Powder-form lubricant additives for water-based drilling fluids

Details Powder-form lubricant additives for water-based drilling fluids Powder-form lubricant additives for water-based drilling fluids

1987-07-08

1989-02-07

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, 252 493, C09K 702

Patent

active

048029980

ABSTRACT:
Powder-form lubricant additives for water-based drilling fluids which contain from 95 to 30% by weight, based on the total weight of the powder, of highly disperse silicas, from 5 to 70% by weight, based on the total weight of the powder, of one or more fatty acid alkyl esters corresponding to the following general formula.

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