Invention Grant
- Patent Title: Characterizing at least one property of a liner that lines a well
- Patent Title (中): 表征排列井的衬管的至少一个属性
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Application No.: US12117089Application Date: 2008-05-08
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Publication No.: US08326539B2Publication Date: 2012-12-04
- Inventor: Frank Morrison , Edward Nichols , Richard A. Rosthal , Hong Zhang , Luis E. DePavia
- Applicant: Frank Morrison , Edward Nichols , Richard A. Rosthal , Hong Zhang , Luis E. DePavia
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Jeremy Berman
- Main IPC: G01V1/40
- IPC: G01V1/40
Abstract:
Impedances of an electromagnetic (EM) coil positioned in a well lined with an electrically conductive liner are determined. The impedances correspond to plural frequencies of operation of the EM coil. Based on the impedances of the EM coil corresponding to the plural frequencies, an attenuation factor associated with the electrically conductive liner is determined.
Public/Granted literature
- US20090281731A1 Characterizing at Least One Property of a Liner that Lines a Well Public/Granted day:2009-11-12
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