发明名称 |
SYSTEM AND METHOD FOR DIRECTIONALLY DRILLING A BOREHOLE WITH A ROTARY DRILLING SYSTEM |
摘要 |
In certain aspects, side cutting of a sidewall of the borehole by a drill bit under an applied side force is controlled by a geostationary element to provide for directional side cutting and, as a result, directional drilling of the borehole through the earth formation. In other aspects, a non-concentrically coupled gauge pad assembly may rotate with the drilling system and bias or focus the applied side force. |
申请公布号 |
CA2694857(A1) |
申请公布日期 |
2009.02.19 |
申请号 |
CA20082694857 |
申请日期 |
2008.08.12 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
SHEPPARD, MICHAEL;JOHNSON, ASHLEY;DOWNTON, GEOFFREY |
分类号 |
E21B7/06;E21B17/10 |
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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