成都理工大学学报（自然科学版）2013，Vol.40Issue(4)：431-437,7.DOI:10.3969/j.issn.1671-9727.2013.04.11
川中地区侏罗系天然气成因类型及气源
Genetic type and gas source of Jurassic natural gas in central Sichuan Basin, China
摘要
Abstract
There are different views on the genetic type of natural gas and gas source in Jurassic of the central Sichuan Basin.This paper uses three characteristics of the natural gas,that is,the characteristics of component,carbon isotope and light hydrocarbon,to recognize these problems again.An analysis of the components shows that the natural gas in Jurassic is mainly oil-type gas from kerogen cracking; Carbon isotope analysis indicates that the natural gas in Jurassic is mainly oil-type gas,but a part of it is coal-related gas.The light hydrocarbon analysis shows that the natural gas in Jurassic is mainly oil-type gas.Based on these results,it can be concluded that the natural gas in Jurassic of the central Sichuan Basin is mainly oil-type gas from kerogen cracking and only a small amount of it is coal-related gas.The oil-type gas in Jurassic reservoir derives from the Jurassic source rocks,but the coal-related gas derives from the upper Triassic source rocks.关键词
川中地区/侏罗系/成因类型/气源/碳同位素/轻烃Key words
Sichuan Basin/ Jurassic/ genetic type/ gas source/ carbon isotope/ light hydrocarbon分类
能源科技引用本文复制引用
王鹏,沈忠民,刘四兵,朱童..川中地区侏罗系天然气成因类型及气源[J].成都理工大学学报（自然科学版）,2013,40(4):431-437,7.基金项目
国家自然科学基金资助项目(41172119) （41172119）
