SEISMIC REFLECTION DATA PROCESSING Application of Band Pass Filter

Abstract

Unprocessed seismic reflection data, along with computer software is acquired and to enhance the signal to noise ratio, zero phase frequency filtering is applied. The Band Pass filtering is applied to the data to remove the high frequency components of seismic data that are creating distortion. The filtered seismic version shows that the high frequency components are removed but some distortion due to Gibbs effect is produced. The effect of the different band pass filters with different bandwidth shows that the filtered seismic version with narrow band causes high frequency bearing reflectors in upper part are completely filtered out but improves the reflection in the lower part. The band pass with wide band effect on the overall reflection strength but shape distortion is decreased.