粘弹性井间地震数值模拟及效果分析

Viscoelastic crosswell seismic data numerical simulation and the effect analysis

针对垦71区块砂泥岩互层、小断层及微幅构造等地质特征,设计了相应的地质模型,利用粘弹性波动方程数值模拟方法进行井间地震波场模拟。模拟数据的上行反射波成像剖面与地质模型吻合较好。表明井间地震处理成果可靠性较高,可为多尺度资料联合反演等研究提供高分辨率优质资料。

To counter the geology characteristic of the thin sand--mud alternate layers, the smart faults and the small range structures in Ken 71 area, we designed the corresponding geology model and simulated the crosswell seismic wavefield by the viscoelastic wave equation digital modeling method. The images of the up--going waves of the simulated data fitted with the geology better. It shows that the crosswell seismic processing result is reliable, and can provide high resolution data in high quality for multi --scale data combining inversion.