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专利名称：Method for drilling a wellbore using a bi-center drill bit
发明人：Timothy P. Beaton,Thomas L. Young,David K.
Truax
申请号：US09888328申请日：20010622公开号：US06883622B2公开日：20050426
专利附图：
摘要：A method is disclosed for drilling a wellbore. The method includes operating aturbine-type mud motor having a bi-center drill bit coupled to it, and applying an axial
force to the bit which is selected so that the bit drills in a directionally stable manner. Inone embodiment, the motor is a steerable motor operated to maintain a selectedtrajectory of the wellbore.
申请人：Timothy P. Beaton,Thomas L. Young,David K. Truax
地址：The Woodlands TX US,Perth AU,Houston TX US
国籍：US,AU,US
代理机构：Osha & May LLP
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