Inhibition effect of ethanolamines on oil well tubular material in hydrochloric acid

D. Jayaperumal (D. Jayaperumal is based at the Central Electrochemical Research Institute, Karaikudi, India.)
S. Muralidharan (S. Muralidharan is based at the Central Electrochemical Research Institute, Karaikudi, India.)
G. Venkatachari (G. Venkatachari is based at the Central Electrochemical Research Institute, Karaikudi, India.)
N.S. Rengaswamy (N.S. Rengaswamy are all based at the Central Electrochemical Research Institute, Karaikudi, India.)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Publication date: 1 December 2000

Abstract

Acidization is one of the most important techniques to increase the productivity of crude petroleum oil and gas wells. The effective way for protecting these oil well tubular materials is by using corrosion inhibitors during the acidization process. The present study deals with the evaluation of inhibition effect of ethanolamines on oil well tubular materials of grade N‐80 steel in 15 per cent hydrochloric acid at room temperature with 0‐2 per cent amine concentrations. The amines such as mono, di and triethanolamine were studied for their inhibiting capacity by mass loss method, DC polarization method and AC Impedance method. The inhibitor efficiency increases with increasing concentration of amines. Monoethanolamine is found to be more effective than the other two amines.

Keywords

Citation

Jayaperumal, D., Muralidharan, S., Venkatachari, G. and Rengaswamy, N. (2000), "Inhibition effect of ethanolamines on oil well tubular material in hydrochloric acid", Anti-Corrosion Methods and Materials, Vol. 47 No. 6, pp. 349-355. https://doi.org/10.1108/00035590010354186

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MCB UP Ltd

Copyright © 2000, MCB UP Limited

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