浅析陆相湖盆坡折带理论及其对沉积的控制Theory of slope break belt in land facies lake basin and its control on sedimentation
吕大炜,李增学,孙静,吴立荣,郭建斌,刘海燕
LU Da-wei1,LI Zeng-xue1,SUN Jing2,WU Li-rong1,GUO Jian-bin1,LIU Hai-yan1(1.Shandong Technology and Science University
摘要(Abstract):
在分析坡折带基本理论和研究基础上,根据坡折带的形成过程,将其划分为同沉积坡折带和前沉积坡折带。依据成因机制,可以将同沉积坡折带划分为构造坡折带、沉积坡折带,而前沉积坡折带可以划分为古地貌坡折带和侵蚀坡折带。不同类型坡折带对沉积控制机制不同:构造坡折带形成的圈闭和深切谷圈闭是油气勘探重要场所;沉积坡折带易形成岩性圈闭,也为油气勘探主要目标;古地貌坡折带和侵蚀坡折带一般只控制了低位体系域的发育,影响了低位体系域的非构造性圈闭发育。
On the basic principle of slope break belt and on the basis of study,slope belt is divided into same sedimentary slope belt and former sedimentary slope belt in the process of its forming.In addition,based on forming mechanism,same sedimentary slope belt can be divided into structural and sedimentary slope belt,respectively,and while former sedimentary slope belt can be divided into palaeogeomorphology and erosion slope belt.Various slope belts have different mechanisms,as follow,traps formed by structural slope belt and incised valley traps are dominated by oil and gas,and lithologic trap is easily formed in sedimentary slope break belt,which also is main target for exploring.The development of low system zone is controlled by palaeogeomorphology and erosion slope break belts which influences nonstructural trap development in low system zone.
关键词(KeyWords):
层序地层;坡折带;圈闭;深切谷
sequence stratigraphy;slope break belt;trap;incised valley
基金项目(Foundation): 国家重点基础研究发展计划(973计划)项目(2003CB214608);; 国家自然基金项目(40742010)联合资助
作者(Author):
吕大炜,李增学,孙静,吴立荣,郭建斌,刘海燕
LU Da-wei1,LI Zeng-xue1,SUN Jing2,WU Li-rong1,GUO Jian-bin1,LIU Hai-yan1(1.Shandong Technology and Science University
参考文献(References):
- [1]Posamentier HW,Vail P R.Eustatic controls on clastic depositionⅠ:Sequence and system tract[J].SEPM Special Publication,1998:126-148.
- [2]胡受权,郭文平,杨凤根,等.断陷湖盆陡坡带陆相层序地层的“沉积滨线坡折”问题探讨[J].古地理学报,2000,2(4):20-28.
- [3]林畅松,潘元林,肖建新,等.“构造坡折带”——断陷盆地层序分析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):260-266.
- [4]张善文,王英民,李群.应用坡折带理论寻找隐蔽油气藏[J].石油勘探与开发,2003,30(3):5-7.
- [5]王英民,刘豪,李立诚,等.准噶尔大型坳陷湖盆坡折带的类型和分布特征[J].地球科学——中国地质大学学报,2002,27(6):683-688.
- [6]李丕龙,张善文,宋国奇,等.断陷盆地隐蔽油气藏形成机制——以渤海湾盆地济阳坳陷为例[J].石油实验地质,2004,26(1):3-10.
- [7]刘豪,王英民,王媛,等.大型坳陷湖盆坡折带的研究及其意义[J].沉积学报,2004,22(1):95-102.
- [8]冯有良,徐秀生.同沉积构造坡折带对岩性油气藏富集带的控制作用[J].石油勘探与开发,2006,33(1):22-31.
- [9]杨道庆,赵追,贾曙光,等.东庄次凹边缘断层坡折带对油气成藏的作用[J].大庆石油地质与开发,2002,21(3):14-15.
- [10]尹微,樊太亮,许浩,等.下切谷的特征及油气地质意义[J].大庆石油地质与开发,2006,25(2):21-23.
- [11]黄先雄,王林.Fula坳陷Abu Gabra组沉积相及成藏控制因素分析[J].大庆石油地质与开发,2007,26(5):41-43.
- 吕大炜
- 李增学
- 孙静
- 吴立荣
- 郭建斌
- 刘海燕
LU Da-wei1 - LI Zeng-xue1
- SUN Jing2
- WU Li-rong1
- GUO Jian-bin1
- LIU Hai-yan1(1.Shandong Technology and Science University
- 吕大炜
- 李增学
- 孙静
- 吴立荣
- 郭建斌
- 刘海燕
LU Da-wei1 - LI Zeng-xue1
- SUN Jing2
- WU Li-rong1
- GUO Jian-bin1
- LIU Hai-yan1(1.Shandong Technology and Science University