E3S Web Conf.
Volume 352, 20227th International Conference on Energy Science and Applied Technology (ESAT 2022)
|Number of page(s)||5|
|Section||Fossil Energy & Geological Engineering|
|Published online||27 June 2022|
Adsorption Behaviour and Thermodynamic Study of Triazine as A Corrosion Inhibitor for Mild Steel in Oilfield Produced Water
1 Xi’an Key Laboratory of Tight oil (Shale oil) Development, College of Petroleum Engineering, Xi’an Shiyou University, Xi’an, 710065, China
2 CNPC Changqing General Drilling Company, Xi’an, 71001, China
3 CNPC, Gas Production No.2, Changqing Oilfield Company, Changqing Industrial Group Co., Ltd., Xi’an, 710000, China
4 Gas Production No.2, Changqing Oilfield Company, CNPC, Yunlin, 719000, China
5 Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, 710065, China
* Corresponding author: email@example.com
In recent years, the corrosion problem of equipment and pipeline caused by oilfield produced water is becoming increasingly serious. In this work, corrosion inhibitor of triazine, synthesized from formaldehyde and ethanolamine, was evaluated using weight-loss techniques. The triazine was found to inhibit the corrosion of mild steel in simulated oilfield produced water. The adsorption of inhibitor was studied, which was consistent with the assumption of Langmuir adsorption model. Thermodynamic parameters of corrosion inhibition process were further calculated and analyzed, which indicated that adsorption of triazine inhibitor was exothermic, spontaneous and physical process.
Key words: Triazine / oilfield produced water / adsorption / corrosion inhibition
© The Authors, published by EDP Sciences, 2022
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