Offshore installation operations in Arctic waters

Igor Kopsov , Region Manger – SURF Russia and Kazakhstan

Footer can be customized2

Table of contents

1. Offshore operations in remote and harsh environment – Snow White (Norway)

2. Offshore operations in ice – Sakhalin II

Offshore operations in remote and harsh environment –Snow White (Norway)

5 Footer can be customized

6

Technip Offshore Norge - Snøhvit Experience EPCI Contract for Statoil

Tie-back of Subsea Wells to LNG Plant Water Depth : 18 to 445 m Scope of Work Construction and Installation of : 20km 14” 13% Cr infield lines 150km 8” CO2 line 300km 4” MEG / Service lines 160km main umbilical 50km infield umbilicals

and cables In-field installation work

7

It’s a beautiful place far, far away…

8

… and its beauty can be misleading

9

Snøhvit Main Challenges

Far north Long / many transits

Solution: construction of the special pipeline transportation barge

Logistics 160 reels of coiled tubing etc.

Solution: Careful planning and management of change

Far north Weather uncertainties; Polar Lows, less statistics available

Solution: Allowing for quick abandonment of operations

Longest umbilical ever installed (approx. 150 km) Weather unrestricted

Solution: development of special standby methods insuring product safety in up to 10 year storm conditions

10

Snøhvit – flowline transportation logistics Challenge : Very long distance from pipeline fabrication

site in Orkanger to Snøhvit field Very large scope of transportation, long

flowlines >450 km of 4” / 8” / 16”

Excessive transit times for pipelay vessel Apache

Solution Barge mounted horizontal reels Efficient flowline fabrication

Result – more than 90 days of pipelay vessel saved

Orkanger

Oslo

Snøhvit

11

Snøhvit – flowline transportation logistics HORIZONTAL REEL CONCEPT

Objectives : to save Pipelay Vessel transit time to allow pipeline fabrication to take place at existing facility

Capacity of each reel : 3200 T of product ~150 km of 4” rigid pipe ~45 km of 8” rigid pipe

2 reels mobilised on standard92 x 30m barge

Introduction of new pipeline transportation scheme allowed Technip to win the tender

13

Snøhvit – implementation of plans Change of plans 8” CO2 flowline Due to Apache delays and clashes with other projects the

installation of the 8” line was subcontracted to Subsea7 with pipelay vessel Skandi Navica Change of vessel trip program Pipeline load out site moved from Hammerfest to Tromsø

4” MEG / Service lines Due to late delivery of 4” coiled tubing and unsuitable site at

Hammerfest all activities were moved from Hammerfest and Orkanger to Tromsø New fabrication line including welding stations, NDE, coating,

straightener was established in Tromsø Loadout to barge and from barge to lay vessel performed in

Tromsø

Ability to mange the change and adjust the plans insured successful completion of the project

Offshore operations in ice regions – Sakhalin II

20 Footer can be customized

21

Sakhalin II

22

Project case - Sakhalin II subsea operations

22Title of presentation in Header and Footer

Sakhalin II – 1999 SALM subsea flowline repair

Molikpaq and 100yr wave

Yamashiro Pipe Lay Barge in storm

Repair

23 23Title of presentation in Header and Footer

Project case - Sakhalin II Winter season operations – “Constructor” diving work

Getting there - vessel Vessel Transit CSO Constructor Mobilized out of Galveston ,Texas ,USA Sailed south through Panama Canal Sailed across the Pacific to Wakanii, North of Japan.(Dive crew joined vessel) Sailed to Yuzhno-Sakhalinsk to clear customs Sailed to Pilton-Astokhskoye field in Sea of Okhotsk

• 35 days Total

25

Getting there - personnel Personal Travel Flight Paris –Tokyo Overnight Tokyo Flight Tokyo – Hokkaido (North Japan) Flight Hokkaido- Yuzhno-Sakhalinsk Overnight Stay in Yuzhno-Sakhalinsk Fast train (14hrs) Yuzhno-Sakhalinsk –

Nogaliki (North Sakhalin)

26

Two days stay in Nogaliki due to fog offshore Flight back to Yuzhno-Sakhalinsk to catch

supply boat to Vessel (bad weather in harbour) Another overnight stay in Yuzhno-Sakhalinsk Flight back to Nogiliki Flight out to Molikpaq Basket transfer to CSO Constructor Total 7 Days

·

·

27

Sakhalin diving operations in ice

Arctic on ice

28 Footer can be customized

29

Subsea projects – Non-engineering challengesYear 2013

Suppliers

► Difference in business cultures

► Contract discipline

Legal framework

► Complicated custom rules

► Complex taxation system

► Additional certificationLogistics

► Personnel boarder crossing

► Remoteness► Lack of support

infrastructure

30

Subsea projects – Non-engineering challengesYear 2016

Low oil price

Politics

www.technip.com

Thank you

Technip in NorwayTechnip at Sakhalin