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With the help of average velocity field,variant velocity depth mapping can reach high accuracy.

将均方根速度转换为平均速度并空间网格化形成平均速度场,再利用VSP、声波测井等数据对初始速度场进行校正得到高精度的速度场。

Sonic logging has been seldom applied in average velocity field, owing to some limits of data collection and defection of sonic logging.

在平均速度场研究中很少利用声波测井资料 ,这是因为声波测井资料本身的缺陷所致。