独山子背斜构造演化序列及其对油气成藏的控制
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摘要
独山子背斜位于准噶尔南缘四棵树凹陷,背斜北翼陡南翼缓,北翼近于直立,造成背斜北翼地震剖面呈现空白区。通过二维地震反射剖面和钻井资料精细构造解析,结合正演以及运动学数值模拟技术,提出独山子背斜构造模型:独山子背斜发育上、下两套滑脱层,下部滑脱层发育断层转折褶皱,上部滑脱层发育三角剪切型断层传播褶皱,构成一个叠加背斜构造。独山子背斜中上组合构造发育喜马拉雅运动期3期构造演化序列,即早期(N2d沉积时期)转折褶皱、中期(Q1沉积时期)传播褶皱及晚期(Q4沉积时期)冲断改造。喜马拉雅运动期3期构造演化序列控制了独山子背斜中上组合油气运聚与油气藏展布特征。
The Dushanzi anticline is located at the Sikeshu Sag of Junggar basin. Due to North Wing of the anticline is steep,South Wing of the anticline is slow,North Wing of the anticline is nearly vertical,which bring about the blank area in the North Wing. A quantitative structure modeling method is put forword,which consists with comprehensive information( seismic,drilling and outcrop data) and two crucial techniques( the seismic modeling and kinematics simulation). Structure model was established by using this method. Dushanzi anticline developed upper and lower sets of slip layer,Dushanzi anticline is a fault bend fold in the Bottom,Dushanzi anticline is a trishearfault propagation fold in the top,which Constitute a superimposed anticlines. This paper established the three tectonic evolution sequence of Dushanzi anticline,that early( N2 d deposition ago) bend fold,medium( Q1period)propagation folds and late( Q4period) thrust transformation. This three tectonic evolution sequence of Dushanzi anticline have some control and transformation effect in the upper combination of hydrocarbon accumulation.
The Dushanzi anticline is located at the Sikeshu Sag of Junggar basin. Due to North Wing of the anticline is steep,South Wing of the anticline is slow,North Wing of the anticline is nearly vertical,which bring about the blank area in the North Wing. A quantitative structure modeling method is put forword,which consists with comprehensive information( seismic,drilling and outcrop data) and two crucial techniques( the seismic modeling and kinematics simulation). Structure model was established by using this method. Dushanzi anticline developed upper and lower sets of slip layer,Dushanzi anticline is a fault bend fold in the Bottom,Dushanzi anticline is a trishearfault propagation fold in the top,which Constitute a superimposed anticlines. This paper established the three tectonic evolution sequence of Dushanzi anticline,that early( N2 d deposition ago) bend fold,medium( Q1period)propagation folds and late( Q4period) thrust transformation. This three tectonic evolution sequence of Dushanzi anticline have some control and transformation effect in the upper combination of hydrocarbon accumulation.
引文
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12 邵雨.准噶尔盆地南缘深层下组合侏罗系油气成藏研究.高校地质学报,2013;19(1):86—94Shao Yu.Hydrocarbon accumulation of the jurassic deeply-buried lower assemblage in the Southern Junggar Basin.Geological Journal of China Universities,2013;19(1):86—94
2 Suppe J,Chou G T,Hook S C.Rates of folding and faulting determined from growth strata.Mc Klay K R.Thrust Tectonics.London:Chapman Hall Publisher,1992:105—121
3 Shaw J,Suppe J.Active faulting and growth folding in the eastern Santa Barba Channel,California.G S A Bulletin,1994;106:607 —626
4 Sun J M,Zhu R X,Bowler J.Timing of the Tianshan Mountains uplift constrained by magnetostratigraphic analysis of molasse deposits.Earth and Planetary Science Letters,2004;219:239—253
5 孙继敏,朱日祥.天山北麓晚新生代沉积及其新构造与古环境指示意义.第四纪研究,2006;26(01):14—19Sun Jimin,Zhu Rixiang.Cenozoic deposits in the northern TIANSHAN Mountains and its implications for neotectonics and environmental changes.Quaternary Sciences,2006;26(01):14—19
6 郭召杰,方世虎,张锐,等.生长地层及其在判断天山北缘前陆冲断褶皱带形成时间上的应用.石油与天然气地质,2006;27(4):475—481Guo Zhaojie,Fang Shihu,Zhang Rui,et al.Growth strata and their application in timing deformation of foreland thrust-fold belts in the north margin of Tianshan.Oil&Gas Geology,2006;27(4):475 —481
7 管树巍,李本亮,何登发,等.复杂构造解析中的几何学方法与应用.地质科学,2007;42(2):722—739Guan Shuwei,Li Benliang,He Dengfa,et al.Geometrical methods of complicated structural analysis and their application.Scientia Geologica Sinica,2007;42(2):722—739
8 陈书平,漆家福,于福生,等.准噶尔盆地南缘构造变形特征及其主控因素.地质学报,2007;81(2):151—157Chen Shuping,Qi Jiafu,Yu Fusheng,et al.Deformation characteristics in the southern margin of the Junggar Basin and their controlling factors.Acta Geologica Sinica,2007;81(2):151—157
9 况军,贾希玉.喜马拉雅运动与准噶尔盆地南缘油气成藏.新疆石油地质,2005;26(2):129—133Kuang Jun,Jia Xiyu.Relationshi P between Himalayan Movement and Hydrocarbon Aecumulation in Southern Margin of Junggar Basin.Xinjiang Petroleum Geology,2005;26(2):129—133
10 李学义,王兵,陈扬,等.准噶尔盆地南缘山前断褶带断裂模式和控油作用.新疆石油地质,2006;27(3):285—287Li Xueyi,Wang Bing,Chen Yang,et al.The fracture patterns and oil-controlled process in Piedmont Bruchfalten Zone,Southern Margin of Junggar Basin.Xinjiang Petroleum Geology,2006;27(3):285 —287
11 雷德文,唐勇,常秋生,等.准噶尔盆地南缘深部优质储集层及有利勘探领域.新疆石油地质,2008;29(4):435—438Lei Dewen,Tang Yong,Chang Qiusheng,et al.The deep and relatively high-quality clastic reservoir bodies and favorable exploration areas in Southern Margin of Junggar Basin.Xinjiang Petroleum Geology,2008;29(4):435—438
12 邵雨.准噶尔盆地南缘深层下组合侏罗系油气成藏研究.高校地质学报,2013;19(1):86—94Shao Yu.Hydrocarbon accumulation of the jurassic deeply-buried lower assemblage in the Southern Junggar Basin.Geological Journal of China Universities,2013;19(1):86—94
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