Method of seismic processing

Details Method of seismic processing Method of seismic processing

1993-03-24

1997-07-15

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 25, 364421, 364422, G01V 132

Patent

active

056489390

ABSTRACT:
A seismic processing method relating finely sampled data of earth formations, such as that obtained from borehole measurements, to substantially longer wavelength seismic data, such as that obtained from surface seismic surveys or the like, while improving the ease of manipulation and processing speed of seismic processing. In a preferred embodiment, a fine layer model having n layers is defined, with the properties of each fine layer corresponding to the properties of each of n sampling points. An equivalent model is constructed by defining m equivalent layers, where m is substantially smaller than n and the thickness of the thickest of the equivalent layers is substantially smaller than a predetermined dominant wavelength of a seismic signal. Equivalent formation properties are generated for each equivalent layer by combining the sampled formation properties of the fine layers within the respective equivalent layer, preferably in accordance with the equivalent medium theory. A synthetic seismogram is derived from the equivalent model and the seismic signal.

REFERENCES:
Schoenberg et al., "A calculus for finely layered anisotropic media" Geophysics (May 1989), pp. 581-589.
Hsu et al., "Seismic Velocities and Anisotropy from High-Resolution Sonic Logs", Seismograms in proceedings of 58th Annual Society of Exploration Geologists International Meeting (1988) Paper DEV 1.2, pp. 114-116.
Esmersoy, et al., "Quantitative Analysis of Fine Layering Effects: Medium Averaging versus Synthetic Seismograms" in proceedings of 59th Annual Society of Exploration Geologists International Meeting (Oct. 29-Nov. 2, 1989 in Dallas, Texas) Paper SM 3.4, pp. 1083-1085.
Schoenberg et al., "Group Theoretic Formulation for Elastic Properties of Media Composed of Anisotropic Layers" in Elastic Wave Propagation M.F. McCarthy, M.A. Hayes editors (1989: Elsevier Science) pp. 259-264.
Folstad et al., "Use of Equivalent Anisotropic Medium Theory to Calculate Synthetic AVO Response" in the proceedings of the Joint SEG/EAEG Summer Research Workshop (Aug. 9-14, 1992 in Big Sky, Montana) pp. 614-621.
Folstad et al., "Low Frequency Propagation through Fine Layering" presented at the proceedings of the 62nd Annual Society of Exploration Geologists International Meeting (1992).
Folstad et al., "Scattering from a Set of Anistropic Layers to Second Order in Frequency" in the proceedings of EAEG 55th Annual Meeting and Technical Exhibition (Jun. 7-11, 1993 in Stavanger, Norway) Paper P105.
Esmersoy et al, 59th Annu. Soc. Explor. Geoghy Int. Org., Oct. 29, 1989, vol. 2, pp. 1083-1085, Abst. Algorithm.
Bush, I., 53rd EAEG Mtg., May 26, 1991, pp. 1544-1555, Florence, italy; Abst. only herewith.
Hudson et al, Geoghysies, vol. 56, #4, 1991, pp. 572-576; abst. only herewith.
Chang, S. K., 62nd Annu. SEG Int. Mt, Oct. 25, 1992, pp. 1257-1259 (Pap. No. ST2I); abst. only.

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