Analysis on spatiotemporal data of long-distance pipelines

With the growing long-distance pipeline mileage in China, pipeline data grows exponentially. It is of great significance for the safe operation of pipelines to investigate the spatial and temporal distribution patterns of pipeline data, so as to take preventive measures. In this paper, the third-party construction and hydraulic protection project of pipelines were taken as examples for analysis. Based on a large amount of data collected in pipeline integrity management system, the spatial and temporal distribution patterns of domestic long-distance pipelines were, for the first time, analyzed by the frequency spectrum analysis technology and the GIS technology. The spatial distribution characteristics were analyzed by GIS technology. It is indicated that third-party construction is carried out most frequently in Yinchuan, Shenzhen, Lianyungang, Nanjing and Wuxi. By means of Fourier transform, the temporal distribution of the third-party construction data presents obvious periodicity or quasi-periodicity. It is revealed from the GIS analysis results that hydraulic protection projects are the densest in both Zhongxian and Pingxiang. When Fourier transform was performed on the data of pipeline hydraulic protection projects, no obvious periodicity was presented. Finally, it was proposed that non-linear method would be an effective way for spatiotemporal data analysis of long distance pipeline in the future.