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地震超声模拟试验多数是在均匀介质中,以简单的几何模型进行实验.用于碳酸盐岩地区,研究多层介质中三维地震的运动学正演问题则要求模拟非均匀介质中复杂模型的地震超声技术.其中一项重要的基础工作是研究非均匀介质的复杂模型成形技术,它包括二个内容:一是根据相似性准则选择制作模型的材料;二是复杂模型的成形加工.一、地质摸型进行模型试验的典型碳酸岩构造地质模型(苏北黄桥地区)大体分为三个构造层,各构造层之间的界面自上而下用A、B、C表示.超声物理模型试验只模拟A、B两个构造层位的地震记录.图1给出了这两个层位的构造图,它们的速度和密度参数分别由下表表示(见表1):二、材料选择
Most of the seismic simulations are carried out in a homogeneous medium with a simple geometric model. The kinematic forward modeling problem for the study of 3D seismic in multi-layered media in carbonate rocks requires modeling of complex models in inhomogeneous media Seismic ultrasonic technology.One of the most important basic work is to study the heterogeneous medium complex model forming technology, which includes two contents: one is based on the similarity criteria to choose the model material; the other is the complex model forming processing.First, The typical carbonate structural tectonic model (Huangqiao area, northern Jiangsu province) for model test of geology model is generally divided into three tectonic layers, and the interfaces between the tectonic layers are denoted as A, B and C from top to bottom.The ultrasonic physical model The experiment only simulates the seismograms of the two structural layers A and B. Figure 1 shows the structure of these two layers, their velocity and density parameters are shown in the following table (see Table 1): II. Material Selection