ABSTRACT
Reservoir characterization of methane hydrate data requires a reasonable
estimate of their S-wave velocity behavior. AVO analysis at the bottom
simulating reflector (BSR), which
is the reflection off the bottom of a stable hydrate structure, is a tool to extract this information from surface P-wave data.
Using sonic and density logging data from a recent ODP (Ocean Drilling Program)
cruise at the
Blake Outer Ridge, offshore Florida and Georgia, I evaluate the effect of
different S-wave velocity structures on the seismic BSR amplitudes by
forward seismic modeling. I show that even for an angle coverage of
30 degrees,
S-wave velocity contrasts of about |