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    COMPOSITIONS AND METHODS FOR BREAKING A VISCOSITY INCREASING POLYMER AT VERY LOW TEMPERATURE USED IN DOWNHOLE WELL APPLICATIONS
    5.
    发明申请
    COMPOSITIONS AND METHODS FOR BREAKING A VISCOSITY INCREASING POLYMER AT VERY LOW TEMPERATURE USED IN DOWNHOLE WELL APPLICATIONS 审中-公开

    公开(公告)号：US20110152133A1

    公开(公告)日：2011-06-23

    申请号：US13039887

    申请日：2011-03-03

    申请人： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    发明人： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    IPC分类号： C09K8/00

    CPC分类号： C09K8/524 ,  C09K8/68 ,  C09K2208/26

    摘要： A composition for treating a portion of a wellbore or a portion of a subterranean formation is provided, the composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted to be within an appropriate range for the type of activator. A method for treating a portion of a wellbore or a portion of a subterranean formation, the method comprising the steps of: forming or providing a composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted within an appropriate range for the type of activator; and introducing the composition through a wellbore to treat a portion of a wellbore or a portion of a subterranean formation. The activator can be a water-soluble alkanoyl-donor compound or a chelated transition metal. Preferably, the composition further comprises an iron chelating agent. The composition and method are adapted for breaking a viscosity increasing polymer, such as xanthan. The method has particular applications where the static temperature of the portion of the wellbore or the portion of the subterranean formation to be treated is less than 100° F. (38° C.).

    Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications
    6.
    发明授权
    Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications 有权
    用于在井下井应用中使用的非常低的温度下破坏增粘聚合物的组合物和方法

    公开(公告)号：US07928040B2

    公开(公告)日：2011-04-19

    申请号：US11656872

    申请日：2007-01-23

    申请人： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    发明人： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    IPC分类号： E21B43/26 ,  C09K8/68

    CPC分类号： C09K8/524 ,  C09K8/68 ,  C09K2208/26

    摘要： A composition for treating a portion of a wellbore or a portion of a subterranean formation is provided, the composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted to be within an appropriate range for the type of activator. A method for treating a portion of a wellbore or a portion of a subterranean formation, the method comprising the steps of: forming or providing a composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted within an appropriate range for the type of activator; and introducing the composition through a wellbore to treat a portion of a wellbore or a portion of a subterranean formation. The activator can be a water-soluble alkanoyl-donor compound or a chelated transition metal. Preferably, the composition further comprises an iron chelating agent. The composition and method are adapted for breaking a viscosity increasing polymer, such as xanthan. The method has particular applications where the static temperature of the portion of the wellbore or the portion of the subterranean formation to be treated is less than 100° F. (38° C.).

    摘要翻译： 提供了一种用于处理一部分井孔或一部分地层的组合物，该组合物包含：（a）水; （b）过氧化氢源，和（c）用于过氧化氢源的活化剂; 其中将组合物的pH调节到活化剂类型的适当范围内。 一种用于处理井筒或地下地层的一部分的一部分的方法，所述方法包括以下步骤：形成或提供组合物，其包含：（a）水; （b）过氧化氢源，和（c）用于过氧化氢源的活化剂; 其中将组合物的pH调节到活化剂类型的适当范围内; 并通过井筒引入组合物以处理井筒或地下地层的一部分的一部分。 活化剂可以是水溶性烷酰基供体化合物或螯合过渡金属。 优选地，组合物还包含铁螯合剂。 该组合物和方法适用于破坏增粘聚合物如黄原胶。 该方法具有特定的应用，其中井眼部分或待处理的地下部分的静态温度小于100°F（38℃）。

    Methods and apparatus for gravel packing, fracturing or frac packing wells
    8.
    发明授权
    Methods and apparatus for gravel packing, fracturing or frac packing wells 失效
    砾石包装，压裂或压裂填料井的方法和装置

    公开(公告)号：US06749023B2

    公开(公告)日：2004-06-15

    申请号：US10041289

    申请日：2002-01-07

    申请人： Philip D. Nguyen ,  Michael W. Sanders

    发明人： Philip D. Nguyen ,  Michael W. Sanders

    IPC分类号： E21B4308

    CPC分类号： E21B43/08 ,  E21B43/045 ,  E21B43/267

    摘要： Improved methods and apparatus for completing a subterranean zone penetrated by a wellbore are provided. The improved methods include the steps of placing in the wellbore a perforated shroud (liner) having an internal sand screen therein (e.g., screens, screened pipes, perforated liners, prepacked screens, etc.), positioning about the perforated liner an alternate flowpath comprised of a plurality of “bypass” tubes or conduits having inlet passages or portions adapted to receive the gravel slurry as it reaches the apparatus and outlets for the slurry to reach the well annulus, and injecting particulate material (e.g., slurry) into the wellbore/perforated shroud and shroud/screen annuli, whereby the particulate material is uniformly packed into the two annuli and the zone. In one aspect of the invention, the multiple flow paths are provided via a series of blank tubes (e.g., without intermediate openings) with each tube extending only a portion of the length of each screen joint of the improved well tool. In another aspect of the invention, a plurality of axially-spaced “bundles” or series of radially-spaced, axially-extending bypass tubes are provided along the perforated shroud. A connector (or “mixer”) is positioned between adjacent tube series which fluidly connects the tubes in the two adjacent series. The sand control screen inside the perforated shroud can be an expandable-screen type screen. The expandable screen can be expanded all the way out to the inside wall (ID) of the perforated shroud, allowing the screen to obtain maximum size if desired.

    摘要翻译： 提供了用于完成由井眼穿透的地下区域的改进的方法和装置。 改进的方法包括以下步骤：在井眼中放置其中具有内部砂筛的穿孔护罩（衬垫）（例如，筛网，筛管，穿孔衬垫，预包装的筛网等），围绕穿孔衬套定位备有流路， 多个“旁路”管或管道具有入口通道或适于在其到达设备时接纳砾石浆料的部分，以及用于浆料到达井环的出口，以及将颗粒材料（例如浆料）注入井眼/ 穿孔护罩和护罩/屏蔽环，由此将颗粒材料均匀地包装到两个环和区域中。 在本发明的一个方面，多个流动路径经由一系列空白管（例如，不具有中间开口）提供，每个管仅延伸改进的井工具的每个筛网接头长度的一部分。 在本发明的另一方面，沿着穿孔的护罩设置多个沿轴向隔开的“束”或一系列径向间隔开的轴向延伸的旁通管。 连接器（或“混合器”）位于相邻管系列之间，流体连接两个相邻系列中的管。 穿孔护罩内的防砂屏可以是可扩展屏幕型屏幕。 可扩展屏幕可以一直扩展到穿孔护罩的内壁（ID），从而允许屏幕获得最大尺寸。

    Methods and compositions for treating subterranean formations
    9.
    发明授权
    Methods and compositions for treating subterranean formations 有权
    用于处理地下地层的方法和组合物

    公开(公告)号：US07998906B2

    公开(公告)日：2011-08-16

    申请号：US12229229

    申请日：2008-08-21

    申请人： Rajesh K. Saini ,  Michael W. Sanders ,  Fong-Fong Foo ,  Jeff L. Mundy

    发明人： Rajesh K. Saini ,  Michael W. Sanders ,  Fong-Fong Foo ,  Jeff L. Mundy

    IPC分类号： C09K8/60 ,  C09K8/68 ,  C09K8/74 ,  C23F11/18

    CPC分类号： C09K8/88 ,  C09K2208/26

    摘要： Methods and compositions useful in treating subterranean formations, and more particularly, breaker compositions that may be useful in treating subterranean formations wherein synthetic polymers are used, are provided. Of the many methods and compositions provided herein, one composition comprises a source of hydrogen peroxide and an activator. One method comprises providing a polymer breaker composition comprising a source of hydrogen peroxide and an activator; introducing the polymer breaker composition into a well bore which penetrates a subterranean formation; allowing the activator to activate the source of hydrogen peroxide to create an oxidizing species; and allowing the oxidizing species to break synthetic polymers present in the subterranean formation.

    摘要翻译： 提供了可用于处理地下地层的方法和组合物，更具体地，提供可用于处理其中使用合成聚合物的地下地层的破碎组合物。 在本文提供的许多方法和组合物中，一种组合物包含过氧化氢源和活化剂。 一种方法包括提供包含过氧化氢源和活化剂的聚合物破乳剂组合物; 将聚合物破碎剂组合物引入穿透地层的井眼中; 允许活化剂活化过氧化氢源以产生氧化物质; 并允许氧化物质破坏存在于地层中的合成聚合物。

    Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications
    10.
    发明授权
    Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications 有权

    公开(公告)号：US07923417B2

    公开(公告)日：2011-04-12

    申请号：US11656651

    申请日：2007-01-23

    申请人： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    发明人： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    IPC分类号： E21B43/26 ,  C09K8/68

    CPC分类号： C09K8/524 ,  C09K8/68 ,  C09K8/90 ,  C09K2208/26

    摘要： A composition for treating a portion of a wellbore or a portion of a subterranean formation is provided, the composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted to be within an appropriate range for the type of activator. A method for treating a portion of a wellbore or a portion of a subterranean formation, the method comprising the steps of: forming or providing a composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted within an appropriate range for the type of activator; and introducing the composition through a wellbore to treat a portion of a wellbore or a portion of a subterranean formation. The activator can be a water-soluble alkanoyl-donor compound or a chelated transition metal. Preferably, the composition further comprises an iron chelating agent. The composition and method are adapted for breaking a viscosity increasing polymer, such as xanthan. The method has particular applications where the static temperature of the portion of the wellbore or the portion of the subterranean formation to be treated is less than 100° F. (38° C.).