| ZHAO Mi-feng,FU An-qing,QIN Hong-de,XIE Jun-feng,XIE Gang,LONG Yan,LI Yan,WANG Hua.Overview and Future Research Prospect of Tubing String Corrosion of High Pressure and High Temperature Gas Well[J],47(6):44-50 |
| Overview and Future Research Prospect of Tubing String Corrosion of High Pressure and High Temperature Gas Well |
| Received:December 06, 2017 Revised:June 20, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2018.06.007 |
| KeyWord:HPHT gas well tubing string corrosion corrosion resistant alloy 13Cr SCC |
| Author | Institution |
| ZHAO Mi-feng |
Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla , China |
| FU An-qing |
1.CNPC Tubular Goods Research Institute, Xi’an , China; 2.SKL for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi’an , China |
| QIN Hong-de |
Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla , China |
| XIE Jun-feng |
Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla , China |
| XIE Gang |
Infrastructure Construction Department of Petro China Changqing Oilfield Company, Xi’an , China |
| LONG Yan |
1.CNPC Tubular Goods Research Institute, Xi’an , China; 2.SKL for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi’an , China |
| LI Yan |
Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla , China |
| WANG Hua |
Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla , China |
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| Abstract: |
| The corrosion of tubing strings arising from high temperature, high pressure and highly corrosive medium is a great threat and challenge to wellbore integrity of HPHT gas wells at home and abroad. Service environment, production process, loading condition, and corrosion status of HPHT gas wells in Tarim Basin were analyzed. Three major failure forms including acidizing process induced corrosion, chloride ion/H2S/annulus protection fluid induced fluid stress corrosion cracking and crevice corrosion at tubing string ends were emphatically reviewed. Meanwhile, corrosion mechanism and rule were analyzed and concluded according to literature research and field failure cases. Finally, five key research areas are proposed for future study on HPHT gas well tubing string: full-life-cycle based material selection, 15Cr and 17Cr new pipes, acidizing inhibitor for special CRAs, stress corrosion cracking sensitivity in completion fluid, and full-scale tubing corrosion experimental method. |
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