A completion system includes a pipeline fitting; a plug body sized for the fitting; a set of blades adapted for securing the plug body within the fitting, the blades having a retracted position and an extended position; a circumferential groove adapted to receive the set blades when in the extended position; and a control bar adapted for use with the plug body. The completion system of this disclosure further includes a sensor and the set of blades is adapted to trigger the sensor when the blades are a properly fully extended to a locking position in the circumferential groove, indicating the plug body is in a properly locked position, and to not trigger the sensor when the blades are not fully extended into the circumferential groove to their proper depth. In some embodiments, the sensor indicates a closed electrical circuit. In other embodiments, the sensor indicates a magnetic flux.
A gripper assembly for a pipeline plug includes an actuator plate that includes at least two actuator wedges, a bowl that includes at least two bowl wedges, circumferential wedge sets, and gripper units. Each circumferential wedge set and gripper unit is positioned between the actuator plate and the bowl. Each circumferential wedge set includes a first circumferential wedge and a second circumferential wedge. Each circumferential wedge set is positioned such that an actuator wedge and a bowl wedge engage between the first and second circumferential wedges. Each gripper unit includes a gripper body positioned between and abutting a first circumferential wedge of a first circumferential wedge set and a second circumferential wedge of a second circumferential wedge set. Linear compression between the actuator plate and bowl causes circumferential movement of the circumferential wedges, which in turn causes radial expansion of the gripper units.
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
A completion system includes a pipeline fitting (F); a plug body (P) sized for the fitting; a set of blades (B) adapted for securing the plug body within the fitting, the blades having a retracted position and an extended position; a circumferential groove adapted to receive the set blades when in the extended position; and a control bar (C) adapted for use with the plug body, wherein the completion system further includes a sensor (S) and the set of blades is further adapted to trigger the sensor when the set of blades is extended into the circumferential groove at a predetermined locking depth within the circumferential groove.
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
4.
PIPELINE PIG WITH PRESSURE-EQUALIZING TRANSMITTER CAVITY SYSTEM
A pipeline pig (10) comprising: a transmitter cavity (13) located between a forward end (29) and a rearward end (31) of the pipeline pig and arranged coaxial a central longitudinal centerline (23) of the pipeline pig, the transmitter cavity having a forward end (39) and a rearward end (41), the forward end being a closed end; a flange (17) located at the rearward end of the cavity, the flange including a central opening and having a first hardness; a plug (15) sized for engagement with the central opening of the flange, the plug including a thru passageway (25) and having a second hardness different than that of the first hardness;wherein, when the plug is engaged with the flange, the transmitter cavity is in fluid communication with the thru passageway of the plug.
F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
A gripper assembly for a pipeline plug includes an actuator plate, bowl, and gripper unit. The actuator plate includes a wedge surface. The bowl includes a bowl expansion face. The bowl expansion face has bowl stairsteps. The gripper unit includes a gripper body. The gripper body is positioned between the actuator plate and the bowl. The gripper body includes an expansion face having gripper stairsteps, the gripper stairsteps corresponding to the bowl stairsteps.
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
6.
SINGLE OR MULTI-DUROMETER ELASTOMER, SELF-ACTUATING, DYNAMIC, STRESS SUPPRESSOR FOR HOT TAPPING TOOLS
Embodiments of a plugging tool (10) of this disclosure a control bar head (20) and at least one sealing head (30, 40) pivotally connected to the control bar head, the control bar head including a stress suppressor (50) located at a lower end (25) of the control bar head, the stress suppressor including an elastomeric element (51). The stress suppressor can act as a dual-stage suppressor, there being a primary (first stage) and a secondary (second stage) stress suppressor or zone (50A, 50B). The primary stress suppressor has an arched-shaped lowermost end (58) located between a pair of spaced-apart feet (21) of the control bar head, the feet having lateral edges (23) and comprising the secondary stress suppressor. During rotation of the tool into the pipe, stress to the pipe is reduced in a range of 5X to 14X relative to a plugging tool without the stress suppressor.
F16L 55/124 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
F16L 57/02 - Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
7.
SINGLE OR MULTI-DUROMETER ELASTOMER, SELF-ACTUATING, DYNAMIC, STRESS SUPPRESSOR FOR HOT TAPPING TOOLS
Embodiments of a plugging tool (10) of this disclosure a control bar head (20) and at least one sealing head (30, 40) pivotally connected to the control bar head, the control bar head including a stress suppressor (50) located at a lower end (25) of the control bar head, the stress suppressor including an elastomeric element (51). The stress suppressor can act as a dual-stage suppressor, there being a primary (first stage) and a secondary (second stage) stress suppressor or zone (50A, SOB). The primary stress suppressor has an arched-shaped lowermost end (58) located between a pair of spaced-apart feet (21) of the control bar head, the feet having lateral edges (23) and comprising the secondary stress suppressor. During rotation of the tool into the pipe, stress to the pipe is reduced in a range of 5X to 14X relative to a plugging tool without the stress suppressor.
Pipeline isolation tool for sealing extrusion gaps of up to about 20% or greater includes a pair of fenced barriers (60, 160) having overlapping segments (68/70, 168/170) for restraining a seal (40). The segments expand to a pipe wall before the seal to prevent transition of seal medium over the segments and form a support wall for the seal. The support wall may include a protection ring (200). Springs (80, 180) surround each fenced barrier for returning the support system to a relaxed position. Inner rings (90. 190) are provided on sealing element facing surfaces (64, 164) of the fenced barrier for supporting the segments. The inner rings define a smooth inner guiding surface (92, 192) for the seal. The guiding surface is tilted inwardly towards the seal for resisting the sealing element during expansion and for preventing an inside diameter of the seal from expanding outwardly when compressed.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16J 15/02 - Sealings between relatively-stationary surfaces
9.
SEAL ASSEMBLY FOR PIPELINE ISOLATION TOOL AND METHODS OF USE
A seal assembly for a pipeline plug may include a pressure head including a forcing face. The seal assembly may include a primary tapered ring including an expansion face. The expansion face may abut the forcing face. The seal assembly may include primary seal ring. The seal assembly may include a squeezer assembly, the squeezer assembly including at least one seal face, the seal face abutting the primary seal ring. The seal assembly may include a secondary tapered ring, the secondary tapered ring including a wedge squeezer face, the wedge squeezer face abutting a wedge face of the squeezer assembly. The seal assembly may include a bowl, the bowl including a wedge face, the wedge face in abutment with an expansion face of the secondary tapered ring.
A pipeline plug includes a pressure head; a seal assembly; a seal expansion ring; a plurality of gripper bodies, a sliding gripper, and an actuator. Each gripper body is coupled to the seal expansion ring. Radial expansion of the gripper bodies supports radial expansion of the seal expansion ring. Additionally, radial expansion of the seal expansion ring supports radial expansion of the gripper bodies. The sliding gripper is slidingly coupled to a radially outer surface of the gripper body.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
A pipeline plug includes a plug body. The plug body includes an outer housing. The interior of the outer housing defines a pressure vessel. The pipeline plug includes a pressure head coupled to the plug body, a seal assembly, a gripper assembly, a movable head, and an actuation mechanism. The actuation mechanism includes a leadscrew, the leadscrew coupled to the movable head. The actuation mechanism includes a captive nut, the captive nut positioned within the pressure vessel. The actuation mechanism includes a motor, the motor operatively coupled to the captive nut and adapted to rotate the captive nut.
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
A pipeline isolation tool (10) with a circumferential seal (30) having a T-shaped cross section. The seal has a radially oriented lower seal profile (36) and an axially oriented upper seal profile (38). Pressure heads (40, 50) are located on either side (32, 34) of the lower profile. Overlapping structural elements (60, 80) are located on either side (32, 34) of the upper profile and include a concave area (70, 90) for receiving a portion of the upper seal profile. The inner face (64, 84) of the structural elements contact the outer surfaces (42, 52) of the pressure heads. Angle plates (100, 110) define an inner face (102, 112) that contacts an outer face (66, 86) of each of the structural elements. The tool may be configured as an intrusive tool or as a non-intrusive tool.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16L 55/105 - Closing devices introduced radially into the pipe or hose
F16L 55/124 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
13.
PIPELINE ISOLATION TOOL WITH LARGE-GAP SEALING ELEMENT HAVING MINI PRESSURE HEADS AND IRIS-LIKE STRUCTURAL SEALING ELEMENTS
A pipeline isolation tool (10) with a circumferential seal (30) having a T-shaped cross section. The seal has a radially oriented lower seal profile (36) and an axially oriented upper seal profile (38). Pressure heads (40, 50) are located on either side (32, 34) of the lower profile. Overlapping structural elements (60, 80) are located on either side (32, 34) of the upper profile and include a concave area (70, 90) for receiving a portion of the upper seal profile. The inner face (64, 84) of the structural elements contact the outer surfaces (42, 52) of the pressure heads. Angle plates (100, 110) define an inner face (102, 112) that contacts an outer face (66, 86) of each of the structural elements. The tool may be configured as an intrusive tool or as a non-intrusive tool.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16L 55/124 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
F16L 55/105 - Closing devices introduced radially into the pipe or hose
14.
PIPELINE ISOLATION TOOL WITH LARGE-GAP SEALING ELEMENT HAVING MINI PRESSURE HEADS AND IRIS-LIKE STRUCTURAL SEALING ELEMENTS
A pipeline isolation tool (10) with a circumferential seal (30) having a T-shaped cross section. The seal has a radially oriented lower seal profile (36) and an axially oriented upper seal profile (38). Pressure heads (40, 50) are located on either side (32, 34) of the lower profile. Overlapping structural elements (60, 80) are located on either side (32, 34) of the upper profile and include a concave area (70, 90) for receiving a portion of the upper seal profile. The inner face (64, 84) of the structural elements contact the outer surfaces (42, 52) of the pressure heads. Angle plates (100, 110) define an inner face (102, 112) that contacts an outer face (66, 86) of each of the structural elements. The tool may be configured as an intrusive tool or as a non-intrusive tool.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16J 15/06 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
A pipeline plug includes a plug body. The plug body includes an outer housing. The interior of the outer housing defines a pressure vessel. The pipeline plug includes a pressure head coupled to the plug body, a seal assembly, a gripper assembly, a movable head, and an actuation mechanism. The actuation mechanism includes a leadscrew, the leadscrew coupled to the movable head. The actuation mechanism includes a captive nut, the captive nut positioned within the pressure vessel. The actuation mechanism includes a motor, the motor operatively coupled to the captive nut and adapted to rotate the captive nut.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
E21B 33/128 - Packers; Plugs with a member expanded radially by axial pressure
F16L 55/12 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
F16L 55/44 - Constructional aspects of the body expandable
A pipeline plug includes a plug body. The plug body includes an outer housing. The interior of the outer housing defines a pressure vessel. The pipeline plug includes a pressure head coupled to the plug body, a seal assembly, a gripper assembly, a movable head, and an actuation mechanism. The actuation mechanism includes a leadscrew, the leadscrew coupled to the movable head. The actuation mechanism includes a captive nut, the captive nut positioned within the pressure vessel. The actuation mechanism includes a motor, the motor operatively coupled to the captive nut and adapted to rotate the captive nut.
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
F16L 55/44 - Constructional aspects of the body expandable
F16D 55/02 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
A system and method for detecting passage of a pipeline pig, the system and method including a passive impulse detector (10) having a housing (13); a non-intrusive connection (15) of the housing to an exterior wall (17) of a pipeline (P), at least one vibration sensor (11) housed by the housing, and signal processing (23) including at least one band pass filter (27) configured to receive data collected by the vibration sensor, the vibration sensor and band pass filter configured to monitor frequencies in a predetermined range indicating a series of impulses caused by start-and-stop movement of the pipeline pig. The selected frequencies should be those more easily detectable above the baseline (signature or natural resonance) frequency of the section of pipeline being monitored. In some embodiments, the selected frequencies are lower frequencies. No portion of the passive pipeline pig signal intrudes into an interior of the pipeline.
F16L 1/20 - Accessories therefor, e.g. floats or weights
F16L 1/26 - Repairing or joining pipes on or under water
G01N 29/14 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
F16L 55/48 - Indicating the position of the pig or mole in the pipe or conduit
A pipeline plug includes a pressure head; a seal assembly; a seal expansion ring; a plurality of gripper bodies, a sliding gripper, and an actuator. Each gripper body is coupled to the seal expansion ring. Radial expansion of the gripper bodies supports radial expansion of the seal expansion ring. Additionally, radial expansion of the seal expansion ring supports radial expansion of the gripper bodies. The sliding gripper is slidingly coupled to a radially outer surface of the gripper body.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
A pipeline plug includes a pressure head; a seal assembly; a seal expansion ring; a plurality of gripper bodies, a sliding gripper, and an actuator. Each gripper body is coupled to the seal expansion ring. Radial expansion of the gripper bodies supports radial expansion of the seal expansion ring. Additionally, radial expansion of the seal expansion ring supports radial expansion of the gripper bodies. The sliding gripper is slidingly coupled to a radially outer surface of the gripper body.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
20.
Gripper assembly for pipeline isolation tool and methods of use
A gripper assembly for a pipeline plug includes an actuator plate, bowl, and gripper unit. The actuator plate includes a wedge surface. The bowl includes a bowl expansion face. The bowl expansion face has bowl stairsteps. The gripper unit includes a gripper body. The gripper body is positioned between the actuator plate and the bowl. The gripper body includes an expansion face having gripper stairsteps, the gripper stairsteps corresponding to the bowl stairsteps.
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16K 7/20 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with a compressible solid closure member
F16L 55/13 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by plastic deformation
22.
Gripper assembly for pipeline isolation tool and methods of use
A gripper assembly for a pipeline plug includes an actuator plate that includes at least two actuator wedges, a bowl that includes at least two bowl wedges, circumferential wedge sets, and gripper units. Each circumferential wedge set and gripper unit is positioned between the actuator plate and the bowl. Each circumferential wedge set includes a first circumferential wedge and a second circumferential wedge. Each circumferential wedge set is positioned such that an actuator wedge and a bowl wedge engage between the first and second circumferential wedges. Each gripper unit includes a gripper body positioned between and abutting a first circumferential wedge of a first circumferential wedge set and a second circumferential wedge of a second circumferential wedge set. Linear compression between the actuator plate and bowl causes circumferential movement of the circumferential wedges, which in turn causes radial expansion of the gripper units.
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
23.
SEAL ASSEMBLY FOR PIPELINE ISOLATION TOOL AND METHODS OF USE
A seal assembly for a pipeline plug may include a pressure head including a forcing face. The seal assembly may include a primary tapered ring including an expansion face. The expansion face may abut the forcing face. The seal assembly may include primary seal ring. The seal assembly may include a squeezer assembly, the squeezer assembly including at least one seal face, the seal face abutting the primary seal ring. The seal assembly may include a secondary tapered ring, the secondary tapered ring including a wedge squeezer face, the wedge squeezer face abutting a wedge face of the squeezer assembly. The seal assembly may include a bowl, the bowl including a wedge face, the wedge face in abutment with an expansion face of the secondary tapered ring.
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
E21B 33/128 - Packers; Plugs with a member expanded radially by axial pressure
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
24.
Seal assembly for pipeline isolation tool and methods of use
A seal assembly for a pipeline plug may include a pressure head including a forcing face. The seal assembly may include a primary tapered ring including an expansion face. The expansion face may abut the forcing face. The seal assembly may include primary seal ring. The seal assembly may include a squeezer assembly, the squeezer assembly including at least one seal face, the seal face abutting the primary seal ring. The seal assembly may include a secondary tapered ring, the secondary tapered ring including a wedge squeezer face, the wedge squeezer face abutting a wedge face of the squeezer assembly. The seal assembly may include a bowl, the bowl including a wedge face, the wedge face in abutment with an expansion face of the secondary tapered ring.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
Embodiments of a polyethylene (“PE”) pipe servicing system of this disclosure may include a fusible PE fitting (F) providing a branch connection to a PE pipeline section or run (P), a valve (10) connected to the fitting and including quick connect/disconnect means, and a machine connectable to the valve including complementary quick connect/disconnect means. The quick connect means provide for full scope of operation, including cleaning, fusion, cool down, hot tap, plugging, and completion. No squeezing is used. The quick connect/disconnect means may include a first portion 20 of a cam profile and a second portion 40 of the cam profile complementary to that of the first. The machine may be a drilling or hot tapping machine (30T), a plugging machine (30P), or a completion machine (30C), and their associated tools. The valve and machine are more lightweight and faster and easier to use than the prior art.
F16L 37/256 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling not being coaxial with the pipe
F16L 47/34 - Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor
F16L 55/07 - Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
F16K 1/30 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
A pipeline pigging element (10) that changes its size in an axial and a radial direction as a function of applied pipeline pressure. The pigging element includes at least two circumferential zones (13, 15) having different section modulus than one another, each of the zones changing at different rates from one another between an uninflated and an inflated state at the applied pipeline pressure. The pigging element reacts to changes in pipe geometry, having a first length and a first diameter at a first applied pipeline pressure and a second length and a second diameter different than the first at a second applied pipeline pressure. As the pigging element wears, it becomes easier to inflate at the applied pressure and sealing contact with the pipe wall remains substantially unaffected. No onboard pumps or fluid circuits are required to inflate the pigging element.
A pipeline pigging element (10) that changes its size in an axial and a radial direction as a function of applied pipeline pressure. The pigging element includes at least two circumferential zones (13, 15) having different section modulus than one another, each of the zones changing at different rates from one another between an uninflated and an inflated state at the applied pipeline pressure. The pigging element reacts to changes in pipe geometry, having a first length and a first diameter at a first applied pipeline pressure and a second length and a second diameter different than the first at a second applied pipeline pressure. As the pigging element wears, it becomes easier to inflate at the applied pressure and sealing contact with the pipe wall remains substantially unaffected. No onboard pumps or fluid circuits are required to inflate the pigging element.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
F16L 55/134 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing
F16L 55/44 - Constructional aspects of the body expandable
28.
PRESSURE-RESPONSIVE, DEFORMABLE, SELF-INTEGRATING PIGGING ELEMENT FOR USE IN PIPELINE PIGGING APPLICATIONS
A pipeline pigging element (10) that changes its size in an axial and a radial direction as a function of applied pipeline pressure. The pigging element includes at least two circumferential zones (13, 15) having different section modulus than one another, each of the zones changing at different rates from one another between an uninflated and an inflated state at the applied pipeline pressure. The pigging element reacts to changes in pipe geometry, having a first length and a first diameter at a first applied pipeline pressure and a second length and a second diameter different than the first at a second applied pipeline pressure. As the pigging element wears, it becomes easier to inflate at the applied pressure and sealing contact with the pipe wall remains substantially unaffected. No onboard pumps or fluid circuits are required to inflate the pigging element.
A pipeline inspection tool (10) including a cylindrical tool body (11) that includes a deformable portion (13) with a plurality of sensors (25) located near or on an external circumferential surface (12) of the deformable portion. A sealed unit (60) contains a corresponding signal source (25). Pipeline gauging relies upon the compressibility and elasticity inherent in the deformable portion as it encounters anomalies in pipeline geometry and moves between a first size and a second size, the signal strength of the source detected by the sensors changing as a result. The sensors may be arrayed in a circumferential band (47) about the deformable portion or along its length. In some embodiments, the sensors and source are magnetic or acoustic (e.g., transceivers or radar integrated chips). In other embodiments, the sensors and source are light or fiber optic.
A pipeline inspection tool (10) including a cylindrical tool body (11) that includes a deformable portion (13) with a plurality of sensors (25) located near or on an external circumferential surface (12) of the deformable portion. A sealed unit (60) contains a corresponding signal source (25). Pipeline gauging relies upon the compressibility and elasticity inherent in the deformable portion as it encounters anomalies in pipeline geometry and moves between a first size and a second size, the signal strength of the source detected by the sensors changing as a result. The sensors may be arrayed in a circumferential band (47) about the deformable portion or along its length. In some embodiments, the sensors and source are magnetic or acoustic (e.g., transceivers or radar integrated chips). In other embodiments, the sensors and source are light or fiber optic.
A re-settable pipeline gauging tool (10) of this disclosure includes a cylindrical tool body (11) that includes a deformable portion (13) with a plurality of sensors (25) located near or on an external circumferential surface (12) of the deformable portion. A sealed unit (60) contains a corresponding signal source (25). Pipeline gauging relies upon the compressibility and elasticity inherent in the deformable portion as it encounters anomalies in pipeline geometry and moves between a first size and a second size, the signal strength of the source detected by the sensors changing as a result. The sensors may be arrayed in a circumferential band (47) about the deformable portion or along its length. In some embodiments, the sensors and source are magnetic or acoustic (e.g., transceivers or radar integrated chips). In other embodiments, the sensors and source are light or fiber optic.
G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
G01N 27/87 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
A pig trap of this disclosure may include one or more injectors or nozzles located along a sidewall of the barrel and oriented to deliver a jet of fluid toward a back side of a vertical member of a pig or tool. The nozzle may be part of an assembly that includes a longitudinally extending pipe having a flat-profile flange at an inlet end, a curved-profile flange at the nozzle end, and a bend in between the two ends. When the assembly is installed in a sidewall opening of a pig trap, the nozzle delivers a jet of fluid toward the back side of a vertical member of the pig. A leak path may be provided through flanges or formed between the sidewall opening and a periphery of the curved-profile flange. Launch forces of more than 10 to 15 times that of a conventional launcher may be achieved.
F16L 41/00 - Branching pipes; Joining pipes to walls
F16L 55/38 - Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
33.
Shaft mechanical lock for pipeline isolation tools
A mechanical lock unit with a shaft lock assembly and method of achieving a self-lock mode for, e.g., hydraulically activated isolation plug module. The shaft lock assembly includes a teeth-form ring that surrounds a shaft. The teeth-form ring defines a plurality of teeth. A teeth-form split gripper assembly is positioned to surround the teeth-form ring. The teeth-form split gripper assembly has at least a first teeth-form split gripper and a second teeth-form split gripper with a spring therebetween for biasing the first teeth-form split gripper away from said second teeth-form split gripper. The first teeth-form split gripper and the second teeth form split gripper having an inner surface that defines a plurality of teeth for cooperative engagement with the plurality of teeth of the teeth-form ring.
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
34.
WEAR INDICATOR FOR USE WITH PIPELINE PIG COMPONENTS HAVING A PIPE WALL CONTACTING SURFACE
A pigging device (10) includes at least one pipe wall contacting surface (34) and a wear indicator (30) configured to visually indicate an amount of material loss of the pipe wall contacting surface. The pipe wall contacting surface may be any shape suitable, including but not limited to spherical-shaped, cylindrical-shaped, cup-shaped, disc-shaped, conical-shaped. frusto-conical shaped, bowl-shaped, and bullet-shaped. In some embodiments, the pigging device is a pipeline pig such as but not limited to a spherical foam pig, cylindrical-shaped foam pig, or a bullet-shaped foam pig. In other embodiments, the pigging device is a component of a pipeline: pig such as but not limited to a cup (11) or disc arranged, about a body of the pipeline pig. The pigging device may also be a pigging disc element. The pigging device may be made of any suitable material, including but not limited to an elastomer such as urethane.
A pigging device of this disclosure includes a wear indicator configured to visually indicate an amount of material loss of a pipe wall contacting surface. The material loss may be symmetrical or asymmetrical. The pipe wall contacting surface may be any shape suitable, including but not limited to spherical-shaped, cylindrical-shaped, cup-shaped, disc-shaped, conical-shaped, frusto-conical shaped, bowl-shaped, and bullet-shaped. In some embodiments, the pigging device is a pipeline pig such as but not limited to a spherical foam pig, cylindrical-shaped foam pig, or a bullet-shaped foam pig. In other embodiments, the pigging device is a component of a pipeline pig such as but not limited to a cup or disc arranged about a body of the pipeline pig. The pigging device may also be a pigging disc element. The pigging device may be made of any suitable material, including but not limited to an elastomer such as urethane.
A pigging device (10) includes at least one pipe wall contacting surface (34) and a wear indicator (30) configured to visually indicate an amount of material loss of the pipe wall contacting surface. The pipe wall contacting surface may be any shape suitable, including but not limited to spherical-shaped, cylindrical-shaped, cup-shaped, disc-shaped, conical-shaped. frusto-conical shaped, bowl-shaped, and bullet-shaped. In some embodiments, the pigging device is a pipeline pig such as but not limited to a spherical foam pig, cylindrical-shaped foam pig, or a bullet-shaped foam pig. In other embodiments, the pigging device is a component of a pipeline: pig such as but not limited to a cup (11) or disc arranged, about a body of the pipeline pig. The pigging device may also be a pigging disc element. The pigging device may be made of any suitable material, including but not limited to an elastomer such as urethane.
An inline inspection tool of this disclosure includes at least one sensor arrn (50) having a sensor head (30) located at its distal end (51), the sensor head including an arched- shaped pipe contacting portion (33) between its forward, and rearward ends (32, 34), the pipe contacting portion having a radius R and a width Wc and at least one triaxial sensor element (31) having at least a portion located directly below the arched-shaped pipe contacting portion and having a width Ws, Wc < Ws, During the tool's travel through a pipeline, contact, of the sensor head with the pipe wall lies along a single line of travel substantially equal to the width Wc. Because of its shape, the sensor head better traces and rnaintains contact with the pipe wail to detect dents. wrinkles, weld intrusions, and other defects or anornalies in the pipe wail
G01N 27/87 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
Embodiments of a multi-diameter foam pig include a first set of radially spaced-apart, longitudinally extending, slots located toward a nose end of the pig and a second set of radially spaced-apart, longitudinally extending, slots located toward a tail end. Each set of slots ends at a band section of the pig so that, together, the two sets of slots do not traverse the entire length of the pig. A standard-length unit version of the foam pig includes only the first set of slots. A set of shorter, intermediate slots, offset in a circumferential direction from the first and second set of slots and partially overlapping those slots, may be included on the band section. Because of the slots, and because of open cell foam, the foam pig decreases or increases in diameter as it enters a different diameter run than the run just traveled.
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
F16L 55/44 - Constructional aspects of the body expandable
An inline inspection tool of this disclosure includes at least one sensor arm (50) having a sensor head (30) located at its distal end (51), the sensor head including an arched-shaped pipe contacting portion (33) between its forward, and rearward ends (32, 34), the pipe contacting portion having a radius R and a width Wc and at least one triaxial sensor element (31) having at least a portion located directly below the arched-shaped pipe contacting portion and having a width Ws, Wc < Ws, During the tool's travel through a pipeline, contact, of the sensor head with the pipe wall lies along a single line of travel substantially equal to the width Wc. Because of its shape, the sensor head better traces and maintains contact with the pipe wail to detect dents. wrinkles, weld intrusions, and other defects or anomalies in the pipe wail
G01N 27/87 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
40.
Single point contact triaxial sensor head for an inline inspection tool
C. Because of its shape, the sensor head better traces and maintains contact with the pipe wall to detect dents, wrinkles, weld intrusions, and other defects or anomalies in the pipe wall.
G01N 27/83 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
G01N 27/87 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
41.
PIPELINE TOOL WITH COMPOSITE MAGNETIC FIELD FOR INLINE INSPECTION
Embodiments of an inline inspection ("ILI") tool (10) of this disclosure include a plurality of composite field systems (20) arranged circumferentially about the body of the ILI tool, each composite field system including multiple magnetic circuits (60) to produce a composite or resultant angled field C relative to the target, along with a sensor array or circuit (40) configured for magnetic flux leakage ("MFL") or magnetostrictive electro-magnetic acoustic transducers ("EMAT") implementations. In embodiments, the pole magnets (61) of the magnetic circuits are oriented in the axial direction of the tool body rather than in the direction of the resultant angled field. The same is true of the sensors (43). This composite field system approach provides options to design geometries that were not previously possible in prior art single- circuit helical MFL designs and EMAT designs.
G01N 27/82 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
G01N 27/83 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
42.
Pipeline tool with composite magnetic field for inline inspection
G01N 27/87 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
Embodiments of an inline inspection ("IL1") tool (10) of this disclosure include a plurality of composite field systems (20) arranged circumferentially about the body of the IL1 tool, each composite field system including multiple magnetic circuits (60) to produce a composite or resultant angled field C relative to the target, along with a sensor array or circuit (40) configured for magnetic flux.leakage ("MFL") or magnetostrictive electro-magnetic acoustic transducers ("EMAT" ) implementations. In embodiments, the pole magnets (61) of the magnetic circuits are oriented in the axial direction of the tool body rather than in the direction of the resultant angled field. The same is true of the sensors (43). This composite field system approach provides options to design -geometries that were not previously possible in prior art single-circuit helical MFL designs and EMAT designs.
G01N 27/87 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
44.
Polyethylene pipe service system including quick connect means for polyethylene pipe tapping, plugging, and completion operations
Embodiments of a polyethylene (“PE”) pipe servicing system of this disclosure may include a fusible PE fitting (F) providing a branch connection to a PE pipeline section or run (P), a valve (10) connected to the fitting and including quick connect/disconnect means, and a machine connectable to the valve including complementary quick connect/disconnect means. The quick connect means provide for full scope of operation, including cleaning, fusion, cool down, hot tap, plugging, and completion. No squeezing is used. The quick connect/disconnect means may include a first portion 20 of a cam profile and a second portion 40 of the cam profile complementary to that of the first. The machine may be a drilling or hot tapping machine (30T), a plugging machine (30P), or a completion machine (30 C), and their associated tools. The valve and machine are more lightweight and faster and easier to use than the prior art.
F16L 47/34 - Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor
F16L 37/256 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling not being coaxial with the pipe
F16L 55/07 - Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
F16K 1/30 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
Embodiments of a polyethylene ("PE") pipe servicing system of this disclosure may include a fusible PE fitting (F) providing a branch connection to a PE pipeline section or run (P), a valve (10) connected to the fitting and including quick connect/disconnect means, and a machine connectable to the valve including complementary quick connect/disconnect means. The quick connect means provide for full scope of operation, including cleaning, fusion, cool down, hot tap, plugging, and completion. No squeezing is used. The quick connect/disconnect means may include a first portion 20 of a cam profile and a second portion 40 of the cam profile complementary to that of the first. The machine may be a drilling or hot tapping machine (30T), a plugging machine (30P), or a completion machine (30C), and their associated tools. The valve and machine are more lightweight and faster and easier to use than the prior art.
F16L 41/06 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
46.
POLYETHYLENE PIPE SERVICE SYSTEM INCLUDING QUICK CONNECT MEANS FOR POLYETHYLENE PIPE TAPPING, PLUGGING, AND COMPLETION OPERATIONS
Embodiments of a polyethylene ("PE") pipe servicing system of this disclosure may include a fusible PE fitting (F) providing a branch connection to a PE pipeline section or run (P), a valve (10) connected to the fitting and including quick connect/disconnect means, and a machine connectable to the valve including complementary quick connect/disconnect means. The quick connect means provide for full scope of operation, including cleaning, fusion, cool down, hot tap, plugging, and completion. No squeezing is used. The quick connect/disconnect means may include a first portion 20 of a cam profile and a second portion 40 of the cam profile complementary to that of the first. The machine may be a drilling or hot tapping machine (30T), a plugging machine (30P), or a completion machine (30C), and their associated tools. The valve and machine are more lightweight and faster and easier to use than the prior art.
F16L 41/06 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
47.
Use of high speed radio frequency protocols for communication with pipeline pigs and inspection tools
A method and system of high speed radio frequency communication between an outside of a metallic pipeline or vessel and an interior volume contained by the metallic pipeline or vessel includes passing a high speed radio frequency signal through a communication portal having a high speed radio frequency permittive material exposed to the interior volume of the metallic pipeline and to the outside. The high speed radio frequency signal may be transmitted from the interior volume to the outside or from the outside to the interior volume. The communication portal may be a cylindrical- or planar-shaped body connected to the metallic pipeline. A tool located within the interior volume may transmit, receive, or transmit and receive the high speed radio frequency signal. The high speed radio frequency signal may be configured according to a 2.45 GHz standard protocol.
H04B 13/00 - Transmission systems characterised by the medium used for transmission, not provided for in groups
F16L 41/00 - Branching pipes; Joining pipes to walls
G01M 3/00 - Investigating fluid tightness of structures
H01Q 1/44 - ANTENNAS, i.e. RADIO AERIALS - Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna
G01V 15/00 - Tags attached to, or associated with, an object, in order to enable detection of the object
F16L 55/48 - Indicating the position of the pig or mole in the pipe or conduit
H04B 7/00 - Radio transmission systems, i.e. using radiation field
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
F16L 55/46 - Launching or retrieval of pigs or moles
H01Q 13/28 - Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
A mechanical lock unit (10, 100, 210, 410) with a shaft lock assembly (12) and method of achieving a self-lock mode for, e.g., hydraulically activated isolation plug module. The shaft lock assembly (12) includes a teeth-form ring (30, 130, 230) that surrounds a shaft (14, 114, 214). The teeth-form ring (30, 130, 230) defines a plurality of teeth (38, 138, 238). A teeth-form split gripper assembly (340) is positioned to surround the teeth-form ring (30, 130, 230). The teeth-form split gripper assembly (340) has at least a first teeth-form split gripper (342) and a second teeth-form split gripper (344) with a spring (346) therebetween for biasing the first teeth-form split gripper (342) away from said second teeth-form split gripper (344). The first teeth-form split gripper (342) and the second teeth form split gripper (344) having an inner surface (348) that defines a plurality of teeth (350) for cooperative engagement with the plurality of teeth (38, 138, 238) of the teeth-form ring (30, 130, 230).
E21B 33/128 - Packers; Plugs with a member expanded radially by axial pressure
E21B 33/129 - Packers; Plugs with mechanical slips for hooking into the casing
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
49.
Shaft mechanical lock for pipeline isolation tools
A mechanical lock unit with a shaft lock assembly and method of achieving a self-lock mode for, e.g., hydraulically activated isolation plug module. The shaft lock assembly includes a teeth-form ring that surrounds a shaft. The teeth-form ring defines a plurality of teeth. A teeth-form split gripper assembly is positioned to surround the teeth-form ring. The teeth-form split gripper assembly has at least a first teeth-form split gripper and a second teeth-form split gripper with a spring therebetween for biasing the first teeth-form split gripper away from said second teeth-form split gripper. The first teeth-form split gripper and the second teeth form split gripper having an inner surface that defines a plurality of teeth for cooperative engagement with the plurality of teeth of the teeth-form ring.
A mechanical lock unit (10, 100, 210, 410) with a shaft lock assembly (12) and method of achieving a self-lock mode for, e.g., hydraulically activated isolation plug module. The shaft lock assembly (12) includes a teeth-form ring (30, 130, 230) that surrounds a shaft (14, 114, 214). The teeth-form ring (30, 130, 230) defines a plurality of teeth (38, 138, 238). A teeth-form split gripper assembly (340) is positioned to surround the teeth-form ring (30, 130, 230). The teeth-form split gripper assembly (340) has at least a first teeth-form split gripper (342) and a second teeth-form split gripper (344) with a spring (346) therebetween for biasing the first teeth-form split gripper (342) away from said second teeth-form split gripper (344). The first teeth-form split gripper (342) and the second teeth form split gripper (344) having an inner surface (348) that defines a plurality of teeth (350) for cooperative engagement with the plurality of teeth (38, 138, 238) of the teeth-form ring (30, 130, 230).
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
E21B 33/128 - Packers; Plugs with a member expanded radially by axial pressure
E21B 33/129 - Packers; Plugs with mechanical slips for hooking into the casing
A pipeline isolation tool (10) and method of its use includes a plugging head (20) having a seal (30) to sealably engage a pipe wall; a fluid-activated cylinder (64) located on one side of the seal and moveable in an axial direction; metal support segments (40) located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion (45), a portion (35) of the seal residing within the concave portion when unset and set. When in a seal unset position a portion (33) of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
A pipeline isolation tool (10) and method of its use includes a plugging head (20) having a seal (30) to sealably engage a pipe wall; a fluid-activated cylinder (64) located on one side of the seal and moveable in an axial direction; metal support segments (40) located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion (45), a portion (35) of the seal residing within the concave portion when unset and set. When in a seal unset position a portion (33) of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
A pipeline isolation tool [10] and method of its use includes a plugging head [20] having a seal [30] to sealably engage a pipe wall; a fluid-activated cylinder [64] located on one side of the seal and moveable in an axial direction; metal support segments [40] located on another side of the seal and moveable in a transverse direction radially outward and inward; the metal segments including a concave portion [45], a portion [35] of the seal residing within the concave portion when unset and set. When in a seal unset position a portion [33] of the seal is covered by adjacent metal support segments of the plurality. When in a seal set position the portion of the seal is exposed between the adjacent metal support segments. The seal is self-energizing, its actuating force being in a same direction as a force from isolation pressure.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
F16K 7/20 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with a compressible solid closure member
F16L 55/13 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by plastic deformation
54.
VESSEL CLOSURE DEVICE WITH FAIL SAFE FAILURE DETECTION MEANS
A closure [10] for a cylindrical vessel includes at least one holding means [30] configured to move the closure into a fully closed state, the holding means having a predetermined actuation force or torque to properly close the closure, the closure including one or both of the following failsafe failure detection features: a mechanical fuse [20] having a predetermined load failure force below that of a load failure force of at least one component of the holding means and above that of a predetermined actuation force or torque to properly close the closure; or a block [40] sized to at least partially overlap a pressure warning lock hole [19] of the closure door when the closure is not in the fully closed state and to fully expose the pressure warning lock hole when the closure is in the fully closed state, thereby permitting insertion of a pressure warning lock [17].
A closure [10] for a cylindrical vessel includes at least one holding means [30] configured to move the closure into a fully closed state, the holding means having a predetermined actuation force or torque to properly close the closure, the closure including one or both of the following failsafe failure detection features: a mechanical fuse [20] having a predetermined load failure force below that of a load failure force of at least one component of the holding means and above that of a predetermined actuation force or torque to properly close the closure; or a block [40] sized to at least partially overlap a pressure warning lock hole [19] of the closure door when the closure is not in the fully closed state and to fully expose the pressure warning lock hole when the closure is in the fully closed state, thereby permitting insertion of a pressure warning lock [17].
A closure [10] for a cylindrical vessel includes at least one holding means [30] configured to move the closure into a fully closed state, the holding means having a predetermined actuation force or torque to properly close the closure, the closure including one or both of the following failsafe failure detection features: a mechanical fuse [20] having a predetermined load failure force below that of a load failure force of at least one component of the holding means and above that of a predetermined actuation force or torque to properly close the closure; or a block[40] sized to at least partially overlap a pressure warning lock hole [19] of the closure door when the closure is not in the fully closed state and to fully expose the pressure warning lock hole when the closure is in the fully closed state, thereby permitting insertion of a pressure warning lock [17].
A system and method for detecting passage of a pipeline pig, the system and method including a passive impulse detector [10] having a housing [13]; a non-intrusive connection [15] of the housing to an exterior wall [17] of a pipeline [P], at least one vibration sensor [11] housed by the housing; and signal processing [23] including at least one band pass filter [27] configured to receive data collected by the vibration sensor, the vibration sensor and band pass filter configured to monitor frequencies in a predetermined range indicating the impulse. The selected frequencies should be those more easily detectable above the baseline (signature or natural resonance) frequency of the section of pipeline being monitored. In some embodiments, the selected frequencies are lower frequencies. No portion of the passive pipeline pig signal intrudes into an interior of the pipeline.
F16L 1/20 - Accessories therefor, e.g. floats or weights
F16L 1/26 - Repairing or joining pipes on or under water
G01N 29/14 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
F16L 55/48 - Indicating the position of the pig or mole in the pipe or conduit
A system and method for detecting passage of a pipeline pig, the system and method including a passive impulse detector (10) having a housing (13); a non-intrusive connection (15) of the housing to an exterior wall (17) of a pipeline (P), at least one vibration sensor (11) housed by the housing,; and signal processing (23) including at least one band pass filter (27) configured to receive data collected by the vibration sensor, the vibration sensor and band pass filter configured to monitor frequencies in a predetermined range indicating the impulse. The selected frequencies should be those more easily detectable above the baseline (signature or natural resonance) frequency of the section of pipeline being monitored. In some embodiments, the selected frequencies are lower frequencies. No portion of the passive pipeline pig signal intrudes into an interior of the pipeline.
A system and method for detecting passage of a pipeline pig, the system and method including a passive impulse detector (10) having a housing (13); a non-intrusive connection (15) of the housing to an exterior wall (17) of a pipeline (P), at least one vibration sensor (11) housed by the housing,; and signal processing (23) including at least one band pass filter (27) configured to receive data collected by the vibration sensor, the vibration sensor and band pass filter configured to monitor frequencies in a predetermined range indicating the impulse. The selected frequencies should be those more easily detectable above the baseline (signature or natural resonance) frequency of the section of pipeline being monitored. In some embodiments, the selected frequencies are lower frequencies. No portion of the passive pipeline pig signal intrudes into an interior of the pipeline.
A system and method for non-destructive, in situ, positive material identification of a pipe selects a plurality of test areas that are separated axially and circumferentially from one another and then polishes a portion of each test area. Within each polished area, a non-destructive test device is used to collect mechanical property data and another non-destructive test device is used to collect chemical property data. An overall mean for the mechanical property data, and for the chemical property data, is calculated using at least two data collection runs. The means are compared to a known material standard to determine, at a high level of confidence, ultimate yield strength and ultimate tensile strength within +/−10%, a carbon percentage within +/−25%, and a manganese percentage within +/−20% of a known material standard.
A fusible fitting (10) of this disclosure includes a saddle (11) having a radially extending branch (17) with a closed bottom end (19). The closed bottom end (19) forms a portion of the saddle (11) and contains some of the fusion wires (13) that run through the saddle (11). After the fitting is fused to a pipe (P), the closed bottom end (19) may be tapped through, with that portion of the fusion wires (13) being removed along with the coupon. Because of this configuration, the branch may be a size-on-size or near size-on-size branch. For example, the radially extending branch (17) may have an inside diameter in a range of greater than 75% of an inside diameter of the pipe to 100% of the inside diameter of the pipe plus one wall thickness of the pipe.
F16L 47/03 - Welded joints with an electrical resistance incorporated in the joint
F16L 47/28 - Joining pipes to walls or to other pipes, the axis of the joined pipe being perpendicular to the wall or to the axis of the other pipe
F16L 47/30 - Joining pipes to walls or to other pipes, the axis of the joined pipe being perpendicular to the wall or to the axis of the other pipe using attaching means embracing the pipe
F16L 47/34 - Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor
B29C 65/34 - Joining of preformed parts; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
This invention relates to a plugging machine and a rigid tube provided with a stationary disc integral with the bottom of the tube and oriented almost orthogonal to the tube, with a movable disc paired with the stationary disc. A sealing ring of a resilient material is located between the discs and compressed when the movable disc is pressed against the stationary disc to adhere to an inner surface of the pipeline. The sealing ring is coaxial with respect to the pipeline. The movement of the movable disc is determined by raising or lowering a control rod within the tube by means of sloping sliders made in the lower portion of the rod which engage in respective grooves, likewise sloping, made in an axial shank associated with the movable disc and sliding inside an axial opening of the stationary disc. A component of a force is generated which is parallel to the axis of the discs. The axis is raised or lowered by rotation of a threaded ring engaging in a threading mate at the top of the rod.
F16K 7/20 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with a compressible solid closure member
F16L 55/124 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
63.
USE OF HIGH SPEED RADIO FREQUENCY PROTOCOLS FOR COMMUNICATION WITH PIPELINE PIGS AND INSPECTION TOOLS
A method and system of high speed radio frequency communication between an outside of a metallic pipeline or vessel and an interior volume contained by the metallic pipeline or vessel includes passing a high speed radio frequency signal through a communication portal (10) having a high speed radio frequency permittive material exposed to the interior volume of the metallic pipeline and to the outside. The high speed radio frequency signal may be transmitted from the interior volume to the outside or from the outside to the interior volume. The communication portal (10) may be a cylindrical- or planar-shaped body connected to the metallic pipeline. A tool located within the interior volume may transmit, receive, or transmit and receive the high speed radio frequency signal. The high speed radio frequency signal may be configured according to a 2.45 GHz standard protocol.
A method and system of high speed radio frequency communication between an outside of a metallic pipeline or vessel and an interior volume contained by the metallic pipeline or vessel includes passing a high speed radio frequency signal through a communication portal (10) having a high speed radio frequency permittive material exposed to the interior volume of the metallic pipeline and to the outside. The high speed radio frequency signal may be transmitted from the interior volume to the outside or from the outside to the interior volume. The communication portal (10) may be a cylindrical- or planar-shaped body connected to the metallic pipeline. A tool located within the interior volume may transmit, receive, or transmit and receive the high speed radio frequency signal. The high speed radio frequency signal may be configured according to a 2.45 GHz standard protocol.
A method and system of high speed radio frequency communication between an outside of a metallic pipeline or vessel and an interior volume contained by the metallic pipeline or vessel includes passing a high speed radio frequency signal through a communication portal having a high speed radio frequency permittive material exposed to the interior volume of the metallic pipeline and to the outside. The high speed radio frequency signal may be transmitted from the interior volume to the outside or from the outside to the interior volume. The communication portal may be a cylindrical- or planar-shaped body connected to the metallic pipeline. A tool located within the interior volume may transmit, receive, or transmit and receive the high speed radio frequency signal. The high speed radio frequency signal may be configured according to a 2.45 GHz standard protocol.
H01Q 13/28 - Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
F16L 55/46 - Launching or retrieval of pigs or moles
F16L 55/48 - Indicating the position of the pig or mole in the pipe or conduit
F16L 41/00 - Branching pipes; Joining pipes to walls
G01M 3/00 - Investigating fluid tightness of structures
G01V 15/00 - Tags attached to, or associated with, an object, in order to enable detection of the object
H01Q 1/44 - ANTENNAS, i.e. RADIO AERIALS - Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna
H04B 7/00 - Radio transmission systems, i.e. using radiation field
H04B 13/00 - Transmission systems characterised by the medium used for transmission, not provided for in groups
A large-gap-seal ("LGS") assembly (30) and methods for its assembly and use are described. The LGS assembly (30) has an elastomer core (50) surrounded by adjoining structural segments (70). Non-adjoining gap segments (60) are located on the sidewall surfaces (55) of the elastomer core (50), with each gap segment (60) approximately centered beneath the edges of two adjoining structural segments (70). The gap segments (60) are exposed by the spaces that form between the structural segments (70) when the LGS assembly (30) is activated. Exposing the gap segments (60) rather than the elastomer core (50) protects the elastomer core (50) from damage and preserves the integrity of the seal between the isolation tool (20) and the inner wall of the pipeline.
Embodiments of a multi-diameter foam pig include a first set of radially spaced-apart, longitudinally extending, slots located toward a nose end of the pig and a second set of radially spaced-apart, longitudinally extending, slots located toward a tail end. Each set of slots ends at a band section of the pig so that, together, the two sets of slots do not traverse the entire length of the pig. A standard-length unit version of the foam pig includes only the first set of slots. A set of shorter, intermediate slots, offset in a circumferential direction from the first and second set of slots and partially overlapping those slots, may be included on the band section. Because of the slots, and because of open cell foam, the foam pig decreases or increases in diameter as it enters a different diameter run than the run just traveled.
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
F16L 55/44 - Constructional aspects of the body expandable
A large-gap-seal ("LGS") assembly (30) and methods for its assembly and use are described. The LGS assembly (30) has an elastomer core (50) surrounded by adjoining structural segments (70). Non-adjoining gap segments (60) are located on the sidewall surfaces (55) of the elastomer core (50), with each gap segment (60) approximately centered beneath the edges of two adjoining structural segments (70). The gap segments (60) are exposed by the spaces that form between the structural segments (70) when the LGS assembly (30) is activated. Exposing the gap segments (60) rather than the elastomer core (50) protects the elastomer core (50) from damage and preserves the integrity of the seal between the isolation tool (20) and the inner wall of the pipeline.
A large-gap-seal (“LGS”) assembly and methods for its assembly and use are described. The LGS assembly has an elastomer core surrounded by adjoining structural segments. Non-adjoining gap segments are located on the sidewall surfaces of the elastomer core, with each gap segment approximately centered beneath the edges of two adjoining structural segments. The gap segments are exposed by the spaces that form between the structural segments when the LGS assembly is activated. Exposing the gap segments rather than the elastomer core protects the elastomer core from damage and preserves the integrity of the seal between the isolation tool and the inner wall of the pipeline.
F16J 15/02 - Sealings between relatively-stationary surfaces
F16L 55/128 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
F16L 55/44 - Constructional aspects of the body expandable
F16J 15/06 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
F16J 15/16 - Sealings between relatively-moving surfaces
F16J 15/46 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
F16L 55/132 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
A pig trap of this disclosure may include one or more injectors or nozzles located along a sidewall of the barrel and oriented to deliver a jet of fluid toward a back side of a vertical member of a pig or tool. The nozzle may be part of an assembly that includes a longitudinally extending pipe having a flat-profile flange at an inlet end, a curved-profile flange at the nozzle end, and a bend in between the two ends. When the assembly is installed in a sidewall opening of a pig trap, the nozzle delivers a jet of fluid toward the back side of a vertical member of the pig. A leak path may be provided through flanges or formed between the sidewall opening and a periphery of the curved-profile flange. Launch forces of more than 10 to 15 times that of a conventional launcher may be achieved.
F16L 41/00 - Branching pipes; Joining pipes to walls
F16L 55/38 - Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
71.
DIRECTED JET IMPULSE PIG LAUNCHING SYSTEM AND METHOD OF ITS USE
A pig trap (10) of this disclosure may include one or more injectors or nozzles (81) located along a sidewall (12) of the barrel (1 1) and oriented to deliver a jet of fluid toward a back side (75) of a vertical member (71) of a pig or tool. The nozzle (81) may be part of an assembly that includes a longitudinally extending pipe (87) having a flat-profile flange (89) at an inlet end (99), a curved-profile flange (91) at the nozzle end, and a bend (105) in between the two ends. When the assembly is installed in a sidewall opening of a pig trap, the nozzle (81) delivers a jet of fluid toward the back side (75) of a vertical member (71) of the pig. A leak path (1 1 1) may be provided through flanges or formed between the sidewall opening and a periphery of the curved-profile flange (91). Launch forces of more than 10 to 15 times that of a conventional launcher may be achieved.
F16L 41/00 - Branching pipes; Joining pipes to walls
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
72.
DIRECTED JET IMPULSE PIG LAUNCHING SYSTEM AND METHOD OF ITS USE
A pig trap (10) of this disclosure may include one or more injectors or nozzles (81) located along a sidewall (12) of the barrel (1 1) and oriented to deliver a jet of fluid toward a back side (75) of a vertical member (71) of a pig or tool. The nozzle (81) may be part of an assembly that includes a longitudinally extending pipe (87) having a flat-profile flange (89) at an inlet end (99), a curved-profile flange (91) at the nozzle end, and a bend (105) in between the two ends. When the assembly is installed in a sidewall opening of a pig trap, the nozzle (81) delivers a jet of fluid toward the back side (75) of a vertical member (71) of the pig. A leak path (1 1 1) may be provided through flanges or formed between the sidewall opening and a periphery of the curved-profile flange (91). Launch forces of more than 10 to 15 times that of a conventional launcher may be achieved.
F16L 41/00 - Branching pipes; Joining pipes to walls
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
A metal seal fitting for use on a pipe or pipeline includes at least one metal seal ring having a C-profile which houses a spring and is arranged concentric to, and outside of, a tap diameter of the access connection. The seal ring is double-curved so that it conforms to a pipe-facing side of the fitting. A surface of the pipe is prepared to receive the seal and, as the fitting is being secured to the pipe, the seal is activated and spring-energized. In its final sealing state, the seal is not compressed passed its deformation point and maintains its spring-back capability. After the fitting is removed from the pipe, the seal may be re-used. The metal seal fitting is suited for applications requiring a high integrity seal and can be used in high pressure, high temperature, and highly corrosive environments which are not well-suited for elastomeric seals.
F16L 41/06 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
74.
Thick, long seam welding system and method for distortion control and non post weld heat treatment of pipeline hot tap fittings
A method for limiting fitting distortion when welding a fitting to an in-service pipeline—where the fitting includes a thick, longitudinally extending, seam located between fitting halves—involves welding, on each side of the fitting, a middle third section of the seam in a pyramid-like fashion using an inward progression starting from an end of the middle third section along a profile of a seam bevel, and welding outer third sections of the seam using an outward progression from an end adjacent to the middle third section along a profile of the seam bevel. The welding of each of the three sections per side includes a temper bead welding technique of at least two layers to provide stress relief in lieu of traditional post weld heat treatment.
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
F16L 55/18 - Appliances for use in repairing pipes
F16L 41/04 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
B23K 37/04 - Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the other main groups of this subclass for holding or positioning work
F16L 41/06 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
A method for limiting fitting distortion when welding a fitting (10) to an in-service pipeline where the fitting (10) includes a thick, longitudinally extending, seam located between fitting halves involves welding, on each side of the fitting, a middle third section (31) of the seam in a pyramid-like fashion using an inward progression starting from an end of the middle third section (31) along a profile of a seam bevel (19), and welding outer third sections (37) of the seam (20) using an outward progression from an end adjacent to the middle third section (31) along a profile of the seam bevel (19). The welding of each of the three sections per side includes a temper bead welding technique of at least two layers to provide stress relief in lieu of traditional post weld heat treatment.
B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
B23K 9/035 - Seam welding; Backing means; Inserts with backing means disposed under the seam
B23K 33/00 - Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
76.
THICK, LONG SEAM WELDING SYSTEM AND METHOD FOR DISTORTION CONTROL AND NON POST WELD HEAT TREATMENT OF PIPELINE HOT TAP FITTINGS
A method for limiting fitting distortion when welding a fitting (10) to an in-service pipeline— where the fitting (10) includes a thick, longitudinally extending, seam located between fitting halves— involves welding, on each side of the fitting, a middle third section (31) of the seam in a pyramid-like fashion using an inward progression starting from an end of the middle third section (31) along a profile of a seam bevel (19), and welding outer third sections (37) of the seam (20) using an outward progression from an end adjacent to the middle third section (31) along a profile of the seam bevel (19). The welding of each of the three sections per side includes a temper bead welding technique of at least two layers to provide stress relief in lieu of traditional post weld heat treatment.
B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
B23K 9/035 - Seam welding; Backing means; Inserts with backing means disposed under the seam
A system and method for non-destructive, in situ, positive material identification of a pipe selects a plurality of test areas that are separated axially and circumferentially from one another and then polishes a portion of each test area. Within each polished area, a non-destructive test device is used to collect mechanical property data and another non-destructive test device is used to collect chemical property data. An overall mean for the mechanical property data, and for the chemical property data, is calculated using at least two data collection runs. The means are compared to a known material standard to determine, at a high level of confidence, ultimate yield strength and ultimate tensile strength within +/−10%, a carbon percentage within +/−25%, and a manganese percentage within +/−20% of a known material standard.
This inventions relates to a plugging machine and a rigid tube provided with a stationary disc integral with the bottom of the tube and oriented almost orthogonal to the tube, with a movable disc paired with the stationary disc. A sealing ring of a resilient material is located between the discs and compressed when the movable disc is pressed against the stationary disc to adhere to an inner surface of the pipeline. The sealing ring is coaxial with respect to the pipeline. The movement of the movable disc is determined by raising or lowering a control rod within the tube by means of sloping sliders made in the lower portion of the rod which engage in respective grooves, likewise sloping, made in an axial shank associated with the movable disc and sliding inside an axial opening of the stationary disc. A component of a force is generated which is parallel to the axis of the discs. The axis is raised or lowered by rotation of a threaded ring engaging in a threading mate at the top of the rod.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16K 7/20 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with a compressible solid closure member
F16L 55/124 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
Embodiments of a multi-diameter foam pig (10) include a first set of radially spaced-apart, longitudinally extending, slots (11A) located toward a nose end (13) of the pig and a second set of radially spaced-apart, longitudinally extending, slots (11B) located toward a tail end (23). Each set of slots ends at a band section (15A; 15B) of the pig so that, together, the two sets of slots do not traverse the entire length of the pig. A standard-length unit version of the foam pig includes only the first set of slots (11A). A set of shorter, intermediate slots, offset in a circumferential direction from the first and second set of slots and partially overlapping those slots, may be included on the band section. Because of the slots, and because of open cell foam, the foam pig decreases or increases in diameter as it enters a different diameter run than the run just traveled.
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
80.
SYSTEM AND METHOD OF PREVENTING FLOW BLOCKING WHEN USING AN AUTOMATED PIG LAUNCHER
A flow assurance system and method includes procedures to query current valve states and determine the likely effect of new valve states on product flow when using an automated pig launcher. The system and method allows for modulating the mainline bypass valve, kicker valve, and isolation valve between fully opened and fully closed states; prevents flow blocking of the pipeline during this modulation; enables new and different, as well as a broader range of, pig launching options for an automatic pig launcher; and integrates with existing automatic pig launchers.
This inventions relates to a plugging machine (100) and a rigid tube (2) provided with a stationary disc (3) integral with the bottom of the tube (2) and oriented almost orthogonal to the tube (2), with a movable disc (4) paired with the stationary disc (3). A dealing ring (50) of a resilient material is located between the discs (3, 4) and compressed when the movable disc (4) is pressed against the stationary disc (3) to adhere to an inner surface of the pipeline (200). The sealing ring (50) is coaxial with respect to the pipeline (200). The movement of the movable disc (4) is determined by raising or lowering a control rod (6) within the tube (2) by means of sloping sliders (70) made in the lower portion of the rod (6) which engage in respective grooves (44), likewise sloping, made in an axial shank (40) associated with the movable disc (4) and sliding inside an axial opening of the stationary disc (3). A component of a force is generated which is parallel to the axis of the discs (3,4). The axis is raised or lowered by rotation of a threaded ring (82) engaging in a threading mate at the top (6A) of the rod (6).
F16L 55/124 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
This inventions relates to a plugging machine and a rigid tube provided with a stationary disc integral with the bottom of the tube and oriented almost orthogonal to the tube, with a movable disc paired with the stationary disc. A sealing ring of a resilient material is located between the discs and compressed when the movable disc is pressed against the stationary disc to adhere to an inner surface of the pipeline. The sealing ring is coaxial with respect to the pipeline. The movement of the movable disc is determined by raising or lowering a control rod within the tube by means of sloping sliders made in the lower portion of the rod which engage in respective grooves, likewise sloping, made in an axial shank associated with the movable disc and sliding inside an axial opening of the stationary disc. A component of a force is generated which is parallel to the axis of the discs. The axis is raised or lowered by rotation of a threaded ring engaging in a threading mate at the top of the rod.
F16L 55/10 - Means for stopping flow in pipes or hoses
F16K 7/20 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with a compressible solid closure member
F16L 55/124 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
83.
System and method of preventing flow blocking when using an automated pig launcher
A flow assurance system and method includes procedures to query current valve states and determine the likely effect of new valve states on product flow when using an automated pig launcher. The system and method allows for modulating the mainline bypass valve, kicker valve, and isolation valve between fully opened and fully closed states; prevents flow blocking of the pipeline during this modulation; enables new and different, as well as a broader range of, pig launching options for an automatic pig launcher; and integrates with existing automatic pig launchers.
A pig launcher/receiver includes a fluid distribution grid arranged above a floor of the pig launcher/receiver's barrel to define a fluid chamber between the floor and the fluid distribution grid. The distribution grid has a plurality of ports arranged to form jets that discharge at least a portion of the fluid which enters the fluid chamber. A predetermined number of the ports are inclined relative to vertical and in a direction opposite a closure door of the barrel. The fluid distribution grid, which is preferably semi-circular shaped, can be a permanent weldment, bolted on, or removable. When used in launching a pig, the ports provide a differential pressure that lifts the pig and overcomes friction as the pig moves forward. Because a number of the ports are blocked by the sealing elements (cup or disc) of the pipeline pig, the number of pigs residing in the launcher/receiver can be determined.
B08B 9/027 - Cleaning the internal surfaces; Removal of blockages
B08B 9/00 - Cleaning hollow articles by methods or apparatus specially adapted thereto
F16L 55/46 - Launching or retrieval of pigs or moles
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
A pig launcher/receiver includes a fluid distribution grid arranged above a floor of the pig launcher/receiver's barrel to define a fluid chamber between the floor and the fluid distribution grid. The distribution grid has a plurality of ports arranged to form jets that discharge at least a portion of the fluid which enters the fluid chamber. A predetermined number of the ports are inclined relative to vertical and in a direction opposite a closure door of the barrel. The fluid distribution grid, which is preferably semi-circular shaped, can be a permanent weldment, bolted on, or removable. When used in launching a pig, the ports provide a differential pressure that lifts the pig and overcomes friction as the pig moves forward. Because a number of the ports are blocked by the sealing elements (cup or disc) of the pipeline pig, the number of pigs residing in the launcher/receiver can be determined.
A pipeline pig (10) that can traverse dual- or multiple-diameter pipes or pipelines has collapsible and expandable sealing elements (20) that support the pig, provide a sliding (dynamic) seal with the pipe wall, and maintain the necessary pressure for driving or cleaning as the elements collapse and expand. The sealing elements (20) each have an internal cavity (21) sized to house a first volume of a fluid and a reservoir (20) sized to house a second volume of the fluid. The cavity (21) and reservoir (29) are arranged so that a portion of the volumes of the fluid can move between each. An accumulator (30) maintains a pressure of the first and second volumes of the fluid so that regardless of the sealing element's current size, or whether the element (20) is transitioning between sizes, the element (20) can maintain a sliding seal engagement with the pipe wall (W) and perform the primary function of driving or cleaning (or both).
F16L 55/44 - Constructional aspects of the body expandable
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
87.
PIPELINE PIG WITH HYDRAULICALLY BALANCED COLLAPSIBLE SEALING ELEMENTS
A pipeline pig (10) that can traverse dual- or multiple-diameter pipes or pipelines has collapsible and expandable sealing elements (20) that support the pig, provide a sliding (dynamic) seal with the pipe wall, and maintain the necessary pressure for driving or cleaning as the elements collapse and expand. The sealing elements (20) each have an internal cavity (21) sized to house a first volume of a fluid and a reservoir (20) sized to house a second volume of the fluid. The cavity (21) and reservoir (29) are arranged so that a portion of the volumes of the fluid can move between each. An accumulator (30) maintains a pressure of the first and second volumes of the fluid so that regardless of the sealing element's current size, or whether the element (20) is transitioning between sizes, the element (20) can maintain a sliding seal engagement with the pipe wall (W) and perform the primary function of driving or cleaning (or both).
A pipeline pig that can traverse dual- or multiple-diameter pipes or pipelines has collapsible and expandable sealing elements that support the pig, provide a sliding (dynamic) seal with the pipe wall, and maintain the necessary pressure for driving or cleaning as the elements collapse and expand. The sealing elements each have an internal cavity sized to house a first volume of a fluid and a reservoir sized to house a second volume of the fluid. The cavity and reservoir are arranged so that a portion of the volumes of the fluid can move between each. An accumulator maintains a pressure of the first and second volumes of the fluid so that regardless of the sealing element's current size, or whether the element is transitioning between sizes, the element can maintain a sliding seal engagement with the pipe wall and perform the primary function of driving or cleaning (or both).
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
A pipeline pig signal includes sealing means located within a lower end of the trigger cavity of the signal which prevents pipeline debris from entering the trigger cavity. The sealing means moves between a first sealing position and a second sealing position in response to the trigger moving between a non-triggered and triggered position. The sealing means may be a polymer boot, a filter arrangement, a sliding piston arrangement, or a sliding shelf arrangement.
A pipeline debris shearing device includes a forwardly positioned, self sharpening, wear compensating, diameter conforming elastomeric member that forms a peeling edge having a negative rake angle to peel away debris from the internal wall of a pipeline. The peeling edge is formed at the point of meeting between a concave-shaped, curved forward face surface and a substantially straight outer peripheral surface. Radial slots may be provided to lessen the force being exerted on the peeling edge and provide for bypass flow to carry away debris removed by the peeling edge. Spaced-apart narrow stripper teeth may be added to help in removing harder deposits of debris. The peeling edge may be arranged substantially perpendicular the central longitudinal axis of the pipeline pig or arranged oblique to it. Further, the peeling edge may spiral about at least a portion of the pipeline pig.
B08B 9/04 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
B08B 9/055 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
A metal seal fitting (20) for use on a pipe or pipeline includes at least one metal seal ring (30/40) having a C-profile which houses a spring (31/42) and is arranged concentric to, and outside of, a tap diameter (27) of the access connection. The seal ring (30/40) is double-curved so that it conforms to a pipe-facing side (25) of the fitting (20). A surface (S) of the pipe is prepared to receive the seal (30/40) and, as the fitting (20) is being secured to the pipe, the seal (30/40) is activated and spring- energized. In its final sealing state, the seal (30/40) is not compressed passed its deformation point and maintains its spring-back capability. After the fitting (20) is removed from the pipe, the seal (30/40) may be re-used. The metal seal fitting (20) is suited for applications requiring a high integrity seal and can be used in high pressure, high temperature, and highly corrosive environments which are not well-suited for elastomeric seals.
F16J 15/08 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
F16L 41/06 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
A metal seal fitting for use on a pipe or pipeline includes at least one metal seal ring having a C-profile which houses a spring and is arranged concentric to, and outside of, a tap diameter of the access connection. The seal ring is double-curved so that it conforms to a pipe-facing side of the fitting. A surface of the pipe is prepared to receive the seal and, as the fitting is being secured to the pipe, the seal is activated and spring-energized. In its final sealing state, the seal is not compressed passed its deformation point and maintains its spring-back capability. After the fitting is removed from the pipe, the seal may be re-used. The metal seal fitting is suited for applications requiring a high integrity seal and can be used in high pressure, high temperature, and highly corrosive environments which are not well-suited for elastomeric seals.
F16L 41/06 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
93.
System and method for non-destructive, in situ, positive material identification of a pipe
A system and method for non-destructive, in situ, positive material identification of a pipe selects three test areas that are separated axially and circumferentially from one another and then polishes a portion of each test area. Within each polished area, a non-destructive test device is used to collect mechanical property data and another non-destructive test device is used to collect chemical property data. An overall mean for the mechanical property data, and for the chemical property data, is calculated using at least two data collection runs. The means are compared to a known material standard to determine, at a high level of confidence, ultimate yield strength and ultimate tensile strength within +/−10%, a carbon percentage within +/−25%, and a manganese percentage within +/−20% of a known material standard.
A system and method for non-destructive, in situ, positive material identification of a pipe selects three test areas that are separated axially and circumferentially from one another and then polishes a portion of each test area. Within each polished area, a non-destructive test device is used to collect mechanical property data and another non-destructive test device is used to collect chemical property data. An overall mean for the mechanical property data, and for the chemical property data, is calculated using at least two data collection runs. The means are compared to a known material standard to determine, at a high level of confidence, ultimate yield strength and ultimate tensile strength within +/- 10%, a carbon percentage within +/- 25%, and a manganese percentage within +/- 20% of a known material standard.
A system and method for in situ, positive material identification of a pipe selects three test areas that are separated axially and circumferentially from one another and then polishes a portion of each test area. Within each polished area, a ball indenter is used to collect mechanical property data and an optical emission spectrometer is used to collect chemical property data. An overall mean for the mechanical property data, and for the chemical property data, is calculated using at least two data collection runs. The means are compared to a known material standard to determine, at a high level of confidence, ultimate yield strength and ultimate tensile strength within +/- 10%, a carbon percentage within +/- 25%, and a manganese percentage within +/- 20% of a known material standard.
An isolation tool (10) for temporarily isolating a section of pipeline has foldable semi-circular sealing element halves (17, 37) that, when unfolded, combine to form a primary and secondary sealing element (61, 67). The element halves (17, 37) unfold by rotating an inner bar (11) about the axis of an outer bar (31). A bleed hole (71) permits any fluid which leaks past the primary sealing element (61) and into the annular space between the sealing elements (61, 67) to enter a longitudinal bleed passageway (73) located within the tool (10) itself, thereby eliminating the need for a bleed port or valve to be welded onto the pipeline. The tool (10), which is pressure balanced, is well adapted for use in applications in which the lateral access opening is significantly smaller in diameter than the pipe diameter.
A pipeline pig signal includes sealing means located within a lower end of the trigger cavity of the signal which prevents pipeline debris from entering the trigger cavity. The sealing means moves between a first sealing position and a second sealing position in response to the trigger moving between a non-triggered and triggered position. The sealing means may be a polymer boot, a filter arrangement, a sliding piston arrangement, or a sliding shelf arrangement.
A pipeline pig signal (20) includes sealing means (80) located within a lower end of the trigger cavity (28) of the signal (20) which prevents pipeline debris from entering the trigger cavity (28). The sealing means (80) moves between a first sealing position and a second sealing position in response to the trigger moving between a non-triggered and triggered position. The sealing means (80) may be a polymer boot, a filter arrangement, a sliding piston arrangement, or a sliding shelf arrangement.
ABSTRACT OF THE DISCLOSURE A pipeline pig signal (20) includes sealing means (80) located within a lower end of the trigger cavity (28) of the signal (20) which prevents pipeline debris from entering the trigger cavity (28). The sealing means (80) moves between a first sealing position and a second sealing position in response to the trigger moving between a non-triggered and triggered position. The sealing means (80) may be a polymer boot, a filter arrangement, a sliding piston arrangement, or a sliding shelf arrangement. Date Recue/Date Received 2020-11-09
An improved machine-actuated removable safety closure made according to this invention includes a latch and central hub combination which permits a plug holder to self-align with the drive holes of the closure's cam plate so that an operator can retrieve the closure without having to lean directly over it. A bypass valve interferes with the cam plate when the bypass is in its closed position. This interference prevents the cam plate from actuating the locking leaves. Anti-rotation slots located on the plug body and the flange of the tubular member interlock and prevent rotation of the plug body beyond a certain rotational window during the setting process and when the plug body is in its final sealing position. The latch, along with means to secure the plug holder to the boring bar, allows the holder to be retrieved from the set plug.
F16L 55/136 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
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