Three calculation methods have been used to study waxy oil temperature drop after shutdown for both buriedpipeline and overhead pipeline.
本文用三种计算方法研究了埋地和架空管线中多含蜡原油管道停输后的温降，并与现场实测结果作了初步比较。
2
A mathematical model for determining the thermal influence zone of buried hot oilpipeline was developed and solved numerically by the finite element method.
建立了埋地热油管道热力影响区的数学模型，并用有限元法进行了求解。
3
Main application: It is Widely applied to the impressed current cathodic protection of oil drilling platform at sea, buriedpipeline and cables under ground.