SYSTEM AND METHOD FOR EVALUATING A SEISMIC MONITORING SIGNAL RECORDING WITH THE USE OF THE INDICATOR OF A DISPLACED NORMALIZED RMS QUANTITY

摘要

1. A computer-implemented method for evaluating the recording of a seismic monitoring signal using a biased normalized mean square value (SNRS), comprising the steps of: entering into a computer two seismic traces that contain similar or repeating signals; two signals are separated using a computer for analysis from other signals in two seismic traces, and these two signals are time-shifted relative to each other; they determine the normalized cross-correlation of these two signals using a computer fishing at different time shifts between the two signals; determine the optimal time shift closest to the zero time shift at which the normalized cross-correlation is maximum using a computer; calculate the offset normalized rms value with the computer at the optimal time shift; and using a computer, the reproducibility index of the two signals is determined based on the value of the biased normalized rms value. 2. The method according to claim 1, wherein the reproducibility index increases as the value of the biased normalized rms value decreases. The method according to claim 1, wherein when separating the two signals, a time window in two seismic traces is selected. The method according to claim 1, wherein in determining the normalized cross-correlation, the product of the two signals is calculated. The method according to claim 1, wherein, when determining the normalized cross-correlation, the cross-correlation in the time domain or frequency domain of the two signals is determined. The method according to p. 1, in