发明名称 |
Subsea controlled milling |
摘要 |
Subsea controlled milling apparatus and methods. In a described embodiment, a method of controlling displacement of a cutting device conveyed on a tubular string in a subterranean well includes the steps of: interconnecting an apparatus in the tubular string, the apparatus including an axial advancement device and an anchoring device; actuating the anchoring device to anchor the apparatus in the well; applying a pressure differential to the advancement device, thereby displacing the cutting device relative to the apparatus; and operating the cutting device to cut a structure in the well.
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申请公布号 |
US6926102(B2) |
申请公布日期 |
2005.08.09 |
申请号 |
US20030377138 |
申请日期 |
2003.02.28 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
HESS JOSEPH E.;HEPBURN NEIL;SMITH BENJI;GUERRERO JOHN J.;THACKWRAY IAN W. |
分类号 |
E21B4/18;E21B29/06;E21B41/00;(IPC1-7):E21B23/08 |
主分类号 |
E21B4/18 |
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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