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Web of Proceedings - Francis Academic Press
Web of Proceedings - Francis Academic Press

The Evaluation of Inhibitor for Water Injection Pipeline of one Oilfield

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DOI: 10.25236/CLLA.2019.004

Author(s)

Xu Shiqi, Hao Shangjing

Corresponding Author

Xu Shiqi

Abstract

To solve the serious corrosion of oilfield injection pipeline in recent years, the sample of injection water and corrosion products were taken from injection station of one oilfield, according to the analysis of corrosion products by The X-ray diffraction and The X-ray spectrometer, the main reasons of corrosion are carbonate ions (or carbon dioxide gas) and the outcome of combined action of salts. So two kinds of imidazoline corrosion inhibitors were developed. Then the components of injection water were analysed, the efficiency of inhibitor and corrosion mechanism of the two kind of corrosion inhibitors were evaluated by weight loss method and electrochemical method, the experimental results show that two kinds of corrosion inhibitors have better effect on the water injection system corrosion, The corrosion effect is better when two kinds of inhibitors LED and ODD by 1:3 proportion distribution compound.

Keywords

Oilfield; Injection pipeline; Corrosion; Inhibitor