MECHANISM OF CORROSION AND SCALE DEPOSIT OF TUBES IN WESTERN OILFIELD

J Chin Soc Corr Pro

2007, Vol. 27

Issue (4): 247-251 DOI:

Research Report

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MECHANISM OF CORROSION AND SCALE DEPOSIT OF TUBES IN WESTERN OILFIELD

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中国石油天然气集团公司石油管材研究所

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Abstract Corrosion and scale deposit reasons of tubes were discussed, through the in-situ investigation, pro?鄄duced water composition analysis, XRD analysis of scaling samples of single well in Western oilfield, combining scaling prediction and corrosion rate monitor. The results show that scaling types are mainly CaCO3?CaSO4 and iron rust, scaling in connection with corrosion. Predominating factors affecting corrosion and scaling of tubing are abundant in Ca2+?HCO3-?Cl- containing in produced water and CO2 exiting in accompanying gas with crude oil. Severe corrosion and scaling of tubes were found in this oilfield.

Key words: corrosion scale deposit tube anti-corrosion scaling control

Received: 21 February 2006

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;. MECHANISM OF CORROSION AND SCALE DEPOSIT OF TUBES IN WESTERN OILFIELD. J Chin Soc Corr Pro, 2007, 27(4): 247-251 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2007/V27/I4/247

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