煤层气碳同位素阶段演化的模拟实验研究及其应用

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煤层气碳同位素阶段演化的模拟实验研究及其应用

段毅

文章导航 > 沉积学报 > 2010 > 28(2): 401-404

段毅. 煤层气碳同位素阶段演化的模拟实验研究及其应用[J]. 沉积学报, 2010, 28(2): 401-404.

引用本文:

段毅. 煤层气碳同位素阶段演化的模拟实验研究及其应用[J]. 沉积学报, 2010, 28(2): 401-404.

DUAN Yi. Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope[J]. Acta Sedimentologica Sinica, 2010, 28(2): 401-404.

Citation:

DUAN Yi. Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope[J]. Acta Sedimentologica Sinica, 2010, 28(2): 401-404.

段毅. 煤层气碳同位素阶段演化的模拟实验研究及其应用[J]. 沉积学报, 2010, 28(2): 401-404.

引用本文:

段毅. 煤层气碳同位素阶段演化的模拟实验研究及其应用[J]. 沉积学报, 2010, 28(2): 401-404.

DUAN Yi. Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope[J]. Acta Sedimentologica Sinica, 2010, 28(2): 401-404.

Citation:

DUAN Yi. Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope[J]. Acta Sedimentologica Sinica, 2010, 28(2): 401-404.

煤层气碳同位素阶段演化的模拟实验研究及其应用

段毅

中国科学院油气资源研究重点实验室兰州730000

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段毅

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Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope

DUAN Yi

Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou730000

More Information

Corresponding author: DUAN Yi

摘要

摘要: 煤层气聚集存在着“累积聚气”和“阶段聚气”两种形式。通过热模拟实验，研究了“阶段聚气”的煤层气甲烷碳同位素的的影响因素和不同成熟度区间煤层气甲烷碳同位素组成特征。结果表明，“阶段聚气”的煤层气碳同位素组成与该演化阶段的起始Ro值和末尾Ro值密切相关，起始和末尾Ro值越高，煤层气碳同位素组成越重；相同成熟度区间，高升温速率下形成的煤层气碳同位素组成比较轻；煤岩母质性质影响煤层气碳同位素组成；在相同成熟度区间，泥炭形成的甲烷碳同位素组成最轻。确定了成煤有机质从Ro为1.2％、1.6％、2.0％、2.4％、2.8％分别演化至Ro为3.0％和4.0％(3.7％)之间生成的煤层气甲烷碳同位素组成，这为研究不同成熟度区间生成的煤层气成因提供了科学数据。并且，将这些研究结果应用到沁水盆地南部煤层气研究，认为该地区煤层气是在中侏罗世末以后（Ro＞1.6％）聚集而成，具有“阶段聚气”的特征。
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Abstract: Coal bed methane (CBM) accumulation models include continuous gas accumulation and staged gas accumulation. In this paper, the influence factors of carbon isotope of CBM formed by staged gas accumulation and carbon isotopic composition of CBM formed in different maturity intervals were researched by thermal simulation experiment. The results showed that the carbon isotopic composition of CBM formed by staged gas accumulation is related to initial Ro and final Ro values in the evolutionary stage. With the increase of initial Ro and final Ro values, carbon isotope of CBM became heavier. In some maturity intervals, the carbon isotopic composition of CBM formed at higher heating rate was lighter than that at lower heating rate. At the same time, nature of coal also affects carbon isotope of CBM. The carbon isotope of methane generated by peat was the lightest of all three samples. The carbon isotopic composition of CBM formed by coal parent material with Ro  values of 1.2%, 1.6%, 2.0%, 2.4% and 2.8% rising to 3.0 and 4.0%, respectively, was determinated. This provides scientific evidence for studying the genesis of CBM generated in different maturity intervals. These results were used to study CBM from the southern Qinshui basin, and it is found that CBM from the southern Qinshui basin was accumulated after terminal Middle Jurassic (Ro >1.6%) and characterized by the staged gas accumulation.

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[1]	单祥, 郭华军, 陈希光, 郭旭光, 佘敏, 李亚哲. 准噶尔盆地玛西斜坡区百口泉组砂砾岩埋藏溶蚀作用实验模拟研究 . 沉积学报, 2022, 40(5): 1406-1418. doi: 10.14027/j.issn.1000-0550.2021.050
[2]	谭飞, 张云峰, 王振宇, 董兆雄, 黄正良, 王前平, 高君微. 鄂尔多斯盆地奥陶系不同组构碳酸盐岩埋藏溶蚀实验 . 沉积学报, 2017, 35(2): 413-424. doi: 10.14027/j.cnki.cjxb.2017.02.018
[3]	董春梅, 马存飞, 栾国强, 林承焰, 张宪国, 任丽华. 泥页岩热模拟实验及成岩演化模式 . 沉积学报, 2015, 33(5): 1053-1061. doi: 10.14027/j.cnki.cjxb.2015.05.021
[4]	. 海相烃源岩二次生烃潜力定量评价新方法 . 沉积学报, 2012, 30(3): 594-602.
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煤层气碳同位素阶段演化的模拟实验研究及其应用

段毅

中国科学院油气资源研究重点实验室兰州730000

通讯作者: 段毅

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2010-04-10

关键词:

simulation experiment /

coal bed methane /

carbon isotope /

staged gas accumulation /

Qinshui basin

摘要: 煤层气聚集存在着“累积聚气”和“阶段聚气”两种形式。通过热模拟实验，研究了“阶段聚气”的煤层气甲烷碳同位素的的影响因素和不同成熟度区间煤层气甲烷碳同位素组成特征。结果表明，“阶段聚气”的煤层气碳同位素组成与该演化阶段的起始Ro值和末尾Ro值密切相关，起始和末尾Ro值越高，煤层气碳同位素组成越重；相同成熟度区间，高升温速率下形成的煤层气碳同位素组成比较轻；煤岩母质性质影响煤层气碳同位素组成；在相同成熟度区间，泥炭形成的甲烷碳同位素组成最轻。确定了成煤有机质从Ro为1.2％、1.6％、2.0％、2.4％、2.8％分别演化至Ro为3.0％和4.0％(3.7％)之间生成的煤层气甲烷碳同位素组成，这为研究不同成熟度区间生成的煤层气成因提供了科学数据。并且，将这些研究结果应用到沁水盆地南部煤层气研究，认为该地区煤层气是在中侏罗世末以后（Ro＞1.6％）聚集而成，具有“阶段聚气”的特征。

English Abstract

Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope

DUAN Yi

Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou730000

Corresponding author: DUAN Yi

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2010-04-10

Abstract: Coal bed methane (CBM) accumulation models include continuous gas accumulation and staged gas accumulation. In this paper, the influence factors of carbon isotope of CBM formed by staged gas accumulation and carbon isotopic composition of CBM formed in different maturity intervals were researched by thermal simulation experiment. The results showed that the carbon isotopic composition of CBM formed by staged gas accumulation is related to initial Ro and final Ro values in the evolutionary stage. With the increase of initial Ro and final Ro values, carbon isotope of CBM became heavier. In some maturity intervals, the carbon isotopic composition of CBM formed at higher heating rate was lighter than that at lower heating rate. At the same time, nature of coal also affects carbon isotope of CBM. The carbon isotope of methane generated by peat was the lightest of all three samples. The carbon isotopic composition of CBM formed by coal parent material with Ro  values of 1.2%, 1.6%, 2.0%, 2.4% and 2.8% rising to 3.0 and 4.0%, respectively, was determinated. This provides scientific evidence for studying the genesis of CBM generated in different maturity intervals. These results were used to study CBM from the southern Qinshui basin, and it is found that CBM from the southern Qinshui basin was accumulated after terminal Middle Jurassic (Ro >1.6%) and characterized by the staged gas accumulation.

段毅. 煤层气碳同位素阶段演化的模拟实验研究及其应用[J]. 沉积学报, 2010, 28(2): 401-404.

引用本文:

段毅. 煤层气碳同位素阶段演化的模拟实验研究及其应用[J]. 沉积学报, 2010, 28(2): 401-404.

DUAN Yi. Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope[J]. Acta Sedimentologica Sinica, 2010, 28(2): 401-404.

Citation:

DUAN Yi. Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope[J]. Acta Sedimentologica Sinica, 2010, 28(2): 401-404.

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煤层气碳同位素阶段演化的模拟实验研究及其应用

通讯作者:
段毅

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Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope

Corresponding author: DUAN Yi

计量

目录

煤层气碳同位素阶段演化的模拟实验研究及其应用

中国科学院油气资源研究重点实验室兰州730000

通讯作者: 段毅

English Abstract

Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope

Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou730000

Corresponding author: DUAN Yi

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煤层气碳同位素阶段演化的模拟实验研究及其应用

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Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope

Corresponding author: DUAN Yi

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出版历程

目录

煤层气碳同位素阶段演化的模拟实验研究及其应用

中国科学院油气资源研究重点实验室兰州730000

通讯作者: 段毅

English Abstract

Thermal Simulation Experiment and Application of Staged Evolution of Coalbed Methane Carbon Isotope

Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou730000

Corresponding author: DUAN Yi

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