Sigurd R JacobsenPetroleum Safety Authority

Stavanger, Norway

Kjell-Gunnar DørumPetroleum Safety Authority

Stavanger, Norway

Arctic Safety 2018

Petroleum Safety Authority

Contents

• Background

• Projects• SINTEF

• Challenges, measures and solutions

• Proactima• Develop evaluation method, phase 1

• Apply evaluation method, phase 2

• Results

• Conclusion

Background

• White Paper, Meld. St. 36, 2012-13 • Opening of Barents Sea South East

• NORTH projects – PSA• Knowledge and awareness

• Winterization• Many solutions and measures

• Many guidelines and standards

Site Specific conditionsRequirements - efficiency

Precipitation

Temperature

WindOperationenvelope

Solution

Solution

SolutionSolution

Solution

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

Winterization projects

Identify issuesand measures

Efficiency of measuresMETHOD

Evaluate efficiencyRESULTS

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

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

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)

Snow

B1 Snow and ice on escape and transport (19)

B2 Snow and ice on helideck (8)

B3 Snow and ice in deck drainage (6)

Low

temperatures

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)

Results - issues and measures

Main issue Specific issue (solutions/measures 186)

Icing

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)

Snow

B1 Snow and ice on escape and transport (19)

B2 Snow and ice on helideck (8)

B3 Snow and ice in deck drainage (6)

Low

temperatures

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

structures, platform

decks/ laydown areas

Solutions/Measures

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

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 Kategori Beredskap

Hovedproblem B 1

Delproblem B2 KM

Virkning

> 20 m/s 5 God effekt Brukbar effekt Noe effekt Ingen/liten effekt Ingen/liten effekt Noe effekt >20 mm/døgn 5

10 - 20 4 Svært god effekt Brukbar effekt Noe effekt Ingen/liten effekt Ingen/liten effekt Brukbar effekt 10 - 20 4

5 - 10 3 Svært god effekt Brukbar effekt Brukbar effekt Noe effekt Noe effekt God effekt 5 - 10 3

0 - 5 2 Svært god effekt God effekt Brukbar effekt Noe effekt Noe effekt God effekt 0 - 5 2

0 1 Svært god effekt God effekt God effekt Brukbar effekt Brukbar effekt Svært god effekt 0 1

0 - 5 0 - (-5) (-5) - (-10) (-10) - (-20) < (-20)

1 2 3 4 5

Temperatur (grader C)

Effekt på energiforbruk

> 20 m/s 5 Noe påvirkning Høy påvirkning Svært høy påvirkning Svært høy påvirkning Svært høy påvirkning

10 - 20 4 Noe påvirkning Moderat påvirkning Moderat påvirkning Svært høy påvirkning Svært høy påvirkning

5 - 10 3 Noe påvirkning Moderat påvirkning Moderat påvirkning Moderat påvirkning Høy påvirkning

0 - 5 2 Noe påvirkning Moderat påvirkning Moderat påvirkning Moderat påvirkning Høy påvirkning

0 1 Noe påvirkning Moderat påvirkning Moderat påvirkning Moderat påvirkning Høy påvirkning

0 - 5 0 - (-5) (-5) - (-10) (-10) - (-20) < (-20)

1 2 3 4 5

Temperatur (grader C)

Tiltakskost - Kategori

Investering Drift

Høy Høy

Kommentar, fritekst

Mye nedbør kan kreve f.eks manuell fjerning i tillegg til varmetråder

Vin

d m

/sV

ind

m/s

Nedbør (mm/døgn)

Avisingsutstyr, varmekabler/tråder

Is/snø akkumulering på strukturer og flater

Ising og snø på helikopterdekk

Sårbarhet for operasjonelle og organisatoriske forhold

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

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

Thank you for your attention

http://www.ptil.no/getfile.php/1342058/PDF/NORD/ST8%20Vinterisering.pdf

Report (SINTEF) can be downloaded from:

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.

Results - relevant standards and guidelines

Publication Title

DNVGL-OS-A201 (2015) Winterization for cold climate operations

IMO Polar Code (2016) International code for ships operating in polar waters

ISO 19906:2010Petroleum and natural gas industries - Arctic Offshore

Structures

Lloyd’s (2015) Provisional Rules for the Winterisation of Ships

ABS (2016)Guide for vessels operating in low temperature

environmentsNORSOK S-002:2004

(Draft ed. 5, Sept 2015)Working environment

ISO/DIS 35101 (2016)Petroleum and natural gas industries – Arctic operations –

Working environment

Two year multi client industry project (2013) Arctic Operations Handbook