长输原油管道并管混输运行方案研究  

Research on the operation plan of parallel and mixed transportation of long-distance crude oil pipelines

作　　者：张建昌[1] 丁妮 王立涛[1] 张妮[1] 于丹[1] 陈佳羽 ZHANG Jianchang;DING Ni;WANG Litao;ZHANG Ni;YU Dan;CHEN Jiayu(The Third Oil Pipeline Department of PetroChina Changqing Oilfield Company,Yinchuan Ningxia 750006,China;Xi'an Shida Paipute Technology Engineering Co.,Ltd.,Xi'an Shaanxi 710065,China)

机构地区：[1]中国石油长庆油田分公司第三输油处,宁夏银川750006 [2]西安石大派普特科技工程有限公司,陕西西安710065

出　　处：《石油化工应用》2024年第5期70-73,78,共5页Petrochemical Industry Application

摘　　要：为实现长庆油田第三输油处姬惠线和油惠线不加降凝剂和减阻剂运行,实现节能降耗,通过建模仿真,开展并管混输运行模式研究。首先,建立管网仿真模型,利用现场近5年历史数据进行模型调试与校验,使模型精度达到95%以上,能够准确描述现场的水力和热力特征;然后,分析并管混输后的管道沿线水热力分布,结合各站场设备和管线情况,研究并管混输的可行性;接着,通过控制边界条件,模拟分析并管混输的输量和温度控制范围。最后,进行现场试验验证,对比分析理论与实际。结果表明:姬惠线通过姬马复线或新建联络线分输一部分原油至油惠线,均可实现姬惠线不加减阻剂、油惠线不加降凝剂运行;根据输油计划,最大可分输320 m^(3)/h,最小需分输182 m^(3)/h,冬季最低出站温度为57℃,与并管混输前相比,可降低33℃;经过现场试验与应用,研究结果与现场运行结果一致,实现了节能降耗。To achieve the operation of the Jihui and Jinghui lines at the third oil transmission station in Changqing oilfield without the use of pour point depressants and drag reducing agents,aiming at energy conservation and consumption reduction,a study on blended transportation operation mode is conducted through modeling and simulation.Firstly,establish the pipeline network simulation model,utilizing historical data from the past five years for model debugging and validation,ensuring the model accuracy of over 95%and accurately depicting the hydraulic and thermal characteristics of the real pipeline network.Then,analyze the hydraulic and thermal distribution along the pipeline after blended transportation,integrating the equipment and pipeline conditions at various stations to investigate the feasibility of blended transportation.Next,by controlling the boundary conditions,simulate and analyze the volume and temperature control range of blended transportation.Finally,on-site experiments are conducted to validate the results by comparing the theoretical and actual cases.The results indicate that by diverting a portion of the crude oil from the Jihui line to the Youhui line via the Jima secondary line or newly constructed connecting lines,it is feasible for the Jihui line to operate without drag reducing agents and the Youhui line without pour point depressants.According to the oil transmission plan,the maximum diversion capacity is 320 m^(3)/h,with a minimum requirement of 182 m^(3)/h.The lowest outlet temperature in winter is 57℃,representing a reduction of 33℃compared to before blended transportation.The on-site validation and application imply that the research findings are consistent with the on-site operational results,resulting in energy conservation and consumption reduction.

关 键 词：原油管道 并管混输 管网仿真 仿真模型 运行方案 

分 类 号：TE832.1[石油与天然气工程—油气储运工程]