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    • 2. 发明申请
    • WIRELESS TELEMETRY SYSTEMS FOR DOWNHOLE TOOLS
    • 无线电远程工具系统
    • WO2010020354A1
    • 2010-02-25
    • PCT/EP2009/005715
    • 2009-08-04
    • SERVICES PETROLIERS SCHLUMBERGERSCHLUMBERGER TECHNOLOGY B.V.SCHLUMBERGER HOLDINGS LIMITEDSCHLUMBERGER CANADA LIMITEDPRAD RESEARCH AND DEVELOPMENT LIMITEDLEMENAGER, Erwann
    • LEMENAGER, Erwann
    • E21B47/12E21B47/16
    • E21B47/122E21B47/16
    • Apparatus and method for transmitting data in a borehole (10) between a downhole installation including one or more tools (20) (for example downhole testing tools) and a surface installation (62), wherein the downhole installation is connected to the surface installation by means of a tubular conduit (such as a drill string or production tubing 14) ). The apparatus comprises: an acoustic modem (26) associated with each tool, the modem acting to convert tool signals such as electrical tool signals into acoustic signals; and a hub (90) forming part of the downhole installation to which the tools and tubular conduit are connected and comprising an acoustic receiver (74) and an electromagnetic transmitter (80). The acoustic modems operate to generate acoustic signals in the downhole installation representative of the tool signals, the acoustic signals passing along the downhole installation to be received at the acoustic receiver of the hub, the received acoustic signals being used to operate the electromagnetic transmitter to transmit electromagnetic signals to the surface for reception at the surface installation.
    • 在包括一个或多个工具(20)(例如井下测试工具)的井下设备和表面安装件(62)之间的钻孔(10)中传送数据的设备和方法,其中井下设备通过 管状管道(例如钻柱或生产管道14)的装置)。 该装置包括:与每个工具相关联的声调制解调器(26),调制解调器用于将诸如电动工具信号的工具信号转换为声信号; 以及形成所述工具和管状导管连接到的所述井下装置的一部分的毂(90),并且包括声学接收器(74)和电磁发射器(80)。 声学调制解调器操作以在代表工具信号的井下设备中产生声信号,沿着井下设备通过的声信号将被接收在集线器的声学接收器处,所接收的声信号用于操作电磁发射器以传输 电磁信号到表面进行表面安装接收。
    • 8. 发明申请
    • ACOUSTIC TELEMETRY SYSTEM FOR USE IN A DRILLING BHA
    • 用于钻孔的声学遥测系统
    • WO2011095430A2
    • 2011-08-11
    • PCT/EP2011051152
    • 2011-01-27
    • SCHLUMBERGER SERVICES PETROLSCHLUMBERGER TECHNOLOGY BVSCHLUMBERGER HOLDINGSSCHLUMBERGER CA LTDPRAD RES & DEV LTDALTEIRAC LAURENTLEMENAGER ERWANN
    • ALTEIRAC LAURENTLEMENAGER ERWANN
    • E21B43/14E21B43/16
    • E21B43/14E21B43/16
    • A system for transmitting data along a borehole, comprises a drill string; a bottom hole assembly connected to the drill string including a drilling motor powered by flow of fluid from the drill string, a drill bit connected below the drilling motor and arranged to be rotated by the motor, and at least one sensor being positioned between the drilling motor and the drill bit; a first telemetry system for transmitting data from a first location below the drilling motor to a second location above the drilling motor, the first telemetry system comprising a first transmitter at the first location configured to induce an acoustic signal for propagation along the BHA, and a first acoustic receiver at the second location arranged to receive the acoustic signal; and a second telemetry system comprising two or more transmission channels for transmitting data received by the first acoustic receiver from the second location back up the borehole. The transmission channels are selectable based on a measured condition of the borehole.
    • 一种用于沿钻孔传送数据的系统,包括钻柱; 连接到钻柱的底孔组件包括钻井马达,该钻机由来自钻柱的流体流动驱动,连接在钻井马达下方并被布置成由马达旋转的钻头,以及位于钻孔之间的至少一个传感器 电机和钻头; 第一遥测系统,用于将数据从钻孔马达下方的第一位置传输到钻井马达之上的第二位置,所述第一遥测系统包括在第一位置处的第一发射器,其被配置为引导声信号沿着BHA传播;以及 第二位置处的第一声接收器布置成接收声信号; 以及包括两个或更多个传输信道的第二遥测系统,用于将第一声学接收机接收的数据从第二位置发送回钻孔。 传输通道可根据钻孔的测量条件进行选择。
    • 9. 发明申请
    • TRANSMITTER AND RECEIVER SYNCHRONIZATION FOR WIRELESS TELEMETRY SYSTEMS
    • 无线电远程系统的发射机和接收机同步
    • WO2010069623A1
    • 2010-06-24
    • PCT/EP2009/060846
    • 2009-08-21
    • SERVICES PETROLIERS SCHLUMBERGERMILLOT, GuillaumeLEMENAGER, Erwann
    • MILLOT, GuillaumeLEMENAGER, Erwann
    • E21B47/18
    • E21B47/16E21B47/122
    • A method and system are presented for transmitting data along tubing in a borehole, comprising generating an acoustic signal using a transmitter at a first location on the tubing, and receiving the acoustic signal at a receiver at a second location on the tubing. The method and system further comprise: (i) generating the acoustic signal at the transmitter at a first frequency and bit rate; (ii) receiving the acoustic signal at the first frequency at the receiver and attempting to synchronise the receiver at the first frequency, and (iiia) if the synchronization is successful, continuing to transmit the acoustic signal so as to pass the data from the transmitter to the receiver; or (iiib) if the synchronization is unsuccessful, adjusting the frequency and/or bit rate of the signal and repeating steps (i) - (iii) on the basis of the adjusted signal.
    • 提出了一种用于沿钻孔中的管道传输数据的方法和系统,包括使用管道上的第一位置处的发射器产生声学信号,以及在管道上的第二位置的接收器处接收声学信号。 该方法和系统还包括:(i)以第一频率和比特率在发射机处产生声信号; (ii)在接收机处以第一频率接收声信号并尝试以第一频率同步接收机,以及(iiia)如果同步成功,则继续发送声信号以使来自发射机的数据通过 接收器; 或者(iiib)如果同步不成功,则调整信号的频率和/或比特率,并且基于经调整的信号重复步骤(i) - (iii)。