专利名称：Additive for oil-based drilling fluids发明人：Kirsner, Jeff,Miller, Jeff,Bracken, Jon申请号：EP10185487.5申请日：20040630公开号：EP2264121A1公开日：20101222
专利附图：
摘要：The present invention relates to an additive for improving the properties of aninvert emulsion comprising water or brine in an oil or synthetic based drilling fluid for usein drilling a borehole in a subterranean formation, said additive comprising a wettingagent and a product produced by the Diels-Alder reaction of dienophiles, selected from
compounds or reagents selected from the group consisting of carboxylic acids,polycarboxylic acids, acid anhydrides, and combinations or mixes thereof, with a mixtureof fatty acids and resin acids derived from the distillation of crude tall oil, wherein saidacid mixture comprises a ratio of fatty acids to resin acids ranging from about 4:1 toabout 1:1, and wherein the ratio of said wetting agent to said product ranges from about1:5 to about 1:1.
申请人：HALLIBURTON ENERGY SERVICES, INC.
地址：P.O. Box 1431 Duncan, OK 73536 US
国籍：US
代理机构：Cottrill, Emily Elizabeth Helen
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