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 代理人
主权项
地址