煤岩及其主显微组份热解气碳同位素组成的演化

刘文汇; 宋岩; 刘全有; 秦胜飞; 王晓锋

煤岩及其主显微组份热解气碳同位素组成的演化

1.
中科院兰州地质所气体地球化学国家重点实验室兰州 730000;
2.
石油天然气集团公司石油勘探开发科学研究院北京 100083

基金项目: 国家自然科学基金 (批准号 :499730 10 );中国科学院重点方向 ( KZCX2 -111)联合资助

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中图分类号: P593

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Evolution of Carbon Isotopic Composition in Pyrolytic Gases Generated from Coal and Its Main Macerals

1.
State Key Laboratory of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000;
2.
Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083

摘要

摘要: 模拟实验是有机地球化学研究的重要组成部分 ,也是油气地球化学研究的重要手段。本文通过煤岩及其主要显微组分的热解成气模拟实验产物的组分和同位素组成分析 ,补充和完善了前人对煤岩热解气同位素组成分布的一些认识。同时 ,对比研究了煤型气与煤岩热解气的碳同位素分馏特征 ,结果表明两者具有良好的一致性 ,认为可以通过精细的热解模拟来提供不同含煤沉积盆地煤型气的判识指标 ,而模拟气与天然气碳同位素组成的对比 ,关键是对同位素分析资料的处理。在模拟系列产物碳同位素分析基础上 ,获得了单一成因来源天然气甲烷、乙烷碳同位素组成与演化程度之间的关系式以及演化过程中甲烷碳同位素之间的关系式 ,这些结果会对混源气的判识有重要意义。
- 成烃模拟 /
- 碳同位素 /
- 显微组分 /
- 气源对比 /
- 煤岩演化
Abstract: Simulation experiment is an important part in the study on organic geochemistry. It is also an important means for the research of oil and gas geochemistry. According to the analysis of component and isotope composition of pyrolytic gases generated from simulation of coal and its main macerals, we replenish and perfect the predecessor's cognition of isotopic composition in pyrolytic gases generated from simulation in this paper. Moreover, we contrastively study the fractional characteristics of carbon isotope in coal-type gases and pyrolytic gases, and the result shows that they have favourable consistency. Basing on careful simulation, we can gain the decisive index of coal-type gases generated from different coal-bearing sedimentary basin. To the contrast of carbon isotopic composition between natural gases and simulation gases, what the most important is how to deal with the isotopic analysis data. According to the carbon isotope analysis of the simulation series products, we obtain the relationship between methane, ethane carbon isotopic composition and evolution stage in natural gas with single source, and the relationship between methane carbon isotope and ethane carbon isotope in evolution process. All of these results have an important significance to judgie gases of mixed sources.
- simulation of genetic hydrocarbon /
- carbon isotope /
- macerals /
- gas-resource correlation /
- coal evolution

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参考文献(1)

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煤岩及其主显微组份热解气碳同位素组成的演化

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Evolution of Carbon Isotopic Composition in Pyrolytic Gases Generated from Coal and Its Main Macerals

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煤岩及其主显微组份热解气碳同位素组成的演化

1. 中科院兰州地质所气体地球化学国家重点实验室兰州 730000;

2. 石油天然气集团公司石油勘探开发科学研究院北京 100083

English Abstract

Evolution of Carbon Isotopic Composition in Pyrolytic Gases Generated from Coal and Its Main Macerals

1. State Key Laboratory of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000;

2. Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083

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煤岩及其主显微组份热解气碳同位素组成的演化

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Evolution of Carbon Isotopic Composition in Pyrolytic Gases Generated from Coal and Its Main Macerals

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出版历程

目录

煤岩及其主显微组份热解气碳同位素组成的演化

1. 中科院兰州地质所气体地球化学国家重点实验室 兰州 730000; 2. 石油天然气集团公司石油勘探开发科学研究院 北京 100083

English Abstract

Evolution of Carbon Isotopic Composition in Pyrolytic Gases Generated from Coal and Its Main Macerals

1. State Key Laboratory of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000; 2. Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083

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联系我们

1. 中科院兰州地质所气体地球化学国家重点实验室兰州 730000;

2. 石油天然气集团公司石油勘探开发科学研究院北京 100083

1. State Key Laboratory of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000;

2. Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083