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    Internal breakers for viscoelastic surfactant fluids
    52.
    发明授权
    Internal breakers for viscoelastic surfactant fluids 失效
    用于粘弹性表面活性剂流体的内部破碎机

    公开(公告)号：US08067342B2

    公开(公告)日：2011-11-29

    申请号：US12122121

    申请日：2008-05-16

    申请人： Lijun Lin ,  Leiming Li ,  Carlos Abad

    发明人： Lijun Lin ,  Leiming Li ,  Carlos Abad

    IPC分类号： C09K8/68

    CPC分类号： C09K8/602 ,  C09K8/68 ,  C09K8/72 ,  C09K2208/26 ,  C09K2208/30

    摘要： Internal breakers are given that break fluids viscosified with non-polymeric viscosifiers such as viscoelastic surfactants, inside formation pores. The breakers are polyols, for example natural and synthetic sugars, monoalcohols, and mixtures of the two. The sugars may be ketones and aldehydes. The sugars are also breaker aides for oxidizing agents used as breakers. Methods of using the breakers and breaker aides in oilfield treatment fluids are given.

    摘要翻译： 给出了内部断路器，使用非聚合增粘剂（如粘弹性表面活性剂，内部形成孔隙）粘稠的流体破裂。 断路器是多元醇，例如天然和合成的糖，一元醇和两者的混合物。 糖可以是酮和醛。 这些糖也是用作破碎剂的氧化剂的破碎剂助剂。 给出了在油田处理液中使用断路器和断路器助剂的方法。

    METHOD TO DECREASE VISCOSITY OF GELLED OIL
    53.
    发明申请
    METHOD TO DECREASE VISCOSITY OF GELLED OIL 审中-公开
    降低胶体油粘度的方法

    公开(公告)号：US20110237470A1

    公开(公告)日：2011-09-29

    申请号：US12748503

    申请日：2010-03-29

    申请人： Leiming Li ,  Lijun Lin ,  Oscar Bustos ,  Randy Tercero ,  Mathew M. Samuel

    发明人： Leiming Li ,  Lijun Lin ,  Oscar Bustos ,  Randy Tercero ,  Mathew M. Samuel

    IPC分类号： C09K8/64 ,  C09K8/68 ,  C09K8/588 ,  C09K8/584

    CPC分类号： C09K8/584 ,  C09K8/64 ,  C09K8/703

    摘要： A method of decreasing the viscosity of a gelled organic-based fluid is disclosed. The method comprises combining an organic solvent, a gelling agent, and a metal crosslinker; forming the gelled organic-based fluid; and adding a chelating agent forming a complex with the metal to decrease the viscosity of the gelled organic-based fluid. The chelating agent may be chosen within nitrilotriacetic acid (NTA), citric acid; ascorbic acid, hydroxyethylethylenediaminetriacetic acid (HEDTA) or its salts, ethylenediaminetetraacetic acid (EDTA) or its salts, diethylenetriaminepentaacetic acid (DTPA) or its salts, phosphinopolyacrylate, thioglycolates, or a combination thereof.

    摘要翻译： 公开了降低凝胶状有机基流体粘度的方法。 该方法包括组合有机溶剂，胶凝剂和金属交联剂; 形成胶凝的有机基流体; 并加入与金属形成络合物的螯合剂以降低胶凝的有机基流体的粘度。 螯合剂可以选择在次氮基三乙酸（NTA），柠檬酸， 抗坏血酸，羟乙基乙二胺三乙酸（HEDTA）或其盐，乙二胺四乙酸（EDTA）或其盐，二亚乙基三胺五乙酸（DTPA）或其盐，膦酸多异丙酯，巯基乙酸酯或其组合。

    Rheology modifier comprising a tetrakis(hydroxyalkyl) phosphonium salt for polymer fluids
    54.
    发明授权
    Rheology modifier comprising a tetrakis(hydroxyalkyl) phosphonium salt for polymer fluids 有权
    包含用于聚合物流体的四（羟烷基）鏻盐的流变改性剂

    公开(公告)号：US07923414B2

    公开(公告)日：2011-04-12

    申请号：US12534901

    申请日：2009-08-04

    申请人： Lijun Lin ,  Leiming Li ,  Mathew M. Samuel ,  Syed Ali

    发明人： Lijun Lin ,  Leiming Li ,  Mathew M. Samuel ,  Syed Ali

    IPC分类号： C09K8/22 ,  E21B43/00

    CPC分类号： C09K8/035 ,  Y10S507/904

    摘要： Embodiments of this invention relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and a polymer, and exposing the fluid to a temperature of about 20° C. to about 200° C., wherein a viscosity is observed that is at least about 5 percent different than if no salt were present. Embodiments of this invention also relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and diutan and/or guar and/or guar derivatives and/or a combination thereof, and exposing the fluid to a temperature of about 20° C. to about 163° C., wherein a viscosity is observed that is at least about 5 percent lower than if no salt were present. Embodiments of this invention also relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and xanthan, and exposing the fluid to a temperature of about 20° C. to about 200° C., wherein a viscosity is observed that is at least about 5 percent higher than if no salt were present.

    摘要翻译： 本发明的实施方案涉及用于定制用于油田服务行业的流体的流变学的组合物和方法，包括形成包含四（羟烷基）鏻盐和聚合物的流体，并将流体暴露于 约20℃至约200℃，其中观察到与不存在盐相比至少约5％的粘度。 本发明的实施方案还涉及用于定制用于油田服务行业的流体的流变学的组合物和方法，包括形成包含四（羟烷基）鏻盐和二氘和/或瓜尔胶和/或瓜尔胶衍生物的流体 和/或其组合，并将流体暴露于约20℃至约163℃的温度，其中观察到比不存在盐低至少约5％的粘度。 本发明的实施方案还涉及用于定制用于油田服务行业的流体的流变学的组合物和方法，包括形成包含四（羟基烷基）鏻盐和黄原胶的流体，并将流体暴露于 约20℃至约200℃，其中观察到比不存在盐高至少约5％的粘度。

    RHEOLOGY MODIFIER FOR POLYMER FLUIDS
    55.
    发明申请
    RHEOLOGY MODIFIER FOR POLYMER FLUIDS 有权
    聚合物流体的流变学改性剂

    公开(公告)号：US20110034352A1

    公开(公告)日：2011-02-10

    申请号：US12534901

    申请日：2009-08-04

    申请人： Lijun Lin ,  Leiming Li ,  Mathew M. Samuel ,  Syed Ali

    发明人： Lijun Lin ,  Leiming Li ,  Mathew M. Samuel ,  Syed Ali

    IPC分类号： C09K8/60

    CPC分类号： C09K8/035 ,  Y10S507/904

    摘要： Embodiments of this invention relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and a polymer, and exposing the fluid to a temperature of about 20° C. to about 200° C., wherein a viscosity is observed that is at least about 5 percent different than if no salt were present. Embodiments of this invention also relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and diutan and/or guar and/or guar derivatives and/or a combination thereof, and exposing the fluid to a temperature of about 20° C. to about 163° C., wherein a viscosity is observed that is at least about 5 percent lower than if no salt were present. Embodiments of this invention also relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and xanthan, and exposing the fluid to a temperature of about 20° C. to about 200° C., wherein a viscosity is observed that is at least about 5 percent higher than if no salt were present.

    摘要翻译： 本发明的实施方案涉及用于定制用于油田服务行业的流体的流变学的组合物和方法，包括形成包含四（羟烷基）鏻盐和聚合物的流体，并将流体暴露于 约20℃至约200℃，其中观察到与不存在盐相比至少约5％的粘度。 本发明的实施方案还涉及用于定制用于油田服务行业的流体的流变学的组合物和方法，包括形成包含四（羟烷基）鏻盐和二氘和/或瓜尔胶和/或瓜尔胶衍生物的流体 和/或其组合，并将流体暴露于约20℃至约163℃的温度，其中观察到比不存在盐低至少约5％的粘度。 本发明的实施方案还涉及用于定制用于油田服务行业的流体的流变学的组合物和方法，包括形成包含四（羟基烷基）鏻盐和黄原胶的流体，并将流体暴露于 约20℃至约200℃，其中观察到比不存在盐高至少约5％的粘度。

    Acidic internal breaker for viscoelastic surfactant fluids in brine
    57.
    发明授权
    Acidic internal breaker for viscoelastic surfactant fluids in brine 失效
    用于盐水中粘弹性表面活性剂流体的酸性内部破碎剂

    公开(公告)号：US07635028B2

    公开(公告)日：2009-12-22

    申请号：US11770442

    申请日：2007-06-28

    申请人： Leiming Li ,  Lijun Lin ,  Carlos Abad ,  Toan Bui

    发明人： Leiming Li ,  Lijun Lin ,  Carlos Abad ,  Toan Bui

    IPC分类号： E21B43/25 ,  E21B43/26 ,  C09K8/60 ,  C09K8/70

    CPC分类号： C09K8/602 ,  C09K8/68 ,  Y10S507/921

    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. Acidic internal breakers such as sulfuric acid and nitric acid are used. The break may be accelerated, for example with a free radical propagating species, or retarded, for example with an oxygen scavenger.

    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。 使用酸性内部破碎剂如硫酸和硝酸。 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。

    High Temperature Fracturing Fluids and Method of Use
    58.
    发明申请
    High Temperature Fracturing Fluids and Method of Use 有权
    高温压裂液及其使用方法

    公开(公告)号：US20090145607A1

    公开(公告)日：2009-06-11

    申请号：US12256602

    申请日：2008-10-23

    申请人： Leiming Li

    发明人： Leiming Li

    IPC分类号： E21B43/26 ,  C09K8/68 ,  C09K8/90

    CPC分类号： C09K8/685 ,  Y10S507/903

    摘要： A treatment fluid for treating a subterranean formation is formed from an aqueous solution of a polysaccharide, a polyacrylamide, a crosslinking agent, which may be a Group 4 transition metal crosslinking agent, and less than 0.1% by weight of any clay component. In certain embodiments, the polyacrylamide may have an average molecular weight of from greater than 0.5 million to about 20 million and may be present in the fluid in an amount of from about 0.01% to 1% by weight of the fluid. A method of treating a subterranean formation penetrated by a wellbore may be carried out by introducing the treatment fluid into the formation through the wellbore. In certain embodiments, the treatment fluid may be introduced into a portion of the formation having a temperature of 120° C. or higher.

    摘要翻译： 用于处理地层的处理流体由多糖，聚丙烯酰胺，交联剂（可以是第4族过渡金属交联剂）和小于0.1重量％的任何粘土组分的水溶液形成。 在某些实施方案中，聚丙烯酰胺的平均分子量可以大于50万至约2000万，并且可以以流体的约0.01重量％至1重量％的量存在于流体中。 可以通过将井眼中的处理流体引入到地层中来进行井眼渗透的地层的处理方法。 在某些实施方案中，可将处理流体引入具有120℃或更高温度的部分地层中。