A NEW MODEL FOR PRODUCED WATER TREATMENT IN ELEMIR OIL FIELD

Abstract

The oil reservoirs of the southeastern part of the Panonian basin are characterized by considerable
presence of water,i.e.waterdrive. The hydrocarbon reservoirs are mostly in the middle and final
production stages. The water production is especially significant in wells producing with an installed
Electrical Submersible Pump (ESP). As production continues, it is a realistic expectation that the water
cut increases as well.The rapid production of water has affected fluid production in a significant
way.Produced water in the Elemir oilfield is gathered, treated and then injected into the porous layers
through several wells.The current system for the preparation and treatment of produced water in the
Elemir oilfield has functioned with evident technical issues.The main problems are increased volumes
of produced fluids and the deposition of solids (scales) in water treatment system. In thisarticle, a new
model for produced water treatment is presented, including technical, economic and environmental
aspects. A new model fulfils volumetric requirements, improves oil/water separation and suspended
solids removal which lead to better injection performance.