ACCUMULATION STAGES OF STRATIGRAPHIC RESERVOIRS IN THE DONGYING SAG OF THE BOHAI BAY BASIN
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摘要: 随着渤海湾盆地东营凹陷勘探程度的逐步深入,地层油气藏在勘探中的地位不断提升,而成藏阶段的确定和划分对于地层油气藏成藏机理深入研究和成藏模式总结具有重要意义。在同源情况下,通过对东营凹陷不同区带不同类型油藏原油与烃源区源岩成熟度的对比分析,认为该区地层油气藏油气成熟度高,相对成藏时间晚;而次级构造带不同类型油藏有机包裹体均一温度统计分析表明,地层油气藏成藏时间主要在馆陶组沉积末期—明化镇组沉积时期。在综合考虑东营凹陷成藏地质要素历史演化的基础上,探讨并明确了与盆地构造—充填史相对应的地层油气藏成藏阶段模式,将其划分为多幕断陷期成藏准备、坳陷早期成藏高峰和坳陷后期油气保存等3个阶段。Abstract: The exploration degree in the Dongying Sag of the Bohai Bay Basin is gradually developing.The exploration position of stratigraphic reservoirs is continuously advancing.Comparative analysis of maturity of various crude oil and hydrocarbon source rocks showed that the maturity of stratigraphic reservoirs was high and the hydrocarbon accumulation dating was late.According to analysising the homogenization temperature of fluid inclusions of various oil reservoirs at the sub-structural belt,the hydrocarbon accumulation dating of stratigraphic reservoirs is from the final sedimentation period of the Guantao Formation to the sedimentation period of the Minghuazhen Formation.On the base of the evolution of reservoiring factors in the Dongying Sag,a stratigraphic reservoirs accumulating model was established,which correspond with tectonic history and filling history of basin,moreover it was divided into three stages: accumulation preparation stage,accumulation main stage and hydrocarbon preservation stage.
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Key words:
- maturity /
- fluid inclusion /
- accumulation stages /
- stratigraphic reservoirs /
- the Dongying Sag /
- the Bohai Bay Basin
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[1] 隋风贵,王学军,卓勤功等.陆相断陷盆地地层油气藏勘探现状与研究方向:以济阳坳陷为例[J].油气地质与采收率,2007,14(1):1～6 [2] 隋风贵,赵乐强,林会喜等.济阳坳陷第三系地层油气藏形成机制与组合模式[J].油气地质与采收率,2005,12(6):1～5 [3] 李素梅,庞雄奇,金之钧等.苏北金湖凹陷混合原油的地质地球化学特征[J].石油大学学报(自然科学版),2002,26(1):11～15 [4] 侯读杰.混源油气运移方向的地球化学识别[J].石油大学学报(自然科学版),2000,24(4):87～90 [5] 王文军.未熟油与成熟油的混源实验、混源理论图版及应用[J].石油勘探与开发,1999,26(4):34～37 [6] 王秉海,钱凯.胜利油区地质研究与勘探实践[M].东营:石油大学出版社,1992 [7] 李素梅,庞雄奇,邱桂强等.东营凹陷北部陡坡带稠油成藏机理与油气运聚特征[J].地球科学——中国地质大学学报,2004,29(4):451～456,466 [8] 邱楠生,金之钧,胡文喧.东营凹陷油气充注历史的流体包裹体分析[J].石油大学学报(自然科学版),2000,24(4):95～97,103 [9] 陈义才,罗小平,赵俊兴等.渤海湾盆地东濮凹陷文留地区储层烃类地球化学特征[J].石油实验地质,2007,29(5):486～489,494 [10] 高树新,任怀强,杨少春.渤海湾盆地济阳坳陷陈家庄凸起东段北斜坡油源特征及成藏分析[J].石油实验地质,2007,29(1):69～73 [11] 宗国洪,卓勤功,郝雪峰等.利用有机包裹体恢复油藏油气充注史及应用实例[J].油气地质与采收率,2002,9(3):49～51 [12] 张林晔,刘庆,张春荣.东营凹陷成烃与成藏关系研究[M].北京:地质出版社,2006 [13] 宋国奇.陆相断陷盆地断-坳转换体系与地层超覆油藏"T-S"控藏模式[J].地质学报,2007,81(9):1208～1214 -
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