摘要
天然气成因类型的判别是系统地进行天然气地质研究的基础 .利用相关图件法、图解法、聚类分析法等多种方法对苏北盐城凹陷天然气的组成成分、碳同位素组成特征、轻烃组成等多种资料进行详细分析 ,认为盐城天然气属于混源气 ,但是以腐泥型干酪根生成的油型气为主 .
Determining the genetic type of natural gas is the foundation to systemically studying natural gas geology. The compositions of the natural gas, carbon isotope and lighter hydrocarbon from Yancheng Sag are analysed by the several methods such as relative map method, graphic method and clustering method. It is conclused that the natural gas in Yancheng Sag belongs to the mixed gas of coal type gas and oil type gas, and the oil type gas from sapropelic type kerogen is dominant.
出处
《西安石油学院学报（自然科学版）》
EI
2000年第4期18-21,共4页
Journal of Xi'an Petroleum Institute（Natural Science Edition)
关键词
盐城凹陷
天然气成因
碳同位素
轻烃
类型
Yancheng Sag, natural gas genesis, carbonate isotope, lighter hydrocarbonate
