The integrated approach to investigations of the Usinskoye heavy oil field (Timano-Pechora province, Russia) was applied. A continuous high-resolution profiling of rock thermal properties (thermal conductivity, volumetric heat capacity, thermal anisotropy coefficient) on all cores (more than 3 000 samples) recovered from two wells was combined with (1) the thermal property measurements on standard core plugs (1x1“, more than 300 samples) in four core plug states successively (as-received state, dry, brine- and oil-saturated samples), and (2) processing the thermal property data jointly with the standard petrophysical logging data. The optical scanning technique was used for all thermal measurements on full sized cores and core plugs. The results of high-resolution thermal profiling allowed detailing the porosity variations up to scale of 5 mm. Variations of rock mineralogical composition were defined more accurately from inverse problem solution. Possibilities to determine detailed vertical variations in elastic wave velocities and rock density were established and used for estimation of rock geomechanical parameters and their detailed variations along the wells. The data inferred from thermal core logging and thermal measurements on core plugs provided detailed variations in the thermal properties of rock matrix along the wells. The data are necessary for basin and petroleum system modeling, study of formation geological structure, modeling heat and mass transfer processes in reservoirs at thermal methods of enhanced oil recovery, development of technologies for heavy oil recovery, geomechanical modeling, interpretation of temperature monitoring data during the reservoir heating and heavy oil production.