| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Research Abstract |
Many natural gas deposits were formed due to migration and accumulation of methane generated in deep buried coal. On the other hand, residual methane in coal can also be used as useful natural gas. Characteristics of residual methane in Japanese typical Eocene coal was investigated, showing that coal residual methane is characterized by remarkably high carbon and hydrogen isotope ratios. Resource potential of coal residual methane increases with increasing paleo-temperature which coal experienced in the geologic past.
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