摘要
通过对天然气的组成和碳同位素组成的综合研究,综合实际地质条件,明确了泸州古隆起上三叠统须家河组天然气的成因类型和分布规律,并细分了不同气藏的气源贡献和来源特征。结果表明研究区存在3种来源与成因类型天然气:①以须家河组煤系为来源的自生自储型天然气;②以深层来源气为主的天然气;③以须家河组煤系烃源为主,深层来源为辅的混合型成因气。
Based on a study of gas components and carbon isotopes and an integrated research on the actual geological conditions, the authors investigated the genetic types and causes of natural gas distribution,and divided the gas source contribution and source characteristics in detail into different segments. The results show that in the study area there are three types of sources and origins of natural gas, i.e., self-storage type gas derived from Xujiahe coal serial hydrocarbon rocks, mixed type gas mainly derived from coal source rocks, and gas mainly derived from deep source. It seems that the gas mainly comes from deep-seated sources.
出处
《中国地质》
CAS
CSCD
北大核心
2010年第6期1747-1752,共6页
Geology in China
基金
四川省重点学科建设项目(SZD0414)资助
关键词
泸州古隆起
上三叠统
碳同位素
天然气成因
气源
Luzhou paleouplift
Upper Triassic
carbon isotope
genesis of natural gas
gas source
