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公开(公告)号：US5546672A
公开(公告)日：1996-08-20
申请号：US337332
申请日：1994-11-09
摘要： A method and apparatus for detecting magnetic marks on a wireline logging cable and for more accurately making depth measurements during logging is described. The method uses depth-based, rather than time-based, samples and calculations. A Hall Effect sensor samples the cable at regular depth intervals approximated by an encoder mechanism. The signal values from the Hall Effect sensor are signal processed to better discriminate the precise location of the magnetic marks on the cable. The location of the magnetic marks is used to refine the depth measurements from the encoder mechanism. Depth-based sampling eliminates detection dependence on cable speed, enhances detection ability, reduces computational load, and leads to more accurate determination of the location of magnetic marks.
摘要翻译： 描述了一种用于检测电缆测井电缆上的磁痕并且在记录期间更准确地进行深度测量的方法和装置。 该方法使用基于深度的，而不是基于时间的样本和计算。 霍尔效应传感器以编码器机构近似的规则深度间隔对电缆进行采样。 来自霍尔效应传感器的信号值进行信号处理，以更好地区分电缆上磁标记的精确位置。 磁标记的位置用于细化编码器机构的深度测量。 基于深度的采样消除了对电缆速度的检测依赖性，增强了检测能力，减少了计算负荷，并且更准确地确定了磁标记的位置。
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2.发明授权Well-logging data processing system having segmented serial processor-to-peripheral data links 失效测井数据处理系统具有分段的串行处理器到外围的数据链路
公开(公告)号：US4490788A
公开(公告)日：1984-12-25
申请号：US427070
申请日：1982-09-29
申请人： Marvin W. Rasmussen
发明人： Marvin W. Rasmussen
CPC分类号： E21B47/00 , G06F13/34 , G06F13/4022
摘要： A well-logging well-site data acquisition and data processing system is disclosed. A central processing unit including a main memory and a single data bus is provided for data transfers with a first plurality of peripheral units. A plurality of serial link units are also provided. Each serial link unit includes a plurality of serial data input/output channels where each serial channel sends on transmit lines and receives on receive lines serial data between a second plurality of peripheral units connected to a serial link unit. A processor interface unit is provided for controlling the transfer of data between the host central processor unit and the plurality of serial link units. A microprocessor unit is provided as a communications controller for initiating the transfer of data between the plurality of serial link units and the processor interface unit. The plurality of serial link units in cooperation with the microprocessor unit and the processor interface unit enable the simultaneous input/output transfer of data to the peripherals to occur thereby increasing the effective data transfer rate of the system.
摘要翻译： 公开了一种测井井场数据采集和数据处理系统。 提供包括主存储器和单个数据总线的中央处理单元用于与第一多个外围单元的数据传输。 还提供了多个串行链路单元。 每个串行链路单元包括多个串行数据输入/输出通道，其中每个串行通道在发送线上发送，并且在连接到串行链路单元的第二多个外围单元之间的接收线上接收串行数据。 提供处理器接口单元，用于控制主机中央处理器单元和多个串行链路单元之间的数据传输。 提供微处理器单元作为通信控制器，用于启动多个串行链路单元和处理器接口单元之间的数据传输。 与微处理器单元和处理器接口单元协作的多个串行链路单元使得能够同时输入/输出向外围设备传送数据，从而增加系统的有效数据传输速率。
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公开(公告)号：US06216789B1
公开(公告)日：2001-04-17
申请号：US09356432
申请日：1999-07-19
IPC分类号： E21B1502
CPC分类号： B66D1/505 , E21B19/02 , E21B19/09 , Y10S254/90
摘要： A computer controlled heave compensation wireline logging winch system and method of use that compensates for the effects of wave motion on floating installations performing wireline logging measurements. A wireline winch and wireline cable with a logging measurement tool attached is installed on a floating installation. Vessel vertical movement is measured and is physically compensated for by a change in speed of the wireline cable so that the logging data is obtained at a controlled speed. Any error in this physical compensation is detected by a depth measurement system and is used to adjust the true depth at which the logging tool measurements are being recorded.
摘要翻译： 一种计算机控制的升沉补偿电缆测井绞车系统和使用方法，用于补偿波动对浮动装置进行电缆测井测量的影响。 在浮动安装上安装了连接有测井测量工具的有线绞盘和有线电缆。 测量容器垂直运动，并通过有线电缆的速度变化进行物理补偿，从而以受控的速度获得测井数据。 这种物理补偿的任何错误都可以通过深度测量系统来检测，并用于调整记录测井仪测量的真实深度。
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4.发明授权
公开(公告)号：US5736936A
公开(公告)日：1998-04-07
申请号：US585390
申请日：1996-01-11
申请人： Bart J. Bombay , Marvin W. Rasmussen , Lloyd D. Clark, Jr. , Terry L. Mayhugh , Terry L. Mayhugh, Jr. , Jimmy E. Neeley , Guy Vachon
发明人： Bart J. Bombay , Marvin W. Rasmussen , Lloyd D. Clark, Jr. , Terry L. Mayhugh , Terry L. Mayhugh, Jr. , Jimmy E. Neeley , Guy Vachon
CPC分类号： H02J13/00 , G01R19/04 , G01R31/021
摘要： A method and apparatus for predicting the peak voltage at the load end of a power transmission cable having a power supply end and a load end, where direct measurement at the load end is not practical. The method samples the current and voltage waveforms at the power supply end of the cable. The current waveform is used to estimate a current function which includes a full width at half maximum and adjustments for cable reactive current, distortions, and load. The product of the current function and a peak voltage sample from the power supply end is an estimate of the peak voltage at the load end. The method and apparatus have been applied to oil well logging where one or more logging tools are lowered at the end of a transmission cable into an oil well and it is desirable to predict peak voltage at the tools to ensure proper tool performance. An important improvement is a more accurate current function which compensates for capacitive current flow in the cable and includes a quadratic term. Additional improvements are described, namely a method for predicting downhole current, adjustments for power supply distortions, and diagnostic metrics.
摘要翻译： 一种用于预测具有电源端和负载端的电力传输电缆的负载端的峰值电压的方法和装置，其中在负载端的直接测量是不实际的。 该方法对电缆电源端的电流和电压波形进行采样。 电流波形用于估计包括半峰全宽和电缆无功电流，失真和负载调整的当前功能。 来自电源端的当前功能和峰值电压采样的乘积是负载端的峰值电压的估计。 该方法和设备已经应用于油井测井，其中一个或多个测井工具在传输电缆的末端降低到油井中，并且期望预测工具的峰值电压以确保适当的工具性能。 一个重要的改进是更准确的电流功能，补偿电缆中的电容电流，并包括二次项。 描述了额外的改进，即预测井下电流，电源失真调整和诊断指标的方法。
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公开(公告)号：US5357395A
公开(公告)日：1994-10-18
申请号：US904392
申请日：1992-06-25
摘要： An undervoltage protection circuit, system and method is prodded for sending a reset signal to an electronic device during undervoltage time periods in which the device power supply voltage is less than a desired amount. The protection circuit includes a sensing circuit and a latching network adapted to quickly discharge a storage capacitor when the sensing circuit senses the undervoltages. A buffer network is included to send a reset signal to the electronic device whenever the storage capacitor discharges to a low latched level. The reset signal exists substantially throughout the undervoltage time period and also for a set delay period after the undervoltage time period ceases. During receipt of the reset signal, the electronic device will be inhibited from incurring damage or loss of data.
摘要翻译： 在设备电源电压小于期望量的欠电压时间段期间，引入欠压保护电路，系统和方法用于在电子设备上发送复位信号。 保护电路包括感测电路和适于在感测电路感测欠电压时快速放电存储电容器的闭锁网络。 只要存储电容器放电到低锁存电平，就包括缓冲器网络，以将复位信号发送到电子设备。 复位信号基本上存在于整个欠压时间周期内，并且在欠压时间段停止之后的设定延迟时间段内。 在接收到复位信号时，电子设备将被禁止发生数据损坏或丢失。
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