research centers


Search results: Found 2

Listing 1 - 2 of 2
Sort by

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

Authors: Kamal. K. Ali --- Laith. R. Khaleefah
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2018 Volume: 59 Issue: 4B Pages: 2080-2088
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
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.


Article
Application of the Surface- consistent DE convolution on a seismic data of Al-Najaf and Al-Muthanna Governorates in the south of Iraq

Authors: Kamal K. Ali --- Laith R. Khaleefah
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2018 Volume: 59 Issue: 4C Pages: 2257-2266
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

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〖km〗^2, 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 surface- consistent 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.

Listing 1 - 2 of 2
Sort by
Narrow your search

Resource type

article (2)


Language

English (1)


Year
From To Submit

2018 (2)