Compensating seismic data for source variations

摘要

A technique includes modeling a fundamental component of a vibroseis sweep that is injected into the earth based on a ground force measurement and a reference sweep. The technique includes determining an operator to compensate seismic data acquired in response to the injected vibroseis sweep based at least in part on the reference sweep and the fundamental component, and the technique includes applying the operator to the seismic data.

主权项

1. A method comprising:
processing data indicative of a ground force measurement in a processor-based machine to model a fundamental component of a vibroseis sweep injected into the earth based at least in part on the ground force measurement and a reference sweep signal, the modeling comprising comparing the ground force measurement to the reference sweep signal to determine a filter to apply to the ground force measurement and applying the filter to the ground force measurement to determine the fundamental component; determining an operator to compensate seismic data acquired in response to the injected vibroseis sweep based at least in part on the reference sweep and the fundamental component; and applying the operator to the seismic data.