Introduction

Wright, Simon

doi:10.1680/jcien.2017.170.6.2

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…At the end of the lifecycle of any oil and gas platform, decommissioning is required. Decommissioning as a word can be represented by words such as abandonment, removal, or disposal [1][2][3]. Likewise, the completion methods for offshore oil and gas platforms through bringing the seafloor and ocean to their pre-lease stage are known as offshore platform decommissioning [4].…”

Section: Introductionmentioning

confidence: 99%

Environmental Sustainability and Efficiency of Offshore Platform Decommissioning: A Review

Zawawi,

Danyaro,

Liew

et al. 2023

Sustainability

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Malaysia has inherited many aged offshore platforms that have reached their decommissioning deadline. Many platforms need to be detached through subsea processes. Although there are good techniques for this, they are usually costly and necessitate a great deal of post-cut checking to ensure complete detachment. Explosive cutting techniques, on the other hand, are cost-effective and reliable for offshore decommissioning as they ensure complete cutting with little uncertainty. Until 2019, statistics showed that almost 35% of offshore platform decommissioning processes involved the use of explosive materials and other mechanical severance options. The method was reliable and cheap, but it had a large environmental impact. During blasting procedures utilizing pressure waves, many sea animal species are threatened, such as fishes, turtles, and dolphins. Depletion of already scarce fish stocks through the unsustainable use of explosive removal should be prevented by reducing the environmental impact of underwater explosives. Moreover, due to safety hazards, vessel and aircraft movement around the explosion zone is prohibited. Therefore, this paper provides a comprehensive review of using a highly vacuum-sealed pile for the explosion to control and reduce shock wave propagation. This effort appreciates the benefits of the explosive cutting technique and reduces its environmental side effects. Our findings indicate an accurate and clean-cut method serving the efficiency of offshore platform decommissioning as well as environmental sustainability. Finally, recommendations for future perspectives have been provided based on the decommissioning of offshore platforms, such as topside removal, planning, time scale, and optimization of available space.

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Section: Introductionmentioning

confidence: 99%

Environmental Sustainability and Efficiency of Offshore Platform Decommissioning: A Review

Zawawi,

Danyaro,

Liew

et al. 2023

Sustainability

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Systems integration in infrastructure projects: seven lessons from Crossrail

Whyte

Davies

SextonChris³

2022

Proceedings of the Institution of Civil Engineers - Management,

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We propose a systems integration model for the delivery of complex infrastructure projects. We argue that the client is ultimately accountable for systems integration in major projects, setting out the responsibilities to ensure that systems integration is successfully accomplished to achieve desired outcomes. From the Crossrail case, we draw seven lessons for clients, to: 1) manage programme delivery as an integration activity; 2) actively manage systems integration; 3) ensure authority to make decisions; 4) maintain configuration control; 5) plan for a lengthy testing and commissioning phase; 6) appreciate supply chain products may be part of unaligned global R&D and development programmes; and 7) do final integration only when there is something to integrate. Central to our argument is the idea that on such complex projects, the client cannot outsource systems integration and thus needs to recognize they retain accountability, though roles and responsibilities can be assigned to the delivery partner, supply chain, chief engineer and/or contracted systems integration firm. A key question for the client at the outset is how to distribute interface management and systems integration responsibilities while retaining accountability and oversight. Rather than managing through contracts, budgets and schedules, we suggest a changed approach with priority given to managing integration, and contracts, budgets and schedules that support and incentivise this.

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Introduction

Cited by 2 publications

References 10 publications

Environmental Sustainability and Efficiency of Offshore Platform Decommissioning: A Review

Environmental Sustainability and Efficiency of Offshore Platform Decommissioning: A Review

Systems integration in infrastructure projects: seven lessons from Crossrail

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