Receiver static correction of PS-wave using prestack data in the receiver domain

Saul E. Guevara, and Gary F. Margrave

ABSTRACT

A method for receiver statics correction of the converted wave is proposed. It is based on the observation that the static time delay on PS-wave events between two adjacent receivers, after the source statics correction, should correspond mostly to the differential receiver statics. The method does not require stack or a velocity model for PS-waves. It follows the surface consistent statics model applied to Common Receiver Gathers. Crosscorrelations of the corresponding traces after minimizing the NMO differential and assuming small structural component, are calculated and then stacked. The differential statics time delay should correspond to the maximum of this stack. Tests on synthetic data illustrate the resulting statics.

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