Full Waveform Seismic Modelling for Gas Hydrate Studies

We simulate the seismic response for different models with varying elastic properties to produce a set of plausible seismic signatures for Bottom Simulating Reflectors (BSRs) in different conditions. These simulations are driven by a set of elastic wave equations. We find that the seismic amplitude is very sensitive to the gas hydrates in the host rock. The spatial structure of the reservoir affects the seismic reflection: A thinly-layered reservoir produces noticeably different amplitude strength than a massive reservoir with the same hydrate volume. A model for the occurrence of Double Bottom Simulating Reflector (DBSR) is proposed and validated by real data.