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

1987-09-24

1989-03-14

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, C09K 702

Patent

active

048122440

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

REFERENCES:
patent: 2552775 (1951-05-01), Fischer et al.
patent: 3730900 (1973-05-01), Perricone et al.
patent: 3764530 (1973-10-01), Burland et al.
patent: 4476029 (1984-10-01), Sy et al.
patent: 4478727 (1984-10-01), Turner et al.
patent: 4554307 (1985-11-01), Farrar et al.
patent: 4581147 (1986-04-01), Branch, III

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