基于非结构化网格的含蜡原油管道周围土壤温度场模拟  

Simulation of Soil Temperature Field Around Waxy Crude Oil Pipeline Based on Unstructured Grid

作　　者：戚菁菁[1] 初同龙 孙伶 Qi Jingjing;Chu Tonglong;Sun Ling(Natural Gas Pipeline Engineering Co.,Ltd,CNPC,Langfang 065000,Hebei,China;Gas Branch,China Petroleum Pipeling Engineering Co.,Ltd.,Langfang 065000,Hebei,China;Science and Technology Department,Pipeline Branch of CNPC,Langfang 065000,Hebei,China)

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000 [2]中石油管道局工程有限公司燃气分公司,河北廊坊065000 [3]中国石油管道分公司科技处,河北廊坊065000

出　　处：《石油工业技术监督》2020年第2期58-62,共5页Technology Supervision in Petroleum Industry

摘　　要：含蜡原油具有易凝高黏的特点,为保障管道的安全输送,对输送温度的准确性有很高的要求,因此准确地模拟出温度场是一个至关重要的技术问题。提出了热油管道正常运行过程的非稳态传热模型,并采用基于非结构化网格的数值计算方法对管道二维温度场进行计算,选取冻土区某含蜡原油管道进行工程算例分析,得到了该管道2℃及5℃油温条件下温度场云图及等值线图,可指导管道的安全运行。Waxy crude oil has the characteristics of easy coagulating and high viscosity.In order to ensure the safety of pipeline trans⁃portation,there is a high demand for the accuracy of transportation temperature.Therefore,the accurate simulation of temperature field is a crucial technical problem.The unsteady heat transfer model of hot oil pipeline in normal operation process is proposed,and the twodimensional temperature field of pipeline is obtained by numerical calculation method based on unstructured grid.Taking a waxy crude oil pipeline in permafrost area as an example,the temperature field cloud maps and isoline maps of the pipeline under the condition of 2℃and 5℃oil temperature are obtained,which can be used to guide the safe operation of the pipeline.

关 键 词：含蜡原油管道 温度场 非结构化网格 数值计算 

分 类 号：TE832[石油与天然气工程—油气储运工程]