TRIGGERING POLYMERIZATION ON-DEMAND FOR WATER CONTROL DOWNHOLE
    61.
    发明申请
    TRIGGERING POLYMERIZATION ON-DEMAND FOR WATER CONTROL DOWNHOLE 审中-公开
    触发聚合对水控制的需求

    公开(公告)号:US20120298354A1

    公开(公告)日:2012-11-29

    申请号:US13465436

    申请日:2012-05-07

    IPC分类号: E21B43/00

    CPC分类号: C08F226/04 C08F222/385

    摘要: Methods of sealing a subterranean formation including introducing a trigger-able fluid, the trigger-able fluid containing an ethylenically unsaturated monomer, into a subterranean formation, and using an electromagnetic trigger unit having a electromagnetic source to initiate polymerization of the ethylenically unsaturated monomer after at least a portion of the trigger-able fluid has permeated into the subterranean formation.

    摘要翻译: 密封地下地层的方法,包括将含有烯键式不饱和单体的可触发流体引入到地下地层中,以及使用具有电磁源的电磁触发单元引发烯属不饱和单体聚合后在 可触发流体的至少一部分渗透到地层中。

    Shear-activated viscoelastic surfactant fluid and method
    62.
    发明授权
    Shear-activated viscoelastic surfactant fluid and method 有权
    剪切活化粘弹性表面活性剂流体和方法

    公开(公告)号:US08240379B2

    公开(公告)日:2012-08-14

    申请号:US12607750

    申请日:2009-10-28

    摘要: A well treatment composition is formed from a fluid mixture of a viscoelastic surfactant and a liquid carrier fluid. The fluid mixture has rheological properties wherein the mixture exhibits shear-thickening behavior when the shear rate is increased from a first shear rate to a second higher shear rate. The fluid mixture may further include a shear activation additive that interacts with the viscoelastic surfactant to facilitate the shear-thickening behavior. The method is accomplished by introducing the fluid mixture into a wellbore formed in a subterranean formation. In certain applications, the fluid mixture may be recycled by bringing the fluid mixture to the surface and reintroducing the fluid into the same or a different wellbore.

    摘要翻译: 良好的处理组合物由粘弹性表面活性剂和液体载体流体的流体混合物形成。 流体混合物具有流变性质,其中当剪切速率从第一剪切速率增加到第二较高剪切速率时,混合物表现出剪切增稠行为。 流体混合物还可以包括与粘弹性表面活性剂相互作用以促进剪切增稠行为的剪切活化添加剂。 该方法通过将流体混合物引入到形成在地层中的井眼中来实现。 在某些应用中,流体混合物可以通过将流体混合物引入表面并将流体重新引入到相同或不同的井眼中来再循环。

    Using a biphasic solution as a recyclable coiled tubing cleanout fluid
    64.
    发明授权
    Using a biphasic solution as a recyclable coiled tubing cleanout fluid 有权
    使用双相溶液作为可循环连续油管清洗液

    公开(公告)号:US07950459B2

    公开(公告)日:2011-05-31

    申请号:US12354500

    申请日:2009-01-15

    IPC分类号: E21B36/00 E21B37/00

    摘要: Methods and apparatus for forming a fluid for use within in a subterranean formation including combining a partitioning agent and viscosifying polymer into a fluid, introducing the fluid into the subterranean formation, and recovering at least a portion of the fluid at a uppermost surface of the subterranean formation. Methods and apparatus of forming a fluid for use within in a subterranean formation including combining a partitioning agent and viscosifying polymer into a fluid, introducing the fluid into the subterranean formation at a temperature of about 45° C. or higher, and recovering at least a portion of the fluid at a uppermost surface of the subterranean formation at a temperature of about 45° C. or lower.

    摘要翻译: 用于形成在地层内使用的流体的方法和装置,包括将分配剂和增粘聚合物组合成流体,将流体引入地下地层,以及在地下最上表面处回收至少一部分流体 形成。 形成在地层内使用的流体的方法和装置,包括将分配剂和增粘聚合物混合到流体中,在大约45℃或更高的温度下将流体引入地层,并回收至少一种 部分流体在地下层的最上表面处于约45℃或更低的温度。

    Oxidative internal breaker for viscoelastic surfactant fluids
    65.
    发明授权
    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破碎机

    公开(公告)号:US07879770B2

    公开(公告)日:2011-02-01

    申请号:US11532565

    申请日:2006-09-18

    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。

    Control of fines migration in well treatments
    66.
    发明授权
    Control of fines migration in well treatments 有权
    控制井处理中的罚款迁移

    公开(公告)号:US07823642B2

    公开(公告)日:2010-11-02

    申请号:US12212509

    申请日:2008-09-17

    IPC分类号: E21B33/138 E21B43/22

    CPC分类号: E21B43/025 C09K8/56 C09K8/68

    摘要: A treatment fluid that can be used for treating a subterranean formation penetrated by a wellbore is prepared from a primary treatment fluid component and an emulsion component mixed with the primary treatment fluid component. The emulsion component has an oil phase and an aqueous phase. The emulsion component comprising a source of insoluble silica particles and a source of calcium hydroxide, wherein the source of calcium hydroxide is present in the oil phase, and the source of insoluble silica particles are contained in the aqueous phase. The method is carried out by contacting at least a portion of the formation with the treatment fluid.

    摘要翻译: 可用于处理由井筒渗透的地下地层的处理流体由主要处理流体组分和与初级处理流体组分混合的乳液组分制备。 乳液组分具有油相和水相。 乳液组分包含不溶性二氧化硅颗粒源和氢氧化钙源,其中氢氧化钙源存在于油相中,不溶性二氧化硅颗粒源包含在水相中。 该方法通过使地层的至少一部分与处理流体接触来进行。

    Aqueous two-phase emulsion gel systems for zone isolation
    68.
    发明授权
    Aqueous two-phase emulsion gel systems for zone isolation 有权
    用于区域隔离的水性两相乳液凝胶体系

    公开(公告)号:US07703527B2

    公开(公告)日:2010-04-27

    申请号:US11944681

    申请日:2007-11-26

    IPC分类号: E21B33/13 C09K8/42

    摘要: A low viscosity wellbore polymer fluid gelling system comprising an aqueous medium and a water-in-water emulsion comprising a plurality of polymers or oligomers, including at least one removable polymer or oligomer, and at least one gelling polymer or oligomer, wherein said fluid has a low viscosity when injected, and the gelling polymer forms a gel downhole which has a storage modulus of at least about 60 Pa after the removable polymer is removed from the fluid. A method of isolating at least one zone of a subterranean formation penetrated by a wellbore includes the steps of preparing a water-in-water emulsion comprising a plurality of polymers or oligomers including at least one removable polymer or oligomer, and at least one gellable polymer or oligomer; and combining the water-in-water emulsion with an aqueous medium to prepare a low viscosity polymer fluid.

    摘要翻译: 一种低粘度井筒聚合物流体胶凝体系,其包含含水介质和包含多个聚合物或低聚物(包括至少一种可除去的聚合物或低聚物)和至少一种胶凝聚合物或低聚物的水包油乳液,其中所述流体具有 注射时具有低粘度,并且胶凝聚合物形成凝胶井下,其中可除去的聚合物从流体中除去后具有至少约60Pa的储能模量。 分离由井眼穿透的地层的至少一个区域的方法包括以下步骤:制备包含多个聚合物或低聚物的水包油乳液,所述聚合物或低聚物包括至少一种可除去的聚合物或低聚物,以及至少一种可凝胶聚合物 或低聚物; 并将水包油乳液与水性介质混合以制备低粘度聚合物流体。

    Differential filters for stopping water during oil production
    69.
    发明授权
    Differential filters for stopping water during oil production 失效
    用于在石油生产过程中停止水的差分过滤器

    公开(公告)号:US07637320B2

    公开(公告)日:2009-12-29

    申请号:US11612007

    申请日:2006-12-18

    IPC分类号: E21B43/12

    摘要: A differential filter includes a swellable polymer that swells after contacting water such that permeability of the differential filter is reduced. A method of controlling water production in a well includes deploying a differential filter downhole; and performing a downhole operation, wherein the differential filter comprises a swellable polymer that swells after contacting water such that permeability of the differential filter is reduced.

    摘要翻译: 微分过滤器包括在与水接触之后溶胀的可溶胀聚合物,使得差速过滤器的渗透性降低。 一种控制井内产水的方法包括在井下部署差动过滤器; 以及执行井下操作,其中所述差动过滤器包括在与水接触之后溶胀的可溶胀聚合物,使得差速过滤器的渗透性降低。

    System and method for perforated well sand control
    70.
    发明授权
    System and method for perforated well sand control 失效
    穿孔井砂控制系统和方法

    公开(公告)号:US07617872B1

    公开(公告)日:2009-11-17

    申请号:US12117915

    申请日:2008-05-09

    IPC分类号: E21B43/114 E21B43/26

    摘要: In one embodiment, a system includes a cased wellbore disposed in a formation of interest. The system includes an emulsion positioned in the wellbore at a depth of the formation of interest. The emulsion includes an oil external phase and an aqueous internal phase. The oil external phase includes particles having calcium hydroxide. The aqueous internal phase includes insoluble silica particles. The system further includes a perforating tool that generates perforation tunnels through the cased wellbore into the formation of interest. The system further includes a well flow control device that shuts in the wellbore for a specified period of time. The emulsion breaks during contact with the formation in the perforation tunnels, and the calcium hydroxide and silica particles form a cementitious material that consolidates the perforation tunnels.

    摘要翻译: 在一个实施例中,系统包括设置在感兴趣的形成中的套管井筒。 该系统包括在感兴趣的形成深度处定位在井眼中的乳液。 乳液包括油外相和水相内相。 油外相包括具有氢氧化钙的颗粒。 水相内相包括不溶性二氧化硅颗粒。 该系统还包括穿孔工具,该穿孔工具通过套管井眼产生穿孔,进入感兴趣的形成。 该系统还包括在井眼中关闭指定时间段的井流控制装置。 在与穿孔隧道中的地层接触期间,乳液破裂,氢氧化钙和二氧化硅颗粒形成固结穿孔隧道的水泥质材料。