The invention provides a method and device for optimum design of
oil field gathering and transportation systems. The method comprises the following steps of: determining an initial position of a booster
station according to a gathering and transportation
radium, a number of oil wells under administration of the
station, a
station yard processing scale and a length sum of pipelines of the oil wellsunder the administration of the station
yard; optimizing the initial position of the booster station according to the length sum of the pipelines of the oil wells under the administration of the station
yard and
a weighting coefficient, so as to obtain an optimized position of the booster station; determining an optimum topological form of a series
pipe network according to the optimized positionof the booster station and positions of the oil wells, so as to ensure that the length sum of the pipelines of the oil wells under the administration of the station yard is the shortest; and determining
pipe diameters and wall thickness parameters of the pipelines according to the optimum topological form. According to the method and the device, an
objective method and theoretical basis are provided for the
layout of stations of series
pipe network gathering and transportation systems and the optimum design and planning of pipeline connection and parameters, so that the defects of subjectivejudgment relaying on personal experiences and habits are avoided, and benefit is brought to reduce construction investment and operation expenses of the gathering and transportation systems.