Research on energy conservation and consumption reduction conveyance of gathering and transportation pipeline based on experiment and simula-tion analysis
In order to solve the problems of high energy consumption and high operation cost in the pipeline transportation of the high-water cut ground gathering system,the laboratory experiments are combined with simulation analysis.The wall sticking rate and wall sticking quality of the water-cut crude oil in typical blocks are measured indoors through the pressurized simulation tank,and the accuracy of the wall sticking tempera-ture is verified through on-site cooling experiments.Then in view of the operating state of gather and transporta-tion pipeline,the numerical simulation have been steadily carring out,and the influences of outlet tempera-ture change on the temperature and pressure along the path have been analyzed.Under the condition that the pipeline is determined not to be overpressurized,the scheme of normal temperature transportation is formulat-ed and implemented.The results show that the wall temperature corresponding to the abrupt change in wall qual-ity is 28℃,which is consistent with the peak wax precipitation temperature of crude oil.The simulation re-sults show that after the furnace is shut down,the pressure of the main line will rise to 1.26 MPa,but it does not exceed the maximum allowable external pressure.After the implementation of normal temperature transmis-sion,the power cost increases slightly,the heat cost is reduced to 0 yuan/h,and the total operating cost is reduced from 320.63 yuan/h to 98.82 yuan/h.It is expected that the annual operating cost can be saved 1 597 000 yuan.
gathering and transportation pipelinesticky wall temperaturesteady state simulationpower costheat cost
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