发明名称 |
DOWNHOLE STEERING TOOL HAVING A NON-ROTATING BENDABLE SECTION |
摘要 |
A downhole steering tool is disclosed. The steering tool includes a rotatable shaft, a substantially non-rotating tool body deployed about the shaft, and a plurality of force application members deployed on the steering tool body. The steering tool further includes a bendable section deployed in the steering tool body. The bendable section is disposed to bend preferentially relative to the steering tool body under an applied bending load. The use of a steering tool body having a bendable section tends to advantageously reduce bending stresses in the steering tool body during use. Moreover, tools embodying this invention may be suitable for higher dogleg severity applications.
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申请公布号 |
CA2548171(C) |
申请公布日期 |
2010.07.20 |
申请号 |
CA20062548171 |
申请日期 |
2006.05.25 |
申请人 |
PATHFINDER ENERGY SERVICES, INC. |
发明人 |
MOODY, MICHAEL J.;SONG, HAOSHI;EPPINK, JAY MILTON;PALUCH, WILLIAM C. |
分类号 |
E21B7/04;E21B7/08 |
主分类号 |
E21B7/04 |
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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