煤层甲烷碳同位素在煤层气勘探中的地质意义&mdash;&mdash;以沁水盆地为例

张建博; 陶明信

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煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例

张建博, 陶明信

文章导航 > 沉积学报 > 2000 > 18(4): 611-614

张建博, 陶明信. 煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例[J]. 沉积学报, 2000, 18(4): 611-614.

引用本文:

张建博, 陶明信. 煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例[J]. 沉积学报, 2000, 18(4): 611-614.

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration[J]. Acta Sedimentologica Sinica, 2000, 18(4): 611-614.

Citation:

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration[J]. Acta Sedimentologica Sinica, 2000, 18(4): 611-614.

张建博, 陶明信. 煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例[J]. 沉积学报, 2000, 18(4): 611-614.

引用本文:

张建博, 陶明信. 煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例[J]. 沉积学报, 2000, 18(4): 611-614.

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration[J]. Acta Sedimentologica Sinica, 2000, 18(4): 611-614.

Citation:

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration[J]. Acta Sedimentologica Sinica, 2000, 18(4): 611-614.

煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例

张建博¹,
陶明信²

1.
中国地质大学,北京 100083;
2.
中国科学院兰州地质研究所,兰州 730000

详细信息

作者简介:
张建博男 1964年出生高级工程师天然气地质勘探

中图分类号: P593;TEl32.2

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文章访问数: 504
HTML全文浏览量: 7
PDF下载量: 461
被引次数: 0

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration

摘要

摘要: 根据沁水煤层气甲烷碳同位素的组成与分布特征,从煤层甲烷碳同位素在煤层气解吸—扩散—运移中的分馏效应,结合水文地质条件和构造条件,讨论了煤层甲烷碳同位素在煤层气勘探中的地质意义,认为沁水煤层气δ¹³C₁值不仅总体上较高,而且随埋深增大而增高,说明沁水煤层气存在因煤层抬升而卸压所导致的煤层气解吸—扩散—运移效应,从而形成了该区甲烷碳同位素在平面上的分带现象。
- 煤层甲烷 /
- 碳同位素
Abstract: As an unconventional natural gas, the characteristics of carbon isotope in coal bed methane (CBM) is similar to conventional gas. This paper summarizes the character of China coal bed methane carbon isotope according to field desorption,thermo-modeling and carbon isotope testing. Taking Qinshui CBM field as a example, it points out the potential area and profitable target zone for CBM exploration and development from carbon isotope fractionation effect and desorption,diffusion and movement effect of CBM,combined with hydrology and structural condition. Geologic target area in China has complex tectonic and high maturation, lots of CBM was lost during evolution stage. The variation of carbon isotope value can directly reflect the CBM accumulation degree. Due to desorption, diffusion and movement effect of CBM, the thermo-modeling value of carbon isotope was much higher than carbon isotope value. Meanwhile,the carbon isotope,which also reflects the preservation condition of CBM trap, is important to evaluate the origin of CBM reservoir and exploration potential. Four different types are divided in terms of carbon isotope value distribution. According to this theory, Qinshui CBM basin in Jincheng area, Shanxi province was found. Rope coring technique was used and carbon isotope testing of field desorption gas was firstly conducted in Qinshui CBM basin. The desorption gas sample for carbon isotope analysis was collected at 4,24 and 96 hours by water displacement. Because of ¹²C having less electrical property than ¹³C, CBM molecule with ¹²C was prior to molecule with ¹³C in desorption procedure and lead to carbon isotope fractionation, the early adsorption gas had lighter carbon isotope than late adsorption gas. Qinshui CBM field is a large gas field and can be divided into 3 zones in terms of carbon isotope distribution feature. Carbon isotope in coal seam 15 is lighter than coal seam 3 because of being interfered by carbonate water. The best location lies in primary-secondary zone with carbon isotope at - 30‰～ - 40‰.
- coalbed methane /
- carbon isotope

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参考文献(4)

[1]	钱凯,赵庆波.煤层甲烷气勘探开发理论与实验测试技术[M].北京：石油工业出版社,1996
[2]	张建博,王红岩.沁水盆地煤层气有利区预测[M].江苏徐州：中国矿业大学出版社,1998
[3]	Stach E, Teichmuller M, Makowsky, et al. Stach' s Textbool of CoalPetrology [M]. 1975
[4]	徐永昌.天然气成因理论及应用[M].北京：科学出版社,1994

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[2]	陈剑舜, 张伟宏, 陈仕涛, 邵庆丰, 赵侃, 尹敬文, 朱丽东. 小冰期气候的湖北石笋碳同位素记录 . 沉积学报, 2020, 38(3): 497-504. doi: 10.14027/j.issn.1000-0550.2019.058
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[13]	王万春, 徐永昌, Manfred Schidlowski, Eckhard Faber, Wolfgang Stahl. 不同沉积环境及成熟度干酪根的碳氢同位素地球化学特征 . 沉积学报, 1997, 15(S1): 132-137.
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煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例

张建博¹,
陶明信²

1. 中国地质大学,北京 100083;

2. 中国科学院兰州地质研究所,兰州 730000

作者简介:
张建博男 1964年出生高级工程师天然气地质勘探

收稿日期: 2000-06-09
修回日期: 2000-10-15
刊出日期: 2000-08-10

中图分类号: P593;TEl32.2

关键词:

煤层甲烷 /

碳同位素

摘要: 根据沁水煤层气甲烷碳同位素的组成与分布特征,从煤层甲烷碳同位素在煤层气解吸—扩散—运移中的分馏效应,结合水文地质条件和构造条件,讨论了煤层甲烷碳同位素在煤层气勘探中的地质意义,认为沁水煤层气δ¹³C₁值不仅总体上较高,而且随埋深增大而增高,说明沁水煤层气存在因煤层抬升而卸压所导致的煤层气解吸—扩散—运移效应,从而形成了该区甲烷碳同位素在平面上的分带现象。

English Abstract

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration

Received Date: 2000-06-09
Rev Recd Date: 2000-10-15
Publish Date: 2000-08-10

Keywords:

coalbed methane /
carbon isotope

Abstract: As an unconventional natural gas, the characteristics of carbon isotope in coal bed methane (CBM) is similar to conventional gas. This paper summarizes the character of China coal bed methane carbon isotope according to field desorption,thermo-modeling and carbon isotope testing. Taking Qinshui CBM field as a example, it points out the potential area and profitable target zone for CBM exploration and development from carbon isotope fractionation effect and desorption,diffusion and movement effect of CBM,combined with hydrology and structural condition. Geologic target area in China has complex tectonic and high maturation, lots of CBM was lost during evolution stage. The variation of carbon isotope value can directly reflect the CBM accumulation degree. Due to desorption, diffusion and movement effect of CBM, the thermo-modeling value of carbon isotope was much higher than carbon isotope value. Meanwhile,the carbon isotope,which also reflects the preservation condition of CBM trap, is important to evaluate the origin of CBM reservoir and exploration potential. Four different types are divided in terms of carbon isotope value distribution. According to this theory, Qinshui CBM basin in Jincheng area, Shanxi province was found. Rope coring technique was used and carbon isotope testing of field desorption gas was firstly conducted in Qinshui CBM basin. The desorption gas sample for carbon isotope analysis was collected at 4,24 and 96 hours by water displacement. Because of ¹²C having less electrical property than ¹³C, CBM molecule with ¹²C was prior to molecule with ¹³C in desorption procedure and lead to carbon isotope fractionation, the early adsorption gas had lighter carbon isotope than late adsorption gas. Qinshui CBM field is a large gas field and can be divided into 3 zones in terms of carbon isotope distribution feature. Carbon isotope in coal seam 15 is lighter than coal seam 3 because of being interfered by carbonate water. The best location lies in primary-secondary zone with carbon isotope at - 30‰～ - 40‰.

张建博, 陶明信. 煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例[J]. 沉积学报, 2000, 18(4): 611-614.

引用本文:

张建博, 陶明信. 煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例[J]. 沉积学报, 2000, 18(4): 611-614.

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration[J]. Acta Sedimentologica Sinica, 2000, 18(4): 611-614.

Citation:

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration[J]. Acta Sedimentologica Sinica, 2000, 18(4): 611-614.

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煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例

作者简介:
张建博男 1964年出生高级工程师天然气地质勘探

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Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration

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目录

煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例

1. 中国地质大学,北京 100083;

2. 中国科学院兰州地质研究所,兰州 730000

作者简介:
张建博男 1964年出生高级工程师天然气地质勘探

English Abstract

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration

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煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例

作者简介: 张建博 男 1964年出生高级工程师天然气地质勘探

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出版历程

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration

计量

出版历程

目录

煤层甲烷碳同位素在煤层气勘探中的地质意义——以沁水盆地为例

1. 中国地质大学,北京 100083; 2. 中国科学院兰州地质研究所,兰州 730000

作者简介: 张建博 男 1964年出生高级工程师天然气地质勘探

English Abstract

Geological Significances of CoalBed Methane Carbon Isotope in Coal Bed Methane Exploration

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
张建博男 1964年出生高级工程师天然气地质勘探

1. 中国地质大学,北京 100083;

2. 中国科学院兰州地质研究所,兰州 730000

作者简介:
张建博男 1964年出生高级工程师天然气地质勘探