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    Treatment fluids containing a boron trifluoride complex and methods for use thereof
    2.
    发明授权
    Treatment fluids containing a boron trifluoride complex and methods for use thereof 有权
    含有三氟化硼配合物的处理液及其使用方法

    公开(公告)号：US09127194B2

    公开(公告)日：2015-09-08

    申请号：US13354461

    申请日：2012-01-20

    申请人： Enrique A. Reyes

    发明人： Enrique A. Reyes

    IPC分类号： E21B43/27 ,  C09K8/60 ,  C09K8/524 ,  C09K8/68 ,  C09K8/78 ,  C09K8/84 ,  C09K8/86 ,  E21B43/25

    CPC分类号： C09K8/52 ,  C09K8/524 ,  C09K8/68 ,  C09K8/78 ,  C09K8/845 ,  C09K8/86 ,  E21B37/00 ,  E21B43/25

    摘要： Treatment fluids for use in subterranean formations, particularly sandstone and other siliceous formations, may contain a source of fluoride ions to aid in mineral dissolution. In some cases, it may be desirable to generate the fluoride ions from a fluoride ion precursor, particularly a hydrofluoric acid precursor, such as a boron trifluoride complex. Methods for treating a subterranean formation can comprise providing a treatment fluid that comprises an aqueous base fluid, a boron trifluoride complex, and a chelating agent composition, and introducing the treatment fluid into a subterranean formation.

    摘要翻译： 用于地下地层，特别是砂岩和其他硅质地层的处理液可能含有氟离子源，有助于矿物溶解。 在一些情况下，可能需要从氟离子前体，特别是氢氟酸前体如三氟化硼络合物中产生氟离子。 用于处理地下地层的方法可以包括提供包含基础水溶液，三氟化硼络合物和螯合剂组合物的处理流体，并将处理流体引入到地下地层中。

    Self-diverting foamed system
    4.
    发明授权
    Self-diverting foamed system 有权
    自发泡沫系统

    公开(公告)号：US07148184B2

    公开(公告)日：2006-12-12

    申请号：US10649055

    申请日：2003-08-27

    申请人： Pia-Angela Francini ,  Keng Chan ,  Mark Brady ,  Christopher Fredd

    发明人： Pia-Angela Francini ,  Keng Chan ,  Mark Brady ,  Christopher Fredd

    IPC分类号： C09K8/78 ,  E21B43/16

    CPC分类号： C09K8/72 ,  C09K2208/30 ,  Y10S507/933

    摘要： A method is given for diverting acids in matrix acidizing and acid fracturing. The acids are diverted with a diverting agent that is an energized or foamed acidic viscoelastic surfactant system that contains a viscoelastic surfactant that gels and increases in viscosity when the acid in the foamed acidic viscoelastic surfactant system is spent. The method provides a synergistic combination of the diverting capabilities of foams and the diverting capabilities of viscoelastic gel systems. The resistance to flow of the gelled foamed viscoelastic surfactant system is greater than expected from a foam or a viscoelastic gel system alone.

    摘要翻译： 给出了在基质酸化和酸性压裂中转移酸的方法。 酸被转移剂转移，其是带电或发泡的酸性粘弹性表面活性剂体系，其包含粘弹性表面活性剂，当发泡酸性粘弹性表面活性剂体系中的酸被消耗时，其粘度增加并增加粘度。 该方法提供了泡沫的转移能力和粘弹性凝胶体系的转移能力的协同组合。 胶凝发泡粘弹性表面活性剂体系的抗流动性比单独的泡沫或粘弹性凝胶体系大大超过预期。

    Composition and process for removing sulfur scale from interstices in petroleum bearing formations and the like to improve the flow of petroleum
    6.
    发明授权
    Composition and process for removing sulfur scale from interstices in petroleum bearing formations and the like to improve the flow of petroleum 失效
    用于从含石油地层等的间隙除去硫垢的组合物和方法，以改善石油的流动

    公开(公告)号：US4213866A

    公开(公告)日：1980-07-22

    申请号：US957537

    申请日：1978-11-03

    申请人： Robert M. Ashby ,  Frederick S. Kaveggia

    发明人： Robert M. Ashby ,  Frederick S. Kaveggia

    IPC分类号： C09K8/532 ,  C09K8/78 ,  E21B43/27

    CPC分类号： C09K8/532 ,  C09K8/78 ,  Y10S507/927 ,  Y10S507/934

    摘要： Petroleum values bound in formations by sulfur scale blocked passages are freed by effectively dissolving the scale and formation rock with a solution containing a primary acid, a catalyst, and, preferably, a chelating or sequestering agent and a wetting agent. The primary acid is preferably hydrochloric. The catalyst is tetravalent or pentavalent vanadium. The chelating agent is at least one member selected from the class consisting of dicarboxylic acid, or tricarboxylic acid, or both acids, and glycerine, wherein the above acid group is always present. The primary acid attacks the sulfur scale and formation rock, and its action is substantially completed because of the catalyst. The chelating or sequestering agent maintains the dissolved minerals in solution. The wetting agent enables mineral penetration.

    摘要翻译： 通过用含有初级酸，催化剂，优选螯合剂或螯合剂和润湿剂的溶液有效地溶解氧化皮和形成岩石来释放通过硫垢阻挡通道结合在地层中的石油值。 初级酸优选为盐酸。 催化剂是四价或五价钒。 螯合剂是选自二羧酸或三羧酸，或两者的酸和甘油中的至少一种，其中总是存在上述酸基。 主要酸侵蚀硫垢和地层岩石，其作用基本上由于催化剂而完成。 螯合剂或螯合剂将溶解的矿物质保持在溶液中。 润湿剂使矿物渗透。