摘要
煤层气资源与可采性评价是煤层气开发的基础。运用瓦斯地质理论,分析了井田地质构造、煤层埋藏深度、上覆基岩厚度、煤层厚度等地质因素与煤层含气量的关系。研究结果显示,演马庄井田煤层含气量分布呈西低东高、北低南高的趋势,并划分出4个煤层气开发有利块段及开发顺序。另外,从水文地质条件、顶底板岩性、构造煤发育规律及煤层渗透性等地质因素和重要可采性参数方面,评价了该井田煤层气的可采性,认为演马庄井田具有地面开采煤层气的潜力。
CBM resources and economic evaluation lay a foundation for CBM development. On the basis of gas geology theory, this article presents a quantitative and qualitative analysis of the relationships between coal-bed gas content and geological factors, including geological structure, buried depth, elevation of seam floor, thick- ness of upper bedrock, roof and floor lithologic characters, seam thickness, figuring out the distribution law of CBM--more in the east and south, less in the west and north. Accordingly four favorable tracts of CBM devel- opment and development order were divided. Meanwhile, the recoverability of CBM is evaluated in terms of geology and main minable parameters. And Yanmazhuang mine field was thought to have potential for surface development of CBM.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2009年第3期27-32,共6页
Coal Geology & Exploration
基金
国家自然科学基金项目(50534070
40772094)
国家高技术研究发展计划(863计划)项目(2007AA06Z221)
关键词
煤层含气量
分布规律
体积法
可采性
演马庄井田
coal-bed gas content
distribution law
volume method
recoverability
Yanmazhuang mine
