【摘要】 基于烃源岩成熟度演化分析、流体包裹体资料,结合埋藏史综合分析对南堡凹陷1号构造带油气成藏期进行了研究,采用盆地二维模拟技术对主要成藏期油气成藏过程进行了恢复。结果表明:研究区烃源岩内部砂体和古潜山在东营组沉积末期有一期小规模油充注,大规模油气充注期为明化镇组沉积中期;储层中检测到发橙色和绿色荧光2种类型的烃类包裹体,盐水包裹体均一温度具有2个峰值区间,分别为90～110℃和130～140℃;源上成藏组合油气大规模充注期为明化镇组沉积晚期,主要通过油源断层垂向输导,储层中检测到发黄色荧光的烃类包裹体,盐水包裹体均一温度峰值区间为90～100℃。分析认为,研究区油气主要来源于沙三段和沙一段烃源岩,烃源岩内部砂体和古潜山具有较大的勘探潜力。更多还原

【Abstract】 Hydrocarbon accumulating stages in the 1st tectonic belt of Nanpu Depression was studied by the analyzing the microscopic fluorescence and homogenization temperatures of fluid inclusions and buried history in combination with hydrocarbon generation.Based on the research on two-dimensional modeling in main reservoir forming stages,the hydrocarbon accumulation process was restored.The results show that at the late of Dongying Formation,there was a small scale oil filling-injection within the source rocks and buried hills,and the large scale oil filling-injection was in the middle Minghuazhen Formation.The oil inclusions in the reservoir had orange and green fluorescences.Homogenization temperatures peak of fluid inclusions was at 90～110℃ and the other was 130～140℃.In the late Minghuazhen Formation,there was a large scale hydrocarbon filling-injection in reservoir upper source rock by source faults,and the fluorescence of oil inclusions in the reservoir was yellow.The peak of homogenization temperatures was 90～100℃.The results show the crude oil was mainly come from Es3 and Es1source rocks,and the inner sandbodies in source rock and buried hill have greater potential for oil exploration.更多还原