Fluid compositions

Details Fluid compositions Fluid compositions

1987-06-15

1988-10-11

Guynn, Herbert B.

Compositions

Leather or fur treating

252 8511, C09K 706

Patent

active

047769661

ABSTRACT:
Drilling fluid compositions of the invert oil-based type incorporate (i) as the agent for emulsifying the brine phase in the oil phase, a block or graft copolymer of the general formula (A-COO).sub.m B, where A and B represent polymeric components derived from a specified type of oil-soluble complex monocarboxylic acid and from a water-soluble polyalkylene glycol or polyether polyol, respectively, and m is an integer at least 2, and (ii) as the agent for dispersing solid particulate matter in the oil phase a surfactant containing a C.sub.30-500 hydrocarbon chain as hydrophobic component, and a polar component adsorbable on to the particulate solid surface.

REFERENCES:
patent: 3255108 (1966-06-01), Wiese
patent: 3269946 (1966-08-01), Wiese
patent: 3709819 (1973-01-01), Browning et al.
patent: 4203877 (1980-05-01), Baker
patent: 4306980 (1981-12-01), Brandt et al.
patent: 4425462 (1984-01-01), Turner et al.

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