西北地质2017，Vol.50Issue(4)：209-214,6.
渝东北下寒武统页岩气储层特征研究
The Research on Reservoir Characteristics of Lower Cambrian Shale Gas in Northeast Chongqing
摘要
Abstract
The Dabashan arcuate tectonic belt in Northeast Chongqing is located at the northern margin of the Yangtze Craton,which is a thrust belt formed by the multi-stage superposition.In the area,the Lower Cambrian is a set of open marine shelf sediments,where developed the organic carbon black and siliceous shale.The set of shale gas has various types of reservoir space,their pore diameters are 3.1～5.6 nm,their BET specific surface area is 8.26 m2/g,which is typical low porosity and low permeability.The dark shale is mainly composed of quartz and feldspar,and the clay minerals take second place,and the carbonate minerals are generally low.This set of reservoir has a good capacity of shale gas adsorption and gas-bearing shows,which an important layer for the exploration and evaluation of shale gas in this region.关键词
渝东北/下寒武统/页岩气/储层特征Key words
Northeast Chongqing/Lower Cambrian/shale gas/reservoir characteristics分类
天文与地球科学引用本文复制引用
张志平,方光建,曾春林,向新涛,张跃磊,李超,郭东鑫,王巧丽..渝东北下寒武统页岩气储层特征研究[J].西北地质,2017,50(4):209-214,6.基金项目
重庆市国土资源和房屋管理局科技项目资助“渝东北下寒武统页岩气吸附解析模型及应用研究”(KJ-2015013) （KJ-2015013）
