Emulsion system for sand consolidation
    51.
    发明授权
    Emulsion system for sand consolidation 失效
    砂浆整理乳化体系

    公开(公告)号:US07975764B2

    公开(公告)日:2011-07-12

    申请号:US11861894

    申请日:2007-09-26

    IPC分类号: E21B33/138 E21B43/22

    CPC分类号: E21B43/025 C09K8/56

    摘要: A sand consolidation system and a method for use of the system is provided. The consolidation system includes an emulsion having an oil phase and an aqueous phase, wherein the emulsion contains a source of insoluble silica particles and a source of calcium hydroxide, wherein the calcium hydroxide particles are present in the oil phase, and the insoluble silica particles are contained in the aqueous phase. Both types of particles must have average particle sizes which will fit into the pores of the formations.

    摘要翻译: 提供了一种沙整体系统和该系统的使用方法。 固结系统包括具有油相和水相的乳液,其中乳液含有不溶性二氧化硅颗粒源和氢氧化钙源,其中氢氧化钙颗粒存在于油相中,不溶性二氧化硅颗粒为 包含在水相中。 两种类型的颗粒必须具有适合于地层孔隙的平均粒度。

    Gel capsules for solids entrainment
    52.
    发明授权
    Gel capsules for solids entrainment 失效
    用于固体夹带的凝胶胶囊

    公开(公告)号:US07886826B2

    公开(公告)日:2011-02-15

    申请号:US12765925

    申请日:2010-04-23

    CPC分类号: C09K8/52 C09K8/536

    摘要: A method for treating a subterranean wellbore. More specifically, a method for removing wellbore solids. A first, polymer containing fluid is placed in the solids bed. A second, viscosifying fluid is then placed into the solids bed thereby agitating the solids in the bed and causing the formation of a gel capsules when mixed with the biopolymer fluid. These gel capsules are capable of trapping or entraining the agitated solids. The gel capsules typically have a relatively high volume and a relatively low density, thereby making their removal from the wellbore easier.

    摘要翻译: 一种处理地下井筒的方法。 更具体地说,一种去除井筒固体的方法。 将第一种含聚合物的流体置于固体床中。 然后将第二种粘稠流体放入固体床中,从而搅拌床中的固体,并在与生物聚合物流体混合时引起凝胶胶囊的形成。 这些凝胶胶囊能够捕获或夹带搅拌的固体。 凝胶胶囊通常具有相对高的体积和相对较低的密度,从而使它们更容易从井筒移除。

    BREAKING THE RHEOLOGY OF A WELLBORE FLUID BY CREATING PHASE SEPARATION
    53.
    发明申请
    BREAKING THE RHEOLOGY OF A WELLBORE FLUID BY CREATING PHASE SEPARATION 审中-公开
    通过创建相分离破坏井筒流体的流变学

    公开(公告)号:US20100184630A1

    公开(公告)日:2010-07-22

    申请号:US12354931

    申请日:2009-01-16

    IPC分类号: C09K8/60 C09K8/588

    摘要: Embodiments of this invention relate to compositions and methods of treating a subterranean formation penetrated by a well bore including introducing a Theological polymer into a subterranean formation, introducing a partitioning agent into a subterranean formation and forming a heterogeneous mixture comprising a dispersed Theological polymer-rich phase and a partitioning agent-rich phase, wherein the viscosity of the mixture is lower than the viscosity of the mixture when no partitioning agent is present. Embodiments of this invention relate to compositions and methods of treating a surface in contact with a wellbore and/or a subterranean formation penetrated by a well bore including forming a heterogeneous mixture comprising a dispersed Theological polymer-rich phase and a partitioning agent-rich phase at the surface of the subterranean formation, and introducing the mixture into a subterranean formation, wherein the viscosity of the mixture within the subterranean formation is lower than the viscosity of the mixture when no partitioning agent is present and wherein the viscosity of the mixture within the subterranean formation is lower than the viscosity of the mixture when the mixture is formed at the surface of the subterranean formation.

    摘要翻译: 本发明的实施方案涉及处理由井眼渗透的地下地层的组合物和方法,包括将神学聚合物引入地下地层,将分配剂引入地下地层并形成包含分散的神经聚合物丰富相的不均匀混合物 和分配剂富集相,其中当不存在分配剂时,混合物的粘度低于混合物的粘度。 本发明的实施方案涉及处理与井眼和/或穿透井眼的地层接触的表面的组合物和方法,包括形成包含分散的神经聚合物丰富相和富分配剂相的不均匀混合物 地下地层的表面,并将混合物引入地下地层,其中当没有分配剂时,地层内的混合物的粘度低于混合物的粘度,并且其中地下混合物的粘度 当在地层表面形成混合物时,其形成比混合物的粘度低。

    Filled Systems From Biphasic Fluids
    54.
    发明申请
    Filled Systems From Biphasic Fluids 审中-公开
    双相流体填充系统

    公开(公告)号:US20100179076A1

    公开(公告)日:2010-07-15

    申请号:US12354370

    申请日:2009-01-15

    IPC分类号: C09K8/62

    摘要: Methods and apparatus for forming a fluid for use within in a subterranean formation comprising combining a partitioning agent, crosslinkable polymer, and crosslinker into a fluid, wherein more than 50 percent of the crosslinkable polymer crosslinks and less than 10 percent of the partitioning agent crosslinks, and introducing the fluid into the subterranean formation. Methods and apparatus of forming a fluid for use within in a subterranean formation comprising combining a partitioning agent, crosslinkable polymer, and crosslinker into a fluid, wherein a critical polymer concentration for crosslinking the crosslinkable polymer is lower than if the partitioning agent were not in the fluid, and introducing the fluid into the subterranean formation.

    摘要翻译: 用于形成在地下地层中使用的流体的方法和装置,包括将分配剂,可交联聚合物和交联剂组合成流体,其中超过50%的可交联聚合物交联并且少于10%的分配剂交联, 并将流体引入地层中。 形成在地层内使用的流体的方法和装置,包括将分配剂,可交联聚合物和交联剂组合成流体,其中用于交联可交联聚合物的临界聚合物浓度低于分配剂不在 流体,并将流体引入地层中。

    Polymeric Microspheres As Degradable Fluid Loss Additives In Oilfield Applications
    55.
    发明申请
    Polymeric Microspheres As Degradable Fluid Loss Additives In Oilfield Applications 失效
    聚合物微球作为油田应用中可降解的流体损失添加剂

    公开(公告)号:US20090205824A1

    公开(公告)日:2009-08-20

    申请号:US12353810

    申请日:2009-01-14

    摘要: Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water-in-water emulsion and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water in water emulsion, isolating the microspheres from the emulsion, and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid to treat a subterranean formation including introducing a crosslinkable polymer, partitioning agent, and crosslinker into a solvent, crosslinking the crosslinkable polymer, isolating beads of the crosslinkable polymer from the partitioning agent, introducing the beads into a fluid for treating a subterranean formation.

    摘要翻译: 用于形成在地下地层内使用的流体的方法和装置,包括在水包油乳液中沿着微球表面交联聚合物,并将微球引入地下地层。 用于形成在地层内使用的流体的方法和装置,包括在水包油乳液中沿着微球表面交联聚合物,从微乳液中分离出微球体,并将微球引入到地层中。 用于形成处理地下地层的流体的方法和装置,包括将可交联聚合物,分配剂和交联剂引入溶剂中,交联可交联聚合物,将可交联聚合物的珠子与分配剂隔离,将珠子引入流体中 处理地层。

    Viscoelastic surfactant rheology modification
    56.
    发明授权
    Viscoelastic surfactant rheology modification 有权
    粘弹性表面活性剂流变改性

    公开(公告)号:US07402549B2

    公开(公告)日:2008-07-22

    申请号:US11012446

    申请日:2004-12-15

    IPC分类号: C09K8/58 C09K8/68 E21B21/00

    摘要: A method for shortening the shear recovery time of cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a rheology enhancer selected from partially hydrolyzed polyvinyl ester and partially hydrolyzed polyacrylates. The rheology enhancer also increases fluid viscosity and very low rheology enhancer concentration is needed. Preferred surfactants are betaines and quaternary amines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.

    摘要翻译: 通过添加有效量的选自部分水解的聚乙烯酯和部分水解的聚丙烯酸酯的流变增强剂来缩短阳离子,两性离子和两性粘弹性表面活性剂流体体系的剪切恢复时间的方法。 流变增强剂还增加了流体粘度,并且需要非常低的流变学增强剂浓度。 优选的表面活性剂是甜菜碱和季胺。 这些流体可用于油田处理,例如压裂和砾石填充。

    Oxidative Internal Breaker for Viscoelastic Surfactant Fluids
    57.
    发明申请
    Oxidative Internal Breaker for Viscoelastic Surfactant Fluids 有权
    用于粘弹性表面活性剂流体的氧化内部断路器

    公开(公告)号:US20080070813A1

    公开(公告)日:2008-03-20

    申请号:US11532565

    申请日:2006-09-18

    IPC分类号: C09K8/00 E21B43/00

    摘要: Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Oxidizing agents such as air, oxygen, persulfates, bromates, peroxides, and others are used. The break may be accelerated, for example with a free radical propagating species, or retarded, for example with an oxygen scavenger. In certain brines, for example bromide brines, certain zwitterionic viscoelastic fluid systems that can decarboxylate and that require an anion-containing co-surfactant undergo delayed degradation if oxygen is present, for example from fluid preparation or in a foam.

    摘要翻译: 给出组合物和方法用于延迟破裂地层孔隙内的粘弹性表面活性剂凝胶,特别是用于水力压裂。 破碎内部形成孔隙是在没有机械干预或使用第二流体的情况下完成的。 使用氧化剂如空气,氧气,过硫酸盐,溴酸盐,过氧化物等。 可以加速断裂,例如用自由基传播物质或延迟的,例如用氧清除剂。 在某些盐水中,例如溴化物盐水,可以脱羧并且需要含阴离子的辅助表面活性剂的某些两性离子粘弹性流体体系如果存在氧,例如从流体制备或泡沫中经历延迟降解。

    Method to remove particulate matter from a wellbore using translocating fibers and/or platelets
    58.
    发明授权
    Method to remove particulate matter from a wellbore using translocating fibers and/or platelets 有权
    使用易位纤维和/或血小板从井筒中除去颗粒物的方法

    公开(公告)号:US06419019B1

    公开(公告)日:2002-07-16

    申请号:US09196277

    申请日:1998-11-19

    IPC分类号: E21B3700

    CPC分类号: E21B37/00

    摘要: An improved method for transport of particulate matter in a wellbore fluid, and particularly the transport of particulate matter in subterranean wells, such as hydrocarbon wells, is disclosed, the method being characterized by utilization of specified fibers to aid in transport of the particulate matter. Additional embodiments include the removal of particulate matter (particles) and particle deposits, such as from drill cuttings, during the drilling of wells, and the removal of particulate matter deposits in cleanout operations.

    摘要翻译: 公开了一种用于在井眼流体中运输颗粒物质的改进方法,特别是在诸如烃井的地下井中的颗粒物质的运输,该方法的特征在于利用指定的纤维来帮助颗粒物质的运输。 另外的实施例包括在钻井过程中除去颗粒物质(颗粒)和颗粒沉积物,例如来自钻屑,以及在清洁操作中去除颗粒物质沉积物。