Compositions – Leather or fur treating
Patent
1987-12-04
1989-05-16
Guynn, Herbert B.
Compositions
Leather or fur treating
252 8514, 252 493, C09K 702
Patent
active
048307653
ABSTRACT:
The present invention provides a modified liquid phase drilling fluid having desirable properties of shale swelling inhibition, lubrication, and high temperature performance. The fluid is comprised of the following: (1) a liquid phase containing: (a) a water phase comprising fresh water, seawater, brine, simulated brine, or mixtures thereof; and (b) a water-soluble component selected from the class consisting of polyhydric alcohols, glycol, glycol ethers, polypropylene glycols, polyethylene glycols, ethylene oxide-propylene oxide copolymers ("EO-PO"), alcohol-initiated EO-PO copolymers and/or mixtures thereof, the ratio of said water-soluble component in the total liquid phase being from about 5% to about 50% by volume; (2) a viscosifier for suspension of solids in said liquid phase; and (3) a filtration control agent.
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Clapper Dennis K.
Enright Dorothy P.
Perricone Alphonse C.
Baker Hughes Incorporated
Guynn Herbert B.
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