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    Miniaturized NMR tool electronics
    2.
    发明授权
    Miniaturized NMR tool electronics 有权

    公开(公告)号：US11506810B2

    公开(公告)日：2022-11-22

    申请号：US17419014

    申请日：2019-12-23

    Applicant: Schlumberger Technology Corporation

    Inventor： Yi-Qiao Song ,  Yiqiao Tang ,  Shin Utsuzawa ,  Tancredi Botto ,  Irfan Bulu ,  Martin Hurlimann

    IPC: G01V3/32 ,  G01R33/34 ,  G01R33/36

    Abstract: An NMR well logging tool is provided that includes a sensor and associated electronic circuitry. The sensor includes an array of RF antenna elements. The electronic circuitry includes at least one low-power integrated circuit and a plurality of high-power modules corresponding the RF antenna elements of the array. Each high-power module is coupled to a corresponding RF antenna element of the array and includes an RF amplifier that is configured to amplify RF pulses generated by the at least one low-power integrated circuit and supplied thereto for transmission by the corresponding antenna element. In embodiments, the RF amplifier of each high-power module can include an H-bridge circuit or other suitable RF amplifier.

    INTELLIGENT DATA ACQUISITION FOR WIRELINE LOGGING
    3.
    发明申请
    INTELLIGENT DATA ACQUISITION FOR WIRELINE LOGGING 有权

    公开(公告)号：US20220365241A1

    公开(公告)日：2022-11-17

    申请号：US17754627

    申请日：2020-10-08

    Applicant: Schlumberger Technology Corporation

    Inventor： Yi-Qiao Song ,  Yiqiao Tang ,  Mehdi Hizem ,  Lukasz Zielinski ,  Michel Claverie ,  ZhanGuo Shi

    IPC: G01V3/32 ,  G01V3/34

    Abstract: Methods and systems are provided for optimizing well-logging using an optimized wait time determined by analysis nuclear magnetic resonance data to achieve faster and better quality borehole evaluation. The method comprises performing a nuclear magnetic resonance pre-log testing; identifying a wait time for a portion of a signal from the pre-log testing with a long T1 and T2, value at each depth of the pre-log testing, wherein T1 is defined as a longitudinal relaxation time and T2 is a transverse relaxation time ascertained from the nuclear magnetic resonance prelog testing; and constructing a logging program with a logging program wait time being consistent with the wait time identified.

    MINIATURIZED NMR TOOL ELECTRONICS
    4.
    发明申请
    MINIATURIZED NMR TOOL ELECTRONICS 有权

    公开(公告)号：US20220120931A1

    公开(公告)日：2022-04-21

    申请号：US17419014

    申请日：2019-12-23

    Applicant: Schlumberger Technology Corporation

    Inventor： Yi-Qiao Song ,  Yiqiao Tang ,  Shin Utsuzawa ,  Tancredi Botto ,  Irfan Bulu ,  Martin Hurlimann

    IPC: G01V3/32 ,  G01R33/34 ,  G01R33/36

    Abstract: An NMR well logging tool is provided that includes a sensor and associated electronic circuitry. The sensor includes an array of RF antenna elements. The electronic circuitry includes at least one low-power integrated circuit and a plurality of high-power modules corresponding the RF antenna elements of the array. Each high-power module is coupled to a corresponding RF antenna element of the array and includes an RF amplifier that is configured to amplify RF pulses generated by the at least one low-power integrated circuit and supplied thereto for transmission by the corresponding antenna element. In embodiments, the RF amplifier of each high-power module can include an H-bridge circuit or other suitable RF amplifier.

    NMR PROBE AND METHODS OF USE
    5.
    发明申请
    NMR PROBE AND METHODS OF USE 审中-公开
    NMR探针和使用方法

    公开(公告)号：US20150253454A1

    公开(公告)日：2015-09-10

    申请号：US14431843

    申请日：2013-09-27

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Yi-Qiao Song ,  Soumyajit Mandal ,  Yiqiao Tang ,  Martin D. Hurlimann ,  Jeffrey Paulsen

    IPC: G01V3/32 ,  E21B49/08

    CPC classification number: G01V3/32 ,  E21B49/088 ,  G01N24/081 ,  G01N24/10 ,  G01R33/307 ,  G01R33/345 ,  G01R33/383 ,  G01R33/448 ,  G01R33/4608 ,  G01R33/4633

    Abstract: A coaxial nuclear magnetic resonance (NMR) probe and related methods are described herein. The coaxial NMR probe includes a housing with a fluid inlet, a fluid outlet, a longitudinal axis, and an interior volume. The housing contains a fluid sample that is analyzed by the probe. The coaxial NMR probe also includes an elongated conductor disposed along the longitudinal axis of the housing. The elongated conductor generates an oscillating electromagnetic field within the interior volume of the housing. The oscillating electromagnetic field produces a NMR signal within the fluid sample. The elongated conductor may also be used to receive this NMR signal. The NMR signal is then analyzed to determine information about the fluid sample. Various NMR pulse sequences for use with this coaxial probe and other coaxial probes are also described herein.

    Abstract translation: 本文描述了同轴核磁共振（NMR）探针和相关方法。 同轴NMR探头包括具有流体入口，流体出口，纵向轴线和内部体积的壳体。 壳体包含被探针分析的流体样品。 同轴NMR探头还包括沿着壳体的纵向轴线设置的细长导体。 细长的导体在壳体的内部空间内产生振荡的电磁场。 振荡电磁场在流体样品内产生NMR信号。 细长导体也可用于接收该NMR信号。 然后分析NMR信号以确定关于流体样品的信息。 本文还描述了用于该同轴探针和其它同轴探针的各种NMR脉冲序列。

    NMR probe and methods of use
    9.
    发明授权
    NMR probe and methods of use 有权

    公开(公告)号：US10386530B2

    公开(公告)日：2019-08-20

    申请号：US14431843

    申请日：2013-09-27

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Yi-Qiao Song ,  Soumyajit Mandal ,  Yiqiao Tang ,  Martin D. Hurlimann ,  Jeffrey Paulsen

    IPC: G01R33/30 ,  G01V3/32 ,  E21B49/08 ,  G01N24/08 ,  G01R33/345 ,  G01R33/44 ,  G01R33/46 ,  G01N24/10 ,  G01R33/383

    Abstract: A coaxial nuclear magnetic resonance (NMR) probe and related methods are described herein. The coaxial NMR probe includes a housing with a fluid inlet, a fluid outlet, a longitudinal axis, and an interior volume. The housing contains a fluid sample that is analyzed by the probe. The coaxial NMR probe also includes an elongated conductor disposed along the longitudinal axis of the housing. The elongated conductor generates an oscillating electromagnetic field within the interior volume of the housing. The oscillating electromagnetic field produces a NMR signal within the fluid sample. The elongated conductor may also be used to receive this NMR signal. The NMR signal is then analyzed to determine information about the fluid sample. Various NMR pulse sequences for use with this coaxial probe and other coaxial probes are also described herein.

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