Failure Analysis of Dissolved Gas Floating Water Export Pipeline in Oilfield Production Water System
This paper presents the failure analysis of the outlet pipeline of the water system in South China Sea.To analyze the morphology,material,mechanical properties and corrosion products of the failed samples,And conducted the corrosion simulation evaluation experiment,This failure analysis project adopts scanning electron microscope(SEM),X-ray energy spectroscopy analyzer(EDS),digital display Vicker hardness meter,direct reading spectrometer(OES)and other equipment,The analysis shows that the pipeline material,mechanical properties and external anti-corrosion layer meet the requirements,Pipeline is at risk of local corrosion,In the weld position,The cause of its corrosion comes mainly from the corrosion of H2S and CO2.Pay particular attention to the corrosion of H2S.
万方数据
维普
