【摘要】 塔河油田奥陶系油藏储集空间以碳酸盐岩岩溶孔洞缝为主,古岩溶发育程度对奥陶系油气成藏有重要的控制作用。古岩溶发育受多种因素影响,其中古地貌形态是控制古岩溶发育及分布的主要因素之一。因此研究古岩溶分布规律,应先进行古地貌恢复。本文以塔河油田4区奥陶系油藏为例,总结了一套应用三维地震资料及钻井资料进行古地貌恢复的方法和技术,并恢复、描述了塔河4区奥陶系在石炭系沉积前的古地貌形态及特征。更多还原

【Abstract】 Cave and cleft in karst limestone are the main oil-bearing space of Ordovician oil poor in Tahe oil field,the develop level of ancient karst controlled the formation oil pool in Ordovician reservoir.Ancient karst development is affected by multiple factors,the ancient landscape is one of the major factors to control development and distribution of the ancient karst.The study of ancient karst distribution laws should be carried out to restore the ancient landscape.Ordovician oil reservoir in No.4 tract of Tahe oil field,For example,we have summarized methods and techniques to restore the ancient landscape which use three-dimensional seismic data and drilling information,and described the ancient landscape features of the Ordovician before sediment of the Carboniferous in No.4 tract of Tahe oil field.更多还原