Numerical Simulation for Temperature Field of Buried Oil-Stolen Pipelines and Application of Thermograph Nondestructive Testing

摘要

This paper briefly presents the oil production and environment damage influenced by buried oil-stolen nowadays in oil field and introduced the detecting methods of buried oil stolen pipelines. The configuration characteristics of buried oil stolen pipelines are analyzed. The thermal conditions of buried stealing oil pipelines were evaluated. The physical model and mathematical model of buried stealing pipelines were established. Considering the influence of computation performance to the configuration characteristics of buried oil stolen pipelines, this paper adopted structured meshes and unstructured meshes in meshing scheme. A user define function program of periodic temperature in unsteady-state atmosphere environment was worked out. Computational fluid dynamics software worked out numerical calculation of buried stealing pipeline. The result shows that it is more convenient for infrared imaging in winter. The analysis of data to numerical calculation of different seasons has laid the scientific base for later research on buried oil stolen pipeline.