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公开(公告)号：US4445576A
公开(公告)日：1984-05-01
申请号：US381226
申请日：1982-05-24
申请人： Evelyn N. Drake , Yuh-hwang Tsao
发明人： Evelyn N. Drake , Yuh-hwang Tsao
IPC分类号： C09K8/36 , C09K8/42 , E21B33/138
摘要： A spacer comprising the water-in-oil emulsion portion of a shear-thickening well control fluid is used to separate drilling mud from the shear-thickening fluid in the drill pipe in the well bore to avoid premature thickening of the shear thickening fluid in the drill pipe. The shear-thickening well control fluid comprises a water-in-oil emulsion in which is dispersed granular particles of hydratable, water expandable clay.
摘要翻译： 包括剪切增稠井控制流体的油包水乳液部分的间隔件用于将钻井泥浆与井筒中的钻杆中的剪切增稠流体分开，以避免在该井筒中的剪切增稠流体过早增稠 钻杆。 剪切增稠井控制流体包括油包水乳液，其中是可水合的水可膨胀粘土的分散的粒状颗粒。
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2.发明授权Method of drilling and cementing a well using a drilling fluid convertible in place into a settable cement slurry 失效使用可转换到可固化水泥浆中的钻井液钻井和固井的方法
公开(公告)号：US4519452A
公开(公告)日：1985-05-28
申请号：US615851
申请日：1984-05-31
摘要： A method of drilling and cementing a well using a novel drilling fluid convertible in place by the extrinsic application of heat into a settable cement slurry and composition therefor. The novel drilling fluid comprises an aqueous drilling mud containing in intimate admixture therewith cement and a thermally deactivatable deflocculant which prevents the cement from setting while the fluid is being used as a drilling mud. The method comprises drilling a well with a rotary bit through which the novel drilling fluid is circulated; suspending a casing in the well; removing the fluid from inside the casing; and applying sufficient extrinsic heat to the fluid in place in the annulus of the well to deactivate the deflocculant, thereby converting the fluid in place into a settable cement slurry.
摘要翻译： 一种使用新的钻井液钻井和固井的方法，该新型钻井液通过外部施加的热量可转换成可固化的水泥浆料及其组合物。 新型钻井液包括含水泥的水性钻井泥浆，其中含有水泥和热失活的抗絮凝剂，其在流体用作钻井泥浆时防止水泥凝固。 该方法包括用新型钻井液循环的旋转钻头钻井; 将套管悬挂在井中; 从壳体内取出流体; 并且将适当的外在热量施加到井的环空中的适当位置，以使反絮凝剂失活，从而将流体转移到可固化的水泥浆中。
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