发明名称 |
Method and apparatus for establishing communication with a downhole portion of a control fluid pipe |
摘要 |
A downhole tool, such as a safety valve or a stand-alone nipple, has a tubular housing. An axially extending bore is provided in the wall of the housing. A radially extending recess is provided in the internal bore wall of the housing, encompassing the axially extending bore, and a control fluid pipe is passed through the bore and the recess. A cutting tool is mounted for radial movements in the recess and is actuated by downward jarring forces imparted by an auxiliary tool. The control pipe is severed by the cutting element and the lower severed end portion of the control pipe is concurrently crimped to close such end portion.
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申请公布号 |
US4981177(A) |
申请公布日期 |
1991.01.01 |
申请号 |
US19890422774 |
申请日期 |
1989.10.17 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
CARMODY, MICHAEL A.;ERIKSEN, ERIK P. V.;VINJE, LARS |
分类号 |
E21B29/08;E21B34/10 |
主分类号 |
E21B29/08 |
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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