| PS转换波共转换点的几种计算方法及实际应用 |
| |
| 引用本文： | 郭向宇,凌云,魏修成. PS转换波共转换点的几种计算方法及实际应用[J]. 石油物探, 2002, 41(2): 141-143,148 |
| |
| 作者姓名： | 郭向宇 凌云 魏修成 |
| |
| 作者单位： | 1. 中国石油集团地球物理勘探局,河北涿州,072751
2. 石油大学,北京,102200 |
| |
| 摘 要： | 目前常用的共转换点计算公式是在单层均匀介质模型条件下导出的。Thomsen于1999年提出多层介质条件下的共转换点计算公式，其假设前提与实际情况更为接近，对纵横波速度比的定义也更为精细。通过采用上述2种不同计算方法对实际资料进行共转换点分选及叠加处理并对比，基于多层介质模型的算法的叠加效果明显优于单层介质模型的算法。
|
| 关 键 词： | PS转换波 共转换点 计算方法 应用 纵波 横波 纵横波速度比 地震勘探 |
| 文章编号： | 1000-1441(2002)02-0141-03 |
| 收稿时间： | 2001-05-17 |
| 修稿时间： | 2001-07-13 |
Calculation procedures for common conversion points of PS converted waves and their application |
| |
| Guo Xiangyu,Ling Yun,Wei Xiucheng. Calculation procedures for common conversion points of PS converted waves and their application[J]. Geophysical Prospecting For Petroleum, 2002, 41(2): 141-143,148 |
| |
| Authors: | Guo Xiangyu Ling Yun Wei Xiucheng |
| |
| Affiliation: | 1. Petroleum Geophysical Prospecting Bureau of China National Petroleum Company, Zhuozhou 072750,China; |
| |
| Abstract: | The commonly used formula so far for common conversion point (CCP) calculation are derived under assumption of homogeneous medium model with single layer. Thomsen proposed in 1999 a new set of formula for CCP estimation under assumption of multilayerd medium. Due to the multilayered medium is more close to the real situation, Thomsen's definition of velocity ratio between compressional and shear waves is more accurate. We performed CCP sorting and stacking on real data with the above mentioned calculation procedures and compared their results, which reveals that the multilayed calculation procedure is superior to single layered one. |
| |
| Keywords: | converted wave common conversion point compressional wave shear wave compressional and shear wave velocity ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《石油物探》浏览原始摘要信息 |
|
点击此处可从《石油物探》下载全文 |
