公开(公告)号：EP1851500B1

公开(公告)日：2009-04-01

申请号：EP06710959.5

申请日：2006-02-23

申请人： Armaments Corporation of South Africa Limited

发明人： KÖNIG, Pieter Johann

IPC分类号： F42B1/02 ,  F42B12/18 ,  E21B43/118

CPC分类号： F42B12/18 ,  E21B43/118 ,  F42B1/02

公开(公告)号：EP1851500A1

公开(公告)日：2007-11-07

申请号：EP06710959.5

申请日：2006-02-23

申请人： Armaments Corporation of South Africa Limited

发明人： KÖNIG, Pieter Johann

IPC分类号： F42B1/02 ,  F42B12/18 ,  E21B43/118

CPC分类号： F42B12/18 ,  E21B43/118 ,  F42B1/02

摘要： A shaped charge assembly (10) comprises a housing (20), first shaped charge (24), a wave shaping relay charge (44) and a second shaped charge (30) located in the housing. The assembly (10) is configured such that a first active element formed by initiation of the first shaped charge (24) causes detonation of the wave shaping relay charge (44), which in turn causes initiation of the second shaped charge (30) to form a second active element. The first active element moves beyond a second end (25) of the housing to cause damage of a first kind to an external target and the second active element also moves beyond the second end to cause damage of a second kind to the target.

公开(公告)号：EP3245381A1

公开(公告)日：2017-11-22

申请号：EP16737957.7

申请日：2016-01-15

申请人： GeoDynamics, Inc.

发明人： HARDESTY, John, T. ,  CLARK, Nathan, G. ,  ROLLINS, James, A. ,  WESSON, David, S.

IPC分类号： E21B43/119 ,  E21B43/118 ,  E21B43/263

CPC分类号： E21B43/119 ,  E21B43/117

摘要： A limited entry perforating phased gun system and method for accurate perforation in a deviated/horizontal wellbore is disclosed. The system/method includes a gun string assembly (GSA' ) deployed in a wellbore with shaped charge clusters. The charges are spaced and angled such that, when perforated they intersect at a preferred fracturing plane. Upon fracturing, the fractures initiate at least principal stress location in a preferred fracturing plane perpendicular to the wellbore from an upward and downward location of the wellbore. Thereafter, the fractures connect radially about the wellbore in the preferred fracturing plane. The fracture treatment in the preferred fracturing plane creates minimal tortuosity paths for longer extension of fractures that enables efficient oil and gas flow rates during production.

公开(公告)号：EP0319321A1

公开(公告)日：1989-06-07

申请号：EP88311454.8

申请日：1988-12-02

申请人： HALLIBURTON COMPANY

发明人： George, Flint R. ,  George, Kevin R.

IPC分类号： E21B43/118

CPC分类号： E21B43/11852

摘要： A firing head for actuating a tubing conveyed perforating gun, comprising a housing (20); an actuation mechanism (22) within said housing, said actuation mechanism comprising an actuation piston (30), a first firing piston (48), a second firing piston (62) and retaining means (36), said actuation piston being moveable from a first position in response to force applied generally along the longitudinal axis of said firing head, said first firing piston being in coaxial relation to said actuation piston and being moveable from a first position to a second position, said first firing piston being retained in said first position when said actuation piston is in its respective said first position, said second firing piston being in coaxial relation to said first firing piston and being moveable from a first position to a second position, and said means for releasably retaining said second piston in said first position being releasable in response to hydraulic pressure; said firing head also including an initiator (82) responsive to movement of said first or second firing piston to cause detonation of said perforating gun.

摘要翻译： 一种用于致动输送穿孔枪的管的击发头，包括壳体（20）; 在所述壳体内的致动机构（22），所述致动机构包括致动活塞（30），第一点火活塞（48），第二点火活塞（62）和保持装置（36），所述致动活塞可从 所述第一击发活塞与所述致动活塞处于同轴的关系，并且能够从第一位置移动到第二位置，所述第一击发活塞保持在所述第一位置 当所述致动活塞处于其相应的所述第一位置时，所述第二击发活塞与所述第一击发活塞处于同轴的关系，并且可从第一位置运动到第二位置，并且所述装置用于将所述第二活塞可释放地保持在所述第一位置 位置响应于液压可释放; 所述点火头还包括响应于所述第一或第二点火活塞的运动以引起所述射孔枪的爆震的起动器（82）。

公开(公告)号：EP4278060A1

公开(公告)日：2023-11-22

申请号：EP22740166.8

申请日：2022-01-14

申请人： Hunting Titan, Inc.

发明人： RAJARAM, Sridhar ,  DYESS, Adam ,  MAI, Jason, Hoang

IPC分类号： E21B43/116 ,  E21B43/117 ,  E21B43/118 ,  E21B43/1185 ,  E21B43/119 ,  E21B47/024

公开(公告)号：EP0319321B1

公开(公告)日：1992-08-19

申请号：EP88311454.8

申请日：1988-12-02

申请人： HALLIBURTON COMPANY

发明人： George, Flint R. ,  George, Kevin R.

IPC分类号： E21B43/118

CPC分类号： E21B43/11852

公开(公告)号：EP0492996A1

公开(公告)日：1992-07-01

申请号：EP91311817.0

申请日：1991-12-19

申请人： JET RESEARCH CENTER, INC.

发明人： Walker, Jerry L. ,  Gill, Bennie C. ,  Motley, Jerry D.

IPC分类号： E21B43/118 ,  E21B21/14

CPC分类号： E21B43/116 ,  E21B21/00 ,  E21B43/117

摘要： Perforation of a well where sand (28) has accumulated in a slotted liner (8) is effected by using a perforating gun (12) through which fluid can be passed (arrows) to flush away the sand. A perforating gun (12) for use in the method has longitudinal fluid flow channels (52) to enable fluid to flow therethrough without contacting the explosive charges therein.

摘要翻译： 通过使用穿孔枪（12）可以使流体（箭头）通过（箭头）以将冲洗掉的沙子（8）积聚在开槽衬套（8）中积聚的沙子的穿孔。 用于该方法的穿孔枪（12）具有纵向流体流动通道（52），以使得流体能够流过其中而不接触其中的炸药。

公开(公告)号：EP0429512A4

公开(公告)日：1992-06-24

申请号：EP89909501

申请日：1989-08-08

申请人： LANGSTON, THOMAS, J

发明人： LANGSTON, THOMAS, J

IPC分类号： E21B43/1185 ,  F42D1/045 ,  E21B43/118

CPC分类号： E21B43/1185 ,  F42D1/045

摘要： In accordance with illustrative embodiments of the present invention as disclosed herein, a safety switch (13) for preventing accidental firing of an explosive well tool includes a tubular metal body (22) connected between the cable head (14) and the well tool, a conductor wire (48) extending through such body for carrying current from the cable to the well tool, and a contact plug (36) mounted in a side opening (33) in the body and arranged to be selectively advanced into shorting contact with the conductor wire.