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    Methods for Controlling Lost Circulation in A Subterranean Well and Materials Therefor
    2.
    发明申请
    Methods for Controlling Lost Circulation in A Subterranean Well and Materials Therefor 审中-公开
    控制地下井失水循环的方法及其材料

    公开(公告)号：US20160060501A1

    公开(公告)日：2016-03-03

    申请号：US14936836

    申请日：2015-11-10

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Slaheddine Kefi ,  Jesse C. Lee ,  Chrystel Brunet-Cambus ,  Nikhil Shindgikar

    IPC: C09K8/32 ,  E21B21/00

    CPC classification number: C09K8/32 ,  C09K8/502 ,  C09K8/516 ,  C09K2208/08 ,  E21B21/003

    Abstract: Method for controlling lost circulation in a subterranean well using oil-dispersible lost-circulation materials which comprise fibers that are coated (or sized) with a lipophilic coupling agent, a lipophilic film-forming polymer or both. The fibers are preferably between about 6 mm and about 25 mm long, and between about 10 μm and about 200 μm in diameter. The fibers may be added to carrier fluids comprising oil-base fluids, synthetic-base fluids, invert-emulsion-base fluids and combinations thereof. The preferred fiber concentration in the carrier fluid is between about 0.55 g/L and about 28.5 g/L. The carrier fluid may be a drilling fluid, a spacer fluid or a lost-circulation pill.

    Abstract translation: 使用包含用亲脂性偶联剂，亲脂性成膜聚合物或两者涂覆（或尺寸）的纤维的油分散性缺失循环材料来控制地下井中的流失的方法。 纤维的长度优选为约6mm至约25mm，直径为约10μm至约200μm。 纤维可以添加到包含油基流体，合成基础流体，反相乳液基流体及其组合的载体流体中。 载体流体中优选的纤维浓度在约0.55g / L至约28.5g / L之间。 载体流体可以是钻井液，间隔液或失循环丸。

    Well Treatment
    3.
    发明申请
    Well Treatment 审中-公开
    治疗好

    公开(公告)号：US20150159080A1

    公开(公告)日：2015-06-11

    申请号：US14624396

    申请日：2015-02-17

    Applicant: Schlumberger Technology Corporation

    Inventor： Jesse C. Lee ,  Stephane Boulard ,  Nikhil Shindgikar ,  Slaheddine Kefi

    IPC: C09K8/588

    CPC classification number: C09K8/588 ,  C04B40/0633 ,  C09K8/035 ,  C09K8/487 ,  C09K8/508 ,  C09K8/516 ,  E21B21/003 ,  E21B33/13 ,  C04B28/02 ,  C04B2103/0046 ,  C04B2103/12

    Abstract: The following describes a novel and alternative mechanism in regards to releasing reactive chemicals. Namely, utilizing shells containing multiple emulsions that can be blended with the base fluids, and then react with said base fluid upon exposure to a trigger e.g. high shear and/or elongation flow, therefore plugging even large fractures. Such gelling lost circulation material allows to obtain a reliable carrier and fast reaction when triggered.

    Abstract translation: 以下描述了释放反应性化学物质的新型和替代机理。 也就是说，利用包含可与基础流体共混的多重乳液的壳，然后在暴露于触发器时与所述基础液体反应。 高剪切和/或伸长流动，因此堵塞甚至大的裂缝。 这种胶凝失去循环材料可以在触发时获得可靠的载体和快速的反应。

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