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    METHOD FOR REMOVING CONTAMINANTS FROM WASTEWATER IN HYDRAULIC FRACTURING PROCESS
    24.
    发明公开
    METHOD FOR REMOVING CONTAMINANTS FROM WASTEWATER IN HYDRAULIC FRACTURING PROCESS 审中-公开
    方法去除废水中的杂质在液压分离

    公开(公告)号：EP2971485A4

    公开(公告)日：2016-12-14

    申请号：EP13877286

    申请日：2013-06-28

    申请人： NEVIN DONALD

    发明人： NEVIN DONALD

    IPC分类号： E21B43/26 ,  C09K8/66 ,  E21B17/00 ,  E21B41/00

    CPC分类号： E21B43/26 ,  C09K8/66 ,  E21B41/0057

    摘要： A borehole is drilled from the surface to an underground shale matrix. A pipe is inserted into the borehole. Openings are created in the pipe in fluid communication with fractures in the shale matrix. The interior surface of at least one section of pipe is coated with a contaminant-capturing substance. Fracturing fluid including water, proppants and chemicals is pumped through the pipe and into the fractures in the shale matrix. The fluid re-enters the pipe from the shale matrix and moves toward the surface through the coated pipe section where contaminants are sequestered by the coating. Natural gas or oil from the fractured shale then enters the pipe and moves to the surface to be collected. The coated pipe section remains in the ground permanently such that the necessity of disposing of the captured contaminants is eliminated.

    摘要翻译： 的钻进是从表面到在地下页岩矩阵钻孔。 的管被插入到钻孔中。 口被设置在管中创建与在页岩基质裂缝流体连通。 管的至少一个区段的内表面涂有污染物捕获物质。 包括水，支撑剂和化学品压裂液通过管并进入页岩基质裂缝泵送。 从页岩基质的流体重新进入管和朝向表面通过有涂层管子部分，在那里的污染物被涂层螯合移动。 从压裂页岩天然气或油然后进入管并进入到收集表面上。 将涂覆的管段保持在接地永久地检查没有捕获的污染物的设置的必要性被消除。

    A PROPPANT
    25.
    发明公开
    A PROPPANT 审中-公开
    一个PROPPANT

    公开(公告)号：EP3074480A1

    公开(公告)日：2016-10-05

    申请号：EP14821917.3

    申请日：2014-11-25

    申请人： BASF SE

    发明人： GERSHANOVICH, Alexander ,  TANGUAY, Christopher, M.

    IPC分类号： C09K8/66 ,  C09K8/80

    CPC分类号： C09K8/805 ,  C08G18/6588 ,  C08G18/69 ,  C08G18/7657 ,  C09D175/14 ,  C09K8/66 ,  C09K8/68 ,  C09K8/885

    摘要： A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight based on the total weight of the proppant, and a polyurethane coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight based on the total weight of the proppant. The polyurethane coating comprises the reaction product of an isocyanate component and an isocyanate-reactive component comprising a polydiene polyol.

    摘要翻译： 支撑剂包括基于支撑剂的总重量以90-99.5重量％的量存在的颗粒和围绕该颗粒设置的聚氨酯涂层，并且以基于聚合物颗粒的0.5-10重量％的量存在 支撑剂的总重量。 聚氨酯涂层包含异氰酸酯组分和包含聚二烯多元醇的异氰酸酯反应性组分的反应产物。

    COMPOSITIONS AND METHODS FOR CONTROLLING FLUID LOSS
    30.
    发明公开
    COMPOSITIONS AND METHODS FOR CONTROLLING FLUID LOSS 审中-公开
    组合物和方法滤失

    公开(公告)号：EP2164921A1

    公开(公告)日：2010-03-24

    申请号：EP08770640.4

    申请日：2008-06-11

    申请人： Baker Hughes Incorporated

    发明人： CREWS, James, B. ,  HUANG, Tianping

    IPC分类号： C09K8/504 ,  C09K8/506 ,  C09K8/66 ,  C09K8/68

    CPC分类号： C09K8/5045 ,  C09K8/506 ,  C09K8/665 ,  C09K8/68 ,  C09K2208/30

    摘要： Alkaline earth metal compounds may be fluid loss control (FLC) agents for viscoelastic surfactant (VES) fluids used for fluid loss control pills, lost circulation material pills and kill pills in hydrocarbon recovery operations. The FLC agents may include, but not be limited to oxides and hydroxides of alkaline earth metal, and in one case magnesium oxide where the particle size of the magnesium oxide is between 1 nanometer to 0.4 millimeter. The FLC agent may alternatively be transition metal oxides and/or transition metal hydroxides. The FLC agent appears to associate with the VES micelles and together form a novel pseudo-filter cake quasi-crosslinked viscous fluid layer that limits further VES fluid flow into the porous media. The FLC agent solid particles may be added along with VES fluids. The pills may also contain internal breakers to reduce the viscosity thereof so that the components of the pill may be recovered.