【摘要】 阳信洼陷具有烃类气与二氧化碳气共存的独特地质格局,天然气资源十分丰富。通过对该洼陷天然气成藏事件及相互关系的分析,可将其划分为自源天然气成藏系统与它源天然气成藏系统,并具有各自的成藏特征与聚集规律。多种成藏系统在平面上及纵向上共存、叠置,构成了阳信洼陷天然气的富集特点。更多还原

【Abstract】 <abstract>e natural gas in Yangxing subsag, which particularly includes hydrocarbon gas and CO2 gas together, is sufficiently abundant. According to the analysis on reservoir forming affairs of the natural gas and their interrelation , Yangxing subsag can be divided into self-generating gas reservoir forming system and allogenic gas reservoir forming system. The two systems have different forming characteristics and accumulation rules. Multiple gas reservoir forming systems exist together and superimpose in plane and in longitudinal profile, which makes of the features of the abundant gas.更多还原