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Using selected oleophilic alcohols in water-based drilling muds of the O / W emulsion type, and similar drilling fluids with improved ecological compatibility
Using selected oleophilic alcohols in water-based drilling muds of the O / W emulsion type, and similar drilling fluids with improved ecological compatibility
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机译:在O / W乳化型水基钻井液中使用精选的亲油醇,以及具有改善的生态相容性的类似钻井液
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PCT No. PCT/EP90/00735 Sec. 371 Date Nov. 15, 1991 Sec. 102(e) Date Nov. 15, 1991 PCT Filed May 7, 1990 PCT Pub. No. WO90/14401 PCT Pub. Date Nov. 29, 1990.Substantially water-insoluble, oleophilic mono- and/or polyfunctional alcohols of natural and/or synthetic origin which have flash points of at least 80 DEG C., or corresponding solutions of mono- and/or polyhydric alcohols in ecologically acceptable water-insoluble oils as the dispersed oil phase of water-based O/W-emulsion drilling fluids, which are suitable for an environmentally-acceptable development of geological formations and which, if desired, contain insoluble, finely particulate weighting agents for the formation of water-based O/W-emulsions drilling muds and/or further additives, such as emulsifiers, fluid-loss additives, wetting agents, alkali reserves and/or auxiliary substances for the inhibition of drilled rock of high water-sensitivity.
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