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。

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。

公开(公告)号：US20050212530A1

公开(公告)日：2005-09-29

申请号：US10708775

申请日：2004-03-24

申请人： David Hall ,  H. Hall ,  David Pixton ,  Michael Rawle ,  David Bartholomew ,  Marshall Soares

发明人： David Hall ,  H. Hall ,  David Pixton ,  Michael Rawle ,  David Bartholomew ,  Marshall Soares

IPC分类号： E21B47/12 ,  G01R27/04 ,  G01R31/02

CPC分类号： G01R31/026 ,  E21B47/122

摘要： A method and apparatus for testing electromagnetic connectivity in a drill string are disclosed. The method includes transmitting a test signal down a transmission path in a drill string; receiving a reflection of the test signal; and determining from the reflection whether there is an interruption in the electromagnetic connectivity in the transmission path. In general, the apparatus includes a signal generator for generating a test signal into the drill string; a receiver for receiving the reflection of the test signal; and means for determining from the reflection whether there is an interruption in the electromagnetic connectivity in the transmission path. Preferably, a common coil is included through which the test signal generated by the signal generator may be transmitted into a drill string and through which a reflection of the test signal may be received.

摘要翻译： 公开了一种用于测试钻柱中的电磁连接的方法和装置。 该方法包括将测试信号沿着钻柱中的传输路径发送; 接收测试信号的反射; 并根据反射来确定传输路径中的电磁连接是否存在中断。 通常，该装置包括用于产生测试信号到钻柱中的信号发生器; 用于接收测试信号的反射的接收器; 以及用于根据反射确定传输路径中的电磁连接是否存在中断的装置。 优选地，包括公共线圈，由信号发生器产生的测试信号可以被传输到钻柱中，并且可以接收测试信号的反射。

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。

公开(公告)号：US20050285645A1

公开(公告)日：2005-12-29

申请号：US10878147

申请日：2004-06-28

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

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

IPC分类号： H03K21/00 ,  H03K23/52

CPC分类号： H03K23/52 ,  G01V11/002 ,  H04J3/0661

摘要： A precise downhole clock that compensates for drift includes a prescaler configured to receive electrical pulses from an oscillator. The prescaler is configured to output a series of clock pulses. The prescaler outputs each clock pulse after counting a preloaded number of electrical pulses from the oscillator. The prescaler is operably connected to a compensator module for adjusting the number loaded into the prescaler. By adjusting the number that is loaded into the prescaler, the timing may be advanced or retarded to more accurately synchronize the clock pulses with a reference time source. The compensator module is controlled by a counter-based trigger module configured to trigger the compensator module to load a value into the prescaler. Finally, a time-base logic module is configured to calculate the drift of the downhole clock by comparing the time of the downhole clock with a reference time source.

摘要翻译： 补偿漂移的精确井下时钟包括配置为从振荡器接收电脉冲的预分频器。 预分频器配置为输出一系列时钟脉冲。 在从振荡器计数预加载数量的电脉冲之后，预分频器输出每个时钟脉冲。 预分频器可操作地连接到补偿器模块，用于调节加载到预分频器中的数量。 通过调整加载到预分频器中的数字，定时可以提前或延迟，以更准确地将时钟脉冲与参考时间源同步。 补偿器模块由基于计数器的触发模块控制，配置为触发补偿器模块将值加载到预分频器中。 最后，时基逻辑模块被配置为通过将井下时钟与参考时间源进行比较来计算井下时钟的漂移。

公开(公告)号：US20050046586A1

公开(公告)日：2005-03-03

申请号：US10710825

申请日：2004-08-05

申请人： David Hall ,  David Pixton ,  Michael Briscoe ,  Kline Bradford ,  Michael Rawle ,  David Bartholomew ,  James McPherson

发明人： David Hall ,  David Pixton ,  Michael Briscoe ,  Kline Bradford ,  Michael Rawle ,  David Bartholomew ,  James McPherson

IPC分类号： G01V11/00 ,  G01V3/00

CPC分类号： G01V11/002 ,  Y10T403/17 ,  Y10T403/32213

摘要： A swivel assembly for a downhole tool string comprises a first and second coaxial housing cooperatively arranged. The first housing comprises a first transmission element in communication with surface equipment. The second housing comprises a second transmission element in communication with the first transmission element. The second housing further comprises a third transmission element adapted for communication with a network integrated into the downhole tool string. The second housing may be rotational and adapted to transmit a signal between the downhole network and the first housing. Electronic circuitry is in communication with at least one of the transmission elements. The electronic circuitry may be externally mounted to the first or second housing. Further, the electronic circuitry may be internally mounted in the second housing. The electronic circuitry may be disposed in a recess in either first or second housing of the swivel.

摘要翻译： 用于井下工具串的旋转组件包括协同地布置的第一和第二同轴壳体。 第一壳体包括与表面设备连通的第一传动元件。 第二壳体包括与第一传动元件连通的第二传动元件。 第二壳体还包括适于与集成在井下工具串中的网络通信的第三传动元件。 第二壳体可以旋转并且适于在井下网络和第一壳体之间传输信号。 电子电路与至少一个传输元件通信。 电子电路可以从外部安装到第一或第二壳体。 此外，电子电路可以内部安装在第二壳体中。 电子电路可以设置在旋转体的第一或第二壳体中的凹部中。

公开(公告)号：US20050284663A1

公开(公告)日：2005-12-29

申请号：US10878243

申请日：2004-06-28

申请人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  Joe Fox

发明人： David Hall ,  David Pixton ,  Monte Johnson ,  David Bartholomew ,  Joe Fox

IPC分类号： E21B47/026 ,  E21B47/12

CPC分类号： E21B47/122

摘要： A method and apparatus for use in assessing down-hole drilling conditions are disclosed. The apparatus includes a drill string, a plurality of sensors, a computing device, and a down-hole network. The sensors are distributed along the length of the drill string and are capable of sensing localized down-hole conditions while drilling. The computing device is coupled to at least one sensor of the plurality of sensors. The data is transmitted from the sensors to the computing device over the down-hole network. The computing device analyzes data output by the sensors and representative of the sensed localized conditions to assess the down-hole drilling conditions. The method includes sensing localized drilling conditions at a plurality of points distributed along the length of a drill string during drilling operations; transmitting data representative of the sensed localized conditions to a predetermined location; and analyzing the transmitted data to assess the down-hole drilling conditions.

摘要翻译： 公开了一种用于评估井下钻井条件的方法和装置。 该装置包括钻柱，多个传感器，计算装置和井下网络。 传感器沿着钻柱的长度分布，并且能够在钻探时感测局部的井下状况。 计算设备耦合到多个传感器中的至少一个传感器。 数据通过井下网络从传感器传输到计算设备。 计算设备分析由传感器输出的数据并代表所感测的局部条件以评估井下钻井条件。 该方法包括在钻井操作期间在沿着钻柱的长度分布的多个点处感测局部钻井条件; 将表示感测到的局部化状态的数据发送到预定位置; 并分析传输的数据以评估井下钻井条件。

公开(公告)号：US20060181364A1

公开(公告)日：2006-08-17

申请号：US10906387

申请日：2005-02-17

申请人： David Hall ,  Michael Rawle ,  David Bartholomew

发明人： David Hall ,  Michael Rawle ,  David Bartholomew

IPC分类号： H01P5/00

CPC分类号： E21B17/028 ,  E21B47/122

摘要： An apparatus for electromagnetically connecting surface equipment to a rotating downhole tool string comprises a plurality of electrical conductors, first and second differential interfaces, and at least one electromagnetic shield. The plurality of electrical conductors have first ends terminating at the surface equipment and second ends terminating at the downhole tool string. The first differential interface is electrically connected to the first ends and the second differential interface is electrically connected to the second ends the electrical conductors. The first and second differential interfaces are adapted to transmit and receive a reference-independent differential signal. The electromagnetic shield surrounds and shields the electrical conductors and is connected to ground at one end. The apparatus is stationary relative to rotation of the tool string. Disclosed is an apparatus for electromagnetically connecting a computer to a rotating downhole tool string comprising a plurality of electrical conductors, first and second differential interfaces, and an electromagnetic shield grounded to a drill rig at one end.

摘要翻译： 用于将表面设备电磁连接到旋转井下工具串的装置包括多个电导体，第一和第二差分接口以及至少一个电磁屏蔽。 多个电导体具有终止于地面设备的第一端和终止于井下工具串的第二端。 第一差分接口电连接到第一端，并且第二差分接口电连接到第二端电导体。 第一和第二差分接口适于发送和接收参考无关差分信号。 电磁屏蔽围绕并屏蔽电导体并且在一端连接到地面。 该装置相对于工具串的旋转是静止的。 公开了一种用于将计算机电磁连接到包括多个电导体，第一和第二差分接口以及在一端接地到钻机的电磁屏蔽的旋转井下工具串的装置。

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。

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。