煤田地质与勘探2016，Vol.44Issue(3)：40-45,6.DOI:10.3969/j.issn.1001-1986.2016.03.008
沁水盆地安泽区块3号煤层煤体结构及其控气作用
Coal structure and gas controlling effect of seam No.3 in Anze block of Qinshui basin
摘要
Abstract
Anze block of Qinshui basin has experienced several tectonic events since coal-forming period, resulting in the destruction of coal structure at different degrees, the exploitation of coal bed methane(CBM) in Anze block of Qin-Shui basin has been restricted by the undefined distribution of the coal structure. Based on the above-mentioned fact, coal-bed structure of 3# seam in single well is classified into three coal structure types, namelyⅠ,ⅡandⅢ, and the correlations among the spatial distributions, CBM content and burial depth of coal seams of different coal structures are ana-lyzed comparatively by using logging data in the area and putting forward the method to recognize coal structures by logging data. The results showed that the cataclastic-ranulitic structural coal are more universal than unde-formed coal and mylonitic structural coal in Anze block.In the south the cataclastic-granulitic structural coal is thick and in the north the mylonitic structural coal is thin. The CBM content increases significantly with the burial depth and is greatly influenced by the distribution of the coal structure at certain buried depth. The high content of CBM is present in the south because of a larger adsorptive capacity in the thick cataclastic-granulitic structural coal in this area.关键词
安泽区块/煤体结构/煤层含气量Key words
Anze block/coal structure/CBM content分类
天文与地球科学引用本文复制引用
熊波,张遂安,李晓友,赵洋,王玫珠,胡秋嘉,刘忠,曹海霄,祎王潇..沁水盆地安泽区块3号煤层煤体结构及其控气作用[J].煤田地质与勘探,2016,44(3):40-45,6.基金项目
国家科技重大专项项目(2011ZX05028，2016ZX05041)@@@@National Science and Technology Major Project(2011ZX05028，2016ZX05041) （2011ZX05028，2016ZX05041）
