Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1988-09-12
1989-06-06
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 21, 367 43, 367 63, 364421, G01V 130
Patent
active
048377520
ABSTRACT:
A common bandwidth determination method for two disparate seismic datasets includes developing a weighted average of first least-squares filters assuming the data from the first dataset is the input and the data from the second dataset is the desired output, developing a weighted average of second least-squares filters assuming the data from the second dataset is the input and the data from the first dataset is the desired output, determining a first transfer function from the first weighted average filter design and a second transfer function from the second weighted average filter design, plotting respective amplitude and phase spectra using each of the first and second transfer functions, plotting the product of the amplitude spectra and the sum of the phase spectra and determining the common bandwidth where the amplitude spectra is one and the phase spectra is zero.
REFERENCES:
patent: 3351899 (1967-11-01), Luehrmann et al.
patent: 3460064 (1969-08-01), Giles et al.
patent: 4500978 (1985-02-01), Ziolkowski et al.
"Principles of Least-Squares Filtering", Robinson, E. A. and Treitel, S., 1980, Geophysical Signal Analysis: Englewood Cliffs, N.J. Prentice-Hall.
"A Combined Dynamite-Vibroseis 3-D Survey in the Subalpine Overthrust Zone of Austria", Schimunek and Storbl, Ernst, Jul. 1985, First Break, vol. 3, No. 7.
"Mixed Source Technique in Land Acquisition", Hall, M. A., Jan. 20, 1986, Horizon Exploration Limited, Horizon House, Azalea Drive, Swanley, Kent BR8 8JR, England.
Exxon Production Research Co.
Lobo Ian J.
Tarcza Thomas H.
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