海洋産出試験計画と適用技術(<特集>海底下に眠るメタンハイドレート資源の開発に向けて-研究開発の最新動向I)

概要

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Twice offshore gas production tests for submarine methane hydrate deposits are planned to be performed in Japanese waters during the phase two program of MH21 research consortium for methane hydrate resources in Japan (2009 to 2015). These field trials are necessary paths to develop production techniques of those unconventional hydrocarbon resources. The past studies using numerical models and laboratory apparatuses along with field tests in a permafrost region have proved the effectiveness of simple depressurization under particular conditions, and the same method will be applied to the deepwater sediments in the first test that is planned in the early 2013. For the stable production, there are several engineering challenges such as flow assurance, sand control and control of geomechanical issues, environmental protection, etc. Technologies for the petroleum production will be fully utilized to solve the problems.
2011-12-20