Kiyofumi Suzuki, JOGMEC: Japan Oil Gas, and Metals National Corporation, Currently; AIST: National Institute of Advanced Industrial Science and Technology, Chiba (currentry Tsukuba), Japan, Timothy S Collett, USGS, Denver, CO, United States, Ray Boswell, National Energy Technology Laboratory Pittsburgh, Morgantown, WV, United States, Machiko Tamaki, Japan Oil Engineering Co., Ltd, Tokyo, Japan, Norihiro Okinaka, Japan Oil, Gas and Metals National Corporation, Chiba, Japan and Daichi Sato, JOGMEC Japan Oil, Gas and Metals National Corporation, Chiba, Japan