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公开(公告)号：US09518210B2
公开(公告)日：2016-12-13
申请号：US13460266
申请日：2012-04-30
申请人： Ryan G. Ezell , B. Raghava Reddy
发明人： Ryan G. Ezell , B. Raghava Reddy
CPC分类号： C09K8/5045 , C09K8/508 , C09K8/512
摘要： A method of servicing a wellbore in a subterranean formation comprising placing a first stream comprising a dilute solution of a metal acrylate into a lost circulation zone in the subterranean formation; placing a second stream comprising an activator into the lost circulation zone; and forming a lost circulation material upon contacting of the metal acrylate and the activator, wherein the lost circulation material forms in from about 0 to about 60 minutes. A method of servicing a wellbore in a subterranean formation comprising placing a composition comprising a dilute solution of a cross-linkable material and an encapsulated activator into a lost circulation zone in the subterranean formation; and allowing the composition to set.
摘要翻译： 一种在地下地层中维护井眼的方法，包括将包含金属丙烯酸酯的稀溶液的第一物流放置在地下地层的失水循环区中; 将包含活化剂的第二物流放入所述丢失循环区中; 以及在金属丙烯酸酯和活化剂接触时形成漏失循环材料，其中所述失水循环材料形成约0至约60分钟。 一种在地下地层中维护井眼的方法，包括将包含可交联材料的稀溶液和包封的活化剂的组合物放置在地层中的失水循环区域中; 并允许组合物设定。
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62.发明授权Gellable treatment fluids having adjustable gel times and methods associated therewith 有权可凝胶化处理液具有可调凝胶时间和与之相关的方法公开(公告)号：US09175206B2
公开(公告)日：2015-11-03
申请号：US13454827
申请日：2012-04-24
申请人： B. Raghava Reddy , Larry S. Eoff , Freddy Crespo
发明人： B. Raghava Reddy , Larry S. Eoff , Freddy Crespo
CPC分类号： C09K8/882 , C09K8/5083 , C09K8/512 , C09K8/887
摘要： Gellable treatment fluids may have their gel times modified by using a polymer mixture therein that contains two or more polymers having disparate average molecular weights. Methods for treating a subterranean formation using such gellable treatment fluids can comprise providing a gellable treatment fluid comprising a polymer mixture and a crosslinking agent, introducing the gellable treatment fluid into a subterranean formation, and allowing the gellable treatment fluid to form a gel in the subterranean formation. The polymer mixture comprises a base polymer and an addend polymer, where the base polymer and the addend polymer each comprise an acrylamide monomer unit or a derivative thereof and have different average molecular weights, such that a molecular weight distribution of the polymer mixture contains at least two local maxima.
摘要翻译： 可凝胶化处理液可以通过使用其中含有两种或更多种具有不同平均分子量的聚合物的聚合物混合物来改变凝胶时间。 使用这种可胶凝处理流体处理地下地层的方法可以包括提供包含聚合物混合物和交联剂的可凝胶化处理流体，将可凝胶化处理流体引入地层，并允许可凝胶化处理流体在地下形成凝胶 形成。 聚合物混合物包含基础聚合物和加成聚合物，其中基础聚合物和加成聚合物各自包含丙烯酰胺单体单元或其衍生物，并且具有不同的平均分子量，使得聚合物混合物的分子量分布至少包含 两个本地最大值。
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63.发明授权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可凝胶化处理液及其使用方法公开(公告)号：US09090811B2
公开(公告)日：2015-07-28
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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64.发明授权Hydration acceleration surfactants in conjunction with high molecular weight polymers, and methods and compositions relating thereto 有权与高分子量聚合物结合的水合加速表面活性剂，以及与其相关的方法和组合物公开(公告)号：US09051506B2
公开(公告)日：2015-06-09
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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65.发明授权Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound capable of forming a chelating agent to uncross-link the polymer 有权用交联的水溶性聚合物复合金属阳离子网络和能够形成螯合剂以使聚合物交联的芳族化合物处理孔的方法公开(公告)号：US08975217B2
公开(公告)日：2015-03-10
申请号：US12490099
申请日：2009-06-23
CPC分类号： C09K8/706 , C09K8/685 , C09K8/887 , C09K8/92 , C09K2208/26
摘要： Methods are provided for treating a portion of a well. The method according to this aspect comprises the steps of: (A) forming a treatment fluid, the treatment fluid comprising: (i) water; (ii) a water-soluble polymer; (iii) a complexed metal cation that: (a) has a valence state of at least three; and (b) is capable of cross-linking the water-soluble polymer; and (iv) an aromatic compound that is capable of dissolving, melting, or chemically decomposing, dissociating, or reacting, to form a chelating agent, wherein the chelating agent comprising vicinal substituents containing donor heteroatoms, and wherein the chelating agent is capable of chelating the metal cation; and (B) introducing the treatment fluid into the well.
摘要翻译： 提供了处理井的一部分的方法。 根据该方面的方法包括以下步骤：（A）形成处理流体，所述处理流体包括：（i）水; （ii）水溶性聚合物; （iii）络合的金属阳离子：（a）具有至少三价的价态; 和（b）能够交联水溶性聚合物; 和（iv）能够溶解，熔融或化学分解，解离或反应形成螯合剂的芳族化合物，其中所述螯合剂包含含有供体杂原子的连位取代基，并且其中所述螯合剂能够螯合 金属阳离子; 和（B）将处理流体引入井中。
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公开(公告)号：US08720562B2
公开(公告)日：2014-05-13
申请号：US12907209
申请日：2010-10-19
IPC分类号： E21B33/13
CPC分类号： C09K8/467 , C04B24/38 , C04B24/383 , C04B28/02 , C09K8/487 , C04B20/023 , C04B20/04
摘要： A method of cementing a wellbore comprising preparing a wellbore cementing composition comprising a cementitious materials and a modified biopolymer additive wherein the modified biopolymer additive is the reaction product of a process comprising contacting a biopolymer and an organic carbonate to form a reaction mixture and subjecting the reaction mixture to a temperature of from about 100° F. to about 250° F. and placing the wellbore cementing fluid in the wellbore. A method of cementing a wellbore comprising contacting a modified biopolymer additive with a cementitious slurry to produce a wellbore cementing composition having an initial viscosity, v0; placing the wellbore cementing composition to a desired depth in a subterranean formation wherein the wellbore cementing composition has a transitional viscosity, vt, during placement in the subterranean formation and a final viscosity, vf, at the desired depth wherein vf≧vt>v0; and allowing the wellbore cementing composition to set.
摘要翻译： 一种固井井的方法，包括制备包含水泥质材料和改性生物聚合物添加剂的井眼胶结组合物，其中改性生物聚合物添加剂是包括使生物聚合物和有机碳酸酯接触以形成反应混合物并使反应 混合物至约100°F至约250°F的温度，并将井眼固井液置于井筒中。 一种固井井的方法，包括使改性的生物聚合物添加剂与水泥浆料接触以产生具有初始粘度v0的井眼胶结组合物; 将井眼胶结剂组合物放置在地下地层中所需的深度，其中井眼胶结剂组合物在放置在地层中时具有过渡粘度vt，并且在期望深度处具有最终粘度vf，其中vf≥vt> v0; 并允许井筒固井组合物固化。
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67.发明申请LEWIS ACID AS GELATION RETARDER FOR CROSSLINKABLE POLYMER COMPOSITIONS 有权LEWIS ACID作为可交联聚合物组合物的凝胶阻滞剂公开(公告)号：US20130056199A1
公开(公告)日：2013-03-07
申请号：US13665151
申请日：2012-10-31
CPC分类号： C09K8/512 , C09K8/5083 , C09K8/882 , C09K8/887
摘要： A treatment fluid for a well including: (a) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (b) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (c) a Lewis acid; and (d) water; wherein the treatment fluid is a crosslinkable polymer composition. According to an embodiment, a method for blocking the permeability of a portion of a subterranean formation penetrated by a wellbore is provided, the method including the steps of: (a) selecting the portion of the subterranean formation to be treated; (b) selecting estimated treatment conditions, wherein the estimated treatment conditions comprise temperature over a treatment time; (c) forming the treatment fluid; and (d) injecting the treatment fluid through the wellbore into the portion of the subterranean formation.
摘要翻译： 一种用于井的处理流体，包括：（a）水溶性聚合物，其中所述水溶性聚合物包含至少一种非酸性烯属不饱和极性单体的聚合物; （b）包含胺基的有机交联剂，其中所述有机交联剂能够交联所述水溶性聚合物; （c）路易斯酸; 和（d）水; 其中所述处理流体是可交联聚合物组合物。 根据一个实施例，提供了一种用于阻挡由井眼穿透的地下地层的一部分渗透性的方法，所述方法包括以下步骤：（a）选择待处理的地层的部分; （b）选择估计的治疗条件，其中估计的治疗条件包括治疗时间以上的温度; （c）形成处理液; 和（d）将处理流体通过井眼注入到地层的部分中。
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68.发明申请公开(公告)号：US20120298357A1
公开(公告)日：2012-11-29
申请号：US13460266
申请日：2012-04-30
申请人： Ryan G. Ezell , B. Raghava Reddy
发明人： Ryan G. Ezell , B. Raghava Reddy
CPC分类号： C09K8/5045 , C09K8/508 , C09K8/512
摘要： A method of servicing a wellbore in a subterranean formation comprising placing a first stream comprising a dilute solution of a metal acrylate into a lost circulation zone in the subterranean formation; placing a second stream comprising an activator into the lost circulation zone; and forming a lost circulation material upon contacting of the metal acrylate and the activator, wherein the lost circulation material forms in from about 0 to about 60 minutes. A method of servicing a wellbore in a subterranean formation comprising placing a composition comprising a dilute solution of a cross-linkable material and an encapsulated activator into a lost circulation zone in the subterranean formation; and allowing the composition to set.
摘要翻译： 一种在地下地层中维护井眼的方法，包括将包含金属丙烯酸酯的稀溶液的第一物流放置在地下地层的失水循环区中; 将包含活化剂的第二物流放入所述丢失循环区中; 以及在金属丙烯酸酯和活化剂接触时形成漏失循环材料，其中所述失水循环材料形成约0至约60分钟。 一种在地下地层中维护井眼的方法，包括将包含可交联材料的稀溶液和包封的活化剂的组合物放置在地层中的失水循环区域中; 并允许组合物设定。
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公开(公告)号：US20120231978A1
公开(公告)日：2012-09-13
申请号：US13477810
申请日：2012-05-22
CPC分类号： C09K8/508 , C09K8/035 , C09K8/5083 , C09K8/5086 , C09K8/514 , C09K8/68 , C09K8/72
摘要： Drilling fluids comprising a base fluid and a hydrophobically modified polymer. The hydrophobically modified polymer consisting of alkyl chains having a carbon chain length between about 4 and about 22 carbons bound to a hydrophilic polymer. The hydrophilic polymer (1) consists of a polymer backbone that contains polar heteroatoms, at least one of which is not a nitrogen atom, and at least a portion of the polar heteroatoms are functionalized with the alkyl chains; and, (2) comprises at least one hydrophilic polymer selected from the group consisting of a cellulose, a chitosan, a polyetheramine, a polyhydroxyetheramine, a polylysine, and a polysulfone.
摘要翻译： 包含基础流体和疏水改性聚合物的钻井流体。 由碳链长约4至约22个碳原子的烷基链组成的疏水改性聚合物与亲水性聚合物结合。 亲水性聚合物（1）由包含极性杂原子的聚合物主链组成，其中至少一个不是氮原子，并且至少一部分极性杂原子被烷基链官能化; 和（2）包含至少一种选自纤维素，壳聚糖，聚醚胺，聚羟基醚胺，聚赖氨酸和聚砜的亲水性聚合物。
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公开(公告)号：US20120214712A1
公开(公告)日：2012-08-23
申请号：US13460533
申请日：2012-04-30
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.
摘要翻译： 一种维修井孔的方法，包括向井筒引入井筒维修流体，其包括含有具有羧酸盐和磺酸盐基团的多糖的添加剂组合物。 一种维修井眼的方法，包括在井位处制备包含具有羧酸盐和磺酸盐基团的多糖的添加剂组合物，将添加剂组合物引入井筒维修流体中，以及将井筒维修流体放入地下地层中。 一种制备井筒维修流体的方法，包括使多糖组合物与氧化剂接触以形成氧化多糖，并使氧化多糖与磺化剂接触以形成羧化磺化多糖，并使羧化磺化多糖与井筒维修液接触 。
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