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    Methods for Measuring Fluid Flow in Subterranean Wells
    1.
    发明申请
    Methods for Measuring Fluid Flow in Subterranean Wells 审中-公开
    测量地下井流体流动的方法

    公开(公告)号：US20140139820A1

    公开(公告)日：2014-05-22

    申请号：US13684040

    申请日：2012-11-21

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Pierre Vigneaux ,  Eve Le Bastard ,  Thomas Barrou

    IPC: G01P5/26

    CPC classification number: G01P5/01

    Abstract: A flow sensing apparatus includes a light source, at least one fiber Bragg grating and at least one optical fiber. The apparatus may be inserted into a flowing fluid stream, and the fiber Bragg grating detects the vortices of the Von Karman street in the wake of the apparatus. The fiber Bragg grating reflects light emitted from the light source, and the spectral nature of the reflected light provides information concerning the fluid velocity in the flowing stream.

    Abstract translation: 流量检测装置包括光源，至少一个光纤布拉格光栅和至少一个光纤。 该装置可以插入流动的流体流中，并且光纤布拉格光栅在装置之后检测到Von Karman街道的涡流。 光纤布拉格光栅反射从光源发射的光，并且反射光的光谱特性提供关于流动流中的流体速度的信息。

    Systems and methods for removing coherent noise in log data
    4.
    发明授权
    Systems and methods for removing coherent noise in log data 有权

    公开(公告)号：US09903973B2

    公开(公告)日：2018-02-27

    申请号：US14566638

    申请日：2014-12-10

    Applicant: Schlumberger Technology Corporation

    Inventor： Gaelle Jannin ,  Andrew J. Hayman ,  Thomas Barrou ,  Sylvain Thierry

    IPC: G01V1/46 ,  G01V1/48

    CPC classification number: G01V1/46 ,  G01V1/48 ,  G01V2210/324

    Abstract: Methods and devices for obtaining well log data with reduced coherent noise are provided. One such method may include placing a downhole tool into a well to obtain a set of unfiltered well log data that includes individual measurements obtained at various azimuthal angles within the well. Some of the unfiltered well log data may represent eccentered well log data obtained while the downhole tool is eccentered in the well. The individual measurements of the eccentered well log data may have delays that vary as a function of the azimuthal angle at which they were obtained. By comparing the measurements of the eccentered well log data, a common pattern independent of delay, representing coherent noise, may be identified. The common pattern may be subtracted from the well log data to produce filtered well log data that is less noisy than the unfiltered well log data.

    AUTONOMOUS WIRELINE OPERATIONS IN OIL GAS FIELDS
    7.
    发明申请
    AUTONOMOUS WIRELINE OPERATIONS IN OIL GAS FIELDS 有权

    公开(公告)号：US20220341307A1

    公开(公告)日：2022-10-27

    申请号：US17753489

    申请日：2020-09-04

    Applicant: Schlumberger Technology Corporation

    Inventor： Ram Sunder Kalyanraman ,  Sebastien Roche ,  Claude Signer ,  Guillaume Borel ,  Thomas Barrou ,  Jean-Luc Le Calvez ,  Bo Ding ,  Vassilis Varveropoulos ,  Mikhail Lemarenko ,  Josselin Kherroubi

    IPC: E21B44/00 ,  E21B47/005

    Abstract: A system for wireline service planning and advising includes a receiver, one or more computing system processors, and a transmitter. The receiver is configured to receive, from a user of the system, an objective parameter for interpreting a state of a well barrier. The one or more computing system processors is in communication with the receiver and configured to generate a plurality of candidate services based on the objective parameter and a model of the well barrier, each candidate service specifying sensor data to be acquired using wireline tools, select at least one wireline service from the wireline candidate services based on a selection logic or input by the user, and generate an execution plan specifying operational parameters of the selected wireline service. The transmitter is in communication with the one or more computing system processors and configured to transmit the execution plan to execute the selected wireline service at a wellsite.

    MONITORING A WELL BARRIER
    8.
    发明申请
    MONITORING A WELL BARRIER 有权

    公开(公告)号：US20220333477A1

    公开(公告)日：2022-10-20

    申请号：US17753488

    申请日：2020-09-04

    Applicant: Schlumberger Technology Corporation

    Inventor： Ram Sunder Kalyanraman ,  Sebastien Roche ,  Claude Signer ,  Guillaume Borel ,  Thomas Barrou ,  Jean-Luc Le Calvez ,  Bo Ding ,  Vassilis Varveropoulos

    IPC: E21B47/005 ,  E21B44/00

    Abstract: A system for wireline service planning and advising includes a receiver, one or more computing system processors, and a transmitter. The receiver is configured to receive, from a user of the system, an objective parameter for interpreting a state of a well barrier. The one or more computing system processors is in communication with the receiver and configured to generate a plurality of candidate services based on the objective parameter and a model of the well barrier, each candidate service specifying sensor data to be acquired using wireline tools, select at least one wireline service from the wireline candidate services based on a selection logic or input by the user, and generate an execution plan specifying operational parameters of the selected wireline service. The transmitter is in communication with the one or more computing system processors and configured to transmit the execution plan to execute the selected wireline service at a wellsite.

    COHERENT NOISE ESTIMATION AND REDUCTION FOR ACOUSTIC DOWNHOLE MEASUREMENTS
    9.
    发明申请
    COHERENT NOISE ESTIMATION AND REDUCTION FOR ACOUSTIC DOWNHOLE MEASUREMENTS 审中-公开

    公开(公告)号：US20170168183A1

    公开(公告)日：2017-06-15

    申请号：US15337353

    申请日：2016-10-28

    Applicant: Schlumberger Technology Corporation

    Inventor： Andrew John Hayman ,  Thomas Barrou

    IPC: G01V1/48

    CPC classification number: G01V1/48 ,  G01V2210/3246 ,  G01V2210/34

    Abstract: A system includes an acoustic logging tool including a transducer configured to: emit a first acoustic pulse in a first direction toward a first acoustic surface; measure a first acoustic signal, wherein the first acoustic signal includes a coherent noise component and a first echo component, wherein the first echo component is due at least in part to an interaction of the first acoustic pulse with the first acoustic surface; emit a second acoustic pulse in a second direction, wherein the second direction is at least partly directed away from the first acoustic surface; and measure a second acoustic signal, wherein the second acoustic signal includes substantially only the coherent noise component. The system also includes a data processing system that includes a processor configured to remove the measurement of the second acoustic signal from the measurement of the first acoustic signal to reduce coherent noise.

    Coherent noise estimation and reduction for acoustic downhole measurements
    10.
    发明授权
    Coherent noise estimation and reduction for acoustic downhole measurements 有权

    公开(公告)号：US10416329B2

    公开(公告)日：2019-09-17

    申请号：US15337353

    申请日：2016-10-28

    Applicant: Schlumberger Technology Corporation

    Inventor： Andrew John Hayman ,  Thomas Barrou

    IPC: G01V1/48

    Abstract: A system includes an acoustic logging tool including a transducer configured to: emit a first acoustic pulse in a first direction toward a first acoustic surface; measure a first acoustic signal, wherein the first acoustic signal includes a coherent noise component and a first echo component, wherein the first echo component is due at least in part to an interaction of the first acoustic pulse with the first acoustic surface; emit a second acoustic pulse in a second direction, wherein the second direction is at least partly directed away from the first acoustic surface; and measure a second acoustic signal, wherein the second acoustic signal includes substantially only the coherent noise component. The system also includes a data processing system that includes a processor configured to remove the measurement of the second acoustic signal from the measurement of the first acoustic signal to reduce coherent noise.

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