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10021 Evaluation of Anticorrosive Coatings for Tanker Walls to Transport Oil in a High Salinity Environment, in the Presence of Tension, Temperature and CO2

Picture for 10021 Evaluation of Anticorrosive Coatings for Tanker Walls to Transport Oil in High Salinity
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Product Number: 51300-10021-SG
ISBN: 10021 2010 CP
Author: Neusvaldo Almeida, Adriano Garcia Bernal, Victor Solymossy and Flavio Augusto S. Serra
Publication Date: 2010
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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).

Keywords: tankers, coatings, fatigue, heavy oil, salinity
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).

Keywords: tankers, coatings, fatigue, heavy oil, salinity
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