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Aasta Hansteen Template Installation Presentation @ SubOps August 2015

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Page 1: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Aasta Hansteen

Template Installation

Presentation @ SubOps August 2015

Page 2: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Project development

Agenda

Introduction to EMAS AMC

Introduction to Aasta Hansteen Project

Mobilization

Installation of suction anchors

Installation of template structures

Challenges and timesavers

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EMAS AMC Timeline

Page 4: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

EMAS Group - Our presence and client base

Page 5: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Our Service Offerings

Page 6: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Building Rigid Capabilities: Vessels and Spoolbase

EMAS Marine Base Gulen

EMAS Marine Base Ingleside

Spoolbase Pipelay

Lewek Express

Lewek Constellation

Lewek Centurion

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EMAS Marine Base Gulen

Fabrication hall and equipment

• Fully automatic pipe feed and pipe preparation area with 2 x Beveling stations

• 16 Work stations with motorized automatic pop-up/down rollers

• Stalk rack length: 1020 m

• 220 m fabrication length

• Ample storage capacity in stalk rack

• Integrated Tie-in area

• Adjustable rollers for reeling to Vessel

Fabrication Building

Page 8: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Introduction

Aasta Hansteen Field

WD -1280m

3 Templates installed by EMAS

AMC150 NM

Page 9: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Project History

Project development

Lewek Connector Boa SubC

Page 10: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Mobilization

• Mobilization in Sandnessjøen– Startup Late April 2015– 4 portcalls

Coastbase in Sandnesssjøen Strendene Quay

Page 11: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

3 Suction Anchors 118/106Te 7,5m x 21/18m

Page 12: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

1-slot TTS 112Te, 16x19x12m

Page 13: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

4-slot TTS 180Te, 23X20x12m

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Mobilization and preparations in Sandnessjøen

Preparations

1. Installation of Survey equipment on SA’s 2. Connection of rigging on top of SA’s3. Removing deck boards on BSC

1 st. portcall

1. Time out for safety outside vessel2. Attachment of vessel crane hook to SA rigging (RAT scope)3. Loadout of SA4. Welding to deck

2./3./4th. portcall

1. Handover of CPI (SA) from Statoil2. Loadout and seafastening of grillage3. Loadout of TTS4. Trial lift5. Seafastening

Page 15: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Mob preparations

Page 16: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Time out for saftey

Page 17: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Dropped object sweep

Page 18: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Loadout and welding

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Installation Activities – SA

1. Transit to site2. Setup on DP and pre-survey3. Assesment of weather conditions4. Removal of 50% seafastening5. Attachment of SA rigging to Hook (RAT scope)6. Removal of remaining seafastening7. Overboarding8. Deployment to 1300m9. Self penetration 4-8m10.Closing of hatches11.Suction12.Final Survey13.Removal of rigging14.Removal of survey spread

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Installation

Page 21: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Installation

Page 22: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Mob Preparations

Page 23: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Mob + loadout TTS

Page 24: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Mob + loadout TTS

Page 25: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Installation Activities – TTS

1. Transit to site2. Setup on DP and pre-survey3. Assesment of weather conditions4. Removal of 50% seafastening5. Attachment of TTS rigging to Hook 6. Removal of remaining seafastening7. Overboarding8. Deployment to 1300m9. Land on SA10.Closing of locks11.Removal of rigging12.Removal of survey transponders13.Cutting seafastening of XT hatches14.Final Survey

Page 26: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Installation Snefrid TTS

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Installation Luva TTS

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Installation Luva TTS

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Special considerations for this operation

• Connection of lift rigging at SA• Wind conditions at mob location • Weather conditions in operation area can be challenging

– Polar low pressure– Strong current– Long period swell– Crossing swell

• Soil conditions at site• Installation tolerances Both SA and TTS (0.3dgr)• Water depth

– Possibility of resonance behaviour during lowering through water column

– Long time to deploy and recover– 100Te of crane wire

Page 33: Aasta Hansteen Template Installation - Subops Hansteen Template Installation ... Introduction to EMAS AMC Introduction to Aasta Hansteen Project ... Loadout and seafastening of grillage

Challenges met

• Unpredictable swell• Mobilization site

- access to mobilization services/welders- exposed to high winds

• Helgelandsbridge– Timing for crossing under at low tide

• Too coarse scale on pressure sensors

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Time savers

• Well planned and conducted mobilization– Preparation of deck and at quay before start-up– Loose items pre-packed in HH containers

• Rope access technichians for hook-up• Welding and burning equipment onboard

– Preparations for next mob done on parallel time offshore• Offshore personnel with the «right» qualifications• Utilization of 2 suction pumps • Effective survey philosophy• Time effective grillage design• Simple design. No tuggerlines• Exploited all weather windows• Open and good working relationship with client/BSC/Construction crew• Familiarizations before every job

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Work completed

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Thank You!

Disclaimer: This material includes forward-looking statements prepared by Ezra Holdings Limited (“Company”). The opinions, forecasts, projections or other statements other than statements of historical fact, including, without limitation, estimates ofproved reserves of oil and gas, reserves potential and plans and objectives of management of the Company for financing, are forward-looking statements. Although the Company believes that the expectations reflected in such forward-lookingstatements are reasonable, it can give no assurance that such expectations will prove to have been correct. All forward looking-statements contained in this presentation are expressly qualified in their entirety by the cautionary statements contained orreferred to in this section. Readers should not place undue reliance on forward-looking statements. Each forward looking statement speaks only as of the date of this presentation. Neither the Company nor any of its subsidiaries and associatesundertake any obligation to publicly update or revise any forward-looking statement as a result of new information, future events or other information. In light of these risks, results could differ materially from those stated, implied or inferred from theforward-looking statements contained in this presentation.