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    METHOD AND SYSTEM FOR UNDERGROUND GAS INJECTION
    93.
    发明申请
    METHOD AND SYSTEM FOR UNDERGROUND GAS INJECTION 有权

    公开(公告)号：US20210396109A1

    公开(公告)日：2021-12-23

    申请号：US17287382

    申请日：2019-10-03

    Applicant: IFP Energies nouvelles ,  STORENGY SAS ,  GRAZIELLA GREEN POWER

    Inventor： Marc Paul PERREAUX ,  Martin GAINVILLE ,  Laurent JEANNIN

    IPC: E21B43/16 ,  E21B41/00

    Abstract: The method and the system (100) according to the invention relate to the injection of gas into an underground formation, enhanced by the simultaneous injection of liquid (IL). Mixing of the gas and the liquid can occur at different levels in the well in order to facilitate the flow and to limit the gas pressure necessary for reinjection at the wellhead. Thus, the system (100) and the method require less energy and the associated gas compression equipment is less expensive.
    The invention notably applies to geothermal energy applications, underground gas storage, notably CO2, or to enhanced recovery in petroleum reservoirs.
    FIG. 3a to be published.

    Method for converting heavy hydrocarbon feedstocks with recycling of a deasphalted oil
    96.
    发明授权
    Method for converting heavy hydrocarbon feedstocks with recycling of a deasphalted oil 有权

    公开(公告)号：US11149217B2

    公开(公告)日：2021-10-19

    申请号：US16957078

    申请日：2018-12-07

    Applicant: IFP Energies nouvelles

    Inventor： Joao Marques ,  Jan Verstraete

    IPC: C10G67/04 ,  C10G21/00 ,  C10G45/08 ,  C10G45/16

    Abstract: The invention relates to a process for converting a heavy hydrocarbon feedstock containing a fraction of at least 50% with a boiling point of at least 300° C., and containing sulfur, Conradson carbon, metals, and nitrogen, comprising at least two successive hydroconversion steps, which may be separated by an intermediate separation step, and at least one step of deasphalting a heavy fraction of the effluent resulting from the hydroconversion, with recycling at least one portion of the deasphalted oil (DAO) during the hydroconversion, downstream of the first hydroconversion step. The DAO is either recycled at the outlet thereof from the deasphalter, or after having undergone a fractionation step that produces a heavy fraction of the DAO that then constitutes the portion of the DAO that is recycled. This process makes it possible to simultaneously improve the degree of conversion and the stability of the liquid effluents.

    SYSTEM AND METHOD OF STORING AND RECOVERING ENERGY BY MEANS OF COMPRESSED GAS, COMPRISING A MIXED LAYER OF PRESTRESSED CONCRETE
    99.
    发明申请
    SYSTEM AND METHOD OF STORING AND RECOVERING ENERGY BY MEANS OF COMPRESSED GAS, COMPRISING A MIXED LAYER OF PRESTRESSED CONCRETE 有权

    公开(公告)号：US20210278044A1

    公开(公告)日：2021-09-09

    申请号：US16332461

    申请日：2017-09-01

    Applicant: IFP Energies Nouvelles

    Inventor： Navid SAEEDI

    IPC: F17C1/06 ,  F17C5/06

    Abstract: The invention is a reservoir for the storage of a pressurized fluid such as compressed air. In particular, the reservoir comprises at least one tube formed of an arrangement of concentric layers (C1, C2, C3, C4). This arrangement comprises, working from the inside toward the outside of the tube, an internal layer (C1) formed of concrete, a layer (C2) formed of steel of thickness E, at least one layer (C3) formed by a winding of steel wires (C3″) on a sublayer (C3′) of concrete, and an external layer (C4) which protects the wires against at least one of physical and chemical damage, and in which the wires are subjected to circumferential (hoop) tensile prestress with at least one of the thickness E and the prestress being rated to withstand the pressure of pressurized fluid.
    Application notably to the storage and recovery of energy using compressed air.

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