Modelling reinjection into vapour-dominated two-phase systems: Part 1-Experiments on model design

The model is based loosely on the Darajat system but the results should be relevant for other similar reservoirs such as Larderello, Kamojang and The Geysers. Model parameters such as vertical permeability, porosity and relative permeability are investigated. Different injection rates and start-times for injection are tried. Various aspects of model design such as grid refinement, use of an embedded radial grid near the wells, dual porosity and nine-point differencing are investigated.