High temperature stable aqueous brine fluids

Details High temperature stable aqueous brine fluids High temperature stable aqueous brine fluids

1984-11-21

1986-09-02

Guynn, Herbert B.

Compositions

Leather or fur treating

252 8514, 524 99, 524100, 524104, 524106, C09K 702, E21B 4300

Patent

active

046094768

ABSTRACT:
An aqueous brine fluid, particularly useful as a drilling fluid, and containing a high salt concentration, a vinyl sulfonate amide copolymer such as a water soluble copolymer of acrylamidomethylpropanesulfonic acid salts, and a thermal stability enhancing additive, is provided. The aqueous brine fluid is particularly useful at elevated temperatures in the range of about 150.degree.-220.degree. C.

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"Macromolecules in Solution" by Herbert Morawetz, Interscience Publishers, pp. 81-84, Chap. II.

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