Surfactants for hydrocarbon recovery
    1.
    发明申请
    Surfactants for hydrocarbon recovery 审中-公开
    用于烃回收的表面活性剂

    公开(公告)号:US20090253595A1

    公开(公告)日:2009-10-08

    申请号:US12062278

    申请日:2008-04-03

    IPC分类号: C09K8/86

    摘要: This invention provides compositions comprising an aqueous well fluid and at least one nonionic acetylenic alcoholic surfactant. The compositions may further comprise at least one fluoroaliphatic surfactant. Methods for recovery of aqueous well fluids involving the use of at least one nonionic acetylenic alcoholic surfactant are also provided, and these methods may further comprise the use of at least one fluoroaliphatic surfactant.

    摘要翻译: 本发明提供了包含水性井液和至少一种非离子炔属醇表面活性剂的组合物。 组合物还可以包含至少一种氟代脂族表面活性剂。 还提供了涉及使用至少一种非离子炔属醇类表面活性剂的含水井液的回收方法,并且这些方法还可以包括使用至少一种氟代脂族表面活性剂。

    Method of Treating Subterranean Formations with Carboxylated Guar Derivatives
    2.
    发明申请
    Method of Treating Subterranean Formations with Carboxylated Guar Derivatives 有权
    用羧基瓜尔胶衍生物处理地下地层的方法

    公开(公告)号:US20110015100A1

    公开(公告)日:2011-01-20

    申请号:US12505272

    申请日:2009-07-17

    IPC分类号: C09K8/62

    摘要: The production of hydrocarbons from a subterranean formation is enhanced by use of a well treatment fluid which contains a carboxylated guar which may be prepared by reacting a guar source and a derivatizing agent of the formula X(CH2)nCOOH or alkali salts thereof, wherein X is selected from the group consisting of —OSO2CH3; —OSO2C2H5; —OTs, —Br, and —I and n is between from 1 to 4. The intrinsic viscosity of the carboxylated guar in 2% KCl at 27° C. is at least 750 mL/g and the degree of substitution (DS) of the carboxylated guar is typically between from about 0.02 to about 0.15.

    摘要翻译: 通过使用含有羧基瓜耳胶的良好处理流体来提高来自地下层的烃的生产,所述羧酸化瓜尔胶可以通过使瓜尔胶源和式X(CH 2)n COOH的衍生化剂或其碱金属盐反应而制备,其中X 选自-OSO 2 CH 3; -OSO2C2H5; -OTs,-Br和-I,n在1至4之间。在27℃下2%KCl中羧化瓜尔酮的特性粘度至少为750mL / g,取代度(DS)为 羧化瓜尔胶通常在约0.02至约0.15之间。

    Method of treating subterranean formations with carboxylated guar derivatives
    5.
    发明授权
    Method of treating subterranean formations with carboxylated guar derivatives 有权
    用羧化瓜尔胶衍生物处理地下地层的方法

    公开(公告)号:US08030250B2

    公开(公告)日:2011-10-04

    申请号:US12505272

    申请日:2009-07-17

    IPC分类号: C09K8/68 E21B43/26

    摘要: The production of hydrocarbons from a subterranean formation is enhanced by use of a well treatment fluid which contains a carboxylated guar which may be prepared by reacting a guar source and a derivatizing agent of the formula X(CH2)nCOOH or alkali salts thereof, wherein X is selected from the group consisting of —OSO2CH3; —OSO2C2H5; —OTs, —Br, and —I and n is between from 1 to 4. The intrinsic viscosity of the carboxylated guar in 2% KCl at 27° C. is at least 750 mL/g and the degree of substitution (DS) of the carboxylated guar is typically between from about 0.02 to about 0.15.

    摘要翻译: 通过使用含有羧基瓜耳胶的良好处理流体来提高来自地下层的烃的生产,所述羧酸化瓜尔胶可以通过使瓜尔胶源和式X(CH 2)n COOH的衍生化剂或其碱金属盐反应而制备,其中X 选自-OSO 2 CH 3; -OSO2C2H5; -OTs,-Br和-I,n在1至4之间。在27℃下2%KCl中羧化瓜尔酮的特性粘度至少为750mL / g,取代度(DS)为 羧化瓜尔胶通常在约0.02至约0.15之间。

    Liquid breaker for acid fracturing fluids
    8.
    发明授权
    Liquid breaker for acid fracturing fluids 有权
    酸性压裂液液体破碎机

    公开(公告)号:US07798228B2

    公开(公告)日:2010-09-21

    申请号:US12179618

    申请日:2008-07-25

    IPC分类号: E21B43/16 E21B43/26

    摘要: Liquid breakers can be used in methods and compositions for acid fracturing formations. The fracturing fluid includes a liquid breaker that decreases the viscosity of the fracturing fluid over time. The liquid breaker can also be produced in situ. The liquid breaker includes fluoroboric acid.

    摘要翻译: 液体破碎剂可用于酸性压裂地层的方法和组合物。 压裂液包括一种随时间降低压裂液的粘度的液体破碎机。 液体破碎机也可以原位生产。 液体破碎机包括氟硼酸。

    Methods of Using Water-Superabsorbent Polymers to Reduce Heat Transfer
    9.
    发明申请
    Methods of Using Water-Superabsorbent Polymers to Reduce Heat Transfer 失效
    使用水超吸收聚合物降低热传递的方法

    公开(公告)号:US20100233375A1

    公开(公告)日:2010-09-16

    申请号:US12788357

    申请日:2010-05-27

    IPC分类号: B05D3/10

    CPC分类号: E21B36/003 C09K8/592

    摘要: A thermal insulating packer fluid contains at least one water superabsorbent polymer and optionally water and/or brine, and a viscosifying polymer. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus.

    摘要翻译: 绝热封隔器流体包含至少一种水超吸收性聚合物和任选的水和/或盐水,以及增粘聚合物。 该组合物能够抑制生产管道不期望的热损失或不受控制的热传递至外环。 组合物的粘度足以降低环形空间内的对流流速。

    Method of Using Crosslinkable Brine Containing Compositions
    10.
    发明申请
    Method of Using Crosslinkable Brine Containing Compositions 有权
    含有组合物的可交联盐水的方法

    公开(公告)号:US20100175880A1

    公开(公告)日:2010-07-15

    申请号:US12353875

    申请日:2009-01-14

    申请人: Xiaolan Wang Qi Qu

    发明人: Xiaolan Wang Qi Qu

    IPC分类号: E21B43/00 E21B43/26

    摘要: A method of enhancing the productivity of a subterranean formation penetrated by a gas, oil or geothermal well consists of introducing into the formation and/or well a pumpable polymerizable fluid comprising a crosslinkable, mono functional alkene, multi-functional alkene (such as a difunctional alkene), a heat inducible free radical initiator and brine. The fluid may be used in the thermal insulation of production tubing or transfer pipes and hydraulic fracturing.

    摘要翻译: 提高由气体,油或地热井穿透的地层的生产率的方法包括将包含可交联的单官能烯烃,多官能烯烃(例如双官能的烯烃)的可泵送可聚合流体引入地层和/或井 烯烃),热诱导型自由基引发剂和盐水。 流体可用于生产管道或输送管道和水力压裂的隔热。