Issues of the journals Геофизика 2017 y. issue 1

Some technological methods used for layer-based velocity-depth model building

(Anisimov R.G. Davletkhanov R.T. )

Nowadays there are a plenty of methods of velocity-depth model building. However, just a few algorithms are used in practice. In the paper we will show some technological methods of velocity-depth model building, which are more or less universal from the point of view that they may be used in a wide variety of seismic-geological conditions. Their limitation consists in their orientation to layered model, but the extension of a set of layered models lets us consider this limitation has no influence on practical problems solving.......

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  • 2017  № 1, pp. 2-7

PETROPHYSICAL MODEL OF THE OSINSKY HORIZON AND THE FORECAST CARBONATE RESERVOIRS IN THE NEPSKY ARCH

(Baryshev L.A. Vashenko V.A. )

The article considers the petrophysical model of the osinsky carbonate horizon, based on geophysical well logging data in the territory of the Nepsky arch. On the basis of petrophysical model is given physical basis and the criteria of selection of promising seismic anomalies associated with oil and gas deposits in the osinsky horizon. Built map seismic of amplitude anomalies and highlighted promising areas of collectors in the osinsky horizon.......

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  • 2017  № 1, pp. 8-15

ELEMENTS OF THE INFORMATION EXPERTISE RESULTS OF THE GEOLOGICAL MODELING IN PETROLEUM GEOLOGY

(Kobrunov A.I. Dorogobed A.N. Kozhevnikova P.V. )

Information Expertise geological modeling results in Petroleum Geology is to verify the reliability of the components of the geological model constructed on the basis of their compliance with existing geological-geophysical data. On the basis of fuzzy modeling principles developed by the unit of information analysis and presentation in the form of ranked reliability of data used to build the cube of physical and geological models. The concept of fuzzy petrophysical model involved in the construction field reliability of constructions based on the method of fuzzy inference conversion of the measured parameters in the forward-looking. A unit of analysis of reliability field cross sections for the expertized model.......

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  • 2017  № 1, pp. 16-21

ALGORITHM OF NUMERIC DIRECT GRAVITY CALCULATION OF SPHERICAL LAYER WITH VARIABLE DENSITY

(Lygin I.V. Bulychev A.A. Kuznetsov K.M. )

In this article, effective algorithm of spherical layer with variable density effect calculation based on fast discrete convolution is approached. Some peculiarities of its computer implementation are considered. Examples of gravity potential and field calculations of different density distributions in a spherical layer of the Earth are in the article.......

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  • 2017  № 1, pp. 22-27

BURSTS OF NON-TIDAL VARIATIONS OF GRAVITY

(Antonov Yu.V. )

The analysis of changes of structure and intensity of non-tidal variations of gravity. Bursts of variations distinguished by the fact that changes in gravity have the same sign, and the ripple of alternating. Preliminary analysis shows that bursts of non-tidal variations associated with the solar wind (a stream of particles: protons, electrons, etc.). Duration bursts of non-tidal variations in contrast to the pulsation does not exceed a few hours, but may continue sporadically for Ripple variations can be associated with meteor streams and major typhoons two to three weeks.......

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  • 2017  № 1, pp. 28-34
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