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    Downhole transmission system comprising a coaxial capacitor
    2.
    发明申请
    Downhole transmission system comprising a coaxial capacitor 有权
    井下传输系统包括同轴电容器

    公开(公告)号：US20070126596A1

    公开(公告)日：2007-06-07

    申请号：US11626070

    申请日：2007-01-23

    申请人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  H. Hall ,  Michael Rawle

    发明人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  H. Hall ,  Michael Rawle

    IPC分类号： G01V3/00

    CPC分类号： H04B5/0018 ,  E21B17/028 ,  E21B47/122 ,  F16L25/01 ,  H01R13/005 ,  H01R13/533 ,  H01R24/40 ,  H01R2103/00 ,  H04B5/0012

    摘要： A transmission system in a downhole component comprises a plurality of data transmission elements. A coaxial cable having an inner conductor and an outer conductor is disposed within a passage in the downhole component such that at least one capacitor is disposed in the passage and having a first terminal coupled to the inner conductor and a second terminal coupled to the outer conductor. Preferably the transmission element comprises an electrically conducting coil. Preferably, within the passage a connector is adapted to electrically connect the inner conductor of the coaxial cable and the lead wire. The coaxial capacitor may be disposed between and in electrically communication with the connector and the passage. In another embodiment a connector is adapted to electrical connect a first and a second portion of the inner conductor of the coaxial cable and a coaxial capacitor is in electrical communication with the connector and the passage.

    摘要翻译： 井下部件中的传输系统包括多个数据传输元件。 具有内部导体和外部导体的同轴电缆设置在井下部件中的通道内，使得至少一个电容器设置在通道中并且具有耦合到内部导体的第一端子和耦合到外部导体的第二端子 。 优选地，传输元件包括导电线圈。 优选地，在通道内，连接器适于电连接同轴电缆的内导体和导线。 同轴电容器可以设置在连接器和通道之间并且与连接器和通道电连通。 在另一个实施例中，连接器适于电连接同轴电缆的内导体的第一部分和第二部分，并且同轴电容器与连接器和通道电连通。

    Downhole transmission system comprising a coaxial capacitor
    3.
    发明申请
    Downhole transmission system comprising a coaxial capacitor 审中-公开
    井下传输系统包括同轴电容器

    公开(公告)号：US20050285706A1

    公开(公告)日：2005-12-29

    申请号：US10878242

    申请日：2004-06-28

    申请人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  H. Hall ,  Michael Rawle

    发明人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  H. Hall ,  Michael Rawle

    IPC分类号： E21B17/02 ,  E21B47/12 ,  F16L25/01 ,  H01F21/06 ,  H01R13/00 ,  H01R13/533 ,  H01R24/02 ,  H04B5/00

    CPC分类号： H04B5/0018 ,  E21B17/028 ,  E21B47/122 ,  F16L25/01 ,  H01R13/005 ,  H01R13/533 ,  H01R24/40 ,  H01R2103/00 ,  H04B5/0012

    摘要： A transmission system in a downhole component comprises a plurality of data transmission elements. A coaxial cable having an inner conductor and an outer conductor is disposed within a passage in the downhole component such that at least one capacitor is disposed in the passage and having a first terminal coupled to the inner conductor and a second terminal coupled to the outer conductor. Preferably the transmission element comprises an electrically conducting coil. Preferably, within the passage a connector is adapted to electrically connect the inner conductor of the coaxial cable and the lead wire. The coaxial capacitor may be disposed between and in electrically communication with the connector and the passage. In another embodiment a connector is adapted to electrical connect a first and a second portion of the inner conductor of the coaxial cable and a coaxial capacitor is in electrical communication with the connector and the passage.

    摘要翻译： 井下部件中的传输系统包括多个数据传输元件。 具有内部导体和外部导体的同轴电缆设置在井下部件中的通道内，使得至少一个电容器设置在通道中并且具有耦合到内部导体的第一端子和耦合到外部导体的第二端子 。 优选地，传输元件包括导电线圈。 优选地，在通道内，连接器适于电连接同轴电缆的内导体和导线。 同轴电容器可以设置在连接器和通道之间并且与连接器和通道电连通。 在另一个实施例中，连接器适于电连接同轴电缆的内导体的第一部分和第二部分，并且同轴电容器与连接器和通道电连通。

    Method and System for Downhole Clock Synchronization
    4.
    发明申请
    Method and System for Downhole Clock Synchronization 有权
    井下时钟同步方法与系统

    公开(公告)号：US20050035875A1

    公开(公告)日：2005-02-17

    申请号：US10710875

    申请日：2004-08-10

    申请人： David Hall ,  David Bartholomew ,  Monte Johnson ,  Justin Moon ,  Roger Koehler

    发明人： David Hall ,  David Bartholomew ,  Monte Johnson ,  Justin Moon ,  Roger Koehler

    IPC分类号： H04H60/31 ,  G01V11/00 ,  G01V1/00

    CPC分类号： E21B47/12 ,  G01V1/26 ,  G01V11/002

    摘要： A method and system for use in synchronizing at least two clocks in a downhole network are disclosed. The method comprises determining a total signal latency between a controlling processing element and at least one downhole processing element in a downhole network and sending a synchronizing time over the downhole network to the at least one downhole processing element adjusted for the signal latency. Electronic time stamps may be used to measure latency between processing elements. A system for electrically synchronizing at least two clocks connected to a downhole network comprises a controlling processing element connected to a synchronizing clock in communication over a downhole network with at least one downhole processing element comprising at least one downhole clock. Preferably, the downhole network is integrated into a downhole tool string.

    摘要翻译： 公开了一种用于在井下网络中同步至少两个时钟的方法和系统。 该方法包括确定控制处理元件与井下网络中的至少一个井下处理元件之间的总信号等待时间，并且将井下网络上的同步时间发送到针对信号等待时间调整的至少一个井下处理元件。 电子时间戳可用于测量处理元件之间的延迟。 一种用于电气同步连接到井下网络的至少两个时钟的系统包括连接到通过井下网络进行通信的同步时钟的控制处理元件，其中至少一个井下处理元件包括至少一个井下时钟。 优选地，井下网络被集成到井下工具串中。

    Apparatus for Regulating Bandwidth
    6.
    发明申请
    Apparatus for Regulating Bandwidth 审中-公开
    用于调节带宽的装置

    公开(公告)号：US20060256718A1

    公开(公告)日：2006-11-16

    申请号：US10908532

    申请日：2005-05-16

    申请人： David Hall ,  Monte Johnson ,  David Bartholomew ,  Roger Koehler

    发明人： David Hall ,  Monte Johnson ,  David Bartholomew ,  Roger Koehler

    IPC分类号： H04L12/26

    CPC分类号： H04L5/14 ,  H04L47/10 ,  H04L47/20 ,  H04L47/263 ,  H04L47/32

    摘要： An apparatus comprises a modem intermediate and in communication with a plurality of data sources within the apparatus and a network external to the apparatus. The apparatus further comprises one of a plurality of bandwidth regulators intermediate and in communication with each data source and the modem. Each bandwidth regulator comprises a transmission limit and is adapted to limit data transmission from the data source to the modem. A method for regulating bandwidth usage by data sources in a node in a downhole network along a downhole tool string is also disclosed. The method comprises providing a modem, providing a bandwidth regulator, setting a transmission limit within each bandwidth regulator, and limiting a rate of data transmission. The modem is intermediate and in communication with a plurality of data sources and the downhole network, and the bandwidth regulator is intermediate and in communication with each data source and the modem.

    摘要翻译： 一种装置包括调制解调器中间并与设备内的多个数据源通信，以及设备外部的网络。 该装置还包括多个带宽调节器之一，其中每个数据源和调制解调器之间中间并与之通信。 每个带宽调节器包括传输限制，并且适于限制从数据源到调制解调器的数据传输。 还公开了一种用于沿着井下工具串来调节井下网络中的节点中的数据源的带宽使用的方法。 该方法包括提供调制解调器，提供带宽调节器，在每个带宽调节器内设置传输限制，以及限制数据传输速率。 调制解调器是中间的并且与多个数据源和井下网络通信，并且带宽调节器是中间的并且与每个数据源和调制解调器通信。

    Apparatus and method for adjusting bandwidth allocation in downhole drilling networks
    7.
    发明申请
    Apparatus and method for adjusting bandwidth allocation in downhole drilling networks 审中-公开
    调整井下钻井网络带宽分配的装置和方法

    公开(公告)号：US20060062249A1

    公开(公告)日：2006-03-23

    申请号：US10878145

    申请日：2004-06-28

    申请人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  H. Hall ,  Marshall Soares

    发明人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  H. Hall ,  Marshall Soares

    IPC分类号： H04J3/22

    CPC分类号： E21B47/12

    摘要： A high-speed downhole network providing real-time data from downhole components of a drilling strings includes a bottom-hole node interfacing to a bottom-hole assembly located proximate the bottom end of a drill string. A top-hole node is connected proximate the top end of the drill string. One or several intermediate nodes are located along the drill string between the bottom-hole node and the top-hole node. The downhole network is configured to include a data rate adjustment module to monitor network traffic traveling in both uphole and downhole directions. The data rate adjustment module is configured to optimize network settings and efficiency by adjusting the allocation of available network bandwidth for data traffic traveling uphole and downhole.

    摘要翻译： 提供来自钻井井下部件的实时数据的高速井下网络包括与位于钻柱底端附近的底孔组件对接的底孔节点。 顶孔节点靠近钻柱的顶端连接。 一个或多个中间节点位于井下节点和顶孔节点之间的钻柱上。 井下网络被配置为包括数据速率调整模块以监视在井下和井下方向上行进的网络业务。 数据速率调整模块被配置为通过调整上行和下行的数据流量的可用网络带宽分配来优化网络设置和效率。