东濮凹陷户部寨气田天然气成藏地球化学特征  

GEOCHEMICAL CHARACTERISTICS OF GAS ACCUMULATION IN HUBUZHAI GAS FIELD,DONGPU DEPRESSION

作　　者：李宗亮[1] 蒋有录[1] 鲁雪松[1] 

机构地区：[1]中国石油大学地球资源与信息学院,山东东营257061

出　　处：《西南石油大学学报（自然科学版）》2008年第2期57-60,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：主要通过天然气组分、碳同位素、氩同位素、轻烃等地球化学数据,分析了东濮凹陷户部寨气田天然气来源、运聚相态,并结合烃源岩的埋藏演化史和断层活动期,综合判断了天然气充注成藏的时间,分析了成藏过程。研究表明,户部寨气田沙三下亚段—沙四段天然气主要为沙一期石炭—二叠系生成的煤成气,运移以游离相为主,混有很少量东营中期濮卫洼陷沙三下—沙四上亚段生成的油型气。The origin and phase state of natural gas migration in Hubuzhai gas field,Dongpu Sag are discussed based on the study on hydrocarbon composition,carbon and argon isotope of natural gas and light hydrocarbon.Combined with analysis of the history of hydrocarbon generation of source rock and fault activity,the accumulation time and history of gas are comprehensively determined.It is indicated that the gas in the lower Es3 and Es4 in Hubuzhai gas field was mainly coal-formed from C-P in the Es1 depositional stage and it migrated mostly in free phase.There is a litle oil- type gas in low Es3 to up Es4 in Puwei sub-sag in the Ed depositional stage.

关 键 词：户部寨气田 地球化学 气源 相态 成藏期 

分 类 号：TE122.1[石油与天然气工程—油气勘探]