Time synchronization for seismic exploration system
First Claim
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1. A system for synchronizing and collecting seismic data from a plurality of locations in a seismic field in which a seismic signal is transmitted, said system comprising:
- a plurality of seismic sensor devices configured to collect seismic information based upon the seismic signal transmitted;
at least one positioning system receiver configured to receive positioning signals and timing information;
time control logic configured to compute a time based upon the received timing information;
a seismic data collection device configured to generate a plurality of records of measurement data comprising seismic information and the time of collection of the seismic information, said time determined by the time control logic;
a post processor configured to receive the records of measurement data and extract records comprising a time of collection within a specified time window of interest.
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Abstract
A system and method for synchronizing collection of seismic data used for seismic surveys. In one embodiment, positioning signals received from a positioning system, such as the Global Positioning System, are used to acquire a highly accurate time value. Data collection is then initiated at a prespecified time using the time determined from the positioning signal.
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Citations
23 Claims
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1. A system for synchronizing and collecting seismic data from a plurality of locations in a seismic field in which a seismic signal is transmitted, said system comprising:
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a plurality of seismic sensor devices configured to collect seismic information based upon the seismic signal transmitted; at least one positioning system receiver configured to receive positioning signals and timing information; time control logic configured to compute a time based upon the received timing information; a seismic data collection device configured to generate a plurality of records of measurement data comprising seismic information and the time of collection of the seismic information, said time determined by the time control logic; a post processor configured to receive the records of measurement data and extract records comprising a time of collection within a specified time window of interest. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10)
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3. A method for synchronizing and collecting seismic data from a plurality of locations in a seismic field in which a seismic signal is transmitted, said method comprising the steps of:
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receiving signals from a positioning system, said signals comprising timing information; determining a time based upon the timing information; collecting seismic data at approximately the time signals are received from the positioning system; generating data records comprising seismic data and the approximate time of collection determined from the timing information; post processing the data records to extract data records comprising a time within a specified window of interest. - View Dependent Claims (4, 11, 12)
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13. A system for collecting seismic data from a plurality of locations in a seismic field in which a seismic signal is transmitted, said system comprising:
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a plurality of seismic sensor devices configured to collect seismic information based upon the seismic signal transmitted; at least one positioning system receiver configured to receive positioning signals and timing information; time control logic configured to compute a time based upon the received timing information; a seismic data collection device configured to generate a plurality of records of measurement data comprising seismic information and the time of collection of the seismic information, said time determined by the time control logic; and an output configured to output the records of measurement data. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for collecting seismic data from a plurality of locations in a seismic field in which a seismic signal is transmitted, said method comprising the steps of:
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receiving signals from a positioning system, said signals comprising timing information; determining a time based upon the timing information; collecting seismic data at approximately the time signals are received from the positioning system; generating data records comprising seismic data and the approximate time of collection determined from the timing information; and outputting the records of measurement data. - View Dependent Claims (21, 22, 23)
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Specification