煤田地质与勘探2017，Vol.45Issue(5)：66-69,4.DOI:10.3969/j.issn.1001-1986.2017.05.012
黔西松河井田多层叠置独立含煤层气系统
Unattached multiple layer superimposed coalbed methane system in Songhe mine, west Guizhou
摘要
Abstract
From aspects of reservoir geology,sedimentary structure and hydrology,this paper has explored the vertical distribution of coalbed methane system of Longtan Formation in Songhe mine.The results show the regularity that ash and sulfur are high in the upper and the lower but low in the middle of the system.From the top to the bottom,the CBM content has the trend of rise-fall-rise.There are two sets of pressure systems in the correlation between the coal seam depth and the pressure coefficient.The three secondary sequences are highly consistent with the three lithologic sections which lay the physical property base of the systems.There is no hydraulic connection between the systems and the water abundance has the regularity of being weak-medium-weak which supply a hydrogeological base.The coal-bearing strata of Longtan Formation are an unattached multiple superimposed coalbed methane system which is jointly controlled by sedimentary,hydrogeological and structural conditions and can be divided into three unattached coalbed methane-bearing system.The research results provide geological basis for exploration development of the coalbed methane in Songhe mine.关键词
煤层气/含气系统/层序地层/水力封闭/松河井田Key words
CBM/CBM-bearing system/sequence stratigraphy/hydraulic sealing/Songhe mine分类
天文与地球科学引用本文复制引用
周培明,金军,罗开艳,高为,陈捷..黔西松河井田多层叠置独立含煤层气系统[J].煤田地质与勘探,2017,45(5):66-69,4.基金项目
国家科技重大专项任务(2016ZX05044-001-005) （2016ZX05044-001-005）
国家自然科学基金项目(41272145)National Science and Technology Major Project(2016ZX05044-001-005) （41272145）
National Natural Science Foundation of China(41272145) （41272145）
