西山煤田古交矿区煤层气储层评价

【作者】 边结晶； 晋艺； 冯绍盛； 王晋； 夏鹏； 曾凡桂；

【机构】 太原理工大学； 煤与煤系地质勘查山西省重点实验室；

【摘要】 西山煤田古交矿区具有丰富的煤层气资源,据估计煤层气储量为8.2x10¹⁰m³。本文根据西山煤田古交矿区的实际情况,基于模糊数学理论,即灰色关联分析法,对古交矿区的目标储层进行分类评价。本文优选煤层含气量,最大埋深,煤厚,组分分析以及工业分析为储层优选的主要因素,并确立了各因素在该区资源评价中的权重系数,最终以区内综合权衡分数值的大小为依据,建立该区资源评价的分类标准:评判值>1.5的为Ⅰ类储层,1.5-0.6的为Ⅱ类储层,<0.6的为Ⅲ类储层。由此可以得出:2^#和8^#储层是古交矿区煤层气勘探开发的最优储层;6^#和9^#号次之,同样适合煤层气开发;02^#,03^#,3^#,4^#,10^#,11^#目前不适宜煤层气的勘探开发。更多还原

【Abstract】 The Gujiao blocks is rich in coalbed methane（CBM） resources which is about 8.2 x10¹⁰m³ in the Xishan coal field.According to the actual situation of the Gujiao blocks,based on fuzzy mathematical theory that the gray relational analysis method,the target reservoirs of the Gujiao blocks are evaluated.This paper optimizes gas content, maximum depth,coal thickness,component analysis and industrial analysis as main factors of reservoir optimization, and establishes weight coefficient of each factors in the evaluation of resources. According to the size of the final score tradeoff value,the area establishes classification criteria in the resource assessment: evaluation values greater than 1.5 for the class Ⅰreservoir;1.5-0.6 for class Ⅱ reservoir; less than 0.6 for class Ⅲ reservoir. It can draw a conclusion: 2^# and 8^# are the optimal reservoir exploration and development of CBM in the Gujiao blocks; followed by the former, 6^# and 9^# are equally suitable for CBM development; 02^#,03^#,3^#,4^#,10^#,11^# are inappropriate for exploration and development of CBM.更多还原