Low frequency passive seismic data acquisition and processing
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United States of America Patent
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Sep 1, 2015
Grant Date -
Sep 11, 2014
app pub date -
Mar 11, 2013
filing date -
Mar 11, 2013
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Abstract
Low sensitivity, single vertical axis or uniaxial transducer sensors are deployed along receiver lines across an area of interest to acquire low frequency passive seismic data from the earth. Recordings formed of the acquired low frequency passive seismic data are decomposed in the frequency-wavenumber (F-K) domain according to wavefront dipping angles into mono-dominant velocity seismic records. Resulting seismic waves of different types are identifiable based on the different dipping angles. Wavefields can then be analyzed separately in either time or frequency domains and analyzed or integrated with other data.
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