil.

IPC Classes  ?

  • C07C 4/22 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
  • C10G 1/00 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only

97.

PROCESS FOR STABLE BLEND OF WASTE PLASTIC WITH PETROLEUM FEED FOR FEEDING TO OIL REFINERY UNITS AND PROCESS OF PREPARING SAME

      
Application Number 18128444
Status Pending
Filing Date 2023-03-30
First Publication Date 2023-10-05
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Timken, Hye-Kyung C.
  • Liu, Tengfei
  • Schmidt, Joel E.
  • Chaudhuri, Kaustav

Abstract

Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and/or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and/or polypropylene and heating the mixture above the melting point of the plastic, but less than 500° F. Then cooling the plastic melt and petroleum feedstock liquid blend with mixing to a temperature below the melting point of the plastic.

IPC Classes  ?

  • C08J 11/20 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with hydrocarbons or halogenated hydrocarbons

98.

SYNTHESIS OF *MRE FRAMEWORK TYPE MOLECULAR SIEVES

      
Application Number 17703067
Status Pending
Filing Date 2022-03-24
First Publication Date 2023-09-28
Owner CHEVRON U.S.A. INC. (USA)
Inventor
  • Xie, Dan
  • Jensen, Kurt Owen
  • Ojo, Adeola Florence

Abstract

A method is provided for synthesizing *MRE molecular sieves using an organic structure directing agent which comprises a 1-ethylpyridinium cation.

IPC Classes  ?

  • C01B 39/48 - Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
  • B01J 29/70 - Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups

99.

Systems And Method For Creating A Predictive Model For Optimizing Drill Parameters

      
Application Number 17656185
Status Pending
Filing Date 2022-03-23
First Publication Date 2023-09-28
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Bolen, Matthew Scott
  • Ramchune, Devanand
  • Weller, Ryan Michael

Abstract

A system and method for calculating optimal parameters for drilling are provided. The system includes a memory, a data storage unit, and a processor. The method comprises retrieving well information, analyzing the information, reading current and past well parameters, and calculating an optimal set of parameters by a predetermined algorithm.

IPC Classes  ?

  • E21B 44/02 - Automatic control of the tool feed
  • G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators

100.

System and method for seismic depth uncertainty analysis

      
Application Number 17654630
Grant Number 11822030
Status In Force
Filing Date 2022-03-14
First Publication Date 2023-09-14
Grant Date 2023-11-21
Owner Chevron U.S.A. Inc. (USA)
Inventor
  • Chen, Jinsong
  • Liu, Huafeng
  • Shabelansky, Andrey Hanan
  • Hoelting, Cory James
  • Yang, Min
  • Tan, Ying
  • Amaru, Maisha Lara

Abstract

A method is described for seismic depth uncertainty analysis including receiving wavelet basis functions and cutoff thresholds and randomly perturbing wavelet coefficients in reduced wavelet space based on the wavelet basis functions and the cutoff thresholds to generate a plurality of random wavelet fields; receiving a reference model in a depth domain; transforming the plurality of random wavelet fields to the depth domain and combining them with the reference model to form candidate models; performing a hierarchical Bayesian modeling with Markov Chain Monte Carlo (MCMC) sampling methods using the candidate models as input to generate a plurality of realizations; and computing statistics of the plurality of realizations to estimate depth uncertainty. The method may be executed by a computer system.

IPC Classes  ?

  • G01V 1/34 - Displaying seismic recordings
  • G01V 1/28 - Processing seismic data, e.g. analysis, for interpretation, for correction
  • G06N 7/01 - Probabilistic graphical models, e.g. probabilistic networks
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