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Reconnaissance des horizons sismiques par analyse factorielle discriminanteNormal access

Author: P. Bois
Journal name: Geophysical Prospecting
Issue: Vol 24, No 4, December 1976 pp. 696 - 718
DOI: 10.1111/j.1365-2478.1976.tb01567.x
Organisations: Wiley
Language: English
Info: Article, PDF ( 1.6Mb )

A complicated geological structure may make it difficult to recognize seismic horizons. This may be the case when blind zones are present, when horizons have to be identified on both sides of a fault, or when lithological facies exhibit a lateral variation.

A method for the recognition of seismic reflections is described. The process takes the dynamic range of seismic information into account as well as the extensive logical possibilities of modern computers. The method implements a factorial discriminant analysis of seismic traces by means of a stepwise iterative process. The reliability of results is studied by examining the a posteriori discrimination between different horizons. If the classification is good, a percentage of well classified reflections is given for each horizon.

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