全烃地球化学方法在复杂烃源研究中的应用  

THE APPLICATION OF THE WHOLE - HYDROCARBON GEOCHEMISTRY METHOD IN THE COMPLEX HYDROCARBON SOURCE RESEARCH

作　　者：李其荣[1] 王廷栋[1] 李延钧[1] 袁续祖[2] 杨坚[2] 

机构地区：[1]"油气藏地质与开发工程"国家重点实验室(西南石油学院),四川成都610500 [2]西南油气分公司

出　　处：《西南石油学院学报》2005年第3期1-4,7,i001,共6页Journal of Southwest Petroleum Institute

基　　金："油气藏地质与开发工程"国家重点实验室开放基金项目(PLN0114)。

摘　　要：利用天然气组成与碳同位素(C1-4)、轻烃(C4-8)、中分子量烃(C8-20)以及油岩生物标志化合物(>C15)全烃地球化学方法,按照油气分段捕获原理,确定了泸州古隆起嘉陵江组烃源,并建立了相应的烃源模式。研究表明该区嘉陵江组油气与自身烃源无关,主要来源于下伏烃源层,存在多期多源烃类注入,而且不同区域烃源贡献大小不同,其中古隆起核部和核部边缘以志留系烃源为主。In this paper, based on the mechanism of oil - gas fraction entrapment, the hydrocarbon sources in Jia Lingjiang Formation of the Luzhou Paleohigh has been confired by the whole - hydrocarbon geochemistry method which is the natural gas composition together with the carbon isotope ( C1-4 ) ,and light hydrocarbon (C4-8),and middle molecular weight hydrocarbon (C8-20) and the oil - rock biomarker ( > C15 ). Moreover, the relevant hydrocarbon source pattern has been established. The research results have suggested that oil - gas in Jia Lingjiang Formation has nothing to do with against itself hydrocarbon source, mostly comes from Hydrocarbon source stratum below it, that is the characteristics of much stages and sources. But the hydrocarbon source capacities varies from different area. For instance, the Silurian hydrocarbon source mainly distributes in the Center and its edge of the Luzhou Paleohigh.

关 键 词：碳同位素 轻烃 中分子量烃 生物标志化合物 烃源对比 泸州古隆起 

分 类 号：TE112.114[石油与天然气工程—油气勘探]