霸县凹陷鄚州地区沙河街组层序地层学研究

古近系沙河街组是华北油田鄚州地区勘探主要目的层之一。长期以来,由于该地区的地层划分未能归一细化,因此极大制约了鄚州地区进一步的勘探工作。充分利用地震、测井、钻井及古生物等资料,结合各级层序界面的识别标志,将地震、测井、钻井和古生物等界面划分统一,建立起地震和地质统一的层序对比关系,并初步分析了地层的发育、分布特征及控制因素,为鄚州地区沙河街组的进一步深化勘探奠定了基础。

Research on sequence stratigraphy of the Shahejie formation in Maozhou area,Baxian depression

The Paleogene Shahejie formation is one of the major exploration targets in Maozhou area,Huabei oilfield.Stratigraphic division has not been normalized,thereby greatly hindered in-depth exploration in this area.Seismic,logging,drilling and palaeontologic data are fully used in combination with identification of various sequence boundaries to construct a consistent stratigraphic correlation between seismics and geology.This research also preliminarily analyzes formation development,distribution and control factors,offering basis for further in-depth exploration in the Shahejie formation of Maozhou area.