Oil based drilling mud filtrate contamination monitoring using gas to oil ratio

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United States of America Patent

PATENT NO 9606260
SERIAL NO

13865839

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Abstract

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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.

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Patent Owner(s)

  • SCHLUMBERGER TECHNOLOGY CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gisolf, Adriaan Houston, US 53 315
Mullins, Oliver C Ridgefield, US 140 4189
Smits, Anthony Yokohama, JP 6 57
Zuo, Youxiang Sugar Land, US 69 566

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