Amidoamine salt-based viscosifying agents and methods of use
    2.
    发明授权
    Amidoamine salt-based viscosifying agents and methods of use 有权
    酰胺胺盐类增粘剂及其使用方法

    公开(公告)号:US07125825B2

    公开(公告)日:2006-10-24

    申请号:US10424119

    申请日:2003-04-25

    Inventor: David Kelly Moss

    Abstract: Viscoelastic surfactants are described for use in aqueous systems to generate thickened fluids. The surfactants are alkyl amidoamine salts of inorganic acids and/or organic acids. The fluids may also contain inorganic salts, organic salts or mixtures thereof. Additionally, the fluids may contain a co-surfactant. These fluids are particularly useful in oilfield applications such as hydraulic fracturing, gravel packing, drilling, completion, etc. Viscoelastic fluids of the invention are also useful in industrial and consumer product fluid applications as rheology control agents.

    Abstract translation: 描述了用于水系统中的粘弹性表面活性剂以产生增稠流体。 表面活性剂是无机酸和/或有机酸的烷基酰氨基胺盐。 流体还可以含有无机盐,有机盐或其混合物。 此外,流体可以含有辅助表面活性剂。 这些流体在诸如水力压裂,砾石填充,钻孔,完井等的油田应用中特别有用。本发明的粘弹性流体在工业和消费品流体应用中也可用作流变控制剂。

    Acid thickeners and uses thereof
    4.
    发明授权
    Acid thickeners and uses thereof 有权
    酸增稠剂及其用途

    公开(公告)号:US07060661B2

    公开(公告)日:2006-06-13

    申请号:US10157565

    申请日:2002-05-29

    Abstract: The present invention generally relates to aqueous, acidic compositions thickened with an amidoamine oxide gelling agent and/or viscoelastic surfactant of the general formula I: wherein R1 is a saturated or unsaturated, straight or branched chain aliphatic group of from about 7 to about 30 carbon atoms, R2 is a divalent alkylene group of 2–6 carbon atoms which may be linear or branched, substituted or unsubstituted, and R3 and R4 are independently C1–C4 alkyl or hydroxyalkyl groups or together they form a heterocyclic ring of up to six members, and R5 is hydrogen or a C1–C4 alkyl or hydroxyalkyl group. The aforementioned gelling agents advantageously provide gels that do not undergo phase separation over extended periods of time and exhibit high heat stability. The thickened acid gels of the invention have applications in household and industrial cleaners and degreasers, oilfield stimulation applications and the like.

    Abstract translation: 本发明一般涉及用通式I的酰胺胺氧化物胶凝剂和/或粘弹性表面活性剂增稠的水性,酸性组合物:其中R 1是饱和或不饱和的直链或支链脂族基团 为约7至约30个碳原子,R 2 2是可以是直链或支链,取代或未取代的2-6个碳原子的二价亚烷基,R 3 >和R 4独立地是C 1 -C 4烷基或羟烷基,或者它们一起形成最多六个成员的杂环,并且 R 5是氢或C 1 -C 4烷基或羟烷基。 上述胶凝剂有利地提供了长时间不经历相分离并表现出高热稳定性的凝胶。 本发明的增稠酸凝胶可用于家用和工业清洁剂和脱脂剂,油田刺激应用等。

    Viscoelastic surfactant composition having improved rheological properties and method of using for treating subterranean formations
    5.
    发明申请
    Viscoelastic surfactant composition having improved rheological properties and method of using for treating subterranean formations 失效
    具有改善的流变性质的粘弹性表面活性剂组合物和用于处理地下地层的方法

    公开(公告)号:US20060025321A1

    公开(公告)日:2006-02-02

    申请号:US10903581

    申请日:2004-07-30

    CPC classification number: C09K8/68 C09K2208/30

    Abstract: A viscoelastic surfactant composition having improved rheological performance comprising one or more quaternized amidoamine surfactants, one or more tertiary amine amides, one or more polymeric acids and one or more electrolytes, viscosified aqueous fluids comprising the surfactant composition and methods of making and using the viscosified aqueous fluid for treating subterranean formations.

    Abstract translation: 一种具有改进的流变性能的粘弹性表面活性剂组合物,其包含一种或多种季铵化的酰氨基胺表面活性剂,一种或多种叔胺酰胺,一种或多种聚合酸和一种或多种电解质,包含表面活性剂组合物的粘稠水性流体和制备和使用粘稠水 用于处理地下地层的流体。

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