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Subsea maintenance workshop – 24.4.2013 Karl Olav Haram [email protected]
Subsea Production System (SPS)
Subsea Production System: • Subsea system.
• Production control system.
• Structure & manifold system.
• Intervention system.
• Umbilical system.
• Processing system.
• Subsea Marine operations.
• Subsea electro technology.
• Subsea operations & maintenance.
Subsea Template & Manifold
• Function:
− Guide for drilling of 30” conductors
− Foundation for 30” conductor, BOP, XT,
manifold and tie-in of sealines
− Overtrawlability and dropped objects
protection of wells and manifold
• Interface:
− 36” or 30” conductor
− Manifold
• Design parameter
− Tie-in loads
− Loads from fishing gear
− Dropped objects
− Installation loads
− Soil
Subsea Templates Construction and Installation
Drainage strategy
Design basis
Data Value
Design Life 25 years
Water depth MSL (m) 80m to 500m
Design Temperature -180C to 1210C
Design Pressure Subsea Tree System 690 bar
Design Pressure Subsea Manifold System 517 bar
Typical Step-out from Installation 40 km
8 - Classification: Internal 2011-09-19
Statoil – Subsea wells in operation (01.01.2011)
Field Wells Supplier
Troll 120 FMC/AS/GE
Åsgard 57 FMV
Gullfaks satellites 41 FMC
Norne 31 FMC
Snorre 27 GE/CIW
Vigdis 24 FMC/GE
Statfjord 23 FMC
Heidrun 21 FMC
Visund 16 AS
Oseberg 16 FMC/AS/CIW
Njord 15 AS
Tordis 15 GE
Fram 12 FMC/AS
Kristin 12 AS
Field Wells Supplier
Snøhvit 10 GE
Sleipner 7 FMC
Glitne 7 AS
TOGI 5 CIW
Tune 5 AS
Tyrihans 4 FMC
Sygna 4 FMC
Vega 4 FMC
Morvin 3 AS
Mikkel 3 FMC
Vilje 2 AS
Vale 1 FMC
Yttergryta 1 FMC
Alve 1 FMC
-------------------------------------------------------------------------------------------------
Total 487
Suppliers
AS: Aker Solution
CIW: Cameron Iron Works
FMC:FMC Kongsberg Subsea
GE: GE/Vetco Gray
Classification: Internal 2013-02-06
1
0
Sleipner Vest
Alfa Nord
4 2 Sleipner Øst
7 Glitne
10 Snøhvit
# of
wells
1-5 wells
5-10 wells
10-30 wells
> 30 wells
Overview of Statoil subsea wells Operator of 504 wells per 1.1.2013, Service provider of 9 wells
Loke
Mikkel
Morvin
Alve
Marulk
Kristin
4
Åsgard Heidrun
3 Yttergryta
Tyrihans
Njord
Norne Urd
2
2
12
60 21
9
15
1
26 9
2 Skuld
2 Hyme
1
Visund Sør
25
Vigdis
23
36
19 Snorre B
Gullfaks A/C
15 Oseberg 5 Tune
17 Visund
14
Tordis
6 Vega
122 Troll
12 Fram
Statfjord
10 Snorre UPA
1
Gullfaks Sat-SRI
5
160
127
102 66
49
504
0
100
200
300
400
500
600
East Mid South West North Total
Wells per Area
2 Atla 2 Skirne / Byggve
1 Vale
3 Sigyn
Operator
Service provider
249
156
82
10 7
0
50
100
150
200
250
300
~7 km
Johan Castberg - Field Development - screening development options
Oil pipeline to Veidnes (~280km)
Havis Skrugard
Depth below MSL (m) 1780-2030 1217-1900
GOR 108 60
API 33 31
Reservoir temperature 58 37.4
Reservoir pressure 197 141
No of producers 8 14
No of gas injectors 1 3
No of water injectors 5 7
S N A A
‘
Southern region
Middle region
Northern region
Classificati
on: Internal
2012-06-25
Barents Sea exploration 2013/14
Johan Castberg area
• Growth exploration to prove additional
resources
Hoop area
• Frontier exploration
Hammerfest Basin
• Growth exploration close to existing
discoveries
* Appraisal drilling planned in case of a discovery
An extensive year-round drilling campaign
2013-14 planned Statoil drilling activity
Snøhvit Goliat
Ensis
Atlantis
Apollo*
Kramsnø
Skavl
Iskrystall
Nunatak
Skrugard
Havis
Wisting
Askepott
Partner operated licenses
Statoil operated licenses
Other licenses
Planned non-operated wells
Planned Statoil operated wells
Discoveries 2011/2012
Barents Sea; Hoop area Additional Challenge
• HOOP area on 10year line
• Not Iceberg, only surface ice
Apollo
Oil storage
Gas compression
Gas, oil, produced
water separation
Power distribution
and control
Manifold
Sea water injection
template with pumping
Produced water
injection template
Production
template Produced water
injection pump Production
template
ROV
intervention
Oil pump
Oil export
Gas export
The Statoil Subsea Factory™
Classificati
on: Internal
2012-08-16
15
Oil storage
Gas compression
Gas, oil, produced
water separation
Power distribution
and control
Manifold
Sea water injection
template with pumping
Produced water
injection template
Production
template Produced water
injection pump Production
template
ROV
intervention
Oil pump
Oil export
Gas export
The Statoil Subsea Factory - maturity
Commercially
available
Tyrihans Qualification
ongoing
Lufeng /
Tordis
Gullfaks /
Aasgard
Qualification –
Ormen Lange
Tordis
Tordis
Commercially
available
Commercially
available
Commercially
available
Commercially
available
