Thermally stable drilling fluid

Details Thermally stable drilling fluid Thermally stable drilling fluid

1997-09-19

1999-03-16

Kelly, C. H.

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

507140, 507135, C09K 700

Patent

active

058830545

ABSTRACT:
A thermally stable drilling fluid system includes drilling fluid and an additive wherein the additive includes styrene-butadiene copolymers having an average molecular weight greater than about 500,000 g/mol, wherein the drilling fluid system exhibits fluid loss control at high temperature and high pressure conditions.

REFERENCES:
patent: 5333698 (1994-08-01), Van Slyke
patent: 5447197 (1995-09-01), Rae et al.
patent: 5634984 (1997-06-01), Van Slyke
patent: 5636457 (1997-06-01), Van Slyke
patent: 5723423 (1998-03-01), Van Slyke

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