Microemulsion and Nanoemulsion Breaker Fluids With Organic Peroxides
    21.
    发明申请
    Microemulsion and Nanoemulsion Breaker Fluids With Organic Peroxides 有权
    微乳液和纳米乳液破碎液与有机过氧化物

    公开(公告)号:US20130324445A1

    公开(公告)日:2013-12-05

    申请号:US13905775

    申请日:2013-05-30

    CPC classification number: C09K8/68 C09K8/90 C09K2208/26

    Abstract: Incorporating at least oil-soluble organic peroxide into a mixture of an aqueous phase and at least one surfactant creates a breaker fluid that is a microemulsion or a nanoemulsion that can then perform as an internal breaker for reducing the viscosity of aqueous fluids gelled with a polymer, such as a crosslinked polysaccharide. One phase of the breaker fluid is water or water-based, e.g. brine, containing at least one oil-soluble organic peroxide as a non-aqueous internal phase that will, over time and optionally with heat, break the polymer-gelled portion of the gel. The overall breaking using the breaker fluid is slower as compared to introducing the organic peroxide breaker in a non-microemulsified or non-nanoemulsified form.

    Abstract translation: 将至少油溶性有机过氧化物并入水相和至少一种表面活性剂的混合物中形成破乳剂流体,其是微乳液或纳米乳液,然后可以将其作为内部破碎剂,以降低用聚合物凝胶化的水性流体的粘度 ,如交联多糖。 断路器流体的一相是水或水基的,例如。 盐水,其含有至少一种作为非水性内相的油溶性有机过氧化物,其将随着时间和任选地加热而破坏凝胶的聚合物凝胶化部分。 与使用非微乳化或非纳米乳化形式的有机过氧化物破乳剂相比,使用破乳剂流体的整体破坏较慢。

    Well Treatment Methods and Fluids
    25.
    发明申请

    公开(公告)号:US20160289548A1

    公开(公告)日:2016-10-06

    申请号:US15178140

    申请日:2016-06-09

    Abstract: A method includes forming a well treatment fluid by combining an aqueous fluid, a viscosifying agent, a crosslinker, and a rheology modifier containing an aldehyde. The viscosifying agent is crosslinked, increasing viscosity of the fluid. The method includes treating a well with the fluid exhibiting the increased viscosity, chemically changing the aldehyde after the crosslinking and thereby forming an acid, and decreasing viscosity of the crosslinked fluid as a result of forming the acid. The aldehyde may be glyoxal which forms oxalic acid, breaking a crosslink. A well treatment fluid is formulated with ingredients including an aqueous fluid and a viscosifying agent and a crosslinker configured to crosslink the viscosifying agent. The fluid includes a rheology modifier containing an aldehyde. The fluid may lack an aldehyde crosslinking delay additive.

    METHOD OF ENHANCING THE COMPLEXITY OF A FRACTURE NETWORK WITHIN A SUBTERRANEAN FORMATION
    27.
    发明申请
    METHOD OF ENHANCING THE COMPLEXITY OF A FRACTURE NETWORK WITHIN A SUBTERRANEAN FORMATION 审中-公开
    增强裂缝网络在地下形成中的复杂性的方法

    公开(公告)号:US20140251626A1

    公开(公告)日:2014-09-11

    申请号:US14199674

    申请日:2014-03-06

    Abstract: The complexity of a fracture network within a subterranean formation may be enhanced by pumping a high breakdown pressure fluid followed by a low breakdown pressure fluid into the formation. The method increases the Stimulated Reservoir Volume (SRV) of the formation and provides for a network of ancillary fractures within the formation.

    Abstract translation: 可以通过将高击穿压力流体跟随低击穿压力流体泵送到地层中来增强地层内的断裂网络的复杂性。 该方法增加了地层的受压储层体积(SRV),并提供了地层内的辅助裂缝网络。

    USE OF HEXOSE OXIDASES TO CREATE HYDROGEN PEROXIDE IN AQUEOUS WELL TREATMENT FLUIDS
    28.
    发明申请
    USE OF HEXOSE OXIDASES TO CREATE HYDROGEN PEROXIDE IN AQUEOUS WELL TREATMENT FLUIDS 有权
    使用HEXOSE氧化物在水溶性治疗液中产生过氧化氢

    公开(公告)号:US20130312969A1

    公开(公告)日:2013-11-28

    申请号:US13960261

    申请日:2013-08-06

    Abstract: A hydrocarbon-bearing subterranean formation may be treated with an aqueous well treatment fluid which contains a hexose oxidase, such as glucose oxidase, mannose oxidase or galactose oxidase. The aqueous well treatment fluid further may contain a viscosifying polymer and an aldohexose. The aldohexose reacts in-situ with the hexose oxidase and molecular oxygen to produce hydrogen peroxide. The hydrogen peroxide may then act as a breaker.

    Abstract translation: 含烃地层可以用含有己糖氧化酶如葡萄糖氧化酶,甘露糖氧化酶或半乳糖氧化酶的含水井处理液处理。 含水井处理液还可以含有增稠聚合物和己二糖。 己糖酸与己糖氧化酶和分子氧原位反应产生过氧化氢。 然后,过氧化氢可以用作断路器。

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