About OGA KOTARO
About HON'IDEN ATSUO
About 日揮
About 石油技術協会誌
About carbon dioxide fixation
About injection well
About recovery
About productivity enhancement
About Nitrogen
About production well
About coal bed methane
About Industrial exhaust gas treatment
About Oil production and gas production in general
About Environmental problems
About 夕張
About CO2
About 炭層
About 固定化
About 試験
About ECBM