Abrégé

In some examples, the disclosure provides a method for deploying a plurality N of seismic sensors, wherein each seismic sensor is adapted to measure seismic energy with at least one gain, within a survey area, the method comprising: obtaining a plurality M of gains from which the at least one gain may be selected; configuring the plurality N of seismic sensors such that, for each given gain of the obtained plurality M of gains, at least N/M seismic sensors are adapted to measure the seismic energy with at least one corresponding gain; and deploying the plurality N of configured seismic sensors on the survey area.

Classes IPC  ?

• G01V 1/20 - Aménagements d'éléments récepteurs, p.ex. oscillogrammes géophoniques
• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
• G01V 1/24 - Enregistrement des données sismiques
• G01V 1/30 - Analyse

Abrégé

An integrated system comprising a desalination plant comprising a reverse osmosis (RO) array configured to produce an RO permeate blending stream, a blending system comprising a flow line for a fines stabilizing additive blending stream and configured to blend the RO permeate blending stream with the fines stabilizing additive blending stream to produce a blended low salinity water stream having a salinity of less than or equal to 5,000, 4,000, 3,000, 2,000, 1,000, 500, 400, or 300 ppm and a molar ratio of divalent cations to monovalent cations of greater than about 0.2, 0.3, or 0.4, a control unit configured to control operation of the blending system, and an injection system for one or more injection wells, wherein the one or more injection wells penetrate an oil-bearing layer of a reservoir. A method is also provided.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement

Abrégé

The problem of lost circulation is pertinent to the oil industry. To prevent fluid loss, a lost circulation material (LCM), or more generally, a plugging material, can be used to effectively plug the fractures in the rock formation. If the fractures are in the production zone, it is also ideal to unplug them when the drilling operation is complete. Therefore, a material engineered to degrade after a desired period would be useful. In examples, a plugging material has been developed by gelling an oil-based fluid using a low molecular weight gelator, dibenzylidene sorbitol (DBS). DBS gels are robust and show plugging behavior. DBS is shown to chemically degrade in presence of an acid. Hence, a self-degrading gel can be synthesized by incorporating an acid into the system. Further, by varying the type and concentration of the acid, the degradation time of the gel can be controlled.

Classes IPC  ?

• C09K 8/035 - Additifs organiques
• C09K 8/03 - Additifs spécifiques à usage général dans les compositions pour le forage des puits
• C09K 8/42 - Compositions de cimentation, p.ex. pour la cimentation des tubes dans les trous de forage; Compositions de bouchage, p.ex. pour tuer des puits
• E21B 33/138 - Plâtrage de la paroi du trou de forage; Injections dans la formation
• E21B 21/00 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p.ex. en utilisant l'air d'échappement du moteur

Abrégé

The problem of lost circulation is pertinent to the oil industry. To prevent fluid loss, a lost circulation material (LCM), or more generally, a plugging material, can be used to effectively plug the fractures in the rock formation. If the fractures are in the production zone, it is also ideal to unplug them when the drilling operation is complete. Therefore, a material engineered to degrade after a desired period would be useful. In examples, a plugging material has been developed by gelling an oil-based fluid using a low molecular weight gelator, dibenzylidene sorbitol (DBS). DBS gels are robust and show plugging behavior. DBS is shown to chemically degrade in presence of an acid. Hence, a self-degrading gel can be synthesized by incorporating an acid into the system. Further, by varying the type and concentration of the acid, the degradation time of the gel can be controlled.

Classes IPC  ?

• C09K 8/035 - Additifs organiques
• C09K 8/502 - Compositions à base d'huile
• C09K 8/506 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques

Abrégé

In some examples, the disclosure provides a method for determining a drift in clock data that is provided by a clock of a seismic sensor. The sensor is exposed to an ambient temperature that varies over time. The method includes obtaining temperature data associated with the ambient temperature as a function of time. The method also includes obtaining the clock data. The method also includes obtaining timestamp data provided by a global navigation satellite system. The method also includes determining drift data which minimizes a difference of a temporal drift in the clock data, based on the timestamp data and the temperature data. The method also includes outputting corrective data based on the determined drift data.

Classes IPC  ?

• G06F 1/14 - Dispositions pour le contrôle du temps, p.ex. horloge temps réel
• G06F 1/12 - Synchronisation des différents signaux d'horloge

Abrégé

An offshore node deployment system includes a control system, a surface vessel including a deck, and a propulsion system in signal communication with the control system, a node storage container supported by the deck of the surface vessel, wherein the node storage container is configured to store a plurality of nodes which are physically disconnected from each other, and a node deployment system supported by the deck of the surface vessel and controllable by the control system, wherein the node deployment system is configured to retrieve the nodes from the node storage container and deploy the nodes to a subsea location.

Classes IPC  ?

• B63G 8/00 - Navires submersibles, p.ex. sous-marins
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

An offshore node deployment system includes a control system, a surface vessel including a deck, and a propulsion system in signal communication with the control system, a node storage container supported by the deck of the surface vessel, wherein the node storage container is configured to store a plurality of nodes which are physically disconnected from each other, and a node deployment system supported by the deck of the surface vessel and controllable by the control system, wherein the node deployment system is configured to retrieve the nodes from the node storage container and deploy the nodes to a subsea location.

Classes IPC  ?

• B63B 27/22 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des convoyeurs, p.ex. à courroie sans fin ou du type à vis
• B63G 8/00 - Navires submersibles, p.ex. sous-marins
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

An offshore node deployment system includes a control system, a surface vessel including a deck, and a propulsion system in signal communication with the control system, a node storage container supported by the deck of the surface vessel, wherein the node storage container is configured to store a plurality of nodes which are physically disconnected from each other, and a node deployment system supported by the deck of the surface vessel and controllable by the control system, wherein the node deployment system is configured to retrieve the nodes from the node storage container and deploy the nodes to a subsea location.

Classes IPC  ?

• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
• B63B 27/22 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers des convoyeurs, p.ex. à courroie sans fin ou du type à vis
• B63G 8/00 - Navires submersibles, p.ex. sous-marins

Abrégé

A method of identifying events includes obtaining an acoustic signal from a sensor, determining one or more frequency domain features from the acoustic signal, providing the one or more frequency domain features as inputs to a plurality of event detection models, and determining the presence of one or more events using the plurality of event detection models. The one or more frequency domain features are obtained across a frequency range of the acoustic signal, and at least two of the plurality of event detection models are different.

Classes IPC  ?

• G06F 30/28 - Optimisation, vérification ou simulation de l’objet conçu utilisant la dynamique des fluides, p.ex. les équations de Navier-Stokes ou la dynamique des fluides numérique [DFN]
• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• G01V 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

Systems and methods are disclosed for managing skin in a subterranean wellbore. In an embodiment, the method includes oscillating a drawdown pressure of the subterranean wellbore in a predetermined pattern that comprises a plurality of alternating drawdown pressure increases and drawdown pressure decreases. The drawdown pressure increases of the predetermined pattern comprise increasing the drawdown pressure at a first rate, and the drawdown pressure decreases of the predetermined pattern comprise decreasing the drawdown pressure at a second rate that is different from the first rate.

Classes IPC  ?

• E21B 43/12 - Procédés ou appareils pour commander l'écoulement du fluide extrait vers ou dans les puits
• E21B 43/14 - Extraction d'un puits à horizons multiples

Abrégé

A method for facilitating the management of one or more energy production or processing facilities includes receiving an alert corresponding to an operational anomaly associated with the process equipment, interrogating a data structure linking together and organizing a plurality of distinct data sources, selecting a subset of data sources from the plurality of data sources identified as associated with a potential cause of the alert based on the interrogation of the data structure, statistically analyzing data sourced from the selected subset of data sources, identifying the potential cause of the alert based on the statistical analysis, and recommending a corrective action to resolve the identified potential cause of the alert using the plurality of distinct data sources.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique

Abrégé

Example seismic sensors and methods relating thereto are disclosed. In an embodiment, the seismic sensor includes an outer housing and a proof mass disposed in the inner cavity of the outer housing. In addition, the seismic sensor includes a first biasing member positioned in the inner cavity between the proof mass and an outer housing upper end that is configured to flex in response to axial movement of the outer housing relative to the proof mass. Further, the seismic sensor includes a second biasing member positioned in the inner cavity between the first biasing member and the outer housing upper end. Still further, the seismic sensor includes a sensor element positioned in the inner cavity between the proof mass and an outer housing lower end that is configured to generate a potential in response to movement of the outer housing relative to the proof mass.

Classes IPC  ?

• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs

Abrégé

Example sensor assemblies, seismic sensor incorporating the sensor assemblies, and methods relating thereto are disclosed. In an embodiment, the sensor assembly includes an electrically conductive outer housing, and an electrically insulating holder disposed within the outer housing. The holder comprises a recess. In addition, the sensor assembly includes a sensor element disposed within the recess of the holder. The sensor element is electrically insulated from outer housing by the holder.

Classes IPC  ?

• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
• G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes

Abrégé

A method of cementing a wellbore includes injecting into the wellbore a non-aqueous fluid; injecting into the wellbore a cement slurry and a non-ionic surfactant composition after injecting the non-aqueous fluid; and allowing the cement slurry to set, wherein the non-ionic surfactant composition comprises an alkyl end-capped ethoxylated fatty alcohol, a chain extended non-ionic surfactant, or a combination comprising at least one of the foregoing.

Classes IPC  ?

• C09K 8/467 - Compositions de cimentation, p.ex. pour la cimentation des tubes dans les trous de forage; Compositions de bouchage, p.ex. pour tuer des puits contenant des liants inorganiques, p.ex. ciment Portland contenant des additifs pour des utilisations spécifiques
• C09K 8/487 - Additifs régulant les pertes de fluide; Additifs pour réduire ou empêcher la perte de circulation
• E21B 33/138 - Plâtrage de la paroi du trou de forage; Injections dans la formation
• E21B 33/14 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues pour la cimentation des tubes dans les trous de forage ou de sondage
• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues

Abrégé

A desalination system includes a desalination platform, a first skid disposed on a first deck of the desalination platform, the first skid including at least one of a first filtration unit configured to produce a first filtrate stream, and a first permeate unit configured to produce a first permeate stream, a first interconnecting pipework coupled to the first skid, and a first pipework support disposed on the first deck, wherein the first interconnecting pipework is disposed on the first pipework support.

Classes IPC  ?

• B01D 61/58 - Procédés à plusieurs étapes
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/10 - Accessoires; Opérations auxiliaires
• B01D 61/14 - Ultrafiltration; Microfiltration
• B01D 61/18 - Appareils à cet effet
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• E21B 43/40 - Séparation associée à la réinjection de matériaux séparés

Abrégé

A method of identifying inflow locations along a wellbore comprises obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, and identifying, using a plurality of fluid flow models, a presence of at least one of a gas phase inflow, an aqueous phase inflow, or a hydrocarbon liquid phase inflow at one or more fluid flow locations. The acoustic signal comprises acoustic samples across a portion of a depth of the wellbore, and the plurality of frequency domain features are obtained across a plurality of depth intervals within the portion of the depth of the wellbore. Each fluid flow model of the plurality of fluid inflow models uses one or more frequency domain features of the plurality of the frequency domain features, and at least two of the plurality of fluid flow models are different.

Classes IPC  ?

• G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
• G01V 1/50 - Analyse des données
• G01V 1/30 - Analyse
• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
• E21B 47/14 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques
• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• G06F 30/28 - Optimisation, vérification ou simulation de l’objet conçu utilisant la dynamique des fluides, p.ex. les équations de Navier-Stokes ou la dynamique des fluides numérique [DFN]

Abrégé

A monitoring system includes a flow line, an optical fiber coupled to the flow line, and a receiver coupled to an end of the optical fiber. The receiver is configured to detect at least one acoustic signal from the optical fiber. In addition, the monitoring system includes processor unit to detect a flow obstruction within the flow line based on the acoustic signal.

Classes IPC  ?

• E21B 47/095 - Localisation ou détermination de la position d'objets dans les trous de forage ou dans les puits; Identification des parties libres ou bloquées des tubes par détection d'anomalies acoustiques, p.ex. à l'aide de pulsations de pression de boue
• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques

Abrégé

A control system configured to control operation of reverse osmosis (RO) array(s), nanofiltration (NF) array(s) and/or a blending system including a control panel (CP), regulatory controllers (RCs), and a supervisory controller (SC), wherein the SC is in signal communication with the CP, and with the RCs, wherein the SC is configured to: receive user inputs from the CP, and receive inputs from RCs regarding data from sensors, wherein the RCs are in signal communication with the plurality of sensors, wherein the RCs are configured to: receive data from the sensors, provide outputs to and receive permissions from the SC, and instruct devices in response to the received permissions from the SC, and wherein the SC is configured to: monitor trends in the inputs regarding and/or predict outcomes from data received from the RCs and determine the permissions for RCs based on the monitored trends and/or user inputs from the CP.

Classes IPC  ?

• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/12 - Commande ou régulation
• B01F 3/08 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de liquides avec des liquides; Emulsion
• B01F 15/04 - Réalisation de proportions prédéterminées de substances à mélanger

Abrégé

A method of dynamically allocating a total amount of produced water (PW) from a reservoir during enhanced oil recovery (EOR) via a low salinity or softened water EOR flood by receiving measurement data; receiving reservoir configuration information comprising: an EOR injection rate associated with one or more EOR injection zones, a disposal zone injection rate associated with one or more disposal injection zones, and a non-reinjection disposal rate associated with one or more non-reinjection disposal routes; determining a blending rate comprising at least a portion of the PW production rate and at least a portion of the low salinity or softened water injection rate to provide a blended injection fluid; blending at least a portion of the PW with at least a portion of the low salinity or softened water at the blending rate; and dynamically allocating the PW production rate among injection and/or non-reinjection routes.

Classes IPC  ?

• E21B 43/38 - Aménagements pour séparer les matériaux produits par le puits dans le puits
• E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
• E21B 43/20 - Déplacement par l'eau
• G01V 3/38 - Traitement de données, p.ex. pour l'analyse, pour l'interprétation ou pour la correction

Abrégé

A process for use in managing a hydrocarbon production system includes: selecting, from among a plurality of changes proposed to operating parameters of the hydrocarbon production system, the proposed change with the greatest estimated positive change in production; assessing whether the selected change violates an operating constraint; based on said assessment, producing a valid change based on at least the selected change or identifying the selected change as an unusable change, iterating the above steps, the iteration excluding the valid change from the plurality of proposed changes; and implementing at least one valid change, the number of implemented valid changes being less than the number of proposed changes.

Classes IPC  ?

• E21B 41/00 - Matériel ou accessoires non couverts par les groupes
• E21B 43/12 - Procédés ou appareils pour commander l'écoulement du fluide extrait vers ou dans les puits
• G05B 19/04 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique
• G06G 7/48 - Calculateurs analogiques pour des procédés, des systèmes ou des dispositifs spécifiques, p.ex. simulateurs

Abrégé

A predictive system for monitoring fouling of membranes of a desalination or water softening plant includes ultrafiltration (UF) membranes, reverse osmosis (RO) membranes, and/or nanofiltration (NF) membranes. In addition, the system includes one or more UF skids including a plurality of UF units. Each UF unit contains therein a plurality of UF membranes. Further, the system includes one or more RO/NF skids including one or more RO/NF arrays. Each of the one or more RO/NF arrays includes a plurality of RO units, with each RO unit containing therein a plurality of RO membranes, a plurality of NF units, with each NF unit containing therein a plurality of NF membranes, or a combination thereof. Still further, the system includes UF sensors and/or RO/NF sensors. The system also includes a controller comprising a processor in signal communication with the UF sensors and/or the RO/NF sensors.

Classes IPC  ?

• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/12 - Commande ou régulation
• B01D 61/14 - Ultrafiltration; Microfiltration
• B01D 61/22 - Commande ou régulation
• B01D 65/02 - Nettoyage ou stérilisation de membranes
• C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 5/00 - Adoucissement de l'eau; Prévention de l'entartrage; Addition à l'eau d'agents antitartre ou détartrants, p.ex. addition d'agents séquestrants
• B01D 61/58 - Procédés à plusieurs étapes
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement

Abrégé

Spacer-i, is in the range of 0.0001 to 0.1000 of the swept pore volume, PVR, of the layer(s) of reservoir rock. The total injected pore volume of the slugs of aqueous spacer fluid is in the range of 0.9000000 to 0.9999999 of the swept pore volume, PVR, of the layer(s) of reservoir rock. The reservoir rock has a dispersivity, α, in the range of 1 to 30% of the interwell distance between the injection well and production well. The amount of additive delivered to the layer(s) of reservoir rock by the plurality of slugs of aqueous displacement fluid is equal to or greater than a predetermined minimum additive quantity (MAQ).

Classes IPC  ?

• E21B 43/20 - Déplacement par l'eau
• C09K 8/584 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement caractérisées par l'utilisation de tensio-actifs spécifiques
• C09K 8/40 - Compositions d'espacement dites "spacers", p.ex. compositions utilisées pour séparer les masses de forage et de cimentation

Abrégé

An integrated system includes a desalination plant including a reverse osmosis (RO) array to produce an RO permeate blending stream and a nanofiltration (NF) array to produce an NF permeate blending stream. The integrated system also includes a blending system. Further, the integrated system includes a control unit. Still further, the integrated system includes an injection system for one or more injection wells that penetrate an oil-bearing layer of a reservoir. Moreover, the integrated system includes a production facility to separate fluids produced from one or more production wells that penetrate the oil-bearing layer of the reservoir and to deliver a produced water (PW) stream to the blending system. The blending system is configured to blend the RO permeate and NF permeate blending streams with the PW stream to produce a blended low salinity water stream. The control unit is configured to dynamically alter operation of the blending system to adjust amounts of at least one of the RO permeate blending stream and the NF permeate blending stream to maintain a composition of the blended low salinity water stream within a predetermined operating envelope.

Classes IPC  ?

• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/08 - Appareils à cet effet
• B01D 61/12 - Commande ou régulation
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement
• E21B 43/20 - Déplacement par l'eau
• E21B 43/40 - Séparation associée à la réinjection de matériaux séparés
• B01F 23/40 - Mélange, p.ex. dispersion ou émulsion, selon les phases à mélanger Émulsion
• B01F 35/22 - Commande ou régulation
• B01F 35/21 - Mesure
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement
• C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
• B01F 101/49 - Mélange de matières de forage ou d'ingrédients pour les compositions de forage de puits, de terre ou de forages profonds avec des liquides pour obtenir des boues

Abrégé

In some examples, the disclosure provides a method for determining a drift in clock data that is provided by a clock of a seismic sensor. The sensor is exposed to an ambient temperature that varies over time. The method includes obtaining temperature data associated with the ambient temperature as a function of time. The method also includes obtaining the clock data. The method also includes obtaining timestamp data provided by a global navigation satellite system. The method also includes determining drift data which minimizes a difference of a temporal drift in the clock data, based on the timestamp data and the temperature data. The method also includes outputting corrective data based on the determined drift data.

Classes IPC  ?

• G01V 1/24 - Enregistrement des données sismiques
• G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes

Abrégé

In some examples, the disclosure provides a method for deploying a plurality N of seismic sensors, wherein each seismic sensor is adapted to measure seismic energy with at least one gain, within a survey area, the method comprising: obtaining a plurality M of gains from which the at least one gain may be selected; configuring the plurality N of seismic sensors such that, for each given gain of the obtained plurality M of gains, at least N/M seismic sensors are adapted to measure the seismic energy with at least one corresponding gain; and deploying the plurality N of configured seismic sensors on the survey area.

Classes IPC  ?

• G01V 1/20 - Aménagements d'éléments récepteurs, p.ex. oscillogrammes géophoniques
• G01V 1/24 - Enregistrement des données sismiques

Abrégé

An integrated system comprising a desalination plant comprising a reverse osmosis (RO) array configured to produce an RO permeate blending stream, a blending system comprising a flow line for a fines stabilizing additive blending stream and configured to blend the RO permeate blending stream with the fines stabilizing additive blending stream to produce a blended low salinity water stream having a salinity of less than or equal to 5,000, 4,000, 3,000, 2,000, 1,000, 500, 400, or 300 ppm and a molar ratio of divalent cations to monovalent cations of greater than about 0.2, 0.3, or 0.4, a control unit configured to control operation of the blending system, and an injection system for one or more injection wells, wherein the one or more injection wells penetrate an oil-bearing layer of a reservoir. A method is also provided.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/12 - Commande ou régulation
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement
• C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières

Abrégé

In some examples, the disclosure provides a method for determining a drift in clock data that is provided by a clock of a seismic sensor. The sensor is exposed to an ambient temperature that varies over time. The method includes obtaining temperature data associated with the ambient temperature as a function of time. The method also includes obtaining the clock data. The method also includes obtaining timestamp data provided by a global navigation satellite system. The method also includes determining drift data which minimizes a difference of a temporal drift in the clock data, based on the timestamp data and the temperature data. The method also includes outputting corrective data based on the determined drift data.

Classes IPC  ?

• G01V 1/24 - Enregistrement des données sismiques
• G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes

Abrégé

In some examples, the disclosure provides a method for deploying a plurality N of seismic sensors, wherein each seismic sensor is adapted to measure seismic energy with at least one gain, within a survey area, the method comprising: obtaining a plurality M of gains from which the at least one gain may be selected; configuring the plurality N of seismic sensors such that, for each given gain of the obtained plurality M of gains, at least N/M seismic sensors are adapted to measure the seismic energy with at least one corresponding gain; and deploying the plurality N of configured seismic sensors on the survey area.

Classes IPC  ?

• G01V 1/20 - Aménagements d'éléments récepteurs, p.ex. oscillogrammes géophoniques
• G01V 1/24 - Enregistrement des données sismiques

Abrégé

An integrated system comprising a desalination plant comprising a reverse osmosis (RO) array configured to produce an RO permeate blending stream, a blending system comprising a flow line for a fines stabilizing additive blending stream and configured to blend the RO permeate blending stream with the fines stabilizing additive blending stream to produce a blended low salinity water stream having a salinity of less than or equal to 5,000, 4,000, 3,000, 2,000, 1,000, 500, 400, or 300 ppm and a molar ratio of divalent cations to monovalent cations of greater than about 0.2, 0.3, or 0.4, a control unit configured to control operation of the blending system, and an injection system for one or more injection wells, wherein the one or more injection wells penetrate an oil-bearing layer of a reservoir. A method is also provided.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/12 - Commande ou régulation

Abrégé

A method of calibrating a distributed acoustic sensor (DAS) system includes obtaining a backscattered optical signal from a fiber optic cable disposed within a wellbore, determining an origination point within the backscattered optical signal, determining a bottom point within the backscattered optical signal, correlating the origination point and the bottom point with physical depth information for the wellbore, and determining at least a depth calibration for the backscattered optical signal using the correlating. The backscattered optical signal is representative of an acoustic or thermal signal along the fiber optic cable. The origination point identifies a first location at an upper point of the fiber optic cable within the backscattered optical signal, and the bottom point identifies a second location at a lower point of the fiber optic cable within the wellbore. The depth calibration correlates a sensed depth within the backscattered optical signal with a physical depth within the wellbore.

Classes IPC  ?

• E21B 47/04 - Mesure de la profondeur ou du niveau du liquide
• E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage

Abrégé

A method of characterizing an inflow into a wellbore comprises obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, identifying at least one of a gas phase flow, an aqueous phase flow, or a hydrocarbon liquid phase flow using the plurality of the frequency domain features, and classifying a flow rate of the at least one of the gas phase flow, the aqueous phase flow, or the hydrocarbon liquid phase flow using the plurality of frequency domain features. The acoustic signal comprises acoustic samples across a portion of a depth of the wellbore.

Classes IPC  ?

• G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
• G01P 5/24 - Mesure de la vitesse des fluides, p.ex. d'un courant atmosphérique; Mesure de la vitesse de corps, p.ex. navires, aéronefs, par rapport à des fluides en mesurant l'influence directe du courant de fluide sur les propriétés d'une onde acoustique de détection
• G01V 1/50 - Analyse des données

Abrégé

Systems and methods are disclosed for managing skin in a subterranean wellbore. In an embodiment, the method includes oscillating a drawdown pressure of the subterranean wellbore in a predetermined pattern that comprises a plurality of alternating drawdown pressure increases and drawdown pressure decreases. The drawdown pressure increases of the predetermined pattern comprise increasing the drawdown pressure at a first rate, and the drawdown pressure decreases of the predetermined pattern comprise decreasing the drawdown pressure at a second rate that is different from the first rate.

Classes IPC  ?

• E21B 43/00 - Procédés ou dispositifs pour l'extraction de pétrole, de gaz, d'eau ou de matériaux solubles ou fusibles ou d'une suspension de matières minérales à partir de puits

Abrégé

A method of abandoning a wellbore can include obtaining a first sample data set within a wellbore, wherein the first sample data set is a sample of an acoustic signal originating within the wellbore; determining a plurality of frequency domain features of the first sample data set; identifying a fluid flow location within the wellbore using the first plurality of frequency domain features; setting a barrier (130A, 131A, 130B, 131B, 130C) at or above the fluid flow location; obtaining a second sample data set above the barrier, wherein the second sample data set is a sample of an acoustic signal originating within the wellbore above the barrier; determining a second plurality of frequency domain features of the second sample data set; and identifying that a fluid flow rate or flow mechanism at the fluid flow location has been reduced or eliminated and/or identifying another fluid flow location using the second plurality of frequency domain features.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide

Abrégé

Example seismic sensors and methods relating thereto are disclosed. In an embodiment, the seismic sensor includes an outer housing and a proof mass disposed in the inner cavity of the outer housing. In addition, the seismic sensor includes a first biasing member positioned in the inner cavity between the proof mass and an outer housing upper end that is configured to flex in response to axial movement of the outer housing relative to the proof mass. Further, the seismic sensor includes a second biasing member positioned in the inner cavity between the first biasing member and the outer housing upper end. Still further, the seismic sensor includes a sensor element positioned in the inner cavity between the proof mass and an outer housing lower end that is configured to generate a potential in response to movement of the outer housing relative to the proof mass.

Classes IPC  ?

• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone

Abrégé

Example sensor assemblies, seismic sensor incorporating the sensor assemblies, and methods relating thereto are disclosed. In an embodiment, the sensor assembly includes an electrically conductive outer housing, and an electrically insulating holder disposed within the outer housing. The holder comprises a recess. In addition, the sensor assembly includes a sensor element disposed within the recess of the holder. The sensor element is electrically insulated from outer housing by the holder.

Classes IPC  ?

• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone

Abrégé

A method of cementing a wellbore includes injecting into the wellbore a non-aqueous fluid; injecting into the wellbore a cement slurry and a non-ionic surfactant composition after injecting the non-aqueous fluid; and allowing the cement slurry to set, wherein the non-ionic surfactant composition comprises an alkyl end-capped ethoxylated fatty alcohol, a chain extended non-ionic surfactant, or a combination comprising at least one of the foregoing.

Classes IPC  ?

• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
• C09K 8/487 - Additifs régulant les pertes de fluide; Additifs pour réduire ou empêcher la perte de circulation
• E21B 33/138 - Plâtrage de la paroi du trou de forage; Injections dans la formation
• E21B 33/14 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues pour la cimentation des tubes dans les trous de forage ou de sondage
• C09K 8/467 - Compositions de cimentation, p.ex. pour la cimentation des tubes dans les trous de forage; Compositions de bouchage, p.ex. pour tuer des puits contenant des liants inorganiques, p.ex. ciment Portland contenant des additifs pour des utilisations spécifiques

Abrégé

A method of cementing a wellbore includes injecting into the wellbore a non-aqueous fluid; injecting into the wellbore a cement slurry and a non-ionic surfactant composition after injecting the non-aqueous fluid; and allowing the cement slurry to set, wherein the non-ionic surfactant composition comprises an alkyl end-capped ethoxylated fatty alcohol, a chain extended non-ionic surfactant, or a combination comprising at least one of the foregoing.

Classes IPC  ?

• E21B 33/138 - Plâtrage de la paroi du trou de forage; Injections dans la formation
• E21B 33/14 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues pour la cimentation des tubes dans les trous de forage ou de sondage
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• C09K 8/44 - Compositions de cimentation, p.ex. pour la cimentation des tubes dans les trous de forage; Compositions de bouchage, p.ex. pour tuer des puits contenant uniquement des liants organiques

Abrégé

A monitoring system (100), comprising a flow line (114) comprising at least one bend (120), an optical fiber (116) coupled to an exterior of the flow line, wherein the optical fiber is wrapped around at least a portion of the flow line, and a receiver (164) coupled to an end of the optical fiber, wherein the receiver is configured to detect at least one acoustic signal from the optical fiber.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage
• E21B 41/00 - Matériel ou accessoires non couverts par les groupes

Abrégé

A system for processing acoustic data to identify an event includes a receiver unit including a processor and a memory. The receiver unit is configured to receive a signal from a sensor disposed along a sensor path or across a sensor area. A processing application is stored in the memory. The processing application, when executed on the processor, configures the processor to: receive the signal from the sensor, where the signal includes an indication of an acoustic signal received at one or more lengths along the sensor path or across a portion of the sensor area and the signal is indicative of the acoustic signal across a frequency spectrum; determine a plurality of frequency domain features of the signal across the frequency spectrum; and generate an output comprising the plurality of frequency domain features.

Classes IPC  ?

• G01N 29/44 - Traitement du signal de réponse détecté
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
• G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
• G01N 29/46 - Traitement du signal de réponse détecté par analyse spectrale, p.ex. par analyse de Fourier
• G01W 1/00 - Météorologie

Abrégé

a desalination plant including a reverse osmosis (RO) array to produce an RO permeate blending stream and a nanofiltration (NF) array to produce an NF permeate blending stream. an injection system for an injection well that penetrates an oil-bearing layer of a reservoir. The blending system is to blend the RO permeate blending stream and the NF permeate blending stream to produce a blended injection water stream. The control unit is to dynamically alter operation of the blending system to adjust amounts of at least one of the RO permeate blending stream and the NF permeate blending stream to alter the composition of the blended injection water stream from an initial composition to a target composition.

Classes IPC  ?

• E21B 21/06 - Dispositions pour traiter les fluides de forage à l'extérieur du trou de forage
• E21B 43/20 - Déplacement par l'eau
• E21B 49/00 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/12 - Commande ou régulation
• B01D 61/58 - Procédés à plusieurs étapes
• B01D 61/02 - Osmose inverse; Hyperfiltration
• C09K 8/02 - Compositions pour le forage des puits
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement

Abrégé

A method for analysing a crude oil to determine the amount of organic acid compounds contained in the crude oil includes extracting the organic acid compounds from a sample of crude oil to form an extract and determining the amount of the extracted organic acids In addition, the method includes dissolving the extract in a polar solvent to form a solution of the extracted organic acid compounds Further, the method includes introducing a sample of the solution of the extracted organic acid to an apparatus including a reversed phase liquid chromatography (LC) column and a mass spectrometer (MS) arranged in series. The reversed phase LC column contains a hydrophobic sorbent and the mobile phase for the LC column includes a polar organic solvent. Still further, the method includes separating the organic acid compounds in the LC column of the LC-MS apparatus and continuously passing the separated organic acid compounds from the LC column to the MS of the LC-MS apparatus to ionize the organic acid compounds and to obtain a chromatogram with mass spectral data over time for the ionized organic acid compounds. Moreover, the method includes determining the area(s) under the peak(s) in an extracted ion chromatogram derived from the mass spectral data assigned to one or more organic acid compounds. The method also includes determining the amount of the organic acid compound(s) in the sample by comparing the area under the peak(s) assigned to the organic acid compound(s) with the area under a peak in an extracted ion chromatogram assigned to a specific amount of a standard organic acid compound. In addition, the method includes extrapolating from the amount of the organic acid compound(s) in the sample to provide the total amount of the organic acid compound(s) in the extract.

Classes IPC  ?

• G01N 30/72 - Spectromètres de masse
• G01N 33/28 - Huiles
• G01N 1/38 - Dilution, dispersion ou mélange des échantillons
• B01J 20/281 - Absorbants ou adsorbants spécialement adaptés pour la chromatographie préparative, analytique ou de recherche
• G01N 30/86 - Analyse des signaux
• G01N 30/00 - Recherche ou analyse de matériaux par séparation en constituants utilisant l'adsorption, l'absorption ou des phénomènes similaires ou utilisant l'échange d'ions, p.ex. la chromatographie

Abrégé

A method includes producing a first blended low salinity injection water for injection into at least one injection well that penetrates a first region of an oil-bearing reservoir and producing a second blended low salinity injection water for injection into at least one injection well that penetrates a second region of an oil-bearing reservoir. The reservoir rock of the first and second regions has first and second rock compositions, respectively, that present different risks of formation damage. The first and second blended low salinity injection waters comprise variable amounts of nanofiltration permeate and reverse osmosis permeate. The compositions of the first and second blended low salinity injection waters are maintained within first and second predetermined operating envelopes, respectively, that balance improving enhanced oil recovery from the first and second regions while reducing formation damage upon injecting the first and second blended low salinity injection waters into the oil-bearing reservoir.

Classes IPC  ?

• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/08 - Appareils à cet effet
• B01D 61/12 - Commande ou régulation
• B01F 23/40 - Mélange, p.ex. dispersion ou émulsion, selon les phases à mélanger Émulsion
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p.ex. par addition d'oligo-éléments
• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement
• E21B 43/20 - Déplacement par l'eau
• B01F 35/82 - Formation d'un rapport prédéterminé des substances à mélanger en ajoutant une matière à mélanger à un mélange en réponse à une caractéristique détectée, p. ex. la densité, la radioactivité, la puissance consommée ou la couleur
• B01F 101/49 - Mélange de matières de forage ou d'ingrédients pour les compositions de forage de puits, de terre ou de forages profonds avec des liquides pour obtenir des boues
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement
• C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières

Abrégé

A method of detecting sand ingress within a wellbore includes obtaining a sample data set, determining a plurality of frequency domain features of the sample data set over a plurality of depth ranges, determining a presence of sand ingress at a first depth range of the plurality of depth ranges within the wellbore based on determining that the plurality of frequency domain features over the first depth range match a sand ingress signature, and determining a presence of sand migration along a second depth range of the plurality of depths within the wellbore based on determining that the plurality of frequency domain features over the second depth range match a sand migration signature. The sample data set is a sample of an acoustic signal originating within a wellbore including a fluid. The sample data set is representative of the acoustic signal across a frequency spectrum.

Classes IPC  ?

• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 43/12 - Procédés ou appareils pour commander l'écoulement du fluide extrait vers ou dans les puits
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes
• G01H 3/04 - Fréquence
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques

Abrégé

A method of detecting an event by: obtaining a first sample data set; determining a frequency domain feature(s) of the first sample data set over a first time period; determining a first threshold for the a frequency domain feature(s) using the first sample data set; determining that the frequency domain feature(s) matches the first threshold; determining the presence of an event during the first time period based on determining that the frequency domain feature(s) matches the first threshold; obtaining a second sample data set; determining a frequency domain feature(s) of the second sample data set over a second time period; determining a second threshold for the frequency domain feature(s) using the second sample data set; determining that the frequency domain feature(s) matches the second threshold; and determining the presence of the event during the second time period based on determining that the frequency domain feature(s) matches the second threshold.

Classes IPC  ?

• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
• G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
• G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes

Abrégé

A method of detecting an event by: obtaining a first sample data set; determining a frequency domain feature(s) of the first sample data set over a first time period; determining a first threshold for the a frequency domain feature(s) using the first sample data set; determining that the frequency domain feature(s) matches the first threshold; determining the presence of an event during the first time period based on determining that the frequency domain feature(s) matches the first threshold; obtaining a second sample data set; determining a frequency domain feature(s) of the second sample data set over a second time period; determining a second threshold for the frequency domain feature(s) using the second sample data set; determining that the frequency domain feature(s) matches the second threshold; and determining the presence of the event during the second time period based on determining that the frequency domain feature(s) matches the second threshold.

Classes IPC  ?

• G01H 3/04 - Fréquence
• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques

Abrégé

A scale inhibition fluid for use in a wellbore comprises a layered double hydroxide (LDH) having a scale inhibitor (SI) intercalated between positively-charged layers thereof. Also disclosed is a scale treatment fluid comprising such an LDH and SI and methods of making and using same. The material can be formed prior to use in a wellbore, formed during a treatment, formed within the wellbore, or the LDH can be recharged within a wellbore by injecting a SI after the material has been in place within the wellbore, or any combination thereof.

Classes IPC  ?

• C09K 8/528 - Compositions pour éviter, limiter ou éliminer les dépôts, p.ex. pour le nettoyage les dépôts inorganiques, p.ex. sulfates ou carbonates
• C09K 8/536 - Compositions pour éviter, limiter ou éliminer les dépôts, p.ex. pour le nettoyage caractérisées par leur forme ou par la forme de leurs composants, p.ex. matériaux encapsulés
• C01F 7/00 - Composés de l'aluminium

Abrégé

A method of detecting sand inflow into a wellbore is disclosed. The method can include obtaining a sample data set, detecting a broadband signal within the sample data set, comparing the broadband signal with a signal reference, determining that the broadband signal meets or exceeds the signal reference, and determining the presence of sand inflow into the wellbore based on determining that the broadband signal meets or exceeds the signal reference. The sample data set can be a sample of an acoustic signal originating within a wellbore including a fluid, and the broadband signal at least includes a portion of the sample data set at frequencies above 0.5 kHz.

Classes IPC  ?

• G01H 3/04 - Fréquence
• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 49/00 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
• G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
• G01V 1/50 - Analyse des données
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
• E21B 34/06 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits
• E21B 43/14 - Extraction d'un puits à horizons multiples

Abrégé

A method of identifying inflow locations along a wellbore includes obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, and identifying, using a plurality of fluid flow models, a presence of at least one of a gas phase inflow, an aqueous phase inflow, or a hydrocarbon liquid phase inflow at one or more fluid flow locations. The acoustic signal includes acoustic samples across a portion of a depth of the wellbore, and the plurality of frequency domain features are obtained across a plurality of depth intervals within the portion of the depth of the wellbore. Each fluid flow model of the plurality of fluid inflow models uses one or more frequency domain features of the plurality of the frequency domain features, and at least two of the plurality of fluid flow models are different.

Classes IPC  ?

• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 47/14 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques
• G01V 1/50 - Analyse des données
• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
• G01V 1/30 - Analyse
• G06F 30/28 - Optimisation, vérification ou simulation de l’objet conçu utilisant la dynamique des fluides, p.ex. les équations de Navier-Stokes ou la dynamique des fluides numérique [DFN]
• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
• G01V 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G06N 7/01 - Modèles graphiques probabilistes, p.ex. réseaux probabilistes

Abrégé

A method of identifying inflow locations along a wellbore comprises obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, and identifying, using a plurality of fluid flow models, a presence of at least one of a gas phase inflow, an aqueous phase inflow, or a hydrocarbon liquid phase inflow at one or more fluid flow locations. The acoustic signal comprises acoustic samples across a portion of a depth of the wellbore, and the plurality of frequency domain features are obtained across a plurality of depth intervals within the portion of the depth of the wellbore. Each fluid flow model of the plurality of fluid inflow models uses one or more frequency domain features of the plurality of the frequency domain features, and at least two of the plurality of fluid flow models are different.

Classes IPC  ?

• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 41/00 - Matériel ou accessoires non couverts par les groupes
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes

Abrégé

A method of identifying events includes obtaining an acoustic signal from a sensor, determining one or more frequency domain features from the acoustic signal, providing the one or more frequency domain features as inputs to a plurality of event detection models, and determining the presence of one or more events using the plurality of event detection models. The one or more frequency domain features are obtained across a frequency range of the acoustic signal, and at least two of the plurality of event detection models are different.

Classes IPC  ?

• G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes
• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• E21B 47/14 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques

Abrégé

A method of identifying inflow locations along a wellbore comprises obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, and identifying, using a plurality of fluid flow models, a presence of at least one of a gas phase inflow, an aqueous phase inflow, or a hydrocarbon liquid phase inflow at one or more fluid flow locations. The acoustic signal comprises acoustic samples across a portion of a depth of the wellbore, and the plurality of frequency domain features are obtained across a plurality of depth intervals within the portion of the depth of the wellbore. Each fluid flow model of the plurality of fluid inflow models uses one or more frequency domain features of the plurality of the frequency domain features, and at least two of the plurality of fluid flow models are different.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes
• E21B 41/00 - Matériel ou accessoires non couverts par les groupes
• E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage

Abrégé

A method of identifying events includes obtaining an acoustic signal from a sensor, determining one or more frequency domain features from the acoustic signal, providing the one or more frequency domain features as inputs to a plurality of event detection models, and determining the presence of one or more events using the plurality of event detection models. The one or more frequency domain features are obtained across a frequency range of the acoustic signal, and at least two of the plurality of event detection models are different.

Classes IPC  ?

• G01V 1/50 - Analyse des données
• G01V 1/28 - Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
• G01V 1/30 - Analyse
• E21B 47/14 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques
• G06N 7/00 - Agencements informatiques fondés sur des modèles mathématiques spécifiques

Abrégé

A method of identifying events includes obtaining an acoustic signal from a sensor, determining one or more frequency domain features from the acoustic signal, providing the one or more frequency domain features as inputs to a plurality of event detection models, and determining the presence of one or more events using the plurality of event detection models. The one or more frequency domain features are obtained across a frequency range of the acoustic signal, and at least two of the plurality of event detection models are different.

Classes IPC  ?

• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 41/00 - Matériel ou accessoires non couverts par les groupes
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes

Abrégé

A desalination system includes a desalination platform, a first skid disposed on a first deck of the desalination platform, the first skid including at least one of a first filtration unit configured to produce a first filtrate stream, and a first permeate unit configured to produce a first permeate stream, a first interconnecting pipework coupled to the first skid, and a first pipework support disposed on the first deck, wherein the first interconnecting pipework is disposed on the first pipework support.

Classes IPC  ?

• E21B 43/20 - Déplacement par l'eau
• B01D 61/02 - Osmose inverse; Hyperfiltration
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• E21B 43/40 - Séparation associée à la réinjection de matériaux séparés

Abrégé

A virtual seismic shot record is generated based at least in part on seismic interferometry of the passive seismic data. Then, a frequency bandwidth of the virtual seismic shot record is determined, wherein the frequency bandwidth comprises a plurality of frequencies. The virtual seismic shot record is transformed into a frequency- dependent seismic shot record based on a first frequency of the plurality of frequencies. Further, a phase shift is applied to the frequency-dependent seismic shot record. A first velocity model is generated from the phase shifted frequency-dependent seismic shot record. A second velocity model may be generated using full-waveform inversion (FWI). One or more depth slices are identified from the second velocity model. A seismic image is generated based on the one or more depth slices for use with seismic exploration above a region of subsurface including a hydrocarbon reservoir and containing structural features conducive to a presence, migration, or accumulation of hydrocarbons.

Classes IPC  ?

• G01V 1/30 - Analyse
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

A desalination system includes a desalination platform, a first skid disposed on a first deck of the desalination platform, the first skid including at least one of a first filtration unit configured to produce a first filtrate stream, and a first permeate unit configured to produce a first permeate stream, a first interconnecting pipework coupled to the first skid, and a first pipework support disposed on the first deck, wherein the first interconnecting pipework is disposed on the first pipework support.

Classes IPC  ?

• E21B 43/20 - Déplacement par l'eau
• E21B 43/40 - Séparation associée à la réinjection de matériaux séparés
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/02 - Osmose inverse; Hyperfiltration

Abrégé

A virtual seismic shot record is generated based at least in part on seismic interferometry of the passive seismic data. Then, a frequency bandwidth of the virtual seismic shot record is determined, wherein the frequency bandwidth comprises a plurality of frequencies. The virtual seismic shot record is transformed into a frequency- dependent seismic shot record based on a first frequency of the plurality of frequencies. Further, a phase shift is applied to the frequency-dependent seismic shot record. A first velocity model is generated from the phase shifted frequency-dependent seismic shot record. A second velocity model may be generated using full-waveform inversion (FWI). One or more depth slices are identified from the second velocity model. A seismic image is generated based on the one or more depth slices for use with seismic exploration above a region of subsurface including a hydrocarbon reservoir and containing structural features conducive to a presence, migration, or accumulation of hydrocarbons.

Classes IPC  ?

• G01V 1/30 - Analyse
• G01V 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau

Abrégé

A virtual seismic shot record is generated based at least in part on seismic interferometry of the passive seismic data. Then, a frequency bandwidth of the virtual seismic shot record is determined, wherein the frequency bandwidth comprises a plurality of frequencies. The virtual seismic shot record is transformed into a frequency-dependent seismic shot record based on a first frequency of the plurality of frequencies. Further, a phase shift is applied to the frequency-dependent seismic shot record. A first velocity model is generated from the phase shifted frequency-dependent seismic shot record. A second velocity model may be generated using full-waveform inversion (FWI). One or more depth slices are identified from the second velocity model. A seismic image is generated based on the one or more depth slices for use with seismic exploration above a region of subsurface including a hydrocarbon reservoir and containing structural features conducive to a presence, migration, or accumulation of hydrocarbons.

Classes IPC  ?

• G01V 1/30 - Analyse
• G01V 1/32 - Transformation d'un mode d'enregistrement en un autre
• G01V 1/34 - Représentation des enregistrements sismiques

Abrégé

A method of detecting a leak event within a wellbore can include inducing a pressure differential within a wellbore comprising a fluid, obtaining a sample data set representative of the acoustic signal across a frequency spectrum while inducing the pressure differential, determining a plurality of frequency domain features of the sample data set, determining a presence of a leak event at one or more depths within the wellbore based on determining that the plurality of frequency domain features match a leak event signature, correlating the leak event with the induced pressure differential, and determining a presence and location of a leak within the wellbore based on the presence of the leak event and the correlating of the leak event with the induced pressure differential.

Classes IPC  ?

• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 47/117 - Détection de fuites, p.ex. du tubage, par test de pression
• G01N 29/11 - Analyse de solides en mesurant l'atténuation des ondes acoustiques
• G01N 29/44 - Traitement du signal de réponse détecté
• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique

Abrégé

A method of detecting sand inflow into a wellbore is disclosed. The method can include obtaining a sample data set, detecting a broadband signal within the sample data set, comparing the broadband signal with a signal reference, determining that the broadband signal meets or exceeds the signal reference, and determining the presence of sand inflow into the wellbore based on determining that the broadband signal meets or exceeds the signal reference. The sample data set can be a sample of an acoustic signal originating within a wellbore comprising a fluid, and the broadband signal at least includes a portion of the sample data set at frequencies above 0.5 kHz.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 49/00 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
• G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
• G01V 1/50 - Analyse des données
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes
• G01H 3/04 - Fréquence
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
• E21B 34/06 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits
• E21B 43/14 - Extraction d'un puits à horizons multiples

Abrégé

A desalination system includes a feed pump having an inlet side and an outlet side. In addition, the system includes a first RO stage having an inlet, RO permeate outlet and RO concentrate outlet. Further, the system includes a second RO stage having an inlet, RO permeate outlet and RO concentrate outlet and an NF stage having an inlet, NF permeate outlet and an NF concentrate outlet. The system also includes a set of conduits adapted to connect: (a) the outlet side of the feed pump to the inlet of the first RO stage; (b) the concentrate outlet of the first RO stage to (i) the inlet of the second RO stage and to the inlet of the NF stage; and (c) the permeate outlet of the first RO stage, the permeate outlet of the second RO stage and the permeate outlet of the NF stage either directly or indirectly to a low salinity water injection line.

Classes IPC  ?

• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/58 - Procédés à plusieurs étapes

Abrégé

A method of detecting an event within a wellbore includes obtaining a sample data set, determining a plurality of frequency domain features of the sample data set, comparing the plurality of frequency domain features with an event signature, determining that the plurality of frequency domain features matches the thresholds, ranges, or both of the event signature, and determining the presence of the event within the wellbore based on determining that the plurality of frequency domain features match the thresholds, ranges, or both of the event signature. The sample data set is a sample of an acoustic signal originating within a wellbore including a fluid. The sample data set is representative of the acoustic signal across a frequency spectrum. The event signature includes a plurality of thresholds, ranges, or both corresponding to the plurality of frequency domain features.

Classes IPC  ?

• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• E21B 49/00 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
• G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
• G01V 1/50 - Analyse des données
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes
• G01H 3/04 - Fréquence
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
• E21B 34/06 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits
• E21B 43/14 - Extraction d'un puits à horizons multiples

Abrégé

A control system configured to control operation of reverse osmosis (RO) array(s), nanofiltration (NF) array(s) and/or a blending system including a control panel (CP), regulatory controllers (RCs), and a supervisory controller (SC), wherein the SC is in signal communication with the CP, and with the RCs, wherein the SC is configured to: receive user inputs from the CP, and receive inputs from RCs regarding data from sensors, wherein the RCs are in signal communication with the plurality of sensors, wherein the RCs are configured to: receive data from the sensors, provide outputs to and receive permissions from the SC, and instruct devices in response to the received permissions from the SC, and wherein the SC is configured to: monitor trends in the inputs regarding and/or predict outcomes from data received from the RCs and determine the permissions for RCs based on the monitored trends and/or user inputs from the CP.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/12 - Commande ou régulation
• E21B 43/20 - Déplacement par l'eau

Abrégé

A predictive system for monitoring fouling of membranes of a desalination or water softening plant comprising ultrafiltration (UF) membranes, reverse osmosis (RO) membranes, and/or nanofiltration (NF) membranes, the system including one or more UF skids comprising a plurality of UF units, each UF unit containing therein a plurality of UF membranes; one or more RO/NF skids comprising one or more RO/NF arrays, wherein each of the one or more RO/NF arrays comprises a plurality of RO units, with each RO unit containing therein a plurality of RO membranes, a plurality of NF units, with each NF unit containing therein a plurality of NF membranes; or a combination thereof; UF sensors and/or RO/NF sensors; and a controller comprising a processor in signal communication with the UF sensors and/or the RO/NF sensors.

Classes IPC  ?

• B01D 61/12 - Commande ou régulation
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/14 - Ultrafiltration; Microfiltration
• B01D 61/22 - Commande ou régulation
• B01D 61/58 - Procédés à plusieurs étapes
• B01D 65/02 - Nettoyage ou stérilisation de membranes
• B01D 65/10 - Test de membranes ou d'appareils à membranes; Détection ou réparation de fuites
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse

Abrégé

A predictive system for monitoring fouling of membranes of a desalination or water softening plant comprising ultrafiltration (UF) membranes, reverse osmosis (RO) membranes, and/or nanofiltration (NF) membranes, the system including one or more UF skids comprising a plurality of UF units, each UF unit containing therein a plurality of UF membranes; one or more RO/NF skids comprising one or more RO/NF arrays, wherein each of the one or more RO/NF arrays comprises a plurality of RO units, with each RO unit containing therein a plurality of RO membranes, a plurality of NF units, with each NF unit containing therein a plurality of NF membranes; or a combination thereof; UF sensors and/or RO/NF sensors; and a controller comprising a processor in signal communication with the UF sensors and/or the RO/NF sensors.

Classes IPC  ?

• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• B01D 61/12 - Commande ou régulation
• B01D 61/22 - Commande ou régulation
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/14 - Ultrafiltration; Microfiltration
• B01D 61/58 - Procédés à plusieurs étapes
• B01D 65/02 - Nettoyage ou stérilisation de membranes
• B01D 65/10 - Test de membranes ou d'appareils à membranes; Détection ou réparation de fuites

Abrégé

A control system configured to control operation of reverse osmosis (RO) array(s), nanofiltration (NF) array(s) and/or a blending system including a control panel (CP), regulatory controllers (RCs), and a supervisory controller (SC), wherein the SC is in signal communication with the CP, and with the RCs, wherein the SC is configured to: receive user inputs from the CP, and receive inputs from RCs regarding data from sensors, wherein the RCs are in signal communication with the plurality of sensors, wherein the RCs are configured to: receive data from the sensors, provide outputs to and receive permissions from the SC, and instruct devices in response to the received permissions from the SC, and wherein the SC is configured to: monitor trends in the inputs regarding and/or predict outcomes from data received from the RCs and determine the permissions for RCs based on the monitored trends and/or user inputs from the CP.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/02 - Osmose inverse; Hyperfiltration
• B01D 61/12 - Commande ou régulation
• E21B 43/20 - Déplacement par l'eau
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement
• C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières

Abrégé

A method of dynamically allocating a total amount of produced water (PW) from a reservoir during enhanced oil recovery (EOR) via a low salinity or softened water EOR floodby receiving measurement data; receiving reservoir configuration information comprising: an EOR injection rate associated with one or more EOR injection zones, a disposal zone injection rate associated with one or more disposal injection zones, and a non-reinjection disposal rate associated with one or more non-reinjection disposal routes; determining a blending rate comprising at least a portion of the PW production rate and at least a portion of the low salinity or softened water injection rate to provide a blended injection fluid; blending at least a portion of the PW with at least a portion of the low salinity or softened water at the blending rate; and dynamically allocating the PW production rate among injection and/or non-reinjection routes.

Classes IPC  ?

• E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
• E21B 43/20 - Déplacement par l'eau
• E21B 43/38 - Aménagements pour séparer les matériaux produits par le puits dans le puits

Abrégé

A method of dynamically allocating a total amount of produced water (PW) from a reservoir during enhanced oil recovery (EOR) via a low salinity or softened water EOR floodby receiving measurement data; receiving reservoir configuration information comprising: an EOR injection rate associated with one or more EOR injection zones, a disposal zone injection rate associated with one or more disposal injection zones, and a non-reinjection disposal rate associated with one or more non-reinjection disposal routes; determining a blending rate comprising at least a portion of the PW production rate and at least a portion of the low salinity or softened water injection rate to provide a blended injection fluid; blending at least a portion of the PW with at least a portion of the low salinity or softened water at the blending rate; and dynamically allocating the PW production rate among injection and/or non-reinjection routes.

Classes IPC  ?

• E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
• E21B 43/20 - Déplacement par l'eau
• E21B 43/38 - Aménagements pour séparer les matériaux produits par le puits dans le puits

Abrégé

Embodiments relate generally to methods for extracting a core (114) from a percussion side wall core bullet (100) for a digital tomographic description and direct numerical simulations. A method for extracting a core (114) from a percussion side wall core bullet (100) for a digital tomographic description and direct numerical simulations includes pushing a free end (112) of a wire (110) of a wire saw (108) through the core (114). The core (114) is positioned within the percussion side wall core bullet (100). In addition, the method includes attaching the free end (112) to a locking mechanism (113) of the wire saw (108). Further, the method includes cutting the core (114) from the percussion side wall core bullet (100). The method also includes removing the core (114) from the percussion side wall core bullet (100).

Classes IPC  ?

• E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p.ex. tubes carottiers, extracteurs de carottes
• B23D 49/00 - Machines à scier ou dispositifs de sciage à lames animées d'un mouvement rectiligne alternatif
• B28D 1/00 - Travail de la pierre ou des matériaux analogues p.ex. briques, béton, non prévu ailleurs; Machines, dispositifs, outils à cet effet
• E21B 49/04 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen de projectiles pénétrant dans la paroi
• E21B 49/06 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage

Abrégé

Embodiments relate generally to methods for extracting a core (114) from a percussion side wall core bullet (100) for a digital tomographic description and direct numerical simulations. A method for extracting a core (114) from a percussion side wall core bullet (100) for a digital tomographic description and direct numerical simulations includes pushing a free end (112) of a wire (110) of a wire saw (108) through the core (114). The core (114) is positioned within the percussion side wall core bullet (100). In addition, the method includes attaching the free end (112) to a locking mechanism (113) of the wire saw (108). Further, the method includes cutting the core (114) from the percussion side wall core bullet (100). The method also includes removing the core (114) from the percussion side wall core bullet (100).

Classes IPC  ?

• E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p.ex. tubes carottiers, extracteurs de carottes
• E21B 49/04 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen de projectiles pénétrant dans la paroi
• E21B 49/06 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage
• B23D 49/00 - Machines à scier ou dispositifs de sciage à lames animées d'un mouvement rectiligne alternatif
• B28D 1/00 - Travail de la pierre ou des matériaux analogues p.ex. briques, béton, non prévu ailleurs; Machines, dispositifs, outils à cet effet

Abrégé

Embodiments relate generally to methods for extracting a core from a percussion side wall core bullet for a digital tomographic description and direct numerical simulations. A method for extracting a core from a percussion side wall core bullet for a digital tomographic description and direct numerical simulations includes pushing a free end of a wire of a wire saw through the core. The core is positioned within the percussion side wall core bullet. In addition, the method includes attaching the free end to a locking mechanism of the wire saw. Further, the method includes cutting the core from the percussion side wall core bullet. The method also includes removing the core from the percussion side wall core bullet.

Classes IPC  ?

• E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p.ex. tubes carottiers, extracteurs de carottes
• G01N 23/046 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux en utilisant la tomographie, p.ex. la tomographie informatisée
• E21B 49/04 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen de projectiles pénétrant dans la paroi

Abrégé

A method for processing seismic data includes receiving, by a seismic data processing system, signals representing seismic data recorded at a remote location. In addition, the method includes receiving, by the seismic data processing system, identification of a sensor via which the signals were acquired. Further, the method includes retrieving, by the seismic data processing system, a sensor transfer function that corresponds to the sensor and relates the motion of the sensor to the signals. The method also includes generating, by the seismic data processing system, based on the sensor transfer function and a reference transfer function, an inverse filter that when applied to the signals changes parameters of the signals to correspond to the reference transfer function. Moreover, the method includes applying, by the seismic data processing system, the inverse filter to the signals to conform the parameters of the signals to the reference transfer function.

Classes IPC  ?

• G01V 1/06 - Dispositifs de mise à feu
• G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes
• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs

Abrégé

A method of operating a filtration unit of a filtration system includes feeding, during filtration, feed water containing suspended particulate material to an inside of each of a plurality of hollow fibres through a first inlet and a second inlet of each hollow fibre while simultaneously removing a filtrate from an outside of each of the hollow fibres through an outlet of a filtration elements. In addition, the method includes feeding, during back-washing, back-wash water to the outside of the hollow fibres through the outlet of the filtration element. Further the method includes discharging, in a first back-wash cycle, back-wash water containing entrained particulate material from the inside of the hollow fibres from one end thereof. Still further, the method includes discharging, in a second back-wash cycle, back-wash water containing entrained particulate material from the inside of the hollow fibres from the other end thereof.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/22 - Commande ou régulation
• B01D 63/02 - Modules à fibres creuses
• B01D 65/02 - Nettoyage ou stérilisation de membranes
• B01D 61/18 - Appareils à cet effet

Abrégé

A method of detecting an event within a wellbore includes obtaining a sample data set, determining a plurality of frequency domain features of the sample data set, comparing the plurality of frequency domain features with an event signature, determining that the plurality of frequency domain features matches the thresholds, ranges, or both of the event signature, and determining the presence of the event within the wellbore based on determining that the plurality of frequency domain features match the thresholds, ranges, or both of the event signature. The sample data set is a sample of an acoustic signal originating within a wellbore including a fluid. The sample data set is representative of the acoustic signal across a frequency spectrum. The event signature includes a plurality of thresholds, ranges, or both corresponding to the plurality of frequency domain features.

Classes IPC  ?

• E21B 49/00 - Test pour déterminer la nature des parois des trous de forage; Essais de couches; Procédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
• G01V 1/50 - Analyse des données
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• G01V 1/00 - Séismologie; Prospection ou détection sismique ou acoustique
• E21B 47/107 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des moyens acoustiques
• G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
• E21B 47/135 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage par énergie électromagnétique, p.ex. gammes de fréquence radio utilisant des ondes lumineuses, p.ex. ondes infrarouges ou ultraviolettes
• G01H 3/04 - Fréquence
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques
• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
• E21B 34/06 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits
• E21B 43/14 - Extraction d'un puits à horizons multiples

Abrégé

A system for processing acoustic data to identify an event comprises a receiver unit comprising a processor (168) and a memory (170), where the receiver unit is configured to receive a signal from a sensor (164) disposed along a sensor path or across a sensor area, wherein a processing application is stored in the memory. The processing application, when executed on the processor, configures the processor to: receive the signal from the sensor (164), where the signal comprises an indication of an acoustic signal received at one or more lengths along the sensor path or across a portion of the sensor area, wherein the signal is indicative of the acoustic signal across a frequency spectrum; determine a plurality of frequency domain features of the signal across the frequency spectrum; and generate an output comprising the plurality of frequency domain features.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide

Abrégé

A system for processing acoustic data to identify an event comprises a receiver unit comprising a processor (168) and a memory (170), where the receiver unit is configured to receive a signal from a sensor (164) disposed along a sensor path or across a sensor area, wherein a processing application is stored in the memory. The processing application, when executed on the processor, configures the processor to: receive the signal from the sensor (164), where the signal comprises an indication of an acoustic signal received at one or more lengths along the sensor path or across a portion of the sensor area, wherein the signal is indicative of the acoustic signal across a frequency spectrum; determine a plurality of frequency domain features of the signal across the frequency spectrum; and generate an output comprising the plurality of frequency domain features.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide

Abrégé

A method for detecting incremental oil production from an oil-bearing reservoir includes taking a baseline sample of the oil and analyzing the baseline sample of oil to establish a baseline compositional signature for the oxygen-containing organic compounds in the oil. In addition, the method includes commencing a low salinity waterflood by injecting a low salinity water into the reservoir from an injection well. Further, the method includes recovering oil from a production well. Still further, the method includes taking post-flood samples of the oil produced from the production well over time. The method also includes analyzing the post-flood samples of oil to establish post-flood compositional signatures for the oxygen-containing organic compounds in the oil. Moreover, the method includes identifying a difference between one or more of the post-flood compositional signatures and the baseline compositional signature that is characteristic of incremental oil released by the low salinity waterflood.

Classes IPC  ?

• E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits
• E21B 43/20 - Déplacement par l'eau
• G01N 33/28 - Huiles
• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement

Abrégé

A seismic sensor includes an outer housing having a central axis, an upper end, a lower end, and an inner cavity. In addition, the seismic sensor includes a proof mass moveably disposed in the inner cavity of the outer housing. The outer housing is configured to move axially relative to the proof mass. Further, the seismic sensor includes a first biasing member disposed in the inner cavity and axially positioned between the proof mass and one of the ends of the outer housing. The first biasing member is configured to flex in response to axial movement of the outer housing relative to the proof mass. The first biasing member comprises a disc including a plurality of circumferentially-spaced slots extending axially therethrough. Still further, the seismic sensor includes a sensor element disposed in the inner cavity and axially positioned between the first biasing member and one of the ends of the outer housing. The sensor element includes a piezoelectric material configured to deflect and generate a potential in response to the axial movement of the outer housing relative to the proof mass and the flexing of the first biasing member.

Classes IPC  ?

• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01P 15/09 - Mesure de l'accélération; Mesure de la décélération; Mesure des chocs, c. à d. d'une variation brusque de l'accélération en ayant recours aux forces d'inertie avec conversion en valeurs électriques ou magnétiques au moyen de capteurs piézo-électriques

Abrégé

A seismic sensor for a seismic survey includes an outer housing having a central axis, a first end, and a second end opposite the first end. The first end comprises a portion made of a clear material configured to transmit light having a frequency in the visible or infrared range of the electromagnetic spectrum. In addition, the seismic sensor includes a proof mass moveably disposed in the outer housing. The proof mass includes a power source. Further, the seismic sensor includes a sensor element disposed in the outer housing and configured to detect the movement of the outer housing relative to the proof mass. Still further, the seismic sensor includes electronic circuitry coupled to the sensor element and the power source. The seismic sensor also includes a light guide assembly having a first end adjacent the clear portion of the first end of the outer housing and a second end adjacent the electronic circuitry. The light guide assembly is configured to transmit light in an axial direction between the first end of the light guide assembly the clear section and to transmit light in a non-axial direction between the second end of the light guide assembly and the electronic circuitry.

Classes IPC  ?

• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p.ex. des moyens optiques

Abrégé

A method includes producing a first blended low salinity injection water for injection into at least one injection well (20) that penetrates a first region (56) of an oil-bearing reservoir and producing a second blended low salinity injection water for injection into at least one injection well (20') that penetrates a second region (56') of an oil- bearing reservoir (22). The reservoir rock of the first and second regions has first and second rock compositions, respectively, that present different risks of formation damage. The first and second blended low salinity injection waters comprise variable amounts of nanofiltration permeate (13) and reverse osmosis permeate (9). The compositions of the first and second blended low salinity injection waters are maintained within first and second predetermined operating envelopes, respectively, that balance improving enhanced oil recovery from the first and second regions (56, 56') while reducing formation damage upon injecting the first and second blended low salinity injection waters into the oil-bearing reservoir (22).

Classes IPC  ?

• E21B 43/20 - Déplacement par l'eau
• E21B 21/06 - Dispositions pour traiter les fluides de forage à l'extérieur du trou de forage
• B01D 61/02 - Osmose inverse; Hyperfiltration
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse

Abrégé

A seismic survey apparatus includes a body having a longitudinal axis, a first end, a second end opposite the first end, and an inner cavity positioned between the first end and the second end. In addition, the seismic survey apparatus includes a proof mass moveably disposed in the inner cavity of the body. The proof mass is configured to move axially relative to the body. Further, the seismic survey apparatus includes a first sensor disposed in the inner cavity. The first sensor comprises a first piezoelectric element configured to detect the axial movement of the proof mass relative to the body. Still further, the seismic survey apparatus includes electronic circuitry coupled to the first piezoelectric element. The electronic circuitry is configured to receive and process an output of the first piezoelectric element. The proof mass comprises a power supply configured to provide electrical power to the electronic circuitry.

Classes IPC  ?

• G01V 1/16 - Séismologie; Prospection ou détection sismique ou acoustique Éléments récepteurs de signaux sismiques; Aménagements ou adaptations des éléments récepteurs
• G01H 11/08 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores par détection des changements dans les propriétés électriques ou magnétiques par des moyens électriques utilisant des dispositifs piézo-électriques
• G01P 15/09 - Mesure de l'accélération; Mesure de la décélération; Mesure des chocs, c. à d. d'une variation brusque de l'accélération en ayant recours aux forces d'inertie avec conversion en valeurs électriques ou magnétiques au moyen de capteurs piézo-électriques
• G01V 1/18 - Eléments récepteurs, p.ex. sismomètre, géophone

Abrégé

A method of detecting sand ingress within a wellbore includes obtaining a sample data set, determining a plurality of frequency domain features of the sample data set over a plurality of depth ranges, determining a presence of sand ingress at a first depth range of the plurality of depth ranges within the wellbore based on determining that the plurality of frequency domain features over the first depth range match a sand ingress signature, and determining a presence of sand migration along a second depth range of the plurality of depths within the wellbore based on determining that the plurality of frequency domain features over the second depth range match a sand migration signature. The sample data set is a sample of an acoustic signal originating within a wellbore comprising a fluid, and wherein the sample data set is representative of the acoustic signal across a frequency spectrum.

Classes IPC  ?

• E21B 43/04 - Réalisation de filtres à graviers
• E21B 43/12 - Procédés ou appareils pour commander l'écoulement du fluide extrait vers ou dans les puits
• E21B 47/00 - Relevés dans les trous de forage ou dans les puits
• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage

Abrégé

A method of detecting sand ingress within a wellbore includes obtaining a sample data set, determining a plurality of frequency domain features of the sample data set over a plurality of depth ranges, determining a presence of sand ingress at a first depth range of the plurality of depth ranges within the wellbore based on determining that the plurality of frequency domain features over the first depth range match a sand ingress signature, and determining a presence of sand migration along a second depth range of the plurality of depths within the wellbore based on determining that the plurality of frequency domain features over the second depth range match a sand migration signature. The sample data set is a sample of an acoustic signal originating within a wellbore comprising a fluid, and wherein the sample data set is representative of the acoustic signal across a frequency spectrum.

Classes IPC  ?

• E21B 43/04 - Réalisation de filtres à graviers
• E21B 43/12 - Procédés ou appareils pour commander l'écoulement du fluide extrait vers ou dans les puits
• E21B 47/00 - Relevés dans les trous de forage ou dans les puits
• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p.ex. pour la diagraphie pendant le forage

Abrégé

A method for analysing a crude oil to determine the amount of organic acid compounds contained in the crude oil comprising: extracting the organic acid compounds from a sample of crude oil to form an extract comprising the organic acid compounds and determining the amount of the extracted organic acids; dissolving the extract in a polar solvent to form a solution of the extracted organic acid compounds; introducing a sample of the solution of the extracted organic acid to an apparatus comprising a reversed phase liquid chromatography (LC) column and a mass spectrometer (MS) arranged in series wherein the reversed phase LC column contains a hydrophobic sorbent and the mobile phase for the LC column comprises a polar organic solvent; separating the organic acid compounds in the LC column of the LC-MS apparatus and continuously passing the separated organic acid compounds from the LC column to the MS of the LC-MS apparatus to ionize the organic acid compounds and to obtain a chromatogram with mass spectral data over time for the ionized organic acid compounds; determining the area(s) under the peak(s) in an extracted ion chromatogram derived from the mass spectral data assigned to one or more organic acid compounds; determining the amount of the organic acid compound(s) in the sample by comparing the area under the peak(s) assigned to the organic acid compound(s) with the area under a peak in an extracted ion chromatogram assigned to a specific amount of a standard organic acid compound; and extrapolating from the amount of the organic acid compound(s) in the sample to provide the total amount of the organic acid compound(s) in the extract.

Classes IPC  ?

• G01N 30/72 - Spectromètres de masse
• G01N 30/86 - Analyse des signaux
• G01N 33/28 - Huiles
• G01N 1/40 - Concentration des échantillons

Abrégé

An integrated system comprising: a desalination plant comprising a reverse osmosis (RO) array to produce an RO permeate blending stream and a nanofiltration (NF) array to produce an NF permeate blending stream; a blending system; a control unit; an injection system for an injection well that penetrates an oil-bearing layer of a reservoir; and wherein the blending system is to blend the RO permeate blending stream and the NF permeate blending stream to produce a blended injection water stream, wherein the control unit is to dynamically alter operation of the blending system to adjust amounts of at least one of the RO permeate blending stream and the NF permeate blending stream to alter the composition of the blended injection water stream from an initial composition to a target composition.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• E21B 43/20 - Déplacement par l'eau

Abrégé

The present invention relates to expandable polymeric microparticles comprising cross-linked copolymer chains having structural units derived from (i) a water-soluble or water-dispersible monomer with a betaine group, (ii) a water-soluble or water-dispersible non- ionic comonomer, and, (iii) a water-soluble or water-dispersible non-labile cross-linking monomer having at least two sites of ethylenic unsaturation wherein the copolymer chains of the polymeric microparticles comprise from 9.5 to 45 mol% of structural units derived from the betaine monomer and from 0.1 to 10 mol% of structural units derived from the non-labile cross-linking monomer; the polymeric microparticles have an unexpanded average particle diameter in the range from 0.05 to 5 µm and wherein the polymeric microparticles expand in size when dispersed in an aqueous fluid at or above a transition temperature.

Classes IPC  ?

• C09K 8/508 - Composés macromoléculaires
• C09K 8/512 - Composés macromoléculaires contenant des agents de réticulation
• C09K 8/516 - Compositions pour le plâtrage des parois de trous de forage, c. à d. compositions pour la consolidation temporaire des parois des trous de forage caractérisées par leur forme ou par la forme de leurs composants, p.ex. matériaux encapsulés
• C09K 8/588 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement caractérisées par l'utilisation de polymères spécifiques

Abrégé

An integrated system comprising: a desalination plant comprising a reverse osmosis (RO) array to produce an RO permeate blending stream and a nanofiltration (NF) array to produce an NF permeate blending stream; a blending system; a control unit; an injection system for one or more injection wells that penetrate an oil-bearing layer of a reservoir; and a production facility to separate fluids produced from one or more production wells that penetrate the oil-bearing layer of the reservoir and to deliver a produced water (PW) stream to the blending system, wherein the blending system is to blend the RO permeate and NF permeate blending streams with the PW stream to produce a blended low salinity water stream, wherein the control unit is to dynamically alter operation of the blending system to adjust amounts of at least one of the RO permeate blending stream and the NF permeate blending stream to maintain a composition of the blended low salinity water stream within a predetermined operating envelope.

Classes IPC  ?

• B01D 61/02 - Osmose inverse; Hyperfiltration
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• G05D 11/00 - Commande du rapport des débits
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement
• C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières

Abrégé

A liquefaction system for removing heat from a process fluid including a plurality of refrigerant systems configured to liquefy at least a portion of the process fluid in a process feed gas line coupled to the plurality of refrigerant systems, and a common end flash system configured to receive process fluid from the plurality of refrigerant systems. A method for liquefying a process fluid by operating a plurality of refrigeration systems in parallel, wherein each refrigeration system receives a portion of the process fluid, transferring heat from each portion of the process fluid with the corresponding refrigeration system, supplying the portions of the process fluid from the refrigeration systems to a common end flash system, and lowering the pressure of the portions of the process fluid with the common end flash system to provide a liquefied process fluid and an end flash gas.

Classes IPC  ?

• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
• F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p.ex. de l'hélium, de l'hydrogène

Abrégé

A liquefaction system for removing heat from a process fluid to condense the process fluid, the liquefaction system including a primary heat exchanger configured to remove heat from the process fluid via heat exchange with one or more refrigerants, a compressor configured to compress the one or more refrigerants, a first secondary heat exchanger configured to remove heat from the one or more refrigerants via heat exchange with ambient air, and a second secondary heat exchanger configured to remove heat from the one or more refrigerants via heat exchange with ambient water.

Classes IPC  ?

• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
• F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p.ex. de l'hélium, de l'hydrogène

Abrégé

A process for use in managing a hydrocarbon production system includes: selecting, from among a plurality of changes proposed to operating parameters of the hydrocarbon production system, the proposed change with the greatest estimated positive change in production; assessing whether the selected change violates an operating constraint; based on said assessment, producing a valid change based on at least the selected change or identifying the selected change as an unusable change, iterating the above steps, the iteration excluding the valid change from the plurality of proposed changes; and implementing at least one valid change, the number of implemented valid changes being less than the number of proposed changes.

Classes IPC  ?

• E21B 43/00 - Procédés ou dispositifs pour l'extraction de pétrole, de gaz, d'eau ou de matériaux solubles ou fusibles ou d'une suspension de matières minérales à partir de puits
• E21B 41/00 - Matériel ou accessoires non couverts par les groupes

Abrégé

A process for reducing the permeability to water of a thief zone of a porous and permeable subterranean petroleum reservoir by injecting a dispersion of polymeric microparticles in an aqueous fluid down a well and into the thief zone, wherein the polymeric microparticles comprise crosslinked copolymer chains having structural units derived from (i) a water-soluble or water- dispersible monomer with a betaine group, (ii) a water-insoluble monomer, and, (iii) a cross- linking monomer having at least two sites of ethylenic unsaturation, and the polymeric microparticles have a transition temperature above the maximum temperature encountered in the well and at or below the maximum temperature encountered in the thief zone and, and the polymeric microparticles expand in size in the thief zone when they encounter a temperature at or greater than the transition temperature so as to reduce the permeability of the thief zone to water.

Classes IPC  ?

• C09K 8/035 - Additifs organiques
• C09K 8/508 - Composés macromoléculaires
• C09K 8/512 - Composés macromoléculaires contenant des agents de réticulation
• C09K 8/516 - Compositions pour le plâtrage des parois de trous de forage, c. à d. compositions pour la consolidation temporaire des parois des trous de forage caractérisées par leur forme ou par la forme de leurs composants, p.ex. matériaux encapsulés
• C09K 8/588 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement caractérisées par l'utilisation de polymères spécifiques
• C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore

Abrégé

A method of detecting a leak event within a wellbore can include inducing a pressure differential within a wellbore comprising a fluid, obtaining a sample data set representative of the acoustic signal across a frequency spectrum while inducing the pressure differential, determining a plurality of frequency domain features of the sample data set, determining a presence of a leak event at one or more depths within the wellbore based on determining that the plurality of frequency domain features match a leak event signature, correlating the leak event with the induced pressure differential, and determining a presence and location of a leak within the wellbore based on the presence of the leak event and the correlating of the leak event with the induced pressure differential.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide

Abrégé

A desalination system comprising: a feed pump having an inlet side and an outlet side; a first RO stage having an inlet, RO permeate outlet and RO concentrate outlet; a second RO stage having an inlet, RO permeate outlet and RO concentrate outlet and an NF stage having an inlet, NF permeate outlet and an NF concentrate outlet; and, a set of conduits adapted to connect: (a) the outlet side of the feed pump to the inlet of the first RO stage; (b) the concentrate outlet of the first RO stage to (i) the inlet of the second RO stage and to the inlet of the NF stage; and (c) the permeate outlet of the first RO stage, the permeate outlet of the second RO stage and the permeate outlet of the NF stage either directly or indirectly to a low salinity water injection line.

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
• B01D 61/02 - Osmose inverse; Hyperfiltration
• C02F 103/08 - Eau de mer, p.ex. pour le dessalement
• B01D 61/08 - Appareils à cet effet

Abrégé

A method of detecting a leak event within a wellbore can include inducing a pressure differential within a wellbore comprising a fluid, obtaining a sample data set representative of the acoustic signal across a frequency spectrum while inducing the pressure differential, determining a plurality of frequency domain features of the sample data set, determining a presence of a leak event at one or more depths within the wellbore based on determining that the plurality of frequency domain features match a leak event signature, correlating the leak event with the induced pressure differential, and determining a presence and location of a leak within the wellbore based on the presence of the leak event and the correlating of the leak event with the induced pressure differential.

Classes IPC  ?

• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide

Abrégé

A method for recovering crude oil from a reservoir comprising injecting into an oil-bearing reservoir alternating slugs of an aqueous displacement fluid comprising an aqueous solution of zinc chloride or zinc bromide and of an aqueous spacer fluid characterized in that: a) the pH of each of the slugs of aqueous displacement fluid is less than 5.5 and the pH of each of the slugs of aqueous spacer fluid is less than 8.5; b) the number of injected slugs of aqueous displacement fluid, n, is in the range of 15 to 1000 per swept pore volume, PVR; c) the injected pore volume of each individual slug, PVSlug-i, of aqueous displacement fluid is in the range of 10-12 to 10-2 of the PVR; d) the total injected pore volume of the slugs of aqueous displacement fluid is in the range of 10-8 to 10-1 of the PVR; e) the injected pore volume of each individual slug of aqueous spacer fluid, PVSpacer-i, is in the range of 0.0001 to 0.1000 of the PVR; f) the total injected pore volume of the slugs of aqueous spacer fluid is in the range of 0.9000000 to 0.9999999 of the PVR; g) the reservoir rock has a dispersivity, α, in the range of 1 to 30; and 20 h) the quantity of zinc delivered to the reservoir by the plurality of slugs of aqueous displacement fluid is equal to or greater than a predetermined minimum quantity (MQ).

Classes IPC  ?

• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement
• E21B 43/00 - Procédés ou dispositifs pour l'extraction de pétrole, de gaz, d'eau ou de matériaux solubles ou fusibles ou d'une suspension de matières minérales à partir de puits

Abrégé

A method includes receiving data indicative of outputs of first and second seismic sensors. The outputs include components corresponding to the detection by the first and second seismic sensors of first and second seismic signals. In addition, the method includes identifying, relative to a first clock in the first seismic sensor, a first time associated with a time of arrival of the first seismic signal at the first seismic sensor, and a second time associated with a time of arrival of the second seismic signal at the first seismic sensor. Further, the method includes identifying, relative to a second clock in the second seismic sensor, a third time associated with a time of arrival of the first seismic signal at the second seismic sensor, and a fourth time associated with a time of arrival of the second seismic signal at the second seismic sensor. Still further, the method includes determining an offset of the first clock relative to the second clock using the first, second, third and fourth times.

Classes IPC  ?

• G01V 1/26 - Dispositifs d'émission de signaux de référence, p.ex. indiquant le moment de tirer un coup de mine
• G01V 1/30 - Analyse

Abrégé

A method for recovering crude oil from a reservoir comprising at least one layer of reservoir rock having crude oil and a formation water within the pore space thereof wherein the layer(s) of reservoir rock is penetrated by at least one injection well and at least one production well, the method comprising: injecting into the layer(s) of reservoir rock from the injection well, alternating slugs of an aqueous displacement fluid comprising a concentrated solution of a water-soluble additive in an aqueous solvent and of an aqueous spacer fluid characterized in that: (a) the number of injected slugs of aqueous displacement fluid, n, is in the range of 15 to 1000 per swept pore volume, PVR, of the layer(s) of reservoir rock; (b) the injected pore volume of each individual slug, PVSlug-i, of aqueous displacement fluid is in the range of 10-12 to 10-2 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (c) the total injected pore volume of the slugs of aqueous displacement fluid is in the range of 10-8 to 10-1 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (d) the injected pore volume of each individual slug of aqueous spacer fluid, PVSpacer-i, is in the range of 0.0001 to 0.1000 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (e) the total injected pore volume of the slugs of aqueous spacer fluid is in the range of 0.9000000 to 0.9999999 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (f) the reservoir rock has a dispersivity, a, in the range of 1 to 30% of the interwell distance between the injection well and production well; (g) the amount of additive delivered to the layer(s) of reservoir rock by the plurality of slugs of aqueous displacement fluid is equal to or greater than a predetermined minimum additive quantity (MAQ).

Classes IPC  ?

• E21B 43/20 - Déplacement par l'eau
• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement

Abrégé

A method for recovering crude oil from a reservoir comprising at least one layer of reservoir rock having crude oil and a formation water within the pore space thereof wherein the layer(s) of reservoir rock is penetrated by at least one injection well and at least one production well, the method comprising: injecting into the layer(s) of reservoir rock from the injection well, alternating slugs of an aqueous displacement fluid comprising a concentrated solution of a water-soluble additive in an aqueous solvent and of an aqueous spacer fluid characterized in that: (a) the number of injected slugs of aqueous displacement fluid, n, is in the range of 15 to 1000 per swept pore volume, PVR, of the layer(s) of reservoir rock; (b) the injected pore volume of each individual slug, PVSlug-i, of aqueous displacement fluid is in the range of 10-12 to 10-2 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (c) the total injected pore volume of the slugs of aqueous displacement fluid is in the range of 10-8 to 10-1 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (d) the injected pore volume of each individual slug of aqueous spacer fluid, PVSpacer-i, is in the range of 0.0001 to 0.1000 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (e) the total injected pore volume of the slugs of aqueous spacer fluid is in the range of 0.9000000 to 0.9999999 of the swept pore volume, PVR, of the layer(s) of reservoir rock; (f) the reservoir rock has a dispersivity, α, in the range of 1 to 30% of the interwell distance between the injection well and production well; (g) the amount of additive delivered to the layer(s) of reservoir rock by the plurality of slugs of aqueous displacement fluid is equal to or greater than a predetermined minimum additive quantity (MAQ).

Classes IPC  ?

• E21B 43/20 - Déplacement par l'eau
• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c. à d. pour améliorer la mobilité de l'huile, p.ex. fluides de déplacement

Abrégé

Methods of drilling earth formations may involve removing a portion of an underlying earth formation utilizing cutting elements of an earth-boring drill bit. A rotational speed of the drill string may be sensed utilizing a first sensor. A rate of penetration of the drill string during advancement of the earth-boring drill bit may be sensed utilizing a second sensor. An instantaneous average depth of cut of cutting elements of the earth-boring drill bit may be determined utilizing a control unit to calculate the instantaneous average depth of cut based on a sensed rotational speed of the drill string and a sensed speed of advancement of the drill string. The weight on the earth-boring drill bit may be increased utilizing the drawworks when the instantaneous average depth of cut is less than the predetermined minimum depth of cut.

Classes IPC  ?

• E21B 44/00 - Systèmes de commande automatique spécialement adaptés aux opérations de forage, c. à d. systèmes à fonctionnement autonome ayant pour rôle d'exécuter ou de modifier une opération de forage sans l'intervention d'un opérateur humain, p.ex. systèmes de ; Systèmes spécialement adaptés à la surveillance de plusieurs variables ou conditions de forage
• E21B 10/00 - Trépans
• E21B 41/00 - Matériel ou accessoires non couverts par les groupes

Abrégé

Methods of drilling earth formations may involve removing a portion of an underlying earth formation utilizing cutting elements of an earth-boring drill bit. A rotational speed of the drill string may be sensed utilizing a first sensor. A rate of penetration of the drill string during advancement of the earth-boring drill bit may be sensed utilizing a second sensor. An instantaneous average depth of cut of cutting elements of the earth-boring drill bit may be determined utilizing a control unit to calculate the instantaneous average depth of cut based on a sensed rotational speed of the drill string and a sensed speed of advancement of the drill string. The weight on the earth-boring drill bit may be increased utilizing the drawworks when the instantaneous average depth of cut is less than the predetermined minimum depth of cut.

Classes IPC  ?

• E21B 19/00 - Manipulation de tiges, tubages, tubes ou autre objets analogues à l'extérieur du trou de forage, p.ex. dans la tour de forage; Appareils pour faire avancer les tiges ou les câbles
• E21B 44/00 - Systèmes de commande automatique spécialement adaptés aux opérations de forage, c. à d. systèmes à fonctionnement autonome ayant pour rôle d'exécuter ou de modifier une opération de forage sans l'intervention d'un opérateur humain, p.ex. systèmes de ; Systèmes spécialement adaptés à la surveillance de plusieurs variables ou conditions de forage
• E21B 45/00 - Mesure du temps de forage ou de la vitesse de pénétration
• E21B 47/04 - Mesure de la profondeur ou du niveau du liquide