The development of a mechanistic-chemometrics model with multi-degree of freedom for pitting corrosion of HP-13Cr stainless steel under extremely oilfield environments

A multi-degree of freedom mechanistic-chemometrics model for predicting the pitting damage HP-13Cr stainless steel is developed by combining mechanistic models and chemometrics method. The reconstructed considering effect single factors, such as high temperature, CO2 pressure, flow rates complex stress distribution. are combined together weight coefficients variable interaction using Finally, predicted results validated six-year-served field data, which indicates that newly accurate highly reliable.