Optimization Study on Oil-Gas Gathering and Transporting System Layout

On the basis of system analysis, multilevel optimization strategy can be used to divide the optimization of oil-gas gathering and transporting system layout into two sub-questions, topology and parameters optimization, which can be connected by position of middle stations. And this is a new method to solve the sys tern layout optimization. Some examples show that the method given in this paper is feasible, and can be used in engineering design.