摘要
通过系统收集、分析已有煤矿、煤层气勘探及最新煤层气生产资料,对影响筠连区块煤层气富集的煤层厚度、煤层埋深、构造、沉积等诸多因素进行研究.构造及沉积共同控制了向斜-水动力封堵型成藏模式及逆断层-岩性封堵型成藏模式,认为埋深较大、地下水滞留区及封闭条件较好的向斜轴部与逆断层下盘为下一步煤层勘探开发的有利区域.
Through collecting and analyzing the existing coal mine,coalbed gas exploration and the latest CBM production data,many factors such as coal seam thickness,coal seam depth,structure,deposition affecting the coalbed methane enrichment in Junlian area are studied.The tectonic and sedimentary systems jointly control the syncline-hydrodynamic plugging type accumulation model and the reversed fault-lithologic plugging type accumulation model.It is considered that the deep buried depth,the groundwater retention area and the better closed condition of the syncline axis and the reverse fault footwall are the favorable areas for the further exploration and development of the coal seam.
作者
芮昀
刘成
王建君
RUI Yun;LIU Cheng;WANG Jian-jun(Zhejiang Oilfield Exploration and Development Institute,Hangzhou 310023,China)
出处
《煤炭技术》
CAS
2019年第7期87-89,共3页
Coal Technology
基金
国家科技重大专项(2016ZX05041)
关键词
四川盆地
筠连区块
煤层气
成藏条件
成藏模式
Sichuan basin
Junlian block
coalbed gas
reservoir forming conditions
reservoir forming model
