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Figure 1. Index map of Akabira<br />
Coal Mine<br />
Figure 2. Geological map around Akabira<br />
Mine and sampling localities<br />
Sample No. No. in Map Locality Name<br />
Akabira 2003<br />
A-02 1 No.1 inclined Shaft<br />
A-04 2 No.2 inclined Shaft<br />
A-03 3 No.3 inclined Shaft<br />
A-01 4 Kita Vertical Shaft<br />
A-05 5 Kamiuta Vertical Shaft<br />
Akabira2004<br />
AK-2 1 No.1 inclined Shaft<br />
AK-3 3 No.3 inclined Shaft<br />
AK-1 4 Kita Vertical Shaft<br />
Table 1. Sample numbers and localities<br />
RESULTS<br />
Gas Composition<br />
Figure 3, in which O 2 , Ar, CO 2 are plotted against N 2 , shows the major components of CBM<br />
with the exception hydrocarbons. The very few compositions in O 2 suggests that almost all<br />
samples had no air mixing, but it is inferred by the good correlation between Ar and N 2 , that<br />
Ar and N 2 are adsorbed at Akabira Coal Mine.<br />
160 New Energy Resources in the <strong>CCOP</strong> Region - Gas Hydrates and Coalbed Methane
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