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公开(公告)号：US07216709B2
公开(公告)日：2007-05-15
申请号：US10975730
申请日：2004-10-28
摘要： The present invention generally relates to a method for treating a subterranean formation with an aqueous viscoelastic treating fluid that an aqueous base fluid and one or more non-ionic amido amine oxide surfactant gelling agents. The treatment method comprises injecting the aqueous viscoelastic surfactant treating fluid through a wellbore and into the subterranean formation under conditions effective to control fluid loss, and breaking the gel of the aqueous viscoelastic treating fluid subsequent to treating said formation.
摘要翻译： 本发明一般涉及一种用含水基础液体和一种或多种非离子酰胺氧化胺表面活性剂胶凝剂的水性粘弹性处理液处理地层的方法。 处理方法包括在有效控制流体损失的条件下将水性粘弹性表面活性剂处理流体注入井眼并进入地层，并在处理所述地层之后破坏水性粘弹性处理流体的凝胶。
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2.发明授权Composition and method for diversion agents for acid stimulation of subterranean formations 失效用于地下地层酸刺激的转移剂的组成和方法公开(公告)号：US06994166B2
公开(公告)日：2006-02-07
申请号：US10602230
申请日：2003-06-24
申请人： Tianping Huang , Paul M. McElfresh
发明人： Tianping Huang , Paul M. McElfresh
IPC分类号： E21B43/27 , E21B33/138
CPC分类号： C09K8/72 , Y10S507/933
摘要： It has been discovered that solid, particulate dicarboxylic acids are useful as diverting agents in methods for acidizing subterranean formations to improve the uniformity of the acid treatments (acid displacement) by diverting acid to intervals of relatively less permeability. Particularly suitable solid, particulate dicarboxylic acids include, but are not necessarily limited to, those insoluble in both aqueous and hydrocarbon liquids, but which are soluble in mutual solvents or alcohol blends. These acids may have melting points of from about 180 to about 300° F. (about 82 to about 149° C.), formula molecular weights of from 146 to 400, and mesh sizes of from about 20 mesh to about 400 mesh (about 841 to about 38 microns). Particular dicarboxylic acids that fit this description include, but are not necessarily limited to, dodecanedioic acid, undecanedioic acid, decanedioic acid, azelaic acid, suberic acid, and mixtures thereof.
摘要翻译： 已经发现，固体颗粒二羧酸在用于酸化地下地层的方法中可用作转向剂，以通过将酸转移到相对较小渗透性的间隔来改善酸处理的均匀性（酸置换）。 特别合适的固体颗粒二羧酸包括但不一定限于不溶于水和烃液体但可溶于相互溶剂或醇共混物的那些。 这些酸可以具有约180至约300°F（约82至约149℃）的熔点，146至400的分子式分子量和约20目至约400目（约 841至约38微米）。 符合该描述的特定二羧酸包括但不一定限于十二烷二酸，十一烷二酸，癸二酸，壬二酸，辛二酸及其混合物。
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公开(公告)号：US07926565B2
公开(公告)日：2011-04-19
申请号：US12250062
申请日：2008-10-13
申请人： Ping Duan , Paul M. McElfresh
发明人： Ping Duan , Paul M. McElfresh
IPC分类号： E21B43/08
CPC分类号： E21B43/082
摘要： Filtration devices may include a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may include an open cell porous rigid polyurethane foam material held in the compressed run-in position at the temperature below glass transition temperature (Tg). The foam material in its compressed run-in position may be covered with a fluid-dissolvable polymeric film and/or a layer of fluid-degradable plastic. Once filtration devices are in place in downhole and are contacted by the fluid for a given amount of time at temperature, the devices may expand and totally conform to the borehole to prevent the production of undesirable solids from the formation.
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公开(公告)号：US07708073B2
公开(公告)日：2010-05-04
申请号：US12042499
申请日：2008-03-05
IPC分类号： E21B43/24
CPC分类号： E21B43/08 , E21B36/008 , E21B36/02
摘要： A screen assembly has a material that conforms to the borehole shape after insertion. The assembly comprises a compliant layer that takes the borehole shape on expansion. The outer layer is formed having holes to permit production flow. The selected conforming material swells with heat, and in one non-limiting embodiment comprises a shape memory foam that is thermoset or thermoplastic. Heat is provided by supplying a fuel (including an oxidant) to a catalyst in close proximity to the compliant layer so that the product from the catalytic reaction is heated steam which contacts and deploys the conforming material. The base pipe can have a screen over it to act as an underlayment for support of the conforming layer or alternatively for screening.
摘要翻译： 屏幕组件具有在插入后符合钻孔形状的材料。 组件包括在膨胀时采用钻孔形状的柔顺层。 外层形成有孔以允许生产流动。 所选择的适形材料随着热量膨胀，并且在一个非限制性实施例中包括热固性或热塑性的形状记忆泡沫。 通过将紧密接近柔性层的催化剂供给燃料（包括氧化剂）来提供热量，使得来自催化反应的产物是加热的蒸汽，其接触并展开适形材料。 基管可以有一个屏幕，用作支撑合适层或替代筛选的底层。
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公开(公告)号：US20080185146A1
公开(公告)日：2008-08-07
申请号：US11701930
申请日：2007-02-03
IPC分类号： E21B43/04
CPC分类号： E21B43/04
摘要： The invention adds a friction reducing agent or agents to gravel slurry to decrease pressure required for proper fluid velocities so as to obtain the desired gravel propagation in an annular space around a screen assembly.
摘要翻译： 本发明将减摩剂或试剂添加到砾石浆料中以减小适当流体速度所需的压力，以便在丝网组件周围的环形空间中获得所需的砾石传播。
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6.发明授权Additives for hydrate inhibition in fluids gelled with viscoelastic surfactants 有权用粘弹性表面活性剂胶凝的流体中的水合物抑制添加剂公开(公告)号：US07879767B2
公开(公告)日：2011-02-01
申请号：US11141492
申请日：2005-05-31
IPC分类号： E21B43/27
CPC分类号： C09K8/68 , C09K8/52 , C09K2208/22 , C09K2208/30 , C10L7/00
摘要： An aqueous, viscoelastic fluid gelled with a viscoelastic surfactant (VES) is inhibited against hydrate formation with an effective amount of an additive that could be one or more halide salts of alkali metals and alkali earth metals, formate salts, alcohols, glycols, glycol amines, sugars, sugar alcohols, amidoamine oxides, polymers such as polyamines, polyvinylpyrrolidones and derivatives thereof, polyvinyl alcohols and derivatives thereof, polycaprolactams and derivatives thereof, hydroxyethylcellulose, and mixtures thereof. These fluids are inhibited against hydrate formation and may have increased viscosity as well. The additives may increase viscosity to the point where less VES is required to maintain a given viscosity. These inhibited, aqueous, viscoelastic fluids may be used as treatment fluids for subterranean hydrocarbon formations, such as in stimulation treatments, e.g. hydraulic fracturing fluids.
摘要翻译： 用粘弹性表面活性剂（VES）凝胶化的水性粘弹性流体用有效量的添加剂抑制水合物形成，所述添加剂可以是碱金属和碱土金属，甲酸盐，醇，二醇，乙二胺的一种或多种卤化物盐 糖，糖醇，酰胺胺氧化物，聚胺如聚胺，聚乙烯吡咯烷酮及其衍生物，聚乙烯醇及其衍生物，聚己内酰胺及其衍生物，羟乙基纤维素及其混合物。 这些流体被抑制以形成水合物，并且粘度也可以增加。 这些添加剂可能会增加粘度以维持给定粘度所需的较少VES。 这些被抑制的含水粘弹性流体可以用作地下烃地层的处理流体，例如在刺激处理中。 水力压裂液。
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公开(公告)号：US06805198B2
公开(公告)日：2004-10-19
申请号：US10223118
申请日：2002-08-19
IPC分类号： G21B4327
CPC分类号： C09K8/72
摘要： Dicarboxylic acids are useful in acidizing subterranean formations to improve their permeability, particularly at elevated temperature, e.g. between about 200° F. (92° C.) and about 400° F. (204° C.). Particularly suitable dicarboxylic acids include, but are not necessarily limited to, succinic acid, glutaric acid, adipic acid, and mixtures thereof.
摘要翻译： 二羧酸可用于酸化地下地层以改善其渗透性，特别是在升高的温度下，例如， 在约200°F（92℃）和约400°F（204℃）之间。 特别合适的二羧酸包括但不一定限于琥珀酸，戊二酸，己二酸及其混合物。
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公开(公告)号：US4602685A
公开(公告)日：1986-07-29
申请号：US683787
申请日：1984-12-19
IPC分类号： C04B24/26 , C04B28/02 , C09K8/46 , C09K8/487 , E21B33/138
CPC分类号： C09K8/487 , C04B24/2641 , C04B28/02 , C09K8/46 , C04B2103/46
摘要： A well bore cementing composition and method are shown in which a hydraulic cement, water and a non-retarding fluid loss additive are combined to form a cementing slurry. The non-retarding fluid loss additive is a copolymer of a first non-ionic water soluble monomer which resists hydrolyzing in a cement slurry and a second anionic monomer. The monomer ratio of the non-ionic, water soluble monomer to the anionic monomer is in the range from about 85:15 to 95:5, and the copolymer has a molecular weight in the range from about 200,000 to 400,000.
摘要翻译： 示出了井眼固井组合物和方法，其中组合水硬性水泥，水和非阻滞性流体损失添加剂以形成固井浆料。 非阻滞性流体损失添加剂是第一非离子水溶性单体的共聚物，其抵抗水泥浆中的水解和第二阴离子单体。 非离子水溶性单体与阴离子单体的单体比在约85:15至95:5的范围内，共聚物的分子量范围为约20万至40万。
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公开(公告)号：US08342240B2
公开(公告)日：2013-01-01
申请号：US12490148
申请日：2009-06-23
IPC分类号： E21B43/00
CPC分类号： E21B37/06 , E21B43/02 , E21B43/086
摘要： A flow conduit may have at least one orifice, which conduit is in the vicinity of a flow source. The source is at least partially covered (and flow blocked by) an optional temporary coating or barrier (e.g. filter cake). The flow pathway between the orifice and the source is temporarily blocked with a degradable material. A delayed degradation material layer is present over or covering the degradable material. The delayed degradation material layer degrades at a rate slower than the degradable barrier. The degradable material and delayed degradation material layer disintegrate (e.g. via time, temperature, a solvent). The degradable material optionally produces a product that removes the temporary coating. The method is useful in one context of recovering hydrocarbons where the flow conduit is the casing or liner of the well and the flow source is a subterranean reservoir where the coating is filter cake.
摘要翻译： 流动管道可以具有至少一个孔口，该管道在流动源附近。 源至少部分地被覆盖（并被流动阻塞）可选的临时涂层或屏障（例如滤饼）。 孔和源之间的流动路径暂时用可降解的材料阻挡。 延迟降解材料层存在于或覆盖可降解材料。 延迟降解材料层以比可降解屏障慢的速率降解。 可降解材料和延迟降解材料层崩解（例如通过时间，温度，溶剂）。 可降解材料任选地产生消除临时涂层的产品。 该方法在回收烃的一个上下文中是有用的，其中流动管道是井的壳体或衬管，并且流动源是涂层是滤饼的地下储层。
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10.发明申请Downhole sealing devices having a shape-memory material and methods of manufacturing and using same 审中-公开具有形状记忆材料的井下密封装置及其制造和使用方法公开(公告)号：US20100236794A1
公开(公告)日：2010-09-23
申请号：US12802223
申请日：2010-06-02
申请人： Ping Duan , Paul M. McElfresh
发明人： Ping Duan , Paul M. McElfresh
IPC分类号： E21B33/12
CPC分类号： E21B33/127 , C08G18/44 , C08G2101/0033
摘要： Sealing devices such as packers comprise a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may comprise a polyurethane foam material held in the compressed run-in position by an adhesion material that is dissolvable by a fluid. The fluid may be a wellbore fluid already present in the wellbore or a fluid pumped down the wellbore after the sealing device is disposed within the wellbore. The fluid may also be a production fluid from the well. Upon being contacted by the fluid, the adhesion material dissolves and the shape-memory material expands to its original expanded position or shape, thereby sealing and dividing the annulus of the wellbore.
摘要翻译： 诸如封隔器的密封装置包括具有压缩的入口位置或形状和原始扩展位置或形状的形状记忆材料。 形状记忆材料可以包括通过可被流体溶解的粘合材料保持在压缩的输入位置的聚氨酯泡沫材料。 在密封装置设置在井眼内之前，流体可以是已经存在于井眼中的井眼流体或者在井眼下方泵送的流体。 流体也可以是来自井的生产流体。 当被流体接触时，粘合材料溶解并且形状记忆材料膨胀到其原始的扩张位置或形状，从而密封和分割井眼的环。
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