SPECTRAL IDENTIFICATION OF PROPPANT IN SUBTERRANEAN FRACTURE ZONES
    21.
    发明申请
    SPECTRAL IDENTIFICATION OF PROPPANT IN SUBTERRANEAN FRACTURE ZONES 有权
    在地下断裂带中的特征的光谱鉴定

    公开(公告)号:US20120080588A1

    公开(公告)日:2012-04-05

    申请号:US13237406

    申请日:2011-09-20

    IPC分类号: G01V5/10

    CPC分类号: G01V5/101

    摘要: Proppant placed in a subterranean fracture zone is detected with a spectral identification method in which capture gamma ray spectra are obtained during a logging run carried out with a logging tool having a neutron emitting source and at least one detector sensitive to thermal neutron capture gamma rays. Capture gamma rays from one or more high thermal neutron cross-section materials in the proppant are distinguished from capture gamma rays produced by thermal neutron capture reactions with other downhole formation and borehole constituents utilizing a spectral processing/deconvolution technique. The capture gammas rays from the high thermal neutron capture cross section material in the proppant are used to identify propped fracture zones either alone or in combination with other proppant identification methods which rely on measuring thermal neutron related count rates and/or thermal neutron capture cross-sections from neutron, compensated neutron, and/or pulsed neutron capture logging tools.

    摘要翻译: 使用光谱识别方法检测放置在地下断裂带中的支架,其中在使用具有中子发射源的测井工具进行测井运行期间获得捕获伽马射线光谱,并且至少一个对热中子捕获伽马射线敏感的检测器。 从支撑剂中的一个或多个高热中子横截面材料捕获伽马射线与使用光谱处理/去卷积技术的其他井下形成和钻孔成分的热中子捕获反应产生的捕获伽马射线不同。 来自支撑剂中高热中子捕获截面材料的捕获伽马射线用于单独地或与依赖于测量热中子相关计数速率和/或热中子捕获截面的其它支撑剂识别方法的组合来识别支撑的断裂带, 中子,补偿中子和/或脉冲中子捕获测井工具的截面。

    Proppants for gel clean-up
    23.
    发明授权
    Proppants for gel clean-up 有权
    用于凝胶清理的支架

    公开(公告)号:US07721804B2

    公开(公告)日:2010-05-25

    申请号:US12166504

    申请日:2008-07-02

    IPC分类号: E21B43/267

    摘要: Methods of incorporating a chemical breaker onto a proppant that will permit release of the breaker after the proppant has been placed in a hydraulic fracture are provided. The methods utilize a chemical breaker coated on the surface of a non-porous proppant grain or placed in the pore space of a porous proppant grain and secondarily coated with an outer layer which can be tailored to delay the release of the breaker.

    摘要翻译: 提供了将化学破碎剂掺入支撑剂的方法,该支撑剂将在支撑剂已经被置于水力裂缝中之后允许释放破坏剂。 该方法使用涂覆在无孔支撑剂颗粒表面上的化学破碎剂或者放置在多孔支撑剂颗粒的孔隙空间中,并且二次涂覆有外层,该层可以被定制以延迟断裂器的释放。

    Method of fracturing a subterranean formation with a lightweight
propping agent
    26.
    发明授权
    Method of fracturing a subterranean formation with a lightweight propping agent 失效
    用轻质支撑剂压裂地层的方法

    公开(公告)号:US5188175A

    公开(公告)日:1993-02-23

    申请号:US769584

    申请日:1991-10-02

    申请人: Larrie Sweet

    发明人: Larrie Sweet

    IPC分类号: C09K8/62 C09K8/80 E21B43/267

    摘要: A lightweight propping agent made from kaolin clay or mixtures of kaolin clay and lightweight aggregate and having an alumina content between 25% and 40%, a specific gravity of from 2.20 to 2.60 and better conductivity than sand at pressures up to 8,000 psi.

    摘要翻译: 由高岭土或高岭土和轻质骨料的混合物制成的轻质支撑剂,氧化铝含量在25%至40%之间,比重为2.20至2.60,并且在高达8,000psi的压力下具有比砂更好的导电性。