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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：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：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：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：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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7.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：US08479817B2
公开(公告)日：2013-07-09
申请号：US12810431
申请日：2008-12-23
申请人： Nikhil Shindgikar , Jesse Lee
发明人： Nikhil Shindgikar , Jesse Lee
CPC分类号： C09K8/40 , C09K8/03 , C09K8/12 , C09K8/32 , C09K8/487 , C09K8/502 , C09K8/504 , C09K8/80 , C09K2208/08
摘要： A system for curing lost circulation is made of fibers and a material able to stick fibers in a network when activated. Such activation can be temperature or pH change or both. The fibers can be metallic amorphous fibers, metallic non-amorphous fibers, glass fibers, carbon fibers, polymeric fibers and combinations thereof. The material can be a fiber coating or an additional material, for example polyvinyl alcohol, polyurethane and heat activated epoxy resin.
摘要翻译： 用于固化损失循环的系统由纤维和能够在活化时将纤维粘附在网络中的材料制成。 这种活化可以是温度或pH变化或两者。 纤维可以是金属无定形纤维，金属非无定形纤维，玻璃纤维，碳纤维，聚合物纤维及其组合。 该材料可以是纤维涂层或附加材料，例如聚乙烯醇，聚氨酯和热活化的环氧树脂。
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公开(公告)号：US08946133B2
公开(公告)日：2015-02-03
申请号：US13054605
申请日：2009-07-28
申请人： Jesse Lee , Nikhil Shindgikar
发明人： Jesse Lee , Nikhil Shindgikar
CPC分类号： C09K8/32 , C09K8/12 , C09K8/40 , C09K8/42 , C09K8/487 , C09K8/516 , C09K2208/08 , E21B21/003
摘要： A composition made of fibers and a material able to exhibit reverse solubility has utility for treating subterranean wells. The composition may used to cure lost circulation. The composition may be added to drilling fluids, spacer fluids or cement slurries. As the fluid temperature increases in a well, the reverse solubility material may precipitate and migrate to the fibers, causing the fibers to stick to each other and form a network, thereby forming a barrier that reduces further egress of treatment fluid from the wellbore.
摘要翻译： 由纤维制成的组合物和能够呈现相反溶解性的材料可用于处理地下井。 该组合物可用于治疗失水循环。 组合物可以加入钻井液，间隔液或水泥浆中。 当井中的流体温度升高时，反向溶解度物质可能沉淀并迁移到纤维中，导致纤维彼此粘附并形成网络，从而形成阻挡处理流体从井眼进一步排出的屏障。
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公开(公告)号：US09303474B2
公开(公告)日：2016-04-05
申请号：US13120254
申请日：2009-08-13
申请人： Nikhil Shindgikar , Jesse Lee
发明人： Nikhil Shindgikar , Jesse Lee
IPC分类号： C09K8/42 , C09K8/60 , E21B21/00 , C04B20/10 , C09K8/487 , C09K8/575 , E21B33/138 , E21B43/02
CPC分类号： E21B21/003 , C04B20/1033 , C04B20/1037 , C09K8/032 , C09K8/035 , C09K8/426 , C09K8/44 , C09K8/487 , C09K8/516 , C09K8/5751 , C09K2208/08 , E21B33/138 , C04B14/42 , C04B20/107 , C04B16/06
摘要： A composition, for use in treating oil wells, comprises fibers, hot melt adhesives and particulate solids. This composition has a wide range of applications including preventing or lessening lost circulation, wellbore strengthening or consolidation, controlling fluid loss, producing a “stress cage” effect, gravel packing, acting as an aid to cementing, and for proppant backflow control.
摘要翻译： 用于处理油井的组合物包括纤维，热熔粘合剂和颗粒固体。 该组合物具有广泛的应用范围，包括防止或减少流失，井眼加固或固结，控制流体损失，产生“应力笼”效应，砾石填充，作为固井辅助和支撑剂回流控制。
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