Aqueous drilling fluid additive, composition and process

Details Aqueous drilling fluid additive, composition and process Aqueous drilling fluid additive, composition and process

1980-03-18

1981-05-19

Guynn, Herbert B.

Compositions

Leather or fur treating

526240, 526303, C09K 702

Patent

active

042684005

ABSTRACT:
The invention relates to an aqueous drilling fluid composition, a filtration control agent for utilization in said aqueous drilling fluid, and a method of forming a filter cake on the wall of a well for the reduction of filtrate from said drilling fluid, which are effective at high temperatures and pressures, by utilization of a terpolymer of: (1) a monovalent alkali metal salt of acrylic acid; (2) an hydroxy alkyl acrylate; and (3) acrylamide.

REFERENCES:
patent: 2718497 (1955-09-01), Oldham et al.
patent: 2775557 (1956-12-01), Morgan
patent: 3651002 (1972-03-01), Higashimura et al.
patent: 3816308 (1974-06-01), Le Blanc

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