东濮凹陷火成岩屏蔽作用研究及采集方案

Shielding effect of igneous rock and resolving programof data acquisition
in Dongpu Depression

杨会朋 崔 鸣 张松平 冯丽华 朱俊华 孙 森 张文洁

中原油田分公司勘探开发科学研究院，河南 濮阳 457001 中原石油勘探局地球物理勘探公司，河南 濮阳 457001 中原石油勘探局对外经济贸易总公司，河南 濮阳 457001

Research Institute of Exploration and Development, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, China Geophysical Exploration Company, ZPEB, SINOPEC, Puyang 457001, China ZPEB International, SINOPEC, Puyang 457001, China

地震照明分析是认识和研究地震数据采集时能量在地下地质结构中分布的有效手段。通过对先验目标地质模型进行有效的地震照明度分析，可清楚地识别地震波的能量分布特征，用以指导观测系统设计及提高成像质量。地震照明分析方法很多，文中采用波动方程有限差分正演法，对东濮凹陷进行了模拟，获得了采集系统的改进措施。

Seismic lighting analysis is an effective measure of recognizing and studying energy distribution in subsurface geologic framework with the seismic data acquisition. The energy distribution features of seismic wave can be clearly identified through the effective analysis of seismic illuminance for transcendental target geologic model, which can be used for guiding the layout and improving the imaging quality. There are many methods of seismic lighting analysis. Modelling with finite difference of wave equation is conducted in Dongpu area and measures for improvement of acquisition system has been obtained.