Spacer fluid

Details Spacer fluid Spacer fluid

1986-04-23

1988-01-05

Guynn, Herbert B.

Compositions

Leather or fur treating

2523153, 536114, E21B 4300, C08B 3700

Patent

active

047174889

ABSTRACT:
A spacer fluid for use in oil well drilling applications is disclosed. The fluid is prepared from a slurry comprising 25-60% heteropolysaccharide S-130, 0.5-6% organophilic clay, 30-70% solvent, up to 10% surfactant, and up to 6% methanol or isopropanol.

REFERENCES:
patent: 4141843 (1979-02-01), Watson
patent: 4304300 (1981-12-01), Watson
patent: 4312675 (1982-01-01), Pickens et al.
patent: 4330414 (1982-05-01), Hoover
patent: 4342866 (1982-08-01), Kang et al.
patent: 4350601 (1982-09-01), Mosier et al.
patent: 4352861 (1982-04-01), Braun et al.
patent: 4566977 (1986-01-01), Hatfield

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