地质装备2025，Vol.26Issue(2)：29-32,39,5.
中祁连煤层气成藏特征研究—以木里煤田弧山矿区为例
Research on the characteristics of coalbed methane accumulation in the central Qilian mountains:a case study of the Hushan mining area in Muli coalfield
李吉庆 1晁海德 1蔡廷俊 1谢菁 1李青 1王琪玮1
作者信息
- 1. 青海省第四地质勘查院,西宁 810001||青海省页岩气资源重点实验室,西宁 810001
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摘要
Abstract
The Hushan mining area of Muli coalfield contains multiple sections of fully minable coal seams with a large thickness,which have the basic conditions for coalbed methane accumulation.In order to understand the reservoir formation characteristics of coalbed methane in the area,combined with geological surveys,drilling,sample analysis and gas testing,this study aims to investigate the coal seam occurrence characteristics,coalbed methane controlling factors and reservoir formation modes in this area.The results show that the coal seam occurrence characteristics and the roof rock sealing performance are good in the Hushan mining area,the reservoir burial depth is favorable,and the gas content can reach up to 8.16 m3/t,which indicates a certain prospect for coalbed methane resources;Due to the influence of synclines and faults developed on both wings,the gas content of the coal seam in the southern wing is significantly higher than that in the northern wing;The hydraulic sealing and sealing effects of groundwater are obvious,and the inclined axis of coalbed methane enrichment is the focus of next research.关键词
煤层气/木里组/弧山矿区/地下水/宽缓向斜富集Key words
coalbed methane/Muli formation/Hushan mining area/groundwater/wide and gentle syncline enrichment分类
天文与地球科学引用本文复制引用
李吉庆,晁海德,蔡廷俊,谢菁,李青,王琪玮..中祁连煤层气成藏特征研究—以木里煤田弧山矿区为例[J].地质装备,2025,26(2):29-32,39,5.
