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    Methods of monitoring water injection in subterranean formations
    2.
    发明授权
    Methods of monitoring water injection in subterranean formations 有权

    公开(公告)号：US12116885B2

    公开(公告)日：2024-10-15

    申请号：US18065518

    申请日：2022-12-13

    申请人： SAUDI ARABIAN OIL COMPANY

    发明人： Abdulrahim Khalid Al Mulhim ,  Ibrahim Mohamed El-Zefzafy

    IPC分类号： E21B47/107 ,  E21B43/25 ,  E21B47/06 ,  G01V1/30

    CPC分类号： E21B47/107 ,  E21B43/25 ,  E21B47/06 ,  G01V1/308

    摘要： A method may include receiving a plurality of signals from a sensor deployed in a subterranean formation and performing a step-rate analysis for the subterranean formation using the plurality of signals. An ideal volumetric flow rate and pressure of water injected into the subterranean formation by a power water injector may be determined from the step-rate analysis. A cumulative volume and pressure of water injected into the subterranean formation may be determined continuously to obtain a plurality of cumulative injected water and pressure data points. A Hall plot analysis may be performed from the plurality of cumulative injected water and pressure data points. A mitigation action may be performed when a deviation from steady state within the Hall plot analysis is beyond a constant factor, wherein the mitigation action reduces the deviation from steady state.

    Removing guided wave noise from recorded acoustic signals
    4.
    发明授权
    Removing guided wave noise from recorded acoustic signals 有权

    公开(公告)号：US11946364B2

    公开(公告)日：2024-04-02

    申请号：US16922513

    申请日：2020-07-07

    申请人： Halliburton Energy Services, Inc.

    发明人： Yao Ge ,  Ruijia Wang ,  Philip William Tracadas ,  Yi Yang Ang ,  Xiang Wu

    IPC分类号： E21B47/107 ,  G01N29/38 ,  G01N29/40 ,  G01N29/42 ,  G01V1/50

    CPC分类号： E21B47/107 ,  G01N29/38 ,  G01N29/40 ,  G01N29/42 ,  G01V1/50

    摘要： A method for removing a guided wave noise in a time-domain may include recording one or more acoustic signals with one or more receivers at a first location, wherein the one or more acoustic signals are raw data. The method may further include determining a slowness range, estimating a downward guided wave noise by stacking the one or more acoustic signals based at least in part on a positive slowness, estimating an upward guided wave noise by stacking the one or more acoustic signals based at least in part on a negative slowness, and identifying a dominant direction of propagation. The method may further include identifying a slowness from a highest stacked amplitude for the dominant direction of propagation, estimating a downward guided wave noise with the slowness, estimating an upward guided wave noise with the slowness, and subtracting the downward guided wave noise and the upward guided wave noise.

    SYSTEM AND METHOD FOR NON-INVASIVE DETECTION AT A WELLSITE
    5.
    发明公开
    SYSTEM AND METHOD FOR NON-INVASIVE DETECTION AT A WELLSITE 审中-公开

    公开(公告)号：US20230383646A1

    公开(公告)日：2023-11-30

    申请号：US18248102

    申请日：2021-10-06

    申请人： Schlumberger Technology Corporation

    发明人： Wai Sum Wilson Yip ,  Courtney Payne ,  Sascha Trummer ,  Sergio Alberto Rondon Fajardo ,  Ryan Richard Leroux

    IPC分类号： E21B47/107 ,  E21B47/07

    CPC分类号： E21B47/107 ,  E21B47/07

    摘要： A technique facilitates monitoring of events related to various well operations. According to an embodiment, the technique provides a non-invasive approach to measuring fluid and solids transport through well surface pipe assemblies. The desired information may be detected and obtained by mounting sensors to the exterior of pipes, thus enabling retrofitting of the sensor system to existing assemblies at a desired time during a given operation. Additionally, the technique may utilize a combination of sensors and systems for measuring fluid and solids transport through well flow path assemblies. The measurements obtained may be used to provide real-time monitoring of surface flow conditions as well as of downhole wellbore conditions and of the status of downhole equipment.

    DOWNHOLE 3-PHASE FLOW MEASUREMENT USING SPEED OF SOUND ABOVE AND BELOW THE BUBBLE-POINT PRESSURE
    6.
    发明公开
    DOWNHOLE 3-PHASE FLOW MEASUREMENT USING SPEED OF SOUND ABOVE AND BELOW THE BUBBLE-POINT PRESSURE 审中-公开

    公开(公告)号：US20230340870A1

    公开(公告)日：2023-10-26

    申请号：US17660753

    申请日：2022-04-26

    申请人： Weatherford Technology Holdings, LLC

    发明人： Omer Haldun UNALMIS

    IPC分类号： E21B47/107 ,  G01F1/66 ,  G01F1/74 ,  G01N33/28

    CPC分类号： E21B47/107 ,  G01F1/666 ,  G01F1/74 ,  G01N33/2823

    摘要： Methods and apparatus for hydrocarbon monitoring are provided. An example method (e.g., performed by a monitoring system) includes receiving one or more first downhole measurements including a first speed of sound (SoS) measurement of a flowing fluid at a first location, wherein a pressure of the flowing fluid at the first location is greater than a bubble-point pressure of the flowing fluid; receiving one or more second downhole measurements including a second SoS measurement of the flowing fluid at a second location, wherein a pressure of the flowing fluid at the second location is less than the bubble-point pressure of the flowing fluid and wherein the flowing fluid is a 3-phase fluid mixture at the second location; and calculating one or more phase flow rates of the 3-phase fluid mixture, based on the first SoS measurement, the second SoS measurement, and a measurement of a bulk velocity of the flowing fluid.

    Acoustic beamforming techniques with simultaneous acoustic velocity estimation
    9.
    发明授权
    Acoustic beamforming techniques with simultaneous acoustic velocity estimation 有权

    公开(公告)号：US11674383B2

    公开(公告)日：2023-06-13

    申请号：US17088386

    申请日：2020-11-03

    申请人： Halliburton Energy Services, Inc.

    发明人： Yadong Wang ,  Yao Ge ,  Xiang Wu

    IPC分类号： E21B47/107 ,  E21B47/117 ,  G01V1/18 ,  G01V1/50

    CPC分类号： E21B47/117 ,  E21B47/107 ,  G01V1/186 ,  G01V1/50

    摘要： A hydrophone array tool as described herein is configured to locate leakages throughout a borehole with improved accuracy using acoustic beamforming techniques with acoustic velocity estimation. An acoustic beamforming processor generates an initial beamforming map and corresponding initial estimated leakage location using acoustic measurements throughout the borehole. The acoustic beamforming processor generates additional beamforming maps at the initial estimated leakage location, each additional beamforming map corresponding to an acoustic velocity within a range of anticipated acoustic velocities. An acoustic velocity estimator determines an acoustic velocity corresponding to a beamforming map with spatial statistics that indicate a most prominent leakage location. The acoustic beamforming processor updates the leakage location according to this beamforming map for improved accuracy.

    Device and method to image flow in oil and gas wells using phased array doppler ultrasound
    10.
    发明授权
    Device and method to image flow in oil and gas wells using phased array doppler ultrasound 有权

    公开(公告)号：US11619125B2

    公开(公告)日：2023-04-04

    申请号：US17389918

    申请日：2021-07-30

    申请人： DarkVision Technologies Inc

    发明人： Osman S. Malik ,  Graham T. Manders ,  Stephen E. Robinson

    IPC分类号： E21B47/107 ,  G01S15/89 ,  G01S15/88 ,  G01F1/663 ,  G01F1/74 ,  E21B47/002 ,  E21B43/11 ,  E21B43/26

    摘要： A device and method for imaging, measuring and identifying multiphase fluid flow in wellbores using phased array Doppler ultrasound. The device includes a radially-configured or ring-shaped ultrasound transducer that when deployed in a well in Doppler mode can measure the velocity of radially flowing fluids in the wellbore and generate a 3D image of radial flow in the wellbore, including flowback into the wellbore after fracturing operations, or flow leaving the wellbore during water injection operations. The ring-shaped ultrasound transducer can also simultaneously operate in a B-mode to generate a B-mode image of the wellbore liner upon which the Doppler image can be overlaid. The device may also include a forward facing ultrasound transducer either instead of or in place of the ring-shaped transducer for obtaining information and images on axial flow in the wellbore in Doppler mode, and the location of phase boundaries and phase locations in B-mode.