Compositions and methods for breaking hydraulic fracturing fluids

    公开(公告)号:US10294414B2

    公开(公告)日:2019-05-21

    申请号:US15512174

    申请日:2015-09-03

    Applicant: Arkema Inc.

    Abstract: A breaker composition for use in a fracturing fluid comprises water, at least one peroxide (e.g., tert-butyl hydroperoxide), and optionally at least one alcohol (e.g., propylene glycol and/or a butyl alcohol). The peroxide(s) and optional alcohol(s) are present in amounts effective to reduce the viscosity of a fracturing fluid at a temperature of 90-300 F. (the “breaking temperature”), and to prevent rehealing of the fracturing fluid, i.e., to maintain the reduced viscosity for a period of time after the temperature is reduced from the breaking temperature to a temperature below the breaking temperature (e.g., after the temperature is reduced from the breaking temperature to room temperature).

    Metallocarbene complex peroxide activators
    5.
    发明授权
    Metallocarbene complex peroxide activators 有权
    金属络合物复合过氧化物活化剂

    公开(公告)号:US08961822B2

    公开(公告)日:2015-02-24

    申请号:US13792749

    申请日:2013-03-11

    Applicant: Arkema Inc.

    CPC classification number: C11D3/3951 C11D3/168 C11D3/3932

    Abstract: A bleaching composition comprising a peroxy compound and one or more activator present in an effective amount to activate the peroxy compound, present in an amount effective to accomplish bleaching or cleaning or oxidation. The activator is a metallocarbene of the general structure (XX′C)yMLn′ where M represents a metal center, C represents the carbene carbon bound to the metal center, X and X′ may be the same or different and may furthermore be part of a cyclic structure, Ln′ represents one or more other ligands which may or may not include one or more metal centers, and where y≧1.

    Abstract translation: 一种漂白组合物,其包含有效量的过氧化合物和一种或多种活化剂以活化过氧化合物,以有效实现漂白或清洁或氧化的量存在。 活化剂是一般结构(XX'C)yMLn'的金属苝,其中M表示金属中心,C表示与金属中心结合的碳烯碳,X和X'可以相同或不同,并且还可以是 环状结构,Ln'表示一个或多个其它配体,其可以或可以不包括一个或多个金属中心,并且其中y≥1。

    METALLOCARBENE COMPLEX PEROXIDE ACTIVATORS
    9.
    发明申请
    METALLOCARBENE COMPLEX PEROXIDE ACTIVATORS 有权
    METALLOCARBENE复合过氧化物活化剂

    公开(公告)号:US20130190219A1

    公开(公告)日:2013-07-25

    申请号:US13792749

    申请日:2013-03-11

    Applicant: Arkema Inc.

    CPC classification number: C11D3/3951 C11D3/168 C11D3/3932

    Abstract: A bleaching composition comprising a peroxy compound and one or more activator present in an effective amount to activate the peroxy compound, present in an amount effective to accomplish bleaching or cleaning or oxidation. The activator is a metallocarbene of the general structure (XX′C)yMLn′ where M represents a metal center, C represents the carbene carbon bound to the metal center, X and X′ may be the same or different and may furthermore be part of a cyclic structure, Ln′ represents one or more other ligands which may or may not include one or more metal centers, and where y≧1.

    Abstract translation: 一种漂白组合物,其包含有效量的过氧化合物和一种或多种活化剂以活化过氧化合物,以有效实现漂白或清洁或氧化的量存在。 活化剂是一般结构(XX'C)yMLn'的金属苝,其中M表示金属中心,C表示与金属中心结合的碳烯碳,X和X'可以相同或不同,并且还可以是 环状结构,Ln'表示一个或多个其它配体,其可以包括或可以不包括一个或多个金属中心,并且其中y> = 1。

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