准噶尔盆地侏罗系生烃特征及勘探方向  

HYDROCARBON GENERATION CHARACTERISTICS AND EXPLORATION DIRECTION IN JURAGGAR BASIN

作　　者：王屿涛[1] 蒋少斌[1] 

机构地区：[1]新疆石油管理局勘探开发研究院

出　　处：《新疆石油地质》1995年第3期222-226,共5页Xinjiang Petroleum Geology

摘　　要：准噶尔盆地中、下侏罗统煤系地层中的泥岩和煤岩均具有良好的生烃潜力；已发现的侏罗系油气藏中的烃类可能主要与煤系地层中泥质烃源岩有关。从油源角度分析，侏罗系油藏可分为下源型和自源型，前者主要分布在盆地北部，后者主要分布在盆地南部。形成纯气藏的生物气、过熟裂解气均分布在盆地南缘山前构造带。Mudstone andcoal seam of coal measure strata possess better hydrocarbongeneration potential in Middle and Lower Jurassic of Junggar basin; hydrocarbon in Juras-sic reservoir is relatedwith mudy source rock of coal measure strata,From onsource,Jurassic reservoir can be divided into”old-genetic and new-reserve' type and authigenictype.The former mainly distributes in north part of Junggar basin,the latter in southpart,biogas and pyrolysis gas to form gas reservoir are all in piedmont structural zone insouth margin of Junggar basin.

关 键 词：准噶尔盆地 油气成因 勘探方向 烃类 油气藏 

分 类 号：P618.130.1[天文地球—矿床学] P618.130.8[天文地球—地质学]