Invention Grant
- Patent Title: Identification of casing collars while drilling and post drilling using LWD and wireline measurements
- Patent Title (中): 使用LWD和有线测量在钻井和后钻时识别套管
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Application No.: US13122127Application Date: 2009-10-02
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Publication No.: US09175559B2Publication Date: 2015-11-03
- Inventor: Najmud Dowla , John C. Rasmus , Abhijeet Nayan , Taesoo Kim , Richard J. Radtke , Michael Evans
- Applicant: Najmud Dowla , John C. Rasmus , Abhijeet Nayan , Taesoo Kim , Richard J. Radtke , Michael Evans
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent John Vereb
- International Application: PCT/US2009/059369 WO 20091002
- International Announcement: WO2010/040045 WO 20100408
- Main IPC: E21B47/09
- IPC: E21B47/09 ; E21B17/08
Abstract:
Systems and methods identify and/or detect one or more features of a well casing by utilizing one or more downhole measurements obtainable by a downhole component. The one or more features of the well casing are identifiable and/or detectable from the one or more measurements associated with one or more properties of the one or more features of the well casing. The one or more measurements for indentifying and/or detecting a presence and/or a location of the one or more features of the well casing include sonic measurements, nuclear measurements, gamma ray measurements, photoelectric measurements, resistivity measurements and/or combinations thereof.
Public/Granted literature
- US20110290011A1 IDENTIFICATION OF CASING COLLARS WHILE DRILLING AND POST DRILLING USING LWD AND WIRELINE MEASUREMENTS Public/Granted day:2011-12-01
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