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101.发明授权Well drilling and servicing fluids and methods of removing filter cake deposited thereby 有权钻井和维修井液以及从中除去滤饼的方法公开(公告)号：US06422314B1
公开(公告)日：2002-07-23
申请号：US09629959
申请日：2000-08-01
IPC分类号： E21B3706
CPC分类号： C09K8/10 , C09K8/08 , C09K8/12 , C09K8/52 , C09K2208/18
摘要： Well drilling and servicing fluids for use in producing formations and methods of removing filter cake therefrom are provided. The methods basically comprise using a drilling or servicing fluid comprised of water, a density increasing water soluble salt, a fluid loss control agent, a hydratable polymer solid suspending agent and a particulate solid bridging agent which is soluble in an aqueous ammonium salt solution. Thereafter, the filter cake deposited by the drilling or servicing fluid is contacted with a clean-up solution comprised of water and an ammonium salt for a period of time such that the bridging agent is dissolved thereby.
摘要翻译： 提供了用于生产地层的钻井和维修液以及从其中除去滤饼的方法。 这些方法基本上包括使用由水，密度增加的水溶性盐，流体损失控制剂，可水合的聚合物固体悬浮剂和可溶于铵盐水溶液的颗粒状固体桥连剂组成的钻井或维修流体。 此后，由钻井或维修流体沉积的滤饼与由水和铵盐组成的清理溶液接触一段时间，以使桥连剂溶解。
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公开(公告)号：US06419016B1
公开(公告)日：2002-07-16
申请号：US09675644
申请日：2000-09-29
申请人： B. Raghava Reddy
发明人： B. Raghava Reddy
IPC分类号： E21B33138
CPC分类号： C04B28/02 , C04B24/28 , C04B2103/0072 , C04B2103/22 , C09K8/467 , Y10S507/905 , C04B14/06 , C04B38/10 , C04B2103/48
摘要： Improved methods of cementing in subterranean zones penetrated by well bores are provided. The methods are basically comprised of the steps of preparing a cement composition comprised of a hydraulic cement, a biodegradable, substantially non-dispersing set retarder of low anionic character comprised of polysuccinimide and sufficient water to form a slurry, placing said cement composition in said subterranean zone and allowing said cement composition to set into a solid mass therein.
摘要翻译： 提供了改进的穿孔井下地下区固井方法。 所述方法基本上包括以下步骤：制备水泥组合物，所述水泥组合物包含由聚琥珀酰亚胺和足够水形成浆料的低阴离子特性的水硬性水泥，可生物降解的，基本上不分散的阻滞剂，将所述水泥组合物置于所述地下 并使所述水泥组合物在其中固化成固体。
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103.发明授权Methods for cementing in a subterranean formation using a cement composition containing a set retarder of a polyester 有权使用含有聚酯的阻滞剂的水泥组合物在地下地层中固井的方法公开(公告)号：US09150774B2
公开(公告)日：2015-10-06
申请号：US13207647
申请日：2011-08-11
IPC分类号： C09K8/467 , C04B28/02 , C04B28/06 , C04B103/00 , C04B103/22 , C04B103/44
CPC分类号： C09K8/467 , C04B28/02 , C04B28/06 , C04B2103/0073 , C04B2103/22 , C04B2103/44 , C04B24/283
摘要： According to an embodiment, a cement composition for use in an oil or gas well, the cement composition comprises: cement; water; and a polymer, wherein the polymer: (i) comprises a monomer or monomers capable of forming a polyester; and (ii) is capable of providing a thickening time of at least 2 hours at a temperature of 400° F. (204.4° C.) and a pressure of greater than about 500 psi (3.4 MPa) for a test composition consisting essentially of: the cement; the water; and the polymer, and in the same proportions as in the cement composition. According to another embodiment, a method of cementing in a subterranean formation comprises: introducing the cement composition into the subterranean formation; and allowing the cement composition to set.
摘要翻译： 根据一个实施方案，用于油井或气井的水泥组合物，所述水泥组合物包括：水泥; 水; 和聚合物，其中所述聚合物：（i）包含能够形成聚酯的单体或单体; 和（ii）能够在400°F（204.4℃）的温度和大于约500psi（3.4MPa）的压力下提供至少2小时的增稠时间，所述测试组合物基本上由 ：水泥 水; 和聚合物，并且以与水泥组合物中相同的比例。 根据另一个实施例，一种在地层中固井的方法包括：将水泥组合物引入地层; 并允许水泥组合物固化。
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104.发明授权Methods and compositions for altering the viscosity of treatment fluids used in subterranean operations 有权用于改变地下作业中使用的处理液的粘度的方法和组合物公开(公告)号：US08877691B2
公开(公告)日：2014-11-04
申请号：US13343358
申请日：2012-01-04
IPC分类号： C09K8/68 , C09K8/86 , C09K8/035 , C09K8/502 , C09K8/506 , C09K8/508 , C09K8/64 , C09K8/82 , C09K8/88
CPC分类号： C09K8/86 , C09K8/035 , C09K8/502 , C09K8/506 , C09K8/5083 , C09K8/64 , C09K8/68 , C09K8/82 , C09K8/882 , C09K2208/30
摘要： Methods of decreasing the viscosity of a treatment fluid through contact with a cyclodextrin modifier. Such methods include providing a cyclodextrin modifier; providing a treatment fluid that comprises a base fluid and a viscosifying agent wherein the viscosifying agent is selected from the group consisting of a hydrophobically modified polymer, a viscoelastic surfactant, a phosphonate surfactant, or a combination thereof; and, introducing the cyclodextrin modifier and the treatment fluid into a well bore penetrating a subterranean formation wherein the viscosity of the treatment fluid is decreased due to the combination of the hydrophobically modified polymer and the cyclodextrin modifier.
摘要翻译： 通过与环糊精改性剂接触来降低处理流体的粘度的方法。 这些方法包括提供环糊精改性剂; 提供包含基础流体和增粘剂的处理流体，其中所述增粘剂选自疏水改性聚合物，粘弹性表面活性剂，膦酸盐表面活性剂或其组合; 并且将环糊精改性剂和处理流体引入穿透地层的井眼中，其中由于疏水改性聚合物和环糊精改性剂的组合，处理流体的粘度降低。
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105.发明申请Hydration Acceleration Surfactants in Conjunction with High Molecular Weight Polymers, and Methods and Compositions Relating Thereto 有权水合加速表面活性剂与高分子量聚合物的相互作用，以及与其相关的方法和组合物公开(公告)号：US20140048260A1
公开(公告)日：2014-02-20
申请号：US13586026
申请日：2012-08-15
摘要： A hydration acceleration surfactant may be utilized in conjunction with high molecular weight polymers in forming high viscosity, aqueous based treatment fluids. Forming such fluids may involve mixing an aqueous base fluid, a hydration acceleration surfactant, a crosslinker polymer, and a base polymer, thereby yielding a treatment fluid, wherein the base polymer is provided in the form of a first polymeric emulsion before mixing and/or the crosslinker polymer is provided in the form of a second polymeric emulsion before mixing. Further, such fluids may be useful in subterranean operations to perform for at least one function within the wellbore and/or the subterranean formation including bridge a fracture, provide fluid loss control, seal a rock surface, enable fluid diversion, plug a void, reduce formation permeability, control water production, and any combination thereof.
摘要翻译： 水合加速表面活性剂可以与高分子量聚合物结合使用，以形成高粘度，基于水的处理流体。 形成这样的流体可以包括混合水性基础流体，水合加速表面活性剂，交联剂聚合物和基础聚合物，从而产生处理流体，其中基础聚合物在混合之前以第一聚合物乳液的形式提供和/或 交联剂聚合物在混合之前以第二聚合物乳液的形式提供。 此外，这种流体可用于地下作业中以对井眼和/或地下地层中的至少一个功能进行，包括桥断裂，提供流体损失控制，密封岩石表面，使流体转向，堵塞空隙，减少 地层渗透性，控制水产量及其任何组合。
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106.发明授权Hydrophobically and cationically modified relative permeability modifiers and associated methods 有权疏水性和阳离子改性的相对渗透性改性剂和相关方法公开(公告)号：US08623793B2
公开(公告)日：2014-01-07
申请号：US13534166
申请日：2012-06-27
CPC分类号： C09K8/508
摘要： Methods comprising providing a relative permeability modifier that comprises a hydrophilic polymer backbone with a hydrophobic modification and incorporating at least one cationic compound onto the hydrophilic polymer backbone. The hydrophilic polymer is one or more of: a polyacrylamide; a polyvinylamine; a poly(vinylamine/vinyl alcohol); an alkyl acrylate polymer; cellulose; chitosan; a polyamide; a polyetheramine; a polyhydroxyetheramine; a polylysine; a polysulfone; a gum; or a starch. The hydrophobic modification is achieved either by reacting the hydrophilic polymer with a hydrophobic compound or by a polymerization reaction product of a hydrophilic monomer and a hydrophobically modified hydrophilic monomer. The hydrophobic compound has an alkyl chain length from 4 to 22 carbons and is one or more of: an alkyl acrylate; an alkyl methacrylate; an alkyl acrylamide; an alkyl methacrylamide; or an alkyl dimethylammoniumethyl methacrylate halide.
摘要翻译： 方法包括提供相对渗透性调节剂，其包含具有疏水性修饰的亲水性聚合物主链，并将至少一种阳离子化合物并入亲水性聚合物主链上。 亲水性聚合物是以下中的一种或多种：聚丙烯酰胺; 聚乙烯胺 聚（乙烯胺/乙烯醇）; 丙烯酸烷基酯聚合物; 纤维素; 壳聚糖; 聚酰胺; 聚醚胺 聚羟基胺; 聚赖氨酸 聚砜; 口香糖 或淀粉。 通过使亲水性聚合物与疏水化合物反应或通过亲水性单体和疏水改性的亲水性单体的聚合反应产物来实现疏水改性。 疏水性化合物的烷基链长度为4〜22个碳原子，为丙烯酸烷基酯中的一种或多种。 甲基丙烯酸烷基酯 烷基丙烯酰胺; 烷基甲基丙烯酰胺; 或甲基丙烯酸烷基二甲基铵乙酯卤化物。
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107.发明授权公开(公告)号：US08592353B2
公开(公告)日：2013-11-26
申请号：US13422646
申请日：2012-03-16
IPC分类号： C09K8/588
CPC分类号： C09K8/528 , C09K8/5083 , C09K8/74
摘要： Method of diverting fluids in a subterranean formation including the steps of providing a first fluid comprising an aqueous fluid and a hydrophobically modified water-soluble relative permeability modifier; introducing the first fluid into a well bore such that the first treatment fluid penetrates into a portion of the subterranean formation in a sufficient amount so as to substantially divert a second treatment fluid to another portion of the subterranean formation. Then, a second aqueous fluid is introduced into the well bore and substantially diverted from the portion of the subterranean formation penetrated with the first treatment fluid. In some cases, a well treatment operation, such as acid stimulation operation, a clay stabilization operation, or a scale inhibition operation, is performed using the second fluid.
摘要翻译： 在地层中转移流体的方法，包括提供包含含水流体和疏水改性的水溶性相对渗透性改性剂的第一流体的步骤; 将第一流体引入井眼，使得第一处理流体以足够的量渗入地下地层的一部分，以便将第二处理流体基本上转移到地下地层的另一部分。 然后，将第二含水流体引入井眼中，并且基本上从穿过第一处理流体的地层的部分转向。 在一些情况下，使用第二流体执行井处理操作，例如酸刺激操作，粘土稳定操作或防垢操作。
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公开(公告)号：US08569214B2
公开(公告)日：2013-10-29
申请号：US11755270
申请日：2007-05-30
CPC分类号： C09K8/10 , C04B24/38 , C04B28/02 , C08B31/04 , C08B31/06 , C08B31/18 , C08B31/185 , C08B37/0087 , C08L3/04 , C08L3/06 , C08L3/10 , C09K8/08 , C09K8/428 , C09K8/487 , C09K8/493 , C04B24/383 , C04B20/023
摘要： A method of servicing a wellbore comprising introducing to the wellbore a wellbore servicing fluid comprising an additive composition comprising a polysaccharide having carboxylate and sulfonate groups. A method of servicing a wellbore comprising preparing at the well site an additive composition comprising a polysaccharide having carboxylate and sulfonate groups, introducing the additive composition into a wellbore servicing fluid, and placing the wellbore servicing fluid into a subterranean formation. A method of preparing a wellbore servicing fluid comprising contacting a polysaccharide composition with an oxidizing agent to form an oxidized polysaccharide, and contacting the oxidized polysaccharide with a sulfonating agent to form a carboxylated sulfonated polysaccharide, and contacting the carboxylated sulfonated polysaccharide with a wellbore servicing fluid.
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公开(公告)号：US08383558B2
公开(公告)日：2013-02-26
申请号：US12357335
申请日：2009-01-21
CPC分类号： C09K8/5045 , C09K8/506 , C09K8/508
摘要： Sealant compositions comprising an alkali swellable latex and a pH increasing material and methods of using the same to service a wellbore are provided. In one embodiment, the sealant composition can be used in a wellbore and includes an alkali swellable latex and a pH increasing material. The sealant composition can have a pH of from about 7 to about 14. In other embodiments, the pH increasing material includes a base-producing material. The base-producing material can include alkali and alkali earth metal carbonates, alkali and alkali earth metal bicarbonates, alkali and alkali earth metal hydroxides, alkali and alkali earth metal oxides, alkali and alkali earth metal phosphates, alkali and alkali earth metal hydrogen phosphates, alkali and alkaline earth metal sulphides, alkali and alkaline earth metal salts of silicates, alkali and alkaline earth metal salts of aluminates, water soluble or water dispersible organic amines, polymeric amine, amino alcohols, or combinations thereof.
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110.发明申请Gellable Treatment Fluids Comprising Amino Group Gel-Time Modifiers and Methods for Use Thereof 有权包含氨基凝胶时间改性剂的胶凝治疗液及其使用方法公开(公告)号：US20130000905A1
公开(公告)日：2013-01-03
申请号：US13171718
申请日：2011-06-29
申请人： B. Raghava Reddy , Larry S. Eoff
发明人： B. Raghava Reddy , Larry S. Eoff
摘要： Methods for reducing the amount of water produced from a subterranean formation can include the use of a gellable treatment fluid that comprises a gel-time modifier comprising at least one amino group. The gellable treatment fluids can comprise an aqueous base fluid, a base polymer comprising an acrylamide monomer unit, an organic crosslinking agent, and a get-time modifier comprising at least one amino group.
摘要翻译： 用于减少从地层产生的水量的方法可以包括使用包含至少一个氨基的凝胶时间改性剂的可凝胶化处理液。 可凝胶化的处理流体可以包含含水基础流体，包含丙烯酰胺单体单元的基础聚合物，有机交联剂和包含至少一个氨基的吸附时间改性剂。
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