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    • 3. 发明授权
    • Breaker and displacement fluid and method of use
    • 断路器和排量流体及其使用方法
    • US08932999B2
    • 2015-01-13
    • US12032879
    • 2008-02-18
    • Andrew G. K. JonesMark LuysterRaul Navarro
    • Andrew G. K. JonesMark LuysterRaul Navarro
    • C09K8/506C09K8/54C09K8/524C09K8/528
    • C09K8/524C09K8/528C09K2208/26
    • A method of cleaning a wellbore prior to the production of oil or gas is disclosed, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake. The method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid includes an aqueous fluid, and imino diacetic acid or salt thereof. Optionally an acid buffering agent, and a weighting age are also included. The breaker fluid is formulated such that after a predetermined period of time and the filter cake present in the wellbore or on the wellbore face is substantially degraded. Other methods may also include drilling the wellbore with a water-based drilling mud that forms a water-based filter cake, wherein the method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid may include an aqueous fluid, and an iminodiacetic acid or a salt thereof.
    • 公开了在生产油或气体之前清洁井眼的方法,其中已经用形成反转乳液滤饼的反转乳液钻井泥浆钻了井筒。 该方法可以包括以下步骤:将破碎剂流体循环到井眼中,其中破碎剂流体包括含水流体,和亚氨基二乙酸或其盐。 任选地,还包括酸缓冲剂和加权时代。 配制破碎剂流体,使得在预定时间段之后,存在于井眼或井眼面上的滤饼基本上降解。 其他方法还可以包括用形成水基滤饼的水基钻井泥浆钻井井,其中该方法可以包括以下步骤:将破坏剂流体循环到井筒中,其中破碎剂流体可以包括水性流体, 和亚氨基二乙酸或其盐。