Application of the surface-consistent DE convolution on a seismic data of Al-Najaf and Al-Muthanna governorates in the south of Iraq

الملخص EN

This study deals with the application of surface-consistent deconvolution to the two-dimensional seismic data applied to the Block 11 area within the administrative boundaries of Najaf and Muthanna Governorates with an area of 4822 , the processed seismic data of line (7Gn 21) is 54 km long.

The study was conducted within the Processing Department of the Oil Exploration Company.

The gap surfaceconsistent deconvolution was applied using best results of the parameters applied were: The length of the operator 240, the gap operator 24, the white noise 0.01%, the seismic sections of this type showed improvement with the decay of the existing complications and thus give a good continuity of the reflectors at the expense of resolution.Then, spiking surface- consistent deconvolution was applied using the best implementation parameters chosen during the test: operator length 240, gap operator 4, and added white noise 0.01%.

This type gave a better estimate of reflectivity in seismic sections with good resolution and loss of continuity compared to gap surface- consistent deconvolution.

The application of surface-consistent deconvolution to seismic data showed a significant improvement in data quality by reducing random noise, eliminating variability in emissions due to near-surface irregularities, and improving the estimation of statistics.