Research Article
Study on the Influence of Pulse Current Cathodic Protection Parameters of Oil Well Casing
| Estimation or prediction of the corrosion rate (mm/a) | Test time (h) | Replacement of solution or not |
| >1.0 | 24–72 | No | 1.0–0.1 | 72–168 | No | 0.1–0.01 | 168–336 | Replacement once in about 7 days | <0.01 | 336–720 | Replacement once in about 7 days | >1.0 | 24–72 | No |
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