Pressure Test Technology in Gas Transmission Pipeline Development Status

Pressure test of a gas transmission pipeline are a comprehensive inspection of the quality of pipeline construction,the property of piping materials and the overall quality of the pipe.They are also the final survey to ensure a pipeline system to be in a failure-free safe operation under the designed pressure before the system is put into production.Therefore,based on the significance of the pipeline pressure testing in pipeline construction and operation,this paper descibes the division of pipe sections,selection of pressure test media,and determination of test pressure in pipeline pressure tests.It introduces the domestic and foreign gas pipeline pressure test standards,codes and criteria and the relevant provisions of the above-said areas,and conducts analyses of the differences between the different standards,codes and criteria.According to the level of China's pipeline pressure test status and the gap between foreign countries to discuss the gas pipeline pressure testing technology development it China.