MINETECHNICAL APPLICATIONS OF SEISMIC IN SHALLOW WELLS

(Sanfirov I.A. Babkin A.I. Bobrov V.Y. Chugaev A.V. Lisin V.P. )

The article is dedicated applications of borehole seismic methods intended for increasing spatial resolution of sesmic control while monitoring sites with potential risks of waterproof layer disturbance within the range of active pit mine fields. The most informative for velocity parameters estimation are straight and revers vertical seismic profiling, and seismic tomography. Considered number of examples obtained in different minetecnical situations......

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  • 2018  № 5, pp. 24-30

FORECAST FACIES OF TERRIGENOUS DEPOSITS BASED ON HIGHLY INFORMED SEISMIC 3D AND MACHINE LEARNING

(Laptev A.P. Ladeyshchikov S.V. Putilov I.S. Piatunina E.V. )

The article demonstrates a practical example of the joint application of new technologies for 3D seismic exploration and machine learning, for the integrated forecasting of facies of continental deposits. The proposed approaches allow us to automate the process of obtaining predictive solutions, increase productivity, minimize the subjective factor. The multivariance of the solutions makes it possible to quantify the uncertainty of the forecasts.......

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  • 2018  № 5, pp. 31-37

WIDE-AZIMUTH PROCESSING OF 3D SEISMIC DATA FOR THE AZIMUTHAL ANALYSIS AMPLITUDES

(Neganov V.M. Laptev A.P. Dushkin A.B. Glotov A.A. )

The issues of 5D regularization of migration and further azimuth analysis of amplitudes for wide-azimuth 3D seismic data are actualized. Theoretical bases of the described procedures and methods are presented, perspectives of this approach are considered, which were reflected in the practical example of one of the areas of the Volga-Ural oil and gas province.......

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  • 2018  № 5, pp. 38-49

MODELING OF GRAVITATIONAL EFFECT CAUSED BY THE INFLUENCE OF THE EARTH SPHERICITY

(Bychkov S.G. Simanov A.A. Kostitsyn V.I. Dolgal A.S. Khokhlova V.V. )

An estimate of the differences in gravity anomalies caused by the use of flat and spherical Earth models during the interpretation materials of gravimetric survey for a 660 km long profile was carried out using model examples. The authors characterized the geometry distortions of the geo-density section, which arise with different approaches to the transformation of the source coordinates and field calculation points. As a lower estimate of the influence of the earth's surface curvature, it is proposed to use the difference between the radial and vertical derivatives of the gravitational potential. The use of basic ideas about the spherical Earth increases the reliability of the results of quantitative interpretation of gravimetric materials and avoids the errors associated with the transition from geographical coordinates to rectangular ones when studying large areas.......

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  • 2018  № 5, pp. 50-56

ASSESSMENT OF INFLUENCE OF ACCURACY OF DETERMINATION OF RELATIVE PERMEABILITY ON THE PREDICTED INDICATORS OF DEVELOPMENT OF OIL DEPOSITS

(Nekrasov A.S. Ustinova Yu.V. )

The results of estimation of reliability of determination of predicted water content in calculations through relative phase permeability (OFP), obtained by Burdain formulas, direct method in laboratory conditions and through OFP, adapted to the development model in the construction of hydrodynamic model are presented.......

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  • 2018  № 5, pp. 57-62
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