SECURITY AND DIVERSIFICATION

OF SUPPLIES WITH THE TWIN

PRIORITIES OF IMPROVING SAFETY

AND ENVIRONMENTAL IMPACT

AGENDA

1.General presentation

2.Site location: connections to Belgium and French gas systems

3.Developing EPC strategy

4.Use of the cooling water discharged from Gravelines nuclear power

plant

5. Improving safety by demonstrating tanks ability to support overfilling

6. Improving safety by using state of the art sea protection

7.Erection status to date

I LNG Tech – S. Ringot I 04 décembre 2012 2

General presentation

1

I LNG Tech – S. Ringot I 04 décembre 2012 3

TERMINAL MAIN CHARACTERISTICS

4

Commercial capacity Storage (m3) Jetty Emission flow rate

13 bcm/y (# 9.2 mtpa) 3 tanks of 190,000 m3

570,000 m3 total 1 0 – 1,9 Mm3/h

Ship sizes:

75,000 – 270,000 m3

Re-gasification technology

ORVs using cooling water discharged

from the nearby nuclear power plant

GRTgaz (French grid)

Fluxys (Belgian grid)

flare 53 ha plateform

I LNG Tech – S. Ringot I 04 décembre 2012 4

DUNKERQUE LNG STRUCTURATION

Dunkerque LNG : EDF subsidiary

Fluxys

• Belgium gas TSO

• Zeebrugge LNG terminal operator

Total

• Main Oil & Gas player

Gaz Opale

• Dunkerque LNG & Fluxys subsidiary

• Dedicated to terminal operation

3 Bcma

10 %

Disponibles

Contrats de réservation de capacité

25% 65%

Pacte d’actionnaires

2 Bcma 8 Bcma

I LNG Tech – S. Ringot I 04 décembre 2012 5

• Dunkerque LNG participates with partners in INNOCOLD, Institute of Low-Temperature Technology, for : • Research topics (materials, industrial safety, process efficiency)

• Training in cold technologies

• Test facility development

I LNG Tech – S. Ringot I 04 décembre 2012 6

Site location : connections to Belgium

and French gas systems

2

I LNG Tech – S. Ringot I 04 décembre 2012 7

CONNECTION OF DUNKERQUE LNG TERMINAL TO FRANCE

• Has triggered 1,2 G€ investment on the

French gas network to connect the terminal

and reinforce the transmission system,

allowing to send out 520 GWh/d (13 bcma)

• GRTgaz is thus laying down a 170 km

pipeline with a diameter of 1200 mm

• The natural gas will not be odorized after

measuring and before being piped into the

transmission system

• For the first time in France,

a no odorized pipeline: a first step towards a

wider no odorized gas transmission system in

France ?

8

GRTgaz

I LNG Tech – S. Ringot I 04 décembre 2012 8

CONNECTION OF DUNKERQUE LNG TERMINAL TO BELGIUM

• Dunkerque LNG pushed GRTgaz and Fluxys

Belgium to extend the pipeline to Belgium and

thus create a direct connection of the terminal to

Belgium

• In an European first, a new concept: a single

Fluxys contract for cross-border capacity

between Dunkirk terminal and the Belgian

system

9

• GRTgaz and Fluxys Belgium will lay down a nearly 100 km pipeline offering thus a 8 bcma capacity

from France into the Belgian system on a firm basis

• The new capacity is expected to be ready for use by late 2015, to coincide with the commissioning of

the LNG terminal in Dunkirk

Dunkerque LNG terminal offers through a direct connection to 2 major markets,

a gateway to supply gas to NW Europe

I LNG Tech – S. Ringot I 04 décembre 2012 9

Developping EPC strategy

3

I LNG Tech – S. Ringot I 04 décembre 2012 10

EPC STRATEGY

• Reach a cost « As Low As Possible » is a common goal for all

project developers

• Classical EPCC contracts « all in one », despite some real

avantages, suffers

• A limitation of competition (number of Tanks manufacturers / number of

engineering compagnies)

• Mixing very different activities within only one contract (severability,

liabilities)

• A « huge » amount, among wich any claims seems « so little »

• Dunkerque LNG choice was to split on three homogenous

contracts : • Process, throught an engineering compagny :

• Tanks, throught a consortium :

• Tunnel, also throught a consortium :

I LNG Tech – S. Ringot I 04 décembre 2012 11

TSLNG

INDUSTRIAL ORGANISATION

Dunkerque LNG GPMD

GRT gaz Département

Grands Projets

COFIVA : EDF Ingénierie

SOGREGAZ,…

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GRTgaz

ARCADIS

Maîtrise

d’ouvrage

Maîtrise

d’œuvre

Réalisation

Réseaux Terminal méthanier Installations portuaires

I LNG Tech – S. Ringot I 04 décembre 2012 12

Use of the cooling water discharged from

Gravelines nuclear power plant

4

I LNG Tech – S. Ringot I 04 décembre 2012 13

Reach a « 0 CHG » emission goal

• Zero CHG terminal was a major objective of Dunkerque project

since the begining

• First decision was to collect every emission of LNG and gas to

flare systems • TSV and PSV on every lines

• ORV and Tanks (hight flow-rate) are collected throught a specific system

• Second challenge was to face the sea-water temperature in

winter (-4°C as a minimum) : • Dual system (ORV / SCV et ORV / sea-water heater) has been designed

• A tunnel solution, from Western to Eastern part of harbour, associated

with ORV, has been designed

• Economical comparison has been carried out

• TUNNEL (5km) was the optimum solution

• Tender result has confirmed this choice

I LNG Tech – S. Ringot I 04 décembre 2012 14

OVERVIEW OF TUNNEL

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FULLY BORED IN FLANDER CLAY

Terminal platform

(+10 m CMG)

Tunnel (-40 m CMG)

Exhaust pit (Ø 16m)

CNPE pits

I LNG Tech – S. Ringot I 04 décembre 2012 16

GRAVELINES POWER : WATER INTAKE

Sea-water

intake (during

unit

maintenance)

inlet pits

EXHAUST PIT : D-WALL OVER 65 METER DEPTH

• Main challenge was the verticality, with a requested deviation

of less than 260 mm at -65 m from top.

• The result is better than

110 mm

• Including for the part

digged in clay (30 m)

I LNG Tech – S. Ringot I 04 décembre 2012 18

EXHAUST PIT : D-WALL OVER 65 METER DEPTH

• Waterstop CWS welding technique was used at -55m (first of a

kind)

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Improving safety by demonstrating tanks ability to

support overfilling

5

I LNG Tech – S. Ringot I 04 décembre 2012 20

TANK ABILITY TO SUPPORT OVERFILLING

• French regulation request that the consequences of « any

danger that cannot be demonstrated as impossible » must be

studied in detail

• Despite all the safety barriers, an overfilling cannot be

qualified of « impossible »

• Tank design has been slightly modified to take into account

this accidental case

• This has been achieved by designing a frangible dome roof • The roof is set to fail at a predetermined over pressure,

• The slab and wall are set to remain structurally able to hold the liquid

I LNG Tech – S. Ringot I 04 décembre 2012 21

SEQUENCE OF EVENTS

t=0: start of overfilling

From 0 to 40 s after start of overfilling:

Total evaporation of LNG in contact with the

warmer elements of the annular space

Internal gas pressure increases quickly

dome frangibility happens at 757 mbarg (safe

margin / operation : 2.5 x design pressure)

I LNG Tech – S. Ringot I 04 décembre 2012 22

DESCRIPTION OF HOW IS TANK FRANGIBILITY ACHIEVED (1/4)

Overview of dome roof structure arrangement

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DESCRIPTION OF HOW IS TANK FRANGIBILITY ACHIEVED (2/4)

Welds failure happens first

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DESCRIPTION OF HOW IS TANK FRANGIBILITY ACHIEVED (3/4)

Welds failure leads to large displacement

P2 = 757 mbarg weld failure

Tension redistributed in rebars

Rebar plastification; large rebar deformation

Separation dome / rafter

I LNG Tech – S. Ringot I 04 décembre 2012 25

DESCRIPTION OF HOW IS TANK FRANGIBILITY ACHIEVED (4/4)

P2 = 757 mbarg weld failure

Tension redistributed in rebars

Rebar plastification; large rebar deformation

Separation dome / rafter

Cracking of dome

Gas flow => overpressure evacuated

Large displacements leads to dome cracking

I LNG Tech – S. Ringot I 04 décembre 2012 26

Improving safety by using state of the art

sea protection

6

I LNG Tech – S. Ringot I 04 décembre 2012 27

STATE OF THE ART SEA PROTECTION

• During the 1990’s, and beginning of 2000’s, several bad

weather conditions leads to industrial damage in France

• LNG Terminal took into account sea-water protection from the

early design, regarding : • Static level of plateform,

• Wave protection.

• Static protection was achieved with a plateform level of +10 m

CMG (Gravelines Coastal Level), including some provision for

climate change

• Methodology for wave protection is not define nor requested

by regulation or standard.

I LNG Tech – S. Ringot I 04 décembre 2012 28

DEFINITION OF PROJECT CRITERIA

• Criteria for dike design : • Stability for W100 / L100 (stands for 100 years return period)

• Limited (less than 5%) disorders for W100 / L1000

• No overtopping for W10 / L10 (stands for 10 years return period)

• Additionnal protection (sea walls) have been designed to

obtain a level of protection defined per : • a wave climate of W100 / L100

• a protection level :

• LNG pipes : no over-topping

• Gangways… : < 3 l/s/ml

• Roads : 10-50 l/s/ml

• Protection efficiency has been checked under W100 / L1000 wave

climate.

I LNG Tech – S. Ringot I 04 décembre 2012 29

SPECIFICATION FOR SEA PROTECTION

I LNG Tech – S. Ringot I 04 décembre 2012 30

RESULTS

DIKE

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Erection Status to date

7

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DUNKERQUE WESTERN HARBOUR

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21 octobre 2007

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16 septembre 2011

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9 décembre 2011

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20 avril 2012

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25 mai 2012

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24 août 2012

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27 septembre 2012

I LNG Tech – S. Ringot I 04 décembre 2012 40

TERMINAL

MÉTHANIER

DE DUNKERQUE

THANKS FOR YOUR KIND

ATTENTION