Patent ID: 6169959
Filing Date: 2001-01-02
Classification: G01V

Abstract:
A method of determining at least one multiple traveltime on a seismic survey from a specified source location to a specified receiver location, the seismic survey having a plurality of primary reflections thereon, each of said plurality of primary reflections having a source location, a receiver location, a reflecting interface and a traveltime associated therewith, the method comprising; (a) determining a first traveltime for a primary reflection from a source at the specified source location and a receiver at an interim location; (b) determining a second traveltime for a primary reflection from a source at the interim location and a receiver at the specified receiver location;(c) obtaining a summed traveltime as a sum of the first traveltime and the second traveltime; (d) repeating (a)-(c) for a plurality of interim locations to give a plurality of summed traveltimes; and (e) determining the traveltime for the multiple reflection as a minimum of the plurality of summed traveltimes.