2D and 3D refraction statics via tomographic inversion with under-relaxation
C.G. Macrides and L.P. Dennis
Journal name: First Break
Issue: Vol 12, No 10, October 1994 pp. 523 - 537
Info: Article, PDF ( 2.53Mb )
Price: € 30
The computation of refraction static corrections is a difficult but important step towards obtaining reliable seismic stacked sections, particularly with land data. The difficulty lies in the high degree of variability of thickness and velocity of near surface layers. The importance lies in the fact that if subsequent processing tools such as velocity analysis, residual reflection statics and migration are to perform optimally it is imperative to first resolve the major sta tics problems using refraction techniques capable of broadband solutions.