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11. 发明申请

US20120024526A1 Self-Diverting High-Rate Water Packs 有权
标题翻译：自助式高速水包装
公开(公告)号：US20120024526A1
公开(公告)日：2012-02-02
申请号：US13252373
申请日：2011-10-04
申请人： Feng Liang , Bradley L. Todd , Rajesh K. Saini
发明人： Feng Liang , Bradley L. Todd , Rajesh K. Saini
IPC分类号： E21B43/04
CPC分类号： C09K8/56 , C09K8/68 , C09K8/805 , E21B43/04
摘要： A method for diverting fluids across a perforation tunnel in high-rate water pack operations may include providing a wellbore extending into a subterranean formation, wherein a perforation tunnel provides a fluid connection between the wellbore and the subterranean formation; providing a diverting particulate that comprises a degradable plasticized polymer coating on a particulate; placing the diverting particulate into the perforation tunnel, wherein the step of placing the diverting particulate forms a particulate pack within the subterranean formation and the perforation tunnel; allowing the degradable plasticized polymer coating to deform and fill the interstitial spaces within the particulate pack in the perforation tunnel such that the fluid conductivity between the wellbore and the subterranean formation is substantially blocked; and allowing the plasticized polymer coating to degrade over time thereby substantially restoring the fluid conductivity between the wellbore and the subterranean formation.
摘要翻译：在高速水包装操作中将流体转移穿过穿孔隧道的方法可以包括提供延伸到地下地层中的井眼，其中穿孔在井筒和地下地层之间提供流体连接; 提供包含颗粒上的可降解塑化聚合物涂层的转向颗粒; 将转向颗粒放置到穿孔隧道中，其中放置转向颗粒的步骤在地层和穿孔隧道内形成颗粒状包装; 允许可降解塑化聚合物涂层变形并填充穿孔隧道内的颗粒包装内的间隙空间，使得井筒和地下地层之间的流体传导性基本上被阻挡; 并且允许塑化的聚合物涂层随着时间的推移而降解，从而基本上恢复井筒和地下地层之间的流体传导性。

12. 发明授权

US07926568B2 Non-acid acidizing methods and compositions 有权
标题翻译：非酸酸化方法和组合物
公开(公告)号：US07926568B2
公开(公告)日：2011-04-19
申请号：US11502285
申请日：2006-08-10
申请人： Rajesh K. Saini , Bradley L. Todd , David E. McMechan , Thomas D. Welton , Richard W. Pauls
发明人： Rajesh K. Saini , Bradley L. Todd , David E. McMechan , Thomas D. Welton , Richard W. Pauls
IPC分类号： E21B43/27 , E21B43/16
CPC分类号： E21B43/26 , C09K8/72
摘要： Methods of acidizing subterranean formations or well bores, and more specifically, to acidizing systems involving acid-generating fluids that comprise acid-generating compounds and associated methods are provided. An example of a method of the present invention comprises: providing an acid-generating fluid that comprises an acid-generating compound; placing the acid-generating fluid into a well bore penetrating a subterranean formation; and allowing the acid-generating compound to produce an acid that then acidizes at least a portion of the subterranean formation or damage contained in the formation or well bore.
摘要翻译：提供酸化地下地层或井眼的方法，更具体地说，涉及包含酸产生化合物和相关方法的产酸流体的酸化体系。本发明的方法的一个实例包括：提供包含产酸化合物的产酸流体; 将产酸流体置于贯穿地下地层的井眼中; 并且允许产酸化合物产生一种酸，然后酸化至少一部分地层或包含在地层或井眼中的损伤。

13. 发明申请

US20100273685A1 Methods and composition relating to the chemical degradation of degradable polymers 审中-公开
标题翻译：与可降解聚合物的化学降解相关的方法和组成
公开(公告)号：US20100273685A1
公开(公告)日：2010-10-28
申请号：US12386696
申请日：2009-04-22
申请人： Rajesh K. Saini , Bradley L. Todd
发明人： Rajesh K. Saini , Bradley L. Todd
IPC分类号： C09K8/60
CPC分类号： C09K8/508 , C09K8/035 , C09K8/68 , C09K8/72
摘要： Methods comprising: providing a degradable polymer within a portion of a subterranean formation; introducing a base solution into the portion of the subterranean formation, wherein the base solution comprises at least one base selected from the group consisting of: ammonium hydroxide, an alcoholic alkaline solution, and an alkaline amine solution, and derivatives thereof; and allowing the base solution to degrade the degradable polymer.
摘要翻译：方法包括：在地层的一部分内提供可降解的聚合物; 将碱溶液引入到地层的部分中，其中所述碱溶液包含至少一种选自氢氧化铵，醇碱性溶液和碱性胺溶液的碱及其衍生物; 并使碱溶液降解可降解聚合物。

14. 发明授权

US07216705B2 Methods of placing treatment chemicals 有权
标题翻译：处理化学品的处理方法
公开(公告)号：US07216705B2
公开(公告)日：2007-05-15
申请号：US11062943
申请日：2005-02-22
申请人： Rajesh K. Saini , Bradley L. Todd
发明人： Rajesh K. Saini , Bradley L. Todd
IPC分类号： E21B43/27 , E21B43/267 , E21B43/02
CPC分类号： C09K8/805 , C09K8/68 , C09K8/685 , C09K2208/26
摘要： Among the methods provided are methods of treating a subterranean formation comprising placing a solid treatment chemical and a tacky polymer onto a solid substrate to create a coated solid substrate; placing the coated solid substrate into a portion of a subterranean formation; and, allowing the tacky polymer to degrade and allowing the solid treatment chemical to be released into the portion of the subterranean formation. Also provided are methods of creating a particulate pack comprising a treatment chemical in a subterranean formation comprising placing a solid treatment chemical and a tacky polymer onto a particulate to create a coated particulate; creating a slurry comprising the coated particulates slurried into a treatment fluid; placing the slurry into a portion of a subterranean formation so as to create a particulate pack; and, allowing the tacky polymer to degrade and allowing the solid treatment chemical to be released into the portion of the subterranean formation.
摘要翻译：所提供的方法之一是处理地层的方法，包括将固体处理化学品和粘性聚合物置于固体基质上以产生涂覆的固体基质; 将涂覆的固体基质置于地层的一部分中; 并且允许粘性聚合物降解并使得固体处理化学品被释放到地层的部分中。还提供了在地下地层中产生包含处理化学物质的颗粒包装的方法，包括将固体处理化学品和粘性聚合物置于颗粒上以产生涂覆颗粒; 产生一种浆料，其包含浆料化成处理流体的被覆微粒; 将浆料放置在地层的一部分中以产生颗粒状包装; 并且允许粘性聚合物降解并使得固体处理化学品被释放到地层的部分中。

15. 发明授权

US07093664B2 One-time use composite tool formed of fibers and a biodegradable resin 有权
标题翻译：一次性复合工具由纤维和可生物降解的树脂形成
公开(公告)号：US07093664B2
公开(公告)日：2006-08-22
申请号：US10803668
申请日：2004-03-18
申请人： Bradley L. Todd , Rajesh K. Saini , Loren C. Swor , Phillip M. Starr
发明人： Bradley L. Todd , Rajesh K. Saini , Loren C. Swor , Phillip M. Starr
IPC分类号： E21B29/00
CPC分类号： E21B33/12 , E21B23/00
摘要： The present invention is directed to disposable composite downhole tool formed of a resin-coated fiber. The fiber is formed of a degradable polymer, such as a poly(lactide) or polyanhydride. The resin is formed of the same degradable polymer as the fiber. It chemically bonds to the fiber, thereby making a strong rigid structure once cured. The fiber may be formed into a fabric before being coated with the resin. Alternatively, the fiber is formed of a non-biodegradable material.
摘要翻译：本发明涉及由树脂涂覆纤维形成的一次性复合井下工具。纤维由可降解聚合物如聚（丙交酯）或聚酐形成。树脂由与纤维相同的可降解聚合物形成。它与纤维化学键合，从而在固化后形成坚固的刚性结构。纤维可以在涂覆树脂之前形成织物。或者，纤维由不可生物降解的材料形成。

16. 发明申请

US20130233546A1 Degradable Fluid Sealing Compositions Having an Adjustable Degradation Rate and Methods for Use Thereof 审中-公开
标题翻译：可降解流体密封组合物具有可调节的降解速率及其使用方法
公开(公告)号：US20130233546A1
公开(公告)日：2013-09-12
申请号：US13414269
申请日：2012-03-07
申请人： Feng Liang , Rajesh K. Saini , Bradley L. Todd , Stanley J. Heath
发明人： Feng Liang , Rajesh K. Saini , Bradley L. Todd , Stanley J. Heath
IPC分类号： E21B33/00
CPC分类号： C09K8/512 , C09K8/035
摘要： When performing subterranean treatment operations, it can be desirable to temporarily divert or block fluid flow by forming a degradable fluid seal. Methods for forming a degradable fluid seal can comprise: providing a sealing composition comprising: a degradable polymer, and a water-soluble material comprising a first portion and a second portion of rigid particulates, each portion having a sealing time and a particulate size distribution associated therewith, the particulate size distributions of the first portion and the second portion differing from one another; determining an amount of the first portion relative to the second portion needed to produce a degradable fluid seal having a desired sealing time that is different than that of the sealing time of either the first portion or the second portion; introducing the sealing composition into a subterranean formation; and allowing the sealing composition to form a degradable fluid seal in the subterranean formation.
摘要翻译：当进行地下处理操作时，可以期望通过形成可降解流体密封来临时转移或阻止流体流动。用于形成可降解流体密封件的方法可以包括：提供密封组合物，其包含：可降解聚合物和包含刚性颗粒的第一部分和第二部分的水溶性材料，每个部分具有密封时间和相关的颗粒尺寸分布由此，第一部分和第二部分的颗粒尺寸分布彼此不同; 确定产生具有与第一部分或第二部分的密封时间不同的期望密封时间的可降解流体密封件所需的相对于第二部分的第一部分的量; 将密封组合物引入地层; 并且允许密封组合物在地层中形成可降解的流体密封。

17. 发明申请

US20120189771A1 On-the-Fly Coating of Acid-Releasing Degradable Material Onto a Particulate 有权
标题翻译：酸释放可降解材料在颗粒上的即时涂层
公开(公告)号：US20120189771A1
公开(公告)日：2012-07-26
申请号：US13435400
申请日：2012-03-30
申请人： Rajesh K. Saini , Bradley L. Todd
发明人： Rajesh K. Saini , Bradley L. Todd
IPC分类号： B05D1/18
CPC分类号： C09K8/536 , C09K8/706 , C09K8/72 , C09K8/805 , E21B43/04
摘要： Methods of creating particulates coated with acid-releasing degradable material comprising the steps of: combining an acid-releasing degradable material with a solvent or a plasticizer to create a coating solution; providing a first flowing stream comprising the coating solution; providing a second flowing stream comprising particulates; and, combining the first and second flowing streams to create a third flowing stream comprising particulates coated with the coating solution. Wherein the acid-releasing degradable material comprises at least one acid-releasing degradable material selected from the group consisting of: poly(orthoester); a lactide, a poly(lactide); a glycolide; a poly(glycolide); a poly(ε-caprolactone); a poly(hydroxybutyrate); a substantially water insoluble anhydride; a poly(anhydride); a poly(amino acid); a copolymer of two or more of the above-listed compounds; and any combination thereof.
摘要翻译：制备涂有释放酸的可降解材料的颗粒的方法，包括以下步骤：将释放酸的可降解材料与溶剂或增塑剂结合以产生涂布溶液; 提供包含所述涂布溶液的第一流动流; 提供包含微粒的第二流动流; 以及组合第一和第二流动流以产生包含涂覆有涂层溶液的微粒的第三流动流。其中所述释放酸的可降解材料包含至少一种选自以下的释放酸的可降解材料：聚（原酸酯）; 丙交酯，聚（丙交酯）; 乙交酯; 聚（乙交酯）; 聚（ε-己内酯）; 聚（羟基丁酸酯）; 基本上不溶于水的酸酐; 聚（酸酐）; 聚（氨基酸）; 两种或更多种上述化合物的共聚物; 及其任何组合。

18. 发明授权

US07921912B2 Non-acid acidizing methods and compositions 有权
标题翻译：非酸酸化方法和组合物
公开(公告)号：US07921912B2
公开(公告)日：2011-04-12
申请号：US11502284
申请日：2006-08-10
申请人： Rajesh K. Saini , Bradley L. Todd , David E. McMechan , Thomas D. Welton , Richard W. Pauls
发明人： Rajesh K. Saini , Bradley L. Todd , David E. McMechan , Thomas D. Welton , Richard W. Pauls
IPC分类号： E21B43/25
CPC分类号： C09K8/72
摘要： Methods of acidizing subterranean formations or well bores, and more specifically, to acidizing systems involving acid-generating fluids that comprise acid-generating compounds and associated methods are provided. An example is a method that comprises: providing an acid-generating fluid that comprises an acid-generating compound; placing the acid-generating fluid into a subterranean formation; and allowing an acid to generate from the acid-generating fluid.
摘要翻译：提供酸化地下地层或井眼的方法，更具体地说，涉及包含产酸化合物和相关方法的产酸流体的酸化体系。一个实例是一种方法，其包括：提供包含酸产生化合物的产酸流体; 将产酸流体置于地层中; 并且允许酸从产酸流体产生。

19. 发明授权

US07677315B2 Degradable surfactants and methods for use 失效
标题翻译：可降解表面活性剂和使用方法
公开(公告)号：US07677315B2
公开(公告)日：2010-03-16
申请号：US11244345
申请日：2005-10-05
申请人： Rajesh K. Saini , Bradley L. Todd , Michael N. Mang
发明人： Rajesh K. Saini , Bradley L. Todd , Michael N. Mang
IPC分类号： E21B43/26
CPC分类号： B01F17/0028 , B01F17/005 , C09K8/604 , C09K8/68 , C09K8/72 , C09K8/74
摘要： The present invention provides a method of generating an acid downhole that comprise providing a degradable surfactant; introducing the degradable surfactant into a well bore that penetrates a subterranean formation; and allowing at least a portion of the degradable surfactant to degrade, thereby releasing an acid. Also provided are methods of degrading an acid-soluble component present within a subterranean formation, and methods of reducing the viscosity of a viscosified treatment fluid.
摘要翻译：本发明提供一种产生酸性井下的方法，其包括提供可降解的表面活性剂; 将可降解表面活性剂引入穿透地层的井眼中; 并使至少一部分可降解表面活性剂降解，从而释放酸。还提供了降解存在于地层内的酸溶性组分的方法以及降低稠化处理流体的粘度的方法。

20. 发明申请

US20090258801A1 Fluid-Loss Control Pills Comprising Breakers that Comprise Orthoesters and/or Poly(Orthoesters) and Methods of Use 有权
标题翻译：包含负离子和/或聚（正己酸酯）和使用方法的断路器的流体损失控制药丸
公开(公告)号：US20090258801A1
公开(公告)日：2009-10-15
申请号：US12488966
申请日：2009-06-22
申请人： Rajesh K. Saini , Karen Savery , Bradley L. Todd
发明人： Rajesh K. Saini , Karen Savery , Bradley L. Todd
IPC分类号： C09K8/70
CPC分类号： C09K8/506 , C09K8/512 , C09K8/514
摘要： Provided herein are methods and compositions for generating acids for use downhole, for example, to break fluid-loss control pills. The delayed-release acid breakers of the present invention comprise orthoesters and/or poly(orthoesters).
摘要翻译：本文提供了用于产生用于井下的酸的方法和组合物，例如以破坏流体损失控制药丸。本发明的延迟释放酸分离器包括原酸酯和/或聚（原酸酯）。

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