发明名称 Methods and apparatus for drilling with casing
摘要 Forming a wellbore including running a liner drilling assembly 100 into the wellbore, the liner drilling assembly 100 having a liner 120, a conveying member, one or more connection members 116, and a drilling member 180. Including temporarily suspending the liner 120 at a location below the rig floor; releasing the conveying member and the drilling member 180 from the liner 120; reconnecting the conveying member to the liner; releasing the liner 120 from its location of temporary suspension; and advancing the liner drilling assembly 100.
申请公布号 GB2438508(A) 申请公布日期 2007.11.28
申请号 GB20070009806 申请日期 2007.05.22
申请人 WEATHERFORD/LAMB INC. 发明人 RICHARD LEE GIROUX;ALBERT C ODELL II;WEI XU
分类号 E21B7/20;E21B10/26;E21B17/07;E21B43/10 主分类号 E21B7/20
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