Characterizing Gas Hydrate–Bearing Marine Sediments Using Elastic Properties—Part 1: Rock Physical Modeling and Inversion from Well Logs

Gas hydrates are considered a potential energy source for the future. Rock physics modeling provides insights into elastic response of sediments containing gas hydrates, which is essential identifying using well-log data and seismic attributes. This paper establishes rock model (RPM) by employing effective medium theories to quantify properties hydrates. Specifically, proposed RPM introduces critical hydrate saturation various schemes. Such key factor considers impact on sediment stiffnesses during dynamic process accumulating as pore fillings part solid components. Theoretical illustrates that characteristics exhibit distinct variation trends determined saturation. Numerical tests based confirm technique can be employed rationally predict properties. The compressional wave velocity also developed estimate saturation, gives reliable fit results core measurement data. methods could improve our understanding behaviors providing practical approach estimating their concentrations.