Patent ID: 9239399
Filing Date: 2016-01-19
CPC Classification: G01V

Claim Text:
1. A method for processing seismic data recorded from a receiver in a borehole from a first seismic source near the surface of the earth, the method comprising: selecting a location for a pseudo-receiver adjacent to a second seismic source and propagating the recorded wavefield from the receiver to the pseudo-receiver using a time delay determined for each of a plurality of receivers, each time delay substantially equal to a first-arrival time between the second seismic source and each of the plurality of receivers; applying each determined time delay to seismic data associated with each of the plurality of receivers to obtain transformed time shifted seismic data on an electronic medium based on a measured first arrival travel time between the second seismic source and the receiver wherein the second seismic source is part of a 3D shot record wherein the transformed seismic data is processed as surface-recorded seismic data.