公开(公告)号：US09695686B2

公开(公告)日：2017-07-04

申请号：US14652123

申请日：2013-12-13

Applicant: Schlumberger Technology Corporation

Inventor： Hugues Bouvier ,  Alain Guelat ,  Remi Hutin

IPC: E21B47/18

CPC classification number: E21B47/182

Abstract: 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.

公开(公告)号：US09982528B2

公开(公告)日：2018-05-29

申请号：US14814133

申请日：2015-07-30

Applicant: Schlumberger Technology Corporation

Inventor： Adolfo Recio ,  Tamim Sawaf ,  Ryan Parasram ,  Hugues Bouvier ,  Robert Tennent ,  Scott Cook

IPC: E21B47/12 ,  H04Q9/00 ,  E21B44/00 ,  E21B47/18 ,  E21B49/00 ,  H04L27/34 ,  G01K1/02 ,  E21B47/00

CPC classification number: E21B47/12 ,  E21B44/00 ,  E21B47/00 ,  E21B47/182 ,  E21B49/00 ,  G01K1/026 ,  H04L27/34 ,  H04Q9/00

Abstract: Methods and related apparatus pertaining to downhole and surface telemetry, such as a method in which a telemetry system is provided with a communication path formed with an electrically conductive transport medium coupled across a plurality of downhole nodes. Such method includes operating on the communication path with a multi-drop system that provides telemetry to the downhole nodes in a wellbore, including employing modulation in a master-slave arrangement using binary differential phase shift keying or differential quadrature phase shift keying.

公开(公告)号：US20160032714A1

公开(公告)日：2016-02-04

申请号：US14814133

申请日：2015-07-30

Applicant: Schlumberger Technology Corporation

Inventor： Sira Rao ,  Bao Mi ,  Adolfo Recio ,  Ryan Parasram ,  Hugues Bouvier ,  Scott Cook ,  Tamim Sawaf ,  Robert W. Tennent

IPC: E21B47/12

CPC classification number: E21B47/12 ,  E21B44/00 ,  E21B47/00 ,  E21B47/182 ,  E21B49/00 ,  G01K1/026 ,  H04L27/34 ,  H04Q9/00

Abstract: Methods and related apparatus pertaining to downhole and surface telemetry, such as a method in which a telemetry system is provided with a communication path formed with an electrically conductive transport medium coupled across a plurality of downhole nodes. Such method includes operating on the communication path with a multi-drop system that provides telemetry to the downhole nodes in a wellbore, including employing modulation in a master-slave arrangement using binary differential phase shift keying or differential quadrature phase shift keying.

Abstract translation: 关于井下和地面遥测的方法和相关设备，例如遥测系统设置有形成有连接在多个井下节点上的导电传输介质的通信路径的方法。 这种方法包括使用向井筒内的井下节点提供遥测的多点系统来操作通信路径，包括使用二进制微分相移键控或差分正交相移键控在主从设备中进行调制。

公开(公告)号：US20150322780A1

公开(公告)日：2015-11-12

申请号：US14652123

申请日：2013-12-13

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Hugues Bouvier ,  Alain Guelat ,  Remi Hutin

IPC: E21B47/18

CPC classification number: E21B47/182

Abstract: 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.

Abstract translation: 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。