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1.发明申请公开(公告)号：US20120322695A1
公开(公告)日：2012-12-20
申请号：US13511144
申请日：2010-12-03
IPC分类号： C09K8/32
CPC分类号： C09K8/32 , C09K8/502 , C09K8/516 , C09K2208/08 , E21B21/003
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US09896612B2
公开(公告)日：2018-02-20
申请号：US13511144
申请日：2010-12-03
CPC分类号： C09K8/32 , C09K8/502 , C09K8/516 , C09K2208/08 , E21B21/003
摘要： 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.
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公开(公告)号：US20120205102A1
公开(公告)日：2012-08-16
申请号：US13402866
申请日：2012-02-22
CPC分类号： C09K8/588 , C04B40/0633 , C09K8/035 , C09K8/487 , C09K8/508 , C09K8/516 , E21B21/003 , E21B33/13 , C04B28/02 , C04B2103/0046 , C04B2103/12
摘要： 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.
摘要翻译： 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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公开(公告)号：US08991497B2
公开(公告)日：2015-03-31
申请号：US13402866
申请日：2012-02-22
IPC分类号： E21B43/22 , E21B33/13 , C09K8/035 , E21B21/00 , C04B40/06 , C09K8/487 , C09K8/508 , C09K8/516
CPC分类号： C09K8/588 , C04B40/0633 , C09K8/035 , C09K8/487 , C09K8/508 , C09K8/516 , E21B21/003 , E21B33/13 , C04B28/02 , C04B2103/0046 , C04B2103/12
摘要： 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.
摘要翻译： 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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公开(公告)号：US08689869B2
公开(公告)日：2014-04-08
申请号：US12997173
申请日：2009-06-09
申请人： Nikhil Shindgikar , Jesse Lee , Slaheddine Kefi
发明人： Nikhil Shindgikar , Jesse Lee , Slaheddine Kefi
CPC分类号： C09K8/145 , C04B20/1029 , C04B28/02 , C04B2103/0085 , C09K8/467 , C09K8/487 , C09K8/5045 , C09K8/516 , C04B14/104 , C04B20/1007 , C04B20/1066 , C04B40/0641
摘要： An encapsulated thixotropy agent may be added to aqueous well service fluids. Such fluids include drilling fluids, cement slurries and polymer pills. The well service fluid may be subjected to shearing action downhole, causing the thixotropy agent to be released and imparting thixotropy to the fluid. The thixotropy agent comprises a dry suspension of synthetic layered silicates.
摘要翻译： 包封的触变剂可以加入到水性维修液中。 这种流体包括钻井液，水泥浆和聚合物丸。 井服务流体可以在井下进行剪切作用，导致触变剂被释放并赋予流体触变性。 触变剂包括合成层状硅酸盐的干悬浮液。
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公开(公告)号：US08371381B2
公开(公告)日：2013-02-12
申请号：US12783232
申请日：2010-05-19
CPC分类号： C09K8/426 , C04B28/02 , C09K8/03 , C09K8/40 , C09K8/487 , C09K8/50 , C09K8/516 , C09K8/80 , C09K2208/08 , C09K2208/18 , E21B21/003 , E21B33/13 , E21B33/138 , E21B43/267 , C04B20/0048
摘要： Mixtures of fibers and solid particles are effective for curing fluid losses and lost circulation in a subterranean well. Stiff fibers are more effective than flexible ones; however, mixtures of stiff and flexible fibers have a synergistic effect. The quantity and particle-size distribution of the solids are optimized according to the stiffness, dimensions and concentrations of fibers.
摘要翻译： 纤维和固体颗粒的混合物对于固化地下井的流体损失和流失是有效的。 刚性纤维比柔性纤维更有效; 然而，刚性和柔性纤维的混合物具有协同效应。 根据纤维的刚度，尺寸和浓度优化固体的数量和粒度分布。
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公开(公告)号：US20100307747A1
公开(公告)日：2010-12-09
申请号：US12783232
申请日：2010-05-19
IPC分类号： E21B43/02
CPC分类号： C09K8/426 , C04B28/02 , C09K8/03 , C09K8/40 , C09K8/487 , C09K8/50 , C09K8/516 , C09K8/80 , C09K2208/08 , C09K2208/18 , E21B21/003 , E21B33/13 , E21B33/138 , E21B43/267 , C04B20/0048
摘要： Mixtures of fibers and solid particles are effective for curing fluid losses and lost circulation in a subterranean well. Stiff fibers are more effective than flexible ones; however, mixtures of stiff and flexible fibers have a synergistic effect. The quantity and particle-size distribution of the solids are optimized according to the stiffness, dimensions and concentrations of fibers.
摘要翻译： 纤维和固体颗粒的混合物对于固化地下井的流体损失和流失是有效的。 刚性纤维比柔性纤维更有效; 然而，刚性和柔性纤维的混合物具有协同效应。 根据纤维的刚度，尺寸和浓度优化固体的数量和粒度分布。
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公开(公告)号：US20160060500A1
公开(公告)日：2016-03-03
申请号：US14783108
申请日：2013-04-09
申请人： Slaheddine Kefi
发明人： Slaheddine Kefi
摘要： Well treatment compositions comprise at least one surfactant, and an ionic liquid, a deep eutectic solvent or both. When added to spacer fluids, chemical washes or both, the compositions promote the removal of non-aqueous drilling fluids from casing surfaces. Additionally, the treated casing surfaces are water wet, thereby promoting optimal bonding to cement.
摘要翻译： 井处理组合物包含至少一种表面活性剂，离子液体，深共晶溶剂或两者。 当添加到间隔液，化学洗涤或两者时，组合物促进从套管表面去除非水性钻井液。 此外，经处理的外壳表面是水湿的，从而促进对水泥的最佳粘合。
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公开(公告)号：US08393395B2
公开(公告)日：2013-03-12
申请号：US12477442
申请日：2009-06-03
申请人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
发明人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
摘要： A process for hydraulic fracturing of a subterranean reservoir formation penetrated by a wellbore includes pumping a fracturing fluid or other aqueous fluid from the surface via the wellbore and into the reservoir. This fluid is an aqueous suspension of particles which each comprise an oilfield chemical distributed within an encapsulating matrix of water-insoluble carrier material. The encapsulating matrix is chosen so as to provide a delayed release of the oilfield chemical from the particles into surrounding fluid, such that oilfield chemical is liberated from the particles after they have entered the fracture. The encapsulating matrix may be a polymer which is at least partially amorphous, with a glass transition temperature below the reservoir temperature.
摘要翻译： 由井筒穿透的地下储层地层的水力压裂过程包括从表面经由井孔泵送压裂流体或其它含水流体并进入储层。 该流体是颗粒的水性悬浮液，每个颗粒包含分布在水不溶性载体材料的包封基质内的油田化学品。 选择密封基质以便将油田化学品从颗粒延迟释放到周围的流体中，使得油田化学品在进入裂缝之后从颗粒中释放出来。 封装基质可以是至少部分无定形的聚合物，其玻璃化转变温度低于储层温度。
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公开(公告)号：US20100307744A1
公开(公告)日：2010-12-09
申请号：US12477442
申请日：2009-06-03
申请人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
发明人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
IPC分类号： E21B43/26 , E21B47/00 , E21B43/267
摘要： A process for hydraulic fracturing of a subterranean reservoir formation penetrated by a wellbore includes pumping a fracturing fluid or other aqueous fluid which is an aqueous suspension of particles which each comprise an oilfield chemical distributed within an encapsulating matrix of water-insoluble carrier_material from the surface via the wellbore and into the reservoir. The encapsulating matrix is chosen so as to provide a delayed release of the oilfield chemical from the particles into surrounding fluid, such that oilfield chemical is liberated from the particles after they have entered the fracture. The encapsulating matrix may be a polymer which is at least partially amorphous, with a glass transition temperature below the reservoir temperature.
摘要翻译： 由井筒穿透的地下储层地层的水力压裂过程包括泵送压裂液或其它含水流体，其是颗粒的水性悬浮液，每个颗粒包含分布在水不溶性载体材料的包封基质内的油田化学物质，从表面通过 井筒进入水库。 选择密封基质以便将油田化学品从颗粒延迟释放到周围的流体中，使得油田化学品在进入裂缝之后从颗粒中释放出来。 封装基质可以是至少部分无定形的聚合物，其玻璃化转变温度低于储层温度。
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