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A NEW METHODICAL APPROACH TO ESTIMATING THE CHARACTERISTICS OF PALEOCHANNEL BODIES FROM THE RESULTS OF ATTRIBUTE ANALYSIS UNDER DIFFERENT GEOLOGICAL CONDITIONS

E. K. Kupriyanova 1, R. Sh. Sayfutdinov 2, S. V. Moiseev 3, I. N. Kerusov 3, P. A. Alekseeva 1, L. F. Vorobyeva 3

1 M. V. Lomonosov Moscow State University, Moscow, Russia; 2 Lukoil Oil Company, Moscow, Russia; 3 Lukoil-Engineering, Moscow, Russia

The paper presents the results of studying the characteristics of paleochannel targets using seismic (3D) and well data based on the use of dynamic attributes. The paper demonstrates methodological approaches to the application of seismic attributes in the pay interval. As a result, the applicability of various attributes for the selection of paleochannels was analyzed. Effective thicknesses of the central channel, identified by attributes, were determined based on the spectral decomposition of the peak frequency. The results obtained are consistent with those obtained using well data based on geostatistical analysis. The methodological approach presented in the paper can be used in various oil and gas regions.

Keywords: 3D seismics, attribute analysis, paleochannel characteristics.

DOI 10.20403/2078-0575-2020-3-23-29