黄陵矿区煤层底板异常涌出气体成因类型
发布时间：2018-09-01 08:57
【摘要】：黄陵矿区属于煤油气共生矿区,区内多个工作面发生底板气异常涌出。为探明底板异常涌出气体的成因类型,采集煤层底板气样44个、2号煤层气样12个,进行甲烷碳同位素(δ13C1)、乙烷碳同位素(δ13C2)及甲烷氢同位素(δ4CHD)等地球化学参数测试。测试分析结果表明,煤层底板异常涌出气不是来源于2号煤层,其甲烷碳同位素(δ13C1)测值为 52.20‰~ 42.80‰,乙烷碳同位素(δ13C2)值为 37.20‰~ 29.01‰,成因类型属油型气。通过对区域烃源岩分布及地层裂隙系统的分析,认为黄陵矿区底板异常涌出气可能来源于三叠系延长组烃源岩。
[Abstract]:Huangling mining area belongs to coal, oil and gas cogeneration area. In order to find out the genetic types of abnormal gas emission from the floor, 44 gas samples from the floor of coal seam and 12 samples from coalbed methane from No. 2 coal bed were measured for methane carbon isotopes (未 13C1), ethane carbon isotopes (未 13C2) and methane hydrogen isotopes (未 4CHD). The test results show that the abnormal gas emission from coal floor is not from No. 2 coal seam. The measured values of methane carbon isotope (未 13C1) and ethane carbon isotope (未 13C2) are 52.20 鈥，
本文编号：2216699
[Abstract]:Huangling mining area belongs to coal, oil and gas cogeneration area. In order to find out the genetic types of abnormal gas emission from the floor, 44 gas samples from the floor of coal seam and 12 samples from coalbed methane from No. 2 coal bed were measured for methane carbon isotopes (未 13C1), ethane carbon isotopes (未 13C2) and methane hydrogen isotopes (未 4CHD). The test results show that the abnormal gas emission from coal floor is not from No. 2 coal seam. The measured values of methane carbon isotope (未 13C1) and ethane carbon isotope (未 13C2) are 52.20 鈥，
本文编号：2216699
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