In order to reduce the environmental impact of produced water management a wetland system is being installed in the Sultanate ofOman. The facility will reduce the disposal of hydrocarbon polluted produced water into deep aquifers, recover hydrocarbons bymeans of an additional oil/water separation step and decrease the overall power consumption of the oil field operation by using agravity flow system. During construction measures have been taken to reduce the impact by using only local materials for theinstallation of a sealing layer.The project is currently in the commissioning phase and first result have shown that up to 60 bbl/d of crude oil were recovered, anoverall a reduction of the power consumption between 1.2 and 1.8 Mio MWh can possibly achieved in the 20 years of operationand due to the installation of a mineral sealing layer the impact during construction could be reduced by 80 % for this elementcompared to the installation of an artificial sealing.
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