Data model for the station integrity management along oil and gas pipelines

Data for stations (pump stations or gas compressor stations) integrity management are increasingly diversified. As a basis for the data management, data model employs traditional techniques which are specific for certain objects. However, the correlation between data elements is weak, and frequently changing data items result in the instability of model. Ultimately, an effective closed loop can not be formed among different operations in the management. In this paper, considering the demands for the domestic station integrity management, a corresponding spatial data model is proposed based on the data model of long-distance oil or gas pipeline. This geometric network-based model can be used to generate topological spatial relations between pipeline network and equipment/facilities at pump stations or gas compressor stations. Its functions may also be customized and extended as a response to new technologies or methods. The application in a large pipeline network-station of PetroChina has proved the effects of the model, providing valuable guidance for other cases.