One of the oil and gas pipelines inspection methods is using new and advanced technology of smart pigs. This inspection method is introduced as an inline inspection method during service without interrupting the flow of oil and gas. This inspection method can be used for identifying the exact location and type of equipment installed on the pipeline. One of the most used types of smart pigs is magnetic flux leakage intelligent pigs. This type of pig can be used for inspection of oil and gas pipelines with high operating speeds comparing with other types of pig used. Nowadays the second generation of intelligent magnetic flux leakage pigs that known as high resolution smart pigs are used. In this paper, we consider while introducing properties of magnetic flux leakage smart pigs generations, by providing a practical experience, compare and validate results of using intelligent Pigs inspection method and field inspection by using error propagation and Gaussian distribution method.

Full text: IJEIR_1575_Final.pdf