Oil-based well bore fluids and gellants therefor

Details Oil-based well bore fluids and gellants therefor Oil-based well bore fluids and gellants therefor

1987-12-18

1991-06-04

Stoll, Robert L.

Compositions

Leather or fur treating

252 8511, C09K 1706

Patent

active

050211706

ABSTRACT:
An invert emulsion drilling fluid comprised of a liquid oleaginous medium, water, an emulsifier and a gellant comprised of sulfonated ethylene/propylene/5-phenyl-2-norbornene terpolymer and an organophilic clay.

REFERENCES:
patent: 4105578 (1978-08-01), Finlayson et al.
patent: 4287086 (1981-09-01), Finlayson et al.
patent: 4425462 (1984-01-01), Turner et al.
patent: 4442011 (1984-04-01), Thaler et al.
TekMul 1949, publication, 5 pages, undated.

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