Application of the Predictive deconvolution on a seismic line Al-Najaf and Al-Muthanna Governorates in Southern Iraq

Abstract

This study deals with the processing  of field seismic data for a seismic line located within the administrative boundaries of Najaf and Muthanna governorates in southern Iraq (7Gn 21) with a length of 54 km. The study was conducted within the Processing Department of the Oil Exploration Company using the Omega  system, which contains a large number of programs that deal with processing, through the use of these programs applied  predictive deconvolution  of both( gap) and (spike). The final section was produced for both types. The gap predictive deconvolution  gave improvement in the shallow reflectors while in deep reflectors it did not give a good improvement, thus giving a good continuity of the reflectors at the expense of resolution, whereas spike  predictive deconvolution  caused an increase in frequency noise in seismic sections, giving a good resolution at the expense of continuity.