ABSTRACT: Utilization of Methane and Injection of Carbon Dioxide into Abandoned Coal
Mines
Ohga, Kotaro1, Kiyoshi Higuchi2 , (1) Hokkaido University, Sapporo, Japan (2) Hokkaido University, Sapporo
Ishikari coal
field is the most gassy
coal
field in Japan. There is no operating
coal
mine in this
coal
field. But there are so many abandon
coal
mines in the
coal
field. From
these abandon
coal
mines, methane has emitted into the atmosphere. This is a significant
problem for global warming. Therefore, we have planed to use the methane emitted from the
abandon
coal
mines for small scale generator and inject the exhaust generated by the
engines for electric generation into the gob area of the abandon
coal
mines. Injected
carbon dioxide into the abandon
coal
mines is absorbed by
coal
remained in the gob area
and replaces methane absorbed by
coal
. In order to make it clear , displacement tests of
methane by carbon dioxide were carried out at the lower pressure( less than 2 atm.). In
this paper, the results of the tests and outline of this project are described.
AAPG Search and Discovery Article #90913©2000 AAPG International Conference and Exhibition, Bali, Indonesia