南方复杂地区页岩气差异富集机理及其关键技术

解习农; 郝芳; 陆永潮; 何生; 石万忠; 姜振学; 熊永强; 张金川

doi:10.3799/dqkx.2017.084

Volume 42 Issue 7

Jul. 2017

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Article Navigation > Earth Science > 2017 > 42(7): 1045-1056

Xie Xinong, Hao Fang, Lu Yongchao, He Sheng, Shi Wanzhong, Jiang Zhenxue, Xiong Yongqiang, Zhang Jinchuan, 2017. Differential Enrichment Mechanism and Key Technology of Shale Gas in Complex Areas of South China. Earth Science, 42(7): 1045-1056. doi: 10.3799/dqkx.2017.084

Citation:

Xie Xinong, Hao Fang, Lu Yongchao, He Sheng, Shi Wanzhong, Jiang Zhenxue, Xiong Yongqiang, Zhang Jinchuan, 2017. Differential Enrichment Mechanism and Key Technology of Shale Gas in Complex Areas of South China. Earth Science, 42(7): 1045-1056. doi: 10.3799/dqkx.2017.084

Citation:

Xie Xinong, Hao Fang, Lu Yongchao, He Sheng, Shi Wanzhong, Jiang Zhenxue, Xiong Yongqiang, Zhang Jinchuan, 2017. Differential Enrichment Mechanism and Key Technology of Shale Gas in Complex Areas of South China. Earth Science, 42(7): 1045-1056. doi: 10.3799/dqkx.2017.084

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Differential Enrichment Mechanism and Key Technology of Shale Gas in Complex Areas of South China

doi: 10.3799/dqkx.2017.084

1.
Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan 430074, China
2.
China University of Petroleum, Qingdao 266580, China
3.
Unconventional Natural Gas Research Institute, China University of Petroleum, Beijing 102249, China
4.
State Key Laboratory of Organic Geochemistry of Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
5.
School of Energy Resources, China University of Geosciences, Beijing 100083, China

Received Date: 2017-05-23
Publish Date: 2017-07-15

Abstract

Abstract

In view of the characteristics of strong temporal and spatial heterogeneity, high thermal maturity, complex tectonic evolution, differential enrichment and various preservation conditions of shale gas in southern China, multidisciplinary methods are applied to further study the Wufeng-Longmaxi marine shale gas, and a number of key technologies are developed to characterize the evaluation parameters of marine shale gas with over-high maturity in the complex geologic areas of southern China. The results show that argillaceous siliceous shales and argillaceous/siliceous mixed shales are the advantageous lithofacies in the Wufeng Formation-Longmaxi Formation. The meso-pore and macro-pore make a great contribution to the pore volume, and the micro-nano pore structure is controlled by mineral composition and porosity development. The enrichment and evolution of shale gas are characterized by high paleotemperature, high thermal evolution, complex evolution of temperature and pressure, complicated conditions for shale gas occurrence and preservation. The Wufeng-Longmaxi marine shale gas could be effectively evaluated in terms of technologies of lithofacies optimization, the characterization of pore space from macroscopic and microscopic perspectives, the complex evolution process of marine shale, and the evaluation parameters for sweet spots of shale gas. The research results can provide technical support for the basic geological survey of shale gas in southern China.
- shale gas,
- Wufeng Formation,
- Longmaxi Formation,
- enrichment mechanism,
- key technology,
- Yangtze area,
- petroleum geology

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References(45)

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Differential Enrichment Mechanism and Key Technology of Shale Gas in Complex Areas of South China

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