公开(公告)号：US20240337168A1

公开(公告)日：2024-10-10

申请号：US18297467

申请日：2023-04-07

申请人： SAUDI ARABIAN OIL COMPANY

发明人： Abdullah K. Al-Ghannam ,  Sanjiv Kumar

IPC分类号： E21B34/06 ,  E21B33/129

CPC分类号： E21B33/12 ,  E21B33/1293 ,  E21B33/134 ,  E21B34/063

摘要： A system includes a bridge plug for isolating a section of a wellbore. The bridge plug includes a cylindrical body and an engagement assembly mounted to an outer diameter of the cylindrical body and selectively extendible between a recessed position and an extended position. The system further includes a plug assembly for regulating flow through the cylindrical body of the bridge plug. The plug assembly includes a housing connected to the cylindrical body of the bridge plug, a frangible component that creates a seal within the housing, and a pin disposed within the housing and designed to fracture the frangible component.

公开(公告)号：US20240262049A1

公开(公告)日：2024-08-08

申请号：US18164497

申请日：2023-02-03

申请人： CCDI Composites, Inc.

发明人： Steven Koon Hung Sim ,  Richard Craig Olson ,  Angel Barragan

IPC分类号： B29C70/32 ,  E21B33/134

CPC分类号： B29C70/32 ,  E21B33/134 ,  B29L2031/75 ,  F16C2220/28

摘要： A composite shaft or rod formed by filament winding. The composite shaft is a solid shaft and the filament winding does not involve a mandrel. A filament core can be suspended between rotatable spindles and the filament materials can be laid directly onto the filament spindle, without any mandrel. A plurality of payout eyes can be used to simultaneously lay filament materials onto the filament core. A bridge plug can be formed with the solid composite shaft located within the bridge plug shell of the bridge plug.

公开(公告)号：US20240159124A1

公开(公告)日：2024-05-16

申请号：US18453025

申请日：2023-08-21

申请人： Schlumberger Technology Corporation

发明人： Terizhandur S. Ramakrishnan ,  Hua Zhang ,  Quincy K. Elias ,  Albert Perez

IPC分类号： E21B33/13 ,  C09K8/42 ,  C09K8/46 ,  C22C12/00 ,  E21B29/12 ,  E21B33/12 ,  E21B33/134 ,  E21B33/138 ,  E21B33/14 ,  G01N33/2028

CPC分类号： E21B33/13 ,  C09K8/426 ,  C09K8/46 ,  C22C12/00 ,  E21B29/12 ,  E21B33/12 ,  E21B33/1208 ,  E21B33/134 ,  E21B33/138 ,  E21B33/143 ,  G01N33/2028

摘要： A wellbore is plugged using a bismuth alloy. The wellbore is arranged so that a liquid bismuth alloy sets with an excess pressure of the plug relative to the borehole fluid pressure along a desired seal height distance.

公开(公告)号：US11946331B2

公开(公告)日：2024-04-02

申请号：US17421665

申请日：2020-01-10

申请人： ISOL8 (HOLDINGS) LIMITED

发明人： Andrew Louden ,  William Edward Lowry

IPC分类号： E21B33/12 ,  E21B33/134 ,  E21B36/00 ,  C09K8/42

CPC分类号： E21B33/1204 ,  E21B33/12 ,  E21B33/1212 ,  E21B33/134 ,  E21B36/00 ,  C09K8/426

摘要： A method of sealing a subsurface bore comprises: locating a volume of thermite in the bore; locating a volume of alloy in the bore with the thermite; initiating reaction of the thermite to heat the alloy; and bringing the alloy to above the melting point of the alloy whereby the alloy flows and occludes the bore. The thermite may retain its initial form during or following reaction or may partially fluidise. The thermite may react to provide a platform that at least partially occludes the bore. The alloy may flow over a surface of the thermite.

公开(公告)号：US11879303B2

公开(公告)日：2024-01-23

申请号：US17275509

申请日：2019-10-25

申请人： Gregoire Max Jacob

发明人： Gregoire Max Jacob

IPC分类号： E21B33/134 ,  E21B19/24 ,  E21B23/01 ,  E21B23/06 ,  E21B33/124 ,  E21B33/128 ,  E21B33/129 ,  E21B23/04

CPC分类号： E21B33/134 ,  E21B19/24 ,  E21B23/01 ,  E21B23/06 ,  E21B33/124 ,  E21B33/128 ,  E21B33/129 ,  E21B33/1285 ,  E21B33/1293 ,  E21B23/04 ,  E21B23/0411 ,  E21B23/0413 ,  E21B33/1292 ,  E21B2200/08

摘要： A plug assembly includes an expandable assembly and a locking ring. The expandable assembly is adapted to be deformed radially over the locking ring. The locking ring has a stopping inner surface. The plug assembly is used with an untethered object, which has an outer surface adapted to couple with the stopping inner surface of the locking ring. The untethered object is also adapted to contact an inner surface of the plug assembly and, using well fluid pressure, to apply forces to the plug assembly. The forces cause the longitudinal movement of the untethered object while contacting the inner surface of the plug assembly until the untethered object contacts the stopping inner surface of the locking ring.

公开(公告)号：US11788375B2

公开(公告)日：2023-10-17

申请号：US16882831

申请日：2020-05-26

申请人： Schlumberger Technology Corporation

发明人： Robert Matthew Graham

IPC分类号： E21B33/12 ,  E21B43/26 ,  E21B33/134 ,  E21B33/128 ,  E21B33/129

CPC分类号： E21B33/1216 ,  E21B33/128 ,  E21B33/134 ,  E21B43/261 ,  E21B33/1208 ,  E21B33/129

摘要： A backup ring includes a plurality of segments defined by a plurality of slots, wherein each segment is defined by a sequential pair of the plurality of slots, and a resilient matrix material that at least partially fills each slot of the plurality of slots.

公开(公告)号：US11761296B2

公开(公告)日：2023-09-19

申请号：US17185563

申请日：2021-02-25

申请人： Wenhui Jiang

发明人： Wenhui Jiang

IPC分类号： E21B33/134 ,  E21B29/02 ,  C08K3/14 ,  C22C21/00 ,  C22C1/10 ,  C22C1/02

CPC分类号： E21B33/134 ,  C08K3/14 ,  C22C1/026 ,  C22C1/1068 ,  C22C21/00 ,  E21B29/02 ,  C08K2201/018 ,  E21B2200/08

摘要： A component of a downhole tool utilized in oil and natural gas exploration and production comprises inorganic hydrolysable compound-containing materials. The inorganic hydrolysable compounds grant the component the degradability/dissolution in aqueous environment. The inorganic hydrolysable compounds include, but not are limited to, hydrolysable carbides, nitrides, and sulfides, such as aluminum carbide (Al4C3), calcium carbide (CaC2), magnesium carbide (Mg2C3 or MgCl2), manganese carbide (Mn3C), aluminum nitride (AlN), calcium nitride (Ca3N2), magnesium nitride (Mg3N2), aluminum sulfide (Al2S3), aluminum magnesium carbide (Al2MgCl2), and aluminum zinc carbide (Al4Zn2C3).

公开(公告)号：US11753897B2

公开(公告)日：2023-09-12

申请号：US16304262

申请日：2017-05-24

申请人： BiSN Tec Ltd.

发明人： Paul Carragher ,  Sylvain Bedouet

IPC分类号： E21B33/13 ,  E21B36/00 ,  E21B33/134

CPC分类号： E21B33/13 ,  E21B33/134 ,  E21B36/00 ,  E21B36/008

摘要： The present invention provides a chemical heater for use in down-hole operations together with methods for operating such in oil/gas wells. The chemical heater comprises a heater body (1) housing a chemical reaction heat source material (2). The heater body (1) has a leading end that, in use, is deployed down-hole first. The heater is provided with ignition means (3), located in a heating zone proximal to the leading end of the heater body, for triggering a chemical reaction in the chemical reaction heat source material located in the heating zone (4, 4a). The heater is further provided with an actuator (5,6) housed within the heater body (1) and configured to urge the chemical reaction heat source material (2) towards the heating zone so as to generate a focused heating pattern.

公开(公告)号：US20230250704A1

公开(公告)日：2023-08-10

申请号：US18129459

申请日：2023-03-31

申请人： Vertice Oil Tools, Inc.

发明人： MIKE LO ,  MOHAMED SARAYA

IPC分类号： E21B33/134 ,  E21B43/26

CPC分类号： E21B33/134 ,  E21B43/26

摘要： Utilizing threads and coupling mechanisms to selectively secure slips and cones directly to a mandrel, wherein a distal end of the lower slips includes projections configured to interface with depressions within a cap of the frac plug to limit the relative rotation of the slips.

公开(公告)号：US20190249516A1

公开(公告)日：2019-08-15

申请号：US15995769

申请日：2018-06-01

申请人： Parsley Energy, Inc.

发明人： Braden L. RIHA ,  Landon W. MARTIN ,  Duncan R. HARVEY ,  Alfred HERRERA

IPC分类号： E21B33/138 ,  E21B33/134 ,  C09K8/72 ,  E21B43/26

CPC分类号： E21B33/138 ,  C09K8/725 ,  E21B33/134 ,  E21B43/26

摘要： Composite plug drill out. At least some example embodiments are methods including: drilling out a first composite plug which creates plug parts and opens a first segment having a first set of perforations through the casing; pumping diverter agent into the first segment to fluidly isolate a formation surrounding the wellbore; forcing plug parts and sand from the first segment to the surface; drilling out a second composite plug which creates plug parts and opens the second segment having a second set of perforations through the casing; pumping diverter agent into the second segment to fluidly isolate the second set of perforations against flow into the formation; and forcing plug parts and sand from the second segment to the surface.