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公开(公告)号：WO2010145005A1
公开(公告)日：2010-12-23
申请号：PCT/CA2010/000887
申请日：2010-06-15
Applicant: XACT DOWNHOLE TELEMETRY, INC. , CAMWELL, Paul L.
Inventor： CAMWELL, Paul L.
Abstract: A system and method of optimizing air hammer performance in a well drilling rig whereby an electronic acoustic receiver (EAR) is used to monitor the effects of changing any of the operating parameters under his or her control. The signals are visually presented to the drill operator based on an EAR's output, along with current settings, allowing the drill operator to dial in the parameters of his or her choice until the optimal frequency of the air hammer is regained. The visual output displays the amplitude response of acoustic waves being detected and decoded at the surface by the EAR. The drill operator can observe and use this information to determine the changes necessary in the operating parameters to return the hammer to optimal frequency, and thus optimal performance.
Abstract translation: 一种优化钻井钻机中的气锤性能的系统和方法，其中使用电子声学接收器（EAR）来监测在他或她的控制下改变任何操作参数的影响。 信号根据EAR的输出以及当前设置以视觉方式呈现给钻机操作员，允许钻头操作者拨打他或她选择的参数，直到重新获得气锤的最佳频率。 视觉输出显示由EAR在表面检测和解码的声波的振幅响应。 钻头操作者可以观察和使用该信息来确定操作参数中所需的更改以将锤返回到最佳频率，从而确定最佳性能。
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公开(公告)号：US10103846B2
公开(公告)日：2018-10-16
申请号：US14217160
申请日：2014-03-17
Applicant: XACT Downhole Telemetry, Inc.
Inventor： John-Peter van Zelm , Celine J. Martineau
Abstract: A robust network telemetry repeater system exploits the repeater structure of data propagation and transmission and reception bi-directionality to increase network robustness. For example, multiple perceived receive attempts are created with no additional overhead. The system can be configured whereby nodes “hear” the transmissions of both adjacent and non-adjacent nodes forming implicit acknowledgement (“Acks”), and originating nodes can retransmit until implicit acknowledgments (“Acks”) are “heard,” indicating a successful link relay. Implicit acknowledgment can be applied to bidirectional networks, and bidirectional action can enable all nodes in the network to know the status of all other nodes.
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23.发明申请公开(公告)号：US20150377017A1
公开(公告)日：2015-12-31
申请号：US14766421
申请日：2014-02-07
Applicant: XACT DOWNHOLE TELEMETRY INC.
Inventor： John Godfrey McRory
IPC: E21B47/16
CPC classification number: E21B47/16 , B06B1/0215 , B06B2201/55 , B06B2201/73 , E21B47/14
Abstract: An acoustic transmitter for transmitting an acoustic signal through a downhole medium includes a voltage source; a composite load; and switching circuitry that applies voltage from the voltage source across the composite load in response to a drive signal. The composite load includes charge control circuitry, in the form of at least one inductor, connected electrically in series with a piezoelectric transducer that may be electrically modeled as a capacitor.
Abstract translation: 用于通过井下介质发送声信号的声发射器包括电压源; 复合载荷 以及响应于驱动信号，从电压源跨复合负载施加电压的开关电路。 复合负载包括以至少一个电感器的形式的电荷控制电路，该电感器与可被电气建模为电容器的压电换能器电串联连接。
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公开(公告)号：US20150192010A1
公开(公告)日：2015-07-09
申请号：US14660833
申请日：2015-03-17
Applicant: XACT Downhole Telemetry, Inc.
Inventor： Paul L. Camwell , David D. Whalen , Douglas S. Drumheller
IPC: E21B47/16
CPC classification number: E21B47/16 , E21B47/12 , E21B47/14 , G01V11/002 , G10K11/16 , G10K11/162 , G10K11/168
Abstract: A stacked-ring, slow-wave acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the acoustic isolator behaving such that a “down” wave propagated toward the isolator is reflected back substantially in phase with an “up” wave propagated from the acoustic wave source away from the isolator. The acoustic isolator is similarly effective in reflecting “up” propagating waves originating from below the isolator, hence further protecting the acoustic wave source from possible deleterious interference. It causes substantially all of the emitted wave energy to travel in a chosen direction along the drill pipe, thus aiding the efficiency of acoustic telemetry said pipe.
Abstract translation: 叠层环，慢波声学遥测隔离系统和方法，用于管状组件，例如钻杆或包括声波发射器的生产管道，声隔离器的行为使得朝向隔离器传播的“向下”波被大体上反射回 同时具有从声波源远离隔离器传播的“向上”波。 声隔离器在反射从隔离器下方产生的“向上”传播波同样有效，因此进一步保护声波源免受可能的有害干扰。 它引起基本上所有发射的波能量沿着钻杆沿所选择的方向行进，从而有助于声学遥测所述管道的效率。
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公开(公告)号：US20140266769A1
公开(公告)日：2014-09-18
申请号：US14215617
申请日：2014-03-17
Applicant: Xact Downhole Telemetry, Inc.
Inventor： John-Peter van Zelm
Abstract: A telemetry system produces, transmits and receives signal sets from network nodes, which correspond to transceiver stations. Repeater scheduling and other interference mitigating techniques are utilized to simultaneously transmit from multiple nodes with minimized network degradation. Update interval/rate and network throughput are thereby fixed regardless of the number of network nodes and a network telemetry method is provided using the system.
Abstract translation: 遥测系统从对应于收发台的网络节点产生，发送和接收信号集。 中继器调度和其他干扰减轻技术被用于以最小化的网络劣化从多个节点同时发送。 无论网络节点的数量如何，都能够更新间隔/速率和网络吞吐量，并且使用该系统提供网络遥测方法。
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Patent Agency Ranking
公开(公告)号：US20140112100A1
公开(公告)日：2014-04-24
申请号：US14144333
申请日：2013-12-30
Applicant: Xact Downhole Telemetry, Inc.
Inventor： Paul L. Camwell , James M. Neff
IPC: E21B47/16
Abstract: A system and method of optimizing air hammer performance in a well drilling rig whereby an electronic acoustic receiver (EAR) is used to monitor the effects of changing any of the operating parameters under his or her control. The signals are visually presented to the drill operator based on an EAR's output, along with current settings, allowing the drill operator to dial in the parameters of his or her choice until the optimal frequency of the air hammer is regained. The visual output displays the amplitude response of acoustic waves being detected and decoded at the surface by the EAR. The drill operator can observe and use this information to determine the changes necessary in the operating parameters to return the hammer to optimal frequency, and thus optimal performance.
Abstract translation: 一种优化钻井钻机中的气锤性能的系统和方法，其中使用电子声学接收器（EAR）来监测在他或她的控制下改变任何操作参数的影响。 信号根据EAR的输出以及当前设置以视觉方式呈现给钻机操作员，允许钻头操作者拨打他或她选择的参数，直到重新获得气锤的最佳频率。 视觉输出显示由EAR在表面检测和解码的声波的振幅响应。 钻头操作者可以观察和使用该信息来确定操作参数中所需的更改以将锤返回到最佳频率，从而确定最佳性能。
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公开(公告)号：CA2692937C
公开(公告)日：2017-09-26
申请号：CA2692937
申请日：2010-02-15
Applicant: XACT DOWNHOLE TELEMETRY INC
Inventor： CAMWELL PAUL L , WHALEN DAVID D , DRUMHELLER DOUGLAS S
Abstract: A stacked-ring, slow-wave acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the acoustic isolator behaving such that a "down" wave propagated toward the isolator is reflected back substantially in phase with an "up" wave propagated from the acoustic wave source away from the isolator. The acoustic isolator is similarly effective in reflecting "up" propagating waves originating from below the isolator, hence further protecting the acoustic wave source from possible deleterious interference. It causes substantially all of the emitted wave energy to travel in a chosen direction along the drill pipe, thus aiding the efficiency of acoustic telemetry said pipe.
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公开(公告)号：CA2692907C
公开(公告)日：2017-09-05
申请号：CA2692907
申请日：2010-02-12
Applicant: XACT DOWNHOLE TELEMETRY INC
Inventor： CAMWELL PAUL L , WHALEN DAVID D , MCRORY JOHN G , NEFF JAMES M
IPC: E21B47/022 , E21B43/30
Abstract: A system and method of closed loop control whereby groupings of surface sonic transmitters disposed along the planned path of a well send sonic wave energy to a downhole sonic receiver (or alternatively a downhole sonic transmitter signalling to grouping of surface sonic receivers) in a manner that facilitates the downhole positioning of the well. Subsequent offset well positioning, relative to the first well, may be achieved in a similar manner.
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公开(公告)号：BR112015021100A2
公开(公告)日：2017-07-18
申请号：BR112015021100
申请日：2014-02-28
Applicant: XACT DOWNHOLE TELEMETRY INC
Inventor： MICHAEL REEVES , PAUL CAMWELL
IPC: E21B47/09
Abstract: resumo patente de invenção: "ferramenta de posicionamento de intervalo para uso dentro de uma coluna de revestimento ou de revestimento interno". trata-se de um método para detectar uma posição em interior de buraco em um furo de poço compreende: fornecer um conjunto de emissores de sinal, sendo que cada emissor de sinal no conjunto é fixado a uma posição diferente no furo de poço e cada emissor de sinal é configurado para emitir um sinal que tem uma característica única; e fornecer uma ferramenta de medição que compreende um detector de sinal configurado para detectar os sinais diferentes e um dispositivo de rotação configurado para contatar, de modo giratório, uma parede do furo de poço. a ferramenta de medição é movida através do furo de poço e uma ou mais posições da ferramenta de medição no furo de poço são determinadas detectando-se um ou mais dos sinais e identificando-se a posição de um ou mais dos emissores de sinal pela característica única de cada sinal detectado, e detectando-se o número de rotações em uma roda de determinação de intervalo do detector de rotação que contata o furo de poço.
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公开(公告)号：CA2902670A1
公开(公告)日：2014-09-04
申请号：CA2902670
申请日：2014-02-28
Applicant: XACT DOWNHOLE TELEMETRY INC
Inventor： CAMWELL PAUL L , REEVES MICHAEL
IPC: E21B47/09
Abstract: A method for detecting a downhole position in a wellbore comprises: providing a set of signal emitters, each signal emitter in the set attached to a different position in the wellbore and each signal emitter configured to emit a signal having a unique characteristic; and providing a measurement tool comprising a signal detector configured to detect the different signals and a rotation device configured to rotatably contact a wall of the wellbore. The measurement tool is moved through the wellbore and one or more positions of the measurement tool in the wellbore is determined by detecting one or more of the signals and identifying the position of one or more of the signal emitters by the unique characteristic of each detected signal, and by detecting the number of rotations in a ranging wheel of the rotation detector that contacts the wellbore.
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