Heat capacity and thermal diffusivity of heavy oil saturated rock materials at high temperatures

well-known the rate of heat extraction depends on the thermal conductivity, Q = - λ( T )grad T , and the fluids flow characteristics, while amounts of heat recovery depends on heat capacity of reservoir rocks, Q = ( 1 - ϕ)ρ C_P T , where ϕ is the porosity. In the present work the laser-flash (LFA 457) and differential scanning calorimeter (DSC 204 F1) techniques were employed on a heavy oil saturated natural rock sample for accurate measurements of the thermal diffusivity and heat capacity over a temperature range from (294 to 1024) K and from (306 to 771) K, respectively. The density of the sample at room temperature was 2300 kg m −3 and the porosity was 17.1