Process and device for optimizing signal transmission rates on
multifunctional well cables
    1.
    发明授权
    Process and device for optimizing signal transmission rates on multifunctional well cables 失效
    用于优化多功能电缆信号传输速率的过程和设备

    公开(公告)号:US5243337A

    公开(公告)日:1993-09-07

    申请号:US875321

    申请日:1992-04-29

    摘要: A process for optimizing the transmission rates of digitized signals on transmission lines in multifunction cables, such as logging cables linking well tools to surface installations. The process includes digitising of the data to be transmitted and coding thereof through voltages selected from a set of multilevel coding voltages (2 to 32 for example), and widening towards high frequencies of the passband of each transmission line used, by combination with correcting circuits selected so that the transfer function of the corrected line is substantially that of a filter of the Bessel type, at least in a given frequency range on either side of a 3-dB cut-off frequency fc which depends on the number of coding voltages and on the amplification parameters. Using this process makes it possible to exceed very easily a total flow rate higher than one Mbits/s without increasing the transmission error rate.

    摘要翻译: 用于优化多功能电缆中传输线上数字化信号传输速率的过程,例如将井工具连接到地面安装的测井电缆。 该处理包括通过从一组多级编码电压(例如,2至32)中选择的电压对要发送的数据进行数字化和编码,并且通过与校正电路的组合朝着使用的每个传输线的通带的高频扩大 被选择为使得校正线的传递函数基本上是贝塞尔类型的滤波器的传递函数,至少在取决于编码电压的数量的3-dB截止频率fc的任一侧的给定频率范围内,以及 对放大参数。 使用该过程使得可以非常容易地超过高于1Mbits / s的总流量,而不增加传输错误率。

    Method and apparatus for controlling an immersed multisource array
emitting acoustic impulses
    2.
    发明授权
    Method and apparatus for controlling an immersed multisource array emitting acoustic impulses 失效
    用于控制多重排列多重排列声调的方法和装置

    公开(公告)号:US5200927A

    公开(公告)日:1993-04-06

    申请号:US723385

    申请日:1991-06-28

    IPC分类号: G01V1/02 G01V1/04

    CPC分类号: G01V1/006 G01V1/04

    摘要: In a multisource array of seismic sources, each source is associated with one or more sensors (Ci) for picking up the impulses (TB or signature) emitted by the associated source when triggered. The apparatus essentially includes one or more acquisition arrays (Ai), each one associated with a storage unit (Mi) for all the signals emitted by the pickups (Ci) under the control of a computer (10). Each memory unit includes a comparison module (19, 21, 22) for comparing the digitized samples with a threshold value. The number of each one of the channels where a threshold overrun has occurred is recorded in a reference register (24) which is systematically read by the computer. This monitoring of the level of the picked up signals is carried out outside the normal period where the sources are triggered.

    摘要翻译: 在多源地震源阵列中,每个源与一个或多个传感器(Ci)相关联,用于拾取相关源在触发时发射的脉冲(TB或签名)。 该设备基本上包括一个或多个采集阵列(Ai),每个采集阵列(Ai)与计算机(10)的控制下由拾取器(Ci)发射的所有信号的存储单元(Mi)相关联。 每个存储器单元包括用于将数字化采样与阈值进行比较的比较模块(19,21,22)。 已经发生阈值溢出的每个通道的数量被记录在由计算机系统地读取的参考寄存器(24)中。 这种对拾取信号的电平的监视在源被触发的正常周期之外进行。

    Method and device for optimizing the triggering of an array of marine
seismic sources
    3.
    发明授权
    Method and device for optimizing the triggering of an array of marine seismic sources 失效
    优化海底地震源阵列的触发方法和装置

    公开(公告)号:US5184329A

    公开(公告)日:1993-02-02

    申请号:US723391

    申请日:1991-06-28

    IPC分类号: G01V1/04 G01V1/08

    CPC分类号: G01V1/04 G01V1/08

    摘要: Each source of an array of seismic signal sources is associated with one or several sensors (Ci) which pick up the impulses the associated source emits at the time of triggering. The device essentially includes an apparatus (6) for the acquisition and the storage of all the signals emitted by the sensors (Ci) and a shooting control apparatus (7), having memories for reference data, for triggering the seismic sources according to these reference data. A computer (10) is programmed to determine the reference data used for the triggering, preferable according to the signals from the sensors (Ci) acquired during the previous emission cycles and validated in order to check whether their form and/or arrival times are within fixed limits. This arrangement makes it possible to take into account the real working conditions of the emission array. The invention can be utilized in marine seismic prospecting.

    摘要翻译: 地震信号源阵列的每个源与一个或几个传感器(Ci)相关联,传感器(Ci)拾取相关源在触发时发射的脉冲。 该装置基本上包括用于采集和存储由传感器(Ci)发射的所有信号和具有用于参考数据的存储器的拍摄控制装置(7)的装置(6),用于根据这些参考触发地震源 数据。 计算机(10)被编程为确定用于触发的参考数据,优选地根据来自先前发射周期期间获得的传感器(Ci)的信号并被验证,以便检查其形式和/或到达时间是否在 固定限制。 这种布置使得可以考虑排放阵列的实际工作条件。 本发明可用于海洋地震勘探。

    Device for interconnecting a series of data acquisition apparatuses to a
remote receiving and recording system
    4.
    发明授权
    Device for interconnecting a series of data acquisition apparatuses to a remote receiving and recording system 失效
    用于将一系列数据采集设备互连到远程接收和记录系统的设备

    公开(公告)号:US4523191A

    公开(公告)日:1985-06-11

    申请号:US404092

    申请日:1982-07-30

    CPC分类号: H04Q9/00 G01V1/22

    摘要: A device is provided for interconnecting a series of data acquisition apparatuses. Each of the apparatuses collect signals and transmit them to a remote central receiving and recording system. In order to sequentially transmit the signals thereto on reception of an order from said central system, the apparatuses are subdivided into a plurality of groups having the same number m of apparatuses. The groups comprise cable sections of substantially equal length interconnecting the acquisition apparatuses in such a manner that the apparatuses of the same rank of each group are connected in parallel by the same transmission cable to the central system.

    摘要翻译: 提供了用于互连一系列数据采集装置的装置。 每个设备收集信号并将其发送到远程中央接收和记录系统。 为了在从所述中央系统接收到命令时顺序地发送信号,将装置细分成具有相同数量的装置的多个组。 这些组包括基本相同长度的电缆部分,这些电缆部分以这样的方式互连,即每组的相同等级的装置通过相同的传输电缆并联连接到中央系统。

    Stationary system for the active and/or passive monitoring of an
underground deposit
    5.
    发明授权
    Stationary system for the active and/or passive monitoring of an underground deposit 失效
    用于主动和/或被动监测地下沉积物的固定系统

    公开(公告)号:US5363094A

    公开(公告)日:1994-11-08

    申请号:US991594

    申请日:1992-12-16

    CPC分类号: E21B47/123 G01V11/002

    摘要: Monitoring of an underground effluent deposit (2) and the exploration thereof are performed by installing various devices or user modules : reception arrays (Ri, Rj, Rk) such as geophones or hydrophones, condition sensors (C1, C2) , tools requiring electric power supply, etc, in various locations along one or several wells (1) drilled down into a formation, behind well casings or in the annular space between these casings and tubings, and by connecting these devices to a surface station (4), by means of a particularly simple and reliable multi-channel transmission unit. The surface station adapts the commands thereof according to the device to be controlled in return, of receiving all the signals they transmit whether analog or digital and coded, and adapts to several modes of allocation of the transmission channels. With such a system, long-duration monitoring operations may be carried out on a large scale under satisfactory economic conditions.

    摘要翻译: 通过安装各种设备或用户模块来进行地下流出物沉积物(2)的监测及其探索:接收阵列(Ri,Rj,Rk)如地震检波器或水听器,状态传感器(C1,C2),需要电力的工具 供应等,沿着钻进地层中的一个或多个井(1)的各个位置,在井壳之后或这些壳体和管道之间的环形空间中,以及通过装置将这些装置连接到地面站(4) 一个特别简单可靠的多通道传输单元。 地面台根据待控制的装置适应其命令,接收它们发射的所有信号,无论是模拟还是数字编码,并适应于传输信道的多种分配模式。 通过这样一个系统,长期监测操作可以在令人满意的经济条件下大规模进行。

    Device for acquiring seismic data in a borehole and transmission thereof
to a central control and recording system
    6.
    发明授权
    Device for acquiring seismic data in a borehole and transmission thereof to a central control and recording system 失效
    用于在井眼中采集地震数据并将其传输到中央控制和记录系统的装置

    公开(公告)号:US4862425A

    公开(公告)日:1989-08-29

    申请号:US177476

    申请日:1988-04-01

    CPC分类号: G01V13/00 G01V11/002

    摘要: A device is provided for acquiring data coming from sensors distributed in several probes which may be anchored in a well or borehole and transmission thereof to a central control and recording system, including a remote control assembly for checking operating parameters. An acquisition apparatus includes a main multiplexer for seismic channels and an auxiliary multiplexer. The control assembly includes different modules delivering signals indicative of the position of the anchorage arms, of the operating temperature, of the power supply voltage, etc, means for testing the sensors and the seismic channels, and means for detecting any malfunction in the advance of the probes along the borehole. Different lines connected to the auxiliary multiplexer transmit the signals delivered by the control assembly.

    摘要翻译: 提供一种装置,用于获取来自分布在若干探头中的传感器的数据,这些传感器可以锚定在井或钻孔中,并将其传输到中央控制和记录系统,包括用于检查操作参数的遥控组件。 采集装置包括用于地震通道的主多路复用器和辅助多路复用器。 控制组件包括传递指示锚固臂的位置,工作温度,电源电压等的信号的不同模块,用于测试传感器和地震通道的装置,以及用于检测传感器和地震通道的任何故障的装置 沿钻孔的探头。 连接到辅助多路复用器的不同线路传输由控制组件传递的信号。

    Device and method for amplifying and sampling multiplexed signals
    7.
    发明授权
    Device and method for amplifying and sampling multiplexed signals 失效
    用于放大和采样复用信号的装置和方法

    公开(公告)号:US4426624A

    公开(公告)日:1984-01-17

    申请号:US286323

    申请日:1981-07-24

    CPC分类号: H03G3/30 G11C27/026

    摘要: An amplification and sampling device for multiplexed analog signals comprises a continuous chain of amplification elements, means for giving to each of said elements a gain selected from a predetermined set of values, sample-and-hold units for memorizing the amplified voltages available at the output of said elements, means for correcting the drift or noise voltage of the amplification chain and selection means for applying to the amplification chain the samples of the multiplexed analog signals or the voltages memorized in the sample-and-hold units, in accordance with the voltage level obtained at the output of the amplification chain as compared with reference voltages.

    摘要翻译: 用于复用的模拟信号的放大和采样装置包括连续的放大元件链,用于向每个所述元件提供从预定值值中选出的增益的装置,用于存储在输出端可用的放大电压的采样和保持单元 的所述元件,用于校正放大链的漂移或噪声电压的装置和用于根据电压向放大链施加多路复用的模拟信号的样本或存储在采样和保持单元中的电压的选择装置 与参考电压相比,在放大链的输出处获得的电平。

    Microprogrammed computing device
    8.
    发明授权
    Microprogrammed computing device 失效
    微编程计算设备

    公开(公告)号:US4007444A

    公开(公告)日:1977-02-08

    申请号:US415326

    申请日:1975-11-13

    CPC分类号: G06F9/4881 G06F9/226 G06F9/26

    摘要: Microprogrammed computing device comprising a data processing system, a central memory operatively connected thereto, means for exchanging data with peripheral devices, a system for controlling the execution of orders issued from the memory, a system for hierarchically classifying the tasks in a list and making the processing system available for the task having the first priority and a system for managing said list, means for testing the availability of said peripheral devices and means for adapting the processing system to each new task to which the first priority is given, whereby several computing and data exchange processes may be performed by the same device.

    摘要翻译: 微编程计算设备,包括数据处理系统,与其可操作地连接的中央存储器,用于与外围设备交换数据的装置,用于控制从存储器发出的命令的执行的系统,用于对列表中的任务进行分层分类, 可用于具有第一优先权的任务的处理系统和用于管理所述列表的系统的装置,用于测试所述外围设备的可用性的装置以及用于使处理系统适应于给予第一优先级的每个新任务的装置,由此几个计算和 数据交换过程可以由相同的设备执行。

    Device for data transmission between seismic data acquisition devices
and a recording device
    10.
    发明授权
    Device for data transmission between seismic data acquisition devices and a recording device 失效
    地震数据采集装置与记录装置之间的数据传输装置

    公开(公告)号:US4398271A

    公开(公告)日:1983-08-09

    申请号:US213760

    申请日:1980-12-05

    CPC分类号: H04L12/437 G01V1/22

    摘要: A device for transmitting seismic data informations from acquisition devices of a seismic streamer to a central recorder an a ship, comprises at least two outward, and at least tow inward transmission lines made up of line sections interconnected by interconnection systems including means for the reconfiguration of signals, means for detecting order signals receives at said interconnection systems and switching means, and controlled by the detection means to connect different line sections, previously tested, and to by-pass faulty sections so as to form one outward and one inward continuous transmission line in good operating condition.

    摘要翻译: 一种用于将地震数据信息从地震拖缆的采集设备传送到中央记录器的装置,包括至少两个向外和至少两个向内的传输线,所述传输线由互连系统互连的线段组成,包括用于重构 信号,用于检测顺序信号的装置在所述互连系统和切换装置处接收,并由检测装置控制,以连接先前测试的不同线路部分和旁路故障部分,以便形成一个向外和一个向内连续的传输线 在良好的运行状态。