Flow control valve for permanent magnet ESP

    公开(公告)号:US12129737B1

    公开(公告)日:2024-10-29

    申请号:US18140473

    申请日:2023-04-27

    发明人: Ahmed Fehri

    IPC分类号: E21B43/12 E21B34/14

    CPC分类号: E21B34/14 E21B43/128

    摘要: It is desirable to prevent the unintended generation of electricity by permanent magnet motors in a submersible pumping system used to recover fluids from a wellbore. A pumping system designed to prevent the unintended generation of electricity includes a pump intake that provides a path for the wellbore fluids to enter the pump. The pumping system further includes a flow control valve assembly connected to the pump. The flow control valve assembly has a sliding sleeve and a valve control mechanism that moves the sliding sleeve between open and closed positions on the intake of the pump.

    ESP GAS HANDLER DISCHARGE PRESSURE MEASUREMENT AND MONITORING

    公开(公告)号:US20240352848A1

    公开(公告)日:2024-10-24

    申请号:US18304496

    申请日:2023-04-21

    IPC分类号: E21B47/008 E21B43/12

    CPC分类号: E21B47/008 E21B43/128

    摘要: A system and method for determining the discharge pressure of a gas handler in a well. The system includes an electrical submersible pump connected to a discharge head disposed in the well, a gas handler discharge line configured to connect the discharge head to a sensor, a processor configured to receive data from the sensor and determine the discharge pressure of the gas handler based on the received data, and a display configured to display the discharge pressure of the gas handler. The method includes attaching a discharge head to the gas handler, attaching a gas handler discharge line from the discharge head to a sensor, measuring pressure transferred from the gas handler into the electrical submersible pump, receiving the measurement of the pressure transferred, determining the discharge pressure of the gas handler based on the measurement of the pressure transferred, and displaying the discharge pressure of the gas handler.

    Seam-sealed pothead to motor connection

    公开(公告)号:US12123428B2

    公开(公告)日:2024-10-22

    申请号:US17720144

    申请日:2022-04-13

    摘要: A pumping system configured to recover wellbore fluids from a wellbore includes an electric motor that has a motor head, a pothead receiving bore within the motor head, a motor insulator block within the motor head, and a stator lead within the motor insulator block. The pumping system further includes a motor lead cable and a pothead connector connected between the motor head and the motor lead cable. The pumping system includes a hermetically fused pothead-to-motor connection at an interface between the pothead connector and the motor head that obviates the need for conventional elastomeric seals at the interface between the pothead connector and the motor head.

    REDUCING VIBRATION OF AN ELECTRIC SUBMERSIBLE PUMP

    公开(公告)号:US20240344408A1

    公开(公告)日:2024-10-17

    申请号:US18301658

    申请日:2023-04-17

    IPC分类号: E21B17/10 E21B23/03 E21B43/12

    摘要: An electric submersible pump assembly that has a motor, a pump, and a slip assembly. The pump is driven by the motor to flow production fluid up the wellbore through a wellbore string. The slip assembly is attached to the electric submersible pump assembly and resides downhole of the motor. The slip assembly has a first slip and a second slip. The first slip is coupled to the electric submersible pump assembly at or downhole of the motor. The first slip is flexible and engages, with the second slip set, the wall of the wellbore to dampen a vibration of the motor. The second slip is coupled to the electric submersible pump assembly at or downhole of the motor, and is set on a wall of the wellbore, securing the electric submersible pump assembly to the wall of the wellbore.

    Self-entry exploitation device and method for marine natural gas hydrates

    公开(公告)号:US12098622B2

    公开(公告)日:2024-09-24

    申请号:US17272934

    申请日:2021-01-04

    摘要: A self-entry exploitation device and method for marine natural gas hydrates is provided. The exploitation device includes a self-entry structural body (1), a sand control device (2) and a gas-liquid lifting system. The self-entry structural body (1) is a gravity anchor. The sand control device (2) and the gas-liquid lifting system are mounted on the self-entry structural body (1). At least one cavity (21) is formed between the self-entry structural body (1) and the sand control device (2), and the cavity (21) is communicated with at least one channel. The sand control device (2) allows liquid and gas to pass through to enter the cavity (21) and is able to filter out silt. The gas-liquid lifting system includes at least one lifting power device (31) and has an end connected to the cavity (21) and an end extending out through a pipeline. By adoption of the exploitation device, drilling is not needed, the self-entry structural body (1) can enter a natural gas hydrate reservoir or a free gas layer below the natural gas hydrate reservoir, so that depressurizing exploitation can be realized, an exploitation system can be withdrawn, and the exploitation cost of natural gas hydrates can be greatly reduced.