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以输气效率作为确定输气管道清管周期的依据,若输气效率低于90%,则需实施清管作业。基于摩阻因数、管输流量、输气效率的计算,建立了苏里格气田天然气集输管道清管周期的数学模型,计算了各段集输管道在不同输气量下的输气效率和压差关系曲线,依此可以确定不同输气工况下的清管周期。
To gas transmission efficiency as the basis for determining the pipeline cycle, if the gas transmission efficiency is less than 90%, then the implementation of pigging operations. Based on the calculation of friction coefficient, pipe flow and gas transmission efficiency, the mathematical model of the gas pipelaying cycle of natural gas gathering pipelines in Sulige gas field was established. The gas transmission efficiency of each section of gas gathering pipelines under different gas transmission rates and Pressure curve, which can be determined under different gas delivery conditions pigging cycle.