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Platform conductor integrity management in life extension of ageing offshore wells

Radzakrishnan, Loganathan and Abu Husain, Mohd. Khairi and Mohammad, Roslina and Amrin, Astuty and Mohd. Akmal, Mohd. Akmal (2021) Platform conductor integrity management in life extension of ageing offshore wells. In: 6th International Conference on Civil, Offshore and Environmental Engineering, ICCOEE 2020, 13 - 15 July 2021, Kuching, Sarawak, Malaysia.

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Official URL: http://dx.doi.org/10.1007/978-981-33-6311-3_39


The increase in ageing offshore wells in most of the oilfields in the South China Sea, with their assets exceeding their design life is a challenge faced by operators worldwide. Severe corrosions on the metallic structures of oil wells consisting of the conductor and casings can result in catastrophic events leading to structural collapse. This paper describes the engineering methodology involved in the integrity assessments for platform conductor evaluation using analytical methods to assess the present condition of the conductor/casing assembly based on corrosion inspection data and existing cement elevations. In cases where a physical repair is not possible, recommendations would be made for inspecting the anomaly for signs of worsening, conductor buckling and material degradation. A rehabilitation flow-chart is developed in the repair or replace the decision-making process, hence prolonging the well operating life. It is mainly to provide understanding and guideline for conductor integrity management.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Ageing platform, Conductor, Corrosion, Integrity, Rehabilitation, Structural integrity assessment
Subjects:T Technology > T Technology (General)
Divisions:Razak School of Engineering and Advanced Technology
ID Code:97998
Deposited By: Widya Wahid
Deposited On:14 Nov 2022 17:40
Last Modified:14 Nov 2022 17:40

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