Method of removing records of multiple reflection events from se

Details Method of removing records of multiple reflection events from se Method of removing records of multiple reflection events from se

1990-07-16

1991-09-24

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 38, 367 54, G01V 136, G01V 138

Patent

active

050519603

ABSTRACT:
A method of removing multiple reflection events from seismic records is described. A shallow primary reflection event is used as a model for a deeper primary, and is distorted responsive to the predicted static correction to yield a model for the multiple. The method is applied to common depth point (CDP) records, in which the common-midpoint contribution of the multiple to each CDP record can be assumed to be equal. Preferably, a total least squares correlation step is used to design a convolutional filter applied to the data records to remove the multiples therefrom.

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