Study and Improvement of Oilfield Sewage Corrosion Test Methods

Abstract:

The corrosion status and results in a certain water injection station in Shanbei oilfield were monitored and evaluated by flow corrosion test (FCT) (with homemade corrosion test device), static corrosion test (SCT), and water tank corrosion test (WTCT). The coupons after corrosion tests were observed by Scanning Electron Microscope (SEM). It was found that: the corrosion rates of SCT, FCT and WTCT were 0.0469~0.0552 mm/a, 0.5126~0.5299 mm/a, and 0.3250~0.3414 mm/a respectively; the corrosion rates SCT were much smaller than actual. The severity of pitting corrosion, pointed corrosion and other forms of local corrosion cannot be reflected by SCT. The corrosion rates and behaviors tested by homemade corrosion test device are more close and similar to the real.

• Periodical: Advanced Materials Research (Volumes 838-841)
• Pages: 2488-2493
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.838-841.2488
• Online since: November 2013
• Authors: Kun Jiao, Cheng Tun Qu*, Bo Yang, Xie Qian
• Keywords: Corrosion Rates, Oilfield Sewage, Oilywater, Static Corrosion

References

[1] Yunling Ji, Jingwu Zhang, Li. Zhang Oil Field Corrosion and Protection Technology[M]. Beijing: Petroleum Industry Press, 2009: 1~39.

[2] Chengtun Qu, Yun Ma, Juan Xie. Introduction of Oil and Gas Field Enverimental Production[M]. Beijing: Petroleum Industry Press，2009: 88~120.

[3] SY/T 5523-2000, Oil and Gas Field Water Analysis Methods[S] (in Chinese).

[4] SY/T5329-94, Clastic Rock Reservior Waterflood Recommended Indexes and Water Quality Analysis Methods[S] (in Chinese).

[5] SY5237-2000, the Oilfield Produced Water Corrosion Inhibitor Performance Evaluation Methods[S] (in Chinese).

[6] Yoon-Seok Choi, Srdjan Nesic. Determining the corrosive potential of CO2 transport pipline in high pCO2-water environments [J]. International Journal of Greenhouse Gas control, 2011, 18(5): 788~797.

DOI: 10.1016/j.ijggc.2010.11.008

[7] Zhili Li. The Erosion and Running Environment of Multiphase Flow Pipeline Design Sandards [J]. Journal of Oil and Gas Storage and Transportation, 1996, 15 (4), 48 ~ 50.

[8] Xizhu Zhu, Tianhao Jiang, Libiao Li, etc. The Dissolved Gas in oil well Corrosion Speed impact Analysis [J]. Journal of Petrochemical Industry Applications, 2011, 30 (40) 77 ~ 80.

[9] Guoxian Zhao, Lv Xianghong, Yong Han. The Velocity Influence on the Corrosion Behavior of P110 steel [J]. Journal of Materials Engineering, 2008, 8: 5 ~ 8.

[10] Changfeng Chen, Minxu Lu, Guoxian Zhao, etc. The Temperature Concentration of Cl-, Cr2+ Element Influence on CO2 Corrosion of N80 steel electrode process [J]. Journal of Metals, 2003, 33 (8) 6: 848-854.

[11] Zhu Jinglong, Sun Cheng, Wang Jia, etc. Research Progress on CO2 Corrosion and Corrosion Control [J]. Journal of Corrosion Science and Protection Technology, 2007, 12 (5) : 350 ~ 353.

[12] Weijun Zhou, Milin Yan, Chengda Wang. Trace H2S N80 Tubing steel in CO2 containing sulfur resistance and the corrosion behavior of high concentration of Cl- Corrosive Medium [J]. Journal of Corrosion Science and Protection Technology, 2007, 12 (3) : 192 ~ 195.