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    Stimulating hydrocarbon reservoirs
    1.
    发明授权
    Stimulating hydrocarbon reservoirs 有权

    公开(公告)号：US12276185B2

    公开(公告)日：2025-04-15

    申请号：US18416517

    申请日：2024-01-18

    Applicant: Saudi Arabian Oil Company

    Inventor： Katherine Leigh Hull ,  Amy J. Cairns ,  Rajesh Kumar Saini

    IPC: E21B43/16 ,  E21B43/25

    Abstract: Techniques for treating a hydrocarbon reservoir include delivering a composition to the hydrocarbon reservoir. The composition includes at least one acid, and liquid or supercritical carbon dioxide (CO2). The method further includes exposing the delivered composition to water to activate the composition; and treating a rock formation of the hydrocarbon reservoir with the activated composition.

    SWITCHABLE POLYMERS THAT REDUCE WATER PRODUCTION IN A HYDROCARBON-PRODUCING WELL
    5.
    发明公开
    SWITCHABLE POLYMERS THAT REDUCE WATER PRODUCTION IN A HYDROCARBON-PRODUCING WELL 审中-公开

    公开(公告)号：US20240002717A1

    公开(公告)日：2024-01-04

    申请号：US17852468

    申请日：2022-06-29

    Applicant: Saudi Arabian Oil Company

    Inventor： Rajesh Kumar Saini ,  Amy J. Cairns

    IPC: C09K8/514 ,  C09K8/516

    CPC classification number: C09K8/514 ,  C09K8/516

    Abstract: Systems and methods for selectively reducing water production in a well. The interior of the well casing is in fluid communication with a subterranean formation with a hydrocarbon-producing zone and a water-producing zone. The subterranean formation has a switchable polymer in contact with at least one of the hydrocarbon-producing zone and the water-producing zone. The switchable nature of the polymer enables a hydrophobic state and a hydrophilic state and fluid communication between the water-producing zone and the interior of the well casing is greater when the polymer is in its hydrophilic state than when the polymer is in its hydrophobic state. In its hydrophilic state, more of the polymer will invade the water-producing zone but the plugging action will not take place until it is switched to the hydrophobic state.

    Efficient stimulation of formation using micro-proppants
    7.
    发明授权
    Efficient stimulation of formation using micro-proppants 有权

    公开(公告)号：US11629284B1

    公开(公告)日：2023-04-18

    申请号：US17553889

    申请日：2021-12-17

    Applicant: Saudi Arabian Oil Company

    Inventor： Rajesh Kumar Saini ,  Mohammad H. Haque ,  Jose I. Rueda ,  Almaz M. Sadykov

    IPC: E21B43/267 ,  C09K8/80 ,  C09K8/62

    Abstract: A method of stimulating petroleum production includes introducing a fracturing fluid into a petroleum formation, thereby creating at least one fracture to stimulate the petroleum production. The fracturing fluid is introduced into the petroleum formation at a pressure above the breakdown pressure of the formation. The fracturing fluid includes a plurality of proppants where from 1 to 50 wt. % of the plurality of proppants includes micro proppants having a particle size ranging from 0.5 to 150 μm, and from 50 to 99 wt. % of the plurality of proppants includes macro proppants having a particle size greater than 100 mesh.

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