Evaluation of anticorrosive coatings for tanker walls to transport oil in a high salinity environment, in the presence of tension,temperature and CO2

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Abstract

The offshore heavy oil project uses Floating Production, Storage and Offloading (FPSO) structural tanks to act as oil separators (washing tanks) a vital requirement. These tanks operate with a continuous layer of  produced water at high operational temperatures and high residence time, creating a critical corrosive  environment. This condition is far beyond typical conditions for tankers and makes the development of a  special test necessary to qualify paint systems for that condition. Traditionally the qualification of paint  systems in Brazil offshore units is based on NACE TM-0104 and ISO 20340 standards. But these standards have a test protocol based on physical/mechanical tests and corrosion tests. However, for this specific case, it did not suffice. Thus, a specific test was developed for washing tanks, which can evaluate simultaneously  both corrosion and mechanical properties. This paper presents the development of a new test to simulate  the behavior of paint systems submitted to cyclic tension in coatings in very corrosive environments (high  salinity, CO2, and high temperature).


Reference
ALMEIDA,N.L.; BERNAL A.A.G.; SOLYMOSSY V.;SERRA F.A.S.; QUINTELA J.P.Q. Evaluation of anticorrosive coatings for tanker walls to transport oil in a high salinity environment, in the presence of tension, temperature and CO². In: NACE CORROSION INTERNATIONAL CONFERENCE, 2010, San Antonio/Texas, 2010. Proceedings… / e / In: CONGRESSO BRASILEIRO DE CORROSÃO, INTERCORR, 30., 2010, Salvador, 2010, Salvador. Anais…Fortaleza: ABRACO, 2010

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