Необходимость использования калибровочно-поправочной функции для аппаратуры нейтронного каротажа с зондом ННК-Т

This article presents the results of developing a calibration-correction function (CCF) for neutron logging equipment with the NNK-T probe, designed to determine the porosity coefficient of water-saturated rocks. Special attention is paid to accounting for the influence of sodium chloride concentration in the formation on the measurement accuracy. An analysis of measured and influencing quantities was conducted, the design of standards was justified, and a structural diagram of the measuring system was developed. The CCF was constructed as a second-degree polynomial, and its accuracy was verified. The research results allow for improving the accuracy of determining the porosity coefficient under real well conditions.