Methods of setting particulate plugs in horizontal well bores using low-rate slurries
    71.
    发明授权
    Methods of setting particulate plugs in horizontal well bores using low-rate slurries 有权
    使用低速浆料在水平井眼中设置颗粒塞的方法

    公开(公告)号:US08074715B2

    公开(公告)日:2011-12-13

    申请号:US12354551

    申请日:2009-01-15

    IPC分类号: E21B33/12 E21B33/134

    CPC分类号: E21B33/134 E21B33/1208

    摘要: Methods for setting particulate plugs in at least partially horizontal sections of well bores are disclosed. In one embodiment, a method comprises the step of selecting a deposition location for a particulate plug within the at least partially horizontal section of the well bore. The method further comprises the step of providing a pumping conduit capable of delivering slurries to the deposition location. The method further comprises the step of pumping a first slurry through the pumping conduit to the deposition location such that a velocity of the first slurry in the well bore at the deposition location is less than or equal to the critical velocity of the first slurry in the well bore at the deposition location.

    摘要翻译: 公开了在井眼的至少部分水平部分中设置颗粒塞的方法。 在一个实施例中,一种方法包括为井筒的至少部分水平部分内的颗粒塞选择沉积位置的步骤。 该方法还包括提供能够将浆料输送到沉积位置的泵送导管的步骤。 该方法还包括将第一浆料泵送到沉积位置的步骤,使得在沉积位置的井眼中的第一浆料的速度小于或等于第一浆料在第二浆料的临界速度 在沉积位置钻孔。

    Non-acid acidizing methods and compositions
    72.
    发明授权
    Non-acid acidizing methods and compositions 有权
    非酸酸化方法和组合物

    公开(公告)号:US07921912B2

    公开(公告)日:2011-04-12

    申请号:US11502284

    申请日:2006-08-10

    IPC分类号: E21B43/25

    CPC分类号: C09K8/72

    摘要: Methods of acidizing subterranean formations or well bores, and more specifically, to acidizing systems involving acid-generating fluids that comprise acid-generating compounds and associated methods are provided. An example is a method that comprises: providing an acid-generating fluid that comprises an acid-generating compound; placing the acid-generating fluid into a subterranean formation; and allowing an acid to generate from the acid-generating fluid.

    摘要翻译: 提供酸化地下地层或井眼的方法,更具体地说,涉及包含产酸化合物和相关方法的产酸流体的酸化体系。 一个实例是一种方法,其包括:提供包含酸产生化合物的产酸流体; 将产酸流体置于地层中; 并且允许酸从产酸流体产生。

    Methods of Fluid Loss Control and Fluid Diversion in Subterranean Formations
    73.
    发明申请
    Methods of Fluid Loss Control and Fluid Diversion in Subterranean Formations 审中-公开
    地下地层流体流失控制和流体导流方法

    公开(公告)号:US20110028358A1

    公开(公告)日:2011-02-03

    申请号:US12512232

    申请日:2009-07-30

    IPC分类号: C09K8/68

    摘要: Improved methods of placing and/or diverting treatment fluids in subterranean formations are provided. In one embodiment, the methods comprise introducing a treatment fluid into a subterranean formation penetrated by a well bore, wherein the treatment fluid comprises: a base fluid, and a plurality of solid particulates comprising at least one selected from the group consisting of: a scale inhibitor, a chelating agent, and a combination thereof, wherein the solid particulates are substantially insoluble in the base fluid; and allowing at least a portion of the solid particulates to form a barrier or at partially divert a subsequent fluid.

    摘要翻译: 提供了将处理液放置和/或转移到地下地层中的改进方法。 在一个实施方案中,所述方法包括将处理流体引入穿透井眼的地层中,其中处理流体包括:基础流体和多个固体颗粒,其包含选自以下的至少一种: 抑制剂,螯合剂及其组合,其中固体颗粒基本上不溶于基础液体; 并且允许至少一部分固体微粒形成屏障或部分地转移随后的流体。

    Treatment fluids comprising relative permeability modifiers and methods of use
    74.
    发明申请
    Treatment fluids comprising relative permeability modifiers and methods of use 有权
    包含相对渗透性改性剂和使用方法的处理流体

    公开(公告)号:US20100216672A1

    公开(公告)日:2010-08-26

    申请号:US12380120

    申请日:2009-02-24

    申请人: Bradley L. Todd

    发明人: Bradley L. Todd

    IPC分类号: C09K8/60

    摘要: Treatment fluids for and methods of treating subterranean formations are provided. In certain embodiments, a method is provided comprising providing a treatment fluid comprising a relative permeability modifier, a delayed filter cake breaker, and a carrier fluid, contacting at least a portion of a filter cake in a subterranean formation with the treatment fluid, and removing at least a portion of the filter cake.

    摘要翻译: 提供了处理流体和处理地下地层的方法。 在某些实施方案中,提供了一种方法,其包括提供包含相对渗透性改性剂,延迟滤饼破碎剂和载体流体的处理流体,使地下地层中的滤饼的至少一部分与处理流体接触, 滤饼的至少一部分。

    Degradable surfactants and methods for use
    75.
    发明授权
    Degradable surfactants and methods for use 失效
    可降解表面活性剂和使用方法

    公开(公告)号:US07677315B2

    公开(公告)日:2010-03-16

    申请号:US11244345

    申请日:2005-10-05

    IPC分类号: E21B43/26

    摘要: The present invention provides a method of generating an acid downhole that comprise providing a degradable surfactant; introducing the degradable surfactant into a well bore that penetrates a subterranean formation; and allowing at least a portion of the degradable surfactant to degrade, thereby releasing an acid. Also provided are methods of degrading an acid-soluble component present within a subterranean formation, and methods of reducing the viscosity of a viscosified treatment fluid.

    摘要翻译: 本发明提供一种产生酸性井下的方法,其包括提供可降解的表面活性剂; 将可降解表面活性剂引入穿透地层的井眼中; 并使至少一部分可降解表面活性剂降解,从而释放酸。 还提供了降解存在于地层内的酸溶性组分的方法以及降低稠化处理流体的粘度的方法。

    Filter cake degradation compositions and methods of use in subterranean operations
    77.
    发明授权
    Filter cake degradation compositions and methods of use in subterranean operations 失效
    滤饼降解组合物和地下操作中使用的方法

    公开(公告)号:US07598208B2

    公开(公告)日:2009-10-06

    申请号:US11435236

    申请日:2006-05-16

    申请人: Bradley L. Todd

    发明人: Bradley L. Todd

    IPC分类号: C09K8/536

    CPC分类号: C09K8/52

    摘要: The present invention relates to methods and compositions for degrading filter cakes in subterranean formations, and more specifically, to improved methods and compositions for degrading filter cakes that comprise acid-soluble portions and polymeric portions. In one embodiment, the present invention provides a method of degrading a filter cake comprising an acid-soluble portion and a polymeric portion in a subterranean formation comprising the steps of: introducing a filter cake degradation composition comprising a delayed-release acid component and a delayed-release oxidizer component to a well bore penetrating the subterranean formation; allowing the delayed-release acid component to release an acid derivative and the delayed-release oxidizer component to release an acid-consuming component; allowing the acid-consuming component to interact with the acid derivative to delay a reaction between at least a portion of the acid derivative and at least a portion of the acid-soluble portion of the filter cake and to produce hydrogen peroxide; allowing the acid derivative to degrade at least a portion of the acid-soluble portion of the filter cake after a delay period; and allowing the hydrogen peroxide to degrade at least a portion of the polymeric portion of the filter cake.

    摘要翻译: 本发明涉及降解地层中的滤饼的方法和组合物,更具体地说,涉及降解包含酸溶性部分和聚合物部分的滤饼的改进方法和组合物。 在一个实施方案中,本发明提供了一种降解含有酸溶性部分和地层中聚合物部分的滤饼的方法,包括以下步骤:引入包含延迟释放酸组分和延迟释放酸组分的滤饼降解组合物 - 将氧化剂组分释放到穿透地层的井眼; 允许延迟释放的酸组分释放酸衍生物和延迟释放氧化剂组分以释放酸消耗组分; 允许酸消耗组分与酸衍生物相互作用以延迟酸衍生物的至少一部分与滤饼的酸溶性部分的至少一部分之间的反应并产生过氧化氢; 允许酸衍生物在延迟期后降解滤饼的酸溶性部分的至少一部分; 并且允许过氧化氢降解滤饼的聚合物部分的至少一部分。

    Self-degrading fibers and associated methods of use and manufacture
    79.
    发明授权
    Self-degrading fibers and associated methods of use and manufacture 有权
    自发降解纤维及相关使用和制造方法

    公开(公告)号:US07267170B2

    公开(公告)日:2007-09-11

    申请号:US11048417

    申请日:2005-01-31

    摘要: Methods are provided including a method of treating a portion of a subterranean formation comprising: providing a treatment fluid comprising a plurality of self-degrading fibers, the self-degrading fibers comprising an outer shell and a core liquid; placing the treatment fluid into a subterranean formation; and treating a portion of the subterranean formation. Additional methods are also provided.

    摘要翻译: 提供了包括处理地下地层部分的方法的方法,包括:提供包含多种自降解纤维的处理流体,所述自降解纤维包含外壳和芯液; 将处理流体置于地层中; 以及处理所述地层的一部分。 还提供了附加的方法。