潍北拉分盆地形成演化及其对成油气条件的控制
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摘要
潍北盆地是发育于郯庐断裂带内的中、新生代盆地。在大量地震资料解释与构造成图的基础上,通过构造解析和沉积分析等基础工作.证实潍北盆地是一个典型的走滑伸展盆地,盆地演化经历了走滑挤压阶段(白垩纪末)、走滑伸展阶段(孔店组沉积期)、坳陷与走滑挤压阶段(新近纪)等3个阶段。构造样式包括花状构造、伸展构造以及走滑挤压产生的压扭性断鼻等。控盆断裂的右行走滑导致了孔店组一段、二段砂体向南迁移。潍北盆地发育良好的生储盖组合以及多类型圈闭,具有良好的勘探前景。图7参6
Weibei Basin is a Mesozoic-Cenozoic basin developed in the Tanlu fault zone. Based on interpretation of large amount of seismic data and structure mapping, the basin is proved to be a typical slip-extensional basin according to structure and sedimentation analysis. The basin experienced 3 stages of evolution, slip-compressing movement in the end of Cretaceous, slip-extensional movement during the deposition of Kongdian Formation and depression and slip-compressing movement in Neogene. Structure styles include flower structure, extensional structure and fault nose caused by slip-compression. Favorable source-reservoir-caprock association and multi-type traps were developed in Weibei Basin and that should be a favorable area for petroleum play.
Weibei Basin is a Mesozoic-Cenozoic basin developed in the Tanlu fault zone. Based on interpretation of large amount of seismic data and structure mapping, the basin is proved to be a typical slip-extensional basin according to structure and sedimentation analysis. The basin experienced 3 stages of evolution, slip-compressing movement in the end of Cretaceous, slip-extensional movement during the deposition of Kongdian Formation and depression and slip-compressing movement in Neogene. Structure styles include flower structure, extensional structure and fault nose caused by slip-compression. Favorable source-reservoir-caprock association and multi-type traps were developed in Weibei Basin and that should be a favorable area for petroleum play.
引文
[1]李晓清,汪泽成,程有义,等,潍北凹陷油气富集规律与有利勘探目 标研究[R].东营:胜利油田东胜公司,2000.
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[3]刘和甫,李晓清,刘立群,等.走滑构造体系盆山耦合与区带分析 [J].现代地质,2004,18(2):139-150.
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[6]王小凤,李中坚,陈柏林,等郯庐断裂带[M].北京:地质出版社, 2000.
[2]胜利油田石油地质志编写组.中国石油地质志,卷六.胜利油田 [M].北京:石油工业出版社,1993.
[3]刘和甫,李晓清,刘立群,等.走滑构造体系盆山耦合与区带分析 [J].现代地质,2004,18(2):139-150.
[4]郭振一.郯城一庐江断裂带的形成演化与应力场分析[A].国际地 质力学研讨会论文集[C],北京:地质出版社,1986.
[5]李晓清,汪泽成,程有义,等.拉分盆地分析与含油气性-以潍北盆 地为例[M].东营:石油大学出版社,2003.
[6]王小凤,李中坚,陈柏林,等郯庐断裂带[M].北京:地质出版社, 2000.
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