东营凹陷沙河街组四段上亚段层序地层特征与沉积体系演化
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摘要
本文应用层序地层学方法,通过钻井、测井、地震反射等标志,将东营凹陷沙四段上亚段划分为一个三级层序,并以地层叠置样式、岩性、岩相的变化细分出低位、湖侵和高位体系域,在连井剖面层序对比的基础上建立了研究区沙四段上亚段层序地层格架。通过岩芯、钻井、测井、古生物等资料的分析识别出沙四段上亚段主要发育扇三角洲、近岸水下扇、三角洲、湖泊等主要相类型。本文首次系统分析了东营凹陷沙四段上亚段沉积相的构成、演化与分布规律,明确了各种不同沉积砂体的相互联系以及共生规律,建立了沙四段上亚段沉积模式,这对于指导研究区隐蔽油气藏的勘探具有重要意义。
The upper submember of the 4th member of the Shahejie Formation in the Dongying depression can be divided into one sequence according to sequence boundaries,such as well logging curve and seismic reflective characteristics.Lowstand,lacustrine transgressive and highstand systems tracts can be subdivided by the stacking patterns of stratigraphy,changes of lithology and lithofacies.The sequence stratigraphic correlation in well-tie sections made it possible to construct the regional stratigraphic framework.Fan delta,near-shore underwater fans,delta,beach bar and limestone beach sedimentary system facies can be identified by fully applying the core、 drilling、 logging and paleontology data.The architecture、 evolution、 distribution of sedimentary faces of upper Es4 in the Dongying depression is firstly analyzed;the relation and coexisting of various sandstones is clarified;the sedimentary mode is established;These researches have great significance in finding out subtle traps in this depression.
The upper submember of the 4th member of the Shahejie Formation in the Dongying depression can be divided into one sequence according to sequence boundaries,such as well logging curve and seismic reflective characteristics.Lowstand,lacustrine transgressive and highstand systems tracts can be subdivided by the stacking patterns of stratigraphy,changes of lithology and lithofacies.The sequence stratigraphic correlation in well-tie sections made it possible to construct the regional stratigraphic framework.Fan delta,near-shore underwater fans,delta,beach bar and limestone beach sedimentary system facies can be identified by fully applying the core、 drilling、 logging and paleontology data.The architecture、 evolution、 distribution of sedimentary faces of upper Es4 in the Dongying depression is firstly analyzed;the relation and coexisting of various sandstones is clarified;the sedimentary mode is established;These researches have great significance in finding out subtle traps in this depression.
引文
戴朝强,张金亮.2006.鲁北济阳坳陷东营凹陷南坡沙河街组第四段上亚段高分辨率层序地层格架.地质通报,25(9～10):1168～1174.
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侯方浩,蒋裕强,方少仙,等.2005.四川盆地上三叠统香溪组二段和四段砂岩沉积模式.石油学报,26(2):30～38.
李秀华,肖焕钦,王宁.2001.东营凹陷博兴洼陷沙四段上亚段储集层特征及油气富集规律.油气地质与采收率,8(3):21～24.
刘伟,吕优良,徐徽,等.2004.东营凹陷南斜坡东段沙四段上亚段沉积相与砂体展布研究.江汉石油学院学报,26(2):23～25.
盛文波,操应长,刘晖,等.2008.东营凹陷古近纪控盆断层演化特征及盆地结构类型.石油与天然气地质,29(3):290～296.
孙锡年,刘渝,满燕.2003.东营凹陷西部沙四段滩坝砂岩油气成藏条件.国外油田工程,19(7):24～25.
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王居峰.2005.济阳坳陷东营凹陷古近系沙河街组沉积相.古地理学报,7(1):45～58.
张德武,冯有良,邱以钢,等.2004.东营凹陷下第三系层序地层研究与隐蔽油气藏预测.沉积学报,22(1):67～72.
张善文,曾溅辉,肖焕钦,等.2004.济阳坳陷岩性油气藏充满度大小及分布特征.地质论评,50(4):365～369.
周丽清,邵德艳,房世瑜,等.1999.板桥凹陷沙河街组滩坝砂体.石油与天然气地质,19(4):351～355.
朱光有,金强,张水昌,等.2004.东营凹陷沙河街组湖相烃源岩的组合特征.地质学报,78(3):416～427.
朱筱敏,信荃麟,张晋仁.1994.断陷湖盆滩坝储集体沉积特征及沉积模式.沉积学报,12(2):20～28.
朱筱敏,王英国,钟大康,等.2007.济阳坳陷古近系储层孔隙类型与次生孔隙成因.地质学报,81(2):197～204.
邹灵.2008.东营凹陷南部缓坡带沙四段滩坝砂储层分布及成藏主控因素.油气地质与采收率,15(2):34～36.
Gallyoway W E.1998.Silicalstic slop and base of slop depositionalsystems:component of facies,statigraphic architecture,andclassification.AAPG Bulletin,82(4):569～595.
Li Sumei,Pang Xiongqi,Li Maowen,et al.2005.Geochemistry ofpetroleumsystems in the Niuzhuang south slope of Bohai Bay
Basin:Part1.Evidence for new exploration horizons in amaturely explored petroleum province.Organic Geochemistry,36(8):1135～1150.
Zhang Jinliang,Wang Baoqing.1995.Beach and bar deposits of thePalaeogene Dongying Formationin the Henan oil field.ScientiaGeologica Sinica,4(4):497～504.
蒋解梅,王新征,李继山,等.2007.东营凹陷沙四段滩坝砂微相划分与砂体横向预测——以王家岗油田王73井区为例.石油地质与工程,21(4):12～15.
侯方浩,蒋裕强,方少仙,等.2005.四川盆地上三叠统香溪组二段和四段砂岩沉积模式.石油学报,26(2):30～38.
李秀华,肖焕钦,王宁.2001.东营凹陷博兴洼陷沙四段上亚段储集层特征及油气富集规律.油气地质与采收率,8(3):21～24.
刘伟,吕优良,徐徽,等.2004.东营凹陷南斜坡东段沙四段上亚段沉积相与砂体展布研究.江汉石油学院学报,26(2):23～25.
盛文波,操应长,刘晖,等.2008.东营凹陷古近纪控盆断层演化特征及盆地结构类型.石油与天然气地质,29(3):290～296.
孙锡年,刘渝,满燕.2003.东营凹陷西部沙四段滩坝砂岩油气成藏条件.国外油田工程,19(7):24～25.
王冠民,高亮,马在平,等.2007.济阳坳陷沙河街组湖相页岩中风成粉砂的识别及其古气候意义.地质学报,81(3):413～417.
王居峰.2005.济阳坳陷东营凹陷古近系沙河街组沉积相.古地理学报,7(1):45～58.
张德武,冯有良,邱以钢,等.2004.东营凹陷下第三系层序地层研究与隐蔽油气藏预测.沉积学报,22(1):67～72.
张善文,曾溅辉,肖焕钦,等.2004.济阳坳陷岩性油气藏充满度大小及分布特征.地质论评,50(4):365～369.
周丽清,邵德艳,房世瑜,等.1999.板桥凹陷沙河街组滩坝砂体.石油与天然气地质,19(4):351～355.
朱光有,金强,张水昌,等.2004.东营凹陷沙河街组湖相烃源岩的组合特征.地质学报,78(3):416～427.
朱筱敏,信荃麟,张晋仁.1994.断陷湖盆滩坝储集体沉积特征及沉积模式.沉积学报,12(2):20～28.
朱筱敏,王英国,钟大康,等.2007.济阳坳陷古近系储层孔隙类型与次生孔隙成因.地质学报,81(2):197～204.
邹灵.2008.东营凹陷南部缓坡带沙四段滩坝砂储层分布及成藏主控因素.油气地质与采收率,15(2):34～36.
Gallyoway W E.1998.Silicalstic slop and base of slop depositionalsystems:component of facies,statigraphic architecture,andclassification.AAPG Bulletin,82(4):569～595.
Li Sumei,Pang Xiongqi,Li Maowen,et al.2005.Geochemistry ofpetroleumsystems in the Niuzhuang south slope of Bohai Bay
Basin:Part1.Evidence for new exploration horizons in amaturely explored petroleum province.Organic Geochemistry,36(8):1135～1150.
Zhang Jinliang,Wang Baoqing.1995.Beach and bar deposits of thePalaeogene Dongying Formationin the Henan oil field.ScientiaGeologica Sinica,4(4):497～504.
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