Invention Grant
- Patent Title: Oil based drilling mud filtrate contamination monitoring using gas to oil ratio
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Application No.: US13865839Application Date: 2013-04-18
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Publication No.: US09606260B2Publication Date: 2017-03-28
- Inventor: Youxiang Zuo , Adriaan Gisolf , Anthony Smits , Oliver C. Mullins
- 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 Michael Dae
- Main IPC: E21B49/08
- IPC: E21B49/08 ; G01V8/10 ; G01N33/28

Abstract:
A method for monitoring oil based mud filtrate contamination is provided including steps of analytically dividing a fluid stream into two parts, determining a gas/oil ratio for a native fluid determining an apparent gas/oil ratio for the contaminated fluid and determining on a volume fraction, an oil based contamination level based upon the gas/oil ratio for the native fluid and the apparent gas/oil ratio for the contaminated fluid.
Public/Granted literature
- US20140316705A1 Oil Based Drilling Mud Filtrate Contamination Monitoring Using Gas To Oil Ratio Public/Granted day:2014-10-23
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