A review of pipeline monitoring and periodic inspection methods

Abstract

T HE SAFETY AND RELIABILITY of gas and oil pipeline systems are dependent upon the effectiveness of current monitoring and inspection techniques. This paper outlines the present methods used for constant, or on-line, monitoring of pipeline systems, including a discussion of their reliability, sensitivity, and response time for detecting system irregularities. Periodic inspection and monitoring systems are discussed to highlight the techniques used to supplement on-line monitoring techniques and the capabilities for accurately locating defects and degradation before pipeline failure occurs. Future technologies are then discussed to provide insights into the potential for overcoming the limitations of current systems. Key