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    UTILIZING HIGH PRESSURE SUBSEA RESERVOIR ENERGY TO SUPPORT LOW-PRESSURE SUBSEA PRODUCTION WELLS
    2.
    发明申请
    UTILIZING HIGH PRESSURE SUBSEA RESERVOIR ENERGY TO SUPPORT LOW-PRESSURE SUBSEA PRODUCTION WELLS 有权

    公开(公告)号：US20250163780A1

    公开(公告)日：2025-05-22

    申请号：US18835105

    申请日：2022-02-02

    Applicant: Chevron U.S.A. Inc.

    Inventor： Nikhil Dayanand

    IPC: E21B43/017 ,  E21B47/06 ,  F01D15/08 ,  F16K27/00

    Abstract: A system for utilizing high pressure subsea reservoir energy to support low-pressure subsea production wells can include a high-pressure subsea well in production, a first subsea piping that receives a high-pressure fluid of the high-pressure subsea well, a low-pressure subsea well in production, and a second subsea piping that receives a low-pressure fluid of the low-pressure subsea well. The system can also include a subsea regenerative turbine that receives the high-pressure fluid of the high-pressure subsea well from the first subsea piping. The system can further include a subsea pump assembly that operates using energy generated by the subsea regenerative turbine, where the subsea pump assembly helps move the low-pressure fluid of the low-pressure subsea well through the second subsea piping.

    FLUIDIZED BED REACTOR SYSTEM FOR CATALYTIC CRACKING OF LIGHT HYDROCARBONS
    3.
    发明申请
    FLUIDIZED BED REACTOR SYSTEM FOR CATALYTIC CRACKING OF LIGHT HYDROCARBONS 有权

    公开(公告)号：US20250163334A1

    公开(公告)日：2025-05-22

    申请号：US18826721

    申请日：2024-09-06

    Applicant: Chevron U.S.A. Inc.

    Inventor： Huping Luo ,  Xiaoying Ouyang ,  Christopher Declan Lane

    IPC: C10G11/18 ,  B01J8/38 ,  B01J38/30

    Abstract: A fluidized bed reactor system including a fluidized bed reactor configured to receive a heated light hydrocarbon feed stream flowing upwards and a heated regenerated catalyst at a temperature sufficient to crack the heated light hydrocarbon feed stream to produce a product effluent stream containing hydrogen and spent catalyst having coke deposits, a catalyst regeneration unit operatively connected to a bottom portion of the fluidized bed reactor, the catalyst regeneration unit being configured to receive the spent catalyst flowing downwards and combust the coke deposits to produce the heated regenerated catalyst and a heated gas effluent for generating the heated light hydrocarbon feed stream, and a riser externally attached to the fluidized bed reactor and the catalyst regeneration unit, the riser being configured to receive the heated regenerated catalyst and a gas-based stream to flow the heated regenerated catalyst upwards to the fluidized bed reactor.

    Process for removing chloride from lipid feedstocks using rejuvenated catalyst
    4.
    发明授权
    Process for removing chloride from lipid feedstocks using rejuvenated catalyst 有权

    公开(公告)号：US12286602B2

    公开(公告)日：2025-04-29

    申请号：US18433789

    申请日：2024-02-06

    Applicant: Chevron U.S.A. Inc.

    Inventor： Sven Ivar Hommeltoft

    IPC: C11B3/02 ,  B01J21/04 ,  B01J23/02 ,  B01J23/92 ,  B01J38/48 ,  C11B3/06 ,  C11C1/08 ,  C11C3/12

    Abstract: A process involves sequentially treating a plurality of lipid feedstocks comprising a set of lipid feedstocks each having a chloride content of at least about 2 ppm with a metal oxide catalyst on an oxide support under first treating conditions to produce respective treated streams of the set of lipid feedstocks having a chloride content less than 1 ppm until a given one of the respective treated streams has a chloride content greater than 1 ppm and the metal oxide catalyst is converted to a spent metal oxide catalyst, converting the spent metal oxide catalyst to a rejuvenated metal oxide catalyst, and treating one or more additional lipid feedstocks each having a chloride content of at least about 2 ppm with the rejuvenated metal oxide catalyst under second treating conditions to produce one or more respective treated streams each having a chloride content less than 1 ppm.

    WELLBORE DEPOSITION MONITORING TOOL
    7.
    发明申请
    WELLBORE DEPOSITION MONITORING TOOL 有权

    公开(公告)号：US20250101856A1

    公开(公告)日：2025-03-27

    申请号：US18726101

    申请日：2022-02-02

    Applicant: Chevron U.S.A. Inc.

    Inventor： Joseph E. Patterson ,  Ramesh Anant Kini

    IPC: E21B47/00 ,  E21B47/10

    Abstract: A flow rate in a wellbore and a measured frictional pressure drop in the wellbore are used to determine a measured friction loss factor for the wellbore. The flow rate in the wellbore and an ideal frictional pressure drop in the wellbore are used to determine an ideal friction loss factor for the wellbore. A ratio of the measured friction loss factor and the ideal friction loss factor is used to monitor deposit buildup in the wellbore

    METHODS AND SYSTEMS FOR UTILIZING CARBON DIOXIDE IN FLUE GAS
    9.
    发明申请
    METHODS AND SYSTEMS FOR UTILIZING CARBON DIOXIDE IN FLUE GAS 有权

    公开(公告)号：US20250073695A1

    公开(公告)日：2025-03-06

    申请号：US18242703

    申请日：2023-09-06

    Applicant: Chevron U.S.A. Inc.

    Inventor： Lin Li ,  Tengfei Liu

    IPC: B01J38/12 ,  B01D53/18 ,  C25B1/02 ,  C25B1/23

    Abstract: A method includes combusting a fuel stream in a combustion unit in the presence of a first oxygen enriched carbon dioxide stream received from an anode of an electrolyzer to generate a hot flue gas stream comprising carbon dioxide, steam, unconsumed oxygen, NOx and SOx, cooling the hot flue gas stream in a heat exchanger by supplying a water stream to the heat exchanger as a heat transfer medium to generate a cooled flue gas stream effluent, processing the cooled flue gas stream effluent in one or more separation units to generate a carbon dioxide rich gas stream and a carbon dioxide lean gas stream, and passing the carbon dioxide rich gas stream to the anode of the electrolyzer to generate a second oxygen enriched carbon dioxide stream for sending to the combustion unit.

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