Rotary torque and rpm indicator for oil well drilling rigs
    1.
    发明授权
    Rotary torque and rpm indicator for oil well drilling rigs 失效
    油井钻机的旋转扭矩和转速指示器

    公开(公告)号:US4285236A

    公开(公告)日:1981-08-25

    申请号:US97007

    申请日:1979-11-23

    Inventor: Loring C. Chien

    CPC classification number: E21B45/00 E21B44/00 E21B44/04 E21B47/0006 E21B47/122

    Abstract: Monitoring the torque applied by the rotary table to the drill string and the RPM of the drill string is provided. An intermediate adapter is positioned between the drill Kelly and the rotary table. A strain gauge is attached to the intermediate adapter to measure torsional deformation and provide an indication of rotary torque. Transmission of torque data is accomplished by radio frequency transmission utilizing a transmitter on the intermediate adapter. A receiver is mounted to the side of the drill rig floor to receive and demodulate the torque signal. The intermediate adapter is rotating at the same rate as the drill string. Detection of the revolutions utilizing the changing R.F. field strength is accomplished at the edge of the drill rig platform or elsewhere with a stationary sensor which doubles as the torque receiver. A highly directional torque transmitter antenna mounted on the adapter is used with the major lobe lying parallel to the rig floor and perpendicular to the pipe. By detecting the envelope of the radio frequency field strength, each rotation is marked by a peak. This enables continuous torque and RPM monitoring.

    Abstract translation: 提供了将旋转台施加到钻柱上的扭矩和钻柱的RPM。 中间适配器定位在钻孔Kelly和旋转台之间。 应变仪连接到中间适配器以测量扭转变形并提供旋转扭矩的指示。 转矩数据的传输通过使用中间适配器上的发射机的射频传输实现。 接收器安装在钻机平台的侧面以接收和解调扭矩信号。 中间适配器以与钻柱相同的速率旋转。 使用变化的R.F.检测转数。 场强在钻机平台的边缘或其他地方用固定的传感器完成,该传感器兼作扭矩接收器。 安装在适配器上的高度方向的扭矩发射器天线被使用,主瓣平行于钻台并垂直于管。 通过检测射频场强度的包络,每个旋转用峰值标记。 这样可实现连续扭矩和RPM监控。

    Oilfield pump stroke monitor
    2.
    发明授权
    Oilfield pump stroke monitor 失效
    油田泵行程监视器

    公开(公告)号:US4213740A

    公开(公告)日:1980-07-22

    申请号:US924526

    申请日:1978-07-14

    Inventor: Loring C. Chien

    CPC classification number: E21B21/08

    Abstract: The pumping rate of an oil well pump or other recurring event is determined by providing a force sensor, such as an accelerometer, and a transmitter arranged in a housing adapted to be affixed to the pump piston rod or drive train which move in a vertical plane. As the piston rod or drive train moves, the sensor measures gravitational and centrifugal forces, the former providing a sinousoidally varying sensor output having a period equal to the rotational or reciprocal period of the piston rod or drive train. The transmitter is a battery-powered R.F. device which is activated once each stroke or revolution by an amplifier-detector coupled to the output of the force sensor. A one-shot multivibrator is used to transmit a short burst during the on-time and such burst may be modulated for better noise rejection by the receiver. The receiver is located remote from the sensor/transmitter package and comprises an R.F. detector, amplifier and, if required, a demodulator. Each output pulse from the receiver circuit represents one rotation or oscillation of the machine element.

    Abstract translation: 油井泵或其他重复事件的泵送速率通过提供力传感器(例如加速度计)和布置在壳体中的发射器来确定,该壳体适于固定到在垂直平面中移动的泵活塞杆或传动系 。 当活塞杆或传动系移动时,传感器测量重力和离心力,前者提供了具有等于活塞杆或传动系的旋转或往复周期的周期性变化的传感器输出。 发射机是电池供电的R.F. 装置,其通过耦合到力传感器的输出的放大器检测器在每次行程或转动后被激活。 单触发多谐振荡器用于在导通时间期间发送短脉冲串,并且这样的脉冲串可以被调制以便接收器更好的噪声抑制。 接收器位于远离传感器/发射器封装并且包括R.F. 检测器,放大器,如果需要,还有一个解调器。 来自接收器电路的每个输出脉冲表示机器元件的一个旋转或振荡。

    Optical combiner for redundant optical paths in seismic data transmission
    3.
    发明授权
    Optical combiner for redundant optical paths in seismic data transmission 失效
    用于地震数据传输中冗余光路的光合并器

    公开(公告)号:US6079882A

    公开(公告)日:2000-06-27

    申请号:US132346

    申请日:1998-08-12

    Inventor: Loring C. Chien

    CPC classification number: H04B10/032 G02B6/3833 G02B6/4204

    Abstract: A connector for fiber optics provides a means for eliminating a receiver in a redundant communications channel. The connector receives at least two optical fibers in side-by-side contact and positions the optical fibers in close proximity but not abutting contact with a photo detector imbedded in the connector. The connector further provides a method and a system for redundant data communications.

    Abstract translation: 用于光纤的连接器提供了用于消除冗余通信信道中的接收机的装置。 连接器以并排接触的方式接收至少两根光纤,并且将光纤定位在非常接近但不与嵌入在连接器中的光电检测器邻接。 连接器还提供用于冗余数据通信的方法和系统。

    Control and monitoring of devices external to a marine seismic streamer
    4.
    发明授权
    Control and monitoring of devices external to a marine seismic streamer 失效
    控制和监测海洋地震拖缆外部装置

    公开(公告)号:US6011753A

    公开(公告)日:2000-01-04

    申请号:US44740

    申请日:1998-03-19

    Inventor: Loring C. Chien

    CPC classification number: G01V1/201 G01V1/3817

    Abstract: A technique and a system provide control and monitoring of devices external to a marine seismic streamer by segmenting the conductor to which the external devices are coupled. The module which connects sections of the seismic data telemetry cable is modified to include a switch. The switch is controlled by a command signal on the seismic data telemetry cable to segment the twisted pair bus into a plurality of dedicated busses, each dedicated to a subset of the external devices, such as one or two such devices. In this way, the external devices can be communicated with in parallel, rather than in series as in conventional systems.

    Abstract translation: 技术和系统通过分割与外部设备耦合的导体来提供对海洋地震拖缆外部装置的控制和监视。 连接地震数据遥测电缆部分的模块被修改为包括开关。 开关由地震数据遥测电缆上的命令信号控制,以将双绞线总线分段成多个专用总线,每个专用总线专用于外部设备的子集,例如一个或两个这样的设备。 以这种方式,外部设备可以与传统系统中的并联而不是串联连接。

    Variable length data field in a seismic data stream
    5.
    发明授权
    Variable length data field in a seismic data stream 失效
    地震数据流中的可变长度数据字段

    公开(公告)号:US6115325A

    公开(公告)日:2000-09-05

    申请号:US62905

    申请日:1998-04-20

    CPC classification number: G01V1/22

    Abstract: A variable length data packet in a seismic system includes a fixed-length data portion and a variable-length data portion, the amount of data in the variable-length portion depending on the number of active channels. The data packet identifies the number channels which are in operation in the system, which may be the same or fewer than the number of installed channels. This signals the central recorder as to the length of the block of data in the data packet which includes seismic data. This feature permits the scaling of the system to accommodate varying numbers of channels, without reconfiguring the system. In another aspect, a method of sending data in a data system having a plurality of installed channels includes the steps of determining the number of active channels; assembling a packet of data comprising a fixed-length field and a variable-length field, the number of data bytes in the variable-length field being a function of the number of active channels; and sending the packet of data.

    Abstract translation: 地震系统中的可变长度数据分组包括固定长度数据部分和可变长度数据部分,可变长度部分中的数据量取决于活动信道的数量。 数据包标识系统中正在运行的数字信道,其数量可以等于或少于已安装信道的数量。 这个信号表示中央记录器关于包含地震数据的数据包中的数据块的长度。 该特征允许系统的缩放以适应不同数量的信道,而不重新配置系统。 在另一方面,一种在具有多个安装信道的数据系统中发送数据的方法包括以下步骤:确定活动信道的数量; 组合包括固定长度字段和可变长度字段的数据包,可变长度字段中的数据字节数是活动信道数量的函数; 并发送数据包。

    Multiple transmission path seismic telemetering system
    6.
    发明授权
    Multiple transmission path seismic telemetering system 失效
    多路传输路径地震电报系统

    公开(公告)号:US5058080A

    公开(公告)日:1991-10-15

    申请号:US280097

    申请日:1988-12-05

    CPC classification number: G01V1/22

    Abstract: In a marine seismic data acquisition system, a plurality of seismic data transmission paths are utilized to conduct seismic data to a central recording unit from seismic data acquisition modules positioned along the length of cable. Signals from a plurality of data acquisition modules are applied to each of the transmission paths. Data acquisition modules which apply seismic signals to a given transmission path may be spaced and substantially uniform distances along the length of the cable and may be interspersed with data acquisition modules which apply seismic data to each of the other transmission paths. The operation of the data acquisition modules is synchronized by means of a signal transmitted continually from a central recording unit. Each section of the cable includes a plurality of remote units distributed along the cable section for detecting seismic signal. Each section includes a data acquisition module which receives command signals from a central recording unit and which receives seismic data signals from the remote units and transmits seismic data signals to the central recording unit.

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