埋地油气输送管道沿线地温的计算  

Calculation of soil temperature along buried oil and gas pipeline

作　　者：刘玉峰 周英 陈凤 贾文龙[2] 

机构地区：[1]中国石油工程设计有限责任公司西南分公司,四川成都610000 [2]西南石油大学石油工程学院,四川成都610500

出　　处：《油气储运》2013年第12期1312-1315,共4页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金项目"天然气管道跨越结构清管动力响应实验及理论研究";No.51174172

摘　　要：针对如何计算一定深度下土壤温度的问题,基于半无限大空间非稳态导热理论,建立了油气输送管道埋深处的地温计算模型。结合粘土、轻壤土、砂土、砂砾及中、重壤土的土壤孔隙率和密度,研究了土壤在水淹、润湿、干旱、沙漠环境下的导热系数和体积热容计算方法,确定了地温计算模型中的土壤导热系数和体积热容取值。计算值与实测值的对比结果表明,该模型能够基于土壤质地、含水量、年平均气温、最高气温和最低气温准确计算地温值。Based on the unsteady heat conduction theory in half space, the soil temperature calculation model for deep buried pipeline was established to solve the problem of soil temperature calculation at a certain depth. According to the porosity and density of clay, light loam, sand, gravel, medium loam and heavy loam, the calculation methods of thermal conductivity and volumetric heat capacity of soil under flooding, wet, drought and desert environments were studied. The values of thermal conductivity and volumetric heat capacity of soil in the soil temperature calculation model were determined. The comparison between the calculated results and the measured ones shows that this model can calculate the value of soil temperature accurately based on soil texture, water content, annual average temperature, maximum temperature and minimum temperature. （6 Tables, 1 Figure, 10 References）

关 键 词：油气输送管道 工艺设计 地温 导热系数 数学模型 

分 类 号：TE832[石油与天然气工程—油气储运工程]