Abstract

The paper is devoted to the problem and results of applying up-to-date nuclear spectrometry logs including C/O log for high-viscosity oil pool studies. Information about applied measurement technologies, tools, new comprehensive interpretation techniques has been given. Practical examples of the effectiveness of the nuclear logs in formation water salinity evaluation and localization of water flooded zones in oil recovery by thermal methods have been shown. Techniques for reliable forecasting of the characteristics of the inflows obtained in reservoir tests have been developed.

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