A computer model has been developed which is capable of predicting the physical and chemical condition inside of a flowline or pipeline. From this information it is then possible to provide a prediction of the internal corrosion rate.
This "free" software was funded by the US. Department of Energy and has undergone several revisions and is currently in Phase II. The windows based model consists of 4 modules, which calculate the temperature, pressure, phase equilibrium, flow dynamics as well as the pH, scale tendency and the uninhibited corrosion rate. An expert system has been developed which adjusts the predicted corrosion rate based on fluid parameters.
A number of field and hypothetical cases for both the flowlines and pipelines have been presented which show the utility of the model. The model has been compared to PipePhase, a commercial package, and the results have been very satisfactory.