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    CHEMICAL PLUGS FOR PREVENTING WELLBORE TREATMENT FLUID LOSSES
    1.
    发明申请
    CHEMICAL PLUGS FOR PREVENTING WELLBORE TREATMENT FLUID LOSSES 审中-公开

    公开(公告)号：WO2018204145A1

    公开(公告)日：2018-11-08

    申请号：PCT/US2018/029339

    申请日：2018-04-25

    Applicant: SAUDI ARABIAN OIL COMPANY ,  ARAMCO SERVICES COMPANY

    Inventor： KALGAONKAR, Rajendra Arunkumar ,  WAGLE, Vikrant Bhavanishankar ,  AL-YAMI, Abdullah Saleh Hussain ,  ALMOHSIN, Ayman Mohammed

    IPC: C09K8/42 ,  C09K8/03

    Abstract: A lost-circulation material including a mixture of an aqueous colloidal dispersion and fatty acid. The aqueous colloidal dispersion includes silica nanoparticles and has a pH of at least 8. Combining the colloidal dispersion and the fatty acid initiates gelation of the lost-circulation material when the pH of the lost-circulation material is less than 8 and a temperature of the lost-circulation material is in a range of 5°C to 300°C. Sealing an opening in a portion of a wellbore or a portion of a subterranean formation in which the wellbore is formed may include providing the aqueous colloidal dispersion and the fatty acid to the wellbore, mixing the colloidal dispersion and the fatty acid to yield the lost-circulation material, initiating gelation of the lost-circulation material, and solidifying the lost-circulation material in the wellbore to yield a set gel.

    COATED NANOSAND AS RELATIVE PERMEABILITY MODIFIER
    2.
    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.

    POLYMER GEL WITH NANOCOMPOSITE CROSSLINKER
    4.
    发明申请
    POLYMER GEL WITH NANOCOMPOSITE CROSSLINKER 审中-公开

    公开(公告)号：WO2019075314A1

    公开(公告)日：2019-04-18

    申请号：PCT/US2018/055590

    申请日：2018-10-12

    Applicant: SAUDI ARABIAN OIL COMPANY ,  ARAMCO SERVICES COMPANY

    Inventor： ALMOHSIN, Ayman Mohammed ,  BATAWEEL, Mohammed A. ,  AHMED, Faheem ,  ALSHARAEH, Edreese

    IPC: C09K8/504 ,  C09K8/512

    Abstract: A nanocomposite including a metal oxide and two-dimensional nanosheets. The metal oxid includes at least one of zirconia and titania, and the two-dimensional nanosheets include at least one of reduced graphene oxide and boron nitride. A weight ratio of the metal oxide to the two-dimensional nanosheets is in a range of 2:1 to 19:1, or in a range or 2:1 to 9:1. Making the nanocomposite includes forming a first aqueous dispersion including zirconia nanoparticles and graphene oxide powder, combining a reducing agent with the first aqueous dispersion, irradiating the first aqueous dispersion with microwave radiation, thereby yielding a second aqueous dispersion including zirconia and graphene, and separating the nanocomposite from the second aqueous dispersion, wherein the nanocomposite comprises zirconia and graphene.

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