高分辨率层序地层对比在河流相中的应用

APPLICATION OF HIGH RESOLUTION SEQUENCE STRATIGRAPHIC CORRELATION TO FLUVIAL FACIES

邓宏文 王洪亮 李小孟

Wang Hongliang Deng Hongwen Li Xiaomeng

济阳坳陷北部胜海区上第三系馆陶组上段是以冲积-河流相为主的沉积。利用岩芯资料的高分辨率,划分基准面短期旋回,分析相序特征;应用岩芯标定,建立测井资料的基准面旋回响应模型;通过井-震对比,划分基准面中期旋回,并分析各地震相的地质意义。在此基础上,运用基准面旋回原理,建立高分辨率等时地层格架,研究河流层序发育特征与演化过程,预测主要产层段储层的空间分布。

The Upper Guantao Formation of the Tertiary in Shenghai Region,Jiyang Depression is dominated by fluvial flood plain facies. Different scales of sequence cycles could be identified according to the cores,logs and seismic data of the formation.Short term base level cycles could be identified based on rock cores,intermediate term base level cycles could be identified through log seismic data correlation.Then the principle of the base level cycles was used to build high resolution isochronous stratigraphic correlation framwork,study the evolution proporty and the process of fluvial sequences,predict the spatial distribution of oil reservoirs.

10.11743/ogg19970202