大庆长垣以东地区扶杨油层层序地层格架

THE CORRELATION FRAMEWORK OF FU-YANG OIL LAYERS IN THE EAST OF DAQING PLACANTICLINE

应用Exxon层序地层学三分性理论体系,追踪盆地范围内可对比的标志层,将松辽盆地晚中生代地层划分为三级层序。在三级层序地层格架内,运用Cross陆相高分辨率层序地层原理,依据中、短和超短期基准面变化,将扶杨油层细分为3个中期基准面旋回、8个短期基准面旋回和39个超短期基准面旋回。并按点、线、面的对比流程,编制出10条骨架对比剖面和166条辅助地层对比剖面,建立了大庆长垣以东地区统一的层序对比格架。新建立的层序地层对比格架,层序级次清晰、可操作性强,为该地区未动用储量全面投入开发奠定了地质基础。

By the triarylated theory system of Exxon sequence stratigraphy,and being tracked the mar-ker bed in the area of basin,which can be contrasted,the Late Mesozoic stratum of the Songliao Basin could be divided into three class sequence.Applying the principle of Cross continental high resolution sequence stratigraphy and according to the alteration of medium-term,short-term and ultrashort-term datum level,the Fu-Yang oil layer can be divided into 3 medium-term datum cycles,8 short-term datum cycles and 39 ultrashort-term datum cycles.And according to the contrast procedure of spot,line and surface,10 main contrast frameworks and 166 accessorial contrast frameworks have been established,and meanwhile a new uniform sequence correlation framework about the east of Daqing placanticline has been established.The established new uniform sequence correlation framework has more definition and high maneuverability.This new sequence correlation framework has laid the geological foundation for nonproducing reserves in the region.