1. Mechanical Engineering Department, Petroleum-Gas University of Ploiești, 100680 Ploiesti, Romania
2. Automation, Computers and Electronics Department, Petroleum-Gas University of Ploiești, 100680 Ploiesti, Romania
3. Chemistry Department, Petroleum-Gas University of Ploiești, 100680 Ploiesti, Romania
4. Petroleum Geology and Reservoir Engineering Department, Petroleum-Gas University of Ploiești, 100680 Ploiesti, Romania