DNV GL OIL & GAS - ESRI · 2021. 3. 13. · Temporal resolution. Open Water Season: Duration of...
Transcript of DNV GL OIL & GAS - ESRI · 2021. 3. 13. · Temporal resolution. Open Water Season: Duration of...
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DNV GL © SAFER, SMARTER, GREENERDNV GL © 2015
Arctic Risk MapCommunicating Region’s Complex Risk Picture
Øivin AarnesEsri Petroleum GIS Conference. London, Nov. 6th. 2015
9 November 2015
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DNV GL OIL & GAS
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DNV GL Global reach – local competence
400offices
100countries
16,000employees
150years
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Addressing challenges in the oil and gas industry
Safety and environmental
issues
Deepwater and harsh environment
Ageing assets and performance issues
Technology development
Cost pressure and standardization
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The Arctic - taking a broader view
The Arctic is not a uniform environment
There are very different perceptions of risk [in the Arctic]
We wanted to create an interactive map as a platform for transparent discussion and common understanding of risk drivers
The map was to provide insight to the actual physical and biological environmental conditions of the Arctic
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Operating in the Arctic requires adaptation to local conditions
Low temperatures Sea ice and icebergs Marine icing Atmospheric icing Visibility & darkness Remoteness and lack of infrastructure
Reduced satellite coverage Uncertainty in metocean data
Polar lows
Joint probabilities of loads
Vulnerable ecosystems
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Building the Arctic risk map – Approach and methodology
Determine relevant data sources to our analysis
Qualify data with respect to quality, consistency, and reliability
Assemble and integrate data in ArcGIS
Spatial analysis to derive statistics on phenomena and their covariation
– Capture spatial and temporal variation
– Location specific risk analysis
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Screening of data sources
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MyOcean.eu : Arctic Ocean Physics Analysis and Forecast
http://www.myocean.eu/web/69-myocean-interactive-catalogue.php/?option=com_csw&view=details&product_id=ARCTIC_ANALYSIS_FORECAST_PHYS_002_001_a
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Methodology
Raster Processing from source NetCDF files
– Multidimensional Tools
– Make NetCDF Raster Layer
– Multidimensional Supplementary Tools
– NetCDF viewers (Panoply)
Spatial Analysis using Spatial Analyst suite of tools
– Local Toolset (Cell Statistics)
– Conditional Toolset (Con)
– Map Algebra (Raster Calculator)
ArcMap for map authoring
ArcGIS Server Advanced for publishing
– Spatial Server
– Image Extension for Server
– Processing and publishing mosaic datasets
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Arctic Risk Map – Architecture
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A short video (5 minutes)
Arctic Risk Map video
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Risk Indices – Environmental Vulnerability Index (EVI)
Environmental Vulnerability IndexVulnerability towards oil
Calculated score for each EBSA area to reflect:
Species distribution and abundance
Population size and ratio
Red List status (IUCN)
Species sensitivity to oil
Habitat preference and specificity
Ecosystem significance
Activity/life stage
Season
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Risk Indices - Safety and Operability Index
The SOI is based on risk influencing factors such as sea ice, visibility, temperature, distance from SAR resources, etc.
Expressed as an aggregated score for each Arctic region by Month
The principal factors are known to affect safety and operability in these regions
Benchmarked against recognized standards [NORSOK] and risk-level of operations in the Norwegian Sea
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Physical factors included in Safety and operability index
Parameter Description Temporal resolution
Open Water Season Duration of open water season (consecutive days) Annual
Ice Coverage Ice concentration Monthly
Ceiling
Limits for helicopter operation
Monthly
vertical - % of time < 200 m cloud height
Visibility
Limits for helicopter operation
Monthly
horizontal - % of time < 500 m horizontal
SARSearch and Rescue – operational radius, 180 min criteria Fixed
Temperature Design temperature Annual
Days below -20◦ C Number of days per year below -20°C Monthly
Daylight Hours of daylight per day Monthly
Wind speed Monthly max Monthly
Marine icing Overland algorithm Monthly
Wind Chill Index NORSOK Monthly
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Barents Sea – Petroleum licenses, SOI and environmental vulnerability index for July and December
Safety and operability index - July Safety and operability index - December
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Ice extent and water depth may determine rig solution, e.g. comparing Bottom-founded systems to Jackups and Floating systems
The extreme minimum temperature (design temperature) will have impact on the materials selected for rig solutions
Contours are calculated from the NORA 10 dataset for the Barents Sea and showthe extreme lowest temperature with annual probability of exceedance q=10-2
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Arctic challenges:Spotlight on technology: Oil spill response
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Operational window for oil spill response efficiency and capability
Limited and ineffective oil spill response capability in the Barents Sea in February using conventional methods
Oil spill recovery is greatly impaired due to sea-ice, low temperatures, winds and rough seas.
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Maintain adequate level of emergency response
Remoteness and low activity level –helicopter support
Weather/flight conditions – reducedavailability of helicopters
Communication – reduced bandwidth
Joint efforts/collaboration – need to plan for common operations and sharedresources.
Increased activity will increasepreparedness
Important Initiatives:
– SARiNOR
– Barents 2020
– ISO TC 67 – Subgroup 8, Arctic Operation – Escape, Evacuation and Rescue
– Polar code from IMO
2015.11.09
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Strategies for risk mitigation should include a stepwise approach
Technology and operations Collaboration Communication
https://maps.dnvgl.com/arcticriskmap
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SAFER, SMARTER, GREENER
www.dnvgl.com
Thank you for your attention
Øivin [email protected]+47 934 07 321
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