STATICS OF CONVERTED WAVE

Laterally-nonuniform weathered layer and very low velocity of shear waves cause high statics and severe lateral variation of converted P-SV wavesGenerally,such high static can not be removed through conventional P-wave refraction static methods The technique described in this paper shows that receiver statics can be removed by modeling correlation and curve smoothing method The procedures include:(1) determining the total receiver statics using the value derived from the correlation of optimized common receiving point stack traces; (2)evaluating the value of structural dip using curve smoothing;(3)getting receiver statics by subtracting static values of structural dip from total static valuesThis method can be applied to removal of high static of converted P-SV waves.