Åsgard Challenges and Opportunities - Forsiden · Åsgard – Challenges and Opportunities...
Transcript of Åsgard Challenges and Opportunities - Forsiden · Åsgard – Challenges and Opportunities...
Åsgard – Challenges and Opportunities
2014-01-23 Classification: Internal
Mari Skaug VP Åsgard PTC
Åsgard field overview
2014-02-26 2 Classification: Internal
Åsgard A
Oil producer
Smørbukk Sør
Oil and gas condensate
Smørbukk
Gas condensate and oil
Mikkel
Gas
Pipeline
for gas
export
Åsgard B
Gas center
Åsgard C
Condensate storage
40 km
40 km
10 km
10 km
Midgard
Gas
SPE paper
Owners
Statoil ASA (operatør) 34,57 %
Eni Norge AS 14,82 %
Exxon Mobil E&P Norway AS 7,24 %
Petoro AS 35,69 %
Total E&P Norge AS 7,68 %
Where do we find Åsgard, Morvin, Mikkel og Yttergryta?
ÅSGARD PTC OPERATING FIELDS
°
Åsgard-feltenes utstrekning
Classification: Internal
2010-09-15
Production started 19.05.1999 The first shipment from Åsgard A 29.06.99
•A lot of negative articles
was published in the news
about this “hopeless
project”.
•Total Investment inkl.
Kårstø and ÅT: 65 BNOK
(Budget 48 BNOK)
•Harald Nordvik CEO in
Statoil 1988-1999 had to
leave his position.
•Pay back: May 2003
During the first year we had 26 compressor changes!
General Information – History 1981 Midgard field discovered (Saga Petroleum)
1984 Smørbukk field discovered (Statoil)
1985 Smørbukk Sør field discovered (Statoil)
1993 Statoil and Saga Petroleum start co-operation for Åsgard field development
1995 Åsgard unit PDO application, unitisation of the Smørbukk, Midgard and Smørbukk Sør fields
1996 PDO approval and project initiation: Åsgard A contracts/construction start, Start predrilling of Smørbukk and Smørbukk Sør wells
1997 Major contracts for Åsgard B (field gas centre), Kårstø expansion, Transport pipelines
1999 19th of May oil production started from Åsgard A (all gas re-injected)
2000 1st of October started gas and condensate production from Åsgard B.
2003 1st of October started gas and condensate production from Mikkel by Sub Sea tie in to Åsgard (connection to Midgard Z-template)
2006 Production of Åsgard Blend started 01.11.2006. The product contains oil and condensate from Åsgard.
2008 PDO approval Yttergryta (January 18th 2008)
2009 5th of January started gas and condensate production from Yttergryta.
Start up of Tyrihans gas injection November 1st.
2010 Morvin start up 1st of August.
2011 PDO approval for Åsgard subsea compression
2012 PDO approval for Smørbukk Sør Extension
2013 Discovery Smørbukk Nord, exploration well
Disconnection of the tie-in field Yttergryta
Gas injection in Smørbukk re-established (Dec’13)
1995 Åsgard Unitisation
• Midgard
• Smørbukk
• Smørbukk Sør
1981-85 Discovery
• Midgard
• Smørbukk
• Smørbukk Sør
1996-1999 Åsgard development
• New technology
• Budget overruns
• Board of Directors and
CEO had to resign
1988 Statoil office, Stjørdal
Heidrun
Operation,
Stjørdal
1996 Åsgard PDO approved
• Largest
• Largest floating platform
• Large area – high complexity
2014-03-19 8 Classification: Internal
Åsgard – from discovery to development
2010
Morvin
1999
Åsgard A
Midgard, Smørbukk
and Smørbukk Sør
2003 Mikkel
2012 Smørbukk
Nord-øst
Åsgard subsea
compression
2015
Smørbukk Sør
Extension Ph 1 Yttergryta
2009 Tyrihans
2000
Åsgard B
Åsgard C
2014-01-23 9 Classification: Internal
Åsgard – in operation
Technology step Recovery and lifetime for several
gas fields can be prolonged
significantly
Value creation Improve recovery by 282
millioner barrels oil equivalents
from Mikkel and Midgard
Courageous
decission Pioneering work, complex
development and important step
towards complete subsea factory
2014-01-23 10 Classification: Internal
Technology step Improve recovery from mature
fields and prolong lifetime for
Åsgard A
Value creation 16,5 million barrels oil equivalents
Courageous
decission Strategic important for access of
new resources in low permeable
reservoirs
2014-01-23 11 Classification: Internal
Åsgard
transport
til Kårstø
Åsgard
transport
2014-01-23 12 Classification: Internal
Kristin
Åsgard A
Åsgard B
Åsgard C
Smørbukk
Smørbukk
Sør
Morvin
Tyrihans
Midgard
Yttergryta
Mikkel
2014-01-23 14 Classification: Internal
Large possibilities into the future beyond 2015 Ambitious IOR strategy
Two examples on how an
IOR measure, or ‘Action’,
has been presented ......
2014-01-23 15 Classification: Internal
Large possibilities into the future beyond 2015 Low abandonment reservoir pressure
Åsgard is on decline
*Low pressure phase 1 implemented on Åsg A and B
Lowering of abandonment reservoir pressure
• Largest IOR volume contributor
• High focus on way forward (how and when) towards low
abondonment pressure in Åsgard reservoirs
• Projects ongoing on both Åsg A and Åsg B
• High complexity but many possibilities with Åsgard facilities
* Low pressure phase 1 = revamp of compressors to achieve a lower inlet separator pressure’
2014-01-23 16 Classification: Internal
Large possibilities, but tough climb ahead Infill drilling
2nd largest IOR contributor is
infill drilling
MD = 3500 - 4500 m
MD = 5000 - 6000 m
P = 500 bar
T = 165 °C
P = 250 bar
T = 90 °C
Midgard MD = 5000 - 6000 m
P = 400 bar
T = 140 °C
Smørbukk Sør
3900 m 4700 m
2500 m
Smørbukk
2014-01-23 17 Classification: Internal
Large possibilities into the future beyond 2015 Infill drilling
Drilling infill wells actively pursuing the IOR ambition
•
•
Different type of drilling challenges on the Åsgard fields
− Depth, zonation, pressure, temperature, GOR….
−
2014-01-23 18 Classification: Internal
Large possibilities into the future beyond 2015 Infill drilling
The Åsgard license has secured rig and intervention vessel
(LWI) capacity for years ahead
Åsgard – Still going strong by year 2030 Facilities for the future and technology push are key parameters.
• Secure future IOR and utilise Åsgard as a centre for 3rd
party processing
Facility for the future
• High complexity but many possibilities with Åsgard facilities
• Key parameters are:
− Life time, capacity, space and weight margin
Technology push
• Something completely new, cheaper, smarter,…….pursuing
the IOR ambition
2014-01-23 19 Classification: Internal
Åsgard – Still going strong by year 2030 Facilities – new additions 2013 - 2015
2014-01-23 20 Classification: Internal
Reserves development overview (as of RNB 2013)
~49 401
~75 615
~60 492
~53 435
RF
(%) Reserves
(MSm3 oe)
100 (In-place) 820
PDO reserves:
2247 Mmboe
355 MSm3 oe
Classifi
cation:
Internal
2012-
10-08
23
Åsgard Daily Production (31.10.12)
Max. gas
capasity Åsg B:
48.5 MSm3/d Max: 7 MSm3/d
Max injection:
21.2 MSm3/d
Classifi
cation:
Internal
2012-
10-08
24
Åsgard Unit long term gas production
Classifi
cation:
Internal
2012-
10-08
25
Classification: Internal
2010-09-15
The “Kings” of daily
oil production
1999: S-1 H,
2000: P-3 H
2001: P-3 H
2002: N-4 H
2003: J-4 H
2004: J-4 H
2001: The cumulative production for P-3 H: 1.89 MSm³ oil ! = ~1.1 Billion USD
Max daily production on one well
S-1
H
P-3
H
N-
4 H
J-
4 H
J-
4 H
Max daily production
5 648 5 760
5 100
6 200
4 750
2 940
-
1 000
2 000
3 000
4 000
5 000
6 000
7 000
1999 2000 2001 2002 2003 2004
S-1
H
P-3
H
P-3
H
N-4
H
J-4
H
J-4
H S
-1 H
28
Åsgard Reservoirs: Different stratigraphic & structural position
2
3
4
5
Båt
RorRor
Melke
Garn
Åre
Tilje
Tofte
Ile
Not
Melke
Garn
Åre
Tilje
Tofte
Ile
Not
Fangst
Depth (km)
Smørbukk Smørbukk Sør
Midgard
Åsgard – Reservoir overview
MD = 5000 - 6000 m
P = 500 bar T = 165 °C
MD = 3500 - 4500 m
P = 250 bar
T = 90 °C
4700 m
3900m
2500m
Midgard - 9 wells GORinit = 600-2000 Sm³/Sm³
GORinit = 6500 Sm³/Sm³ MD = 5000 - 6000 m
P = 400 bar
T = 140 °C
Smørbukk Sør - 17 wells Smørbukk - 36 wells
MD = 3500 - 4500 m
P = 250 bar
T = 100 °C
2500m
Mikkel - 3 wells
GORinit = 2800 Sm³/Sm³
300m
GORinit = 300-5000 Sm³/Sm³
wells: 1-5 zones commingled P+S: Garn only. Q: Garn+Ile+Tilje
Garn, Ile and Tilje wells: Garn + Ile
32 Classification: Internal 2013-07-26
Åsgard «hub» total:
• 157000 boed
• 12.6 % of DPN production
• Largest contributor in Statoil
Åsgard Petroleum Technology
Field: Smørbukk Sør (part of Åsgard Unit)
Åsgard Petroleum Technology
Field: Smørbukk (part of Åsgard Unit)
Åsgard Petroleum Technology (March 2014)
S
N
Delta
Gamma
Alpha
Beta
Yttergryta
Midgard
Mikkel
Morvin
N Smørbukk
Morvin
Fields: Midgard (part of Åsgard Unit)
Mikkel (subsea tie-in to Åsgard)
Morvin (subsea tie-in to Åsgard)
General Information – Reserves and licensees
• Dead weight: 62 500 ton
• Length / width: 115 / 96 m
• Living quarter: 120
• Normal manning: approx 59
• Crude oil storage: 145 000 m3
• Dead weight: 116 000 ton
• Light weight: 57 000 ton
• Length / width: 278 / 45 m
• Living quarter: 100
• Normal manning: approx 43
Åsgard B Åsgard A
Facilities – Production facilities
Production – Gas production, injection and export 1999-2014
0
5
10
15
20
25
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Ga
s r
ate
[G
Sm
3/y
r]
Gas production [GSm³]
Gas injection [GSm³]
Gas export [GSm³]
Production – Liquid production 1999-2014
0
2
4
6
8
10
12
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Liq
uid
rate
[M
Sm
3/y
r]
Smørbukk Sør
Smørbukk
Midgard
Reservoir information – General production strategy
Intro produksjonsteknologi Åsgard
Classification: Internal 2013-01-22
5
5
-
Morvin
Tyrihans Nord
Tyrihans Sør
Yttergryta
Norne/Heidrun
Transport
Kristin
Mikkel
Midgard
Smørbukk
Smørbukk
Sør
Åsgard Transport Til Kårstø
Til Tjeldbergodden
Part of Haltenbanken
56
Åsgard Transport
• From Åsgard to Kårstø
− 707 km
− 42’’
− 70.4 MSm3/d capasity
• Fields delivering to Åsgard Transport:
− Norne
− Skarv
− Åsgard
− Heidrun
− Kristin
− Njord
− Draugen
Classification: Internal 2013-01-22
58 Classification: Internal 2013-01-22
Åsgard Daily Production (21.01.13)
Max injection:
21.2 MSm3/d
Max: 7 MSm3/d
Max. gas
capasity Åsg B:
48.5 MSm3/d
Well interventions, Workover & completions
Classification: Internal 2013-01-23
5
9
Comming
in 2016
IMR
SCM / FCM
Bullheading into well
- Disolver
- Scale inhibiitor etc.
Drilling rigs
New wells, Sidetrack and
re-completions
Production challenges and opportunities
• Stimulation of low productivity wells – fracturing in existing cemented liners
• Start-up and production of wells due to low reservoir pressure and/or high WC
• Minimum flow in Midgard / Mikkel loop
• High temperature (WL tractors, HNS perforation guns)
• Water detection and shut-off technology including annular flow
• Retrofit sand control screens (inside exisiting liner)
• Removal of sand fill
• Rig-site clean-up tracer technology
• Riser collapse
• Topside and subsea rate measurements
• Hydrate control
Classification: Internal 2012-11-18
6
4