四川盆地米仓山东端—大巴山西段前缘构造建模及地震资料构造解释
|
摘要
以断层相关褶皱理论、构造几何学、构造运动学为指导,在分析构造样式、滑脱层系的基础上,结合地表、钻井资料建立了构造模型,进行构造精细解释,分析了构造的三维展布特征。认为:工区受力环境符合推土机模型,为递进挤压渐弱模式,构造以逆冲推覆为主;剖面上,中、下三叠统地层增厚现象是断层导致地层重复引起的,特别是三叠系嘉陵江组膏岩层是区域滑脱层,深部断层、浅部断层及其内部断层都使其地层重复增厚;以嘉四段、志留系为界,构造在纵向上可以分为上、中、下三层。
Guided by the theory of fault-related fold,tectonic geometry along with tectonic kinematics,the tectonic models are established from surface and drilling data,the fine tectonic interpretation is implemented and the tectonic 3D distribution is analyzed based on the analysis of tectonic style and decollement layers.It is considered that the forcing condition in studied area is suitable for a bulldozer model,which belongs to progressive-squeezing weaken patterns.And structures in the area are dominated by overthrust.Repetitive formations caused by fault lead to upper,middle and lower stratum thickening.Especially gypsolyte layers in Triassic Jialingjiang Formation are regional decollement zone,which are thicken by deep,shallow and interior faults.Longtitudinally,the structure is classified into upper,middle and lower layers bound by Jilingjiang Formation reservoir.
Guided by the theory of fault-related fold,tectonic geometry along with tectonic kinematics,the tectonic models are established from surface and drilling data,the fine tectonic interpretation is implemented and the tectonic 3D distribution is analyzed based on the analysis of tectonic style and decollement layers.It is considered that the forcing condition in studied area is suitable for a bulldozer model,which belongs to progressive-squeezing weaken patterns.And structures in the area are dominated by overthrust.Repetitive formations caused by fault lead to upper,middle and lower stratum thickening.Especially gypsolyte layers in Triassic Jialingjiang Formation are regional decollement zone,which are thicken by deep,shallow and interior faults.Longtitudinally,the structure is classified into upper,middle and lower layers bound by Jilingjiang Formation reservoir.
引文
1涂涛.米仓山—大巴山前陆盆地含油气条件评价研究.中油西南油气田公司勘探开发研究院科研报告,2004
2曾庆.四川盆地东北部地区构造演化与含油气有利区带评价研究.中油西南油气田公司勘探开发研究院科研报告,2002
3四川石油管理局地质调查处.四川盆地米仓山东端-大巴山西段前缘地震普查总结报告.四川石油管理局科研报告,2002
4陈伟.平衡剖面计算机模拟及其应用.北京:科学出版社,1993
5贾承造.前陆冲断带油气勘探.北京:石油工业出版社,2000
6何登发.前陆盆地分析.北京:石油工业出版社,1996
7周新源.前陆盆地油气分布规律.北京:石油工业出版社,2002
8 Tw iss,Robert J.andMoores,E ldridgeM.StructuralGeolo-gy.W.H.Freem an and Company,1992
9 An issue focused on the study of Triangle zones and tecton icwedges.Bu lletin of Canad ian Petroleum Geology,1996,44(2)
10 M itra S.Fold-accommodation fau lt.sAAPG,2002,86:671~693
11 Suppe J.Geom etry and k inem atics of fau lt-bend fold ing.Am erican Journal of Sc ience,1983,283:684~721
2曾庆.四川盆地东北部地区构造演化与含油气有利区带评价研究.中油西南油气田公司勘探开发研究院科研报告,2002
3四川石油管理局地质调查处.四川盆地米仓山东端-大巴山西段前缘地震普查总结报告.四川石油管理局科研报告,2002
4陈伟.平衡剖面计算机模拟及其应用.北京:科学出版社,1993
5贾承造.前陆冲断带油气勘探.北京:石油工业出版社,2000
6何登发.前陆盆地分析.北京:石油工业出版社,1996
7周新源.前陆盆地油气分布规律.北京:石油工业出版社,2002
8 Tw iss,Robert J.andMoores,E ldridgeM.StructuralGeolo-gy.W.H.Freem an and Company,1992
9 An issue focused on the study of Triangle zones and tecton icwedges.Bu lletin of Canad ian Petroleum Geology,1996,44(2)
10 M itra S.Fold-accommodation fau lt.sAAPG,2002,86:671~693
11 Suppe J.Geom etry and k inem atics of fau lt-bend fold ing.Am erican Journal of Sc ience,1983,283:684~721
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