有井多道反演

Multitrace broadband constrained inversion

1. 清华大学工程力学系,北京 100084;2. 石油地球物理勘探局研究院,涿州 072750;3. 新星石油公司勘探研究院,荆州 434100

Department of Engineering Mechanics.Tsinghua University, Beijing 100084

在无井多道区演方法的基础上, 结合已知井的资料建立初始模型和提取子波, 将多道反演的思路应用于宽带约束反演, 提出了多道宽带约束反演的方法。该方法在实际资料上的应用是有效的, 反演结果保持了宽带高分辨率的特点, 多道宽带约束反演的残差剖面也明显优于单道宽带约束反演的残差剖面。

The method of multitrace broadband constrained inverson is prond, in which the non-well multitrace inversion is used conbining with the known well data to construct initial mode1 and ex-tract wavelet. The inversion method preserves the feature of broad band and high raselution, and theresidual error section obtained by the method is obviously superior to that obtained by single-trace broad -band constrained inversion.