RELATIONSHIPS BETWEEN PARAMETERS OF GEOPHYSICAL FIELDS USED FOR INTERPRETATION IN REGIONAL OIL AND GAS WORKS

(Genik I.V. )

The analysis of data from regional gravity and seismic surveys in the Perm Territory and the Kirov Region, aimed at clarifying the geological structure of the territories and the discovery of oil and gas prospective structures, is performed. The relationships between the characteristics of geophysical fields used for interpretation are investigated. Relationships between the parameters of seismic structural surfaces and the geological and geophysical data used in the interpretation (relief, magnetic and gravitational fields and their transforms) are established. The possibilities of predicting the results of geophysical work based on the available geological and geophysical information are shown.......

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  • 2020  № 5, pp. 50-55

FEATURES OF CONSTRUCTING A VELOCITY MODEL FOR DEPTH MIGRATION IN CONDITIONS OF KARST PHENOMENA

(Laptev A.P. Belozerova N.S. Klestov I.M. )

The article describes the problems arising in the construction of a velocity model for the depth migration of seismic data associated with the local velocity heterogeneity of the section. On the area with velocity anomalies related to karst processes, the method of their localization and accounting in velocity model by scanning velocities was reprocessed and tested.......

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  • 2020  № 5, pp. 64-68

ANALYSIS OF GEOPHYSICAL SURVEYS PERFORMED OUT BY COMPLEX PULSE-NEUTRON LOGGING EQUIPMENT IN THE FIELDS OF THE PERM REGION

(Shumilov A.V. Salnikova O.L. Chukhlov A.S. Alexandrovskaya A.A. )

The article presents the experience of using the SGC and INNL-S methods, which expand the capabilities of the standard logging data and increase its efficiency, refine the lithological model of the studied objects and evaluate the nature of saturation in fresh water flooding.......

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  • 2020  № 5, pp. 69-78

EARTH CRUST STUDIES USING GEOPHYSICAL METHODS

(Tarantin M.V. Kostitsyn V.I. Prostolupov G.V. Chadaev M.S. Gershanok V.A. )

Earth's crust of the Fennoscandian Shield and the northeastern part of the East European platform (Russian and Pechora plates) was subject to the detailed study. Presented results are obtained in the Vector system, and include depth gravity maps and sections, as well as the Moho map of Tibet. Examples of forecasting the structural inhomogeneities of the lower crust are based on the elevation changes of the Moho boundary. Extended positive anomalies reflect location of the gold-bearing provinces of the Fennoscandian Shield.......

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  • 2020  № 5, pp. 79-83
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