This study studies the effect of flow and thermal transfer properties of
fluids with varying densities, viscosities, and thermal conductivities on
the performance of oil shale in-situ conversion process based on
multi-physics coupling simulation. Results indicate that thermal convection
primarily governs the heat transfer pro?cess in oil shale. Consequently, to
enhance the pyrolytic effects, fluids possessing high density, low viscosity
and superior thermal conductivity are recommended. This research thus
provides a foundational understanding for the selection of fluid properties
in the in-situ extraction of oil shale.