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    RECEIVER FOR AN ACOUSTIC TELEMETRY SYSTEM
    11.
    发明申请
    RECEIVER FOR AN ACOUSTIC TELEMETRY SYSTEM 审中-公开
    接收器用于声学电报系统

    公开(公告)号：US20080137481A1

    公开(公告)日：2008-06-12

    申请号：US11945055

    申请日：2007-11-26

    申请人： Vimal V. Shah ,  Wallace R. Gardner ,  Donald G. Kyle

    发明人： Vimal V. Shah ,  Wallace R. Gardner ,  Donald G. Kyle

    IPC分类号： E21B47/16 ,  G01V1/40

    CPC分类号： E21B47/16 ,  E21B47/12 ,  E21B47/14

    摘要： One embodiment includes a method comprising receiving an acoustic signal that is propagated along a drill string. The method also includes correlating the acoustic signal to a first stored acoustic signal representing a first symbol, wherein the first stored acoustic signal is acquired from a propagation along the drill string in an approximately noise free environment.

    摘要翻译： 一个实施例包括一种方法，包括接收沿着钻柱传播的声信号。 该方法还包括将声学信号与表示第一符号的第一存储的声学信号相关联，其中，在大致无噪声的环境中，沿着钻柱的传播获取第一存储的声学信号。

    Receiver for an acoustic telemetry system
    12.
    发明授权
    Receiver for an acoustic telemetry system 有权
    用于声学遥测系统的接收器

    公开(公告)号：US07301473B2

    公开(公告)日：2007-11-27

    申请号：US10925267

    申请日：2004-08-24

    申请人： Vimal V. Shah ,  Wallace R. Gardner ,  Donald G. Kyle

    发明人： Vimal V. Shah ,  Wallace R. Gardner ,  Donald G. Kyle

    IPC分类号： G01V3/00

    CPC分类号： E21B47/16 ,  E21B47/12 ,  E21B47/14

    摘要： One embodiment includes a method comprising receiving an acoustic signal that is propagated along a drill string. The method also includes correlating the acoustic signal to a first stored acoustic signal representing a first symbol, wherein the first stored acoustic signal is acquired from a propagation along the drill string in an approximately noise free environment.

    摘要翻译： 一个实施例包括一种方法，包括接收沿着钻柱传播的声信号。 该方法还包括将声学信号与表示第一符号的第一存储的声学信号相关联，其中，在大致无噪声的环境中，沿着钻柱的传播获取第一存储的声学信号。

    Big bore transceiver
    17.
    发明授权
    Big bore transceiver 有权
    大口径收发器

    公开(公告)号：US07301472B2

    公开(公告)日：2007-11-27

    申请号：US10616736

    申请日：2003-07-10

    申请人： Donald G. Kyle ,  Adam D. Wright ,  Harold W. Nivens ,  Kenny L. McConnell ,  Vimal V. Shah ,  Eric H. Van Empelen

    发明人： Donald G. Kyle ,  Adam D. Wright ,  Harold W. Nivens ,  Kenny L. McConnell ,  Vimal V. Shah ,  Eric H. Van Empelen

    IPC分类号： G01V11/00

    CPC分类号： E21B47/14 ,  E21B47/12

    摘要： In a subterranean well completion a bi-directional signal transmission system includes an in-line acoustic transceiver mounted in a tubing string extending through the wellbore, the transceiver being disposed beneath a hanger structure engaging the tubing string. Via the tubing string the transceiver receives acoustic signals from well parameter sensing apparatus further downhole and converts the received acoustic signals to non-acoustic signals. The resulting non-acoustic signals are then transmitted upwardly through the hanger structure, to a signal receiving location, via cabling. In this manner, the hanger structure does not adversely affect the strength of either upwardly or downwardly transmitted signals traversing it. Alternatively, the acoustic well parameter signals received by the transceiver are converted to electromagnetic signals which pass through the earth, are picked up by a receiver external to the well completion, and then relayed to the receiving location.

    摘要翻译： 在地下井完井中，双向信号传输系统包括安装在延伸穿过井筒的管柱中的直列式声收发器，该收发器设置在与油管柱接合的衣架结构下方。 通过管柱，收发器从井下参数传感装置进一步接收声信号，并将接收到的声信号转换成非声信号。 然后，所得到的非声学信号经由电缆布线向上穿过衣架结构传送到信号接收位置。 以这种方式，衣架结构不会对穿过其的向上或向下传递的信号的强度产生不利影响。 或者，由收发器接收的声学井参数信号被转换成通过地球的电磁信号，由完井完井之外的接收器拾取，然后中继到接收位置。

    Drill string incorporating an acoustic telemetry system employing one or more low frequency acoustic attenuators and an associated method of transmitting data
    18.
    发明授权
    Drill string incorporating an acoustic telemetry system employing one or more low frequency acoustic attenuators and an associated method of transmitting data 有权
    包括采用一个或多个低频声衰减器的声学遥测系统的钻柱以及发送数据的相关方法

    公开(公告)号：US07068183B2

    公开(公告)日：2006-06-27

    申请号：US10882730

    申请日：2004-06-30

    申请人： Vimal V. Shah ,  Eugene R. Linyaev ,  Donald G. Kyle ,  Wallace R. Gardner ,  Paul F. Rodney

    发明人： Vimal V. Shah ,  Eugene R. Linyaev ,  Donald G. Kyle ,  Wallace R. Gardner ,  Paul F. Rodney

    IPC分类号： G01V3/00

    CPC分类号： E21B47/16 ,  G01V11/002

    摘要： A drill pipe forms an acoustic transmission channel for data to be transmitted from a downhole transceiver to a surface transceiver. By positioning a first low frequency acoustic attenuator between a drill bit and the downhole transceiver, acoustic noise generated by the drill bit is attenuated. Similarly, by positioning the surface transceiver between the top of the drill pipe and a second low frequency acoustic attenuator, acoustic noise generated by surface equipment is attenuated. In this manner, the first and second low frequency acoustic attenuators serve as terminators for the acoustic transmission channel. Finally, by combining a third low frequency acoustic attenuator positioned between first and second sections of the drill pipe with first and second acoustic transceivers acoustically isolated from one another by the third low frequency acoustic attenuator and non-acoustically coupled to one another for bi-directional exchanges of signals, an acoustic repeater is provided for the transmission channel.

    摘要翻译： 钻杆形成用于从井下收发器传输到地面收发器的数据的声传输通道。 通过将钻头和井下收发器之间的第一低频声衰减器定位，钻头产生的声学噪声被衰减。 类似地，通过将​​表面收发器定位在钻杆的顶部和第二低频声衰减器之间，由表面设备产生的声学噪声被衰减。 以这种方式，第一和第二低频声衰减器用作声传输通道的终端。 最后，通过将位于钻杆的第一和第二部分之间的第三低频声衰减器组合成由第三低频声衰减器彼此声隔离的第一和第二声收发器，并且非声学地耦合到双向 为传输信道提供信号交换，声中继器。

    Methods and systems for transmitting and receiving a discrete multi-tone modulated signal in a fluid
    19.
    发明授权
    Methods and systems for transmitting and receiving a discrete multi-tone modulated signal in a fluid 有权
    用于在流体中发送和接收离散多色调调制信号的方法和系统

    公开(公告)号：US07187298B2

    公开(公告)日：2007-03-06

    申请号：US11035107

    申请日：2005-01-13

    申请人： Wallace R. Gardner ,  Vimal V. Shah

    发明人： Wallace R. Gardner ,  Vimal V. Shah

    IPC分类号： G01V3/00

    CPC分类号： E21B47/182

    摘要： Methods and systems for transmitting and receiving a discrete multi-tone (DMT) modulated signal in a fluid. Some illustrative embodiments may be a method comprising transforming an input data series into an information-carrying signal (the information-carrying signal carrying input data from the input data series as modulations of at least one of a plurality of evenly spaced frequency bins), and applying the information-carrying signal to a transducer that converts the information-carrying signal into pressure variations within a fluid.

    摘要翻译： 用于在流体中发送和接收离散多音调（DMT）调制信号的方法和系统。 一些说明性实施例可以是一种方法，包括将输入数据序列变换为信息携带信号（从输入数据序列携带输入数据作为多个均匀间隔的频率仓中的至少一个的调制）的信息携带信号，以及 将信息携带信号应用于将信息携带信号转换成流体内的压力变化的换能器。

    Dual channel downhole telemetry
    20.
    发明授权
    Dual channel downhole telemetry 有权
    双通道井下遥测

    公开(公告)号：US06909667B2

    公开(公告)日：2005-06-21

    申请号：US10075529

    申请日：2002-02-13

    申请人： Vimal V. Shah ,  Wallace R. Gardner ,  Paul F. Rodney ,  James H. Dudley ,  M. Douglas McGregor

    发明人： Vimal V. Shah ,  Wallace R. Gardner ,  Paul F. Rodney ,  James H. Dudley ,  M. Douglas McGregor

    IPC分类号： E21B47/12 ,  E21B47/16 ,  E21B47/18 ,  H04H9/00

    CPC分类号： E21B47/122 ,  E21B47/16 ,  E21B47/18

    摘要： The present disclosure provides several methods for selecting and transmitting information from downhole using more than one channel of communication wherein data streams transmitted up each communications channel are each independently interpretable without reference to data provided up the other of the communications channels. Preferred embodiments incorporate the use of a combination of at least two of mud-based telemetry, tubular-based telemetry, and electromagnetic telemetry to achieve improved results and take advantage of opportunities presented by the differences between the different channels of communication.

    摘要翻译： 本公开提供了用于使用多于一个通信信道从井下选择和发送信息的几种方法，其中在每个通信信道上发送的数据流都可以独立地解释，而不参考另一个通信信道提供的数据。 优选实施例结合使用基于泥浆的遥测，基于管的遥测和电磁遥测中的至少两种的组合来实现改进的结果并且利用由不同通信通道之间的差异呈现的机会。