METHOD FOR DETECTION OF SCALE ON ESP USING DIFFERENTIAL TEMPERATURE MEASUREMENT

    公开(公告)号:US20240280012A1

    公开(公告)日:2024-08-22

    申请号:US18444677

    申请日:2024-02-17

    摘要: A method for operating an electric submersible pumping system includes the steps of operating the electric submersible pumping system until it reaches a steady state operating condition, obtaining a first internal motor temperature measurement, obtaining a first external motor temperature measurement, and determining a first temperature differential based on the difference between the first internal motor temperature measurement and the first external motor temperature measurement. The method continues with the steps of obtaining a second internal motor temperature measurement, obtaining a second external motor temperature measurement, and determining a second temperature differential based on the difference between the second internal motor temperature measurement and the second external motor temperature measurement. Next the method includes the steps of comparing the second temperature differential to the first temperature differential, and indicating a probability of scale accumulation on the electric motor if the second temperature differential is greater than the first temperature differential.

    Self-powered downhole injection systems and methods for operating the same

    公开(公告)号:US12055020B2

    公开(公告)日:2024-08-06

    申请号:US18469277

    申请日:2023-09-18

    发明人: Tao Chen Qiwei Wang

    摘要: A downhole injection system in selective communication with a wellhead assembly and a wellbore, the downhole injection system including a pumping chamber in selective communication with the wellhead assembly, the pumping chamber defining a wellhead pressure portion defining a wellhead pressure inlet in selective communication with the wellhead assembly and a wellhead pressure outlet in selective communication with the wellhead assembly, where the wellhead pressure portion is maintained at a wellhead pressure, and a chemical portion in selective communication with the wellbore, and a movable plate positioned within the pumping chamber, where the chemical portion is separated from the wellhead pressure portion by the movable plate.

    Hybrid impression block
    5.
    发明授权

    公开(公告)号:US12024994B1

    公开(公告)日:2024-07-02

    申请号:US18301373

    申请日:2023-04-17

    摘要: An apparatus for evaluating an obstruction in a conduit of a tubular includes a first cylindrical rod connected to a deployment device configured to deploy the first cylindrical rod into the conduit of the tubular; a second cylindrical rod connected to the first cylindrical rod; an outer sleeve movable between a first position and a second position; and an impression block connected to the second cylindrical rod. The impression block is configured to obtain an impression of the obstruction. The second cylindrical rod has a diameter larger than a diameter of the first cylindrical rod, when the outer sleeve is concentrically disposed around the second cylindrical rod in the first position and concentrically disposed around the first cylindrical rod after an interaction between the outer sleeve and the obstruction. The outer sleeve includes a plurality of panels connected to one another by a plurality of stretchable elements.

    Well bore fluid sensor, system, and method

    公开(公告)号:US12018970B2

    公开(公告)日:2024-06-25

    申请号:US17733179

    申请日:2022-04-29

    摘要: A well bore fluid sensor is provided that includes an inner plate, a plurality of outer plates, first and second cable fixtures, and an electronics module. The inner plate defines a sensor interior cavity. The outer plates include a first outer plate and a second outer plate. The electronics module includes a resonant circuit and a power supply and is in signal communication with the inner plate and at least one of the first and second cable fixtures. The inner plate, the first and second outer plates, and the first and second cable fixtures are coupled together to form a unitary structure. The inner plate is electrically insulated from the first and second outer plates, the first and second cable fixtures. The first and second outer plates are electrically insulated from one another. The inner plate is capacitively coupled to the first and second outer plates.

    METHOD FOR OPENING A COMPLETION ISOLATION VALVE WITH E-LINE POWERED SHIFTING TOOL

    公开(公告)号:US20240183248A1

    公开(公告)日:2024-06-06

    申请号:US18075839

    申请日:2022-12-06

    IPC分类号: E21B34/14 E21B23/01 E21B47/00

    CPC分类号: E21B34/14 E21B23/01 E21B47/00

    摘要: A downhole shifter tool assembly configured to operate a downhole tool. The shifter tool assembly comprises a anchor tool, an extension tool, a shifting key, and a standoff spacer. The standoff spacer is configured to locate the shifter tool assembly at a reference position by contacting an isolation member on the downhole tool. An anchoring mechanism within the anchor tool can anchor the shifter tool assembly in the reference position. An extend-retract mechanism within the extension tool can extend move the shifting key on a shifting tool into engagement with a shifting profile on the downhole tool and move the shifting profile to a second position. The downhole tool can be operated by the shifting key moving the shifting profile from an initial position to the second position.

    Arrangement, drill rig and method therein for detection of water in material flow

    公开(公告)号:US11982180B2

    公开(公告)日:2024-05-14

    申请号:US17913231

    申请日:2021-03-31

    摘要: Arrangement for detecting water in a material flow during drilling, wherein the arrangement includes a control unit, a data acquisition unit and a sensor, wherein the sensor includes at least two probes, wherein the at least two probes are to be arranged in contact with the material flow and are connected to a programmable voltage source and a programmable voltage receiver. The arrangement is configured to measure a ratio between a received voltage waveform and an applied voltage waveform for a set of pre-determined frequencies; determine a complex impedance between the at least two probes for each of the pre-determined frequencies, based on the measured ratio; and determine a set of time mean values of the determined complex impedance for each of the pre-determined frequencies, using a time window.