Genetic Type and Gas Source of Jurassic Natural Gas in Central Sichuan Basin, China
详细信息
- 责任者：Wang Peng (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Shen Zhongmin
- 刊名：Journal of Chengdu University of Technology
- 出版年：2013
- 卷期：40(4)
- 关键词：天然气成因 ; natural gas origin ; 四川 ; Sichuan Province
- 页码：p.431-437
- 图表：7 illus., 2 tables, 20 refs.
- 分类号：1003
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
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.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |