Downhole Heat Exchange

Abstract

In an earlier paper in this conference series Pan et al. outlined a laboratory and full scale experimental investigation of the heat exchanger. In this paper, further experimental work presented against which a computer is tested. It is concluded that the biggest unknown in modelling the downhole heat exchanger the mechanism of establishing the convection cell within the well when the At present a mixing ratio is used which has to be linked to reservoir parameters as permeability. That link has not been defined in detail; however, data presented demonstrating its effect on output. Conclusions are drawn from the analysis and results which lead to a better understanding of the heat transfer and flaw mechanism involved.