Method and apparatus for measuring borehole mud resistivity

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United States of America Patent

PATENT NO 8860415
SERIAL NO

13114183

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Abstract

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Apparatuses, methods for manufacturing an apparatus and methods for measuring a fluid resistivity are provided. An apparatus for measuring a fluid resistivity includes a fluid column defining structure, two current injecting electrodes, voltage measurement electrodes, and two additional electrodes. The fluid column defining structure is configured to allow a fluid, whose resistivity is to be measured, to fill a fluid column inside the fluid column defining structure. The two current injecting electrodes are configured to inject a known current into the fluid column. The voltage measurement electrodes are configured to measure a voltage across a measurement column included in the fluid column. The two additional electrodes disposed inside the fluid column defining structure, outside of the positions of the two current injecting electrodes in the longitudinal direction are electrically connected to each other.

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Patent Owner(s)

  • SONDEX WIRELINE LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Johnson, Timothy Calgary, CA 122 2300
Kennedy, Scott Phoenix, US 20 121
MacLean, Douglas Ardrossan, CA 1 0

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