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    COATED PROPPANTS AND METHODS OF MAKING AND USE THEREOF
    3.
    发明申请
    COATED PROPPANTS AND METHODS OF MAKING AND USE THEREOF 审中-公开

    公开(公告)号：WO2023014484A1

    公开(公告)日：2023-02-09

    申请号：PCT/US2022/037240

    申请日：2022-07-15

    Applicant: SAUDI ARABIAN OIL COMPANY ,  ALFAISAL UNIVERSITY ,  ARAMCO SERVICES COMPANY

    Inventor： LI, Wengang ,  ALSHARAEH, Edreese ,  KRISHNAN, Mohan Raj

    IPC: C09K8/80 ,  E21B47/11

    Abstract: Coated proppants include a proppant particle, a surface copolymer layer surrounding the proppant particle, and a resin layer surrounding the surface copolymer layer. The surface copolymer layer includes a copolymer of at least two monomers chosen from styrene, methyl methacrylate, ethylene, propylene, butylene, imides, urethanes, sulfones, carbonates, and acrylamides, where the copolymer is crosslinked by divinyl benzene. The resin layer includes a cured resin. Methods of preparing the coated proppants include preparing a first mixture including at least one polymerizable material, an initiator, and a crosslinker including divinyl benzene; contacting the first mixture to a proppant particle to form a polymerization mixture; heating the polymerization mixture to cure the polymerizable material and form a polymer-coated particulate; preparing a second mixture including the polymer-coated substrate, an uncured resin, and a solvent; and adding a curing agent to the second mixture to cure the uncured resin and form the coated proppant.

    COATED NANOSAND AS RELATIVE PERMEABILITY MODIFIER
    4.
    发明申请
    COATED NANOSAND AS RELATIVE PERMEABILITY MODIFIER 审中-公开

    公开(公告)号：WO2022178262A1

    公开(公告)日：2022-08-25

    申请号：PCT/US2022/016996

    申请日：2022-02-18

    Applicant: SAUDI ARABIAN OIL COMPANY ,  ARAMCO SERVICES COMPANY

    Inventor： ALMOHSIN, Ayman Mohammed ,  ALSHARAEH, Edreese ,  KRISHNAN, Mohan Raj ,  ALGHAZALI, Mohieddin Attig Ali

    IPC: C09K8/504 ,  C09K8/512 ,  C09K8/516

    Abstract: Polyacrylamide (PAM)-coated nanosand that may be a relative permeability modifier (RPM) and that is applied to treat a wellbore in a subterranean formation. The treatment may be for excess water production. The PAM-coated nanosand is PAM-hydrogel-coated nanosand. The PAM-coated nanosand os nanosand coated with PAM hydrogel. The PAM hydrogel includes crosslinked PAM in water. Application of the PAM-coated nanosand may reduce water production from the subterranean formation into the wellbore. The PAM hydrogel of the PAM-coated nanosand may expand in a water zone of the subterranean formation to restrict water flow into the wellbore. The PAM hydrogel of the PAM-coated nanosand may contract in an oil zone of the subterranean formation so not to significantly restrict crude oil flow into the wellbore.

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