公开(公告)号：WO2023018931A1

公开(公告)日：2023-02-16

申请号：PCT/US2022/040152

申请日：2022-08-12

申请人： SCHLUMBERGER TECHNOLOGY CORPORATION ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V.

发明人： LOWE, Erick ,  PRISBELL, Andrew ,  WALSE, Bhagyashri ,  GARZA, Jay

IPC分类号： E21B43/1185 ,  E21B43/117 ,  F42D1/045

摘要： A perforation tool, and a bulkhead member for a perforation tool, are disclosed. The perforation tool has a loading tube, an initiator module, and a bulkhead member connected between the loading tube and the initiator module. The bulkhead member has a hollow body member with a central transverse plate having a central bore through the transverse plate along a longitudinal axis of the body member and an electrical conductor disposed in the central bore, the electrical conductor having a pin connection at a first end thereof and a box connection at a second end thereof.

公开(公告)号：WO2022115389A1

公开(公告)日：2022-06-02

申请号：PCT/US2021/060380

申请日：2021-11-22

申请人： OWEN OIL TOOLS LP

发明人： GARTZ, Jeffrey ,  LAGRANGE, Timothy, E. ,  VASS, Bradley

IPC分类号： E21B43/1185 ,  E21B17/07 ,  E21B43/14

摘要： An apparatus for perforating a wellbore includes a plurality of perforator units that includes a first perforator unit and a second perforator unit; and a signal transfer module connecting the first perforator unit to the second perforator unit. The signal transfer module includes an enclosure having a bore, an input end, and an output end, an initiator positioned adjacent to the first perforator unit and at least partially in the enclosure, an initiator, an igniter, a fuse, and an isolator. The initiator generates a shock wave when initiated. The igniter is positioned in the enclosure and generates a low order output upon receiving the shock wave generated by the initiator. The fuse is positioned in the enclosure and is initiated by the low order output of the igniter. The fuse outputs a high order output from the output end of the enclosure. The isolator secures the fuse body in the bore of the enclosure. The isolator includes a shock attenuator. Only the shock attenuator physically connects the fuse to the enclosure.

公开(公告)号：WO2022093913A1

公开(公告)日：2022-05-05

申请号：PCT/US2021/056785

申请日：2021-10-27

申请人： PUNDOLE, Faraidoon

发明人： PUNDOLE, Faraidoon

IPC分类号： E21B43/1185 ,  F42B3/12 ,  F42B3/13 ,  F42B3/18 ,  F42D1/05 ,  F42D3/00 ,  H04L27/10 ,  E21B47/12

摘要： Aspects of the disclosure provide for a fuzing device. In some examples, the fuzing device includes an energy bridge, an uplink controller, a downlink controller, and a microcontroller. The microcontroller is coupled to the energy bridge, the uplink controller, and the downlink controller. The microcontroller is configured to receive downlink messages from a control unit via the downlink controller, selectively power the energy bridge according to at least some of the downlink messages to initiate a controlled energetic reaction, and send uplink messages to the control unit via the uplink controller.

公开(公告)号：WO2021262200A1

公开(公告)日：2021-12-30

申请号：PCT/US2020/040306

申请日：2020-06-30

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： FRIPP, Michael, Linley ,  CANNING, Sean, C.

IPC分类号： E21B47/10 ,  E21B43/267 ,  E21B43/116 ,  E21B33/12 ,  E21B47/06 ,  E21B23/06 ,  E21B2200/08 ,  E21B23/04 ,  E21B43/1185 ,  E21B43/26 ,  E21B47/07 ,  E21B47/135

摘要： Systems and methods are provided for a fracturing process and in particular, to providing a fracturing system including a fracturing plug configured to seal a wellbore to prevent fluid from passing through the wellbore, a gun configured to generate a perforation cluster, wherein the perforation cluster allows fluid exchange between the wellbore and a subterranean formation, a setting tool configured to initiate setting of the fracturing plug and firing of the gun to generate the perforation cluster, and a sensor configured to measure parameters proximate to the wellbore, wherein the sensor is retrievable after a fracturing process, measuring the parameters proximate to the wellbore with the sensor and transmitting the parameters measured by the sensor to an operator.

公开(公告)号：WO2021262199A1

公开(公告)日：2021-12-30

申请号：PCT/US2020/040152

申请日：2020-06-29

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： LUDWIG, Wesley Neil

IPC分类号： E21B43/116 ,  E21B43/1185 ,  E21B33/12 ,  E21B17/07 ,  E21B43/117 ,  E21B43/119 ,  E21B43/1195 ,  F42B3/02 ,  F42D5/00

摘要： A perforating gun apparatus comprising a bulkhead connector located between an upper gun body thread and lower gun body thread. The bulkhead connector has seals in sealing arrangement with an upper gun body and a lower gun body with a support sleeve in contact with an inner groove support shoulder on the lower gun body. The support sleeve is radially deformable into the inner groove by a shockwave produced by firing the charges in the lower gun section. The deformation of the support sleeve attenuates the impact of the shockwave on the threaded connection. The bulkhead connector isolates the threaded connection from the pressure spike. The deformed support sleeve attenuates the shockwave from the charges firing in the upper gun section and transfers the resultant force away from the threaded connection.

公开(公告)号：WO2021116336A1

公开(公告)日：2021-06-17

申请号：PCT/EP2020/085622

申请日：2020-12-10

申请人： DYNAENERGETICS EUROPE GMBH

发明人： EITSCHBERGER, Christian ,  THIELTGES, Sascha ,  RIESEN, Dimitri

IPC分类号： E21B43/1185 ,  F42B3/08

摘要： An initiator head may include a housing extending in an axial direction, a circuit board provided in an interior space of the housing, a line-in terminal provided on a first side of the housing in the axial direction and accessible from an exterior of the housing, and a fuse displaced from the circuit board in the axial direction. A thickness direction of the circuit board may be substantially parallel with the axial direction. The line-in terminal may be in electrical communication with the circuit board. The fuse may be in electrical communication with the circuit board. The circuit board may be configured to activate the fuse in response to a control signal received at the line-in terminal.

公开(公告)号：WO2020176075A1

公开(公告)日：2020-09-03

申请号：PCT/US2019/019568

申请日：2019-02-26

申请人： GOYENECHE, Sergio F.

发明人： GOYENECHE, Sergio F.

IPC分类号： E21B43/117 ,  E21B43/1185

摘要： A perforation gun assembly comprising a plurality of guns with pin and box connections for direct connections therebetween. Connections between guns utilize T-shaped insulated feed-thru, reduced milling of casing for charge carrier alignment, strategic placement / duplication of O-ring usage, and bifurcated blast protectors provide extensive flooding protection during firing sequences. Sealed end caps, blast dividers, and strategic O-ring placement provide protection of charge carrier assemblies from moisture and physical damage prior to arming and assembly o the perf gun string.

公开(公告)号：WO2020163862A1

公开(公告)日：2020-08-13

申请号：PCT/US2020/017502

申请日：2020-02-10

申请人： G&H DIVERSIFIED MANUFACTURING LP

发明人： KNIGHT, Benjamin, Vascal ,  KASH, James, Edward ,  WELLS, Joe, Noel

IPC分类号： E21B43/117 ,  E21B43/1185

摘要： A tool string includes a perforating gun including a signal conductor, a sub that includes a sub housing including a first bulkhead receptacle extending into the sub housing from a first end, a second bulkhead receptacle extending into the sub housing from a second end, and a switch receptacle positioned between the first bulkhead receptacle and the second bulkhead receptacle, a first bulkhead connector, and a second bulkhead connector, and a switch positionable in the switch receptacle, wherein the switch is configured to establish an electrical connection with the signal conductor of the perforating gun in response to coupling of the sub with the perforating gun, and wherein the switch receptacle is isolated from fluid pressure external of the switch receptacle when the first bulkhead connector is positioned in the first bulkhead receptacle and the second bulkhead connector is positioned in the second bulkhead receptacle.

公开(公告)号：WO2019246272A1

公开(公告)日：2019-12-26

申请号：PCT/US2019/038002

申请日：2019-06-19

申请人： SCHLUMBERGER TECHNOLOGY CORPORATION ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V.

发明人： PFUTZNER, Harold ,  AIDAGULOV, Gallyam ,  BADRI, Mohammed

IPC分类号： E21B43/263 ,  E21B43/1185

摘要： A downhole tool includes a metal carrier tool body having at least one cavity formed in and opening to an outer surface defining an outer diameter of the metal carrier tool body and one or more explosive notching elements mounted in the at least one cavity, wherein the one or more explosive notching elements are configured to install notches on a surface of an uncased formation.

公开(公告)号：WO2019099026A1

公开(公告)日：2019-05-23

申请号：PCT/US2017/062310

申请日：2017-11-17

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： ROBEY, Richard E. ,  MACGILLIVRAY, Joseph T. ,  HARRINGTON, Nicholas G. ,  METZGER, Jason P.

IPC分类号： E21B43/117 ,  E21B43/1185

摘要： A method of perforating a subterranean formation may comprise: inserting into a wellbore a perforating gun assembly comprising: a first gun assembly comprising a first perforating explosive and a first ballistic transfer element; a transfer assembly comprising a second ballistic transfer element; and a second gun assembly comprising a second perforating explosive, wherein the first gun assembly and the second gun assembly are separated from the transfer assembly by a discontinuity; detonating the first perforating explosive; propagating a ballistic signal from the first gun assembly, across the discontinuity, to the transfer assembly; propagating a ballistic signal though the transfer assembly to the second ballistic transfer element; propagating a ballistic signal from the transfer assembly, across the discontinuity, to the second gun assembly; and detonating the second perforating explosive.