Using A Biphasic Solution As A Recyclable Coiled Tubing Cleanout Fluid
    1.
    发明申请
    Using A Biphasic Solution As A Recyclable Coiled Tubing Cleanout Fluid 有权
    使用双相溶液作为可回收的卷管清洗液

    公开(公告)号:US20100175881A1

    公开(公告)日:2010-07-15

    申请号:US12354500

    申请日:2009-01-15

    IPC分类号: E21B43/00 E21B36/00

    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。

    Using a biphasic solution as a recyclable coiled tubing cleanout fluid
    7.
    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。

    Polymer delivery in well treatment applications
    8.
    发明授权
    Polymer delivery in well treatment applications 有权
    聚合物输送在井处理应用中

    公开(公告)号:US09574128B2

    公开(公告)日:2017-02-21

    申请号:US12166804

    申请日:2008-07-02

    摘要: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.

    摘要翻译: 本发明涉及用于处理地下地层的组合物和方法,特别是油田刺激组合物和使用水包水聚合物乳液在处理液中均匀溶解流变学活性聚合物如增稠剂或摩擦减小剂的方法。 乳液具有低粘度并且容易地泵入以混合到处理流体中,其中当用水性介质稀释时,聚合物容易水合而不形成鱼眼。 水包油乳液中的分配剂通常不影响处理液的流变性。 本发明还涉及通过湿法研磨,高剪切混合和/或加热进一步处理乳液,以提高在井处理流体的制备中的水化速率。

    Oxidative Internal Breaker for Viscoelastic Surfactant Fluids
    9.
    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。