Patent ID: 6418079
Filing Date: 2002-07-09
Classification: G01V

Abstract:
A method of acquiring seismic data using a plurality of seismic vibratory sources, the method comprising:(a) generating a plurality of sweep segments, each of said plurality of sweep segments including: (i) a first sweep having a start time, an ending time, a starting frequency and an ending frequency, and (ii) a second sweep having a start time less than the ending time of the first sweep, an ending time, a starting frequency substantially equal to the ending frequency of the first sweep, and an ending frequency; (b) using said plurality of sweep segments for driving said plurality of seismic vibratory sources, thereby generating a seismic signal that propagates into the earth; (c) recording uncorrelated seismic data resulting from reflections of said seismic signal from subterranean earth formations; and (d) processing said recorded uncorrelated seismic data to obtain information about the subterranean earth formations.