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公开(公告)号：US20120012318A1
公开(公告)日：2012-01-19
申请号：US13169678
申请日：2011-06-27
CPC分类号： C09K8/508 , C04B26/14 , C04B40/0096 , C08K3/346 , C08K3/36 , C09K8/44 , C09K8/5045 , Y02W30/92 , Y02W30/94 , C04B14/062 , C04B14/106 , C04B18/141 , C04B18/08 , C04B18/146 , C08L63/00
摘要： Fluid compositions comprising an aqueous epoxy resin, a hardener and particles comprising silica, aluminosilicate or both are useful for establishing hydraulic isolation in cemented subterranean wells. Upon entering voids and cracks in or adjacent to the cement sheath, and contacting the set-cement surfaces, the composition reacts and forms a seal that prevents further leakage.
摘要翻译： 包含水性环氧树脂，硬化剂和包含二氧化硅，硅铝酸盐或二者的颗粒的流体组合物可用于在胶结地下井中建立液压隔离。 当在水泥护套中或其附近进入空隙和裂缝并且接触凝固水泥表面时，组合物反应并形成防止进一步泄漏的密封件。
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公开(公告)号：US08936081B2
公开(公告)日：2015-01-20
申请号：US12420860
申请日：2009-04-09
IPC分类号： E21B29/00 , E21B33/13 , C09K8/42 , E21B33/138 , C04B28/18
CPC分类号： C09K8/50 , C04B28/18 , C09K8/428 , E21B33/138 , Y02W30/94 , C04B14/062 , C04B14/305 , C04B18/146 , C04B20/008 , C04B22/06 , C04B22/124 , C04B24/26 , C04B2103/0086 , C04B2103/0094 , C04B24/12
摘要： Fluid compositions containing a silica-particle suspension with no intrinsic cementitious properties may be pumped into a wellbore. Upon making downhole contact with previously placed well cements from primary-cementing or previous remedial-cementing operations, the silica suspension reacts to form a gel that seals voids, cracks or fissures in the cement sheath. Portland cement is the preferred cement with which the silica-particle suspensions interact downhole.
摘要翻译： 含有不具有固有水泥性质的二氧化硅 - 颗粒悬浮液的流体组合物可以泵送到井筒中。 在与先前安置好的水泥进行井下接触以进行初次固井或先前的补水固井操作之后，二氧化硅悬浮液反应形成密封水泥鞘中的空隙，裂缝或裂缝的凝胶。 波特兰水泥是二氧化硅 - 颗粒悬浮液与井下相互作用的首选水泥。
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公开(公告)号：US20100307750A1
公开(公告)日：2010-12-09
申请号：US12747554
申请日：2008-12-11
CPC分类号： C09K8/428
摘要： The invention discloses a method of treating a wellbore, comprising the step mixing an alkali swellable polymer and a first material, wherein said first material does not cause said alkali swellable polymer to swell significantly; and placing said alkali swellable polymer and said first material in the wellbore.
摘要翻译： 本发明公开了一种处理井孔的方法，包括将碱溶胀性聚合物和第一材料混合的步骤，其中所述第一种材料不会使所述碱溶胀性聚合物显着膨胀; 并将所述碱溶胀性聚合物和所述第一材料置于井眼中。
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公开(公告)号：US20100137473A1
公开(公告)日：2010-06-03
申请号：US12622023
申请日：2009-11-19
IPC分类号： C09K8/42
CPC分类号： C09K8/5086 , C04B26/14 , C04B2111/00663 , C09D5/34 , C09D163/00 , C09K8/428 , C09K8/44 , C09K8/5083 , E21B33/13 , C04B2103/0049 , C04B2103/0094 , C04B20/0024 , C04B24/06
摘要： A composition for repairing voids or cracks in a cement sheath or plug comprises an aqueous epoxy resin, a hardener, an alkali-swellable material and an aqueous carrier fluid. The particle size of the alkali-swellable material is preferably smaller than 200 nanometers, thereby allowing the composition to penetrate cracks as small as 60 micrometers. A method for repairing voids or cracks in a cement sheath, thereby restoring zonal isolation, comprises preparing the composition, injecting the composition into voids or cracks in a cement sheath or plug and allowing the composition to viscosify and harden.
摘要翻译： 用于修复水泥护套或塞子中的空隙或裂纹的组合物包括水性环氧树脂，硬化剂，碱溶胀性材料和水性载体流体。 碱溶胀性材料的粒径优选小于200纳米，从而允许组合物穿透小至60微米的裂纹。 一种用于修复水泥护套中的空隙或裂缝的方法，从而恢复区域分离，包括制备组合物，将组合物注入水泥护套或塞子中的空隙或裂缝中，并使组合物变粘和硬化。
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公开(公告)号：US08967254B2
公开(公告)日：2015-03-03
申请号：US12622023
申请日：2009-11-19
IPC分类号： C09K8/00 , C09K8/42 , C09K8/44 , C04B26/14 , C09D5/34 , C09D163/00 , C04B111/00
CPC分类号： C09K8/5086 , C04B26/14 , C04B2111/00663 , C09D5/34 , C09D163/00 , C09K8/428 , C09K8/44 , C09K8/5083 , E21B33/13 , C04B2103/0049 , C04B2103/0094 , C04B20/0024 , C04B24/06
摘要： A composition for repairing voids or cracks in a cement sheath or plug comprises an aqueous epoxy resin, a hardener, an alkali-swellable material and an aqueous carrier fluid. The particle size of the alkali-swellable material is preferably smaller than 200 nanometers, thereby allowing the composition to penetrate cracks as small as 60 micrometers. A method for repairing voids or cracks in a cement sheath, thereby restoring zonal isolation, comprises preparing the composition, injecting the composition into voids or cracks in a cement sheath or plug and allowing the composition to viscosify and harden.
摘要翻译： 用于修复水泥护套或塞子中的空隙或裂纹的组合物包括水性环氧树脂，硬化剂，碱溶胀性材料和水性载体流体。 碱溶胀性材料的粒径优选小于200纳米，从而允许组合物穿透小至60微米的裂纹。 一种用于修复水泥护套中的空隙或裂缝的方法，从而恢复区域分离，包括制备组合物，将组合物注入水泥护套或塞子中的空隙或裂缝中，并使组合物变粘和硬化。
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公开(公告)号：US08434552B2
公开(公告)日：2013-05-07
申请号：US12747554
申请日：2008-12-11
CPC分类号： C09K8/428
摘要： Compositions containing an alkali swelling polymer and a pH buffer with a pH between 3 and 7 may be used to treat a wellbore. The pH buffer prevents the swelling of the alkali swellable polymer. The compositions may be placed in the wellbore, whereupon they contact another material with pH increasing properties. The pH of the compositions increases, causing the compositions to swell and form a seal. The alkali swelling polymer may be an alkali swelling latex.
摘要翻译： 可以使用含有碱溶胀性聚合物和PH值在3和7之间的pH缓冲液的组合物来处理井眼。 pH缓冲液可防止碱溶胀性聚合物溶胀。 组合物可以放置在井眼中，于是它们接触具有pH增加性质的另一种材料。 组合物的pH增加，导致组合物膨胀并形成密封。 碱溶胀聚合物可以是碱溶胀胶乳。
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公开(公告)号：US20100270016A1
公开(公告)日：2010-10-28
申请号：US12430154
申请日：2009-04-27
CPC分类号： C09K8/52 , C09K8/428 , C09K8/5045 , E21B33/13
摘要： This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.
摘要翻译： 本发明涉及用于维护地下井的方法，特别是用于补救操作的流体组合物和方法，在此过程中将流体组合物泵送到井眼中并与初级固井或先前的补救固井操作中放置的井水泥接触。
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公开(公告)号：US20100258310A1
公开(公告)日：2010-10-14
申请号：US12420860
申请日：2009-04-09
CPC分类号： C09K8/50 , C04B28/18 , C09K8/428 , E21B33/138 , Y02W30/94 , C04B14/062 , C04B14/305 , C04B18/146 , C04B20/008 , C04B22/06 , C04B22/124 , C04B24/26 , C04B2103/0086 , C04B2103/0094 , C04B24/12
摘要： This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.
摘要翻译： 本发明涉及用于维护地下井的方法，特别是用于补救操作的流体组合物和方法，在此过程中将流体组合物泵送到井眼中，并与初次固井或先前的补救固井操作中放置的井水泥接触。
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公开(公告)号：US20130146286A1
公开(公告)日：2013-06-13
申请号：US13814723
申请日：2011-07-05
CPC分类号： C09K8/467 , C04B18/20 , C04B18/22 , C04B28/02 , C09K8/426 , C09K8/428 , E21B33/13 , Y02W30/96 , C04B14/08 , C04B20/008 , C04B24/2611 , C04B24/2623 , C04B24/2641 , C04B24/2652 , C04B24/2676 , C04B24/42
摘要： A self-adaptive cement formulation includes cement, water and thermoplastic block-polymer particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both.
摘要翻译： 自适应水泥配方包括水泥，水和热塑性嵌段聚合物颗粒。 固化水泥在暴露于甲烷时表现出自愈性，特别适用于固井应用。 放置和固化后，自愈性能有助于保持层状隔离，如果固定水泥与地层或套管柱之间的粘结被破坏，则应在固结水泥基体中出现裂纹或缺陷，或两者兼而有之。
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公开(公告)号：US20130037267A1
公开(公告)日：2013-02-14
申请号：US13640479
申请日：2011-04-11
CPC分类号： E21B33/10 , C08F2/32 , C08F220/38 , C08F220/56 , C08F220/60 , C09K8/422 , E21B33/1208
摘要： The disclosure relates to a system (10) for improving zonal isolation in a well in a subterranean formation, comprising: a tubular (1) having a outer surface (11); and a swellable coating (2) coating the outer surface (11) of said tubular (1), said swellable coating (2) having an external surface (21); and/or a composition (20) provided in an annular space outside said tubular (1). The swellable coating (2) is made of a first swellable material (3) able to swell in contact with a first fluid (6) on said external surface (21) and/or the composition (20) is made of a second swellable material (4) able to swell in contact with a second fluid (7), and wherein said first (3) and/or said second (4) swellable materials include an elastomer compounded with an aqueous inverse emulsion of particles of a polymer comprising a betaine group, said elastomer being able to swell in contact with hydrocarbon and saline aqueous fluids.
摘要翻译： 本公开涉及一种用于改善地层中的井中的区域隔离的系统（10），包括：具有外表面（11）的管（1）; 和涂覆所述管（1）的外表面（11）的可溶胀涂层（2），所述可溶胀涂层（2）具有外表面（21）; 和/或设置在所述管（1）外部的环形空间中的组合物（20）。 可膨胀涂层（2）由能够与所述外表面（21）上的第一流体（6）接触膨胀的第一可溶胀材料（3）和/或组合物（20）由第二可溶胀材料制成 （4）能够与第二流体（7）接触膨胀，并且其中所述第一（3）和/或所述第二（4）可溶胀材料包括与包含甜菜碱的聚合物颗粒的水性反相乳液复合的弹性体 所述弹性体能够与烃和盐水水溶液接触而溶胀。
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