Well drilling fluids and process for drilling wells

Details Well drilling fluids and process for drilling wells Well drilling fluids and process for drilling wells

1985-12-13

1988-04-26

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, C09K 702

Patent

active

047403187

ABSTRACT:
The rheological characteristics of aqueous well drilling fluids are improved by incorporating into the fluids small amounts of sulfonated styrene-maleic anhydride copolymers and at least one water-soluble polymer prepared from acrylic acid or acrylamide or their derivatives.

REFERENCES:
patent: 2552775 (1951-05-01), Fischer
patent: 2650905 (1953-09-01), Fordyce et al.
patent: 3730900 (1973-05-01), Perricone et al.
patent: 4374733 (1983-02-01), Snyder et al.
patent: 4476029 (1984-10-01), Sy et al.
patent: 4536296 (1985-08-01), Vio
patent: 4554307 (1985-11-01), Farrar et al.

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