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Use of selected esteries in water-based oil / water emulsion type drilling fluids, and similar drilling fluids with improved ecological compatibility
Use of selected esteries in water-based oil / water emulsion type drilling fluids, and similar drilling fluids with improved ecological compatibility
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机译:选定的酯类在水基油/水乳液型钻井液和具有改善生态相容性的类似钻井液中的用途
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摘要
The description relates to the use of water-emulsifiable esters of saturated and/or unsaturated carboxylic acids with up to 36 C atoms, which are liquid or at least plastically deformable at the working temperature and have flash-points of at least 80 DEG C, and mono and/or polyvalent alcohols as at least the major component of the dispersed oil phase of water-based O/W emulsion drilling fluids which are suitable for the environmentally acceptable exploitation of geological formations and may, if desired, contain insoluble, finely divided fillers to form water-based O/W emulsion drilling muds and/or further additives like emulsifiers, fluid-loss additives, wetting agents, alkaline reserves and/or aids for the inhibition of highly water-sensitive drilled rock.
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