Process for making drilling fluid additives containing lignosulf

Details Process for making drilling fluid additives containing lignosulf Process for making drilling fluid additives containing lignosulf

1986-08-22

1988-07-05

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, 530506, C09K 702, C07G 100

Patent

active

047553073

ABSTRACT:
An improved process for making drilling fluid additives. The drilling fluid additives generally comprise titanium and/or zirconium lignosulfonates. The improved process of this invention can be performed without any delays caused by plugging during filtration. Filtration plugging problems are eliminated by adding only stoichiometric amounts of zirconium and/or titanium lignosulfonate to the lignosulfonate mixture prior to filtration.

REFERENCES:
patent: 2935504 (1960-05-01), King et al.
patent: 3544460 (1970-12-01), Markham et al.
patent: 3634387 (1972-01-01), Dougherty
patent: 3962099 (1976-06-01), Whitfill
patent: 4220585 (1980-09-01), Javora et al.
patent: 4447339 (1984-05-01), Detroit
patent: 4457853 (1984-07-01), Detroit
Gray, et al., Composition and Properties of Oil Well Drilling Fluids (4th Ed. 1981), pp. 570-573.

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