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1. 发明授权

US06909667B2 Dual channel downhole telemetry 有权
标题翻译：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。

2. 发明授权

US07068183B2 Drill string incorporating an acoustic telemetry system employing one or more low frequency acoustic attenuators and an associated method of transmitting data 有权
标题翻译：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。

3. 发明授权

US06978832B2 Downhole sensing with fiber in the formation 失效
标题翻译：井下感应与地层中的纤维
公开(公告)号：US06978832B2
公开(公告)日：2005-12-27
申请号：US10238005
申请日：2002-09-09
申请人： Wallace R. Gardner , Paul F. Rodney , Neal G. Skinner , Vimal V. Shah
发明人： Wallace R. Gardner , Paul F. Rodney , Neal G. Skinner , Vimal V. Shah
IPC分类号： E21B43/26 , E21B47/00 , E21B47/06 , E21B47/12
CPC分类号： E21B43/26 , E21B47/00 , E21B47/06 , E21B47/123
摘要： A portion of at least one fiber is moved from a wellbore into a formation such that the portion is placed to conduct a signal responsive to at least one parameter in the formation. One particular implementation uses fiber optic cable with a process selected from the group consisting of a fracturing process, an acidizing process, and a conformance process.
摘要翻译：至少一个纤维的一部分从井孔移动到地层中，使得该部分被放置成响应于地层中的至少一个参数传导信号。一种特定的实施方案使用具有选自压裂过程，酸化过程和一致性过程的方法的光纤电缆。

4. 发明授权

US06847034B2 Downhole sensing with fiber in exterior annulus 失效
标题翻译：井下传感与纤维在外环
公开(公告)号：US06847034B2
公开(公告)日：2005-01-25
申请号：US10237470
申请日：2002-09-09
申请人： Vimal V. Shah , Wallace R. Gardner , Paul F. Rodney , Neal G. Skinner
发明人： Vimal V. Shah , Wallace R. Gardner , Paul F. Rodney , Neal G. Skinner
IPC分类号： E21B23/08 , E21B23/14 , E21B47/00 , E21B47/12 , G01V8/00
CPC分类号： E21B47/0005 , E21B23/08 , E21B23/14 , E21B47/123
摘要： A portion of at least one fiber is moved into an exterior annulus of a well between a tubular structure in the well and the wall of the borehole of the well such that the portion is placed to conduct a signal responsive to at least one parameter in the exterior annulus. One particular implementation uses fiber optic cable with a cementing process whereby flowing cementing fluid pulls the portion of the cable into the exterior annulus.
摘要翻译：至少一个纤维的一部分被移动到井中的管状结构和井的井眼的壁之间的井的外部环空中，使得该部分被放置成响应于至少一个参数外环一个具体的实施方案使用具有固井过程的光纤电缆，其中流动的固井流体将电缆的一部分拉到外部环空中。

5. 发明授权

US08634273B2 Acoustic telemetry system using passband equalization 有权
标题翻译：使用通带均衡的声学遥测系统
公开(公告)号：US08634273B2
公开(公告)日：2014-01-21
申请号：US12605979
申请日：2009-10-26
申请人： Wallace R. Gardner , Vimal V. Shah , Carl A. Robbins
发明人： Wallace R. Gardner , Vimal V. Shah , Carl A. Robbins
IPC分类号： E21B47/16
CPC分类号： G01V11/002 , E21B47/16
摘要： An embodiment includes a method comprising transmitting and receiving an acoustic signal that is modulated along a jointed tubing. The acoustic signal may be transmitted in multiple passbands of the jointed tubing and may be modulated differently in different passbands. A swept frequency signal may be used to determine transmission characteristics of the jointed tubing and to select the multiple passbands. Additional embodiments are disclosed.
摘要翻译：一个实施例包括一种方法，包括发送和接收沿着接合管道调制的声信号。声信号可以在连接管道的多个通带中传输，并且可以在不同的通带中被不同地调制。可以使用扫频信号来确定连接管道的传输特性并选择多个通带。公开了另外的实施例。

6. 发明授权

US07468678B2 Downhole telemetry system for wired tubing 有权
标题翻译：用于有线管道的井下遥测系统
公开(公告)号：US07468678B2
公开(公告)日：2008-12-23
申请号：US11560079
申请日：2006-11-15
申请人： Vimal V. Shah , Wallace R Gardner
发明人： Vimal V. Shah , Wallace R Gardner
IPC分类号： G01V3/00
CPC分类号： E21B47/122 , E21B47/12 , G01V11/002
摘要： A communications system employing discrete multi-tone (“DMT”) modulated signals on a communications channel formed by inductively-coupled pipe. In one embodiment, the communications system includes a string of wired pipe joints that couple a transmitter to a receiver. Each pipe joint in the string possesses threaded ends configured for mechanically connecting with other pipe joints, a electrical or inductive coupler at each threaded end, and an insulated conductor that electrically connects the couplers. The transmitter and receiver communicate via DMT modulated signals transported by the wired pipe string. The system may further include multiple repeaters in the string. Each repeater may be configured to receive a DMT-modulated signal, to recover information from the DMT-modulated signal, and to retransmit the information in the form of a DMT-modulated signal.
摘要翻译：一种在由电感耦合管形成的通信信道上采用离散多音（“DMT”）调制信号的通信系统。在一个实施例中，通信系统包括将发射机耦合到接收器的一串有线管接头。弦中的每个管接头具有构造成与其他管接头机械连接的螺纹端，每个螺纹端处的电感或耦合器，以及电连接耦合器的绝缘导体。发射机和接收机通过由有线管道传输的DMT调制信号进行通信。该系统还可以包括串中的多个中继器。每个中继器可以被配置为接收DMT调制信号，以从DMT调制信号中恢复信息，并以DMT调制信号的形式重发信息。

7. 发明授权

US06880634B2 Coiled tubing acoustic telemetry system and method 有权
标题翻译：卷管声学遥测系统及方法
公开(公告)号：US06880634B2
公开(公告)日：2005-04-19
申请号：US10308610
申请日：2002-12-03
申请人： Wallace R. Gardner , Vimal V. Shah , Donald G. Kyle , Hampton Fowler, Jr. , Leonard Case
发明人： Wallace R. Gardner , Vimal V. Shah , Donald G. Kyle , Hampton Fowler, Jr. , Leonard Case
IPC分类号： E21B19/22 , E21B47/16
CPC分类号： E21B19/22 , E21B47/16
摘要： System, apparatus, and method of telemetering downhole sensor information to the surface while operations are performed in an oil or gas well using coiled tubing. Data are transmitted on coiled tubing as digital signals encoded in acoustic signals. In one implementation, a stripper packer through which coiled tubing is moved into a well is operated between at least a first state and a second state; and an acoustic communication device responds to operation of the stripper packer such that when the stripper packer is in the first state, the acoustic communication device is decoupled from acoustic communication with the coiled tubing, but when the stripper packer is in the second state, the acoustic communication device is coupled for acoustic communication with the coiled tubing.
摘要翻译：在使用连续油管在油井或气井中进行操作时，将井下传感器信息遥测到地面的系统，设备和方法。数据在连续油管上传输，作为以声信号编码的数字信号。在一个实施方案中，通过其将连续油管移动到井中的汽提器封隔器在至少第一状态和第二状态之间运行; 并且声学通信装置响应于汽提器封隔器的操作，使得当剥离器封隔器处于第一状态时，声学通信装置与连续管道的声学连通解耦，但是当汽提隔板封隔器处于第二状态时，声学通信装置被耦合用于与连续油管的声学通信。

8. 发明授权

US06370082B1 Acoustic telemetry system with drilling noise cancellation 有权
标题翻译：具有钻井噪声消除的声学遥测系统
公开(公告)号：US06370082B1
公开(公告)日：2002-04-09
申请号：US09332641
申请日：1999-06-14
申请人： Wallace R. Gardner , Vimal V. Shah , John W. Minear
发明人： Wallace R. Gardner , Vimal V. Shah , John W. Minear
IPC分类号： G01V140
CPC分类号： E21B47/16
摘要： An acoustic telemetry system is disclosed that reduces any through-drillstring drilling noise which contaminates a through-drillstring telemetry signal. Normal filtering operations are provided to remove noise outside the frequency band of interest, and reference signal filtering operations are provided to reduce the in-band noise, thereby enhancing the telemetry system's data rate and reliability. In one embodiment, the acoustic telemetry system includes a transmitter and a receiver. The transmitter induces an acoustic information signal that propagates along the tubing string. Existing noise in the tubing string contaminates the information signal. The receiver is provided with sensors for measuring the corrupted information signal and a reference signal that is indicative of the noise present in the measured information signal. The receiver uses a filter to convert the reference signal into an estimate of the information signal corruption, and a summing element to subtract the estimate from the reference signal to produce an information signal with reduced corruption. In a preferred embodiment, the information signal is propagated in an axial transmission mode, and the noise in the torsional mode is used as the reference signal for reducing noise the information signal picks up in the axial mode.
摘要翻译：公开了一种声学遥测系统，其减少了污染通过钻柱遥测信号的任何穿钻钻井噪声。提供正常滤波操作以去除感兴趣频带外的噪声，并提供参考信号滤波操作以减少带内噪声，从而提高遥测系统的数据速率和可靠性。在一个实施例中，声学遥测系统包括发射器和接收器。发射器引起沿着管柱传播的声信息信号。油管柱中的现有噪声会污染信息信号。接收器设置有用于测量损坏的信息信号的传感器和指示所测量的信息信号中存在的噪声的参考信号。接收机使用滤波器将参考信号转换为信息信号损坏的估计，以及相加元件，以从参考信号中减去估计，以产生具有减少的损坏的信息信号。在优选实施例中，信息信号以轴向传播模式传播，并且扭转模式中的噪声被用作用于降低信息信号以轴向模式拾取的噪声的参考信号。

9. 发明授权

US06320820B1 High data rate acoustic telemetry system 有权
标题翻译：高数据率声学遥测系统
公开(公告)号：US06320820B1
公开(公告)日：2001-11-20
申请号：US09400357
申请日：1999-09-20
申请人： Wallace R. Gardner , Vimal V. Shah
发明人： Wallace R. Gardner , Vimal V. Shah
IPC分类号： H04H900
CPC分类号： E21B47/16
摘要： A reliable, high data rate, downhole acoustic telemetry system is disclosed. In one embodiment, the acoustic telemetry system includes a tubing string with an acoustic transmitter and an acoustic receiver mounted on it. The acoustic transmitter transmits telemetry information by modulating an acoustic carrier frequency that propagates along the walls of the tubing string. The transmitter is preferably mounted at a selected position relative to the end of the tubing string. The selected position is preferably less than &lgr;/4 from the end or approximately n&lgr;/2 from the end, where &lgr; is the wavelength of the carrier frequency in the tubing string, and n is a positive integer. In a more preferred embodiment, n may be the lesser of 4 times the number of cycles in the modulating toneburst and 40. The receiver is preferably mounted at approximately (2n−1)&lgr;/4 relative to the end of the tubing string, where n is a positive integer. Such positioning prevents reflections of the acoustic signal from significantly degrading the received signal. The acoustic signaling advantageously employs pulse shaping to further improve system performance. To enhance data transmission rates, the acoustic receiver advantageously includes an equalizer that compensates for signal dispersion and intersymbol interference while simultaneously minimizing other forms of signal corruption such as additive noise and channel nonlinearities. The equalizer is preferably an adaptive, nonlinear equalizer that may also be fractionally spaced. Such equalizers eliminate any requirements for spacing intervals which allow signal reflections to die out. The resulting system is capable of higher data rates. When error correction codes are employed, no reliability losses are incurred.
摘要翻译：公开了一种可靠，高数据速率的井下声学遥测系统。在一个实施例中，声学遥测系统包括具有声发射器的管柱和安装在其上的声学接收器。声发射器通过调制沿着管柱的壁传播的声载波频率来发射遥测信息。变送器优选地安装在相对于油管柱的端部的选定位置处。所选择的位置优选地从末端小于lambd / 4或从末端起大约nlambd / 2，其中lambd是油管柱中载波频率的波长，n是正整数。在更优选的实施例中，n可以是调制色调峰值和40中循环次数的4倍中的较小值。接收器优选地相对于管柱的端部以大约（2n-1）lambd / 4安装，其中 n是正整数。这种定位防止声信号的反射显着地降低接收的信号。声信号有利地采用脉冲整形来进一步提高系统性能。为了增强数据传输速率，声接收机有利地包括补偿信号色散和符号间干扰的均衡器，同时最小化诸如加性噪声和信道非线性的其它形式的信号损坏。均衡器优选地是也可以是分数间隔的自适应非线性均衡器。这种均衡器消除了允许信号反射消失的间隔间隔的任何要求。所得到的系统能够获得更高的数据速率。当采用纠错码时，不会产生可靠性损失。

10. 发明授权

US07210555B2 Low frequency acoustic attenuator for use in downhole applications 有权
标题翻译：低频声衰减器用于井下应用
公开(公告)号：US07210555B2
公开(公告)日：2007-05-01
申请号：US10882915
申请日：2004-06-30
申请人： Vimal V. Shah , Eugene J. Linyaev , Donald G. Kyle , Wallace R. Gardner
发明人： Vimal V. Shah , Eugene J. Linyaev , Donald G. Kyle , Wallace R. Gardner
IPC分类号： F16F15/02 , F16F7/00 , G01V1/04 , G01V1/16
CPC分类号： E21B47/16 , G01V1/523
摘要： An acoustic attenuator includes a housing having an inner side surface which defines an interior chamber and at least one dampening member both physically and acoustically coupled to the housing and projecting into the interior chamber. Acoustic energy propagating within the housing is deflected into the dampening members for acoustically dispersal within the interior chamber. In various aspects thereof, the dampening members may include one or a group of two or more generally cylindrical sleeves having one end both physically and acoustically coupled to the housing and a second end projecting into the interior chamber. Preferably, when a group of two or more cylindrical sleeves are employed, the sleeves are nested within one another. The dampening members may further include a second, oppositely disposed, group of two or more acoustic attenuators nested within one another and interdigitated with the first group of cylindrical sleeves.
摘要翻译：声衰减器包括壳体，该壳体具有限定内腔的内侧表面和至少一个阻尼构件，物理和声学耦合到壳体并突出到内腔中。在壳体内传播的声能被偏转到阻尼构件中，用于在内腔内声扩散。在其各个方面，阻尼构件可以包括一个或一组两个或更多个大致圆柱形的套筒，其中一个端部物理上和声学上耦合到壳体，第二端突出到内部腔室中。优选地，当使用一组两个或更多个圆柱形套筒时，套筒彼此嵌套。阻尼构件还可以包括彼此嵌套的两个或更多个声衰减器的第二相对设置的组，并与第一组圆柱形套筒相互指向。

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