一、前言随着直接找油、气方法——“亮点”技术的发展,应用模型来帮助进行“亮点”解释,以达到确定油、气藏的目的,已经成为“亮点”技术的重要组成部分。这种模型方法不仅能帮助解释人员对油、气藏特性作定性解释,甚至在某些有利的条件下,还能对油、气储量作定量估算。因此,探索直接找油、气的模型技术,无论在地震理论上或生产实践上,都具有重要意义。“亮点”模型技术的关键问题,是建立适当的物理数学模型,使能在任意复杂地层构造的条件下,精确计算由于岩性参数的变化而引起的反射波动力学特征(特别是振 I. INTRODUCTION With the direct search for oil and gas, the development of “bright spot” technology, the application of models to help explain the “bright spots” in order to achieve the purpose of determining oil and gas reservoirs has become an important part of the “bright spot” technology . This model approach not only helps interpretors interpret qualitatively the properties of oil and gas reservoirs, but also provides quantitative estimates of oil and gas reserves even under certain favorable conditions. Therefore, it is of great significance to explore the model technology of finding oil and gas directly, both in seismic theory and production practice. The key issue of the “bright spot” model technique is to establish an appropriate physical mathematical model that enables accurate calculation of the reflected wave dynamics due to changes in lithology parameters (especially the vibration