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    PNC TOOLS USED TO LOCATE PROPPANT NEAR A BOREHOLE
    1.
    发明申请
    PNC TOOLS USED TO LOCATE PROPPANT NEAR A BOREHOLE 审中-公开
    PNC工具用于定位靠近钻孔的推荐

    公开(公告)号：WO2013165780A1

    公开(公告)日：2013-11-07

    申请号：PCT/US2013/037979

    申请日：2013-04-24

    申请人： CARBO CERAMICS INC.

    发明人： SMITH, JR., Harry D. ,  HAN, Xiaogang ,  DUENCKEL, Robert

    IPC分类号： E21B43/267 ,  G01V5/10

    CPC分类号： E21B43/04 ,  E21B43/267 ,  E21B47/1015

    摘要： Methods are provided for identifying the location and height of induced subterranean formation fractures and the presence of any associated frac-pack or gravel pack material in the vicinity of the borehole using pulsed neutron capture (PNC) logging tools. The proppant/sand used in the fracturing and packing processes is tagged with a thermal neutron absorbing material. When proppant is present, increases in detected PNC formation and/or borehole component cross-sections, combined with decreases in measured count rates, are used to determine the location of the formation fractures and the presence and percent fill of pack material in the borehole region. Changes in measured formation cross-sections relative to changes in other PNC parameters provide a relative indication of the proppant in fractures compared to that in the borehole region

    摘要翻译： 提供了用于使用脉冲中子捕获（PNC）测井工具来识别诱发的地层岩石断裂的位置和高度以及在钻孔附近存在任何相关压裂填料或砾石填充材料的方法。 在压裂和包装过程中使用的支撑剂/砂用热中子吸收材料标记。 当支撑剂存在时，检测到的PNC形成和/或钻孔组分横截面的增加以及测量计数率的降低结合使用来确定地层断裂的位置以及在井眼区域中包装材料的存在和百分比填充 。 相对于其他PNC参数变化，测量地层横截面的变化提供了与井眼区域相比，支撑剂在裂缝中的相对指示

    METHODS OF IDENTIFYING HIGH NEUTRON CAPTURE CROSS SECTION DOPED PROPPANT IN INDUCED SUBTERRANEAN FORMATION FRACTURES
    2.
    发明申请
    METHODS OF IDENTIFYING HIGH NEUTRON CAPTURE CROSS SECTION DOPED PROPPANT IN INDUCED SUBTERRANEAN FORMATION FRACTURES 审中-公开
    识别高中子捕获的方法横断面诱导的亚型形成断裂

    公开(公告)号：WO2010120494A1

    公开(公告)日：2010-10-21

    申请号：PCT/US2010/029207

    申请日：2010-03-30

    申请人： CARBO CERAMICS INC. ,  DUENCKEL, Robert ,  SMITH, JR., Harry D. ,  SMITH, Michael P.

    发明人： DUENCKEL, Robert ,  SMITH, JR., Harry D. ,  SMITH, Michael P.

    IPC分类号： G01V5/10

    CPC分类号： G01V5/101 ,  G01V5/107

    摘要： Methods are provided for determining the locations and heights of fractures in a subterranean formation using a neutron-emitting logging tool. Utilizing predetermined relationships (1) between logging tool count rates and associated apparent formation hydrogen index values and (2) between logging tool count rate ratios and associated apparent formation hydrogen index values, the methods detect the presence and heights in the formation of proppant containing high thermal neutron capture cross section material in a manner substantially eliminating proppant determination uncertainty resulting from a prior change in formation hydrogen index values. A second, associated, method employing logging tool count rates and count rate ratios to determine the presence of proppant containing high thermal neutron capture cross section absorbers utilizes a crossplot of count rate versus ratio. Logged intervals containing no proppant will fall on a trend/trendline on the crossplot, whereas logged intervals containing proppant will fall off from this trend/trendline.

    摘要翻译： 提供了使用中子发射测井工具确定地下地层中裂缝的位置和高度的方法。 利用预定的关系（1）记录工具计数率和相关的表观形成氢指数值，以及（2）记录工具计数率和相关的表观形成氢指数值之间，该方法检测含高含量支撑剂形成的存在和高度 热中子捕获截面材料，其方式基本上消除了由于形成氢指数值的先前变化而导致的支撑剂确定不确定性。 使用测井工具计数率和计数速率比率的第二种相关联方法来确定含有高热中子捕获截面吸收剂的支撑剂的存在利用计数速率与比率的交叉图。 不含支撑剂的记录间隔将落在交叉图上的趋势/趋势线上，而含有支撑剂的记录间隔将从该趋势/趋势线脱落。