东濮凹陷火成岩屏蔽作用研究及采集方案
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摘要
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.
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.
引文
[1]伊尔马滋.地震资料分析[M].刘怀山,曹孟起,张进,等,译.北京:石油工业出版社,2006.
[2]刘洋,李承楚,牟永光.任意偶数阶精度有限差分法数值模拟[J].石油地球物理勘探,1998,33(1):1-10.
[3]陈生昌,马在田,吴如山.波动方程双程地下方向照明分析[J].同济大学学报,2007,35(5):681-684,704.
[4]李万万.基于波动方程正演的地震观测系统设计[J].石油地球物理勘探,2008,43(2):131-141.
[5]孙伟家,符力耘,碗学检.基于相位编码的地震照明度分析[J].石油地球物理勘探,2007,42(5):539-543.
[2]刘洋,李承楚,牟永光.任意偶数阶精度有限差分法数值模拟[J].石油地球物理勘探,1998,33(1):1-10.
[3]陈生昌,马在田,吴如山.波动方程双程地下方向照明分析[J].同济大学学报,2007,35(5):681-684,704.
[4]李万万.基于波动方程正演的地震观测系统设计[J].石油地球物理勘探,2008,43(2):131-141.
[5]孙伟家,符力耘,碗学检.基于相位编码的地震照明度分析[J].石油地球物理勘探,2007,42(5):539-543.
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