发明名称 |
Apparatus and method for inserting and retrieving a tool string through well surface equipment |
摘要 |
Well surface equipment is provided to seal around the outer surface of portions of tool sections as the tool sections are assembled or disconnected in a portion of the well surface equipment. The portion of the well surface equipment is isolated from wellhead pressure to enhance well operator control during assembly or disassembly of a tool string. Also, if a fluid path is opened up due to activation of the tool string (such as initiation of a detonating cord that is placed in the fluid path), a barrier mechanism is actuated to block fluid communication through this fluid path so that a portion of the well surface equipment can remain isolated from wellhead pressure to enable convenient retrieval and disconnection of tool sections.
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申请公布号 |
US2002185276(A1) |
申请公布日期 |
2002.12.12 |
申请号 |
US20020165444 |
申请日期 |
2002.06.07 |
申请人 |
MULLER LAURENT E.;GRIGAR LARRY L.;HENDERSON STEVEN W.;HUBER KLAUS B.;GILL BENNIE C.;LUDOLF ROLF;RYTLEWSKI GARY L. |
发明人 |
MULLER LAURENT E.;GRIGAR LARRY L.;HENDERSON STEVEN W.;HUBER KLAUS B.;GILL BENNIE C.;LUDOLF ROLF;RYTLEWSKI GARY L. |
分类号 |
E21B33/068;(IPC1-7):E21B29/00;E21B33/00 |
主分类号 |
E21B33/068 |
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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