Wet Gas Internal Corrosion Direct Assessment Methodology for Pipelines

Wet gas internal corrosion direct assessment methodology for pipelines(WG-ICDA) can be used alone as a main assessment method for internal corrosion.It does not depend on intelligent pigs,pressure testing or ILI.Meanwhile,the method of WG-ICDA is introduced.The standard of wet gas internal corrosion direct assessment methodology for pipelines is promulgated in 2010 by NACE.On this basis,its scope and purpose have been discussed,four steps of this method expounded,and the key factors affecting this method analyzed.It recommends the method to be applied to engineering practice,and it will perfect internal inspection methods and integrity management,improve the preventive management and maintenance for the internal corrosion of pipeline.