Oil-gas microseapage and shallow hydrocarbon anomaly in craton basin  

作　　者：张同伟 王先彬 程学惠 申歧祥 

机构地区：[1]State Key Laboratory of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000, China

出　　处：《Chinese Science Bulletin》1995年第18期1582-1584,共3页

摘　　要：Although it has been accepted that oil and gas can migrate a long distance throughfaults, surface of unconformity and fractures in vertical and horizontal directions, it isuncertain whether deep oil-gas can reach the surface in stable craton basin in which faultsand fractures are poorly developed. The vertical changes of pyrolysis hydrocarbon,

关 键 词：Oil-gas microseapage and shallow hydrocarbon anomaly in craton basin DEEP 

分 类 号：P618.13[天文地球—矿床学]