Patent ID: 8902702
Filing Date: 2014-12-02
Classification: G01V

Abstract:
1. A method of acoustic subsurface imaging, the method comprising: generating acoustic waves with a downhole acoustic transmitter; receiving the acoustic waves and acoustic data contained therein at one or more downhole acoustic receivers; filtering for one or more S-S, P-S or S-P reflected waveform data from the acoustic data; estimating a dip of the one or more S-S, P-S or S-P reflected waveform data; migrating the one or more S-S P-S or S-P reflected waveform data with the estimated dip; mapping the migrated one or more S-S, P-S or S-P reflected waveform data; and identifying one or more permeable subsurface karst caves using the mapped migrated one or more S-S, P-S or S-P reflected waveform data.