EOMAP residual statics: application to Marmousi model data with synthetic statics

Xinxiang Li and John C. Bancroft

ABSTRACT

The equivalent offset mapping (EOMAP) residual statics method was used to estimate the synthetic static time-shifts added in the Marmousi model data, where most conventional methods fail to provide reliable statics estimations. The application results show that the EOMAP method can, in only one iteration and with satisfactory accuracy, estimate residual statics in data from area with complex subsurface velocity structure. In addition, the EOMAP method does not require accurate stacking or migration velocity information and can, in fact, be used without any velocity information at all.

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