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    Mud pulse telemetry devices, systems, and methods
    1.
    发明授权
    Mud pulse telemetry devices, systems, and methods 有权

    公开(公告)号：US09695686B2

    公开(公告)日：2017-07-04

    申请号：US14652123

    申请日：2013-12-13

    申请人： Schlumberger Technology Corporation

    发明人： Hugues Bouvier ,  Alain Guelat ,  Remi Hutin

    IPC分类号： E21B47/18

    CPC分类号： E21B47/182

    摘要： Devices, systems and methods for transmitting downhole data are provided. The devices include a rotor-stator modulator configured for use in a drill string, and a drive and control system configured to drive the rotor according to a modulation scheme resulting in both oscillating and full rotational movement. The modulation scheme can comprise a trajectory algorithm such as a QAM trajectory algorithm. The systems include a modulator disposed within a drill string which creates modulated pulses according to an algorithm providing for both oscillating and full rotational movement of the rotor, and may also include a demodulator. The methods include transmitting coded data by driving a rotor relative a stator disposed in a drill string according to a modulation scheme that provides both oscillating and full rotational movement and results in modulated mud pulses representative of data recorded downhole, and may involve decoding the data.

    Mud Pulse Telemetry Devices, Systems, and Methods
    4.
    发明申请
    Mud Pulse Telemetry Devices, Systems, and Methods 有权
    泥浆脉冲遥测装置，系统和方法

    公开(公告)号：US20150322780A1

    公开(公告)日：2015-11-12

    申请号：US14652123

    申请日：2013-12-13

    申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

    发明人： Hugues Bouvier ,  Alain Guelat ,  Remi Hutin

    IPC分类号： E21B47/18

    CPC分类号： E21B47/182

    摘要： Devices, systems and methods for transmitting downhole data are provided. The devices include a rotor-stator modulator configured for use in a drill string, and a drive and control system configured to drive the rotor according to a modulation scheme resulting in both oscillating and full rotational movement. The modulation scheme can comprise a trajectory algorithm such as a QAM trajectory algorithm. The systems include a modulator disposed within a drill string which creates modulated pulses according to an algorithm providing for both oscillating and full rotational movement of the rotor, and may also include a demodulator. The methods include transmitting coded data by driving a rotor relative a stator disposed in a drill string according to a modulation scheme that provides both oscillating and full rotational movement and results in modulated mud pulses representative of data recorded downhole, and may involve decoding the data.

    摘要翻译： 提供了用于传输井下数据的设备，系统和方法。 这些装置包括构造成用于钻柱中的转子 - 定子调制器，以及驱动和控制系统，该驱动和控制系统构造成根据调制方案驱动转子，导致振荡和全旋转运动。 调制方案可以包括诸如QAM轨迹算法的轨迹算法。 该系统包括设置在钻柱内的调制器，其根据提供转子的振荡和全旋转运动的算法产生调制脉冲，并且还可以包括解调器。 所述方法包括通过根据提供振荡和全旋转运动的调制方案相对于设置在钻柱中的定子驱动转子来传输编码数据，并且导致表示井下记录数据的调制泥浆脉冲，并且可涉及对数据进行解码。

    Heat Dissipation in Downhole Equipment
    7.
    发明申请
    Heat Dissipation in Downhole Equipment 有权
    井下设备中的散热

    公开(公告)号：US20130126171A1

    公开(公告)日：2013-05-23

    申请号：US13682697

    申请日：2012-11-20

    申请人： Schlumberger Technology Corporation

    发明人： Florence Garnier ,  Jean-Christophe Auchere ,  Alain Guelat

    IPC分类号： E21B43/24

    CPC分类号： E21B47/011 ,  E21B36/001

    摘要： A downhole assembly may include a housing having an outer surface and an inner surface, the outer surface adapted for contact with a downhole fluid, the inner surface defining an interior volume. One or more heat producing components may be disposed within the interior volume and in thermal contact with a structural component (e.g., chassis). One or more thermal dissipation members may be disposed within the housing, the one or more thermal dissipation members in thermal contact with the chassis and in thermal contact with the inner surface of the housing.

    摘要翻译： 井下组件可以包括具有外表面和内表面的壳体，外表面适于与井下流体接触，内表面限定内部体积。 一个或多个发热部件可以设置在内部容积内并与结构部件（例如底盘）热接触。 一个或多个散热构件可以设置在壳体内，一个或多个散热构件与底座热接触并与壳体的内表面热接触。

    TEMPERATURE SENSOR TECHNIQUE FOR DETERMINING A WELL FLUID CHARACTERISTIC
    10.
    发明申请
    TEMPERATURE SENSOR TECHNIQUE FOR DETERMINING A WELL FLUID CHARACTERISTIC 审中-公开
    温度传感器技术用于确定良好的流体特性

    公开(公告)号：US20170009568A1

    公开(公告)日：2017-01-12

    申请号：US15202235

    申请日：2016-07-05

    申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

    发明人： Alain Guelat ,  Celine Gabard-Cuoq ,  Yves Manin

    IPC分类号： E21B47/06 ,  G01V9/00 ,  G01K13/02 ,  E21B43/16

    CPC分类号： E21B47/065 ,  E21B37/06 ,  E21B47/1005 ,  G01K1/026 ,  G01K3/10 ,  G01K13/02

    摘要： A method of determining changing well characteristics at downhole locations based on changes in detected temperatures by permanently installed downhole sensors. The methods and tools utilized involve the establishing of baseline temperature profiles, for example, at the outset of well operations. The installed sensors may be powered are rechecked on a periodic or continuous basis for substantial deviations to the temperature profiles which are indicative of particular well condition changes such as the depositing of asphaltene or decreases in fluid velocity.

    摘要翻译： 基于通过永久安装的井下传感器检测到的温度的变化来确定井下位置的变化井特性的方法。 所用的方法和工具包括建立基线温度曲线，例如，在井操作开始时。 所安装的传感器可以被供电，其周期性或连续性被重新检查，以显着地偏离温度分布，其指示特定的井状况变化，例如沉积沥青质或降低流体速度。