Noise Reduction in Vibroseis Source

Vibroseis production rates are often limited by inter-record harmonic–noise contamination. Whereas this problem is often handled during seismic data processing, this paper presents a noise-reduction method that applies on the source itself. The basic principle is to measure the output noise and to inject adaptively the opposite signal in the source input to converge towards an ideal output. This new method is under patent application and shows efficient results for minimizing distortion noise from a seismic vibrator.