| 摘要 |
PCT No. PCT/US96/14977 Sec. 371 Date Nov. 19, 1999 Sec. 102(e) Date Nov. 19, 1999 PCT Filed Sep. 18, 1996 PCT Pub. No. WO97/11390 PCT Pub. Date Mar. 27, 1997This invention is a method of attenuating multiples in seismic data, particularly three-dimensional seismic data in which seafloor roughness is present. The method relies on an efficient ray-tracing procedure to determine travel-times for each multiple. The characteristics of the seismic data are used to estimate the waveform of the multiple to be attenuated. The travel-time and the estimated waveform are then used to attenuate the multiple from the original data. The method can be employed both for water-bottom multiples and for source and receiver pegleg multiples. |
