Differential filters for removing water during oil production
    3.
    发明授权
    Differential filters for removing water during oil production 有权
    用于在石油生产过程中去除水的微分过滤器

    公开(公告)号:US08205673B2

    公开(公告)日:2012-06-26

    申请号:US12643591

    申请日:2009-12-21

    IPC分类号: E21B43/12

    摘要: A method of removing a partial amount of water in a well, comprises 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 by removing said partial amount of water, the swellable polymer being non-soluble in the water and/or hydrocarbon and wherein the swellable polymer comprises at least one selected from the group consisting of polyacrylic acid, polyacrylate, polymethacrylic acid, poly maleic anhydride, polyacrylamide, polyvinyl alcohol, latex, polyamide, polyester, and a co-polymer thereof.

    摘要翻译: 一种去除井中部分量的水的方法,包括在井下部署差动过滤器; 并且执行井下操作,其中所述差速过滤器包括在与水接触之后膨胀的可溶胀聚合物,使得通过除去所述部分量的水来降低差速过滤器的渗透性,所述可溶胀聚合物不溶于水和/或烃 并且其中所述可溶胀聚合物包含选自聚丙烯酸,聚丙烯酸酯,聚甲基丙烯酸,聚马来酸酐,聚丙烯酰胺,聚乙烯醇,胶乳,聚酰胺,聚酯及其共聚物中的至少一种。

    Slickwater Treatment Fluid and Method
    4.
    发明申请
    Slickwater Treatment Fluid and Method 有权
    浮渣处理液和方法

    公开(公告)号:US20090318313A1

    公开(公告)日:2009-12-24

    申请号:US12143105

    申请日:2008-06-20

    IPC分类号: C09K8/62

    摘要: A treatment fluid for treating a subterranean formation penetrated by a wellbore is formed from water, a polyacrylamide in an amount of less than about 0.5% by weight of the fluid for reducing friction of the fluid and a stabilized peroxide breaker. A method of treating a subterranean formation penetrated by a wellbore is carried out by forming treatment fluid comprising water, a polyacrylamide in an amount of less than about 0.5% by weight of the fluid for reducing friction of the fluid and a stabilized peroxide breaker. The treatment fluid is introduced into the formation through the wellbore at a pressure above the fracture pressure of the formation.

    摘要翻译: 用于处理由井筒渗透的地层的处理流体由水,聚丙烯酰胺形成,所述聚丙烯酰胺的量小于流体的约0.5重量%,用于减少流体和稳定的过氧化物破坏剂的摩擦。 通过形成包含水,聚丙烯酰胺的处理流体,其量小于流体的约0.5重量%,以减少流体和稳定的过氧化物破坏剂的摩擦,来处理由井眼渗透的地层的方法。 处理流体在高于地层断裂压力的压力下通过井筒被引入地层。

    AQUEOUS SOLUTION FOR CONTROLLING BACTERIA IN THE WATER USED FOR FRACTURING

    公开(公告)号:US20100307757A1

    公开(公告)日:2010-12-09

    申请号:US12793479

    申请日:2010-06-03

    IPC分类号: E21B43/267 E21B43/00

    摘要: Methods and apparatus of embodiments of the invention relate to a system for treating a subterranean formation including mixing equipment to form a fluid comprising sodium hypochlorite and sodium diacetate; and pumps and a tubular to introduce the fluid into the subterranean formation, wherein a surface of the subterranean formation contains at least 15 percent less microorganisms than if no sodium hypochlorite were in the fluid. Methods and apparatus of embodiments of the invention relate to a method of producing a petroleum product from a wellbore including using a well treatment system comprising mixing equipment, pumps, and a tubular, forming a fluid comprising sodium hypochlorite and sodium diacetate; and introducing the fluid to the well treatment system to achieve a reduced population of microorganisms in the system. Methods and apparatus of embodiments of the invention relate to a system, comprising: a subterranean formation, a well treatment apparatus comprising mixing equipment, pumps, and a tubular, and a fluid comprising sodium hypochlorite and sodium diacetate to achieve a reduced population of microorganisms in the system. Methods and apparatus of embodiments of the invention relate to a method for treating a subterranean formation, comprising forming a fluid comprising sodium hypochlorite, a buffer, and a polymer; introducing the fluid to a surface of a subterranean formation; and decreasing a population of microorganisms, wherein the surface of the subterranean formation contains at least 15 percent less microorganisms than if no sodium hypochlorite were in the fluid, and wherein the fluid exhibits a pH of about 4.0 to about 7.5. Methods and apparatus of embodiments of the invention relate to a method for treating a subterranean formation, comprising forming a fluid comprising sodium hypochlorite and sodium diacetate; and introducing the fluid to a subterranean formation, wherein forming the fluid does not include introducing an acid, and wherein forming the fluid does not include forming a precipitate.

    Slickwater treatment fluid and method
    8.
    发明授权
    Slickwater treatment fluid and method 有权
    滑水处理液和方法

    公开(公告)号:US08575073B2

    公开(公告)日:2013-11-05

    申请号:US12143105

    申请日:2008-06-20

    IPC分类号: C09K8/62

    摘要: A treatment fluid for treating a subterranean formation penetrated by a wellbore is formed from water, a polyacrylamide in an amount of less than about 0.5% by weight of the fluid for reducing friction of the fluid and a stabilized peroxide breaker. A method of treating a subterranean formation penetrated by a wellbore is carried out by forming treatment fluid comprising water, a polyacrylamide in an amount of less than about 0.5% by weight of the fluid for reducing friction of the fluid and a stabilized peroxide breaker. The treatment fluid is introduced into the formation through the wellbore at a pressure above the fracture pressure of the formation.

    摘要翻译: 用于处理由井筒渗透的地层的处理流体由水,聚丙烯酰胺形成,所述聚丙烯酰胺的量小于流体的约0.5重量%,用于减少流体和稳定的过氧化物破坏剂的摩擦。 通过形成包含水,聚丙烯酰胺的处理流体,其量小于流体的约0.5重量%,以减少流体和稳定的过氧化物破坏剂的摩擦,来处理由井眼渗透的地层的方法。 处理流体在高于地层断裂压力的压力下通过井筒被引入地层。

    Self-Viscosifying and Self-Breaking Gels
    9.
    发明申请
    Self-Viscosifying and Self-Breaking Gels 审中-公开
    自我敏感和自我破裂的凝胶

    公开(公告)号:US20100093891A1

    公开(公告)日:2010-04-15

    申请号:US12578209

    申请日:2009-10-13

    IPC分类号: C09K8/44 C08F20/00

    摘要: The invention provides a method. The method injects into a wellbore, a fluid comprising at least one of an acrylamide polymer and an acrylamide copolymer, and at least one of an oxidizing agent and a radical initiator; and allows viscosity of the fluid to increase for a first period of time; and subsequently, allows viscosity of the fluid to decrease for a second period of time. In a further aspect the invention provides a fluid for use in a well within a subterranean formation penetrated by a wellbore. The fluid is in a first embodiment, made of an acrylamide polymer and/or copolymer and an oxidizing agent or radical initiator, wherein concentration of the oxidizing agent or radical initiator is such that the fluid increases its viscosity for a period of time and after said period of time decreases its viscosity. The fluid is in a second embodiment, made of an acrylamide polymer and/or copolymer and an oxidizing agent or radical initiator, wherein the oxidizing agent or radical initiator is such that the fluid increases its viscosity for a period of time and after said period of time decreases its viscosity.

    摘要翻译: 本发明提供了一种方法。 该方法注入井眼,包含丙烯酰胺聚合物和丙烯酰胺共聚物中的至少一种以及氧化剂和自由基引发剂中的至少一种的流体; 并且允许流体的粘度在第一时间段内增加; 并且随后允许流体的粘度在第二时间段内降低。 在另一方面,本发明提供一种用于井眼穿透的地层内的井中的流体。 在第一实施方案中,流体由丙烯酰胺聚合物和/或共聚物和氧化剂或自由基引发剂制成,其中氧化剂或自由基引发剂的浓度使得流体在一段时间内增加其粘度,并且在所述 一段时间降低其粘度。 在第二实施方案中,流体由丙烯酰胺聚合物和/或共聚物和氧化剂或自由基引发剂制成,其中氧化剂或自由基引发剂使得流体在其一段时间内增加其粘度,并且在所述时间段 时间降低其粘度。