Model-based depth processing of seismic data

Details Model-based depth processing of seismic data Model-based depth processing of seismic data

1989-01-06

1990-08-28

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 53, G01V 128

Patent

active

049531425

ABSTRACT:
A model-based iterative method of depth-processing seismic data. An estimate of a geologic horizon is entered into a three-dimensional seismic model and synthetic shot records are determined from the model. Reflection tracks are estimated from the modeling results. The actual seismic traces are sorted into bins according to common reflection points determined from the reflection tracks and are stacked. The sorted and stacked data are used to estimate the difference between the seismic travel time and the model travel time, and the model is changed in order to match the seismic data. The process is repeated until the margin of error is acceptable. Lower horizons of interest are modeled in the same way until all the horizons of interest in a geological area are determined.

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"Trends in Seismic Data Processing," French, W. S., Geophysics, The Leading Edge of Exploration, Sep. 1986, pp. 38-45 & 110.
"Seismic Lithologic Modeling;" Western Geophysical Brochure, 1983.

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