An improved dual sensor summation method with application to four-component (4-C) seafloor seismic data from the Niger Delta

Difference Odeyovwi Ogagarue, Joseph O Ebeniro
2015 Earth Science Research  
Conventional towed streamer seismic acquisition has proven highly effective over the years for 3D subsurface imaging. However, in areas where water depths are too shallow or where there are too many obstacles for streamer operations, seabed seismic sensors have, in some cases, been employed as an alternative to image the subsurface. Apart from seabed seismic acquisition being extremely expensive compared to surface streamer, seabed seismic data are severely affected by receiver ghosts generated
more » ... er ghosts generated by water column reverberation. We present an improved method of summing the pressure (hydrophone data) and vertical geophone (geophone data) data to reduce the deleterious effects of ghosts and water column reverberations in a seabed seismic data acquired at water depths ranging from 21.1m to 40.0m in the Niger Delta. The method is based on the separation of up and down-going elastic wavefields from the geophone and hydrophone data, and provides an efficient noise rejection and amplitude preservation in the summed data.
doi:10.5539/esr.v4n2p64 fatcat:jc67ticxnnc55bby6zlthkafwe