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1. 发明申请

US20120238663A1 Zero Shear Viscosifying Agent 有权
标题翻译：零剪切粘度剂
公开(公告)号：US20120238663A1
公开(公告)日：2012-09-20
申请号：US13485054
申请日：2012-05-31
申请人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
发明人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
IPC分类号： C09K8/467
CPC分类号： C09K8/12 , C04B28/02 , C09K8/22 , C09K8/467 , C09K8/487 , C04B22/0026 , C04B24/2652 , C04B24/282 , C04B2103/46 , C04B24/32
摘要： A treatment fluid comprising an aqueous liquid and an associative polymer additive. The associative polymer additive increases the plastic viscosity (PV) of an aqueous liquid by more than at least 50% and wherein the associative polymer additive increases the yield point (YP) by no more than about 30% of the corresponding increase in the PV relative to an aqueous liquid without the associative polymer additive. Moreover, the viscosity of the aqueous liquid comprising the associative polymer additive is capable of maintaining a viscosity of greater than about 20 cP for at least 20 minutes at temperatures higher than about 275° F. In some cases the associative polymer additive may be a hydrophobic alkoxylated aminoplast.
摘要翻译：一种包含水性液体和缔合聚合物添加剂的处理流体。缔合聚合物添加剂将水性液体的塑性粘度（PV）提高至多50％，并且其中缔合聚合物添加剂将屈服点（YP）增加不超过PV相对增加的约30％到没有缔合性聚合物添加剂的水性液体。此外，包含缔合聚合物添加剂的含水液体的粘度能够在高于约275°F的温度下保持大于约20cP的粘度至少20分钟。在一些情况下，缔合聚合物添加剂可以是疏水性的烷氧基化氨基塑料。

2. 发明申请

US20110232905A1 Zero Shear Viscosifying Agent 有权
标题翻译：零剪切粘度剂
公开(公告)号：US20110232905A1
公开(公告)日：2011-09-29
申请号：US12730419
申请日：2010-03-24
申请人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
发明人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
IPC分类号： E21B43/16 , C09K8/80
CPC分类号： C09K8/12 , C04B28/02 , C09K8/22 , C09K8/467 , C09K8/487 , C04B22/0026 , C04B24/2652 , C04B24/282 , C04B2103/46 , C04B24/32
摘要： This invention is generally related to using treatments fluids having additives that modify rheological characteristics. Some embodiments of the present invention provide methods of using treatment fluids comprising an aqueous fluid and an associative polymer additive, wherein the associative polymer additive increases the PV of the treatment fluid by more at least 50% and wherein the associative polymer additive increases the yield point by no more than about 30% of the corresponding increase in the PV relative to a treatment fluid without the associative polymer additive in a portion of a subterranean formation.
摘要翻译：本发明通常涉及使用具有改变流变特性的添加剂的处理液。本发明的一些实施方案提供了使用包含水性流体和缔合聚合物添加剂的处理流体的方法，其中缔合聚合物添加剂将处理流体的PV增加至少50％，并且其中缔合聚合物添加剂增加屈服点相对于在地层的一部分中没有缔合聚合物添加剂的处理流体，PV的相应增加不超过约30％。

3. 发明授权

US08905135B2 Zero shear viscosifying agent 有权
标题翻译：零剪增稠剂
公开(公告)号：US08905135B2
公开(公告)日：2014-12-09
申请号：US12730419
申请日：2010-03-24
申请人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
发明人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
IPC分类号： E21B43/26 , C09K8/12 , C09K8/22 , C04B28/02 , C09K8/467 , C09K8/487
CPC分类号： C09K8/12 , C04B28/02 , C09K8/22 , C09K8/467 , C09K8/487 , C04B22/0026 , C04B24/2652 , C04B24/282 , C04B2103/46 , C04B24/32
摘要： This invention is generally related to using treatment fluids having additives that modify rheological characteristics. Some embodiments of the present invention provide methods of using treatment fluids comprising an aqueous fluid and an associative polymer additive, wherein the associative polymer additive increases the PV of the treatment fluid by more than at least 50% and wherein the associative polymer additive increases the yield point by no more than about 30% of the corresponding increase in the PV relative to a treatment fluid without the associative polymer additive in a portion of a subterranean formation.
摘要翻译：本发明通常涉及使用具有改变流变特性的添加剂的处理流体。本发明的一些实施方案提供使用包含水性流体和缔合聚合物添加剂的处理流体的方法，其中缔合聚合物添加剂将处理流体的PV增加至多50％，并且其中缔合聚合物添加剂增加产率相对于在地下地层的一部分中没有缔合聚合物添加剂的处理流体，PV的相应增加不超过约30％。

4. 发明授权

US08623792B2 Zero shear viscosifying agent 有权
标题翻译：零剪增稠剂
公开(公告)号：US08623792B2
公开(公告)日：2014-01-07
申请号：US13485054
申请日：2012-05-31
申请人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
发明人： Benjamin J. Iverson , Ashok K. Santra , Priscilla T. Reyes
IPC分类号： C09K8/88
CPC分类号： C09K8/12 , C04B28/02 , C09K8/22 , C09K8/467 , C09K8/487 , C04B22/0026 , C04B24/2652 , C04B24/282 , C04B2103/46 , C04B24/32
摘要： A treatment fluid comprising an aqueous liquid and an associative polymer additive. The associative polymer additive increases the plastic viscosity (PV) of an aqueous liquid by more than at least 50% and wherein the associative polymer additive increases the yield point (YP) by no more than about 30% of the corresponding increase in the PV relative to an aqueous liquid without the associative polymer additive. Moreover, the viscosity of the aqueous liquid comprising the associative polymer additive is capable of maintaining a viscosity of greater than about 20 cP for at least 20 minutes at temperatures higher than about 275° F. In some cases the associative polymer additive may be a hydrophobic alkoxylated aminoplast.
摘要翻译：一种包含水性液体和缔合聚合物添加剂的处理流体。缔合聚合物添加剂将水性液体的塑性粘度（PV）提高至多50％，并且其中缔合聚合物添加剂将屈服点（YP）增加不超过PV相对增加的约30％到没有缔合聚合物添加剂的水性液体。此外，包含缔合聚合物添加剂的含水液体的粘度能够在高于约275°F的温度下保持大于约20cP的粘度至少20分钟。在一些情况下，缔合聚合物添加剂可以是疏水性的烷氧基化氨基塑料。

5. 发明申请

US20100218949A1 Swellable Elastomers and Associated Methods 有权
标题翻译：可膨胀弹性体和相关方法
公开(公告)号：US20100218949A1
公开(公告)日：2010-09-02
申请号：US12752371
申请日：2010-04-01
申请人： Anthony M. Badalamenti , Ashok K. Santra , John R. Podowski , Krishna M. Ravi , Gary Thomas Keene
发明人： Anthony M. Badalamenti , Ashok K. Santra , John R. Podowski , Krishna M. Ravi , Gary Thomas Keene
IPC分类号： E21B33/068
CPC分类号： C09K8/508 , C04B28/02 , C04B2103/46 , C09K8/035 , C09K8/40 , C09K8/473 , C09K8/487 , C09K8/68 , Y02W30/92 , C04B18/08 , C04B24/2611 , C04B24/30 , C04B2103/12 , C04B2103/22 , C04B2103/0049
摘要： Methods are provided that include a method of reducing fluid loss in a subterranean formation comprising placing a lost circulation composition comprising a base fluid and a swellable elastomer in at least a portion of a subterranean formation comprising a lost circulation zone; allowing the swellable elastomer to at least partially swell upon contact with a fluid; and allowing the lost circulation composition to at least partially reduce the loss of fluid to the subterranean formation. Additional methods are also provided.
摘要翻译：提供了包括减少地下地层中的流体损失的方法，包括将包含基础流体和可溶胀弹性体的缺失循环组合物放置在包含失水循环区的地下地层的至少一部分中的方法; 允许可溶胀弹性体在与流体接触时至少部分地膨胀; 并且允许流失组合物至少部分地减少到地下地层的流体损失。还提供了附加的方法。

6. 发明授权

US07699101B2 Well system having galvanic time release plug 有权
标题翻译：井系统具有电流时间释放塞
公开(公告)号：US07699101B2
公开(公告)日：2010-04-20
申请号：US11635159
申请日：2006-12-07
申请人： Michael L. Fripp , Haoyue Zhang , Luke W. Holderman , Deborah Fripp , Ashok K. Santra , Anindya Ghosh
发明人： Michael L. Fripp , Haoyue Zhang , Luke W. Holderman , Deborah Fripp , Ashok K. Santra , Anindya Ghosh
IPC分类号： E21B43/08
CPC分类号： E21B43/088 , E21B33/1208 , E21B33/134
摘要： A well system having a galvanic time release plug. A well system includes a flow passage and a flow blocking device which selectively obstructs flow through the passage, the device including an electrode in a galvanic cell. A flow blocking device for use in conjunction with a subterranean well includes a portion which delays an electrochemical reaction in a galvanic cell. A method of controlling fluid flow in a well system includes the steps of: obstructing flow through a passage using a flow blocking device which includes an electrode of a galvanic cell; and increasing flow through the passage by operation of the galvanic cell.
摘要翻译：具有电流时间释放塞的井系统。井系统包括流动通道和阻流装置，其选择性地阻碍通过通道的流动，该装置包括电流池中的电极。用于与地下井一起使用的阻流装置包括延迟电流池中的电化学反应的部分。一种控制井系统中的流体流动的方法包括以下步骤：通过使用包括原电池电极的阻流装置阻塞通过通道的流动; 并且通过操作电池增加通过通道的流动。

7. 发明授权

US07640985B2 Methods of directional drilling and forming kickoff plugs using self-degrading cement in subterranean well bores 有权
标题翻译：定向钻井和形成使用地下井孔中自降解水泥的起球塞的方法
公开(公告)号：US07640985B2
公开(公告)日：2010-01-05
申请号：US11188238
申请日：2005-07-22
申请人： Mark R. Savery , Ashok K. Santra , Bradley L. Todd
发明人： Mark R. Savery , Ashok K. Santra , Bradley L. Todd
IPC分类号： E21B33/13
CPC分类号： C09K8/68 , C04B28/30 , C04B28/34 , C04B2111/00284 , C09K8/665 , C09K8/74 , C04B14/304 , C04B14/366 , C04B24/06 , C04B38/04 , C04B40/0092
摘要： Methods of drilling a well bore in a subterranean formation comprising placing a self-degrading kickoff plug or the like in the well bore are provided. An example of a method is a method comprising: providing a self-degrading cement composition that comprises a degradable material, an acid source, a base source, and a water source; placing the self-degrading cement composition in a desired location in a well bore that penetrates a subterranean formation; and allowing the self-degrading cement composition to set to form a hardened kickoff plug.
摘要翻译：提供了在地下地层中钻井井的方法，包括将自降解启动塞等置于井眼中。方法的实例是一种方法，其包括：提供包含可降解材料，酸源，碱源和水源的自降解水泥组合物; 将自降解水泥组合物放置在穿透地下地层的井眼中的期望位置; 并允许自发降解的水泥组合物形成硬化的启动塞。

8. 发明授权

US07438758B2 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：US07438758B2
公开(公告)日：2008-10-21
申请号：US11780192
申请日：2007-07-19
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： C04B24/20
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。

9. 发明授权

US07407009B2 Methods of using cement compositions comprising phosphate compounds in subterranean formations 失效
标题翻译：在地层中使用包含磷酸盐化合物的水泥组合物的方法
公开(公告)号：US07407009B2
公开(公告)日：2008-08-05
申请号：US11014547
申请日：2004-12-16
申请人： Ashok K. Santra , Ronald J. Crook , Bobby J. King
发明人： Ashok K. Santra , Ronald J. Crook , Bobby J. King
IPC分类号： E21B33/138
CPC分类号： C04B28/342 , C09K8/424 , C09K8/487 , C09K8/5045 , C04B22/066 , C04B40/065 , C04B2103/22
摘要： Methods of using cement compositions comprising phosphate compounds in subterranean formations are provided. An example of a method is a method of cementing in a subterranean formation. Other examples of methods include methods of avoiding the loss of circulation in a subterranean formation. Other examples of methods include methods of drilling in a subterranean formation.
摘要翻译：提供了在地下地层中使用包含磷酸盐化合物的水泥组合物的方法。方法的一个实例是在地层中固井的方法。方法的其它实例包括避免地层中循环丧失的方法。方法的其它实例包括在地层中钻孔的方法。

10. 发明申请

US20080105428A1 Methods of servicing wellbore with composition comprising ultra low density thermatek® slurries 有权
标题翻译：用包含超低密度热塑性浆料的组合物维修井筒的方法
公开(公告)号：US20080105428A1
公开(公告)日：2008-05-08
申请号：US11592932
申请日：2006-11-03
申请人： Ashok K. Santra , Christopher L. Gordon
发明人： Ashok K. Santra , Christopher L. Gordon
IPC分类号： E21B33/13 , C09K8/60 , C09K8/05
CPC分类号： C04B9/04 , C04B28/32 , C04B28/34 , C09K8/426 , C09K8/428 , C09K8/473 , C09K8/5045 , C09K8/516 , C09K8/518 , C04B14/22 , C04B14/304 , C04B20/0036 , C04B38/10 , C04B2103/20 , C04B2103/44
摘要： A method of serving a wellbore comprising placing a slurry composition comprising an alkaline metal oxide, a chloride or phosphate salt, water, glass beads and a foaming agent into a wellbore and allowing the composition to set. A method of servicing a wellbore comprising foaming a slurry comprising magnesium oxide, water, a chloride or phosphate salt, and glass beads, wherein the slurry has a density of from about 4 to about 12 pounds per gallon, placing the slurry in a wellbore, and allowing the composition to set. A method of temporarily plugging a wellbore comprising placing in the wellbore a cement slurry comprising magnesium oxide, water, a chloride or phosphate salt, a foaming agent and beads, wherein the slurry has a density of from about 4 to about 12 pounds per gallon, allowing the composition to set, and removing the composition by contacting the set composition with acid.
摘要翻译：一种服务于井筒的方法，包括将包含碱金属氧化物，氯化物或磷酸盐，水，玻璃珠和发泡剂的浆料组合物放入井筒中并使组合物凝固。一种维修井孔的方法，包括使包含氧化镁，水，氯化物或磷酸盐的玻璃珠和玻璃珠发泡浆料，其中浆料的密度为每加仑约4至约12磅，将浆料置于井眼中，并允许组合物设定。一种临时堵塞井眼的方法，包括将井眼中的包含氧化镁，水，氯化物或磷酸盐，发泡剂和珠的水泥浆放置在井眼中，其中浆料的密度为每加仑约4至约12磅，允许组合物固化，并通过使该组合物与酸接触来除去组合物。

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