Thermal Diffusivity, Heat Capacity, and Thermal Conductivity of Oil Reservoir Rock at High Temperatures

The contact-free, laser-flash (LFA 457) apparatus was used to measure the thermal diffusivity ( a ) of oil reservoir rock samples over the temperature range from (303 to 723) K at atmospheric pressure. The measurements of the heat capacity ( C_P ) of the same oil reservoir rock sample were performed over a temperature range from (305 to 771) K using DSC 204 F1 technique. The combined expanded uncertainties of the temperature ( T ), thermal diffusivity ( a ) and heat capacity ( C_P ) measurements at the 95