The Sedimentary Microfacies Distribution and Gas Distribution Law of Coal Seam under 203 Working Face in a Coal Mine in Ordos Basin, China

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Qu, Shaodong^1,2,3,4

Shaanxi Land Engineering Construction Group Co. Ltd., Xi'an

710075, China^1

Institute of Land Engineering and Technology, Shaanxi Land Engineering Construction Group Co. Ltd., Xi'an

710075, China^2

Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources, Xi'an

710075, China^3

Shaanxi Land Consolidation Engineering Technology Research Center, Xi'an

710075, China^4

关键词: Coal seams;    Gas distribution;    Lithologic traps;    Micro-facies;    Ordos basin , China;    Sand bars;    Sedimentary micro-facies;    Working face;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/2/022174/pdf
DOI  :  10.1088/1755-1315/170/2/022174

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Aiming at the abnormal emission of coal seam floor gas in 203 working face of a coal mine in Ordos basin, China, we implemented the core drilling. Observed the lithology and gas emission information of the target, and combined with the previous studies, we conclude that there are three kinds of sedimentary microfacies in this working face floor: distant bar, estuary sand bar and swamp microfacies. And the gas trap types belongs to the tectonic-lithologic trap.