Optimization of sea surface reflection coefficient and source geometry in conventional dual source flip/flop marine seismic acquisition

摘要

In the present paper we demonstrate how redundant near-field data from dual airgun array marine seismic source can be used for estimation of the sea surface reflection coefficient, optimization of the geometry of airgun arrays and inversion for source signatures of individual airguns. The latter allows prediction of accurate 3D far field signatures of the gun arrays. The optimized sea surface reflection coefficient is found as a function of frequency and angle of incidence at the sea surface, and agrees with the Rayleigh model of reflection from rough surfaces.