METHODS AND COMPOSITIONS FOR USE OF PROPPANT SURFACE CHEMISTRY TO PREVENT EMBEDMENT OR FLOWBACK OF PROPPANT PARTICULATES

    公开(公告)号:WO2018148160A1

    公开(公告)日:2018-08-16

    申请号:PCT/US2018/016949

    申请日:2018-02-06

    IPC分类号: E21B43/267

    摘要: According to several exemplary embodiments of the present disclosure, a proppant composition is provided that includes a plurality of unconsolidated particulates having a resin coating on the surface of the particulates, such that chemically active amine sites remain on the surface of the proppant particulates. The proppant composition can remain unconsolidated under storage conditions, inside a wellbore, and inside a subterranean fracture in the absence of an activator. For example, the proppant composition can remain unconsolidated in a gravel pack region or frac pack region in a wellbore in the absence of an activator. According to several exemplary embodiments of the present invention, the proppant composition remains unconsolidated under storage conditions of temperatures of up to 150F, up to 100F, or up to 50F and atmospheric pressure from about one month to about eighteen months.

    ELECTRICALLY-CONDUCTIVE PROPPANT AND METHODS FOR MAKING AND USING SAME

    公开(公告)号:WO2016100135A3

    公开(公告)日:2016-06-23

    申请号:PCT/US2015/065354

    申请日:2015-12-11

    IPC分类号: C09K8/80

    摘要: Electrically-conductive sintered, substantially round and spherical particles and methods for producing such electrically-conductive sintered, substantially round and spherical particles from an alumina-containing raw material. Methods for using such electrically-conductive sintered, substantially round and spherical particles in hydraulic fracturing operations. A proppant pack comprising: a plurality of particles, each said particle, comprising a substantially uniform coating of an electrically-conductive metal having a thickness of at least 10 nm formed on the outer surface of each said particle, wherein each particle has a specific gravity of less than 4 and a size of about 80 mesh to about 10 mesh, wherein the pack has an electrical conductivity of at least about 5 S/m, and wherein increasing a load on the pack by a factor of 2 increases the electrical conductivity of the pack by at least 50%.

    COMPOSITIONS AND METHODS FOR USE OF PROPPANT SURFACE CHEMISTRY TO IMPROVE PROPPANT CONSOLIDATION AND FLOWBACK CONTROL
    4.
    发明申请
    COMPOSITIONS AND METHODS FOR USE OF PROPPANT SURFACE CHEMISTRY TO IMPROVE PROPPANT CONSOLIDATION AND FLOWBACK CONTROL 审中-公开
    使用特殊表面化学物质的组合物和方法,以改善特别合并和流动控制

    公开(公告)号:WO2014176338A3

    公开(公告)日:2015-10-29

    申请号:PCT/US2014035149

    申请日:2014-04-23

    IPC分类号: C09K8/80

    摘要: The present invention relates to methods for hydraulically fracturing a subterranean formation to improve the production rates and ultimate recovery by contacting unconsolidated resin-coated proppant particulates residing in a propped fracture with a reactive crosslinker in order to form a consolidated proppant pack. The present invention also relates to methods for use in water injection wells to consolidate the resin-coated proppant particulates in a gravel packed or frac packed region of a wellbore.

    摘要翻译: 本发明涉及通过将驻留在支撑裂缝中的未固化树脂涂覆的支撑剂颗粒与反应性交联剂接触以形成固结的支撑剂组合物来水压破碎地层以提高生产率和最终回收的方法。 本发明还涉及在注水井中使用的方法,以将在树脂涂覆的支撑剂颗粒固结在井筒的砾石填充或压裂填充区域中。

    PNC TOOLS USED TO LOCATE PROPPANT NEAR A BOREHOLE
    5.
    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

    IPC分类号: E21B43/267 G01V5/10

    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

    LOW RESIN DEMAND FOUNDRY MEDIA
    6.
    发明申请
    LOW RESIN DEMAND FOUNDRY MEDIA 审中-公开
    低树脂需求基金会媒体

    公开(公告)号:WO2008069815A1

    公开(公告)日:2008-06-12

    申请号:PCT/US2006/061645

    申请日:2006-12-06

    IPC分类号: C04B35/64 E21B27/00

    摘要: Foundry media having a low surface porosity and methods for producing the media are disclosed. One method includes minimizing a moisture content of the media prior to sintering the media, which minimized moisture content minimized the surface porosity of the sintered media. The media can be coated with resin, and a mold made therefrom. The media requires less resin than conventional media because of the low porosity, and stronger molds can be made from the media.

    摘要翻译: 公开了具有低表面孔隙率的铸造介质和用于制备介质的方法。 一种方法包括在烧结介质之前使介质的水分含量最小化,这最小化水分含量使烧结介质的表面孔隙度最小化。 介质可以涂覆树脂和由其制成的模具。 由于孔隙率低,介质需要比传统介质少的树脂,并且可以从介质制造更强的模具。

    MATERIAL HAVING A CONTROLLED MICROSTRUCTURE, CORE-SHELL MACROSTRUCTURE, AND METHOD FOR ITS FABRICATION
    7.
    发明申请
    MATERIAL HAVING A CONTROLLED MICROSTRUCTURE, CORE-SHELL MACROSTRUCTURE, AND METHOD FOR ITS FABRICATION 审中-公开
    具有控制微结构,核心结构的材料及其制造方法

    公开(公告)号:WO2008008828A3

    公开(公告)日:2008-04-10

    申请号:PCT/US2007073247

    申请日:2007-07-11

    IPC分类号: B22F3/12

    摘要: Disclosed is a method for making a material having a controlled microstructure, the method including providing particles of a ceramic mineral material, the particles having a metal oxide dopant therein. The particles of the ceramic mineral material are consolidated into larger aggregates of a size relevant to the desired application using standard industrial mixing and pelletizing technology. The aggregates are heated under reducing conditions so that at least part of the dopant is reduced to form a transient, metastable liquid phase among the particles. The liquid phase includes at least part of the reduced dopant and promotes sintering of the particles and forms islands of reduced metal within the material and on the surface of the aggregates. Following heating of the aggregates under reducing conditions, the aggregates are heated under oxidizing conditions such that the islands of reduced metal are oxidized and/or go into solid solution within the particles, thereby creating voids within and form a shell thereon the particles.

    摘要翻译: 公开了一种制备具有可控微结构的材料的方法,该方法包括提供陶瓷矿物材料的颗粒,其中具有金属氧化物掺杂剂的颗粒。 使用标准工业混合和造粒技术将陶瓷矿物材料的颗粒固结成与所需应用相关尺寸的较大聚集体。 聚集体在还原条件下加热,使得至少部分掺杂剂被还原以在颗粒之间形成瞬时的亚稳态液相。 液相包括至少部分还原的掺杂剂并且促进颗粒的烧结并且在材料内和聚集体的表面上形成还原金属的岛。 在还原条件下加热聚集体后,在氧化条件下加热聚集体,使得还原金属的岛被氧化和/或在颗粒内进入固溶体,由此在其上形成空隙并在其上形成壳。