Model to Predict Internal Pitting Corrosion of Oil and Gas Pipelines

A model has been developed to predict internal pitting corrosion of oil and gas pipelines This model is based on experiments carried out in the laboratory at high pressure and high temperature wider the operating conditions of the oil and gas pipelines There are two kinds of inputs. construction (pipe diameter, pipe wall thickness. and pipe inclination) and. operational (production rates of oil. Water. gas. solid. temperature. total pressure. partial pressures of hydrogen sulfide [H(2)S] and carbon dioxide [CO(2)], concentrations of sulfate. bicarbonate, and chloride) The model accounts for the statistical nature of the pitting corrosion. predicts the growth of internal pits based on the readily available operational parameters from the field. includes the pit growth rate driven by variables riot included in the model. considers the variation of the pitting corrosion rate as a function of Nine. and determines Me error in the prediction. The validity of this model was checked Using data obtained from seven operating pipelines