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| Research Status on Internal Corrosion Protection Technology of Oil & Gas Transportation Pipeline |
| Received:March 15, 2018 Revised:June 25, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.06.010 |
| KeyWord:oil & gas transportation pipeline internal corrosion technology resistant material lining technology |
| Author | Institution |
| ZHAO Yi |
Petroleum Engineering Technology Research Institute, Northwest Oil Field Branch Company, Sinopec, Urumqi, , China |
| XU Yan-yan |
Petroleum Engineering Technology Research Institute, Northwest Oil Field Branch Company, Sinopec, Urumqi, , China |
| ZHU Yuan-yuan |
Petroleum Engineering Technology Research Institute, Northwest Oil Field Branch Company, Sinopec, Urumqi, , China |
| WANG Mao-mao |
Anko Engineering Technology Institute Limited Company, Beijing , China |
| LI Da-peng |
Anko Engineering Technology Institute Limited Company, Beijing , China |
| WANG Xiu-yun |
Anko Engineering Technology Institute Limited Company, Beijing , China |
| XIAO Wen-wen |
Petroleum Engineering Technology Research Institute, Northwest Oil Field Branch Company, Sinopec, Urumqi, , China |
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| Abstract: |
| In view of internal corrosion problem of oil & gas transportation pipeline, the internal corrosion technology for oil and gas pipeline and their applied result were introduced, including corrosion resistant material, lining technology, coating technology and corrosion inhibitor injection technology. It was indicated that corrosion resistant metal material was featured with good corrosion resistance but has deficiency in economic performance. To reduce the production cost, double-metal composite pipe was selected as substitute for corrosion resistant metal material. But the corrosion problem occurred in the welding seam. The welding seam became the weak link which limited its application. Corrosion resistant non-metal material worked wonderfully in preventing corrosion, but its mechanical property and the capability of bearing high heat was poor. The scope of lining technology and internal coating technology were limited as a result of temperature, pressure and the composition of corrosive medium, such as CO2, H2S and solid particles. The corrosion resistance result of corrosion inhibitor injection technology was closely identified with corrosion inhibitor and dosing process. The corrosion inhibitor and dosing process should be changed according to actual working condition. In allusion to the existing problem of internal corrosion technologies above, the development trend of internal corrosion technology of pipeline was proposed. It included two aspects: overcoming the disadvantages of exiting internal corrosion technology and improving the corrosion resistance. Meanwhile, it is required to develop new anti-corrosion materials and internal corrosion technology which had the advantages of remarkable corrosion resistance result, less production cost, convenient operation and application and extension. |
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