Environmentally safe water base drilling fluid

Details Environmentally safe water base drilling fluid Environmentally safe water base drilling fluid

1992-12-24

1995-04-04

Geist, Gary

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C09K 702

Patent

active

054038200

ABSTRACT:
The invention provides a water base drilling fluid having decreased swelling effect on hydratable shales contacted by the drilling fluid wherein the aqueous phase contains an alkyl glucoside solubilized therein. Another embodiment of the invention provides an aqueous solution for addition to drilling fluids to decrease the swelling of hydratable shales contacted by the drilling fluid, the solution comprising an aqueous phase having dissolved (solubilized) therein from about 50% to about 85% by weight methyl glucoside and at least about 2% by weight of an alkali metal hydroxide.

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