从油气地化特征探讨川西北中坝雷三气藏的气源  

From Geochemical Characteristics of Oil and Gas to Discuss the Gas Source of Lei-3 Reservoir, Zhongba Gas Field, in North-west Sichuan

作　　者：王廷栋[1] 郑永坚[1] 李绍基[1] 曾庆庸 何军[2] 

机构地区：[1]西南石油学院 [2]四川石油管理局川西北矿区

出　　处：《天然气工业》1989年第5期20-26,6,共7页Natural Gas Industry

摘　　要：本文在对中坝气田天然气的成分、碳同位素特征及凝析油的轻烃组成研究的基拙上,结合构造条件分析,指出雷三气藏的气是混源气,气源主要通过断层来自上三叠统须一段。考虑到中、下三叠统生油条件较差,今后在川西北找气,应重视生油层系有机相、运移通道和储集条件配置的研究。Based on the study of the component and carbon isotope characteristic of natural gas and the light-hydrocarbon composition of condensate in Zhongba Gas Field and combined with analyzing its structural conditions,it is pointed out that the gas in Lei-3 Reservoir is the mixed-source one which mainly came form the first member of Xujiahe Formation through the faults. Considering the worsesource conditions in Middle-Lower Triassic,it should pay more attention to researching the match of or-ganic facics of source bcds.migration channels and reservoir conditions in search for gas in northwest Sichuan from now on.

关 键 词：油气 地球化学特征 气藏 气源 

分 类 号：P618.130.2[天文地球—矿床学]