Method of using surface modifying treatment agents to treat subterranean formations

    公开(公告)号:US09822621B2

    公开(公告)日:2017-11-21

    申请号:US14491772

    申请日:2014-09-19

    CPC classification number: E21B43/16 C09K8/584 C09K8/60 C09K2208/28 E21B43/26

    Abstract: A well treatment fluid contains a surface modifying treatment agent having an anchor and a hydrophobic tail. The surface modifying treatment agent is an organophosphorus acid derivative. After the well treatment fluid is pumped into a well penetrating the subterranean formation, the anchor binds to the surface of the formation. The subterranean formation is a siliceous formation or a metal oxide-containing subterranean formation. The anchor bonds to a Si atom when the formation is a siliceous formation and to the metal of the metal oxide when the formation is a metal oxide-containing formation. After being bound to the surface of the formation, frictional drag within the well is reduced. This allows for faster recovery of formation fluids. The bonding of the surface modifying treatment agent onto the formation may further be enhanced by first pre-treating the formation with a non-aqueous fluid. By increasing the number of sites for the surface modifying treatment agent to bind onto the surface of the subterranean formation, productivity is improved.

    Composites for use in stimulation and sand control operations
    12.
    发明授权
    Composites for use in stimulation and sand control operations 有权
    用于刺激和防砂操作的复合材料

    公开(公告)号:US09562188B2

    公开(公告)日:2017-02-07

    申请号:US14491944

    申请日:2014-09-19

    Abstract: A composite having a solid particulate and a surface modifying treatment agent on the solid particulate wherein the surface modifying treatment agent has a hydrophobic tail and an anchor for adhering the hydrophobic tail onto the solid particulate. The anchor may be metal and the hydrophobic tail may be an organo-silicon material, a fluorinated hydrocarbon or both an organo-silicon material and a fluorinated hydrocarbon. The composite may be used as a proppant in a hydraulic fracturing operation as well as a sand control particulate in a gravel packing operation. The presence of the surface modifying treatment agent on the surface of the solid particulate reduces the generation of fines and dust as well as the migration of sand during a hydraulic fracturing operation or a sand control operation. The presence of the surface modifying treatment agent on the surface of the solid particulate further enhances the crush resistance of the solid particulate.

    Abstract translation: 一种在固体颗粒上具有固体颗粒和表面改性处理剂的复合材料,其中表面改性处理剂具有疏水性尾部和用于将疏水性尾部粘附到固体颗粒上的锚固件。 锚可以是金属,疏水尾可以是有机硅材料,氟化烃或有机硅材料和氟化烃。 复合材料可用作水力压裂作业中的支撑剂以及砾石包装操作中的防砂颗粒。 固体颗粒表面上的表面改性处理剂的存在在水力压裂操作或防砂操作期间减少细粉和灰尘的产生以及砂的迁移。 表面改性处理剂在固体颗粒表面上的存在进一步增强了固体颗粒的耐压性。

    METHOD OF REDUCING DUST WITH PARTICULATES COATED WITH A POLYCATIONIC POLYMER
    14.
    发明申请
    METHOD OF REDUCING DUST WITH PARTICULATES COATED WITH A POLYCATIONIC POLYMER 有权
    减少具有聚合聚合物的颗粒剂的方法

    公开(公告)号:US20150047848A1

    公开(公告)日:2015-02-19

    申请号:US14525571

    申请日:2014-10-28

    Abstract: A well treatment composite is characterized by particulates wherein at least a portion of the substrate of the particulates is coated with a polycationic polymer. The presence of the polycationic polymer on the surface of the well treatment particulates reduces the generation of dust and fines during a well treatment operation. The polycationic polymer further reduces the amount of dust or fines generated during transport of the well treatment particulates to a remote location as well during the manufacture or processing of well treatment particulates.

    Abstract translation: 一种井下处理复合材料的特征在于颗粒物,其中至少一部分微粒的基质被聚阳离子聚合物涂覆。 在阳极氧化处理颗粒的表面上存在聚阳离子聚合物减少了在井处理操作期间产生粉尘和细粉。 聚阳离子聚合物进一步减少在处理颗粒物料在制造或加工井眼处理颗粒期间将井处理颗粒运输到偏远地点时产生的灰尘或细粒量。

    Folded or crumpled proppants with increased material strength for hydraulic fracturing, gravel packing and frac packing

    公开(公告)号:US10301535B2

    公开(公告)日:2019-05-28

    申请号:US15440900

    申请日:2017-02-23

    Abstract: Relatively low strength and/or relatively low density, but ductile materials may be folded or crumpled and finely divided to give proppants for introduction into hydraulic fractures, where the folded or crumpled structure of the proppants gives relatively increased strength relative to the relatively low strength and/or relatively low density of the materials. Materials not previously considered suitable for proppants may be considered when structure or configured in this manner. Similarly to the case where crumpled paper within a cardboard box keeps it from collapsing, the folded or crumpled material spontaneously develops structural rigidity at relatively low volume fractions without a specific externally imposed design. The folded or crumpled proppants may also be used alone or together with conventional proppants for sand control in gravel packs or frac packs.

    Diagnostic lateral wellbores and methods of use

    公开(公告)号:US10253598B2

    公开(公告)日:2019-04-09

    申请号:US15147449

    申请日:2016-05-05

    Abstract: Improving the knowledge about how hydraulic fracture networks are generated in subsurface shale volumes in unconventional wellbores may be accomplished with various configurations of at least one diagnostic lateral wellbore using at least one diagnostic device disposed in the diagnostic lateral wellbore. By extending diagnostic lateral wellbores from adjacent lateral wellbores and/or separately drilling diagnostic lateral wellbores, and analyzing signals received by diagnostic devices placed in the diagnostic lateral wellbores, knowledge about fracture networks, the parameters that control fracture geometry and reservoir production and how reservoirs react to refracturing techniques may be greatly improved. Additionally, such diagnostic lateral wellbores can provide quicker location of sweet-spot horizons in reservoirs.

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