气候变化领域集成服务门户(CCPortal): Impact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea; Norway

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DOI	10.1016/j.marpolbul.2019.110784
	Impact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea; Norway
	Dijkstra N.; Junttila J.; Aagaard-Sørensen S.
发表日期	2020
ISSN	0025326X
卷号	150
英文摘要	The aim of this study is to identify the environmental impact of drill cuttings (DC) released around three wells drilled in 1992, 2000 and 2012 in the SW Barents Sea. Foraminiferal assemblages are studied in cores taken along transects <250 m from wells. Well E-1992 shows no impact of DC on foraminifera indicating that low amounts of released DC limit environmental impact. Impact at wells G-2000 and S-2012, is confined to <30 m, and attributable to smothering of fauna, resulting in low foraminiferal density. We therefore argue that previous monitoring studies, mainly focusing on samples collected >250 m from wellheads, might not capture the full impact of DC. In well G-2000, a recovery layer indicates partial recovery 15 years after DC releases. In well S-2012, no recovery is observed, 3 years after release. Released DC did not result in faunal composition changes. © 2019 Elsevier Ltd
英文关键词	Barents Sea; Barium; Benthic foraminifera; Drill cuttings; Environmental monitoring; Smothering
语种	英语
scopus关键词	Barium; Environmental impact; Infill drilling; Recovery; Rock drills; Barents sea; Benthic foraminifera; Drill cuttings; Environmental Monitoring; Smothering; Well drilling; heavy metal; barium; benthic foraminifera; cutting (excavation); drilling; environmental impact; environmental monitoring; marine pollution; well technology; Barents Sea; benthic foraminifera; concentration (parameter); environmental impact; environmental monitoring; fauna; nonhuman; Norway; offshore oil industry; physical parameters; sediment; chemistry; environmental monitoring; foraminifer; water pollutant; Arctic Ocean; Barents Sea; Foraminifera; Environmental Monitoring; Foraminifera; Geologic Sediments; Norway; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149342
作者单位	Department of Geosciences, UiT The Arctic University of Norway in Tromsø, Postboks 6050 Langnes, Tromsø, N-9037, Norway
推荐引用方式 GB/T 7714	Dijkstra N.,Junttila J.,Aagaard-Sørensen S.. Impact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea; Norway[J],2020,150.
APA	Dijkstra N.,Junttila J.,&Aagaard-Sørensen S..(2020).Impact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea; Norway.Marine Pollution Bulletin,150.
MLA	Dijkstra N.,et al."Impact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea; Norway".Marine Pollution Bulletin 150(2020).