摘要
本文运用了两种采样方法和三种气样,100多个样品,分析研究了煤成气组分和甲烷碳同位素。研究结果,提出了多数矿区的煤层甲烷的δ^(13)c_1都比煤层气气藏内的δ^(13)c_1低得多,在论述了我国煤层气甲烷δ^(13)c_1的一些特征和它们的一些变化情况后,得出了解吸气中重烃浓度、δ^(13)c_1与煤变质程度的关系。
This paper applied two methods of sampling to gather three kinds of gas sample and used analytic data of more than 100 samples, which are mainly picked from Kailuan, Huainan and Changkuang coalfields, to study the component of coal - genetic gas and the carbon isotope of methane. The result of investigation suggests that most of the mining areas its content of methane δ13C1 in coal seam is much fewer than that in reservoir of coalbed gas. After having been discussed on characteristics and variations in methane δ13C1 of coalbed gas of our country we obtained knowledge on the relationship between concentration of heavy hydrocarbon, δ13C1 and metamorphic grade in release of absorbed gas.
出处
《贵州地质》
1992年第1期99-108,共10页
Guizhou Geology
