Invention Grant
- Patent Title: Systems and methods for cement evaluation
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Application No.: US14891409Application Date: 2014-05-16
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Publication No.: US10378341B2Publication Date: 2019-08-13
- Inventor: Robert van Kuijk , Ram Sunder Kalyanraman
- Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Agent Sara K. M. Hinkley
- Priority: EP13305630 20130516
- International Application: PCT/US2014/038294 WO 20140516
- International Announcement: WO2014/186640 WO 20141120
- Main IPC: E21B47/14
- IPC: E21B47/14 ; E21B47/00 ; G01V1/30

Abstract:
Systems, methods, and devices for evaluating proper cement installation in a well are provided. In one example, a method includes receiving acoustic cement evaluation data having a first parameterization. At least a portion of the entire acoustic cement evaluation data may be corrected to account for errors in the first parameterization, thereby obtaining corrected acoustic cement evaluation data. This corrected acoustic cement evaluation data may be processed with an initial solid-liquid-gas model before performing a posteriori refinement of the initial solid-liquid-gas model, thereby obtaining a refined solid-liquid-gas model. A well log track-indicating whether a material behind the casing is a solid, liquid, or gas—may be generated by processing the corrected acoustic cement evaluation data using the refined solid-liquid-gas model.
Public/Granted literature
- US20160069181A1 Systems and Methods for Cement Evaluation Public/Granted day:2016-03-10
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