Arctic Safety Kjell-Gunnar Dørum Petroleum Safety Authority. Stavanger, Norway. Sigurd R Jacobsen. Petroleum Safety Authority.

Transkript

1 Arctic Safety 2018 Petroleum Safety Authority Kjell-Gunnar Dørum Petroleum Safety Authority Stavanger, Norway Sigurd R Jacobsen Petroleum Safety Authority Stavanger, Norway

2 Contents Background Projects SINTEF Challenges, measures and solutions Proactima Develop evaluation method, phase 1 Apply evaluation method, phase 2 Results Conclusion

3 Background White Paper, Meld. St. 36, Opening of Barents Sea South East NORTH projects PSA Knowledge and awareness Winterization Many solutions and measures Many guidelines and standards

4 Site Specific conditions Requirements - efficiency Temperature Solution Wind Solution Solution Operation envelope Precipitation Solution Solution

5 Objective Study winterization issues, measures and solutions and prevent harm to health, safety and the environment Provide an overview of known (applied) solutions and measures for the winterization of facilities operating in the Barents Sea Develop method to evaluate effect of winterization measures effectiveness, strengths or weaknesses of a solution or measure Apply method to all identified solutions and measures Limitations Covers areas opened for petroleum activities in the Norwegian sector of the Barents Sea

6 Winterization projects Identify issues and measures Efficiency of measures METHOD Evaluate efficiency RESULTS

7 SINTEF report - method Review of 7 winterization manuals from production and drilling operators Review of available standards, guidelines and publications Project team's experience of winterization of drilling and production units

8 Results - main challenges Main challenges Icing and snow on exposed surfaces Freezing of fluids and liquids in pipes and tanks Exposure of people to low temperatures Causes Icing Snow Low temperatures Main issue Specific issue (solutions/measures 186) Icing Snow Low temperatures A1 Icing/snow on structures/platform decks/laydown areas (15) A2 Icing/snow on general equipment (14) A3 Icing/snow on safety critical equipment (19) A4 Icing/snow on evacuation means (13) A5 Icing/snow in air intake/-exhaust and tank-vents (10) A6 Sea ice/slush seawater intakes (4) A7 Falling ice and snow (15) B1 Snow and ice on escape and transport (19) B2 Snow and ice on helideck (8) B3 Snow and ice in deck drainage (6) C1 Material and equipment characteristics (3) C2 Freezing of fluids in pipes and hoses (13) C3 Freezing of fluids in tanks and containers (12) C4 Freezing of lubrication oils/hydraulic oils/fuel (6) C5 Condensation in compressed air systems (4) C6 Condensation in HVAC systems (4) C7 Personnel exposure for low wind chill temperatures/ weather (21)

9 Results - issues and measures Main issue Specific issue (solutions/measures 186) A1 Icing/snow on structures/platform decks/laydown areas (15) Icing Snow Low temperatures A2 Icing/snow on general equipment (14) A3 Icing/snow on safety critical equipment (19) A4 Icing/snow on evacuation means (13) A5 Icing/snow in air intake/-exhaust and tank-vents (10) A6 Sea ice/slush seawater intakes (4) A7 Falling ice and snow (15) B1 Snow and ice on escape and transport (19) B2 Snow and ice on helideck (8) B3 Snow and ice in deck drainage (6) C1 Material and equipment characteristics (3) C2 Freezing of fluids in pipes and hoses (13) C3 Freezing of fluids in tanks and containers (12) C4 Freezing of lubrication oils/hydraulic oils/fuel (6) C5 Condensation in compressed air systems (4) C6 Condensation in HVAC systems (4) C7 Personnel exposure for low wind chill temperatures/ weather (21) A1 Icing, snow on Solutions/Measures structures, platform decks/ laydown areas A1-1 Plattform orientation/layout A1-2 Manual removal with mechanical equipment A1-3 Steam (Stationary or portable units) A1-4 Ice-phobic coatings A1-5 Heating medium (WHRU) A1-6 Heat tracing A1-7 De-icing chemicals (environmental friendly) A1-8 Periodic inspection A1-9 Electric fans A1-10 Heat generators A1-11 Diesel heaters A1-12 Flushing/high pressure flushing with hot water A1-13 Snow removal with truck A1-14 Salting A1-15 Flushing with seawater (south in the Barents Sea) A1 - Known solutions and measures for icing/snow on structures/ platform decks/ laydown areas

10 Proactima (phase 1) Develop method for evaluation «One pager» evaluation for each measure Effect of the measure given temperature, wind and precipitation Effect of the measure on energy consumption given temperature, wind and precipitation Effect of the measure on cost investment and operating cost Vulnerability of the measure operational and organisational Tiltak B2-4 Avisingsutstyr, varmekabler/tråder Kategori Beredskap Hovedproblem B Is/snø akkumulering på strukturer og flater Sårbarhet for operasjonelle og organisatoriske forho 1 Delproblem B2 Ising og snø på helikopterdekk KM Virkning > 20 m/s 5 God effekt Brukbar effekt Noe effekt Ingen/liten effekt Ingen/liten effekt Noe effekt >20 mm/døgn Svært god effekt Brukbar effekt Noe effekt Ingen/liten effekt Ingen/liten effekt Brukbar effekt Svært god effekt Brukbar effekt Brukbar effekt Noe effekt Noe effekt God effekt Svært god effekt God effekt Brukbar effekt Noe effekt Noe effekt God effekt Svært god effekt God effekt God effekt Brukbar effekt Brukbar effekt Svært god effekt (-5) (-5) - (-10) (-10) - (-20) < (-20) Nedbør (mm/døgn) Temperatur (grader C) Effekt på energiforbruk Vind m/s Vind m/s > 20 m/s 5 Noe påvirkning Høy påvirkning Svært høy påvirkning Svært høy påvirkning Svært høy påvirkning Noe påvirkning Moderat påvirkning Moderat påvirkning Svært høy påvirkning Svært høy påvirkning Noe påvirkning Moderat påvirkning Moderat påvirkning Moderat påvirkning Høy påvirkning Noe påvirkning Moderat påvirkning Moderat påvirkning Moderat påvirkning Høy påvirkning 0 1 Noe påvirkning Moderat påvirkning Moderat påvirkning Moderat påvirkning Høy påvirkning (-5) (-5) - (-10) (-10) - (-20) < (-20) Temperatur (grader C) Tiltakskost - Kategori Investering Drift Høy Høy Kommentar, fritekst Mye nedbør kan kreve f.eks manuell fjerning i tillegg til varmetråder

11 Apply method (phase 2) Evaluation of all identified measures and solutions will be performed Qualitative evaluation by work group comprising experienced proffessionals «One pager» for all identified measures and solutions Document result of evaluations Report expected 3Q 2018 Plan to publish report on PSA website 4Q 2018

12 Conclusion Work so far indicates that: a large variety of solutions and measures are available for each winterization issue there may be a challenge to find the optimal combination of solutions and measures for different conditions at specific locations It appears that identified measures and solutions, technical, operational and organizational, ensure safe and efficient operations in the Barents Sea

13 Report (SINTEF) can be downloaded from: Thank you for your attention

14 Results - Operational and organisational measures Competence and training education and training in proper use of winter technology defensive behaviour with respect to falling ice and slippery surfaces Stop work Essential equipment out of order, slippery work areas or potential for falling ice and snow work should only be performed when safe and normal working conditions are in place Power and heating Ensure sufficient power and heat for winterization measures, e.g. heating, HVAC, process heat, etc. Inventories of consumables Ensure sufficient inventories of consumer articles related to winterization and operation before each winter season Checklists for inspections before and during winter season, secure areas and equipment when temperature drops towards freezing when low temperatures are expected, the platform management should go through planned measures for inspection and action. Responsibility for various activities, areas and checklist should be clear.

15 Results - relevant standards and guidelines Publication DNVGL-OS-A201 (2015) Title Winterization for cold climate operations IMO Polar Code (2016) ISO 19906:2010 Lloyd s (2015) ABS (2016) NORSOK S-002:2004 (Draft ed. 5, Sept 2015) ISO/DIS (2016) International code for ships operating in polar waters Petroleum and natural gas industries - Arctic Offshore Structures Provisional Rules for the Winterisation of Ships Guide for vessels operating in low temperature environments Working environment Two year multi client industry project (2013) Arctic Operations Handbook Petroleum and natural gas industries Arctic operations Working environment