地震正演模型在周矶油田潜41油组储层预测中的应用

Apply of Seismic Forward Modeling in Qian41 Formation of Zhouji Oilfield for Reservoir Prediction

本文通过对周矶油田潜41油组进行储层分析,使用有限差分法进行楔状模型正演,研究区地质模型正演结果证实了振幅属性、频率属性与砂岩之间的敏感关系.利用井点和地质模型的约束,根据振幅特征对地震剖面进行追踪,然后通过地震属性分析等步骤,减少了储层预测的多解性.

This article analyzes reservoirs of Zhouji oilfield qian41 oil group and makes finite difference method get on wedge simulation forward. In the study area, the sensitivity relation between amplitude attribute and frequency attribute is confirmed by result of geological model forward and analysis of wave impedance differ- ence of different rock types . Using the well and geological model to track constraintsthe amplitude of seismic stratigraphic group, make amplitude plan. And then through seismic attribute analysis and other steps, the reservoir distribution is predicted accurately and the multiple solutions of reservoir prediction are reduced.