Geoinformatika 2016; 3(59) : 14-19  (in Ukrainian)

Paleo-Channels Prediction in Carboniferous Sediments of the South-East Part of the Dnieper-Donets Basin (Based on the Results of Siesmic-Facies Analysis)

N.I. Nesina, G.G. Markova

LLC “Vikoil LTD”, 7 Kudryavsky uzviz Str., of. 920, Kyiv 04053, Ukraine, e-mail: natalia_nesina@bigmir.net, galina.markova@ubseismic.com

The purpose of the paper is to show the efficacy of seismic-facies analysis for more specific application of 3D seismic to predict lithological hydrocarbon traps. The analysis was carried out in the South-East part of the Dnieper-Donets Basin for the sediments of Carboneferous on the sides of an anticline fold formed during a salt dome structure growing.
Design/methodology/approach. Predictions were carried out using Neural Network Technology (NNT) seismic traces classification to obtain seismic facies distribution.
Findings. The prediction areas of paleo-channels location were identified in the intervals of the Middle and Upper Carboniferous sediments based on the results of seismic-facies analysis. The results of the seismic-facies maps analysis, vertical sections and horizon slices of the seismic cube with amplitude anomalies corresponding to paleo-channels, allowed us to suppose that these paleo-channels were formed under different conditions of sedimentation. These conditions were connected with global sea level variations and with local tectonic movements caused by salt-dome structure forming.
Practical value/implications. Paleo-channels, as the lithological bodies, are quite promising for potential non-anticline hydrocarbon traps forming. The latter has been constantly confirmed by Ukrainian and foreign geologists.

Keywords: seismic-facies analysis, paleo-channel, horizon slice, Dnieper-Donets Basin, Pennsylvanian.

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