摘要
根据淮南煤田二叠系山西组的泥岩沉积分布特征,结合钻孔资料以及实验数据,总结了山西组页岩气富集的条件。运用GIS手段和多层次模糊综合评判的方法,对山西组页岩气有利勘探区进行分析。研究结果表明:山西组泥岩较厚,有机质丰度较高,有机质类型以Ⅱ2型为主,孔隙较为发育;与一般的海相以石英为主的泥岩相比,山西组石英含量较少,长石类矿物含量较少,对于页岩气开采压裂较为不利;页岩气有利勘探区可以分为四个类型,其中在东南区域、古店乡–顾桥镇–桂集镇–岳张集镇一带及杨楼乡一带综合评价值较高,均在0.56以上,为优等开发有利区。
According to the mudstone distribution of Shanxi Formation in Huainan coalfield, combined with boreholedata and experimental data, the paper summarizes shale gas enrichment conditions of Shanxi Formation, usesGIS and multi-level fuzzy comprehensive evaluation method to analyze the advantageous areas of Shanxi Formation.The results show that the mudstone of Shanxi Formation is ticker, high abundance of organic matter, the organicmatter type is mainly of Ⅱ2, and pores in the mudstone are developed; comparing with the general marinemudstone dominated by quartz, which is less in Shanxi Formation, the content of feldspar minerals is lower, whichis unfavorable for the exploitation of shale gas; Favorable exploration areas of shale gas can be divided into fourtypes, the southeast region, Gudianxiang–Guqiaozhen–Guijizhen–Yuezhangjizhen area and Yanglouxiang area havehigher comprehensive evaluation value, above 0.56, are excellent advantageous development areas.
作者
魏强
胡宝林
刘会虎
平文文
高德燚
WEI Qiang HU Baolin LIU Huihu PING Wenwen GAO Deyi(Institute of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China)
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2016年第5期71-75,共5页
Coal Geology & Exploration
基金
国家自然科学基金项目(41402140
41302129)
安徽省页岩气资源调查评价项目(2012-g-17)~~
关键词
山西组
泥岩
页岩气
GIS
富集
Shanxi Formation
mudstone
shale gas
GIS
enrichment
