Research Article
The Application of Mechanical-Chemical Corrosion Theory in Downhole Tubing CO2 Corrosion Research
Table 3
Appearance of specimen and average corrosion rate.
| | Material | Photos of specimen | Corrosion | System pressure | Corrosion rate
mm/a |
| |
N80 | | Pitting | 0.4 MPa/0 MPa | 1.5620 | | Pitting | 0.4 MPa/4 MPa | 1.4496 | | Pitting | 0.4 MPa/15 MPa | 1.5410 |
| |
1Cr | | General corrosion | 0.4 MPa/0 MPa | 2.0383 | | General corrosion | 0.4 MPa/4 MPa | 2.0917 | | General corrosion | 0.4 MPa/15 MPa | 1.9025 |
| |
3Cr | | General corrosion | 0.4 MPa/0 MPa | 1.5863 | | General corrosion | 0.4 MPa/4 MPa | 1.5546 | | General corrosion | 0.4 MPa/15 MPa | 1.4907 |
|
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