Controlled release dispersant for clay-thickened, water-based dr

Details Controlled release dispersant for clay-thickened, water-based dr Controlled release dispersant for clay-thickened, water-based dr

1985-02-01

1987-04-07

Guynn, Herbert B.

Compositions

Leather or fur treating

252 8511, 252 8514, C09K 702

Patent

active

046559426

ABSTRACT:
A clay-thickened, water-based drilling fluid composition demonstrating enhanced stability at the elevated temperatures encountered in deep drilling oil and gas recovery operations in described. The drilling fluid composition comprises an aqueous clay dispersion and a dispersing amount of a polymer crosslinked through a polyvalent metal cation.

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