发明名称 |
METHOD AND MEANS FOR CONTROLLING THE COURSE OF A BORE HOLE |
摘要 |
The invention relates to a method and means for controlling the course of a bore hole during drilling thereof. The means comprises a down-hole motor and two eccentric stabilizers mounted on the housing of the down-hole motor near the ends thereof. Controlling the course of a bore hole that is being drilled with the down-hole motor driving the drill bit is done by successively not rotating the drill string and rotating the drill string. |
申请公布号 |
DE3360898(D1) |
申请公布日期 |
1985.11.07 |
申请号 |
DE19833360898 |
申请日期 |
1983.01.10 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
FEENSTRA, ROBIJN;KAMP, ANTHONY WILLEM |
分类号 |
E21B4/20;E21B7/06;E21B7/08;E21B17/10;(IPC1-7):E21B7/06 |
主分类号 |
E21B4/20 |
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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