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1. 发明授权

US07948395B2 Downhole transmission system comprising a coaxial capacitor 有权
标题翻译：井下传输系统包括同轴电容器
公开(公告)号：US07948395B2
公开(公告)日：2011-05-24
申请号：US11626070
申请日：2007-01-23
申请人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , H. Tracy Hall, Jr. , Michael Rawle
发明人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , H. Tracy Hall, Jr. , 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。

2. 发明授权

US07253671B2 Apparatus and method for compensating for clock drift in downhole drilling components 有权
标题翻译：用于补偿井下钻井部件中的时钟漂移的装置和方法
公开(公告)号：US07253671B2
公开(公告)日：2007-08-07
申请号：US10878147
申请日：2004-06-28
申请人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , H. Tracy Hall, Jr.
发明人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , H. Tracy Hall, Jr.
IPC分类号： H03K5/01
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。

3. 发明授权

US07207396B2 Method and apparatus of assessing down-hole drilling conditions 有权
标题翻译：评估井下钻井条件的方法和装置
公开(公告)号：US07207396B2
公开(公告)日：2007-04-24
申请号：US10878243
申请日：2004-06-28
申请人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , Joe Fox
发明人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , Joe Fox
IPC分类号： 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。

4. 发明授权

US07193527B2 Swivel assembly 有权
标题翻译：旋转总成
公开(公告)号：US07193527B2
公开(公告)日：2007-03-20
申请号：US10710825
申请日：2004-08-05
申请人： David R. Hall , David S. Pixton , Michael Briscoe , Kline Bradford , Michael Rawle , David B. Bartholomew , James McPherson
发明人： David R. Hall , David S. Pixton , Michael Briscoe , Kline Bradford , Michael Rawle , David B. Bartholomew , James McPherson
IPC分类号： 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。

5. 发明授权

US07123160B2 Method for triggering an action 有权
标题翻译：触发动作的方法
公开(公告)号：US07123160B2
公开(公告)日：2006-10-17
申请号：US10710878
申请日：2004-08-10
申请人： David R. Hall , David B. Bartholomew , Monte L. Johnson , Justin Moon , Roger O. Koehler
发明人： David R. Hall , David B. Bartholomew , Monte L. Johnson , Justin Moon , Roger O. Koehler
IPC分类号： G01V3/00
CPC分类号： E21B47/12 , G01V1/26 , G01V11/002
摘要： A method for triggering an action of at least one downhole device on a downhole network integrated into a downhole tool string synchronized to an event comprises determining latency, sending a latency adjusted signal, and performing the action. The latency is determined between a control device and the at least one downhole device. The latency adjusted signal for triggering an action is sent to the downhole device. The action is performed downhole synchronized to the event. A preferred method for determining latency comprises the steps: a control device sends a first signal to the downhole device; after receiving the signal, the downhole device sends a response signal to the control device; and the control device analyzes the time from sending the signal to receiving the response signal.
摘要翻译：用于触发与事件同步的集成到井下工具串中的井下网络上的至少一个井下装置的动作的方法包括确定等待时间，发送等待时间调整信号并执行动作。在控制装置和至少一个井下装置之间确定等待时间。用于触发动作的等待时间调整信号被发送到井下装置。该操作与井下同步进行。用于确定等待时间的优选方法包括以下步骤：控制装置向井下装置发送第一信号; 井下装置收到信号后，向控制装置发送响应信号; 并且控制装置分析从发送信号到接收响应信号的时间。

6. 发明授权

US07274304B2 System for loading executable code into volatile memory in a downhole tool 有权
标题翻译：将可执行代码加载到井下工具中的易失性存储器中的系统
公开(公告)号：US07274304B2
公开(公告)日：2007-09-25
申请号：US10710638
申请日：2004-07-27
申请人： David R. Hall , David B. Bartholomew , Monte L. Johnson
发明人： David R. Hall , David B. Bartholomew , Monte L. Johnson
IPC分类号： G01V3/00
CPC分类号： E21B47/12 , G06F8/654
摘要： A system for loading an executable code into volatile memory in a downhole tool string component comprises a surface control unit comprising executable code. An integrated downhole network comprises data transmission elements in communication with the surface control unit and the volatile memory. The executable code, stored in the surface control unit, is not permanently stored in the downhole tool string component. In a preferred embodiment of the present invention, the downhole tool string component comprises boot memory. In another embodiment, the executable code is an operating system executable code. Preferably, the volatile memory comprises random access memory (RAM). A method for loading executable code to volatile memory in a downhole tool string component comprises sending the code from the surface control unit to a processor in the downhole tool string component over the network. A central processing unit writes the executable code in the volatile memory.
摘要翻译：用于在井下工具串组件中将可执行代码加载到易失性存储器中的系统包括包括可执行代码的表面控制单元。集成的井下网络包括与表面控制单元和易失性存储器通信的数据传输元件。存储在表面控制单元中的可执行代码不会永久存储在井下工具串组件中。在本发明的优选实施例中，井下工具串组件包括启动存储器。在另一个实施例中，可执行代码是操作系统可执行代码。优选地，易失性存储器包括随机存取存储器（RAM）。一种用于将可执行代码加载到井下工具串组件中的易失性存储器的方法包括将代码从表面控制单元发送到网络上的井下工具串组件中的处理器。中央处理单元将可执行代码写入易失性存储器。

7. 发明授权

US07132904B2 Apparatus for reducing noise 有权
标题翻译：减少噪音的设备
公开(公告)号：US07132904B2
公开(公告)日：2006-11-07
申请号：US10906387
申请日：2005-02-17
申请人： David R. Hall , Michael Rawle , David B. Bartholomew
发明人： David R. Hall , Michael Rawle , David B. Bartholomew
IPC分类号： H01P5/00 , G01V3/02
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。

8. 发明授权

US07548068B2 System for testing properties of a network 有权
标题翻译：用于测试网络属性的系统
公开(公告)号：US07548068B2
公开(公告)日：2009-06-16
申请号：US10904799
申请日：2004-11-30
申请人： Michael Rawle , David B. Bartholomew , Marshall A. Soares
发明人： Michael Rawle , David B. Bartholomew , Marshall A. Soares
IPC分类号： G01R31/11 , G01R27/04 , G01R27/32
CPC分类号： G01V11/002
摘要： A method for identifying properties of a downhole electromagnetic network in a downhole tool sting, including the step of providing an electromagnetic path intermediate a first location and a second location on the electromagnetic network. The method further includes the step of providing a receiver at the second location. The receiver includes a known reference. The analog signal includes a set amplitude, a set range of frequencies, and a set rate of change between the frequencies. The method further includes the steps of sending the analog signal, and passively modifying the signal. The analog signal is sent from the first location through the electromagnetic path, and the signal is modified by the properties of the electromagnetic path. The method further includes the step of receiving a modified signal at the second location and comparing the known reference to the modified signal.
摘要翻译：一种用于识别井下工具刺破中的井下电磁网络的特性的方法，包括提供在电磁网络上的第一位置和第二位置之间的电磁路径的步骤。该方法还包括在第二位置提供接收机的步骤。接收机包括已知参考。模拟信号包括设定幅度，设定的频率范围以及频率之间的设定变化率。该方法还包括发送模拟信号和被动地修改信号的步骤。模拟信号从第一位置通过电磁路径发送，信号由电磁路径的特性修改。该方法还包括在第二位置接收修改的信号并将已知参考与修改的信号进行比较的步骤。

9. 发明授权

US07142129B2 Method and system for downhole clock synchronization 有权
标题翻译：井下时钟同步的方法和系统
公开(公告)号：US07142129B2
公开(公告)日：2006-11-28
申请号：US10710875
申请日：2004-08-10
申请人： David R. Hall , David B. Bartholomew , Monte Johnson , Justin Moon , Roger O. Koehler
发明人： David R. Hall , David B. Bartholomew , Monte Johnson , Justin Moon , Roger O. Koehler
IPC分类号： G01V3/00
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。

10. 发明授权

US07586934B2 Apparatus for fixing latency 有权
标题翻译：用于固定延迟的装置
公开(公告)号：US07586934B2
公开(公告)日：2009-09-08
申请号：US10710882
申请日：2004-08-10
申请人： David R. Hall , David B. Bartholomew , Justin Moon , Roger O. Koehler
发明人： David R. Hall , David B. Bartholomew , Justin Moon , Roger O. Koehler
IPC分类号： H04L12/66
CPC分类号： E21B47/12 , G01V1/26 , G01V11/002
摘要： An apparatus for fixing computational latency within a deterministic region on a network comprises a network interface modem, a high priority module and at least one deterministic peripheral device. The network interface modem is in communication with the network. The high priority module is in communication with the network interface modem. The at least one deterministic peripheral device is connected to the high priority module. The high priority module comprises a packet assembler/disassembler, and hardware for performing at least one operation. Also disclosed is an apparatus for executing at least one instruction on a downhole device within a deterministic region, the apparatus comprising a control device, a downhole network, and a downhole device. The control device is near the surface of a downhole tool string. The downhole network is integrated into the tool string. The downhole device is in communication with the downhole network.
摘要翻译：用于在网络上的确定性区域内固定计算等待时间的装置包括网络接口调制解调器，高优先级模块和至少一个确定性外围设备。网络接口调制解调器与网络通信。高优先级模块与网络接口调制解调器通信。至少一个确定性外围设备连接到高优先级模块。高优先级模块包括分组组装/分解器和用于执行至少一个操作的硬件。还公开了一种用于在确定性区域内的井下装置上执行至少一个指令的装置，该装置包括控制装置，井下网络和井下装置。控制装置靠近井下工具串的表面。井下网络集成到工具串中。井下装置与井下网络连通。

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