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About the Characteristics of Reflected S-waves in the Arabian Gulf
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE Workshop on Broadband Seismic, Nov 2015, Volume 2015, p.1 - 5
Abstract
Summary
One way to increase the bandwidth is to include other wave modes than only P-waves. So far OBC (Ocean Bottom Cable) seismic data in the UAE has been used to extract P-wave information only. In previous work we have demonstrated that we should expect to find S-waves in this area, this because of the special local geology and the shallow water depth. These events (S-down and S-up) have a fairly simple ray-path, much like the P-waves, but a much more complicated PVO (Phase versus offset) structure with typically several phase changes within normal offset ranges, say 5000 meter. This implies that the processing will have to be interactive, a combination of modeling and processing. Lately we have demonstrated that we can indeed observe these events, S-down and S-up, which we believe is a “first” in this region. In this work we illustrate how these waves are extracted and give an example on their possible use.
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