东营凹陷北带深层砂砾岩体的地震预测方法

东营凹陷北带盐下砂砾岩体具有良好的成藏条件，但由于深层地震资料的分辨率低，盐下砂砾岩体勘探具有较大的风险。因此，基于现有资料，对盐下砂砾岩体的地震预测技术进行了探索。首先进行了成藏控制因素和成藏模式分析，将扇体分为近岸水下扇和深水浊积扇两大类；〖JP+1〗然后针对不同类型的扇体，分别讨论了相应的地震预测方法。对于近岸水下扇，采用岩石物理分析、正演模拟、地层切片和叠前弹性阻抗反演等方法进行储层预测和流体识别；对于深水浊积扇，利用地震属性分析、测井约束反演和吸收特征分析等方法，进行储层预测和含气性分析。预测结果与钻井结果的对比表明，上述地震预测方法可以有效识别储层的含气性，划分有利勘探区。

Seismic prediction method for deep glutinite bodies in the northern zone of Dongying Depression

The sub-salt glutinite bodies in the northern zone of Dongying Depression provide favorable pooling potential.However,because of the low resolution of seismic data from deep layers,the exploration of sub-salt glutinite bodies still has risky.Therefore,based on the existing data,we probed seismic prediction technique of sub-salt glutinite bodies.Firstly,the pooling controlling factors and pooling patterns were analyzed,and the fans were classified into nearshore subaqueous fan and deep-water turbidite fan.Then,seismic prediction methods discussed for different types of fans.For nearshore subaqueous fan,petrophysical analysis,forward modeling,strata slice and pre-stack elastic impedance inversion can be used for reservoir prediction and fluid identification;for deep-water turbidite fan,seismic attributes analysis,logging constraint inversion and absorption characteristics analysis can be adopted for reservoir prediction and gas-bearing analysis.The comparison between prediction results and drilling results show that the above seismic prediction method can effectively recognize the gas-bearing of reservoirs and identify favorable exploration area.