The characterization of sandy deposit must consider the amount/mineralogy of fines.

Particle size, effective stress and capillarity affect the segregation of hydrates.

In-situ hydrate saturation larger than 20% implies methane transport.

Hydrate volume expands 2-to-4 times upon dissociation for interested PT condition.

Latent heat in a reservoir contributes to hydrate dissociation without forming ice.