Decommissioning
This paper reviews a proof-of-concept project in which surplus casing pipes were used in the fabrication of purposefully designed artificial reef structures for the enhancement of biodiversity and commercial fisheries.
ABL’s Australia unit will provide marine warranty survey services to support the first phase of Esso’s decommissioning campaign, which aims to recycle 95% of the 60,000 tons of offshore structures targeted for removal.
Despite a 2.8% drop in liquefied natural gas exports in 2025 because of lost market share in China, Australia anticipates a 2026 rebound as new North West Shelf capacity comes online. Meanwhile, East Coast operators brace for a tsunami of wells entering the decommissioning pipeline and potential energy shortfalls necessitating LNG imports.
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This study used ultrasonic logging to evaluate reference barrier cells constructed with known defects. The cell concept was developed with an emphasis on low cost and ease of use. -
After being acquired in 2019, the Well-Safe Guardian semisubmersible was extensively overhauled and upgraded. Fugro is the second company to be awarded work this year on the asset.
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Ardyne’s North Sea long-term contracts were for 175 wells with possibly more to follow, while Allseas contract is for removal and disposal for the Valhall complex.
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The partnership will fund research projects that aim to improve the understanding of the environmental impacts of decommissioning and provide guidance on best options from an environmental perspective.
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Developing an asset requires key investment decisions to be made early in the process, and as a result, some critical cost evaluations—such as abandonment—are often ballpark estimates. Adjusting the parameters for evaluating these costs can lead to more-accurate project valuations.
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The complete paper describes the potential global scientific value of video and other data collected by ROVs.
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Across the West, thousands of oil and gas wells sit idle on federal lands, and many are orphaned with the companies that drilled them now defunct. These orphaned wells can pose environmental and safety hazards, but, as critics note, the Bureau of Land Management does not have a good way of tracking
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Repsol has awarded Allseas an EPRD contract for the removal, transfer, load-in to shore, and disposal of its Gyda platform in the Norwegian North Sea. The contract covers the 18,000-ton topsides and 11,200-ton jacket, along with an option for reinstallation on another field.
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With production declining and a nearby terminal closed, UK authorities have given the nod for decommissioning to begin on the aging North Sea gas field. Perenco has been in operation since 1992, with Perenco taking over as operator from BP in 2003.
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The decision comes a year after Neptune stopped production from the North Sea gas field, and 4 months after it submitted decommissioning plans to the UK authorities.
