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面向目标的地震照明技术为三维地震采集论证工作提供重要的技术手段,论文通过对比分析三维射线法和波动方程法照明技术的响应特征,来评价复杂工区的地震采集观测系统,研究结果表明:射线法照明过度依赖构造高点,照明能量呈星状分布,受小尺度的构造、模型速度变化等因素影响较大,波动方程法照明刻画了整体能量分布状况,对模型速度变化的容忍度较大,适用性较强.同时这两种算法均具有较高的计算效率和精度,可广泛适用于南海复杂工区的地震采集论证工作.
The target-oriented seismic lighting technology provides important technical means for the demonstration of 3D seismic data collection. The paper evaluates the seismic acquisition observation system of complex work area by comparing and analyzing the response characteristics of three-dimensional ray and wave equation lighting technology. The results show that the radiation The illumination of the law is overly dependent on the height of the structure and the energy of the illumination is in a star-like pattern, which is greatly influenced by the small-scale structure and the variation of the model velocity. The wave equation method illuminates the overall energy distribution and has greater tolerance to the model velocity variation , Applicability is strong.At the same time, these two algorithms have high computational efficiency and accuracy, which can be widely applied to the seismic acquisition demonstration work in the complex area of the South China Sea.