Invention Grant
- Patent Title: Methods and apparatus for manipulating and driving casing
- Patent Title (中): 操纵和驱动套管的方法和装置
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Application No.: US13360424Application Date: 2012-01-27
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Publication No.: US08371387B2Publication Date: 2013-02-12
- Inventor: Steven G. Blair , Brent J. Fendley , Adam Richard Williams , John G. Evans
- Applicant: Steven G. Blair , Brent J. Fendley , Adam Richard Williams , John G. Evans
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agent Steve Rosenblatt
- Main IPC: E21B19/00
- IPC: E21B19/00 ; E21B19/16 ; E21B19/18
Abstract:
An apparatus and methods for manipulating and driving casing. The apparatus includes mechanically responsive elements for gripping an interior of a casing joint, and hydraulically responsive elements for gripping an interior of the casing joint responsive to pressure of drilling fluid flowing through the apparatus. One method comprises manipulating a casing joint by mechanically gripping an interior thereof, hydraulically gripping the interior of the casing joint responsive to drilling fluid pressure, and rotating the casing joint. Another method comprises driving casing by applying weight and torque thereto through engagement with an interior thereof.
Public/Granted literature
- US20120125632A1 Methods and Apparatus for Manipulating and Driving Casing Public/Granted day:2012-05-24
Information query
