Corrosion Factors Analysis and Anti-Corrosion Measures Research of Changqing Oil Field Concentrated Treatment Station

Abstract:

In this experiment the main corrosion factors of produced water in Changqing Oil Field concentrated treatment station was studied. In terms of ion component analysis, dissolved oxygen detection, bacteria content measurement, corrosion rate determination, as well as Gray Relational Analysis (GRA) method. And the corrosion products Scanning Electron Microscope Energy Dispersive X-ray analysis(SEM/EDX) were conducted. The results showed that the TGB content, pH value, S2-content, HCO3-, and dissolved oxygen content were the main corrosion factors. This study indicated that the corrosion rate of the system could be reduced from 0.0872mm/a to 0.0074mm by increasing pH value of oilfield produced water appropriately, strengthening the intensity of sulfur removal, controlling the bacterial content by adding fungicides etc.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1144-1148
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1144
• Online since: February 2013
• Authors: Cheng Tun Qu, Xin Wang, Hong Guang Su, Jing Tian, Xue Yang
• Keywords: Anti-Corrosion, Corrosion, Grey Relational Analysis (GRA), Produced Water

References

[1] Chengtun Qu, Xinqiang Wang. Cationic Organic Polymer ky-3 and Polyaluminum Chloride in Combination as excellent Purifying Agent for Oilfield Produced Water [J]. Oilfield Chemistry, 2000, 17(4): 324-326.

[2] Shijun Zhang, Genxian Zhou. Oilfield Water Treatment Detection Technology [M]. Zhengzhou: Yellow River Conservancy Press, 2003: 54.

[3] Fang Liu, Feng Yang, Chengtun Qu. Research on the Corrosion and Controlling-method of Produced Water in Nan 2 Flooding-station [J]. Petrochemical Industry Application, 2012, 31(5): 65-68.

[4] Lin Jiang, Hongmei Dou, Hongwei Wu, et al. Study on Corrosion Reason and Influence Factors of Water Injection System in Gasi Oilfield [J]. Guangzhou Chemical Industry, 2011, 39(12): 61-62.

[5] Yuxi Wang. Study on the Corrosive Situation and Corrosive Mechanism on the Suijing Oil Field [J]. Journal of Yulin University, 2009, 19 (2): 62-64.

[6] Qingcheng Luo, Kaiquan Shi, Yong He, et al . A new method of gray system [M] Beijing: Science Press, 1993: 15-51.

[7] Yunping Zheng, Jie Shu, Lei Li, et al. Grey Relational Analysis on Influence Factors of Corrosion in Production System of Luliang Oilfield [J]. OGST, 2010, 9(10): 774-775.

[8] Baowei Nie, Li Liu, Chengtun Qu, et al. Corrosion Factors of Water Injection System in Shuanghe Oil Treatment Station [J]. Corrosion& Protection, 2012, 33(5): 437-440.

[9] Qingru Meng, Xudong Wang, Lianfei Zhang, et al. Effect of Spraying in Complex Salt Fog Tests Studied by Grey Relational Analysis[J]. Materials Protection, 2010, 3(10): 23-25.

[10] Julong Deng. Systems and Control letters [J]. Systems and Control Letters, 1982, 1(5): 288.

[11] Julong Deng. Gray System Theory Tutorial [M]. Wuchang: Huazhong University of Science and Technology Press, 1990: 10-21.

[12] Chaoyang Fu, Yi Luo, Jiasang Zheng, et al. Grey Association Analysis of Corrosion Factors of Gas Well Tubing in Zhongyuan Oil Field [J]. Natural Gas Industry, 2000: 20(1): 74-77.

[13] Fang Sun. Jiangsu Oil Field Injection Water Quality Corrosion Factors and Control [J]. Gasfield Surface Engineering, 1997, 16(6): 49-51.