煤田地质与勘探2017，Vol.45Issue(1)：67-70,4.DOI:10.3969/j.issn.1001-1986.2017.01.013
鸡西煤田梨树煤矿地面煤层气抽采潜力
CBM surface extraction potential in Lishu mine of Jixi coalfield
摘要
Abstract
Lishu mine is a high-gassy mine with large gas emission , thus the situation of gas control is increasingly severe. For evaluating CBM surface extration potential in Lishu mine, the paper uses numerical simulation software and carries out productivity prediction from 2 key evaluation parameters (gas content, permeability). The result shows that higher decreasing amplitude of gas content and higher gas saturation determine better desorption degree and development effect of the major mined seam. Taking well XX-01 as an example, the gas saturation is as high as 99%, the decreasing amplitude of gas content is as high as 10.8 m3/t. Coal structure (mainly native and cataclastic) determines better permeability of the major mined seam, reservoir is easy to transform and has better fracturing ef-fect, thus resulting in good production-enhancing effect. Productivity prediction shows that the cumulative produc-tion of vertical single CBM well is up to 4.22 million m3during 15 years, and safe and economic benefits are fea-sible. Therefore, Lishu mine has a good CBM surface extrction potential.关键词
抽采潜力/产能预测/含气量/渗透率Key words
extraction potential/productivity prediction/gas content/permeability分类
天文与地球科学引用本文复制引用
李林..鸡西煤田梨树煤矿地面煤层气抽采潜力[J].煤田地质与勘探,2017,45(1):67-70,4.基金项目
国家科技重大专项课题(2011ZX05040-003) National Science and Technology Major Project(2011ZX05040-003) （2011ZX05040-003）
