Ehsan Khamehchi received his Ph.D. from Amirkabir University of Technology (AUT) in Chemical Engineering with emphasis on Petroleum Production Optimization in 2009. He received his M.Sc. degree in Reservoir Engineering and his B.Sc. degree in Exploration Engineering from AUT in 2005 and 2003, respectively. He has been working as an Associate Professor in the Faculty of Petroleum Engineering at AUT since 2010 and his expertise includes Artificial Lift Optimization (ALO), Production Engineering (PE) and Artificial Intelligence (AI). He is a member of the Society of Petroleum Engineering (SPE) and the European Association of Geoscientists and Engineers (EAGE).Mohammad Reza Mahdiani is now a PhD candidate in Amirkabir University of Technology in Iran in Petroleum Engineering. He received his M.Sc. and B.Sc. degrees in reservoir engineering in Amirkabir University of Technology (2013) and Petroleum University of Technology (2011). His expertise includes production optimization and has written some papers and books in this area. He is also a member of the Society of Petroleum Engineering (SPE).

• 1. Introduction.- 2. The Fitness Function of Gas Allocation Optimization.- 3. Constraint Optimization.- 4. Optimization Algorithms.