基于非线性函数的速度谱智能拾取  

Intelligent picking of velocity spectrum based on nonlinear function

作　　者：张建彬[1] 林年添[1] 张栋[1] 赵传伟[1] 杨修超 

机构地区：[1]山东省沉积成矿作用与沉积矿产重点实验室,山东科技大学地球科学与工程学院,青岛266510

出　　处：《地球物理学进展》2016年第2期856-860,共5页Progress in Geophysics

基　　金：国家自然科学基金项目(41174098;41374126);国家科技发展计划863项目(2012AA061202)联合资助

摘　　要：随着地震勘探的不断发展以及勘探领域的不断扩大,需要处理的勘探资料也不断增加,对速度分析中速度谱的拾取效率和精度提出了更高的要求.一直以来,速度谱中叠加速度的拾取,受限于人眼对速度谱能量团聚焦中心的识别能力,从而使得拾取速度精确度不高.基于非线性函数的智能拾取是通过确定的目标函数,运用非线性函数作为合理约束条件来实现的.此方法针对速度谱的能量团分布规律自动设置约束参数.应用效果表明该方法不仅能实现速度谱智能拾取,而且拾取的叠加速度在精度上逼近真实的叠加速度.With the continuous development of seismic exploration technology and the expanding in the field of exploration, the workload of exploration data processing is also increasing and therefore a higher requirement of the efficiency and accuracy for the picking of velocity spectrum is presented. Due to the limitation of the ability of eyes to focus on the energy group of velocity spectrum,the picking accuracy of stacking velocity in velocity spectrum is not high enough for a long time. The intelligent picking that based on nonlinear function is achieved by using a determined objective function and taking the nonlinear function as a reasonable constraint conditions. The method can be able to set the constraint parameters by observing the energy distribution of velocity spectrum. The application results show that the method can realize the intelligent picking of velocity spectrum,and the picking accuracy of stacking velocity is approximate to the real.

关 键 词：速度谱 智能拾取 非线性函数 叠加速度 

分 类 号：P631[天文地球—地质矿产勘探]