METHOD FOR RECOVERING COAL SEAM BY NON-COMBUSTION GASIFICATION AT ORIGINAL LOCATION AND METHOD FOR RECOVERING ORGANIC SUBSTANCE OR FOSSIL ORGANIC SUBSTANCE UNDER GROUND BY NON-COMBUSTION GASIFICATION AT ORIGINAL LOCATION

WIPO Patent Application WO/2003/091534

A1

A method for recovering a coal seam, or an organic substance or fossil organic substance under the ground by a process of non-combustion gasification at the original location thereof, which comprises pressing supercritical carbon dioxide from the face of the ground into the coal seam or a rock zone (1) containing the organic substance or fossil organic substance under the ground, to thereby extract volatile components from the coal seam or rock zone (1), and recovering the volatile components to the face of the ground. The method allows the effective use of a coal seam or a rock zone containing an organic substance or fossil organic substance under the ground, without mining and by a non-combustion process, and further with a reduced cost and safety.

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KOIDE HITOSHI (JP)
TAWARADA KEI (JP)
SATSUMI SICHIRO (JP)
NAKO MASAO (JP)
KOMAKI HIRONOBU (JP)

PCT/JP2003/005474

November 06, 2003

April 28, 2003

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KOIDE HITOSHI (JP)
KANSAI ENVIRONMENTAL ENGINEERI (JP)
TAWARADA KEI (JP)
SATSUMI SICHIRO (JP)
NAKO MASAO (JP)
KOMAKI HIRONOBU (JP)

E21B43/16; E21B43/24; E21B43/25; (IPC1-7): E21B43/00

WO1989010463A1

1989-11-02

JPH0525986A	1993-02-02
JP2002114986A	2002-04-16
JP2001164270A	2001-06-19
JP2000061293A	2000-02-29
JPH11192416A	1999-07-21

Kurihara, Hiroyuki (Iwasaki Bldg. 7F 3-15, Hiroo 1-chome,, Shibuya-k, Tokyo ., JP)

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