Abstract
A Windows-based model has been developed that can aid in predicting internal corrosion in pipelines and flowlines. The model, which was funded entirely by the U.S. Department of Energy, was created to help bolster the safety and integrity of the nation’s pipeline infrastructure. Its development has coincided with the expanding needs of industry, government and public awareness. In addition, its versatility makes it applicable to onshore and offshore pipelines and flowlines. The computer model incorporates physical, chemical and corrosion rate models for each increment of pipe length. The physical model addresses the overall physical description, temperature/pressure profiles, phase behavior and fluid properties, and hydrodynamics in the pipe. The chemical model focuses on characterization of produced condensate, produced water, pH and ion concentrations, pipe surface wettability and bacteria effect. The corrosion model concentrates on corrosion rate prediction based on flow dynamics and has an expert system for accurately adjusting the predicted corrosion rate.