Filter cake degradation compositions and methods of use in subterranean operations

    公开(公告)号:US20060205608A1

    公开(公告)日:2006-09-14

    申请号:US11435236

    申请日:2006-05-16

    申请人: Bradley Todd

    发明人: Bradley Todd

    IPC分类号: C09K8/52

    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.

    Self-degrading fibers and associated methods of use and manufacture
    54.
    发明申请
    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:US20060169449A1

    公开(公告)日:2006-08-03

    申请号:US11048417

    申请日:2005-01-31

    摘要: This invention relates to the use of degradable fibers, and more particularly, to self-degrading fibers and their associated methods of use and manufacture. In one embodiment, the present invention provides a method of treating a portion of a subterranean formation comprising the steps of: 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.

    摘要翻译: 本发明涉及可降解纤维的用途,更具体地说,涉及自降解纤维及其相关的使用和制造方法。 在一个实施方案中,本发明提供了处理地下地层的一部分的方法,包括以下步骤: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。

    Compositions and methods for improving fracture conductivity in a subterranean well
    58.
    发明申请
    Compositions and methods for improving fracture conductivity in a subterranean well 审中-公开
    用于改善地下井的断裂导电性的组合物和方法

    公开(公告)号:US20050130848A1

    公开(公告)日:2005-06-16

    申请号:US11048489

    申请日:2005-02-01

    IPC分类号: C09K8/80 E21B43/267 E21B43/00

    CPC分类号: C09K8/80 C09K8/805 E21B43/267

    摘要: The invention relates to enhancing fluid flow from subterranean formations, and more particularly, to enhancing the conductivity of fractures in a subterranean formation so as to enhance fluid flow therethrough. In one embodiment, the present invention provides a proppant matrix composition comprising at least a plurality of proppant particulates and at least a plurality of composite particles, the composite particles comprising a degradable material and a filler material.

    摘要翻译: 本发明涉及增强来自地下地层的流体流动,更具体地说,涉及提高地层中裂缝的导电性,从而增强流体的流动。 在一个实施方案中,本发明提供了包含至少多个支撑剂颗粒和至少多个复合颗粒的支撑剂基质组合物,所述复合颗粒包含可降解材料和填料。

    Filter cake degradation compositions and methods of use in subterranean operations
    59.
    发明申请
    Filter cake degradation compositions and methods of use in subterranean operations 有权
    滤饼降解组合物和地下操作中使用的方法

    公开(公告)号:US20050126785A1

    公开(公告)日:2005-06-16

    申请号:US10736152

    申请日:2003-12-15

    申请人: Bradley Todd

    发明人: Bradley Todd

    IPC分类号: C09K8/52 E21B43/16

    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。

    Method and apparatus for temporarily maintaining a downhole foam element in a compressed state
    60.
    发明申请
    Method and apparatus for temporarily maintaining a downhole foam element in a compressed state 审中-公开
    用于临时保持处于压缩状态的井下泡沫元件的方法和装置

    公开(公告)号:US20050056425A1

    公开(公告)日:2005-03-17

    申请号:US10663415

    申请日:2003-09-16

    IPC分类号: E21B33/12 E21B43/12 E21B43/10

    CPC分类号: E21B33/1208 E21B43/12

    摘要: The present invention is directed to a degradable wrap and method for temporarily maintaining a downhole foam element in a compressed state. The degradable wrap is fitted around the foam element and temporarily maintains the foam element in a compressed state against an outer surface of a downhole sand control device. It is provided to keep the foam element in the compressed state while a production assembly comprising the downhole sand control device and foam element mounted thereon is placed downhole in a well bore adjacent to a production zone. The degradable wrap is permeable to the production fluid and degrades over time. Once the degradable wrap has degraded the foam element fills the annulus between the production screen and casing string or well bore wall. The foam element acts to inhibit the flow of water along the annulus and is useful in zone isolation.

    摘要翻译: 本发明涉及一种用于临时保持处于压缩状态的井下泡沫元件的可降解包装和方法。 可降解包裹物围绕泡沫元件安装,并将泡沫元件临时保持在压缩状态下抵抗井下砂控制装置的外表面。 提供用于将泡沫元件保持在压缩状态,同时包括安装在其上的井下防砂装置和泡沫元件的生产组件放置在与生产区相邻的井眼内的井下。 可降解的包装对生产流体是可渗透的并且随时间而降解。 一旦可降解的包装已经降解,泡沫元件填充生产屏幕和套管柱或井眼壁之间的环空。 泡沫元件用于抑制沿着环带的水流,并且可用于区域隔离。