SYSTEMS AND METHODS FOR PRE-CORRELATION NOISE ATTENTUATION USING RANDOM SWEEPS IN SEISMIC DATA PROCESSING

摘要

A method for attenuating noise in seismic data signals is described wherein seismic signals are transmitted using a pseudo-random frequency sweep signal. Noise is then attenuated from the resulting, acquired seismic data on pre-phase subtraction basis, e.g., before correlating or de-convolving the acquired seismic data. In this way, repetitions associated with, for example, diversity stacking techniques can be avoided.

主权项

1. A method for attenuating noise in seismic data signals comprising:
transmitting a pseudo-random frequency sweep signal; acquiring seismic data resulting from said transmitted pseudo-random frequency sweep signal; and attenuating noise from said acquired seismic data signals on a pre-phase subtraction basis.