Invention Grant
- Patent Title: Methods and systems for determining angular orientation of a drill string
- Patent Title (中): 用于确定钻柱角度定向的方法和系统
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Application No.: US11416009Application Date: 2006-05-01
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Publication No.: US07681663B2Publication Date: 2010-03-23
- Inventor: Martin E. Cobern
- Applicant: Martin E. Cobern
- Applicant Address: US CT Wallingford
- Assignee: APS Technology, Inc.
- Current Assignee: APS Technology, Inc.
- Current Assignee Address: US CT Wallingford
- Agency: Woodcock Washburn LLP
- Main IPC: E21B7/04
- IPC: E21B7/04 ; E21B47/024
Abstract:
Preferred methods and systems generate a control input based on a periodically-varying characteristic associated with the rotation of a drill string. The periodically varying characteristic can be correlated with the magnetic tool face and gravity tool face of a rotating component of the drill string, so that the control input can be used to initiate a response in the rotating component as a function of gravity tool face.
Public/Granted literature
- US20060260843A1 Methods and systems for determining angular orientation of a drill string Public/Granted day:2006-11-23
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