Modeling and Inversion of Sonic P and S Wave Velocities at the Mallik 5L-38 Gas Hydrate Research Well

Using an interval of real log data from the Mallik 5L-38 Gas Hydrate Research Well, we estimate empirical relations for some mechanical properties of the gas hydrate frame. This is an important problem for geophysical exploration in gas hydrate bearing sediments, a subject which has not received as much attention as it deserves from the researchers in this field.<br><br>The theoretical velocities used to model the sonic logs are computed using a Biot-type formulation combined with known petrophysical models for shaley sandstones.<br><br>The empirical results are also applied to obtain estimates of gas hydrate saturations at a different depth interval from sonic and density log data, showing the applicability of this approach.<br>