Data compression methods and systems
    61.
    发明申请
    Data compression methods and systems 有权
    数据压缩方法和系统

    公开(公告)号:US20050222775A1

    公开(公告)日:2005-10-06

    申请号:US10848806

    申请日:2004-05-19

    IPC分类号: G01V3/34 G01V11/00 G06F19/00

    摘要: The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of automatically varying data compression rates during a measurement operation. The variable data compression capability facilitates reliable collection of measurement data at faster and/or constant logging speeds. The data compression methods and systems may be applied to any measurement operation relating to subterranean formations, including, but not limited to: acoustic wireline logging measurements, acoustic logging-while-drilling measurements, electromagnetic measurements, nuclear magnetic resonance measurements, and resistivity measurements.

    摘要翻译: 本发明涉及用于进行与地下地层相关的测量的方法和系统。 方法和系统有效地压缩数据,从而促进更有效的数据传输。 方法和系统能够在测量操作期间自动改变数据压缩率。 可变数据压缩功能有助于以更快和/或恒定的记录速度可靠地收集测量数据。 数据压缩方法和系统可以应用于与地下地层相关的任何测量操作,包括但不限于:声学有线测井测量,钻井前测井,电磁测量,核磁共振测量和电阻率测量。

    Wireless mutliplex data transmission system
    62.
    发明授权
    Wireless mutliplex data transmission system 失效
    无线多路复用数据传输系统

    公开(公告)号:US06917304B1

    公开(公告)日:2005-07-12

    申请号:US09402262

    申请日:1998-04-03

    CPC分类号: G08C15/00 G07C5/008

    摘要: A method and apparatus for wireless transmission of data through a communications channel between at least two local data sensors (for example automotive diagnostic data sensors or NVH sensors), which may include a primary data-processing function, and data-processing function (for example a PC) to receive data therefrom. The system provides for asymmetrical division of the communications channel on a frequency or time-division or packet-switching basis so that the corresponding asymmetrical data transmission requirement of the local data sensors are matched to the capacity of their respective sub-channels whereby a single channel is capable of transmitting all the required data. A particularly practical application is to noise vibration harshness analysis of wireless-transmitted data from three-dimensionally spaced NVH sensors enabling special pinpointing of vibration sources in automotive warranty analysis studies.

    摘要翻译: 一种用于通过至少两个本地数据传感器(例如汽车诊断数据传感器或NVH传感器)之间的通信信道无线传输数据的方法和装置,其可以包括主数据处理功能和数据处理功能(例如 PC)从其接收数据。 该系统在频率或时分或分组交换的基础上提供通信信道的不对称划分,使得本地数据传感器的相应的非对称数据传输需求与它们各自的子信道的容量相匹配,由此单个信道 能够发送所有所需的数据。 一个特别实用的应用是从三维间隔NVH传感器的无线传输数据的噪声振动粗糙度分析,可以在汽车保修分析研究中对振动源进行专门的定位。

    In situ oxidation reduction potential measurement of soils and ground
water
    63.
    发明授权
    In situ oxidation reduction potential measurement of soils and ground water 失效
    土壤和地下水的原位氧化还原电位测定

    公开(公告)号:US5798940A

    公开(公告)日:1998-08-25

    申请号:US677362

    申请日:1996-07-05

    IPC分类号: G01V3/34 G01V9/00

    CPC分类号: G01V3/34 G01V9/007

    摘要: A ground penetrometer for determining pH and oxidation reduction potential (ORP) of soils. The penetrometer includes an ORP electrode, a pH electrode, reference electrodes, and a temperature sensor. A singular reference electrode device establishes two reference partial electrical circuits complementing the ORP and pH electrodes. The reference electrode device includes an electrolytic chamber isolated from soil being investigated by an ion permeable ceramic barrier. Electrolytic liquids are retained within their chamber. The temperature sensor and the electrical circuits generate voltage or current signals to transducers, which in turn generate data signals responsive to the electrical signals to a microprocessor. The penetrometer, a driver for forcing the penetrometer into the ground, and the microprocessor are carried on a motorized vehicle to and about a site being investigated. The data is stored within the microprocessor and is available for graphic reproduction and transferral to other data handling equipment.

    摘要翻译: 用于测定土壤pH和氧化还原电位(ORP)的地面穿透仪。 透明计包括ORP电极,pH电极,参考电极和温度传感器。 单个参考电极装置建立了补充ORP和pH电极的两个参考部分电路。 参考电极装置包括由离子渗透性陶瓷屏障研究的与土壤隔离的电解室。 电解液保留在其室内。 温度传感器和电路向换能器产生电压或电流信号,换能器又产生响应于对微处理器的电信号的数据信号。 穿透仪是用于将穿透器强制进入地面的驱动器,微处理器被携带在机动车辆上并且被调查的位置附近。 数据存储在微处理器中,可用于图形再现和传输到其他数据处理设备。

    Method and device for setting up sondes against the wall of a cased well
    64.
    发明授权
    Method and device for setting up sondes against the wall of a cased well 失效
    用于设置与套管井壁相关联的方法和装置

    公开(公告)号:US5318129A

    公开(公告)日:1994-06-07

    申请号:US848138

    申请日:1992-03-09

    摘要: Sondes provided with magnets are used in wells fitted with a metallic casing. The sondes are pressed at the surface against the inner wall of the casing and taken down towards the bottom by means of a stiff driving element such as a tubing provided with thrust driving means for the longitudinal drive and lateral extensions for the lateral positioning of the sonde, or using pulling slings, etc. The wall of the sonde pressed against the casing can have the same bending radius as the casing in order to improve the coupling. The sonde can be associated with an electronic data acquisition and transmission box fastened to the tubing. Before any intervention is performed, the tubing is moved sufficiently in order to suppress any mechanical coupling with the sonde. After it has been used, the sonde can be displaced towards another point of measurement or taken up to the surface by moving the tubing.

    摘要翻译: 带有磁铁的发光二极管用于配有金属外壳的井中。 探头在表面被压靠在壳体的内壁上,借助于刚性的驱动元件(例如设置有用于纵向驱动的推力驱动装置的管道)和用于探测仪的侧向定位的侧向延伸部 或使用牵引吊索等。压靠在壳体上的探头的壁可以具有与壳体相同的弯曲半径,以便改善耦合。 探头可以与固定到管道上的电子数据采集和传输箱相关联。 在执行任何干预之前,管道被充分移动,以便抑制与探头的任何机械耦合。 在使用之后,探头可以移动到另一个测量点,或通过移动管道而被吸收到表面。

    Dynamic range control of electrode pad current in well logging tools
    66.
    发明授权
    Dynamic range control of electrode pad current in well logging tools 失效
    测井工具中电极焊盘电流的动态范围控制

    公开(公告)号:US4514809A

    公开(公告)日:1985-04-30

    申请号:US373776

    申请日:1982-04-30

    IPC分类号: G01V3/24 G01V3/34 G01V3/28

    CPC分类号: G01V3/34 G01V3/24

    摘要: In apparatus for investigating earth formations traversed by a borehole, improved methods and apparatus are provided for achieving dynamic range control of formation measurements. In one embodiment adapted to formation resistivity measurements, a well logging tool moving through a borehole emits a current into the adjacent earth formation, and a corresponding measurement voltage correlative to the resistivity is sampled at discrete elevations as the tool traverses the borehole. An average of these voltage measurements is formed. When the magnitude of this average exceeds or drops below a predetermined range, the magnitude of the survey voltage is decreased or increased respectively by a discrete amount.

    摘要翻译: 在用于研究由钻孔穿过的地层的装置中,提供改进的方法和装置以实现地层测量的动态范围控制。 在适于形成电阻率测量的一个实施例中,通过钻孔移动的测井工具将电流发射到相邻的地层中,并且随着工具穿过井眼,在离散的高度处对与电阻率相关的对应的测量电压进行采样。 形成这些电压测量的平均值。 当该平均值的大小超过或低于预定范围时,测量电压的大小分别减小或增加离散量。

    Digital induction logging system including means for generating a
plurality of transmitter frequencies
    67.
    发明授权
    Digital induction logging system including means for generating a plurality of transmitter frequencies 失效
    数字感应测井系统,包括用于产生多个发射机频率的装置

    公开(公告)号:US4499421A

    公开(公告)日:1985-02-12

    申请号:US271275

    申请日:1981-06-08

    申请人: Paul L. Sinclair

    发明人: Paul L. Sinclair

    CPC分类号: G01V3/38 G01V3/28

    摘要: A digital induction resistivity logging system is disclosed for digitally measuring phase components in a receiver signal generated in response to eddy currents flowing in the earth's sub-surface formations. The induction logging system includes a central processing unit (CPU) located at the surface for receiving digital signals from a digital induction logging tool located downhole, and for analyzing the received data. The CPU supplies command and control signals to the induction logging tool to specify operating modes and parameters for obtaining the digital signals. The system further includes a digital telemetry system associated with a wireline cable for transmitting and receiving data between the induction tool and the CPU. The digital induction tool includes a digital sinewave generator for generating a highly phase stable, low distortion transmitter signal whose frequency is selectable from at least two of transmitter frequencies. Selection of the transmitter frequency may be based on optimizing the measurement of a characteristic of the formations being encountered by the tool. Automatic phase compensation is included to dynamically compensate for both static and dynamic temperature dependent phase errors due to circuits of the tool involved in the component measurements. A floating point analog-to-digital convertor capable of responding to the wide dynamic range in the detected phase component signals is provided to convert the phase detector output into digital signals for use by the CPU.

    摘要翻译: 公开了一种用于数字测量响应于在地球表面地层中流动的涡流而产生的接收机信号中的相位分​​量的数字感应电阻率测井系统。 感应测井系统包括位于表面的中央处理单元(CPU),用于从位于井下的数字感应测井工具接收数字信号,并用于分析接收到的数据。 CPU向感应测井工具提供命令和控制信号,以指定获取数字信号的操作模式和参数。 该系统还包括与用于在感应工具和CPU之间传送和接收数据的有线电缆相关联的数字遥测系统。 数字感应工具包括数字正弦波发生器,用于产生高相位稳定的低失真发射机信号,其频率可从至少两个发射机频率选择。 发射机频率的选择可以基于优化工具遇到的地层特征的测量。 包括自动相位补偿,以动态补偿由于组件测量中所涉及的刀具电路引起的静态和动态温度相关误差。 提供能够响应检测到的相位分量信号中的宽动态范围的浮点模数转换器,以将相位检测器输出转换成数字信号供CPU使用。