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71. 发明授权

US08975217B2 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
标题翻译：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
申请人： B. Raghava Reddy , Rajesh K. Saini , Sherry G. Gaskins
发明人： B. Raghava Reddy , Rajesh K. Saini , Sherry G. Gaskins
IPC分类号： C09K8/60 , C09K8/68 , C09K8/72 , C09K8/528 , E21B33/13 , C09K8/70 , C09K8/88 , C09K8/92
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。

72. 发明授权

US08720562B2 Wellbore cementing compositions and methods of making and using same 失效
标题翻译：井筒固井组合物及其制备和使用方法
公开(公告)号：US08720562B2
公开(公告)日：2014-05-13
申请号：US12907209
申请日：2010-10-19
申请人： B. Raghava Reddy , Rahul Chandrakant Patil , Sandip Pati
发明人： B. Raghava Reddy , Rahul Chandrakant Patil , Sandip Pati
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。

73. 发明申请

US20130056199A1 LEWIS ACID AS GELATION RETARDER FOR CROSSLINKABLE POLYMER COMPOSITIONS 有权
标题翻译： 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
申请人： B. Raghava Reddy , Larry S. Eoff , Julio Estuardo Vasquez , Eldon Dwyann Dalrymple
发明人： B. Raghava Reddy , Larry S. Eoff , Julio Estuardo Vasquez , Eldon Dwyann Dalrymple
IPC分类号： C09K8/588 , E21B43/22
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。

74. 发明申请

US20120298357A1 Compositions and systems for combatting lost circulation and methods of using the same 有权
标题翻译：打击流通的组成和制度及其使用方法
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
IPC分类号： E21B43/16 , A47B43/00
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。

75. 发明申请

US20120231978A1 Permeability-Modifying Drilling Fluids and Methods of Use 审中-公开
标题翻译：渗透性修正钻井液及其使用方法
公开(公告)号：US20120231978A1
公开(公告)日：2012-09-13
申请号：US13477810
申请日：2012-05-22
申请人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
发明人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
IPC分类号： C09K8/20 , C09K8/24
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。

76. 发明申请

US20120214712A1 Methods of Using Polysaccharide Based Cement Additives 失效
标题翻译：多糖水泥添加剂的使用方法
公开(公告)号：US20120214712A1
公开(公告)日：2012-08-23
申请号：US13460533
申请日：2012-04-30
申请人： B. Raghava Reddy , Anindya Ghosh , Russell Fitzgerald
发明人： B. Raghava Reddy , Anindya Ghosh , Russell Fitzgerald
IPC分类号： C09K8/02 , C09K8/00 , C09K8/58 , C09K8/62 , C09K8/46 , C09K8/50
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。

77. 发明授权

US08202824B2 Variable density treatment fluids 有权
标题翻译：可变密度处理液
公开(公告)号：US08202824B2
公开(公告)日：2012-06-19
申请号：US12342856
申请日：2008-12-23
申请人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
发明人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
IPC分类号： C09K8/60
CPC分类号： C09K8/032 , B29C44/3496 , C04B20/002 , C04B28/02 , C04B2111/50 , C09K8/467 , C09K8/48 , Y02W30/92 , Y10T428/2982 , C04B14/24 , C04B20/0024 , C04B14/301 , C04B16/085 , C04B20/1051 , C04B16/08 , C04B18/082
摘要： The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid, and a portion of variable pressure weighting material particles.
摘要翻译：本发明提供了可变密度流体组合物和在地下地层中使用这种组合物的方法。本发明的可变密度流体组合物的一个示例性实施方案包括可变密度流体，其包含：基础流体和可变压力加权材料颗粒的一部分。

78. 发明申请

US20120090848A1 MODIFICATION OF SOLID POLYSACCHARIDE WITH TRANSESTERIFICATION AGENT 审中-公开
标题翻译：固体多糖与改性剂的改性
公开(公告)号：US20120090848A1
公开(公告)日：2012-04-19
申请号：US13070671
申请日：2011-03-24
申请人： B. Raghava Reddy
发明人： B. Raghava Reddy
IPC分类号： E21B43/25 , C09K8/68 , E21B43/26
CPC分类号： C09K8/08 , C09K8/40 , C09K8/514 , C09K8/68 , C09K8/685 , C09K8/90
摘要： Polysaccharides are reacted with transesterification agents forming modified products that: (1) have increased viscosifying efficiency, i.e., higher viscosities at reduced concentrations compared to the unmodified polysaccharide; or (2) are insolubilized at temperature ranges for which the unmodified polysaccharide would hydrate fully; or (3) both properties. In some cases, the insolubilized polysaccharides can be activated to dissolve and viscosify at specific temperature ranges by using pH modifiers. A method of treating a well is provided, including the steps of: (a) forming a treatment fluid comprising water and a modified polysaccharide, wherein the modified polysaccharide is characterized by having been made by the process of combining: (i) a water-soluble polysaccharide, wherein the polysaccharide is in a solid form during the combining step; and (ii) a transesterification agent, wherein the transesterification agent is in liquid form; wherein the step of combining is in the presence of less than 10% by weight water relative to the water-soluble polysaccharide and wherein any water present is at a pH of 8 or less; and (b) introducing the treatment fluid into the well.
摘要翻译：多糖与形成改性产物的酯交换剂反应，其中：（1）与未改性的多糖相比，具有增加的增粘效率，即降低浓度的较高粘度; 或（2）在未改性多糖将完全水合的温度范围内不溶; 或（3）两种性质。在一些情况下，不溶性多糖可以通过使用pH调节剂被活化以在特定温度范围溶解和粘稠。提供了一种处理井的方法，包括以下步骤：（a）形成包含水和改性多糖的处理流体，其中改性多糖的特征在于通过以下方法制备：（i）可溶性多糖，其中所述多糖在组合步骤期间为固体形式; 和（ii）酯交换剂，其中所述酯交换剂为液体形式; 其中组合步骤相对于水溶性多糖存在小于10重量％的水，并且其中存在的任何水的pH为8以下; 和（b）将处理流体引入井中。

79. 发明授权

US08119575B2 Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids 有权
标题翻译：用胶体烃流体处理地下地层的方法和组合物
公开(公告)号：US08119575B2
公开(公告)日：2012-02-21
申请号：US12011263
申请日：2008-01-25
申请人： Robert S. Taylor , Gary P. Funkhouser , Michael A. McCabe , B. Raghava Reddy
发明人： Robert S. Taylor , Gary P. Funkhouser , Michael A. McCabe , B. Raghava Reddy
IPC分类号： C09K8/00
CPC分类号： C09K8/64 , C09K8/82 , C09K2208/26
摘要： Among other things, methods of treating a subterranean formation with gelled hydrocarbon fluids are provided. In certain embodiments, these methods comprise the steps of providing a gelled liquid hydrocarbon treatment fluid comprising a liquid hydrocarbon and a gelling agent that comprises a polyvalent metal salt of an organophosphonic acid ester or a polyvalent metal salt of an organophosphinic acid, and treating the subterranean formation with the gelled liquid hydrocarbon treatment fluid. The gelled liquid hydrocarbon treatment fluids of the present invention are suitable for use in subterranean treatment operations, such as subterranean stimulation and sand control treatments like fracturing and gravel packing, that may be carried out in subterranean formations for the production of hydrocarbons. The compositions and methods of the present invention also may be suitable, for example, to be used as plugging agents, well bore cleanup fluids, viscous sweep fluids, or insulating fluids to be used in associated methods.
摘要翻译：其中，提供了用凝胶状烃流体处理地下地层的方法。在某些实施方案中，这些方法包括以下步骤：提供包含液体烃和胶凝剂的胶凝液体烃处理流体，其包含有机膦酸酯的多价金属盐或有机亚膦酸的多价金属盐，并处理地下用胶凝液化烃处理液形成。本发明的胶凝液化烃处理流体适用于地下处理操作，例如地层刺激和砂控制处理，如压裂和砾石填充，其可以在用于生产烃的地下地层中进行。本发明的组合物和方法也可适用于例如用作堵塞剂，井眼清洗液，粘性清洗流体或用于相关方法的绝缘流体。

80. 发明授权

US08053395B2 Compositions for increasing gas production from a subterranean formation 有权
标题翻译：用于从地层增加天然气产量的组合物
公开(公告)号：US08053395B2
公开(公告)日：2011-11-08
申请号：US11655403
申请日：2007-01-19
申请人： B. Raghava Reddy , Larry S. Eoff , Danhua Leslie Zhang , Eldon D. Dalrymple , Paul S. Brown
发明人： B. Raghava Reddy , Larry S. Eoff , Danhua Leslie Zhang , Eldon D. Dalrymple , Paul S. Brown
IPC分类号： C02F5/08 , E21B33/00 , C09K8/60
CPC分类号： C09K8/885
摘要： Exemplary embodiments provide treatment fluids for treating a subterranean formation to improve gas production therefrom. Exemplary embodiments of the treatment fluids comprise a base fluid and a cationic polyorganosiloxane, wherein the cationic polyorganosiloxane comprises at least two cationic quaternary ammonium groups.
摘要翻译：示例性实施例提供了用于处理地下地层以改善从其中产生气体的处理流体。处理流体的示例性实施方案包括基础流体和阳离子聚有机硅氧烷，其中阳离子聚有机硅氧烷包含至少两个阳离子季铵基团。

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