大庆石油地质与开发

2007, No.121(03) 43-46

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坳陷湖盆缓坡层序地层及沉积体系研究——以准噶尔盆地陆西地区为例
Study on sequence stratigraphy and depositional system in gentle slope of sag lake basin——Taking Luxi area in Junggar Basin as an example

岳云雷,于兴河,李胜利,黄兴文,王斌
YUE Yun-lei1,YU Xing-he1,LI Sheng-li1,HUANG Xing-wen2,WANG Bin3(1.Energy School of China University of Geosciences

摘要(Abstract):

由于坳陷缓坡型湖盆层序地层的研究尚不成熟和完善,因此应用层序地层学原理和方法,在充分应用岩心、测井、录井、地震等资料的基础上识别出4个III级层序,并建立层序地层对比格架,在等时层序地层格架内开展沉积体系研究。在对各方面资料分析研究的基础上总结出坳陷缓坡型湖盆的层序充填特征,最终利用层序地层学体系域的理论预测出K—SQ1上升半旋回、J—SQ3上升半旋回及J—SQ5上升半旋回沉积地层为有利层段;基东鼻凸、石西凸起及3个泉凸起是岩性地层油气藏发育的有利部位。
Study on lake basin sequence strata with the type of sag gentle slope is not mature and perfect,so based on cores,well logging and seismic data,by applying sequence stratigraphic theory and method,four III grades strata are determined and strata comparative framework is set up,and meanwhile depositional system study is developed in isochronal sequence strata framework.On the basis of various data analysis and study,packing characteristics for lake basin with the type of sag gentle slope are summarized.At last,based on the theory of sequence stratigraphy,K-SQ1 uplift hemicycle,J-SQ3 uplift hemicycle and J-SQ5 uplift hemicycle depositional formations are favorable intervals.Jidong nose,Shixi bugle and 3 fountain bugles are advantageous parts for lithostratigraphy reservoir developing.

关键词(KeyWords): 坳陷湖盆;缓坡型;岩性地层圈闭;层序地层学;沉积体系
depression Lake Basin;gentle slope type;lithostratigraphy trap;sequence stratigraphy;depositional system

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作者(Author): 岳云雷,于兴河,李胜利,黄兴文,王斌
YUE Yun-lei1,YU Xing-he1,LI Sheng-li1,HUANG Xing-wen2,WANG Bin3(1.Energy School of China University of Geosciences

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