On the Burst Strength Capacity of an Aging Subsea Gas Pipeline

Author:

Bin Mohd Mohd Hairil12,Woo Kim Dong2,Joon Lee Byeong2,Kim Do Kyun2,Kwan Seo Jung3,Kee Paik Jeom4

Affiliation:

1. Maritime Technology Department, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia;

2. Lloyd's Register Foundation Research Centre of Excellence, The Korea Ship and Offshore Research Institute, Pusan National University, Busan 609-735, South Korea e-mail:

3. Associate Professor Lloyd's Register Foundation Research Centre of Excellence, The Korea Ship and Offshore Research Institute, Pusan National University, Busan 609-735, South Korea e-mail:

4. Professor Lloyd's Register Foundation Research Centre of Excellence, The Korea Ship and Offshore Research Institute, Pusan National University, Busan 609-735, South Korea e-mail:

Abstract

Precise evaluation of the performance of aging structures is particularly essential in the oil and gas industry, where inaccurate predictions of structural performance may lead to significantly hazardous consequences. It is also important to accurately predict the corrosion behavior of pipeline structures used in the production of gas in subsea areas. The effects of pipeline failure due to a significant reduction in burst strength make it hard for pipeline operators to maintain pipeline serviceability. Therefore, the serviceability of ongoing subsea gas pipelines should be assessed according to their burst strength capacities, which should not exceed the maximum allowable operating pressure (MAOP). In this study, the critical part of the corrosion along a 2.4 km pipeline was evaluated using two approaches: an empirical design codes formula and Ansys numerical analysis. The future integrity of the aging pipeline was then assessed to predict its remaining years of service. The results and outcomes of this study will be useful in evaluating pipeline integrity and predicting the remaining service life of aging pipeline structures.

Publisher

ASME International

Subject

Mechanical Engineering,Ocean Engineering

Reference34 articles.

1. The Finite Element Method Analysis for Assessing the Remaining Strength of Corroded Oil Field Casing and Tubing,2006

2. Cosham, A., and Hopkins, P., 2004, “An Overview of the Pipeline Defect Assessment Manual (PDAM),” 4th International Pipeline Technology Conference, May 9–13, Ostende, Belgium.

3. Klever, F. J., Stewart, G., and Valk, C. A. C., 1995, “New Developments in Burst Strength Predictions for Locally Corroded Pipelines,” Proceedings of the 14th International Conference on Offshore Mechanics and Arctic Engineering (OMAE), Vol. 5: Pipeline Technology, June 18–22, Copenhagen, Denmark, pp. 161–173.

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