公开(公告)号：US20050047275A1

公开(公告)日：2005-03-03

申请号：US10693298

申请日：2003-10-25

申请人： Donald Chamberlain ,  Norman Heidebrecht

发明人： Donald Chamberlain ,  Norman Heidebrecht

IPC分类号： G01V1/22 ,  G01V1/26 ,  G01V1/16

CPC分类号： G01V1/22 ,  G01V1/26

摘要： A network distributed seismic data acquisition system comprises seismic receivers, connected to remote acquisition modules, receiver lines, line tap units, base lines, central recording system and a seismic source event generation unit. Global positioning system receivers of full or partial capability are combined with some of these modules and units and a master global positioning receiver aids the distributed receivers. The global positioning receivers may be used to synchronize high precision clocks as well as to provide positioning information. A master clock is designated and one or more high precision clocks is added to the network to correct for timing uncertainty associated with propagation of commands through the network. Seismic receivers and seismic sources are thereby synchronized with greater accuracy than otherwise possible, thus enabling an improvement in subsurface geologic imaging.

摘要翻译： 网络分布式地震数据采集系统包括连接到远程采集模块，接收机线路，线路抽头单元，基线，中央记录系统和地震源事件发生单元的地震接收机。 具有全部或部分能力的全球定位系统接收机与这些模块和单元中的一些组合，并且主全球定位接收器有助于分布式接收机。 全球定位接收机可用于同步高精度时钟以及提供定位信息。 指定主时钟，并向网络添加一个或多个高精度时钟，以校正与通过网络传播命令相关的时序不确定性。 因此，地震接收器和地震源以比其他方式更高的精度同步，从而能够改进地下地质成像。

公开(公告)号：US20070198207A1

公开(公告)日：2007-08-23

申请号：US11787333

申请日：2007-04-16

申请人： Norman Heidebrecht

发明人： Norman Heidebrecht

IPC分类号： G06F19/00

CPC分类号： G01V3/28 ,  G01S19/05 ,  G01S19/44 ,  G01V1/003 ,  G01V1/16 ,  G01V1/22 ,  G01V1/26

摘要： A system for analyzing three-dimensional seismic data includes a plurality of digitizer units, each with a configuration of geophones, a data recording and control center, a base GPS receiver with an associated antenna with a substantially unrestricted view of the sky and at the respective digitizer units low-power slave GPS receivers that acquire and track GPS satellite signals using tracking assistance information provided by the base GPS receiver. The slave GPS receivers use the tracking assistance information to acquire and track GPS satellite signals that may be relatively weak at the receivers, due to conditions at the site, such as foliage canopies and so forth. The system processes range information provided by the slave GPS receivers over an extended period of time. In this way, the precise positions of the respective slave GPS receivers, and thus, the digitizer units, can be calculated, even if the slave GPS receivers are able to observe and collect data from sets of two or more satellites for only three or four relatively short time intervals at various sky positions during the extended period. The slave GPS receivers then locally produce for the digitizer units timing signals that are based on the GPS codes and synchronized across the system. If a given slave GPS receiver cannot, at a given time, track any GPS satellite signals, a nearby slave GPS receiver supplies the timing information required for the geophone data gathering operations.

摘要翻译： 用于分析三维地震数据的系统包括多个数字化仪单元，每个数字化仪单元具有地震检波器的配置，数据记录和控制中心，具有相关天线的基本GPS接收器，其具有天空的基本上无限制的视图， 数字转换器单元低功率从站GPS接收机，采用GPS卫星信号采集和跟踪GPS接收机提供的跟踪辅助信息。 从属GPS接收机使用跟踪辅助信息来获取和跟踪在接收机处可能相对较弱的GPS卫星信号，这是由于现场的状况，例如叶面檐篷等等。 该系统在较长时间内处理由从属GPS接收机提供的范围信息。 以这种方式，即使从属GPS接收机能够观察和收集来自两个或更多个卫星的数据的数据只能三或四个，也可以计算各个从属GPS接收机以及因此数字转换器单元的精确位置 在长时间内在各种天空位置的相对较短的时间间隔。 然后，从属GPS接收机本地产生用于数字转换器单元的基于GPS代码并基于系统同步的定时信号。 如果给定的从属GPS接收机在给定时间不能跟踪任何GPS卫星信号，则附近的从属GPS接收器提供地震检波器数据采集操作所需的定时信息。

公开(公告)号：US20070253289A1

公开(公告)日：2007-11-01

申请号：US11805798

申请日：2007-05-24

申请人： Donald Chamberlain ,  Norman Heidebrecht

发明人： Donald Chamberlain ,  Norman Heidebrecht

IPC分类号： G01V1/28

CPC分类号： G01V1/26 ,  G01V1/22

摘要： A network distributed seismic data acquisition system comprises seismic receivers connected to remote acquisition modules, receiver lines, line tap units, base lines, a central recording system and a seismic source event generation unit synchronized to a master clock. One or more high precision clocks is added to the network to correct for timing uncertainty associated with propagation of commands through the network. Seismic receivers and seismic sources are thereby synchronized with greater accuracy than otherwise possible. Timing errors that interfere with the processing of the seismic recordings are greatly reduced, thus enabling an improvement in subsurface geologic imaging.

摘要翻译： 网络分布式地震数据采集系统包括连接到与主时钟同步的远程采集模块，接收机线路，线路抽头单元，基线，中央记录系统和地震源事件生成单元的地震接收机。 一个或多个高精度时钟被添加到网络中以校正与通过网络的命令的传播相关联的定时不确定性。 因此，地震接收器和地震源以比其他方式更高的精度同步。 干扰地震记录处理的定时误差大大降低，从而能够改善地下地质成像。

公开(公告)号：US20070213936A1

公开(公告)日：2007-09-13

申请号：US11537719

申请日：2006-10-02

申请人： Patrick Fenton ,  Norman Heidebrecht

发明人： Patrick Fenton ,  Norman Heidebrecht

IPC分类号： G01V1/00

CPC分类号： G01V3/28 ,  G01S19/05 ,  G01S19/44 ,  G01V1/003 ,  G01V1/16 ,  G01V1/22 ,  G01V1/26

摘要： A system for analyzing three-dimensional seismic data includes a plurality of digitizer units, each with a configuration of geophones, a data recording and control center, a base GPS receiver with an associated antenna with a substantially unrestricted view of the sky and at the respective digitizer units low-power slave GPS receivers that acquire and track GPS satellite signals using tracking assistance information provided by the base GPS receiver. The slave GPS receivers use the tracking assistance information to acquire and track GPS satellite signals that may be relatively weak at the receivers, due to conditions at the site, such as foliage canopies and so forth. The system processes range information provided by the slave GPS receivers over an extended period of time. In this way, the precise positions of the respective slave GPS receivers, and thus, the digitizer units, can be calculated, even if the slave GPS receivers are able to observe and collect data from sets of two or more satellites for only three or four relatively short time intervals at various sky positions during the extended period. The slave GPS receivers then locally produce for the digitizer units timing signals that are based on the GPS codes and synchronized across the system. If a given slave GPS receiver cannot, at a given time, track any GPS satellite signals, a nearby slave GPS receiver supplies the timing information required for the geophone data gathering operations.

摘要翻译： 用于分析三维地震数据的系统包括多个数字化仪单元，每个数字化仪单元具有地震检波器的配置，数据记录和控制中心，具有相关天线的基本GPS接收器，其具有天空的基本上无限制的视图， 数字转换器单元低功率从站GPS接收机，采用GPS卫星信号采集和跟踪GPS接收机提供的跟踪辅助信息。 从属GPS接收机使用跟踪辅助信息来获取和跟踪在接收机处可能相对较弱的GPS卫星信号，这是由于现场的状况，例如叶面檐篷等等。 该系统在较长时间内处理由从属GPS接收机提供的范围信息。 以这种方式，即使从属GPS接收机能够观察和收集来自两个或更多个卫星的数据的数据只能三或四个，也可以计算各个从属GPS接收机以及因此数字转换器单元的精确位置 在长时间内在各种天空位置的相对较短的时间间隔。 然后，从属GPS接收机本地产生用于数字转换器单元的基于GPS代码并基于系统同步的定时信号。 如果给定的从属GPS接收机在给定时间不能跟踪任何GPS卫星信号，则附近的从属GPS接收器提供地震检波器数据采集操作所需的定时信息。