冀中坳陷饶阳凹陷留西地区沙三上亚段层序地层与隐蔽油藏
|
摘要
根据层序地层学基本原理,利用地震、测井、岩相等资料,对冀中坳陷饶阳凹陷留西地区古近系沙三上亚段进行了层序地层学研究,建立了全区的层序地层格架。研究表明,沙三上亚段为一个完整的三级层序,可分为低位、湖侵和高位3个体系域。在此基础上,分析了层序格架内各体系域的沉积相平面展布特征。沙三上亚段主要发育辫状河三角洲沉积相,其中前缘亚相分布面积最广。区内低位体系域砂体与湖侵体系域烃源岩形成了十分有利的生储盖组合,具有优越的隐蔽圈闭发育条件。结合区域构造特征,综合分析认为中南部沙三上亚段低位体系域辫状河三角洲前缘砂体是下一步隐蔽油藏勘探的有利区域。
Exploration of subtle reservoirs is a hot topic and one of the future directions in oil exploration.In this paper,research on sequence stratigraphy of the upper third member of the Shahejie Formation(Es3) in the Liuxi area of the Raoyang Sag,the Jizhong Depression is made based on basic principles of sequence stratigraphy and by using seismic,logging and lithofacies and other data.Sequence stratigraphic framework of the Liuxi area is established.According to the research,the upper Es3 is a complete third-order sequence which can be divided into lowstand,lake transgression and highstand system tract.Based on these results,the plane distribution features of sedimentary facies in each system tract are analyzed under the sequence stratigraphic framework.The upper Es3 is dominated by braided river delta facies,of which the delta front subfacies is the most extensive.The sandstone in the lowstand system tract and the source rock in the lake transgression system tract form an excellent source-reservoir-seal combination,which is favorable for the development of subtle reservoirs.Considering the regional structure features,it is suggested that the favorable exploration targets for subtle reservoirs should be the sand body in the braided river delta front of the lowstand system tract in the upper Es3 in the central and southern parts of the study area.
Exploration of subtle reservoirs is a hot topic and one of the future directions in oil exploration.In this paper,research on sequence stratigraphy of the upper third member of the Shahejie Formation(Es3) in the Liuxi area of the Raoyang Sag,the Jizhong Depression is made based on basic principles of sequence stratigraphy and by using seismic,logging and lithofacies and other data.Sequence stratigraphic framework of the Liuxi area is established.According to the research,the upper Es3 is a complete third-order sequence which can be divided into lowstand,lake transgression and highstand system tract.Based on these results,the plane distribution features of sedimentary facies in each system tract are analyzed under the sequence stratigraphic framework.The upper Es3 is dominated by braided river delta facies,of which the delta front subfacies is the most extensive.The sandstone in the lowstand system tract and the source rock in the lake transgression system tract form an excellent source-reservoir-seal combination,which is favorable for the development of subtle reservoirs.Considering the regional structure features,it is suggested that the favorable exploration targets for subtle reservoirs should be the sand body in the braided river delta front of the lowstand system tract in the upper Es3 in the central and southern parts of the study area.
引文
1顾家裕.陆相湖盆层序地层学模式[J].石油勘探与开发,1995,22(4):12～17
2纪友亮,张世奇,张宏.层序地层学原理及层序成因机制模式[M].北京:地质出版社,1998.1～30
3纪友亮,张世奇.陆相断陷盆地层序地层学[M].北京:石油工业出版社,1996.1～74
4石世革.黄骅坳陷板桥凹陷古近系沙一段中部层序地层学研究与岩性油气藏勘探[J].石油与天然气地质,2008,29(3):320～325
5林畅松,潘元林,肖建新,等.构造坡折带——断陷湖盆层序和油气预测的重要概念[J].地球科学——中国地质大学学报,2000,25(3):260～267
6冯有良,李思田,解习农.陆相断陷盆地层序形成动力学及层序地层模式[J].地学前缘,2000,7(3):119～132
7冯友良,李思田,邹才能.陆相断陷盆地层序地层学研究[M].北京:科学出版社,2006.165～168
8冯有良,李思田.东营凹陷沙三段层序低位域砂体沉积特征[J].地质论评,2001,47(3):278～286
9冯有良,邱以刚.高精度层序地层学在济阳坳陷古近系隐蔽油气藏勘探中的应用[J].石油学报,2003,24(1):49～52
10蔡希源,李思田,陈开元,等.陆相盆地高精度层序地层学:隐蔽油气藏勘探基础、方法与实践.基础理论篇[M].北京:地质出版社,2003.45～87
11薛良清.湖相盆地中的层序、体系域与隐蔽油气藏[J].石油与天然气地质,2002,23(2):115～120
12庞雄奇,陈冬霞,李玉龙,等.隐蔽油气藏资源潜力预测方法探讨与初步应用[J].石油与天然气地质,2004,25(4):370～376
13梁宏斌,王海潮,韩春元,等.冀中饶阳凹陷留西地区沙三上段辫状河三角洲沉积特征及其含油性[J].现代地质,2005,19(增刊):59～60
14王志宏,柳广第,金凤鸣,等.饶阳凹陷留西地区沙三上段岩性油藏成藏条件研究[J].石油天然气学报,2005,27(5):551～553
15操应长,姜在兴.陆相断陷湖盆层序地层单元的划分及界面识别标志[J].石油大学学报,1996,20(4):1～5
16宋国齐,卓勤功,孙莉.济阳坳陷第三系不整合油气藏运聚成藏模式[J].石油与天然气地质,2008,29(6):716～720,732
17晁静.埕岛油田馆上段高分辨率层序地层分析[J].油气地质与采收率,2009,16(2):4～7
18蔡雄飞.凝缩段的地质意义和作用[J].地层学杂志,1995,19(1):72～76
19张大智,纪友亮,韩春元,等.冀中坳陷饶阳凹陷留西地区古近系沙河街组沙三上亚段沉积相与隐蔽油藏[J].古地理学报,2008,10(6):274～285
20金凤鸣,张瑞锋,田建章,等.冀中坳陷饶阳凹陷留西沙三段岩性油藏勘探思路[J].中国石油勘探,2004(3):62～66
2纪友亮,张世奇,张宏.层序地层学原理及层序成因机制模式[M].北京:地质出版社,1998.1～30
3纪友亮,张世奇.陆相断陷盆地层序地层学[M].北京:石油工业出版社,1996.1～74
4石世革.黄骅坳陷板桥凹陷古近系沙一段中部层序地层学研究与岩性油气藏勘探[J].石油与天然气地质,2008,29(3):320～325
5林畅松,潘元林,肖建新,等.构造坡折带——断陷湖盆层序和油气预测的重要概念[J].地球科学——中国地质大学学报,2000,25(3):260～267
6冯有良,李思田,解习农.陆相断陷盆地层序形成动力学及层序地层模式[J].地学前缘,2000,7(3):119～132
7冯友良,李思田,邹才能.陆相断陷盆地层序地层学研究[M].北京:科学出版社,2006.165～168
8冯有良,李思田.东营凹陷沙三段层序低位域砂体沉积特征[J].地质论评,2001,47(3):278～286
9冯有良,邱以刚.高精度层序地层学在济阳坳陷古近系隐蔽油气藏勘探中的应用[J].石油学报,2003,24(1):49～52
10蔡希源,李思田,陈开元,等.陆相盆地高精度层序地层学:隐蔽油气藏勘探基础、方法与实践.基础理论篇[M].北京:地质出版社,2003.45～87
11薛良清.湖相盆地中的层序、体系域与隐蔽油气藏[J].石油与天然气地质,2002,23(2):115～120
12庞雄奇,陈冬霞,李玉龙,等.隐蔽油气藏资源潜力预测方法探讨与初步应用[J].石油与天然气地质,2004,25(4):370～376
13梁宏斌,王海潮,韩春元,等.冀中饶阳凹陷留西地区沙三上段辫状河三角洲沉积特征及其含油性[J].现代地质,2005,19(增刊):59～60
14王志宏,柳广第,金凤鸣,等.饶阳凹陷留西地区沙三上段岩性油藏成藏条件研究[J].石油天然气学报,2005,27(5):551～553
15操应长,姜在兴.陆相断陷湖盆层序地层单元的划分及界面识别标志[J].石油大学学报,1996,20(4):1～5
16宋国齐,卓勤功,孙莉.济阳坳陷第三系不整合油气藏运聚成藏模式[J].石油与天然气地质,2008,29(6):716～720,732
17晁静.埕岛油田馆上段高分辨率层序地层分析[J].油气地质与采收率,2009,16(2):4～7
18蔡雄飞.凝缩段的地质意义和作用[J].地层学杂志,1995,19(1):72～76
19张大智,纪友亮,韩春元,等.冀中坳陷饶阳凹陷留西地区古近系沙河街组沙三上亚段沉积相与隐蔽油藏[J].古地理学报,2008,10(6):274～285
20金凤鸣,张瑞锋,田建章,等.冀中坳陷饶阳凹陷留西沙三段岩性油藏勘探思路[J].中国石油勘探,2004(3):62～66
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