The reservoir was produced under primary production for the first 6 months
using 24 production wells producing at 5000 and a minimum bottom-hole
pressure constraint of 200 bars. After 6 months of primary
production, 17 injection wells were added
injecting water at 5000
with a
maximum bottom-hole pressure constraint of
400 bars. The total simulation time was 3 years.
Only vertical wells were included in the simulation.
Example fluid distributions at 3 years for a
vertical cross-section and a horizontal slice are shown in
Figures and
.
Water injection has clearly reduced the size of the gas cap
(Figure
), and water injection is seen to be influenced by gravity,
as shown by the cone-like pattern around the injection wells (Figure
a).