Corrosion Control


Corrosion Control :

(n.) Enhanced Oil Recovery. The measures used to prevent or considerably reduce the effects of corrosion. Corrosion can occur anywhere in the production system, either at bottomhole or in surface lines and equipment. Some practices for corrosion control involve: cathodic protection, chemical inhibition, chemical control (removal of dissolved gases such as hydrogen sulfide, carbon dioxide and oxygen), oxygen scavenging, pH adjustment, deposition control (for example, scales) and coatings. One of the most difficult environments for corrosion control is high bottomhole temperatures, such as 400 to 500oF [200 to 260oC]. The corrosion rate will vary with time depending on the particular conditions of the oil field, such as the amount of water produced, secondary recovery operations and pressure variations. Therefore, corrosion control is a continuous process in oil and gas production operations. See: cathodic protection, corrosion rate, oxygen scavenger, secondary recovery. More Details: Corrosion in the Oil Industry; Scanning for Downhole Corrosion

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