Internal Corrosion Direct Assessment (ICDA) is a process used to evaluate pipeline
integrity based on identifying locations along the pipeline where internal corrosion
damage is most likely to occur. Liquid Petroleum Internal Corrosion Direct Assessment
(LP-ICDA) is designed to address pipelines that are fully packed with a liquid phase and
Wet Gas Internal Corrosion Direct Assessment (WG-ICDA) is being targeted towards
wet gas pipelines much like Dry Gas ICDA (DG-ICDA) has been developed to address
normally dry gas transmission pipelines. The four step ICDA process requires integration
of pre-assessment, indirect inspection data and detailed examination data to determine
overall pipeline integrity. The prioritization of critical locations along a pipeline forms a
major part of this process and includes flow modeling, flow-regime predictions,
characterizing the environment and developing a pipeline profile identifying the critical
locations most susceptible to internal corrosion.