Reservoir-forming conditions of shale gas in Badaowan Formation in Fukang area, Xinjiang

Authors

ZHANG Min, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
LI Xianqing, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, ChinaFollow
ZHANG Jizhen, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
SUN Jie, Geological Exploration and Research Institute, CNAGG, Beijing 100038, China
LIANG Wanle, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
DUAN Zhiyou, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
LI Hanqing, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China

Abstract

In order to evaluate the potential of shale gas of coal measures in Fukang area, Xinjiang, taking the shale of Jurassic coal measures in Badaowan Formation as an example, the study was carried out and the favorable accumulation area for shale gas was preliminarily put forward according to the drilling, core data and sample analysis results in this paper. The result shows that the accumulative thickness of Jurassic Badaowan Formation shale is big(200-400 m), the buried depth is shallow(<1 500 m), the organic carbon content is high(average TOC>2.0%), mainly of type Ⅲ and Ⅱ2, thermal evolution level is moderate(R_ran is 0.8%-1.1%, mature), physical property of reservoir are relatively good, micro-nanoscale pores are relatively developed, clay mineral content is high, brittleness index is low and the gas content is low(average 1.4 m³/t). After comprehensive analysis, it is concluded that Badaowan Formation in Fukang area has good reservoir-forming conditions for shale gas. On the basis of above studies, it is proposed that Fukang-Mu 7 well-Miquan-Changji area is a favorable accumulation area for shale gas in coal measures in this area.

Keywords

shale gas in coal measures, reservoir-forming condition, Jurassic Badaowan Formation, favorable res-ervoir-forming area, Fukang area, Xinjiang

DOI

10.3969/j.issn.1001-1986.2019.02.017

Recommended Citation

ZHANG Min, LI Xianqing, ZHANG Jizhen, et al. (2019) "Reservoir-forming conditions of shale gas in Badaowan Formation in Fukang area, Xinjiang," Coal Geology & Exploration: Vol. 47: Iss. 2, Article 18.
DOI: 10.3969/j.issn.1001-1986.2019.02.017
Available at: https://cge.researchcommons.org/journal/vol47/iss2/18

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