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| 用变换时窗统计能量比法拾取地震初至波 | |
| 引用本文： | 张伟,王海,李洪臣,王彦春,段云卿.用变换时窗统计能量比法拾取地震初至波[J].物探与化探,2009,33(2):178-180. |
| 作者姓名： | 张伟 王海 李洪臣 王彦春 段云卿 |
| 作者单位： | 1. 中国地质大学,地下信息探测技术与仪器教育部重点实验室,北京,100083 2. 中国石油,青海油田公司勘探开发研究院,甘肃,敦煌,736202 3. 辽河油田特种油开发公司,辽宁,盘锦,124010 |
| 基金项目： | 国家高技术研究发展计划(863计划)重大项目 |
| 摘 要： | 基于地震道时窗属性特征，对地震波初至拾取能量比法进行系统的研究，比较了固定、滑动和变换时窗能量比法的原理及应用效果。研究表明，固定和滑动时窗能量比法的处理效果较差，在拾取过程中对某些特殊点的处理上存在误差较大；而采用变换时窗长度统计法后，初至曲线的同向轴变的更加光滑，拾取异常点的情况大为减少，从而有效的提高拾取的精度。 |
| 关 键 词： | 能量比 拾取 地震初至波 变换时窗 |
THE APPLICATION OF STATISTIC ENERGY RATIO OF TRANSFORM TIME WINDOWS TO THE PICKUP OF SEISMIC FIRST ARRIVAL WAVE |
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| ZHANG Wei,WANG Hai,LI Hong-chen,WANG Yan-chun,DUAN Yun-qin.THE APPLICATION OF STATISTIC ENERGY RATIO OF TRANSFORM TIME WINDOWS TO THE PICKUP OF SEISMIC FIRST ARRIVAL WAVE[J].Geophysical and Geochemical Exploration,2009,33(2):178-180. | |
| Authors: | ZHANG Wei WANG Hai LI Hong-chen WANG Yan-chun DUAN Yun-qin |
| Institution: | Key Laboratory of Underground Information Detection Technique and Instrument of Ministry of Education, China University of Geosciences; Beijing 100083, China |
| Abstract: | Based on seismic attributes of the time window, the authors studied the methods of first arrival wave pickup by using energy ratio. A comparison was made in theory and application effects of statistical energy ratios between such means as solid, rolling and changing time windows. The results show that the effects of solid and rolling time windows are relatively poor, with considerable errors existent in the process of picking some special points. When the transform length of the time window statistical method is employed, the event of the first arrival curve becomes more smooth, and the abnormal points are greatly reduced, thus effectively improving the pickup accuracy. |
| Keywords: | energy ratio pickup seismic first arrival wave transform time-window |
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