DEVELOPMENT A NEW METHOD OF SEISMIC ATTRIBUTES AND WELL DATA COMPARISON FOR QUANTITATIVE PREDICTION OF RESERVOIR (TANYPSKOE OILFIELD)

(Zaklyuchnov I.S. Putilov I.S. Seletkov I.A. )

The article is devoted to the development and of new method of seismic and well data comparison for quantitative prediction of reservoir effective thicknesses using machine-learning algorithms. We found out the influence of a different step of calculating attributes on the predictive ability of mathematical models for quantitative prediction. As a result of this study a program was written and integrated into a geological modelling package.......

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  • 2020  № 5, pp. 13-19

STUDY OF FRACTURED RESERVOIRS FROM SEISMIC EXPLORATION TO HYDRODYNAMIC MODEL

(Ladeyshchikov S.V. Seletkov I.A. Fadeev A.P. Yuzhakov A.L. )

Rock fracturing study methods based on 3D seismic survey, in particular, duplex wave migration, are presented. An example of using the results of rock fracturing study in geological and hydrodynamic modeling of deposits taking into account double porosity is also presented.......

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  • 2020  № 5, pp. 20-25

IDENTIFICATION OF NATURAL AND TECHNOGENIC DECREASED ZONES IN THE PRODUCED ARRAY IDENTIFICATION OF NATURAL AND TECHNOGENIC DECREASED ZONES IN THE PRODUCED ARRAY FROM DATA OF HIGH-PRECISION GRAVIMETRIC OBSERVATIONS

(Bychkov S.G. Simanov A.A. Khokhlova V.V. )

The results of studying the changes in the state of rocks in one of the sections of the Verkhnekamsk potassium salt deposit according to gravimetric data are presented. Negative local anomalies outline the natural zones of decompression, gravimetric monitoring records the process of continuing decompression of rocks. A joint interpretation of local gravity anomalies and dynamic anomalies allows us to build reliable three-dimensional models of the water-proof stratum, which includes a change in density over time, thereby determining the genesis of decompression zones and classifying the anomalies according to their degree of danger for mining operations, as well as predicting subsidence Earth's surface over the undermined massif of rocks.......

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  • 2020  № 5, pp. 26-30

IMPROVEMENT OF ANALYTICAL APPROXIMATION FOR MAGNETIC SURVEY DATA

(Kostitsyn V.I. Dolgal A.S. Novikova P.N. Voroshilov V.A. )

Experimental studies, aimed at improving the transformation accuracy of magnetic exploration data by the method of analytical approximation with source-shaped functions, which are fields of elementary sources, were carried out. Determined that differences in the magnetization vectors directions of anomalous objects and elementary sources approximating them do not have a noticeable effect on resulting transforms. Significant distortions of magnetic field transforms, concerned with edge parts of the initial data setting area, which occur when using single-level approximation structures, are fixed. These distortions can be suppressed by placing equivalent sources at different depths, while matching these depths with the pitch of the initial data presentation network. The results of spatially combined two-level analytical approximation of aeromagnetic survey data performed in the north-west of the Siberian platform are given.......

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  • 2020  № 5, pp. 31-38

COMPLEX ELECTRICAL MONITORING OF SALT KARST PROCESSES

(Kolesnikov V.P. Laskina T.A. )

Predictive dynamic geoelectrical model of sinkholes development has been formed on the base of physical-geological information and analysis of electrical monitoring surveys for investigation of karst processes dynamic in the context of a salt deposit. The main goal of the research is to develop approach and technology of electrical surveys to predict the stages of the sinkhole development processes.......

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  • 2020  № 5, pp. 39-49
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