Part 4.1 thru 4.4 Arctic LNG Plant Constructionen.murmanshelf.ru/files/statoil_seminar_2012/4.1_Construction.pdf · Arctic Weather Conditions Wind –Snow –Ice ... ProjectRequirements

LNG SeminarMurmansk, 15 May 2012

Part 4 Arctic LNG plant construction

• 4.1 – Snøhvit – key facts

• 4.2 – Snøhvit arctic engineering approach

• 4.4 - The Snøhvit puzzle

• 4.5 – Snøhvit LNG plant site construction

Classification: Internal 2012-03-022

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The Arctic Region

Snøhvit

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Snøhvit LNG – Key FactsEurope’s First Baseload LNG Plant

• 4.3 MMTA LNG Production

• Located close to the World’s Northernmost Town - 800 km north of Polar Circle

• Ice Free Shipping Route because of Gulf Stream

• Application of Best Available Technology mandatory for State and Authority Approval

• Energy Efficient MFC® Refrigeration Process

• All Electric Driver Concept

• Emission Control (CO2, NOx) - Use of Aero Derivative LM 6000 Gas Turbines with Low NOx burners- Minimization of Flaring

4.2 Snøhvit arctic engineering approach


The arctic climate challenge

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Arctic Engineering - Definition

Arctic Engineering is an Approach that …

• addresses the specific requirements of arctic Sites for Process Plants

• comprises both - consideration of technical design details due to extreme weather conditions

(temperatures, wind, ice and snow) and - job execution strategies (concepts for pre-assembly, logistics, management of

subcontractors, etc.)

• takes care of the Owner’s expectations regarding Plant Operability, Regularity and Maintainability

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Arctic Engineering – Analysis of Site Specifics

Snøhvit LNG at HammerfestCoordinates: 70° 39’ 48’’

● Location north of the polar circle

● Arctic Weather ConditionsWind – Snow – Ice

● Wind-Chill Factor

● Darkness during Arctic Winter

● Lack of regional infrastructure

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Arctic Engineering – Analysis of Site SpecificsProject Requirements

Development of winterisation specifications for the LNG plant with special focus on operation, maintenance, safety and occupational health.

Ensure required plant regularity during given weather conditions.

Design specifications implemented for:

- Structural Integrity (buildings and structures to withstand snow and ice load)- Equipment Protection (heat tracing, precipitation shielding etc)- Working Environment and Personnel Protection

(wind/snow shielding, protection from falling ice, etc.)- Plant Design Solutions

(redundancy, equipment and material selection, definition of requirements towards suppliers)

- Operational Procedures

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● Winterisation Engineering Study

● Model Study of Wind Conditions

● Icing and Snow Drift Study

● Sea Spray Icing Modelling

● Wind-Chill Index CFD Simulations

● Study of comparable installations

● Metocean Data Gathering

● Model Structures monitored during Winter 2001 / 2002 (webcams)

Front end loading of site specific weather studies and surveys

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● Model Structures monitored during winter 2001 / 2002 (webcams)

Arctic Engineering –Principles for Design and Project Execution

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• Mechanical Design Specifications considering the appropriate loads relevant for the specific site (wind, snow, ice).

• Structural Shielding where necessary to protect operators and equipment (considering explosion load requirements to ensure compatibility with separate analyses).

• Maximum Modularisation and Prefabrication of „Pre Assembled Racks“ (PAR) and „Pre Assembled Units“ (PAU) in order to minimise heavy construction work on site.

• Use of Barge Concept to prefabricate the core of the plant in less difficult climate and shift construction and equipment integration activities to the middle and southern parts of Europe.

• Coordination of numerous construction yards delivering modules and equipment packages to Northern Norway

4.3 The Snøhvit puzzle


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Hammerfest

MassaCadiz

Ferrol Schalchen

Hoboken

BremenZwijndrecht

The Snøhvit Puzzle

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Hammerfest

MassaCadiz

Ferrol Schalchen

HobokenBremen

Zwijndrecht

The Snøhvit Puzzle – String testing

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Hammerfest

MassaCadiz

Ferrol Schalchen

Hoboken

BremenZwijndrecht

The Snøhvit Puzzle – The Barge Concept

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Arctic Engineering – The Barge Concept

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The Snøhvit Puzzle – The Barge transport

The Snøhvit Puzzle – Barge docked


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Hammerfest

MassaCadiz

Ferrol Schalchen

Hoboken

BremenZwijndrecht

The Snøhvit Puzzle – slug catcher

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Hammerfest

MassaCadiz

Ferrol Schalchen

HobokenBremen

Zwijndrecht

The Snøhvit Puzzle – Main Heat Exchanger

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Hammerfest

MassaCadiz

Ferrol Schalchen

HobokenBremen

Zwijndrecht

The Snøhvit Puzzle – Erection of MCHE

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Hammerfest

MassaCadiz

Ferrol Schalchen

HobokenBremen

Zwijndrecht

The Snøhvit Puzzle – Cold box load out

The Snøhvit Puzzle – Cold box dimensions

56 m 2,000 tons

60 m 3,000 tons

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Hammerfest

MassaCadiz

Ferrol Schalchen

HobokenBremen

Zwijndrecht

The Snøhvit Puzzle – Cold box sail away

Presentation title

Presenters namePresenters titleE-mail address [email protected]: +4700000000

www.statoil.com

Documents

Part 4.1 thru 4.4 Arctic LNG Plant Constructionen.murmanshelf.ru/files/statoil_seminar_2012/4.1_Construction.pdf · Arctic Weather Conditions Wind –Snow –Ice ... ProjectRequirements