Geostatistic method is an effective approach in studying the distribution of spatial variation including regional variation

variation function

kriged estimate.In seismic data processing

static correction

superficial velocity

time difference

dip angle and curved ray may result in errors in interval velocity calculation.The geostatistic method could find the internal space variation regularity of interval velocity

restrain random error and improve signal noise ratio

thus correcting the error of seismic interval velosity.