Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1981-05-20
1984-08-28
Wilbur, Maynard R.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 21, 367 40, 367 47, G01V 136
Patent
active
044687613
ABSTRACT:
A method, when practiced, enhances seismic data so as to suppress noise in the seismic data. The seismic data was generated in a conventional manner by at least one receiver apparatus whose position does not substantially change. The method includes combining at least two elementary seismograms to form noise seismograms containing little or none of the desired signal. The number of different noise seismograms so derived is at least equal to the number of elementary seismograms to be combined to form a final seismogram. The probability distribution of noise is determined for each trace of the noise seismograms from the probability distributions of noise in the traces of the noise seismograms. The most probable form of the desired signals is derived from the probability distribution of noise in the traces of the elementary seismograms to provide the enhanced seismic data.
REFERENCES:
patent: 2794965 (1957-06-01), Kost
patent: 3398396 (1968-08-01), Embree
patent: 4208732 (1980-06-01), Ruehle
"The Kahlmer Filter as a Prediction Error Filter", Otl et al., Geophysical Prospecting, vol. 20, No. 3 Sep. 1972, pp. 549-560.
"Predictive Deconvolution Applied to Long Range Seismic Reflection Observations", Mitchell et al., Pageoph, vol. 96, 1972, pp. 127-132.
Whalen, Anthony D., Datection of Signals in Noise, Academic Press (1971), pp. 363-389, copy in Scientific Library (PTO).
Deutsche Texaco Aktiengesellschaft
Gillespie Ronald G.
Kaiser K. R.
Kulason Robert A.
Ries Carl G.
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