With design capacity of 2.7 million standard cu m/day, the plant is to start production by October 2016.
The turnkey contract covers delivery of the plant, including gas separation and LPG extraction units. It also covers automation, communications, and power components.
ABB will work with Thermo Design Engineering Ltd., Edmonton, Alta., on execution of the contract, total value of which is $291 million.
The OMV unit is developing Nawara field in a 50-50 venture with ETAP, the state-owned oil company.
The project includes field processing facilities, a 370-km pipeline, and the gas plant in the Ghannouch industrial district near Gabes.
Production is to peak at 10,000 boe/d in 2016.