【作者】 苗月；

【导师】 申家年；

【作者基本信息】 东北石油大学 ， 地球化学， 2011， 硕士

【摘要】 本论文来自科研课题《海塔盆地中部富油断陷带成藏规律研究》,该课题是大庆油田有限责任公司海拉尔石油勘探开发指挥部委托东北石油大学开发的。主要是因为以前对海塔盆地成藏规律的研究仅限于凹陷范围,没有盆地尺度上的统一认识。本次研究主要就是针对海塔盆地实际问题,开展油气特征、来源和成因的研究。通过气相色谱技术、气质联用技术、碳同位素分析技术和生物标志化合鉴定等技术,利用新资料,结合地质研究,采用新思路,统计分析了原油的地球化学特征：通过油油对比和油源对比,确定了油气的来源；利用物性和成熟度指标精细划分原油,结合地质资料,分析了海塔盆地油气的成因机制。海塔盆地是典型的断陷型盆地,石油地质条件复杂,各凹陷具有多物源、近物源、相带窄、相变大等特点。主要烃源岩层是南一段上和特殊岩性段。首先通过统计和各种图件分析原油地球化学特征,基本都继承了源岩的特征,性质取决于源岩的成熟度和母质类型；之后利用生物标志化合物老鲛烷植烷和成熟度参数C29ααα20S/(20S+20R)与C29-ββ/(αα+ββ),Ts/(Ts+Tm)与∑C27重排/∑C27规则以及组分碳同位素进行油油对比和油源对比,海塔盆地原油主要来源于南一段上和特殊岩性段源岩；最后根据物性和成熟度指标精细划分原油类型,结合地质资料,得出油气成因机制,海塔盆地基本是近源成藏,有短距离侧向运移,大部分相对低熟原油都是早期生成的油气,运移到边缘聚集。更多还原

【Abstract】 This thesis is from scientific research topic "Research the Reservoiring Rule of Haita Basin Oil-rich Central Rift".This topic is Hailar Exploration and Development Center, Daqing Oilfield Company of CNPC entrust Northeast Petroleum University development. Mainly because of the researches reservoiring rule of Haita Basin before are limited to sag range, no basin scale of unified recognition.As for the actual problems of Haita Basin, conduct hydrocarbon characteristics, source and causes of research., By GC, GC-MS combination technology, carbon isotope analysis and biological symbol combined identification technology, and combining with new data and geological research, adopting new ideas, statistics and analysis of the geochemical characteristics of crude oil; By oil-oil and oil-source correlation, determine the oil source. According to the physical properties and maturity index fine division of crude oil, and combining with geological research, analyses the hydrocarbon origin mechanism of Haita Basin.Haita Basin is typical of faulted basin, oil geological conditions are complex, each sag has much material sources, near material sources, narrow phase belt, phase change big etc characteristics. Major hydrocarbon source rocks are n1 upper and tsyxd.First through the statistics and various pictures analyse petroleum geochemistry characteristics, the overwhelming majority inherited source rocks characteristics, and depends on the source rocks maturation and organic types; After using biomarker compound Pr, Ph and maturity parameters C29ααα20S/(20S+20R) and C29-ββ/(αα+ββ), Ts/(Ts+Tm)与ΣC27 rearrangement/ΣC27rules and carbon isotope, correlating oil-oil and oil-source, The crude oil of Haita Basin are from n1 upper and tsyxd rock-sources; Last according to the physical properties and maturity index fine division of crude oil, and combining with geological research, draw the hydrocarbon origin mechanism.Hatai Basin most is reservoiring nearly sources with short-range migration, Most of the relatively immature oil are early formation of oil migration to edge and gathered.更多还原