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Aasta Hansteen
Template Installation
Presentation @ SubOps August 2015
Project development
Agenda
Introduction to EMAS AMC
Introduction to Aasta Hansteen Project
Mobilization
Installation of suction anchors
Installation of template structures
Challenges and timesavers
EMAS AMC Timeline
EMAS Group - Our presence and client base
Our Service Offerings
Building Rigid Capabilities: Vessels and Spoolbase
EMAS Marine Base Gulen
EMAS Marine Base Ingleside
Spoolbase Pipelay
Lewek Express
Lewek Constellation
Lewek Centurion
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
Introduction
Aasta Hansteen Field
WD -1280m
3 Templates installed by EMAS
AMC150 NM
Project History
Project development
Lewek Connector Boa SubC
Mobilization
• Mobilization in Sandnessjøen– Startup Late April 2015– 4 portcalls
Coastbase in Sandnesssjøen Strendene Quay
3 Suction Anchors 118/106Te 7,5m x 21/18m
1-slot TTS 112Te, 16x19x12m
4-slot TTS 180Te, 23X20x12m
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
Mob preparations
Time out for saftey
Dropped object sweep
Loadout and welding
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
Installation
Installation
Mob Preparations
Mob + loadout TTS
Mob + loadout TTS
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
Installation Snefrid TTS
Installation Luva TTS
Installation Luva TTS
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
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
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
Work completed
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.