Decommissioning of offshore oil and gas facilities: a comparative study between Malaysia practices and international standards

Kumar, S. and Sidek, M. A. and Agi, A. and Junin, R. and Jaafar, M. Z. and Gbadamosi, A. and Gbonhinbor, J. and Oseh, J. and Yakasai, F. (2021) Decommissioning of offshore oil and gas facilities: a comparative study between Malaysia practices and international standards. In: SPE Nigeria Annual International Conference and Exhibition 2021, NAIC 2021, 2 August 2021 - 4 August 2021, Lagos.

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Regulations for decommissioning are bound by international and domestic regulations. There are numerous decommissioning concepts to choose from, such as complete or partial removal, structure severance options which leave behind shell mounds and drill cuttings. However, in several international regulations there appears to be little clarity and/or opposing ideologies. Malaysia and Thailand have accessible resources for decommissioning legislation or guidelines in South East Asia. Nevertheless, they are differences in the regulations of these countries regarding the legal framework, the technical, financial and environmental framework. In this study, the feasibility of existing framework in decommissioning process of offshore installations or structures in Malaysia was studied and compared with international practices. Decision matrix analysis was used to systematically identify, analyse, and rate the performance of relationships between sets of values and information. Moreover, the scale of decommissioning activities over the next years, the data and information obtained were analysed using descriptive statistics approach. The results indicated that Thailand had the best decommissioning regulations because they have strict regulation in decommissioning. Most of the regulations covering the technical section are similar within all countries studied. Finally, recommendations given are from the aspects of frameworks on in-situ full or partial decommissioning, clarity on liabilities and residual risk management, financial security, residual risk funds, workflow optimisation, information management system, and waste management.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:abandonment, decommissioning regulations, offshore
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:95839
Deposited By: Narimah Nawil
Deposited On:19 Jun 2022 16:19
Last Modified:19 Jun 2022 16:19

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