The development of Russian oil and gas complex is associated with maintaining the required level of oil and gas production. The main challenge of Russian oil and gas industry today are related to entry into the late stage of development of most of the large fields, when the main reserves have already been recovered, and residual reserves are difficult to recover. The other problem is exhaustion of the fund of large and medium-sized local uplifts in areas of greatest interest in terms of oil and gas content, and the reproduction of the mineral resource base is possible only with the discovery of new hydrocarbon deposits concentrated in unconventional geological objects and complexes. Russian oil and gas companies of the Federation solve the following main tasks: increasing the oil recovery factor at developed fields; bringing new deposits into development; search for promising lithological oil and gas traps, including in unconventional objects. An equally important task is to identify missed objects in previously discovered fields. The main reason for the “missing” deposits may be: the complex mineralogical composition of reservoirs, facies variability of deposits, when deposits are represented by thin lenses; “distortion” of the readings of logging methods due to deep zones of penetration of the flushing fluid; limited well logging complex. In case of hard-to-recover reserves and complex reservoirs the use of special well logging methods is justified. One of the most promising areas is nuclear physical methods, including nuclear magnetic logging and pulsed neutron gamma spectrometric logging (INGS). These methods allow to estimate with high accuracy the elemental composition of rocks and the main petrophysical parameters in both open and cased holes. Effective use of logging data involves their analysis in combination with core data. Increasing the informative value and reliability of laboratory core studies is an important task facing the Rosneft Oil Company. The authors considered the development of core study technologies in support of the interpretation of special well logging methods using the example of the Tyumen Petroleum Research Center.
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