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中俄原油管道作为国内第一条途经多年冻土区的原油管道。该项目的主要特点:长距离穿越多年冻土区和原始森林区,采取常温输送的输油工艺,沿线野生动植物种类繁多,生态环境脆弱。项目建设取得的主要经验:多年冻土区采用“埋地+厚壁管+换填+保温层”的管道敷设方法,纵坡地段采用木屑护坡,多年冻土区选择冬季施工,边境施工采用“封闭建设区”的管理模式等。该项目实测的油温、黏度等油品物性,根据实测地温反推得到的传热系数等基本参数可为类似项目提供设计依据,运行过程中发现的设计余量小、管道结露等相关问题可为今后类似项目提供参考。(参9)
Sino-Russian crude oil pipeline as the first crude oil pipeline through the permafrost. The main features of the project: Long-distance traversal of permafrost and virgin forest areas, transportation of oil at room temperature to take a variety of wildlife along the line, the ecological environment is fragile. Main Experiences Obtained in Project Construction: The pipe laying method of “Buried + thick-walled pipe + replacement + insulation layer” is adopted in permafrost regions. Sawdust slope protection is adopted in the longitudinal slope sections. Winter construction is selected in the permafrost regions. Border construction Use “closed construction area ” management mode. The measured oil temperature, viscosity and other oil properties of the project, the basic parameters such as the heat transfer coefficient obtained from the measured geothermal inverse can provide design basis for similar projects, small design margins found during operation, dew condensation and other related issues For future similar projects provide a reference. (参 9)