Investigation of Steam Flooding in Naturally Fractured Reservoirs

Some of the main aspects of steam injection in naturally<br>fractured reservoirs are reviewed and discussed in this paper.<br>The thermo-chemical alteration (cracking, dehydrogenation<br>and condensation) of reservoir crude oil and rock are reviewed.<br>After that the effects of temperature on physical properties of<br>crude oils and rocks are reviewed. The temperature of injected<br>fluids can be as high as 350°C, therefore the physical properties<br>such as viscosity, interfacial tension, wettability, capillary<br>pressure, permeability and etc. may be greatly affected.