Seismic velocity tomography on methane hydrate dissociation process in HiGUMA

Masaki ONO1, Tatsuya Yokoyama1, Hideki Saito2, Makoto Hoshino Dr2 and Eiki Nakayama Mr3, (1)OYO Corporation, Tokyo, Japan, (2)OYO Corporation, Saitama, Japan, (3)OYO Corparation, Saitama, Japan