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 。
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.
出处
《石油物探》
EI
CSCD
2002年第2期141-143,148,共4页
Geophysical Prospecting For Petroleum
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
converted wave
common conversion point
compressional wave
shear wave
compressional and shear wave velocity ratio
