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    BACKBONE NETWORK ARCHITECTURE AND NETWORK MANAGEMENT SCHEME FOR DOWNHOLE WIRELESS COMMUNICATIONS SYSTEM
    13.
    发明申请
    BACKBONE NETWORK ARCHITECTURE AND NETWORK MANAGEMENT SCHEME FOR DOWNHOLE WIRELESS COMMUNICATIONS SYSTEM 有权
    用于卧室无线通信系统的背板网络架构和网络管理方案

    公开(公告)号：US20160356152A1

    公开(公告)日：2016-12-08

    申请号：US15171700

    申请日：2016-06-02

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Arnaud Croux ,  Stephane Vannuffelen

    IPC: E21B47/14 ,  G08C23/02

    CPC classification number: E21B47/14 ,  E21B47/16 ,  G08C23/02 ,  H04B11/00 ,  H04W40/12

    Abstract: A network management system for a wireless communications network adaptively selects wireless modems to use in communicating messages between a control system and downhole equipment. The wireless modems are selected based on a monitored signal to noise ratio. The network management system may be centralized within the network or within a surface control system or can be decentralized so that a plurality of the wireless modems can adaptively determine routing in the network. The network management systems can be used in conjunction with a backbone network architecture to achieve further efficiencies in network throughput.

    Abstract translation: 用于无线通信网络的网络管理系统自适应地选择无线调制解调器以用于在控制系统和井下设备之间传达消息。 基于监测的信噪比选择无线调制解调器。 网络管理系统可以集中在网络内或表面控制系统内，或者可以分散，使得多个无线调制解调器可以自适应地确定网络中的路由。 网络管理系统可以与骨干网络架构一起使用，以实现网络吞吐量的进一步提高。

    Acoustic Communications Network with Frequency Diversification
    14.
    发明申请
    Acoustic Communications Network with Frequency Diversification 有权
    声频通信网络与频率多样化

    公开(公告)号：US20160258285A9

    公开(公告)日：2016-09-08

    申请号：US14818270

    申请日：2015-08-04

    Applicant: Schlumberger Technology Corporation

    Inventor： Arnaud Croux

    IPC: E21B47/16

    CPC classification number: E21B47/16 ,  H04B11/00

    Abstract: An acoustic communications network includes acoustic modems that exchange messages on an acoustic communications medium, such as tubing deployed in a wellbore. The acoustic communications medium is characterized by an acoustic transfer function having a plurality of passbands and a plurality of stopbands. The messages are communicated by encoding the message into a plurality of symbols representing the message and distributing the plurality of symbols across a bandwidth of a wideband acoustic signal that spans at least one passband and at least one stopband of the acoustic transfer function.

    Abstract translation: 声学通信网络包括在诸如在井筒中部署的管道之类的声学通信介质上交换消息的声调制解调器。 声通信介质的特征在于具有多个通带和多个阻带的声传递函数。 通过将消息编码成表示消息的多个符号并且跨越跨越声学传递函数的至少一个通带和至少一个阻带的宽带声信号的带宽分配多个符号来传送消息。

    Combined telemetry and control system for subsea applications
    15.
    发明授权
    Combined telemetry and control system for subsea applications 有权

    公开(公告)号：US11149544B2

    公开(公告)日：2021-10-19

    申请号：US16471216

    申请日：2016-12-19

    Applicant: Schlumberger Technology Corporation

    Inventor： Benoit Deville ,  Arnaud Croux ,  Stephane Vannuffelen

    IPC: E21B47/16 ,  E21B33/06 ,  E21B33/064

    Abstract: A technique facilitates communication in a subsea well application. The technique involves deployment of a blowout preventer subsea control and telemetry system to a subsea location proximate a wellbore. The blowout preventer subsea control and telemetry system is coupled to both a blowout preventer system and a wireless telemetry system. The wireless telemetry system has a plurality of repeaters deployed along the wellbore. The blowout preventer subsea control and telemetry system is used both to collect data from the wireless telemetry system and to control operation of the blowout preventer system. For example, the blowout preventer subsea control and telemetry system may receive control signals from a surface system and also relay data to the surface system through a common communication line.

    DOWNHOLE ELECTROMAGNETIC NETWORK
    16.
    发明申请
    DOWNHOLE ELECTROMAGNETIC NETWORK 审中-公开

    公开(公告)号：US20200291768A1

    公开(公告)日：2020-09-17

    申请号：US16314165

    申请日：2017-06-28

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Julius Kusuma ,  Robert Tennent ,  Arnaud Croux

    IPC: E21B47/13 ,  E21B17/00 ,  G01V3/12

    Abstract: The present disclosure describes methods and systems that can be used for controlling and coordinating the transmission of electromagnetic telemetry signals from and/or to a plurality of downhole tools to minimize or reduce electromagnetic interference between the transmissions. Signal coordination control is also disclosed that allows for duplex bidirectional communication of transmissions of electromagnetic telemetry signals such that electromagnetic interference between the transmissions is minimized or reduced.

    Heterogeneous downhole acoustic network
    17.
    发明授权
    Heterogeneous downhole acoustic network 有权

    公开(公告)号：US10708869B2

    公开(公告)日：2020-07-07

    申请号：US15419544

    申请日：2017-01-30

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Arnaud Croux ,  Julius Kusuma ,  Stephane Vannuffelen

    IPC: H04W52/24 ,  H04W40/00 ,  H04W56/00 ,  H04L5/00 ,  H04L5/14 ,  H04L27/00

    Abstract: An acoustic network is located in a formation traversed by a borehole having a pipe contained therein. The acoustic network includes a backbone network having a number of backbone modems engaging the pipe and acoustically communicating along the pipe using a first modulation technique. A number of end node modems acoustically communicate using a second modulation technique orthogonal to the first modulation technique. At least one of the backbone modems is a bridge hub modem that is coupled to both the backbone network and an end node modem and communicates with the backbone network using the first modulation technique and with the end node modem using the second modulation technique. The end node modems may have a hibernation mode defined by low energy usage with no transmission or receipt of data, and a transmission mode defined by transmission of data by the end node modem.

    Real-time electromagnetic telemetry system
    20.
    发明授权
    Real-time electromagnetic telemetry system 有权

    公开(公告)号：US10274639B2

    公开(公告)日：2019-04-30

    申请号：US15620703

    申请日：2017-06-12

    Applicant: Schlumberger Technology Corporation

    Inventor： Andriy Gelman ,  Julius Kusuma ,  Luis Eduardo DePavia ,  Arnaud Croux

    IPC: G01V3/00 ,  G01V11/00 ,  E21B47/12

    Abstract: A method for improving a quality of data received from a downhole tool in a wellbore includes receiving a first block of data from a downhole tool in a wellbore. The first block of data represents a first measurement captured by the downhole tool during a first period of time. At least a portion of a bit budget for a second block of data is allocated to the first block of data to produce an updated first block of data. The method also includes receiving the second block of data from the downhole tool in the wellbore. The second block of data represents a second measurement captured by the downhole tool during a second period of time.

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