Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1995-05-08
1997-06-24
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 38, G01V 136
Patent
active
056423284
ABSTRACT:
A method for determining the reliability of time processed seismic reflection data near a significant velocity differential overhang includes displaying the seismic reflection data as a seismic section showing impedance differential interfaces. The position of an edge of the velocity differential overhang is located and acoustic velocity values are interpreted. A set of curves representing boundaries of reliability for predetermined dip values is determined. The set of curves representing boundaries of reliability may be displayed. The display of the set of curves representing boundaries of reliability may be overlaid on the seismic section representing the seismic reflection data. The dip angle for an interface of interest is approximated. The interface of interest is compared with the curve representing boundaries of reliability for the dip angle for the interface of interest to determine the extent of reliability of the data used to map the end of the interface under the overhang.
REFERENCES:
patent: 5157637 (1992-10-01), Wang
patent: 5189643 (1993-02-01), Wang et al.
patent: 5235555 (1993-08-01), Albertin
Houck Richard T.
House-Finch Nancy J.
Keen M. D.
Lobo Ian J.
Mobil Oil Corporation
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