This paper reviews the effect of low molecular weight organic acids ( acetic, propionic, butyric) on corrosion rates in the presence of CO2. The effect of the mineral content of the produced water is also discussed. Laboratory methods for determining the concentration of low concentrations of organic acids are discussed. Laboratory and field data are presented.
There is uncertainty about the best way to determine the corrosion risk for gas-condensate pipelines, and use of chemical inhibitors as mitigation strategy. We present considerations when devising corrosion mitigation and inhibition strategies, as well as a recommended test for inhibitor qualification.