MODEL BASED MULTIPLE WAVES SUPPRESSION BASED ON MODELING ALGORITHMS IN THE CONTEXT OF THE HIGH-VELOCITY SECTION OF THE SIBERIAN PLATFORM

(Tverdokhlebov D.N. Danko E.A. Kashirina E.G. Korobkin V.S. Filichev A.V. Gaiduk A.V. )

Multiple waves are still one of the most actual problem in the offshore or onshore seismic data processing. Most of the special demultiple algorithms were designed for offshore data whereas for land one the standard approaches based on velocity discrimination are usually used. Such approaches have significant limitations on efficiency, especially in the context of a high-velocity contrast section. As a result, non-suppressed multiple waves impact significantly on interpretation in negative way, distorting both the seismic image and the dynamic characteristics, and the structural plan. In the search for a solution to this problem, the authors tested most of the modern algorithms for suppressing multiple waves, while specific marine processing procedures (for example, SRME) were adapted to land conditions. Testing was performed on synthetic 2D and real 2D and 3D data. The obtained results make it possible to draw conclusions about the practical applicability of algorithms for production purposes.......

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  • 2018  № 1, pp. 2-14

THE ROAD AHEAD FOR DETERMINISTIC SEISMIC AMPLITUDE INVERSION

(Ryzhkov V.I. Li Qiang )

In this paper, results of development of all main components of deterministic seismic amplitude inversion are considered. This is a new algorithm for seismic wavelet estimation, an analysis of applicability of various stabilizing functionals and development of an algorithm of automatic selection of the regularization parameter. The testing of developed algorithms using synthetic and real data has been carried out. Results were compared to the most applicable industrial software.......

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  • 2018  № 1, pp. 15-23

RESISTIVITY IMAGE OF BARYATINSKAYA CRUSTAL HIGH-CONDUCTIVE ANOMALY BASED ON THE RESULTS OF AREAL MT-SURVEY

(Kulikov V.A. Yakovlev A.G. Pushkarev P.Yu. Aleksanova E.D. Lozovsky I.N. Shustov N.L. Lubnina N.V. Varentsov Iv.M. Zaytsev S.A. Ionicheva A.P. )

This paper presents the results of interpretation of MT data acquired on north-west slope of Voronezh crystalline core-area in 2007-2014. It was a part of the international project, which main issue was survey of Baryatinskaya and Kurskaya crustal high-conductive anomalies. Scientists from Lomonosov Moscow State University, Center of Geoelectromagnetic Researches of The Schmidt Institute of Physics of the Earth of the RAS, Subbotin Institute of Geophysics of the NAS of Ukraine and Nord-West Ltd. took part in this project. 3D inversion of MT data was carried out using ModEM software and supercomputer «Lomonosov» (Research Computing Center of Lomonosov Moscow State University). Resistivity image obtained from 3D inversion shows the boundaries of the Baryatinskaya and Kurskaya crustal high-conductive anomalies, their deep resistivity structure and their connection with well-known high-conductive areas of Ukrainian craton.......

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  • 2018  № 1, pp. 31-43

THE RESULTS OF INTEGRATIVE ANALYSIS OF GEOPHYSICAL DATA CONCERNING STRUCTURE PECULIARITIES OF BASHKIR PRODUCTIVE STRATA OF ASTRAKHAN ARCH

(Pykhalov V.V. Smilevets N.P. Alekseyev A.G. Mishchenko I.A. )

Recognition and mapping of focal fracturing zones and colmated objects via seismic data within the boundaries of Astrakhan Arch poses a complicated challenge. Integrative interpretation of seismic, electromagnetic and gravity data enables to form a coordinated model for productive reservoir and to determine the localities of anomalous distribution of reservoir-beds.......

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  • 2018  № 1, pp. 44-51
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