Thermal-dispersion: An ignored heat transfer phenomena in Thermal EOR (by either injection of steam/hot-water or ISC)?
1. Relatively homogeneous ‘combustion tubes’ remain the primary reason behind considering only conduction and convection as the modes of heat transfer, while ignoring the thermal-dispersion at the laboratory-scale?
2. To what extent, in a real field scenario, the physical process of thermal dispersion will influence the resulting oil displacement - from the coupled effect of (a) viscosity reduction by heat; & (b) viscosity reduction by the dissolution of locally generated CO2in oil?
3. Whether thermal dispersion (in a real field scenario) would try to “significantly” mitigate the enhancing relative permeability – resulting from the thermal expansion of oil?
4. Whether the distillation and thermal-cracking of oil (in a real field scenario) would remain the same - upon the inclusion of thermal-dispersion?
5. Whether the solution gas drive from produced gases (which enables the flow of heavy-oil towards the production well) – be over-rated – in the absence of considering thermal-dispersion (in a real field scenario)?
6. Whether the pressure-gradient imposed by the injected-air and the locally generated gases – be over-rated - in the absence of considering thermal-dispersion (in a real field scenario)?
7. Whether introducing the concept of “thermal dispersivity” associated with thermal EOR studies would try to redefine the spatial and temporal distribution of the resulting reservoir temperature to a significant extent?
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