Integrity Analysis of Natural Gas Pipeline

With the large development of coalbed methane,shale gas and other unconventional natural gas,higher requirements for pipelines safety have been put forward. In this paper,the concepts of pipeline integrity and the management process were explained. The risks leading to gas pipeline invalidity and the accident consequences of explosion were analyzed and the key technologies of the integrity management were explored,including pipeline risk assessment technology,risk-based testing technology,pipeline integrity assessment,repair and maintenance. On this basis,specific proposals were put forward for developing the integrity management of Chinese natural gas pipeline.