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21. 发明授权

US07543642B2 Cement compositions containing flexible, compressible beads and methods of cementing in subterranean formations 有权
标题翻译：含有柔性可压缩珠粒的水泥组合物和在地层中固井的方法
公开(公告)号：US07543642B2
公开(公告)日：2009-06-09
申请号：US10350533
申请日：2003-01-24
申请人： B. Raghava Reddy , Krishna M. Ravi , Michael J. Szymanski
发明人： B. Raghava Reddy , Krishna M. Ravi , Michael J. Szymanski
IPC分类号： E21B33/13
CPC分类号： C04B20/04 , C04B20/0032 , C04B28/02 , C09K8/42 , C09K8/46 , C09K8/473 , Y02W30/94 , C04B16/08 , C04B14/104 , C04B16/082 , C04B18/146 , C04B22/124 , C04B2103/20 , C04B2103/48 , C04B2103/50 , C04B24/2688 , C04B24/2641
摘要： Cement compositions comprising flexible, compressible beads, processes for preparing such cement compositions, and methods of cementing in subterranean formations using such cement compositions. One or more flexible, compressible beads are mixed with the cement before pumping the cement into a well bore. The flexible, compressible beads are preferably composed of an elastomeric material such as a copolymer of methylmethacrylate and acrylonitrile; a terpolymer of methylmethacrylate, acrylonitrile, and dichloroethane; a styrene-divinylbenzene copolymer; and polystyrene. The flexible, compressible beads may be heated to expand the beads before mixing with the cement such that the ensuing cement composition will have a desired density. Non-flexible beads such as spherulites may also be added to the cement compositions.
摘要翻译：包含柔性可压缩珠粒的水泥组合物，用于制备这种水泥组合物的方法，以及使用这种水泥组合物在地下地层中固井的方法。在将水泥泵入井眼之前，将一个或多个柔性可压缩的珠与水泥混合。柔性可压缩珠粒优选由弹性材料如甲基丙烯酸甲酯和丙烯腈的共聚物组成; 甲基丙烯酸甲酯，丙烯腈和二氯乙烷的三元共聚物; 苯乙烯 - 二乙烯基苯共聚物; 和聚苯乙烯。在与水泥混合之前，可以加热柔性可压缩珠粒以使珠粒膨胀，使得随后的水泥组合物具有所需的密度。也可以将非柔性珠如球晶添加到水泥组合物中。

22. 发明申请

US20090120642A1 METHODS TO ENHANCE GAS PRODUCTION FOLLOWING A RELATIVE-PERMEABILITY-MODIFIER TREATMENT 有权
标题翻译：相对渗透性改性剂处理方法提高气体生产
公开(公告)号：US20090120642A1
公开(公告)日：2009-05-14
申请号：US11985154
申请日：2007-11-14
申请人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple , Don M. Everett , Mauricio Gutierrez , Danhua Zhang
发明人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple , Don M. Everett , Mauricio Gutierrez , Danhua Zhang
IPC分类号： E21B43/267
CPC分类号： C09K8/885 , C09K8/5083 , C09K8/5086 , C09K8/602 , C09K8/882
摘要： Provided embodiments relate to introducing a water-drainage-rate-enhancing agent into a subterranean formation to enhance gas production following a relative-permeability-modifier treatment to decrease undesired water production. An exemplary embodiment provides a method of treating a subterranean formation such that initiation of gas production is enhanced following the treatment, the method comprising: introducing a relative-permeability modifier into at least a portion of the subterranean formation such that the relative-permeability modifier reduces permeability of the portion to aqueous fluids; and introducing a water-drainage-rate-enhancing agent into at least a portion of the subterranean formation. Another exemplary embodiment provides a treatment fluid comprising a carrier fluid, a relative-permeability modifier, and a water-drainage-rate-enhancing agent.
摘要翻译：所提供的实施方案涉及将引入排水速率的剂引入地层，以在相对渗透调节剂处理之后增强气体产生，以减少不期望的水分产生。一个示例性的实施方案提供了一种处理地层的方法，使得在处理之后使气体产生的开始得到增强，所述方法包括：将相对渗透性改性剂引入到地层的至少一部分中，使得相对渗透调节剂降低该部分对含水流体的渗透性; 并将排水速率增强剂引入所述地层的至少一部分。另一个示例性实施方案提供了包含载体流体，相对渗透性改性剂和排水速率增强剂的处理流体。

23. 发明授权

US07530396B1 Self repairing cement compositions and methods of using same 有权
标题翻译：自修水泥组合物及其使用方法
公开(公告)号：US07530396B1
公开(公告)日：2009-05-12
申请号：US12107416
申请日：2008-04-22
申请人： B. Raghava Reddy , Feng Liang , Russell M. Fitzgerald , David Meadows
发明人： B. Raghava Reddy , Feng Liang , Russell M. Fitzgerald , David Meadows
IPC分类号： E21B33/13
CPC分类号： C09K8/467 , C04B24/163 , C04B24/2641 , C04B24/2652 , C04B24/2676 , C04B24/42
摘要： A method of servicing a wellbore comprising placing a cement composition comprising a cementitious material, water, and an elastomeric material comprising a bonding polar group into a wellbore, and allowing the cement composition to set to form a set cement, wherein the elastomeric material has a phase transition temperature, exhibits cold flow behavior, or both at less than or equal to the bottom hole static temperature of the wellbore. A method of servicing a cased wellbore penetrating a formation, comprising introducing a self-repairing cementitious material into a wellbore, and allowing the cement to set, wherein upon a loss of structural integrity the set cement self-repairs, and wherein the loss of structural integrity comprises the formation of flow pathways for fluid migration in the cement and self-repair comprises obstructing potential pathways for fluid migration.
摘要翻译：一种维修井孔的方法，包括将包含粘结极性基团的水泥组合物，水和包含粘结极性基团的弹性体材料的水泥组合物放置在井眼中，并且允许水泥组合物凝固形成固定水泥，其中弹性体材料具有相转变温度，表现出冷流行为，或两者都小于或等于井眼的井底静态温度。一种对穿透地层的套管井眼进行维修的方法，包括将自修复的水泥质材料引入井眼中，并允许水泥固化，其中，在失去结构完整性的情况下，固定水泥自修复，并且其中结构损失完整性包括形成用于水泥中流体迁移的流动路径，并且自我修复包括阻碍流体迁移的潜在途径。

24. 发明授权

US07482309B2 Methods of drilling wellbores using variable density fluids comprising coated elastic particles 有权
标题翻译：使用包含涂层弹性颗粒的可变密度流体钻井孔的方法
公开(公告)号：US07482309B2
公开(公告)日：2009-01-27
申请号：US10721055
申请日：2003-11-24
申请人： Krishna M. Ravi , Donald L. Whitfill , B. Raghava Reddy
发明人： Krishna M. Ravi , Donald L. Whitfill , B. Raghava Reddy
IPC分类号： E21B21/00 , C09K8/24 , B01F3/12
CPC分类号： C09K8/03 , C09K8/536 , C09K8/70 , C09K8/92
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 elastic particles, the elastic particles having an isothermal compressibility factor in the range of from about 1.5×10−3 (1/psi) to about 1.5×10−9 (1/psi).
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; 和一部分弹性颗粒，弹性颗粒具有在约1.5×10 -3（1 / psi）至约1.5×10 -9（1 / psi）范围内的等温可压缩因子。

25. 发明授权

US07409991B2 Methods of using casing strings in subterranean cementing operations 有权
公开(公告)号：US07409991B2
公开(公告)日：2008-08-12
申请号：US11862329
申请日：2007-09-27
申请人： B. Raghava Reddy , Anthony M. Badalamenti , Simon Turton , Karl W. Blanchard , Ronald R. Faul , Michael G Crowder , Henry E. Rogers , James E. Griffith
发明人： B. Raghava Reddy , Anthony M. Badalamenti , Simon Turton , Karl W. Blanchard , Ronald R. Faul , Michael G Crowder , Henry E. Rogers , James E. Griffith
IPC分类号： E21B33/14
CPC分类号： E21B33/14 , C04B28/02 , C04B28/06 , C04B28/34 , C04B40/0658 , C09K8/467 , Y02W30/92 , Y02W30/94 , C04B14/108 , C04B18/08 , C04B18/141 , C04B22/0026 , C04B2103/22 , C04B22/16 , C04B7/32 , C04B14/104 , C04B18/146 , C04B20/002 , C04B22/0013 , C04B24/26 , C04B38/10 , C04B2103/44 , C04B2103/46 , C04B2103/50 , C04B24/122 , C04B38/02
摘要： Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of an activator. Another example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of a set retarder. An example of a method is a method of cementing in a subterranean formation. Other examples of methods are methods of cementing in a subterranean formation comprising a well bore.

26. 发明授权

US07325611B2 Cement compositions for reducing gas or water migration and methods of using the same 失效
标题翻译：用于还原气体或水迁移的水泥组合物及其使用方法
公开(公告)号：US07325611B2
公开(公告)日：2008-02-05
申请号：US11372001
申请日：2006-03-09
申请人： Ashok K. Santra , Mfon Anita , B. Raghava Reddy
发明人： Ashok K. Santra , Mfon Anita , B. Raghava Reddy
IPC分类号： E21B33/13
CPC分类号： C04B24/20 , C04B28/02 , C09K8/467 , C04B2103/50 , C04B24/163
摘要： A method of cementing a wellbore comprising preparing a cement composition comprising a water-soluble aromatic sulfonated polymer, and placing the cement composition into the wellbore, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having a comparable thickening time and lacking a water-soluble aromatic sulfonated polymer. A cement composition comprising a water-soluble aromatic sulfonated polymer, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having comparable thickening time and lacking a water-soluble aromatic sulfonated polymer.
摘要翻译：一种固井井的方法，包括制备包含水溶性芳族磺化聚合物的水泥组合物，并将该水泥组合物置于井筒中，其中该水泥组合物在比相似的水泥组合物更短的时间内产生大于约零的抗压强度具有可比较的增稠时间和缺乏水溶性芳香族磺化聚合物。一种水泥组合物，其包含水溶性芳族磺化聚合物，其中所述水泥组合物在比具有相当的增稠时间和不含水溶性芳族磺化聚合物的类似水泥组合物的时间内在较短的时间内产生大于约零的压缩强度。

27. 发明授权

US07303014B2 Casing strings and methods of using such strings in subterranean cementing operations 有权
标题翻译：在地下固井作业中使用这种弦的套管绳和方法
公开(公告)号：US07303014B2
公开(公告)日：2007-12-04
申请号：US10973618
申请日：2004-10-26
申请人： B. Raghava Reddy , Anthony M. Badalamenti , Simon Turton , Karl W. Blanchard , Ronald R. Faul , Michael G Crowder , Henry E. Rogers , James E. Griffith
发明人： B. Raghava Reddy , Anthony M. Badalamenti , Simon Turton , Karl W. Blanchard , Ronald R. Faul , Michael G Crowder , Henry E. Rogers , James E. Griffith
IPC分类号： E21B33/14 , E21B33/138
CPC分类号： E21B33/14 , C04B28/02 , C04B28/06 , C04B28/34 , C04B40/0658 , C09K8/467 , Y02W30/92 , Y02W30/94 , C04B14/108 , C04B18/08 , C04B18/141 , C04B22/0026 , C04B2103/22 , C04B22/16 , C04B7/32 , C04B14/104 , C04B18/146 , C04B20/002 , C04B22/0013 , C04B24/26 , C04B38/10 , C04B2103/44 , C04B2103/46 , C04B2103/50 , C04B24/122 , C04B38/02
摘要： Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of an activator. Another example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of a set retarder. An example of a method is a method of cementing in a subterranean formation. Other examples of methods are methods of cementing in a subterranean formation comprising a well bore.
摘要翻译：提供了改进的套管柱以及在地下固井操作中使用改进的套管柱的方法。装置的示例是包括至少一个管段和活化剂的递送系统的管柱。设备的另一示例是管柱，其包括至少一个管段和一组缓凝器的输送系统。方法的一个实例是在地层中固井的方法。方法的其它实例是在包括井眼的地下地层中固井的方法。

28. 发明授权

US07297664B2 Cement-free zeolite and fly ash settable fluids and methods therefor 失效
标题翻译：无水泥沸石和粉煤灰可固化流体及其方法
公开(公告)号：US07297664B2
公开(公告)日：2007-11-20
申请号：US10901507
申请日：2004-07-28
申请人： Ashok K. Santra , Karen Luke , B. Raghava Reddy
发明人： Ashok K. Santra , Karen Luke , B. Raghava Reddy
IPC分类号： C09K8/74 , E21B43/00
CPC分类号： C09K8/16
摘要： Zeolite and Class F fly ash compositions are provided for use as cement-free settable fluids such as settable spotting fluids and cementitious compositions.
摘要翻译：提供沸石和F级粉煤灰组合物用作无水泥的可固化流体，例如可固化点样液和水泥组合物。

29. 发明授权

US07290613B2 Cement compositions comprising aromatic sulfonated polymers and methods of using the same 有权
标题翻译：包含芳族磺化聚合物的水泥组合物及其使用方法
公开(公告)号：US07290613B2
公开(公告)日：2007-11-06
申请号：US10966937
申请日：2004-10-15
申请人： Ashok K. Santra , B. Raghava Reddy , Russell M. Fitzgerald
发明人： Ashok K. Santra , B. Raghava Reddy , Russell M. Fitzgerald
IPC分类号： E21B33/138
CPC分类号： C04B28/02 , C04B24/163 , C09K8/493
摘要： A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.
摘要翻译：维护渗透地下地层的井筒的方法包括将包含芳族磺化聚合物的水泥组合物置于井眼中并使水泥组合物凝固。在一个实施方案中，水泥组合物的过渡时间小于或等于约60分钟，或者小于或等于约50分钟，小于或等于约40分钟，小于或等于约30分钟，更少大于或等于约20分钟，或小于或等于约10分钟。因此，过渡时间可能足够短以在其组合之前抑制大量气体迁移到水泥组合物中。在另一个实施方案中，当水泥组合物组合时，水泥组合物表现出在大约10分钟或更短时间内从35Bc（Bearden单元）的值增加到约100Bc的粘度。

30. 发明授权

US07285166B2 Zeolite-containing cement composition 有权
标题翻译：含沸石的水泥组合物
公开(公告)号：US07285166B2
公开(公告)日：2007-10-23
申请号：US11126626
申请日：2005-05-11
申请人： Karen Luke , B. Raghava Reddy , Russell M. Fitzgerald , Frank Zamora , Glen C. Fyten , Keith A. Rispler , Donald A. Getzlaf , Dennis W. Gray , Sears T. Dealy
发明人： Karen Luke , B. Raghava Reddy , Russell M. Fitzgerald , Frank Zamora , Glen C. Fyten , Keith A. Rispler , Donald A. Getzlaf , Dennis W. Gray , Sears T. Dealy
IPC分类号： C04B7/00 , C04B14/00 , C04B14/04
CPC分类号： C09K8/487 , C04B14/047 , C04B28/02 , C04B2103/46 , C09K8/46 , C09K8/467 , C09K8/473 , Y02W30/92 , Y02W30/94 , C04B18/08 , C04B2103/10 , C04B2103/34 , C04B2103/50 , C04B20/1022 , C04B14/104 , C04B22/10 , C04B22/143 , C04B22/147 , C04B24/06 , C04B24/383 , C04B12/04 , C04B14/10 , C04B24/2623 , C04B24/2652 , C04B24/38 , C04B14/28 , C04B18/146 , C04B24/16 , C04B38/10 , C04B40/0039 , C04B2103/40
摘要： Methods and cement compositions are provided for sealing a subterranean zone penetrated by a wellbore, wherein the cement composition comprises zeolite, cementitious material, and a mixing fluid.
摘要翻译：提供方法和水泥组合物用于密封由井筒穿透的地下区域，其中所述水泥组合物包含沸石，水泥质材料和混合流体。

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