“…Therefore, the operating variables which play a key role in the optimization of oilgas production process are selected as decision variables as follows. X = {S, n, T w , H} (1) where S = [S 1 , S 2 , ..., S J ] T and n = [n 1 , n 2 , ..., n J ] T represent stroke and stroke times vectors, respectively. S j and n j are the stroke and the stroke times of the jth rod-pumped well, respectively.…”