SUMMARYThe paper presents various approaches to the interpretation of the data of 3D TEM for the predicting of reservoir properties and saturation of clastic horizons with using data of the wellbore testing, petrophysical functions and well logging. Presents opportunities to increase the efficiency of the productive reservoir prediction based on data integration 3D TEM and 3D seismic data.
Transient electromagnetic soundingmethod (TEM) is a part of the surface geophysical methods' combination for the south of Siberian platform sedimentary cover studies and oil-and-gas exploration tasks' performance. The region's geological cross-section is beneficial in terms of its studying with the use of electromagnetic sounding as the cumulative conductivity does not exceed 30-50 S, and the horizons that build it up show contrasting geoelectrical properties (Mandelbaum, 1983, Pospeyev, Buddo, Agafonov 2010).
The work represents the evolution of approaches to TEM data interpretation as case study of one of the typical fields Nepsko-Botuobinskaya zone, defines the ways and possibilities of increasing the electromagnetic research resolution, shows approaches of TEM data analysis base on integrated interpretation with CDP data.
Based on the acquired experience, uncertainty analysis, verification of predictions, the authors concluded that the key capabilities and limitations of the TEM due to both geological factors and physics TEM method. It also considers opportunities of resolving the associated tasks of tectonic dislocations', salinity zones' and basement noses' studies.
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