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高分辨率非线性三维整体反演方法是基于非线性理论,在层位控制下,将工区多井(或全部井)的测井数据与井旁地震道数据输入具有多输入多输出的网络,同时进行整体训练,可获得整个工区的自适应权函数,并建立综合非线性映射关系,并根据储层在纵横方向上的地质变化特征更新这种非线性映射关系,这样,就能对反演过程及其反演结果起到约束和控制的作用,从而获得稳定且分辨率高的地震反演剖面(速度反演剖面/波阻抗反演剖面/密度反演剖面),实现整体反演,该方法通过模型试算和实际资料处理,获得较好的地质效果,证明该方法精度高、实用性强,可用于储层的定量分析。
The high-resolution nonlinear three-dimensional integral inversion method is based on the nonlinear theory. Under the control of horizon, well logging data and borehole seismic trace data from multi-wells (or all wells) in the work area are input to a network with multiple inputs and multiple outputs, At the same time, the whole training is carried out to obtain the adaptive weight function of the entire work area and to establish a comprehensive nonlinear mapping relationship. Based on the geological change characteristics of the reservoir in vertical and horizontal directions, this nonlinear mapping relationship is updated, so that the inversion Process and its inversion results play a role of constraint and control to obtain a stable and high resolution seismic inversion section (velocity inversion section / wave impedance inversion section / density inversion section), to achieve the overall inversion, the The method achieves good geological effects through model trial calculation and actual data processing, and proves that the method is of high precision and practicality and can be used for quantitative analysis of reservoirs.