Decommissioning
This paper identifies opportunities and risks associated with repurposing an offshore oil and gas platform for green hydrogen production. Various technical scenarios were investigated for the case study platform, and their profitability was determined using economic calculations. In addition, all the submodels were compared with standard decommissioning costs for reco…
This paper presents an approach for safe, efficient, and cost-effective legacy well reabandonment.
This paper uses the structural-integrity-management framework to evaluate the current structural integrity of chosen platforms, highlighting their potential and limitations for carbon capture, use, and storage purposes based on in-service assessments.
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This paper presents current advances in the development of a plasma-based milling tool and its use in casing-section milling for P&A. -
This paper presents the challenges and obstacles faced in the use of a new technology for the plugging and deoiling of sections of unpiggable flowlines before decommissioning.
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The global industry is feeling the pain of the oil price plunge, but the UK feels it more acutely. Exploration drilling is at rock bottom levels, the offshore UK Continental Shelf is one of the world’s most expensive from which to produce a barrel of oil, and investment spending is expected to fall.
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In a down market, plugging and abandoning North Sea wells looks like an opportunity. The cost for operators is reduced because the government is paying more than half of the cost of the work, and many service companies hungry for work are offering discounts.
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An ecosystem-based management program is described to assess the potential sensitivities and contribution of the platform as an artificial reef.
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After initial exploration, a prospect deep in the Amazon jungle was declared non-commercial. The authors discuss how the initial project planning contributed to the decommissioning effort by means of life-cycle planning.
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Allseas Engineering’s giant new offshore construction vessel has a new name, prior to its first job. What was once the Pieter Schelte is now the Pioneering Spirit.
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After 10 years, the world’s first cell spar, Anadarko’s Red Hawk, was decommissioned. It remained the only cell spar fabricated and again made history as the deepest floating production unit ever decommissioned in the GOM.
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Many offshore decommissioning costs are higher than necessary because of decisions made during the initial engineering and construction for an oil or gas field.
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With a high demand for plug and abandonment (P&A) of subsea wells in the future on the Norwegian continental shelf, industry is challenged to find alternatives and rigless technologies that can make P&A operation more cost-effective and -efficient.
