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    Sensor system for downhole galvanic measurements
    1.
    发明授权
    Sensor system for downhole galvanic measurements 有权

    公开(公告)号：US09983329B2

    公开(公告)日：2018-05-29

    申请号：US15021980

    申请日：2015-06-05

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Burkay Donderici ,  George David Goodman ,  Etienne Samson

    IPC: G01V3/10 ,  G01V3/18 ,  G01V3/28 ,  G01V3/26 ,  E21B47/12

    CPC classification number: G01V3/28 ,  E21B47/123 ,  G01V3/26

    Abstract: A downhole galvanic logging system including a first transmitter electrode configured to convey an exciter current into a formation and a second transmitter electrode configured to receive a return current from the formation. A first transmission line being coupled to the first transmitter electrode and configured to carry the exciter current, and a second transmission line being coupled to the second transmitter electrode and configured to carry the return current. The transmission lines can be arranged in a twisted pattern. A receiver device is positioned between the transmitter electrodes along an axial length of the downhole galvanic logging system. The receiver device can be configured to detect an electrical signal that is proportional to a resistivity of the formation. The second transmitter electrode can be coupled to one end of the receiver device with the second transmission line coupled to the second transmitter electrode through the receiver device.

    Magnetic Induction Sensor with an Electro-Optical Transducer and Related Methods and Systems
    2.
    发明申请
    Magnetic Induction Sensor with an Electro-Optical Transducer and Related Methods and Systems 审中-公开

    公开(公告)号：US20170123096A1

    公开(公告)日：2017-05-04

    申请号：US15312042

    申请日：2014-05-19

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： Glenn A. Wilson ,  Tasneem A. Mandviwala ,  Burkay Donderici ,  Ahmed Fouda ,  Etienne Samson

    IPC: G01V3/34 ,  G01V3/28

    CPC classification number: G01V3/34 ,  G01V3/28

    Abstract: Electromagnetic (EM) measurement systems and methods for a downhole environment are described herein. An example system includes an optical fiber, an EM source to emit an EM field, and a magnetic induction sensor. The magnetic induction sensor comprises a coil and an electro-optical transducer coupled to the coil and the optical fiber. The electro-optical transducer generates a light beam or modulates a source light beam in the optical fiber in accordance with a voltage induced in the coil by the EM field. An example method includes positioning an optical fiber and magnetic induction sensor in the downhole environment, the magnetic induction sensor having a coil and an electro-optical transducer coupled to the coil and the optical fiber. The method also includes emitting an EM field and generating a light beam or modulating a source light beam, by the electro-optical transducer, in the optical fiber in accordance with a voltage induced in the coil by the EM field.

    OPTICAL FIBER FEEDTHROUGH INCORPORATING FIBER BRAGG GRATING
    7.
    发明申请
    OPTICAL FIBER FEEDTHROUGH INCORPORATING FIBER BRAGG GRATING 审中-公开
    光纤通过光纤布拉格光纤

    公开(公告)号：US20160222777A1

    公开(公告)日：2016-08-04

    申请号：US15021719

    申请日：2013-08-09

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Michel LeBlanc ,  Etienne Samson ,  William N. Gibler

    IPC: E21B47/06

    CPC classification number: E21B47/06 ,  E21B47/065

    Abstract: Methods and systems for effectively sealing a fiber optic line to a pressure gauge device are disclosed. A pressure gauge device has an outer body, a reference volume within the outer body and a pressure sensor having a first side and a second side. The first side of the pressure sensor is exposed to a pressure inlet and the second side of the pressure sensor is exposed to the reference volume. A fiber optic line is coupled to the pressure gauge device using a feedthrough device. The fiber optic line comprises a first fiber optic line portion located within the feedthrough device, a second fiber optic line portion located within the reference volume and a third fiber optic line portion located within a cable located outside the pressure gauge device and coupled to the feed through device. The first fiber optic line portion comprises a first Fiber Bragg Grating (“FBG”).

    Abstract translation: 公开了将光纤线有效地密封到压力计装置的方法和系统。 压力计装置具有外体，外体内的参考体积和具有第一侧和第二侧的压力传感器。 压力传感器的第一侧暴露于压力入口，压力传感器的第二侧暴露于参考体积。 光纤线路使用馈通装置耦合到压力计装置。 光纤线路包括位于馈通装置内的第一光纤线路部分，位于参考体积内的第二光纤线路部分和位于位于压力计装置外部并连接到馈电线的电缆内的第三光纤线路部分 通过设备。 第一光纤线路部分包括第一光纤布拉格光栅（“FBG”）。

    Downhole fluid tracking with distributed acoustic sensing
    8.
    发明授权
    Downhole fluid tracking with distributed acoustic sensing 有权
    井下流体跟踪与分布式声学感应

    公开(公告)号：US09388685B2

    公开(公告)日：2016-07-12

    申请号：US13726054

    申请日：2012-12-22

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Kris Ravi ,  Etienne Samson ,  John L. Maida ,  William John Hunter

    IPC: E21B47/10

    CPC classification number: E21B47/101

    Abstract: Various disclosed distributed acoustic sensing (DAS) based systems and methods include embodiments that process the DAS measurements to detect one or more contrasts in acoustic signatures associated with one or more fluids flowing along a tubing string, and determine positions of the one or more contrasts as a function of time. The detected contrasts may be changes in acoustic signatures arising from one or more of: turbulence, frictional noise, acoustic attenuation, acoustic coupling, resonance frequency, resonance damping, and active noise generation by entrained materials. At least some of the contrasts correspond to interfaces between different fluids such as those that might be pumped during a cementing operation. Certain other method embodiments include acquiring DAS measurements along a borehole, processing the measurements to detect one or more acoustic signature contrasts associated with interfaces between different fluids in the borehole, and responsively displaying a position of at least one of said interfaces.

    Abstract translation: 各种公开的基于分布式声学感测（DAS）的系统和方法包括处理DAS测量以检测与沿着管柱流动的一种或多种流体相关联的声学签名中的一个或多个对比度的实施例，并且将一个或多个对比度的位置确定为 时间的功能。 检测到的对比度可能是由以下中的一种或多种引起的声学特征的变化：湍流，摩擦噪声，声衰减，声耦合，共振频率，共振阻尼和夹带材料的主动噪声产生。 至少一些对比度对应于不同流体之间的界面，例如在固井操作期间可能泵送的那些流体之间的界面。 某些其他方法实施例包括沿井眼获取DAS测量值，处理测量值以检测与钻孔中不同流体之间的界面相关联的一个或多个声学特征对比度，以及响应地显示至少一个所述界面的位置。

    Dictionary generation for downhole signal compression
    10.
    发明授权
    Dictionary generation for downhole signal compression 有权

    公开(公告)号：US11480052B2

    公开(公告)日：2022-10-25

    申请号：US16488878

    申请日：2018-11-06

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Jian Li ,  Christopher Michael Jones ,  Etienne Samson ,  Bin Dai ,  Ilker R. Capoglu

    IPC: E21B47/12 ,  G06F16/9035 ,  H03M7/30 ,  G06K9/62

    Abstract: An apparatus includes a processor and a machine-readable medium having program code to cause the apparatus to obtain a first dictionary based on a first training set of signals and determine a first subset of the first training set of signals based on a training reconstruction accuracy threshold and the first dictionary, wherein each atom in the first dictionary includes at least one of a signal pattern and a function representing the signal pattern. The program code also includes code to generate a second dictionary based on a second training set of signals, wherein the second training set of signals includes the first subset of the first training set of signals.

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