发明名称 |
Drilling direction control device |
摘要 |
A drilling shaft deflection assembly for a drilling direction control device of the type comprising a rotatable drilling shaft and a housing for supporting a length of the drilling shaft for rotation therein. The deflection assembly is contained within the housing and is axially located between a first support location and a second support location for bending the drilling shaft between the first support location and the second support location. The deflection assembly includes a deflection mechanism for imparting lateral movement to the drilling shaft to bend the drilling shaft, a deflection actuator for actuating the deflection mechanism in response to longitudinal movement of the deflection actuator, and a deflection linkage mechanism between the deflection mechanism and the deflection actuator for converting longitudinal movement of the deflection actuator to lateral movement of the drilling shaft.
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申请公布号 |
US6769499(B2) |
申请公布日期 |
2004.08.03 |
申请号 |
US20020180117 |
申请日期 |
2002.06.27 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
CARGILL EDWARD JAMES;DAVIES EVAN L.;DONISON GARY L.;KENT GERALD EDWARD;MAXWELL TERRANCE DEAN;WIECEK BOGUSLAW |
分类号 |
E21B7/06;E21B7/08;(IPC1-7):E21B7/04 |
主分类号 |
E21B7/06 |
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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