Drilling fluids

Details Drilling fluids Drilling fluids

1985-04-02

1986-08-12

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85A, C09K 702

Patent

active

046055053

ABSTRACT:
A drilling fluid is described, consisting essentially of sodium carboxymethyl cellulose, bentonite, water, and at least one compound selected from 2-mercaptobenzimidazole compounds, 2-mercaptobenzothiazole compounds, 2-mercaptothiazoline and 2-thioimidazolidone.

REFERENCES:
patent: 2425768 (1947-08-01), Wagner
patent: 4317759 (1982-03-01), Kanda et al.

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