The even and odd pairs and model seismic records was simulated under two layers turning by establishing parity dipole in traditional impedance inversion.By decomposing seismic records into even seismic records and odd seismic records,It can improve the ability of identification thin beds.However,one problem is that seismic records exist more than two layers tuning and traditional impedance inversion of based on basic pursuit can't deal with multilayer tuning preferably.The four directions' model seismic records was established to simulate four layers tuning.By decomposing seismic records into four directions of seismic records,it can deal with multilayer tuning preferably and improve the ability of identification thin beds greatly.Inversion result of model and HZ area seismic show that Impedance Inversion of Based on Basic Pursuit Thinking in Multilayer Tuning can improve inversion effect,it can improve the ability of identification thin beds greatly.%传统基追踪阻抗反演方法通过建立奇偶双极子库,模拟两层调谐条件下的奇偶地震记录.将实际地震记录分解到奇偶地震记录中,该方法存在不足之处是:实际地震记录存在大于两层调谐情况,两层调谐拟合难以较好处理多层调谐.本文通过建立四极子库,模拟四层调谐的地震记录.通过在四个地震记录上分解实际地震数据,克服了传统基追踪拟合多层调谐的不足,从而进一步提高反演分辨率.模型和HZ地区的反演结果对比表明拟合四层调谐的基追阻抗反演较传统基追踪阻抗反演效果提升明显.该方法可以较为明显地提高反演的分辨率.
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