According to the requirements of constructing a fair and open large?scale platform by the National Pipeline Network Group,the surplus transportation capacity of crude oil pipelines will be opened to the whole society.This article investigates the changes in energy consumption costs in the batch transportation of blended crude oil in pipelines using a simulation and modeling approach.Based on the simulation results,an optimization model for the batch transportation of blended crude oil in the pipeline system is established.The relationship between energy consumption costs and viscosity,as well as throughput index variations,is analyzed.This optimization model enables the cost?effective batch transportation of blended crude oil with different viscosities, thereby providing technical support for the safe and economically efficient transporting of new crude oil with different properties in the pipeline.