P009 ACCURATE SEISMIC TRAVELTIME APPROXIMATION AT ALL OFFSETS E. CAUSSE and K. HOKSTAD SINTEF Petroleum Research N-7034 Trondheim Norway. Introduction In conventional reflection seismics data are usually stacked along hyperbolae. However the hyperbolic approximation is generally too inaccurate in the presence of anisotropy or wave mode conversions or in wide-aperture surveys e.g. for subbasalt exploration. One solution to refine the hyperbolic approximation is to use more than two terms of the Taner and Koehler (1969) series: t 2 ' a 0 + a 2 x 2 + a 4 x 4 + a 6 x 6 :::� (1) where x


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error