| Aiming at the factors of current coalbed methane (CBM) industry such as high investment, low efficiency, gathering and transferring system pressure is low and sensitivity, in this paper a pressurization system optimization scheme has been developed. Using hierarchical optimization method will be the problem is divided into: well group of optimal division, booster position, the optimization of pressurization time optimization three stages. Among them, the booster position and charging time optimization is the core content of this paper.The optimal division in well group use the generalized assignment problem solving method, in view of the network layout under unknown sure booster location of the problem, this paper adopted the DFP algorithm is presented to solve the objective function. Considering the time value of money and system in the whole period of input and output, according to the net present value method to establish the charging time of solving the optimization model, and through the penalty function method for solving.According to the above ideas, Prepared the objective function of the solver though MATLABcomputer language, determine the coalbed methane (CBM) booster position and charging time preliminary theoretical method, and through the exact example verify the charging scheme for a particular instance of feasibility and practicability. |
