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Distribution and gas-bearing properties of Permian igneous rocks in Sichuan Basin, SW China
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MA Xinhua,LI Guohui,YING Danlin,ZHAGN Benjian,LI Ya,DAI Xin,FAN Yi,ZENG Yunxian
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Table 3 Composition of natural gas from Upper Permian igneous rocks in Sichuan Basin.
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| Area | Well No. | Well depth/m | Rock type | Content of natural gas components/% | | CH4 | C2H6 | C3H8 | CO2 | H2S | H2 | N2 | | Southwest Sichuan | ZG1 | 2 870.0-2 883.0 | Basalt | 96.59 | 0.222 | 0.008 | 0.042 | 0 | 0 | 3.101 | | ZG2 | 3 475.0-3 104.8 | Basalt | 91.20 | 0.160 | Trace | 0 | 0 | 0.076 | 8.400 | | Jianyang | YT1 | 5 628.0-5 644.0
5 646.0-5 675.0 | Pyroclastic rock | 98.94 | 0.340 | 0.030 | 0.230 | 0 | 0 | 0.440 |
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