Drilling fluid composition

Details Drilling fluid composition Drilling fluid composition

1981-09-21

1983-02-22

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85A, 524445, C09K 702

Patent

active

043747388

ABSTRACT:
A water-based drilling fluid composition is described which comprises an aqueous dispersion of a clay material containing an effective dispersing amount of a modified lignosulfonate which is obtained by graft polymerization of from 5 to 30 weight percent of an acrylic compound with the lignosulfonate. The grafted lignosulfonate has an average molecular weight of less than 80,000.

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