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通过对新疆阜康白杨河矿区急倾斜煤层岩石物理特征、储层裂隙系统特征、煤层水特征的研究,发现本区煤层水垂向分带特征明显,气水分异程度比较高。对比研究了本区和沁南盆地煤层水赋存特征和可采性,认为本区可采性优于沁南盆地。在煤层气井排采实例分析的基础上,对本区煤层气藏开发的井型、钻井、压裂和排采等工程技术给出了指导建议。
Based on the petrophysical characteristics of steep coal seam, the characteristics of reservoir fracture system and the characteristics of coal seam water in Baiyanghe Mining Area, Fukang, Xinjiang, it is found that the characteristics of vertical zonation of coal seam water are obvious and the degree of gas-water difference is relatively high. The characteristics and admissibility of coalbed water in this area and Qinnan basin are comparatively studied, and it is considered that the recoverability in this area is better than that in Qinnan basin. Based on the analysis of the CBM well production example, the paper gives some advice on the engineering technology of well type, drilling, fracturing and discharge in CBM reservoir development in this area.