Composition and method for drilling formations containing geothe

Compositions – Leather or fur treating

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175 69, 175 71, C09K 708, C09K 702, E21C 706

Patent

active

040135683

ABSTRACT:
A composition and method for drilling a well into a subterranean formation containing a geothermal fluid utilizing a gas-containing aqueous drilling fluid containing both lignite and a salt of a high molecular weight acrylic polymer.

REFERENCES:
patent: 2552775 (1971-05-01), Fischer et al.
patent: 2650197 (1953-08-01), Rahn
patent: 2923681 (1960-02-01), Hein et al.
patent: 3215200 (1965-11-01), Kirkpatrick et al.
patent: 3313362 (1967-04-01), Schneider
patent: 3486560 (1969-12-01), Hutchison et al.
patent: 3749554 (1973-07-01), Fischer et al.

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