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公开(公告)号：US20240248225A1
公开(公告)日：2024-07-25
申请号：US18560435
申请日：2022-01-31
摘要： A System including multiple data acquisition units. A data acquisition unit includes a housing whose interior volume is defined by an outer wall, a top part and a bottom part; the housing includes a geolocation unit for processing a time synchronisation signal, a data communication unit for enabling wireless data communication with an external gateway device, a processing unit, a geophone assembly in the housing to sense vibration received via a sensing probe, extending from the bottom part of the housing, and/or the housing and to generate output signals to the processing unit, and a power supply unit to supply power to the geolocation unit, the data communication unit and the processing unit; a geolocation antenna and a data communication antenna extending from the top part of the housing; the processing unit processes the output signals from the geophone assembly to determine an occurrence of a seismic event.
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公开(公告)号：US20180254884A1
公开(公告)日：2018-09-06
申请号：US15757368
申请日：2016-08-31
申请人： WESTERNGECO LLC
发明人： Kambiz Iranpour
CPC分类号： H04L7/04 , G01S7/003 , G01S13/87 , G01S15/87 , G01V1/003 , G01V1/164 , G01V3/12 , G01V2200/12 , H04J3/0638 , H04L7/0029 , H04L7/0075 , H04L7/08 , H04L27/26 , H04W56/00
摘要： In some examples, a sensor node comprises a sensor to measure survey data of a target structure. The sensor node receives a wireless synchronization signal, and synchronizes an operation of the sensor node based on the wireless synchronization signal.
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公开(公告)号：US20170211375A1
公开(公告)日：2017-07-27
申请号：US15302095
申请日：2014-12-05
发明人： Paul F. RODNEY , Paul Andrew COOPER
CPC分类号： E21B47/12 , E21B47/00 , E21B47/01 , G01V1/26 , G01V2200/12 , G04D7/003 , H03B5/02 , H03B5/32
摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive a derived clock signal downhole, the derived clock signal being derived from a surface clock signal (associated with a surface clock), such that the frequency of the derived clock signal is less than the frequency of the surface clock signal. Further activity may include measuring the frequency of the derived clock signal in terms of an uncorrected downhole clock frequency (associated with a downhole clock) to provide a measured frequency equivalent, and correcting time measurements made using the downhole clock, based on the measured frequency equivalent, or based on an actual frequency of the downhole clock determined according to the measured frequency equivalent. Additional apparatus, systems, and methods are described.
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4.发明授权Apparatus for correcting the timing function in a nodal seismic data acquisition unit 有权用于校正节点地震数据采集单元中的定时功能的装置公开(公告)号：US09465124B2
公开(公告)日：2016-10-11
申请号：US12907713
申请日：2010-10-19
摘要： A wireless seismic data acquisition unit with a wireless receiver providing access to a common remote time reference shared by a plurality of wireless seismic data acquisition units in a seismic system. The receiver is capable of replicating local version of remote time epoch to which a seismic sensor analog-to-digital converter is synchronized. The receiver is capable of replicating local version of remote common time reference for the purpose of time stamping local node events. The receiver is capable of being placed in a low power, non-operational state over periods of time during which the seismic data acquisition unit continues to record seismic data, thus conserving unit battery power. The system implements a method to correct the local time clock based on intermittent access to the common remote time reference. The method corrects the local time clock via a voltage controlled oscillator to account for environmentally induced timing errors. The invention further provides for a more stable method of correcting drift in the local time clock.
摘要翻译： 一种具有无线接收器的无线地震数据获取单元，其提供对由地震系统中的多个无线地震数据采集单元共享的公共远程时间基准的访问。 接收机能够复制地震传感器模拟 - 数字转换器同步的远程时间历史的本地版本。 接收机能够复制本地版本的远程公共时间参考，以便时间戳本地节点事件。 接收机能够在一段时间内被置于低功率，非操作状态，在此期间地震数据采集单元继续记录地震数据，从而节省单位电池电量。 该系统实现了一种基于间歇访问公共远程时间参考来校正本地时钟的方法。 该方法通过压控振荡器校正本地时钟，以解决环境引起的定时误差。 本发明还提供了一种更稳定的校正本地时钟漂移的方法。
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公开(公告)号：US20160061972A1
公开(公告)日：2016-03-03
申请号：US14837286
申请日：2015-08-27
申请人： SERCEL
发明人： Jérôme LAINE
摘要： A seismic node, in a seismic data acquisition system, includes a housing having an input receiving analog seismic data and an output supplying corrected series of digital sampled and dated seismic data; a single local clock located inside the housing and configured to generate an inaccurate local clock signal (CLK); a gauging circuit configured to measure a frequency drift and a phase error of the local clock signal (CLK) based on received synchronization information; an analog-to-digital converter located inside the housing and configured to process the analog seismic signal based on the local clock signal (CLK) and to provide a series of digital sampled and dated seismic data; and a correcting circuit for generating the corrected series of digital sampled and dated seismic data based at least on the measured frequency drift and phase error of the local clock signal (CLK).
摘要翻译： 在地震数据采集系统中的地震节点包括具有接收模拟地震数据的输入和提供经校正的数字采样和过期地震数据系列的输出的壳体; 位于壳体内的单个本地时钟，并被配置为产生不准确的本地时钟信号（CLK）; 测量电路，被配置为基于接收到的同步信息来测量本地时钟信号（CLK）的频率漂移和相位误差; 位于壳体内的模拟数字转换器，其被配置为基于本地时钟信号（CLK）处理模拟地震信号，并提供一系列数字采样和过期的地震数据; 以及校正电路，用于至少基于所测量的本地时钟信号（CLK）的频率漂移和相位误差来产生经校正的一系列数字采样和过期的地震数据。
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公开(公告)号：US09217804B2
公开(公告)日：2015-12-22
申请号：US13636765
申请日：2011-03-24
IPC分类号： G01V1/38
CPC分类号： G01V1/38 , G01V1/24 , G01V2200/12
摘要： A method for identifying clock timing discrepancies in at least one clock of interest that is associated with a marine seismic receiver, comprises collecting from at least one marine receiver other than the receiver of interest a first data set corresponding to a selected time period, said first data set being selected to include ocean wave signals; collecting from the receiver of interest a second data set corresponding to the selected time period, said second data set being selected to include ocean wave signals; applying a mathematical prediction technique to the ocean wave signals in the first data set so as to generate a predicted response for a receiver co-located with the receiver of interest; comparing the predicted response to the second data set so as to generate a correlation data set; and using the correlation data set to determine a corrected parameter for the receiver of interest.
摘要翻译： 一种用于识别与海洋地震接收机相关联的至少一个感兴趣时钟中的时钟定时差异的方法，包括从至少一个海洋接收机收集不同于感兴趣的接收机的第一数据集，所述第一数据集对应于所选择的时间段，所述第一 选择数据集包括海浪信号; 从感兴趣的接收机收集对应于所选择的时间段的第二数据集，所述第二数据集被选择为包括海洋波信号; 对第一数据集中的海浪信号应用数学预测技术，以便产生与感兴趣的接收机共处的接收机的预测响应; 将所述预测响应与所述第二数据集进行比较，以生成相关数据集; 以及使用相关数据集来确定感兴趣的接收机的校正参数。
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公开(公告)号：US09103940B2
公开(公告)日：2015-08-11
申请号：US13513206
申请日：2010-12-02
IPC分类号： G01V1/38
CPC分类号： G01V1/38 , G01V1/3817 , G01V2200/12
摘要： A method for identifying clock timing discrepancies in a plurality of clocks that are each associated with a seismic receiver, comprises the steps of collecting from at least a pair of receivers a data set corresponding to a selected time period, cross-correlating the data sets between at least one pair of receivers so as to produce cross-correlated data for positive, zero, and negative time lags, comparing the cross-correlated data for the positive and negative time lags to measure a timing asymmetry about the zero-lag time, and, for a receiver pair for which there is a non-zero timing asymmetry, using the asymmetry to identify a timing discrepancy between the clocks associated with that receiver pair. The each data set can be filtered so as to obtain data in a selected frequency range, which may avoid an active shot frequency. The data may be collected in the absence of active seismic shots.
摘要翻译： 一种用于识别与地震接收机相关联的多个时钟中的时钟定时差异的方法，包括以下步骤：从至少一对接收机收集对应于所选择的时间段的数据集，将数据集相互关联， 至少一对接收器，以产生正，零和负时间滞后的相互关联的数据，比较正和负时间滞后的交叉相关数据以测量关于零时滞时间的定时不对称性，以及 对于存在非零定时不对称的接收机对，使用不对称来识别与该接收机对相关联的时钟之间的时序差异。 可以对每个数据集进行滤波，以获得所选频率范围内的数据，这可以避免有效拍摄频率。 可以在没有主动地震拍摄的情况下收集数据。
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公开(公告)号：US09030914B2
公开(公告)日：2015-05-12
申请号：US13438765
申请日：2012-04-03
申请人： Jacques Y. Guigné , Nicholas G. Pace , Adam Gogacz , Gary Dinn
发明人： Jacques Y. Guigné , Nicholas G. Pace , Adam Gogacz , Gary Dinn
CPC分类号： G01S7/52003 , G01S7/521 , G01S7/536 , G01S15/88 , G01S15/8904 , G01V1/20 , G01V1/3808 , G01V1/3835 , G01V1/3852 , G01V2200/12 , Y10S367/90 , Y10S367/902
摘要： A method for imaging formations below the bottom of a body of water includes imparting acoustic energy into the formations along a predetermined length swath at a selected geodetic position. Acoustic energy reflected from the formations is detected along a line parallel to the length of the swath. The selected geodetic position is moved a selected distance transverse to the length of the swath. The imparting acoustic energy, detecting acoustic energy and moving the geodetic position are repeated until a selected distance transverse to the length of the swath is traversed. The detected acoustic energy from all the selected geodetic positions is coherently stacked. The detected acoustic energy is beam steered to each of a plurality of depths and positions along the length of the swath to generate an image for each such depth and position.
摘要翻译： 用于对水体底部下方的成像成像的方法包括在选定的大地测量位置沿着预定长度的条带将声能传递到地层中。 沿平行于条纹长度的线检测从地层反射的声能。 所选择的大地测量位置横向于条带的长度移动一个选定的距离。 重复传递的声能，检测声能和移动大地测量位置，直到穿过横向于条的长度的选定距离。 来自所有选定大地测量位置的检测到的声能被相干地堆叠。 检测到的声能被光束转向到沿着条带的长度的多个深度和位置中的每一个，以产生每个这样的深度和位置的图像。
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9.发明授权System and method for accurate determination of ocean bottom seismometer positioning and timing 有权准确测定海底地震仪定位和定时的系统和方法公开(公告)号：US08995222B2
公开(公告)日：2015-03-31
申请号：US13102228
申请日：2011-05-06
申请人： Ganyuan Xia , Gerard Beaudoin
发明人： Ganyuan Xia , Gerard Beaudoin
IPC分类号： G01V1/38
CPC分类号： G01V1/3817 , G01V2200/12 , G01V2200/14
摘要： There is provided herein a system and method of seismic exploration that produces improved locations and timings for ocean bottom seismometers. The instant method utilizes linearized inversion in conjunction with a conventionally accurate clock to provide both time and positioning for each OBS unit with high accuracy as compared with the prior art approach. Inversion is one mathematical tool that effectively performs the requisite triangulation. Furthermore, the clock drift can be accounted for in the inversion scheme. The inversion not only determines the OBS position and shot timing errors, but also estimates the accuracy of the position and timing determination.
摘要翻译： 这里提供了一种地震勘探的系统和方法，其产生用于海底地震仪的改进的位置和定时。 与现有技术的方法相比，本方法利用线性化反转与传统精确的时钟相结合，为每个OBS单元提供高精度的时间和定位。 反转是一种有效执行必要三角测量的数学工具。 此外，在反演方案中可以考虑时钟漂移。 反转不仅决定了OBS位置和拍摄定时误差，还估计了位置和时序确定的准确性。
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公开(公告)号：USRE45268E1
公开(公告)日：2014-12-02
申请号：US13952135
申请日：2013-07-26
IPC分类号： G01V1/00
CPC分类号： G01V1/24 , G01V1/16 , G01V2200/12
摘要： A seismic exploration method and unit comprised of continuous recording, self-contained wireless seismometer units or pods. The self-contained unit may include a tilt meter, a compass and a mechanically gimbaled clock platform. Upon retrieval, seismic data recorded by the unit can be extracted and the unit can be charged, tested, re-synchronized, and operation can be re-initiated without the need to open the unit's case. The unit may include an additional geophone to mechanically vibrate the unit to gauge the degree of coupling between the unit and the earth. The unit may correct seismic data for the effects of crystal aging arising from the clock. Deployment location of the unit may be determined tracking linear and angular acceleration from an initial position. The unit may utilize multiple geophones angularly oriented to one another in order to redundantly measure seismic activity in a particular plane.
摘要翻译： 一种地震勘探方法和单元，由连续记录，独立无线地震仪单元或舱组成。 独立单元可以包括倾斜仪，罗盘和机械万向钟时钟平台。 检索后，可以提取单元记录的地震数据，并对单元进行充电，测试，重新同步，可以重新启动操作，无需打开设备的外壳。 该单元可以包括附加的地震检波器以机械地振动该单元以测量该单元与地球之间的耦合程度。 该单元可以校正地震数据，了解时钟产生的晶体老化的影响。 可以确定单元的部署位置，从初始位置跟踪线性和角加速度。 该单元可以利用多个地震检波器，以便彼此成角度地定向，以便冗余地测量特定平面中的地震活动。
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