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1.发明授权Methods of fluid loss control, diversion, and sealing using deformable particulates 有权使用可变形颗粒的流体损失控制，引流和密封方法公开(公告)号：US08936086B2
公开(公告)日：2015-01-20
申请号：US13252349
申请日：2011-10-04
Applicant: Feng Liang , Bradley L. Todd , Thomas D. Welton , Rajesh K. Saini
Inventor： Feng Liang , Bradley L. Todd , Thomas D. Welton , Rajesh K. Saini
Abstract: Method including the steps of providing a treatment fluid that comprises a base fluid and polymeric particulates and introducing the treatment fluid into a subterranean formation having a temperature above about 65° C. The polymeric particulates comprise a degradable polymer and a plasticizer and exhibit a Tg above about −15° C. When the polymeric particulates are placed into a subterranean formation having a temperature above about 65° C. they transform from rigid form to malleable form and are able to provide fluid loss, seal the rock surfaces for fluid diversion, or plug an area along the annulus of a well bore. The malleable particulates then degrade over time in the subterranean formation.
Abstract translation: 方法包括提供包括基础流体和聚合物颗粒的处理流体并将处理流体引入温度高于约65℃的地下地层的步骤。聚合物颗粒包含可降解聚合物和增塑剂并且显示Tg高于 约-15℃。当将聚合物颗粒置于温度高于约65℃的地下地层中时，它们从刚性形式转变为可延展形式并且能够提供流体损失，密封岩石表面用于流体分流，或 沿着井眼的环带堵塞一个区域。 然后随着时间的推移，可延展的颗粒在地层中降解。
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2.发明授权Fluorosurfactants and treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods 有权用于还原水块，油块和/或气体冷凝物和相关方法的含氟表面活性剂和处理液公开(公告)号：US08772204B2
公开(公告)日：2014-07-08
申请号：US13417020
申请日：2012-03-09
Applicant: Lewis R. Norman , Rajesh K. Saini
Inventor： Lewis R. Norman , Rajesh K. Saini
Abstract: The present invention relates to fluids useful for subterranean operations, and more particularly, to fluorosurfactants useful for the reduction of water blocks, gas blocks, and/or gas condensates and their associated treatment fluids and methods. Provided is a method of treating a subterranean formation. The Method may comprise contacting the subterranean formation with a fluorosurfactant. The fluorosurfactant may comprise an amine group, wherein the amine group comprises at least one substituent selected from the group consisting of a fluoroalkyl group, a fluoroalkenyl group, and combinations thereof, wherein the at least one substituent comprises about 3 carbons to about 22 carbons. Also provided are polymeric surfactants and treatment fluids that comprise fluorosurfactants.
Abstract translation: 本发明涉及用于地下操作的流体，更具体地说，涉及用于还原水块，气体块和/或气体冷凝物及其相关处理流体和方法的含氟表面活性剂。 提供一种处理地层的方法。 该方法可以包括使地层与含氟表面活性剂接触。 含氟表面活性剂可以包含胺基，其中胺基包括至少一个选自氟代烷基，氟烯基及其组合的取代基，其中至少一个取代基包含约3个碳原子至约22个碳原子。 还提供了包含含氟表面活性剂的聚合物表面活性剂和处理流体。
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公开(公告)号：US08720555B2
公开(公告)日：2014-05-13
申请号：US13252373
申请日：2011-10-04
Applicant: Feng Liang , Bradley L. Todd , Rajesh K. Saini , Stanley J. Heath
Inventor： Feng Liang , Bradley L. Todd , Rajesh K. Saini , Stanley J. Heath
IPC: E21B43/25 , E21B43/267 , C09K8/80
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20130157901A1
公开(公告)日：2013-06-20
申请号：US13331441
申请日：2011-12-20
Applicant: James W. Ogle , Charm Boontheung , Rajesh K. Saini
Inventor： James W. Ogle , Charm Boontheung , Rajesh K. Saini
CPC classification number: C08F220/56 , C08F2/38 , C09K8/64 , C09K8/68 , C09K8/685 , C09K8/80 , C09K8/882
Abstract: The present invention relates to synthetic polymers having high molecular weight and low polydispersities, and methods of synthesis thereof. One embodiment of the present invention provides a method of polymerizing that includes dissolving acrylate monomers in a fluid media having an olefin-containing polyalcohol amide surfactant; and initiating a polymerization reaction of the acrylate monomers with a polymerization initiator to produce a polymer having a molecular weight of at least about 500,000 and a polydispersity index of about 1.25 or less.
Abstract translation: 本发明涉及具有高分子量和低多分散性的合成聚合物及其合成方法。 本发明的一个实施方案提供了一种聚合方法，其包括将丙烯酸酯单体溶解在具有含烯烃的多元醇酰胺表面活性剂的流体介质中; 并引发丙烯酸酯单体与聚合引发剂的聚合反应，以产生分子量为至少约500,000，多分散指数为约1.25或更小的聚合物。
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5.发明授权Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications 有权用于在井下井应用中使用的非常低的温度下破坏增粘聚合物的组合物和方法公开(公告)号：US08415278B2
公开(公告)日：2013-04-09
申请号：US13039777
申请日：2011-03-03
Applicant: Michael W. Sanders , Jeffrey L. Mundy , Fong Fong Foo , Rajesh K. Saini
Inventor： Michael W. Sanders , Jeffrey L. Mundy , Fong Fong Foo , Rajesh K. Saini
CPC classification number: C09K8/524 , C09K8/68 , C09K8/90 , C09K2208/26
Abstract: A composition for treating a portion of a wellbore or a portion of a subterranean formation is provided, the composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted to be within an appropriate range for the type of activator. A method for treating a portion of a wellbore or a portion of a subterranean formation, the method comprising the steps of: forming or providing a composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted within an appropriate range for the type of activator; and introducing the composition through a wellbore to treat a portion of a wellbore or a portion of a subterranean formation. The activator can be a water-soluble alkanoyl-donor compound or a chelated transition metal. Preferably, the composition further comprises an iron chelating agent. The composition and method are adapted for breaking a viscosity increasing polymer, such as xanthan. The method has particular applications where the static temperature of the portion of the wellbore or the portion of the subterranean formation to be treated is less than 100° F. (38° C.).
Abstract translation: 提供了一种用于处理一部分井孔或一部分地层的组合物，该组合物包含：（a）水; （b）过氧化氢源，和（c）用于过氧化氢源的活化剂; 其中将组合物的pH调节到活化剂类型的适当范围内。 一种用于处理井筒或地下地层的一部分的一部分的方法，所述方法包括以下步骤：形成或提供组合物，其包含：（a）水; （b）过氧化氢源，和（c）用于过氧化氢源的活化剂; 其中将组合物的pH调节到活化剂类型的适当范围内; 并通过井筒引入组合物以处理井筒或地下地层的一部分的一部分。 活化剂可以是水溶性烷酰基供体化合物或螯合过渡金属。 优选地，组合物还包含铁螯合剂。 该组合物和方法适用于破坏增粘聚合物如黄原胶。 该方法具有特定的应用，其中井眼部分或待处理的地下部分的静态温度小于100°F（38℃）。
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Patent Agency Ranking
6.发明申请Methods of Fluid Loss Control, Diversion, and Sealing Using Deformable Particulates 有权使用可变形颗粒的流体损失控制，引流和密封方法公开(公告)号：US20130081813A1
公开(公告)日：2013-04-04
申请号：US13252349
申请日：2011-10-04
Applicant: Feng Liang , Bradley L. Todd , Thomas D. Welton , Rajesh K. Saini
Inventor： Feng Liang , Bradley L. Todd , Thomas D. Welton , Rajesh K. Saini
IPC: E21B43/22
Abstract: Method including the steps of providing a treatment fluid that comprises a base fluid and polymeric particulates wherein the polymeric particulates comprise a degradable polymer and a plasticizer and exhibit a Tg above about −15° C.; introducing the treatment fluid into a subterranean formation having a temperature above about 65° C. such that the particulates transform from rigid to malleable form and are able to provide fluid loss, seal the rock surfaces for fluid diversion, or plug an area along the annulus of a well bore; and, degrading the malleable particulates over time in the subterranean formation.
Abstract translation: 方法包括提供包含基础流体和聚合物颗粒的处理流体的步骤，其中聚合物颗粒包含可降解聚合物和增塑剂，并且具有高于约-15℃的Tg。 将处理流体引入具有高于约65℃的温度的地下地层，使得颗粒从刚性变形为可延展形式并且能够提供流体损失，密封岩石表面用于流体分流，或者沿着环形空间 的井眼; 并且在地下地层中随着时间的推移降解可延展的颗粒物。
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公开(公告)号：US08309498B2
公开(公告)日：2012-11-13
申请号：US12566303
申请日：2009-09-24
Applicant: Gary P. Funkhouser , Rajesh K. Saini , Arnab Mukherjee
Inventor： Gary P. Funkhouser , Rajesh K. Saini , Arnab Mukherjee
IPC: C09K8/588
CPC classification number: C09K8/685 , C09K8/5756
Abstract: Of the many methods and compositions provided by this invention, one method a method of treating a subterranean formation, comprising: providing a treatment fluid comprising: an aqueous base fluid and a reaction product of a gelling agent comprising a copolymer or salt thereof comprising N-[tris(hydroxymethyl)methyl]acrylamide, 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, and acrylamide; and a crosslinking agent; and introducing the treatment fluid into a subterranean formation.
Abstract translation: 在本发明提供的许多方法和组合物中，一种处理地下地层的方法的方法包括：提供一种处理流体，该处理流体包括：基础水溶液和包含其共聚物或其盐的胶凝剂的反应产物，其包含N- [三（羟甲基）甲基]丙烯酰胺，2-丙烯酰胺基-2-甲基丙磺酸或其盐和丙烯酰胺; 和交联剂; 并将处理流体引入地层中。
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公开(公告)号：US20120004148A1
公开(公告)日：2012-01-05
申请号：US13229941
申请日：2011-09-12
Applicant: James W. Ogle , Jeremy Holtsclaw , Rajesh K. Saini
Inventor： James W. Ogle , Jeremy Holtsclaw , Rajesh K. Saini
Abstract: Treatment of a subterranean formation can be conducted with viscosified treatment fluids that comprise a multifunctional boronic acid crosslinking agent. Methods for treating a subterranean formation can comprise providing a treatment fluid that comprises an aqueous base fluid, a gelling agent, and a multifunctional boronic acid crosslinking agent that comprises a copolymer comprising at least one boronic acid monomer unit and at least one water-soluble monomer unit; and introducing the treatment fluid into a subterranean formation.
Abstract translation: 地层的处理可以用包含多官能硼酸交联剂的增稠处理流体进行。 用于处理地下地层的方法可以包括提供包含基础水溶液，胶凝剂和多官能硼酸交联剂的处理流体，所述交联剂包含至少一种硼酸单体单元和至少一种水溶性单体 单元; 并将处理流体引入地层中。
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公开(公告)号：US20110269651A1
公开(公告)日：2011-11-03
申请号：US12771973
申请日：2010-04-30
Applicant: Alexander Bismarck , Emilia M. Kot , Rajesh K. Saini
Inventor： Alexander Bismarck , Emilia M. Kot , Rajesh K. Saini
CPC classification number: C08F4/40 , C02F1/56 , C02F1/683 , C04B28/02 , C04B2103/0073 , C04B2103/0079 , C04B2103/0082 , C08F8/00 , C08F218/08 , C08F220/56 , C08F2800/10 , C08F2800/20 , C09K8/035 , C09K8/467 , C09K8/5083 , C09K8/588 , C09K8/68 , C09K8/882 , C09K2208/28 , C04B24/2652 , C04B24/2641 , C08F8/50
Abstract: Of the many embodiments presented herein, one is a subterranean treatment fluid comprising: an aqueous fluid; and a water-soluble degradable synthetic vinyl polymer having a labile link in its backbone. Also provided in one instance is a water-soluble degradable synthetic vinyl polymer with labile group in its backbone made by a redox polymerization, the redox polymerization reaction comprising these reactants: a macroinitiator that comprises a labile link, an oxidizing metal ion, and a vinyl monomer.
Abstract translation: 在本文提出的许多实施方案中，一种是地下处理流体，包括：含水流体; 和其主链具有不稳定连接的水溶性可降解合成乙烯基聚合物。 在一种情况下还提供了在其主链中通过氧化还原聚合制备的具有不稳定基团的水溶性可降解合成乙烯基聚合物，所述氧化还原聚合反应包括这些反应物：包含不稳定连接的大分子引发剂，氧化金属离子和乙烯基 单体。
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公开(公告)号：US07713916B2
公开(公告)日：2010-05-11
申请号：US11232504
申请日：2005-09-22
Applicant: Gary P. Funkhouser , Rajesh K. Saini
Inventor： Gary P. Funkhouser , Rajesh K. Saini
IPC: C09K8/60
CPC classification number: C09K8/035 , C07D493/10 , C09K8/602 , C09K8/68 , F17D1/17
Abstract: Provided are treatment fluids that comprise a base fluid and an orthoester-based surfactant. In some instances, the treatment fluid may have a pH of about 8.5 or greater. Also provided are emulsified treatment fluids that comprise an oleaginous phase, an aqueous phase having a pH of about 8.5 or greater, and an orthoester-based surfactant. Methods of using the treatment fluid and methods of facilitating flow through a conduit also are provided.
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