Oilfield Glossary
Oilfield Glossary
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sweet corrosion

1. n. [Well Completions]
The deterioration of metal due to contact with carbon dioxide or similar corrosive agents, but excluding hydrogen sulfide [H2S]. Sweet corrosion typically results in pitting or material loss and occurs where steel is exposed to carbon dioxide and moisture.
2. n. [Enhanced Oil Recovery]
The corrosion caused by contact with carbon dioxide [CO2] dissolved in water. In gas condensate wells, sweet corrosion takes the form of deep pitting inside the tubing walls. The pitting is produced only at depths where the acidic gas contacts condensed water droplets.