发明名称 |
Annulus pressure firer mechanism with releasable fluid conduit force transmission means |
摘要 |
A system for perforating a well with an annulus pressure firer is provided by the present invention. A pressure responsive means is positioned in a tubing string uphole a packer and includes a piston movable in response to a pressure differential between the upper annulus pressure and the pressure inside the tubing string. The movement of the piston is transferred through a second, concentric tubing string to a firing head on a perforating gun below the packer. The system includes a means for simultaneously decoupling the concentric tubing strings below the packer to drop the perforating gun to the bottom of the well.
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申请公布号 |
US4726610(A) |
申请公布日期 |
1988.02.23 |
申请号 |
US19870935444 |
申请日期 |
1987.02.18 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
GEORGE, FLINT R.;HAUGEN, DAVID M. |
分类号 |
E21B43/116;E21B43/1185;(IPC1-7):F16L35/00 |
主分类号 |
E21B43/116 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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