The mathematical model is established in the double-pipe mixed oil gathering and transportation process, and its initial investment should include investment in the joint station metering station pipeline and auxiliary materials and construction of thermal insulation materials. The initial investment is mainly related to the thickness of the length of the pipe diameter of the station, and the length of the pipe is related to the position of each station and the connection between the station and the station. After the system is put into operation, its power and heat consumption are an important part of the operating cost of the heavy oil gathering and transportation system. It is related to the thickness of the oil pipe temperature and the length of the pipe diameter insulation and the water content of the oil well production. And these factors are mutually influential and restrictive. For example, the power consumption of the system is mainly reflected in the pressure loss of the pipeline. The pressure loss is determined by the medium flow rate and viscosity of the pipeline diameter, and the length of the pipeline is the factor that affects the initial investment. It can be seen that the factors affecting the initial investment will also affect the operating costs. Therefore, in the design, you should not only consider the initial investment, nor can you only consider the operating costs. Both must be considered at the same time. By analyzing the impact of various optimization targets, the optimized design variables are the location and number of joint stations, the location and number of stations, the diameter of the oil well to the metering station to the joint station, and the anti-corrosion insulation. Layer thickness, pipe diameter of the liquid mixing pipe from the oil well to the metering station to the combined station and the thickness of the anti-corrosion insulation layer, the oil content of each well and the oil mixing temperature of the combined station. The distance from the well to the metering station should be greater than the given distance to ensure that the well can work normally, that is, the total number of N wells in the test. The pipe diameter limit mainly includes three aspects: the pipe diameter should be selected within the standard pipe diameter series. The pipe diameter of the upper pipe should be greater than the pipe diameter of the next pipe. The pipe diameter of the pipe should be smaller than the pipe of the corresponding oil pipe. path. This increases the difficulty and workload of the solution, and the problem becomes complicated as the size of the oil field increases, making the calculation amount unacceptable. Therefore, some assumptions must be made and an effective solution algorithm must be sought.
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