Assessing the risk of NORM scale to marine biota from offshore oil and gas decommissioning

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dc.contributor.authorCreswell, Ten_AU
dc.contributor.authorApte, Sen_AU
dc.contributor.authorWong, HKYen_AU
dc.contributor.authorBrown, Sen_AU
dc.date.accessioned2023-04-05T04:55:53Zen_AU
dc.date.available2023-04-05T04:55:53Zen_AU
dc.date.issued2020-10-19en_AU
dc.date.statistics2023-02-02en_AU
dc.description.abstractSuccessful decommissioning of offshore oil and gas infrastructure requires an effective and safe approach to assessing and managing chemical and radiological residues. Scale residues frequently accumulate on the interior surfaces of pipes and other structures, and may persist long after extraction operations have ceased. Scale materials can consist of a range of metal contaminants (including mercury), as well as naturally occurring radioactive materials (NORM). In newer infrastructure, the scale is cleaned routinely, and becomes a waste product. The persistent nature of ‘NORM scale’ can result in a radiological dose to the organisms living on, or near an intact pipeline. Eventually, pipe corrosion could lead to metal and radionuclide contaminants being accessible to the surrounding benthic environment, where bioaccumulation and subsequent ecotoxicological effects from the chemical and radiological properties of the scale could occur. This presentation describes a multi-phase approach to assessing the ecological impacts of pipeline scale in order to assist operators with their plans for decommissioning offshore infrastructure. Recent results from pipeline scale testing will be discussed.en_AU
dc.identifier.citationCreswell, T., Apte, S., Wong. H., & Brown, S. (2020). Assessing the risk of NORM scale to marine biota from offshore oil and gas decommissioning. Presentation to the International Conference on Management of Naturally Occurring Radioactive Material (NORM) in Industry, 19-30 October 2020, IAEA Headquarters, Vienna, Austria. Retrieved from: https://conferences.iaea.org/event/206/contributions/16751/en_AU
dc.identifier.conferenceenddate30 October 2020en_AU
dc.identifier.conferencenameInternational Conference on Management of Naturally Occurring Radioactive Material (NORM) in Industry,en_AU
dc.identifier.conferenceplaceVienna, Austriaen_AU
dc.identifier.conferencestartdate19 October 2020en_AU
dc.identifier.urihttps://conferences.iaea.org/event/206/contributions/16751/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14795en_AU
dc.language.isoenen_AU
dc.publisherInternational Atomic Energy Agencyen_AU
dc.subjectDecommissioningen_AU
dc.subjectOffshore platformsen_AU
dc.subjectResiduesen_AU
dc.subjectGaseous wastesen_AU
dc.subjectMercuryen_AU
dc.subjectPipelinesen_AU
dc.subjectMetalsen_AU
dc.subjectMaterialsen_AU
dc.titleAssessing the risk of NORM scale to marine biota from offshore oil and gas decommissioningen_AU
dc.typeConference Presentationen_AU
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