Heriot-Watt Mathematics Report Series
HWM99-7, 10 Mar 1999
A mechanistic model of gas-condensate flow in pores
M Jamiolahmady, A Danesh, D H Tehrani and D B Duncan
Abstract
Recent experimental results reported in the literature indicate that the
relative permeability of gas-condensate systems increases with rate
(velocity) at some conditions. To gain a better understanding of the
nature of the flow and the prevailing mechanisms resulting in such
behaviour, flow visualisation experiments have been performed, using high
pressure micromodels. The observed flow behaviour at the pore level
has been employed to develop a mechanistic model describing the coupled flow
of gas and condensate phases.
The results of the model simulating the observed simultaneous flow of gas and
condensate pases have been compared with reported core experimental results.
Most features of the reported rate effect are predictable by the
developed single pore model, necertheless, its extension to include
multiple pore interation is recommended.
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