Concrete Structures - Aker Solutions

The new era of concrete platforms 

an exciting adventure 

Bjørn Gundersen 

Executive Vice President 

Aker Solutions 

© 2010 Aker Solutions part of Aker

The new era of concrete platforms 

1. What is a Concrete Structure? 

2. Proud history 

3. Promising future 

4. Ongoing projects 

5. Technological developments 

6. Summing up 

Slide 2 


What is a Concrete Substructure ? 

Concrete structures provide 

numerous potential benefits: 

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● 

● 

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● 

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Integrated oil storage 

Significant local content 

Robustness to meet arctic 

environmental challenges 

Support large topside weight 

Minimum maintenance 

Low lifecycle cost 

Installation independent of heavy 

lift vessel availability 

Slide 3 


Mechanical Mechanical Outfitting Outfitting 

Base Oil 

Utility Caisson 

Sea Water 

Inlet / Return 

Conductor 

Volume 

Sea Water Pump 

Caisson (1 – 4) 

Risers 

Fire Water 

Pump # 3 

Row Diesel Spare 

Pump Caisson # 3 



Base Oil Pump 

Caisson # 1,2 

Sea Water 


Diesel Tank 

Row Diesel Tank 

Utility Caisson # 1 

Base Oil 

Tank 

Sea Water 

Inlet Return 

J-Tubes 

Fire Water 

Water Ballast 

System 

Grouting 

System 

Sea Water 


Fire Water 

Sea Water 

Return Caisson 



J-Tube for 

Electrical Cable 

Non Processing 

Monitoring J-Tube 

Raw Diesel 


Slide 4 


Construction Site with Casting Basin (dry dock) 

Slide 5 


Proud History – world leader in marine concrete structures 

■ 

■ 

■ 

■ 

■ 

■ 

■ 

World leader in marine 

concrete structures for 

oil and gas field 

developments 

First EPCI delivery was 

Beryl A Condeep in 

1975 

40 years of 

international Concrete 

experience 

Lead contractor in most 

of the major Concrete 

projects world wide 

Pioneered the 

development of high 

strength concrete for 

offshore applications 

Introduced skirt piling 

for Concrete soft soil 

conditions 

Introduced the Ice 

Abrasion Resistant 

Concrete for arctic 

environment 

9-Mar-11 

Slide 6 


Concrete Structures - from North Sea to new Continents 

Historical and ongoing GBS’s 

Current Prospects 

9-Mar-11 

Slide 7 


Concrete structures competitive 

for Arctic Environment: 

● New remote locations 

● Integrated oil storage 

● Robustness to meet arctic 

environmental challenges 

● Support large topside weight 

● Installation independent of 

heavy lift vessel availability 

● Minimum maintenance 

● Low lifecycle cost 

● Significant local content 

Slide 8 


HOUSTON 

OSLO 

ARKHANGELSK 

SAINT-PETERSBURG 

MOSCOW 

VLADIVOSTOK 

YUZHNO-SAKHALINSK 

Sakhalin I: Strong project execution, local value creation 

Exxon Neftegaz Ltd 

60 Mechanical Systems & 50.000m3 Concrete 1500 people working 24/7 (rotating basis) 

A ERPSCI Contract 

Geography: Stretches over 16 time zones 

Zvezdochka Eng. 

■ Engineering 

MAOS 

Civil Engineering 

Russian regulatory expertise, 

certification and procurement 

support 

Client 

ENL 

■ Regulatory 

■ Procurement & Subcontracting 

■ Site Development 

■ Fabrication & Construction 

EMDC 

Client Support 

Worley Parsons 

Topside Engineering 

AET 

GBS Engineering, 

Procurement and Project 

Management 

Krylov 

Russian compliance for 

Marine and Mechanical 

Outfitting 

VNIIG 

ACR 

Legal, Commercial and 

HR support 

Russian Compliance 

for concrete and 

geotechnical 

engineering 

Daewoo 

Topside fabrication 

ACR 

GBS Construction, 

Procurement and Project 

Management 

VOSTCO Yard 

Landlord, 

Construction Site 

development 

■ Installation / Marine Operations 

7 h. 2 h. 7 h. 

Capital markets day 9 December 2010 

Slide 10 


Sakhalin 1 A-D GBS – ready for topslab pouring 


How to achieve success? 

on a ERPSCI project 

in split location 

9 time-zones away from “home” 

a lot of hard work, experience, execution model, team spirit ? 

or magic ? 

Slide 12 


The Concrete Renessance future looks good 

Strategic focus on arctic climates and LNG 

Yamal LNG 

Scarborough LNG 

Natuna 

■ 

■ 

■ 

Offshore oil & gas platforms worldwide, 

focusing on harsh environments (Canada, 

Russia, others) 

Offshore LNG developments worldwide (i.e. 

Australia and Russia) 

Floating concrete concepts i.e. Natuna 

White Rose GBS 

Slide 13 


Technological Developments 

● Environmental/Regulatory challenges 

● Ice Abraision 

● Arctic GBS LNG 

● Arctic Driller 

Slide 14 


GBS (Gravity Base Structure) – Regulatory Leadership 

Our Actions 

Managing Permits, Approvals and Licenses (SRO) without causing Construction delays will satisfy 

the Ultimate Client: Russian Federation Authorities 

Pre-SEER 

Concurrences 

Federal 

SEER Process 

Pre-SER 

Concurrences 

SER 

Process 

Sep-09 

Oct-09 

Nov-09 

Dec-09 

Jan-10 

Feb-10 

Mar-10 

Apr-10 

May-10 

Jun-10 

Jul-10 

Aug-10 

Sep-10 

ERA Support to Concurrence Process Russian 

Updates to Proekt for SEER submittal 

Holidays 

SOA NRC 

Nogliki City District 

Local 

SakRybVod 

Sak-Kuril (Dept of FFA) 

VNIRO 

TsUREN 

Fed. Fisheries Agency 

Submit/Prep SEER Invoice/Register 

SEER Process 

Fed RTN 

SEER Approval 

Final SEER Conclusion/Order 

ERA Support to SEER Process 

SO Culture Department 

Sakh RPN 

SO Dept of Forests & Protected Areas 

ERA Support to Pre-SER Process 

Develop / Prepare additional Project Documentation to support SER process 

Prep SERB Commencement Order/ Invoice 

SER Process (90 days) 

Fed GGE 

SER Approval 

Prepare & Issue GGE SER Conclusion 

Obtain 

ERA Support to SER Process 

Construction 

Permits 

Results 

• GBS Proekt SEER/SER concluded 

• No delays caused by Regulatory 

• 70 out of 120 permits obtained 

• Hands on Experience in Russia 

• Connecting local people 

• Russian Content has priority 

Regulatory and Quality 

alignment with 

Local Authorities 

Regulatory targets 

being on Schedule 

Slide 15 

SRO membership for 

Aker Contracting Russia 


Arctic Conditions - Design Challenges 

■ Winterization to -40F 

■ Drifting ice ridge loads on GBS and 

pipeline burial depth 

■ Concrete design and construction for an 

arctic environment with high seismic 

activity 

■ High focus on environmental issues in a 

sensitive area, e.g. grey whales protection 

■ Ice Abrasion Resistant Concrete 

Lun-A Platform at offshore location (Sakhalin-2 Project) 

Photo: SEIC (Sakhalin Energy Investment Company) 

Slide 16 


Ice conditions in sea of Okhotsk 

Drifting Ice: December – 

May 

Velocity: up to 5 knots 

Thickness: up to 2m 

Slide 17 


Drifting ice on concrete 

Abrasion on a vertical 

concrete structure 

Abrasion on upward 

breaking ice cone 

Slide 18 


Response Improve the Ice abrasion resistance in concrete 

● High Strength Concrete 

● Good Bond strength between 

aggregate and cement paste 

● Additional Silica fumea 

● Low w/c-ratio 

● Increased cover zone (10cm) 

Patent applied for 

Slide 19 


How to efficient develop LNG in Arctic Conditions ? 

Slide 20 


Experiences relevant for Remote and Arctic LNG 

Hammerfest barge based 

35,000 tonnes process module 

Hammerfest LNG hook-up 

FLNG 

Various offshore LNG studies 

Adriatic offshore LNG 

design and execution 

Remote 

Arctic LNG 

plant 

GBS based LNG solutions 

Sakhalin 1 & 2 GBSs 

Arctic GBS based offshore LNG 

Slide 21 


Response – GBS based LNG plant in arctic conditions 

Some issues 

■ 

■ 

■ 

Nearshore GBS LNG: 

● New solution 

● Maximize construction execution 

in temperate location 

● Minimize hook-up at site 

● Product berths integrated in GBS 

Onshore: 

● Difficult site conditions 

■ Extensive site prep 

● Construction in remote location 

with harsh environment 

■ Weather and season driving 

construction schedule and cost 

● Ice barriers to protect product 

export quays 

Onshore / offshore combination: 

● Utilize the best of both 

GBS based LNG plant, barge modules, tanks on top. 5-10mpta 

“Shoe box” GBS based LNG plant, large modules, 

integrated tanks – 15mpta 

Slide 22 


How to efficient develop arctic WHP concept 

Slide 23 


CONCEPTUAL RE-THINKING 

FIXED WH GBS MONOTOWERS 

•Minimum Ice load exposure 

•Eliminate need for GBS re-locations 

•Eliminate Subsea Silos 

CONCEPTUAL RE-THINKING - MOBILE TOPSIDE DRILLING FACILITY 

•No tow-to-field Topside weight, allowing slim WH Monotowers 

•Offshore mating by Jack-up mounted onto shaft top. 

•Jack-up legs pulled out of water to offer winter drilling operation 

•Jack-up based topside relocatable to multiple Monotowers 

Slide 24 


Summing up - The new era of concrete platforms 

1. What is a Concrete Structure? 

2. Proud history 

3. Promising future 

4. Ongoing projects 

5. Technological developments 

6. Summing up 

Slide 33 


Copyright and disclaimer 

Copyright of all published material including photographs, drawings and images in this document remains vested in 

Aker Solutions and third party contributors as appropriate. Accordingly, neither the whole nor any part of this document 

shall be reproduced in any form nor used in any manner without express prior permission and applicable 

acknowledgements. No trademark, copyright or other notice shall be altered or removed from any reproduction. 

This Presentation includes and is based, inter alia, on forward-looking information and statements that are subject to 

risks and uncertainties that could cause actual results to differ. These statements and this Presentation are based on 

current expectations, estimates and projections about global economic conditions, the economic conditions of the 

regions and industries that are major markets for Aker Solutions ASA and Aker Solutions ASA’s (including subsidiaries 

and affiliates) lines of business. These expectations, estimates and projections are generally identifiable by statements 

containing words such as “expects”, “believes”, “estimates” or similar expressions. Important factors that could cause 

actual results to differ materially from those expectations include, among others, economic and market conditions in 

the geographic areas and industries that are or will be major markets for Aker Solutions’ businesses, oil prices, market 

acceptance of new products and services, changes in governmental regulations, interest rates, fluctuations in currency 

exchange rates and such other factors as may be discussed from time to time in the Presentation. Although Aker 

Solutions ASA believes that its expectations and the Presentation are based upon reasonable assumptions, it can give 

no assurance that those expectations will be achieved or that the actual results will be as set out in the Presentation. 

Aker Solutions ASA is making no representation or warranty, expressed or implied, as to the accuracy, reliability or 

completeness of the Presentation, and neither Aker Solutions ASA nor any of its directors, officers or employees will 

have any liability to you or any other persons resulting from your use. 

Aker Solutions consists of many legally independent entities, constituting their own separate identities. Aker Solutions 

is used as the common brand or trade mark for most of these entities. In this presentation we may sometimes use 

“Aker Solutions”, “we” or “us” when we refer to Aker Solutions companies in general or where no useful purpose is 

served by identifying any particular Aker Solutions company. 

Slide 34

Concrete Structures - Aker Solutions

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