Electrical treatment for oil based drilling or completion...

Chemistry: electrical and wave energy – Apparatus – Apparatus for electrical

Reexamination Certificate

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C204S663000, C204S670000, C204S671000

Reexamination Certificate

active

07837849

ABSTRACT:
A method of removing particulate solids from an oil based drilling or completion fluid is disclosed. The method involves exposing the fluid to an electric field to electrically migrate particulate solids suspended therein, and collecting the migrated particulate solids to remove them from the fluid.

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PCT/GB2004/002863: PCT Written Opinion of the International Searching Authoriy, 7 pages, Mailed Feb. 23, 2006.
International Preliminary Report dated Feb. 23, 2006; International Application No. PCT/GB04/002863 (8 pages).

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