ABSTRACT
The suggested integration of available geomechanical data with the results of continuous high-resolution thermal core logging can significantly improve the quality of the geomechanical parameters estimation for the Bazhenov formation and other low-permeable anisotropic high-heterogeneous rocks. It helps in detailing or downscaling some logging data, forecasting a variation of some geophysical parameters in intervals where logging data is absent or cannot be interpreted. Continuous thermal profiling gives a clear picture of reservoir thermal heterogeneity that in combination with logging data helps to justify the number of core samples and their location for the selection of representative samples for traditional geomechanical studies. Variations in thermal properties characterize typically rock heterogeneity well, while an understanding of rock heterogeneity is fundamental for adequate scaling-up data from laboratory measurements to core- and reservoir-scales. Based on the results of thermal profiling with the help of established correlations, it is possible to estimate elastic wave velocities, their anisotropy, and density, calculate dynamic elastic moduli, brittleness index, and obtain information about variation of strength properties within the heterogeneous and anisotropic Bazhenov formation.
