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Seismic-data acquisition methods and apparatus

  • US 7,298,671 B2
  • Filed: 04/28/2005
  • Issued: 11/20/2007
  • Est. Priority Date: 04/24/2002
  • Status: Expired due to Fees
First Claim
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1. A self-contained data acquisition unit for acquiring seismic data, the data acquisition unit comprising:

  • a microprocessor;

    an antenna adapted to receive an electromagnetic signal;

    a decoder connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“

    DTMF”

    ) digits;

    a geophone interface with a geophone for collecting seismic data incident on the geophone;

    a memory connected with the geophone interface for storing a representation of the collected seismic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing seismic data collected by other data acquisition units; and

    a battery power source connected with the microprocessor.

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