油气地质与采收率2012,Vol.19Issue(1):11-14,4.
页岩气成藏地质条件及中国上扬子区页岩气潜力
摘要
Abstract
Through surveying the geological characteristics of North American shale gas reservoirs,this paper brings out the distribution features of shale gas reservoirs and reservoir-forming conditions,on the basis of above,the shale gas potential in the upper Yangtze region is analyzed. The thermogene shale gas reservoirs are mainly developed on front slope and fore-edge of foreland basins, while biogenesis shale gas reservoirs are located in boundary cratonic basins,and certain differences exist between these two types of shale gas reservoirs. Shale gas reservoir-forming conditions and evaluation elements include burial depth, thickness, Ro, TOC, development of natural fractures, porosity and permeability, brittle mineral composition, adsorbed gas content, formation temperature and pressure,etc. It's suggested that the black shale of lower Cambrian Qiongzhusi formation and lower Silurian Longmaxiformation have great potential of shale gas resource and are the most favorable marine facies shale gas exploration targets in China.关键词
页岩气/地质条件/海相/潜力/上扬子区Key words
shale gas/geological conditions/marine facies/potential/upper Yangtze region分类
能源科技引用本文复制引用
孟庆峰,侯贵廷..页岩气成藏地质条件及中国上扬子区页岩气潜力[J].油气地质与采收率,2012,19(1):11-14,4.基金项目
国家重大专项"海外重点裂谷盆地油气成藏规律及目标优选"(2008ZX05029-001). (2008ZX05029-001)