Invention Grant
- Patent Title: Methods and apparatus for drilling with casing
- Patent Title (中): 套管钻孔方法及装置
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Application No.: US11750943Application Date: 2007-05-18
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Publication No.: US08276689B2Publication Date: 2012-10-02
- Inventor: Richard L. Giroux , Albert C. Odell, II , Wei Xu
- Applicant: Richard L. Giroux , Albert C. Odell, II , Wei Xu
- Applicant Address: US TX Houston
- Assignee: Weatherford/Lamb, Inc.
- Current Assignee: Weatherford/Lamb, Inc.
- Current Assignee Address: US TX Houston
- Agency: Patterson & Sheridan, LLP
- Main IPC: E21B7/20
- IPC: E21B7/20

Abstract:
In one embodiment, a method of forming a wellbore includes running a liner drilling assembly into the wellbore, the liner drilling assembly having a liner, a conveying member, one or more connection members, and a drilling member. The method includes temporarily suspending the liner at a location below the rig floor; releasing the conveying member and the drilling member from the liner; re-connecting the conveying member to the liner; releasing the liner from its location of temporary suspension; and advancing the liner drilling assembly.
Public/Granted literature
- US20070267221A1 METHODS AND APPARATUS FOR DRILLING WITH CASING Public/Granted day:2007-11-22
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