The structural kinematical model of gold drazhnoe deposit

(Chitalin A.F. Voskresenskiy K.I. Grishin E.M. Sivkov D.V. Usenko V.V. Fomichev E.V. Chikatueva V.Y. )

Drazhnoe (Yakutia, Oimyakon region) is a orogenic gold deposit with a structural-lithological control of an ore mineralization. By using a structural mapping of the pit, a structural logging of an oriented core, a tomographic and mineralogical data in 2016-2018, the structural kinematical model has been created.......

  • 2018  № 3, pp. 106-114

Smoothing and filtering large time series for hydrodynamic interception wells

(Bakhmutsky M.L. )

The singular-spectrum analysis main specific feature for large nonstationary time series are provided. It is shown that the denoising large time series can be determined by wavelet-packet transformation of such series and use singular-spectrum analysis for wavelet coefficient (algorithm 1). It is shown that specific features for large nonstationary noisy time series can be determined by the wavelet - packet transformation of its large trajectory matrix (algorithm 2). New method for determination eigenvalues and eigenvectors very large symmetric dense matrix are provided. This tool is applied to trajectory matrix large nonstationary time series. It is shown that singular-spectrum analysis shared since wavelet - packet transformation is adequate work tool for hydrodynamic interception wells.......

  • 2018  № 3, pp. 120-127

Tectonic structure and conditions of formation of chernoff swell (preduralsky foredeep) based on the wide-azimuth 3D seismic data

(Khromova I.Yu. Tsybin V.P. )

Conducting modern seismic studies on the basis of a dense wide-azimuth acquisition using full-wave prestack depth migrations made it possible to construct a highly informative image of the Chernov swell, a tectonically complex element of the Polar Urals foreland. The junction zone of two large thrust plates moving towards each other was built by fragments of the plateau complexes of the Kosyu-Rogovskaya and Korotaikhinskaya foredeep. Steep fall of layers, numerous shariage, delaminating edges of plates, antithetic faults -a wide variety of tectonic forms became possible to trace in depth seismic sections. It was possible to confirm, supplement and substantially refine the hypotheses of the predecessors about the structure of the Chernov Swell made on 2D seismic data, and also to restore the geochronological sequence of the formation of the Chernov Swell in comparison with the global geodynamic events of Hercynian tectonogenesis.......

  • 2018  № 3, pp. 128-133

Integration of geological and geophysical studies in the assessment of the prospects of oil and gas potential in the poorly studied territories of the russian federation on the example of the northern frame of the siberian platform

(Afanasenkov A.P. )

A new methodology for geological and geophysical comprehensive regional study of large areas, based on the example of a large scientific project on geological study of the northern frame of the Siberian Platform is presented. The emergence of new geophysical technologies and methods of scientific analysis made it possible to conduct a modern comprehensive interpretation of seismic and electrical prospecting data, potential fields, GIS, stratigraphic, lithofacies, paleogeographic, geochemical and other materials. As the result of the whole working process, new data on the oil and gas ontogenesis was refined, the evaluation of the resource potential for the Mesozoic and Paleozoic complexes was made. Quantitative estimation of hydrocarbon resources is made for each oil and gas bearing area (NGO) and for oil and gas bearing complexes (NGK) within them. In the Gydan and Yenisei-Khatanga NGOs, the Aptian-Cenomanian complex and neocom sediments are characterized by the greatest perspectives and resource potential. In the Anabar-Khatanga NGO, the maximum of the summary resources (NSR) of hydrocarbons correspond to the Upper Permian-Lower Triassic NGK, in the Lena-Anabar maximum, the NSR of the hydrocarbon is related to Perm NGK. Based on the results of geological and geophysical integration, recommendations for further regional seismic exploration work have been developed in the region, new areas for licensing were allocated and a parametric drilling program has been proposed.......

  • 2018  № 3, pp. 134-152