摘要
地下地质条件比较复杂时,地震反射波成像效果不理想,致使常规反射地震勘探难以奏效。本文基于点散射地震-地质模型,推导出2D散射波时距曲线方程,分析了地震散射波的运动学规律;在此基础上,提出了2D地震散射波成像的方法与技术;结合断层模型和一套实际地震资料处理,讨论了散射波地震成像的特点,并与传统反射波成像结果进行了比较,证明了该方法的有效性。
Seismic reflection imaging result is not satisfactory when the underground geological conditions are much complex,and the conventional reflection seismic exploration would be ineffective.In the paper,one 2D seismic scattering wave imaging method is achieved from the time-distance curve equation of 2D scattering wave based on the seismic-earth model of point scattering,and the seismic scattering wave kinematics law is ana-lyzed.With the processing results of fault model and a set of real seismic data,the characteristics of the seismic scattering wave imaging technique is discussed,and the imaging results of traditional reflection imaging tech-nique are compared to prove the effectiveness of this method.
出处
《桂林理工大学学报》
CAS
北大核心
2014年第4期615-622,共8页
Journal of Guilin University of Technology
基金
国家自然科学基金项目(41374145)
中国石油科技创新基金项目(2014D-5006-0303)
陕西省自然科学基础研究计划项目(2011JQ5006)
陕西省教育厅重点实验室科研计划项目(13JS093)
关键词
地震勘探
反射波
散射波
时距曲线方程
散射波成像
seismic exploration
reflected wave
scattering wave
time-distance curve equation
scattering wave imaging
