公开(公告)号：US20140269188A1

公开(公告)日：2014-09-18

申请号：US14217160

申请日：2014-03-17

Applicant: XACT Downhole Telemetry, Inc.

Inventor： John-Peter van Zelm ,  Celine J. Martineau

IPC: H04L1/16 ,  E21B47/14 ,  H04L12/26

CPC classification number: H04L1/1657 ,  E21B47/12 ,  H04L43/08 ,  H04L43/0817 ,  H04L43/0835 ,  H04L43/0852

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.

Abstract translation: 强大的网络遥测中继系统利用数据传播的中继器结构和传输和接收双向性来提高网络的鲁棒性。 例如，创建多个感知的接收尝试，而不需要额外的开销。 可以配置系统，其中节点“听到”形成隐含确认（“Ack”）的相邻和非相邻节点的传输，并且始发节点可以重传直到隐含的确认（“Ack”）被“听到”，表示成功 链路继电器 隐式确认可以应用于双向网络，双向操作可以使网络中的所有节点能够知道所有其他节点的状态。

公开(公告)号：WO2015134030A1

公开(公告)日：2015-09-11

申请号：PCT/US2014/021356

申请日：2014-03-06

Applicant: XACT DOWNHOLE TELEMETRY, INC. ,  VAN ZELM, John-Peter

Inventor： VAN ZELM, John-Peter

IPC: E21B47/12

CPC classification number: E21B47/18 ,  E21B47/122 ,  E21B47/16

Abstract: A downhole repeater network timing system for a drilling rig including a drillstring extending subsurface downwardly from a surface wellhead. The system includes a node located at the drillstring lower end and including a sensor adapted for providing a signal data set output corresponding to downhole drilling conditions. Multiple nodes are located downhole between the Bottom Hole Assembly (BHA) and the wellhead and are associated with the drillstring. The nodes are adapted for receiving and transmitting the signals. The timing control system is adapted for controlling all times within a timeframe according to pre-configured constants known to all nodes. A downhole low rate linear repeater network timing method uses the system.

Abstract translation: 一种用于钻机的井下中继器网络定时系统，其包括从表面井口向下延伸的钻柱。 该系统包括位于钻柱下端的节点，并且包括适于提供对应于井下钻井条件的信号数据组输出的传感器。 多个节点位于底孔组件（BHA）和井口之间的井下，并与钻柱相关联。 节点适于接收和发送信号。 时序控制系统适用于根据所有节点已知的预先配置的常数在一段时间内控制所有时间。 井下低速线性中继器网络定时方法使用该系统。

公开(公告)号：WO2014145848A3

公开(公告)日：2014-11-13

申请号：PCT/US2014030682

申请日：2014-03-17

Applicant: XACT DOWNHOLE TELEMETRY INC ,  VAN ZELM JOHN-PETER

Inventor： VAN ZELM JOHN-PETER

IPC: E21B47/12

CPC classification number: E21B47/12 ,  E21B47/14

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: 遥测系统产生，发送和接收来自对应于收发信台的网络节点的信号集。 利用中继器调度和其他干扰缓解技术来同时从多个节点进行发送，同时使网络退化最小化。 更新间隔/速率和网络吞吐量由此被固定，而不管网络节点的数量如何，并且使用该系统提供网络遥测方法。

公开(公告)号：WO2014145969A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/030831

申请日：2014-03-17

Applicant: XACT DOWNHOLE TELEMETRY, INC. ,  VAN ZELM, John-Peter ,  MARTINEAU, Celine, J.

Inventor： VAN ZELM, John-Peter ,  MARTINEAU, Celine, J.

IPC: G01V3/18

CPC classification number: H04L1/1657 ,  E21B47/12 ,  H04L43/08 ,  H04L43/0817 ,  H04L43/0835 ,  H04L43/0852

Abstract: A robust network telemetry repeater system exploits the repeater structure of data propagation and transmission and reception bidirectionality 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.

Abstract translation: 强大的网络遥测中继系统利用数据传播的中继器结构和发送和接收双向性来增加网络的鲁棒性。 例如，创建多个感知的接收尝试，而不需要额外的开销。 可以配置系统，其中节点“听到”形成隐式确认（“Acks”）的相邻和非相邻节点的传输，并且始发节点可以重传直到隐含的确认（“Ack”）被“听到”，表示成功 链路继电器 隐式确认可以应用于双向网络，双向操作可以使网络中的所有节点能够知道所有其他节点的状态。

公开(公告)号：WO2014121403A1

公开(公告)日：2014-08-14

申请号：PCT/CA2014/050087

申请日：2014-02-07

Applicant: XACT DOWNHOLE TELEMETRY INC.

Inventor： MCRORY, John Godfrey

IPC: E21B47/14 ,  B06B1/06

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。

公开(公告)号：WO2011133399A1

公开(公告)日：2011-10-27

申请号：PCT/US2011/032532

申请日：2011-04-14

Applicant: XACT DOWNHOLE TELEMETRY, INC. ,  CAMWELL, Paul, L ,  WHALEN, David, D.

Inventor： CAMWELL, Paul, L ,  WHALEN, David, D.

IPC: G01V3/00

CPC classification number: E21B17/003

Abstract: A generally three-part EM gap sub comprising a first conductive cylinder incorporating a male tapered threaded section, a second conductive cylinder incorporating female tapered threaded section, both axially aligned and threaded into each other is described. One or both tapers incorporate slots whereby non-conductive inserts may be placed before assembly of the cylinders. The inserts are designed to cause the thread roots, crests and sides of the tapered sections of both cylinders to be spatially separated. The cylinders can be significantly torqued, one into the other, while maintaining an annular separation and therefore electrical separation as part of the assembly procedure. The co-joined coaxial cylinders can be placed into an injection moulding machine wherein a high performance thermoplastic is injected into the annular space, thereby forming both an insulative gap (the third part) and a strong joint between the cylinders in the newly created EM gap sub.

Abstract translation: 描述了一个通常为三部分的EM间隙子，包括一个包含一个凸形锥形螺纹部分的第一导电圆柱体，一个包含内锥形螺纹部分的第二导电圆柱体，两个轴向对齐并相互螺纹连接。 一个或两个锥体包括槽，由此在组装气缸之前可以放置非导电插入件。 插入件被设计成使得两个圆柱体的锥形部分的螺纹根部，顶部和侧面在空间上分离。 气缸可以明显扭转，另一方面是保持环形分离，因此作为组装过程的一部分进行电气分离。 共同的同轴圆筒可以放置在注塑机中，其中将高性能热塑性塑料注入到环形空间中，从而在新创建的EM间隙中形成绝缘间隙（第三部分）和气缸之间的牢固接头 子。

公开(公告)号：US10060255B2

公开(公告)日：2018-08-28

申请号：US15285367

申请日：2016-10-04

Applicant: XACT Downhole Telemetry, Inc.

Inventor： John-Peter van Zelm

IPC: E21B47/16 ,  E21B47/12 ,  E21B17/00 ,  E21B17/02 ,  G01V1/26 ,  E21B17/20 ,  E21B43/04 ,  E21B43/26

CPC classification number: E21B47/122 ,  E21B17/003 ,  E21B17/028 ,  E21B17/20 ,  E21B43/04 ,  E21B43/26 ,  E21B47/12 ,  E21B47/16 ,  G01V1/26

Abstract: A downhole repeater network timing system for a drilling rig including a drillstring extending subsurface downwardly from a surface wellhead. The system includes a node located at the drillstring lower end and including a sensor adapted for providing a signal data set output corresponding to downhole drilling conditions. Multiple nodes are located downhole between the Bottom Hole Assembly (BHA) and the wellhead and are associated with the drillstring. The nodes are adapted for receiving and transmitting the signals. The timing control system is adapted for controlling all times within a timeframe according to pre-configured constants known to all nodes. A downhole low rate linear repeater network timing method uses the system.

公开(公告)号：US20170022805A1

公开(公告)日：2017-01-26

申请号：US15285367

申请日：2016-10-04

Applicant: XACT Downhole Telemetry, Inc.

Inventor： John-Peter van Zelm

IPC: E21B47/12 ,  E21B17/00 ,  G01V1/26 ,  E21B17/20 ,  E21B43/04 ,  E21B43/26 ,  E21B47/16 ,  E21B17/02

CPC classification number: E21B47/122 ,  E21B17/003 ,  E21B17/028 ,  E21B17/20 ,  E21B43/04 ,  E21B43/26 ,  E21B47/12 ,  E21B47/16 ,  G01V1/26

Abstract: A downhole repeater network timing system for a drilling rig including a drillstring extending subsurface downwardly from a surface wellhead. The system includes a node located at the drillstring lower end and including a sensor adapted for providing a signal data set output corresponding to downhole drilling conditions. Multiple nodes are located downhole between the Bottom Hole Assembly (BHA) and the wellhead and are associated with the drillstring. The nodes are adapted for receiving and transmitting the signals. The timing control system is adapted for controlling all times within a timeframe according to pre-configured constants known to all nodes. A downhole low rate linear repeater network timing method uses the system.

Abstract translation: 一种用于钻机的井下中继器网络定时系统，其包括从表面井口向下延伸的钻柱。 该系统包括位于钻柱下端的节点，并且包括适于提供对应于井下钻井条件的信号数据组输出的传感器。 多个节点位于底孔组件（BHA）和井口之间的井下，并与钻柱相关联。 节点适于接收和发送信号。 时序控制系统适用于根据所有节点已知的预先配置的常数在一段时间内控制所有时间。 井下低速线性中继器网络定时方法使用该系统。

公开(公告)号：US09458711B2

公开(公告)日：2016-10-04

申请号：US14094417

申请日：2013-12-02

Applicant: Xact Downhole Telemetry, Inc.

Inventor： John-Peter van Zelm

IPC: E21B47/16 ,  E21B47/12 ,  E21B17/00 ,  E21B17/02 ,  G01V1/26

CPC classification number: E21B47/122 ,  E21B17/003 ,  E21B17/028 ,  E21B17/20 ,  E21B43/04 ,  E21B43/26 ,  E21B47/12 ,  E21B47/16 ,  G01V1/26

Abstract: A downhole repeater network timing system for a drilling rig including a drillstring extending subsurface downwardly from a surface wellhead. The system includes a node located at the drillstring lower end and including a sensor adapted for providing a signal data set output corresponding to downhole drilling conditions. Multiple nodes are located downhole between the Bottom Hole Assembly (BHA) and the wellhead and are associated with the drillstring. The nodes are adapted for receiving and transmitting the signals. The timing control system is adapted for controlling all times within a timeframe according to pre-configured constants known to all nodes. A downhole low rate linear repeater network timing method uses the system.

Abstract translation: 一种用于钻机的井下中继器网络定时系统，其包括从表面井口向下延伸的钻柱。 该系统包括位于钻柱下端的节点，并且包括适于提供对应于井下钻井条件的信号数据组输出的传感器。 多个节点位于底孔组件（BHA）和井口之间的井下，并与钻柱相关联。 节点适于接收和发送信号。 时序控制系统适用于根据所有节点已知的预先配置的常数在一段时间内控制所有时间。 井下低速线性中继器网络定时方法使用该系统。

公开(公告)号：WO2017147721A1

公开(公告)日：2017-09-08

申请号：PCT/CA2017/050298

申请日：2017-03-03

Applicant: XACT DOWNHOLE TELEMETRY INC.

Inventor： MCRORY, John Godfrey

IPC: E21B47/16

Abstract: Methods, systems, and techniques for controlling voltage applied across a piezoelectric stack of a downhole acoustic transmitter. At least one of the temperature of the stack and the compressive stress applied to the stack is monitored. At least one of the temperature of the stack and the compressive stress applied to the stack is compared to a temperature threshold and a stress threshold, respectively. When the stack signal is an alternating voltage signal and when at least one of the temperature of the stack and the compressive stress applied to the stack respectively exceeds the temperature threshold and the stress threshold, the stack signal is modified such that a negative polarity portion of the stack signal has a maximum magnitude less than a magnitude of a negative polarity limit.

Abstract translation: 用于控制施加在井下声学发射器的压电叠堆上的电压的方法，系统和技术。 监测堆叠的温度和施加到堆叠的压缩应力中的至少一个。 将堆叠的温度和施加到堆叠的压缩应力中的至少一个分别与温度阈值和应力阈值进行比较。 当堆叠信号是交流电压信号并且当堆叠的温度和施加到堆叠的压缩应力中的至少一个分别超过温度阈值和应力阈值时，堆叠信号被修改，使得堆叠信号的负极性部分 堆栈信号的最大幅度小于负极限的幅度。