The prediction methods of geological types of Vend-Rifey sequences in the Eastern Siberia

(Kopilevich E.A. Larkin V.N. Afanasyev M.L. Surova N.D. )

The prediction methods of geological types of vend-rifey sequences from the seismic data is developed. The methods is adaptation of universal innovation technology of complex spectral-velocity prediction geological types of sequences and filtration-capacitive properties of sequences (CSVP) for specific geoseismic conditions in south-west of Siberian ancient platform. The using of this methods allow to create allocation plans of oil and gas perspective types of sequences for vend and upper part of rifey sequences. The achieved results afford to subtract potential zones for next seismic prospecting and new well site.......

  • 2012  № 6, pp. 28-34

About determination the area of space, significantly influencing on measurement’s results in electromagnetic methods of geophysics

(Karinskiy A.D. Daev D.S. )

In the paper we gave ground of a new (on our opinion) term «the area of space, significantly influencing on measurement’s results» with reference to some electrical and electromagnetic methods of geophysics. In case of electromagnetic field at appropriate conditions the secondary field of each small object of isometric form, different on electromagnetic parameters from surrounding medium, can be liken to the field of alternating electrical or magnetic dipoles situated and centered in this object. In the case of stationary electrical field or alternatingfield in non-magnetic medium the secondary field of such object can be approximated by that of electric dipole. Some examples of this approach application for resistivity method and crosshole radio-frequency survey are given.......

  • 2012  № 6, pp. 42-53

Electrotomography - in the geophysics

(Balkov E.V. Panin G.L. Manshteyn Yu.A. Manshteyn A.K. Belorodov V.A. )

The paper describes a state of the DC tomography geophysical technique. The analysis of commercial equipment and interpretation software is presented. The features of different array types are studied. By means of mathematical modeling the resolution of array was estimated. The most effective ones are gradient, pole-dipole, dipole-dipole and Schlumberger. To achieve more deep results the use of forward and reverse pole-dipole arrays is recommended. Authors also presents their own equipment SibER 48. Some case studies are considered. Both the modeling and practice demonstrate the effectiveness of the technique.......

  • 2012  № 6, pp. 54-63

Modeling of gravimagnetic fields of primary diamond deposits in areas of Perman-Triassic traps

(Konstantinov K.M. Novopashin A.V. Evstratov A.A. Konstantinov I.K. )

With the subtraction method ofpolygenetic potential fields are calculated gravimagnetic anomalies for three variants of 3D petrophysical models (PPhM) of primary diamond deposits, characteristic of areas of Permian-Triassic traps. Physical properties of rocks were obtained from oriented samples collected from quarries and mines. Define the boundaty geometric and physical parameters of the PPhM, in which anomalies can be released kimberlite pipe-type nature.......

  • 2012  № 6, pp. 64-72