The feasibility of ground-roll noise suppression from 3D seismic data using high-resolution linear Radon transform

Abstract

Ground-roll is a main type of strong noises in petroleum seismic exploration. In oil exploration, ground rolls are treated as some kind of noise contaminating the effective waves. The typical characteristics that enable us to separate surface waves from body waves lie in their difference in velocity and frequency. Significant different features shown in the frequency-velocity (f-v) domain make it possible to separate ground roll noise and effective waves effectively. Ground roll noise suppression in the f-v domain using high resolution linear Radon transform (LRT) is well-established for two-dimension (2D) seismic data (in-line source and receiver spread). Similarly, ground-roll suppression is possible using 2D wavefield transform (e.g., high-resolution linear Radon transform) from 3D seismic data acquired with any acquisition scheme. Theoretical test demonstrates the feasibility of ground-roll noise suppression for three-dimension (3D) seismic data acquired with random acquisition scheme using the proposed method. Keywords—Ground-roll suppression, frequency-velocity domain, 2D wavefield waveform, high-resolution Radon transform, 3D seismic data