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Line Modeling of C02 Corrosion of Offshore Pipeline

Ramli, Mohd Safwan Izzudin (2012) Line Modeling of C02 Corrosion of Offshore Pipeline. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

C02 corrosion has been a recognized problem in oil and gas production and transportation facilities for many years. The common approach in predicting C02 corrosion is by using point modeling where corrosion rate is calculated based on inlet design parameters. This approach is conservative as it only considers the maximum design. Line modeling is multi-point simulation that allows us to get the information on corrosion rates at each point along the pipeline, thus allowing us to make more accurate and precise decisions. This project will analyze both modeling methods and compared both results with the field corrosion rate data. A case study from Malaysia oilfield is chosen for total length of 10 kilometers pipeline. MULTICORP software is used to simulate the point modeling and line modeling. For the first 3 kilometers, both modeling approaches predict almost similar corrosion rates. For the remaining part of the pipeline, which is from 3-7 kilometers, line modeling approach predicts closer corrosion rate to the actual corrosion rate compared to point modeling approach. The accuracy of either point modeling or line modeling depends on variability of main process parameters such as temperature and fluid flow.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Corrosion engineering - Degradation of materials due to temperature, stress and environment
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 06 Nov 2013 10:48
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/10159

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