Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

Risk Based Integrity Modeling of Offshore Process Component Piping

A/P Sreetharan, Thevi (2015) Risk Based Integrity Modeling of Offshore Process Component Piping. IRC, Universiti Teknologi PETRONAS. (Unpublished)

[img]
Preview
PDF
Download (755Kb) | Preview

Abstract

This paper discusses on the methodology to develop a risk-based integrity model of offshore process piping (surface flowlines) which degrades due to corrosion. Gas processing plants are highly hazardous which deals with chemicals at extreme conditions such as high temperature and high pressure. These facilities should be going through the right maintenance and inspection from time to time to ensure a safe environment, continuous and fault-free operation. Deterioration of gas facilities gives a major impact on the continuous operation of the facilities. This paper proposes a risk-based integrity modelling methodology to have a fault-free operation for the facility’s piping (also known as surface flowlines). The risk‐based integrity model is to develop the model of offshore surface flowlines’ corrosion mechanism efficiently to obtain an optimum replacement plan. The economic consequences of offshore surface flowlines corrosion mechanism are developed in terms of the cost of failure, inspection and maintenance. The optimal replacement strategy is obtained by combining the collective posterior probability of failure and the corresponding rate of corrosion. Risk-based integrity’s assessments use the structural corrosion data which are modelled using the prior probability information. This prior probability information can be restructured to posterior probability using Bayesian Theorem and ASME B31.3 prediction method with the support of the inspection data of the facility. Posterior probability will then be used to estimate the likelihood of the piping failures in the facility. This can then lead to quantify the possible ageing hazards to the facility and identify the replacement interval of the components to avoid hazards. The consequence will be measured by cost as a function of time. This paper focuses mainly on general corrosion on the surface flowlines (topside pipeline).

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Petroleum
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 07 Oct 2015 10:18
Last Modified: 25 Jan 2017 09:35
URI: http://utpedia.utp.edu.my/id/eprint/15694

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...