Fluid loss additives for oil base muds and low fluid loss compos

Details Fluid loss additives for oil base muds and low fluid loss compos Fluid loss additives for oil base muds and low fluid loss compos

1986-04-07

1987-01-20

Guynn, Herbert B.

Compositions

Leather or fur treating

252 8511, C09K 706

Patent

active

046378839

ABSTRACT:
A novel ammonium salt of quebracho prepared by reacting quebracho with alkyl quaternary ammonium salts is an effective fluid loss control agent when used in oil base drilling fluids for use in drilling oil and gas wells, especially in water in oil emulsion drilling mud formulations, controlling filtrate loss of the oil-base mud under high temperature and high pressure conditions.

REFERENCES:
patent: 2675353 (1954-04-01), Dawson
patent: 2816073 (1957-12-01), Stratton
patent: 2861042 (1958-11-01), Watkins
patent: 2871188 (1959-01-01), Watkins
patent: 3168475 (1965-02-01), Jordan et al.
patent: 3232870 (1966-02-01), Cowan et al.
patent: 4421655 (1983-12-01), Cowan
patent: 4508628 (1985-04-01), Walker et al.

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