气样组分分析表明，该区天然气属甲烷型生物成因气。
The sample analysis showed that the nature gas at this area belonged to methane biogenetic gas.
气样组分分析表明，该区天然气属甲烷型生物成因气。
淮南煤田煤层气属于热成因和次生生物成因气的混合气。
Coalbed gases in Huainan coal field is a gas mixture resulted from thermogenic methane and secondary biogenic gas.
次生生物成因气常与后来的煤层含水系统的细菌活动有关。
Secondary biogenic gas is usually associated with late stage groundwater system and bacteria activity.
浙江沿海平原浅层天然气主要赋存于第四纪全新世和晚更新世地层中。气样组分分析表明，该区天然气属甲烷型生物成因气。
The shallow gas in the coastal plain of Zhejiang Province mainly exists in the Holocene and Late Pleistocene of Quaternary, belonging to a methane type biogas according to its component analysis.
基于该气田天然气的组成和碳同位素特征认为，该气田的天然气也不可能是生物气与下部热成因天然气混合的产物。
Based on the characteristics of carbon isotope and components of gas in this field, it is believed that the gas is unlikely a mixture of biogas and the lower thermogenesis natural gas.
深源气是指来自地壳深部或上地幔的无机成因天然气或称非生物成因天然气，它具有明显的地质地球化学特征。
Deep source gas refers to inorganic genetic gas or abiogenic gas which comes from deep crust or upper mantle, and has apparent geology and geochemistry characteristics.
在此基础上，分析了热成因煤层气与次生生物成因煤层气的气源潜力，对研究区煤层气勘探有实际意义。
Based on this, the potential of thermogenic and secondary biogenic coalbed gases were analyzed and it is of practical significance for the coalbed gas exploration in the studied area.
碳酸盐主要为无机成因，少量与生物气有关，其含量受盐度的影响。
The carbonate cement, influenced by the salinity to some degree, is mainly inorganic with few relation to biogas.
无机成因天然气与生物成因天然气在地球化学特征上存在显著的差异，主要表现在化学成分和同位素组成特征。
There are some distinct geochemical differences between the organic and inorganic gases, mainly in chemical composition and the composition of isotopes.
分析了该天然气的成因，指出它主要是来自储层原油的菌解，另外还有侏罗系浅部煤系地层生物气的贡献。
The formation mechanism of gas is analyzed in the paper, the majority of gas derives reservoir oil degradation gas, the minority derives the biogenic methane in Jurassic coal stratum .
分析了该天然气的成因，指出它主要是来自储层原油的菌解，另外还有侏罗系浅部煤系地层生物气的贡献。
The formation mechanism of gas is analyzed in the paper, the majority of gas derives reservoir oil degradation gas, the minority derives the biogenic methane in Jurassic coal stratum .
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