Oil based compositions for sealing subterranean zones and...

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 43/22 (2006.01) C09K 8/50 (2006.01) E21B 33/10 (2006.01) E21B 33/138 (2006.01)

Patent

CA 2231901

The present invention provides oil based compositions and methods of using the compositions for sealing subterranean zones. The compositions are basically comprised of oil, a hydratable polymer, an organophillic clay and a water-swellable clay.

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