发明名称 |
PASSIVE VERTICAL DRILLING MOTOR STABILIZATION |
摘要 |
A drilling stabilization system includes a power section coupled to an upper end of a transmission housing, a bearing housing coupled to a lower end of the transmission housing, and a drill bit coupled to the bearing housing, wherein the transmission housing includes at least two radially outwardly extending blades disposed on the transmission housing. A method of drilling a substantially concentric wellbore includes drilling a formation with a directional drilling bottomhole assembly coupled to a drill string, changing a direction of the drilling of the formation being drilled, removing the directional drilling bottomhole assembly from the drill string, coupling a drilling stabilization system to the drill string, and drilling the formation with the drilling stabilization system.
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申请公布号 |
CA2597368(A1) |
申请公布日期 |
2008.02.25 |
申请号 |
CA20072597368 |
申请日期 |
2007.08.15 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
MARQUEZ, HUGO ROBERTO;EVANS, NIGEL |
分类号 |
E21B7/04;E21B4/00;E21B7/06 |
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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