辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(10)：1036-1040,5.DOI:10.11956/j.issn.1008-0562.2017.10.006
深部煤层气储层微观结构及储渗机理
Microstructure and reserve-seepage mechanism of deep coalbed methane reservoir
摘要
Abstract
Based on observation results of microstructure of the Beijing Da Anshan Coal Mine and Fuxin Wu long Coal Mine CBM Reservoir samples with SEM method,the characteristics of coal seam such as pores and cracks type,size,connectivity and relation between CBM Reserve-seepage and microstructure of coal seam were analyzed.Coal seam porosity based on the scanned images by Image Processing Method were extracted and analyzed.The results shows that the methane reservoir samples of Beijing Da Anshan coal mine are typical low porosity and low permeability reservoir mainly with micro-pores,minimal-pores,micro-cracks,and minimal-cracks.In contract with this,the methane reservoir samples of Fuxin Wulong mine are typical of high porosity and high permeability reservoirs.And they have diverse type pores,large pores and cracks and good connectivity presence.All of these are very conducive to seepage and output of CBM.This paper assumes that more types and moderate size pores structure of the CBM reservoir are in favor of coalbed methane adsorption reservoir,and large pores and cracks are in favor of free coalbed methane reservoir.In addition,extended long and wide cracks and good connectivity between pores or between pores and cracks are in favor of CBM seepage and migration.关键词
煤层气储层/微观结构/煤层气储集/渗流/电镜Key words
methane reservoir/microstructure/reserve a of CBM/seepage/SEM分类
矿业与冶金引用本文复制引用
刘杰,张永利,杨新乐..深部煤层气储层微观结构及储渗机理[J].辽宁工程技术大学学报（自然科学版）,2017,36(10):1036-1040,5.基金项目
国家自然科学基金(51574138,51574136,51304103) （51574138,51574136,51304103）
