东营凹陷博东潜山周缘古近系沙河街组沉积相及沉积体系演化
|
摘要
在对地震、测井、录井及岩心沉积特征等研究的基础上,分析了石村断层的发育特征及其对博东潜山演化的控制作用,系统研究了沙河街组时期沉积相的演化与分布规律。研究表明:石村断层控制了博东潜山的演化,沙四段—沙三下亚段沉积时期,博东潜山快速隆升,对山体两侧沉积面貌影响较大,而对沙二段上部及其上覆地层的影响不明显。研究区沙四上亚段沉积时期到沙三下亚段沉积时期主要发育三角洲前缘和前三角洲亚相,滨浅湖亚相的滩坝、生物滩沉积,以及半深湖—深湖沉积;沙三中亚段沉积时期到沙一段沉积时期主要发育三角洲前缘、前三角洲亚相以及滨浅湖亚相的生物滩等沉积。受石村断层和博东潜山的共同影响,早期(沙四上亚段—沙三上亚段)南北两翼相分异,晚期(沙二下亚段—沙一段)南北两翼相一致。
Based on the seismic survey,logging data and core,this paper analysizes the development characteristics of the Shicun fault and its controlling effect on the evolution of the Bodong buried hill,and studies systematically the sedimentary facies types of the Shahejie Formation for the first time.The research shows that the evolution of the Bodong buried hill is controlled by the Shicun Fault.The rapid uplifting of the Bodong buried hill affects the sedimentary geomorphology on both two sides in the Es4 and the lower Es3.However it has a weak effect on the upper Es2 and the layers above.During the sedimentary period when the upper part of the fourth Member of Shahejie Formation deposited and when the lower part of the third Member of Shahejie Formation deposited,here mainly developed delta front subfacies,prodelta subfacies,beach bar and organic bank deposition of lakeshore-shallow lake subfacies,semi-deep lake deposition and deep lake deposition.During the sedimentary period between the middle part of the third Member of Shahejie Formation deposited and the first Member of Shahejie Formation deposited,here mainly developed delta front subfacies,prodelta subfacies and organic bank deposition of lakeshore-shallow lake subfacies and so on.Under the influence of the Shicun fault and the Bodong buried hill,facies differentiation of the North and South wings can be seen in the early stage(the Es4 and the upper Es3) while the same in the late stages(the lower Es2 and the Es1).
Based on the seismic survey,logging data and core,this paper analysizes the development characteristics of the Shicun fault and its controlling effect on the evolution of the Bodong buried hill,and studies systematically the sedimentary facies types of the Shahejie Formation for the first time.The research shows that the evolution of the Bodong buried hill is controlled by the Shicun Fault.The rapid uplifting of the Bodong buried hill affects the sedimentary geomorphology on both two sides in the Es4 and the lower Es3.However it has a weak effect on the upper Es2 and the layers above.During the sedimentary period when the upper part of the fourth Member of Shahejie Formation deposited and when the lower part of the third Member of Shahejie Formation deposited,here mainly developed delta front subfacies,prodelta subfacies,beach bar and organic bank deposition of lakeshore-shallow lake subfacies,semi-deep lake deposition and deep lake deposition.During the sedimentary period between the middle part of the third Member of Shahejie Formation deposited and the first Member of Shahejie Formation deposited,here mainly developed delta front subfacies,prodelta subfacies and organic bank deposition of lakeshore-shallow lake subfacies and so on.Under the influence of the Shicun fault and the Bodong buried hill,facies differentiation of the North and South wings can be seen in the early stage(the Es4 and the upper Es3) while the same in the late stages(the lower Es2 and the Es1).
引文
[1]李丕龙.陆相断陷盆地油气地质与勘探[M].北京:石油工业出版社,2003:70-80.
[2]苏宗富,邓宏文,陶宗普,等.济阳坳陷古近系区域层序地层格架地层特征对比[J].古地理学报,2006,8(1):89-102.
[3]武法东,陈建渝,刘从印,等.东营凹陷第三纪层序地层格架及沉积体系类型[J].现代地质,1998,12(4):559-566.
[4]邱隆伟,符晶,杨勇强,等.东营凹陷博东潜山周缘沙河街组等时地层对比研究[J].石油与天然气地质,2010,31(5):552-560.
[5]蔡进功,姜秀芳,范存堂.东营盆地始新统沉积体系及盆地演化[J].沉积学报,1995,13(增刊):27-37.
[6]姜在兴,杨伟利,操应长.东营凹陷沙河街组三段—二段下亚段沉积层序及成因[J].石油与天然气地质,2002,23(2):127-129.
[7]邱桂强,王居峰,李从先.东营凹陷沙三中东营三角洲地层格架与油气勘探[J].同济大学学报,2001,19(4):569-574.
[8]田继军,姜在兴.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[J].地质学报,2009,83(6):837-838.
[9]杨勇强,邱隆伟,姜在兴,等.陆相断陷湖盆滩坝沉积模式——以东营凹陷古近系沙四上亚段为例[J].石油学报,2011,32(3):417-423.
[10]朱筱敏,信荃麟,张晋仁.断陷湖盆滩坝储积体沉积特征及沉积模式[J].沉积学报,1994,12(2):20-27.
[11]周丽清,邵德艳,房世瑜,等.板桥凹陷沙河街组滩坝砂体[J].石油与天然气地质,1998,19(4):351-355.
[12]陈世悦,杨剑萍,操应长.惠民凹陷西部下第三系沙河街组两种滩坝沉积特征[J].煤田地质与勘探,2000,28(3):1-4.
[2]苏宗富,邓宏文,陶宗普,等.济阳坳陷古近系区域层序地层格架地层特征对比[J].古地理学报,2006,8(1):89-102.
[3]武法东,陈建渝,刘从印,等.东营凹陷第三纪层序地层格架及沉积体系类型[J].现代地质,1998,12(4):559-566.
[4]邱隆伟,符晶,杨勇强,等.东营凹陷博东潜山周缘沙河街组等时地层对比研究[J].石油与天然气地质,2010,31(5):552-560.
[5]蔡进功,姜秀芳,范存堂.东营盆地始新统沉积体系及盆地演化[J].沉积学报,1995,13(增刊):27-37.
[6]姜在兴,杨伟利,操应长.东营凹陷沙河街组三段—二段下亚段沉积层序及成因[J].石油与天然气地质,2002,23(2):127-129.
[7]邱桂强,王居峰,李从先.东营凹陷沙三中东营三角洲地层格架与油气勘探[J].同济大学学报,2001,19(4):569-574.
[8]田继军,姜在兴.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[J].地质学报,2009,83(6):837-838.
[9]杨勇强,邱隆伟,姜在兴,等.陆相断陷湖盆滩坝沉积模式——以东营凹陷古近系沙四上亚段为例[J].石油学报,2011,32(3):417-423.
[10]朱筱敏,信荃麟,张晋仁.断陷湖盆滩坝储积体沉积特征及沉积模式[J].沉积学报,1994,12(2):20-27.
[11]周丽清,邵德艳,房世瑜,等.板桥凹陷沙河街组滩坝砂体[J].石油与天然气地质,1998,19(4):351-355.
[12]陈世悦,杨剑萍,操应长.惠民凹陷西部下第三系沙河街组两种滩坝沉积特征[J].煤田地质与勘探,2000,28(3):1-4.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心