沁南地区型煤覆压孔渗试验研究-中国科技论文在线.PDFVIP

中国科技论文在线 沁南地区型煤覆压孔渗实验研究# 唐淑玲，汤达祯，耿昀光，刘文卿，李冰洋，王静** （中国地质大学(北京)能源学院，北京 100083） 5 摘要：为了探讨沁南地区煤储层物性的主控因素，通过将原煤样品压制成型煤样品，并进行 覆压孔渗实验，得出不同类型型煤样品的孔渗值，进行对比分析后探讨出不同煤岩成分对煤 储层孔渗、渗流模式的影响。通过对实验数据的分析可知气体通过煤岩时，会优先选择优势 渗流通道，且在不同类型的型煤中，优势渗流通道会发生变化。在控制型煤渗透率的多种因 10 素中，煤岩组分为主控因素且为根本因素，其次为煤岩非均质性。 关键词：煤储层物性，型煤，覆压孔渗，煤岩组分，主控因素 中图分类号：TE19 Permeability of Overburden Pressure Experiment of 15 Briquette Coal in Qinnan Region TANG Shuling, TANG Dazhen, GENG Yunguang, LIU Wenqing, LI Bingyang, WANG Jing (China University of Geosciences(Beijing),College of energy resources,Beijing 100083) Abstract : In order to explore the main controlling factors of coal reservoir physical properties in 20 Qinnan region, the original coal samples was manufactured into briquette coal. Through the permeability overburden pressure experiment, the poroperm values of different kinds of briquette coal samples were obtained and analyzed, then the influence of coal and rock composition in coal reservoir permeability and the seepage model was explored. The analysis of the experimental data shows: it will give preference to advantage seepage channel when the gas pass the coal , and the 25 dominant channel will change among different briquette coal samples; in many controlling factors of coal permeability, coal and rock composition is the main controlling factor ,even as the fundamental factor, followed by coal and rock heterogeneity. Key words: coal reservoir physical properties; briquette coal; permeability overburden pressure experiment; coal and rock compositio; main controlling factors 30 0 引言 型煤是指以适当的工艺和设备