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metteur07/05/2004
The Matterhorn projectPresentation at the Marine Technology Society Luncheon April 22, 2004
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C.Van der Linden
Matterhorn Project
Agenda
General Project Overview
Development architecture
Key challenges
Execution highlights
Conclusions
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Matterhorn Project
General overview
High
Island
Brazos
Galveston
MU
West
Cameron
East
Cam.Verm.
SMI EugeneIsland Shoal South
Timbalier
GI
WestDelta
East Breaks
Alaminos
Canyon KeathleyCanyon
Garden
Banks Green Canyon
Walker
Ridge
EW
MO
200m
Texas
Louisiana
SP
MississippiCanyon
Main
Pass
VK
BS
Lund
1000m
2000m
3000m
Atwater
Ship
Aconcagua
Virgo
Matterhorn
New Orleans
Total Properties
Exploration
Production
0 50 10025
Miles
VKHouston
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Matterhorn Project
Key Time line
Discovery early 1999: 2800 ft water-depth, Multi-layered reservoir
Decision to develop: July 2001
Start development drilling: December 2001
Installation: August 2003
Start well completion: September 2003
First oil: November 2003
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Matterhorn Project
The platform : a SeaStar TLP
Surface piercing structure (TLP or SPAR) w/dry tree chosen due to reservoir complexity
(Multi-levels).
Atlantia chosen after design competition withan EPCI Lump Sum Contract.
Hull : draft 104, height 125, dia. 84 weight5,500 T.
9 slots for production risers and dry trees(spacing 10x10)
Mooring : 6 x 32tendons, 6 x 96 piles(tension 2,800 klbs per tendon).
1,000 HP W/O rig (separate contract). 10 Gas and 8 Oil Export SCRs, WI flexible Provisions for future subsea tie-backs ABS Class FOI
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Matterhorn Project
Topsides general Overview
140x140, 3 decks
11,000kips dry, 12,600 kips operating
33,000 bopd, 55 MMscfd, 20,000bwpd
100 MMscfd gas drying, WI 30,000 bwpd
2 Cranes: 45 t and 75t
2x 4.5 MW turbines (2x50%);1.2 MW e-gen
Gas engine driven recip. compressors
3 survival capsules, 50 pax eachLQ: 22 pax permanent, 78 temporary
Blast &fire wall
Helideck: 56x56 for Bell 412, Sik 76
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Matterhorn Project
Risers and pipelines
Export by two 16 miles
pipelines (8 and 10), 8owned by Chevron.Hot-tap tie-in points totrunklines
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Matterhorn Project
SCR Overview (first Total SCRs)
MWL
10" GAS EXPORT (SCR)10.75" O.D x 0.625" W.T PIPE
HANG -OFF ANGLE15
WD @ TLP = 2811 ft.
1300'STRAKE
LENGTH
MUDLINE @ CL TLP
HORIZONTAL DISTANCE TO TDP (MEAN)
MUDLINE EL.(-) 2706 ft.
SCR TOUCH DOWN (MEAN)
3 SEA BED SLOPE
1955'
Lcate
nary
=35
08
ft.
1499'HORIZONTAL DISTANCE TO TDP (NEAR)
2464'
HORIZONTAL DISTANCE TO TDP (FAR)
Lcate
nary
=3
248
ft.
Lcatena
ry=382
3ft.
SCR TOUCH DOWN (NEAR)SCR TOUCH DOWN (FAR)
NOT TO SCALE
1300FT.HELICALSTRAKES
SCALE: NONE16D X 0.25DHELICAL STRAKE
MATTERHORN
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Development architecture screening process
PHASE 1: SCREENING STUDYDRILLING/COMPLETION COST
PRE-SIZING AND COST OF 12 CONCEPTS(Summer 1999)
PHASE II: DEVELOPMENT OPTIONS DRY TREE OR SUBSEA?CONCEPTS SELECTION
PHASE III: TOPSIDES DESIGNPROCESS DESIGN LAYOUT DRAWINGS(Nov 1999 April 2000)
PHASE IV: CONCEPT COMPETITION FINAL PROPOSALS / SELECT ONE
CONCEPT (March 2000 to June 2001)
PHASE V: PROJECT July 2001 - November 2003 (FIRST OIL)
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C.Van der Linden
Matterhorn Projectoncepts Considered in Phase I (Screening Study)
Dry Tree Atlantia Sea Star
Modec Moses
ABB TLP and Mini-TLP
Spars Classic Spar and Truss Spar
Kvaerner DDF
Technip TPG 3300
Mustang Compliant Tower
Hutton TLP
Sub-Sea
Atlantia Sea Star Cal Dive EGB Semi-Submersible
Oceaneering Converted Semi-Submersible
Intec Remote Subsea ( Taylor MC 20 Platform)
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Matterhorn Project
Key Project Technical Challenges
Drilling: Deviated wells with shallow kick-off and shallow waterflow
Biggest mono-hull TLP and first with dry risers
Met-Ocean: consideration of Cold core current profile
Production risers with Surface Xmas trees: Keel joint development
Reeled SCRs
M tt h P j t
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Challenge: biggest mono-hull TLP + dry trees
M tt h P j t
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Matterhorn Project
Challenges: Drilling of High Angle wells
A1
A2
A3 A4
A5A6
A7
A9
MC199#1
MC243#1
MC243#2
MC243#3
Conoco #1
2000'
4000'
6000'
7 Dry Tree
1 Wet Tree (A6)
A1
A2
A3
A4
A5
A7
A9
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
0 1,000 2,000 3,000 4,000 5,000 6,000 7,000
7 Dry Tree
1 Wet Tree (A6)
A6
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Matterhorn Project
Challenges: Consideration of Cold Core Current (CCE)
FUTURESCR
10"G
ASEXPORT
FUTURESCR
F U T U R E
S C R
6" WATER
INJECTION
SCR
UMBILIC
ALS
FUTURE
SCR
8"OILE
XPORT
#2
#3#4
#5 #6 #7#8
#1
FUTURESCR
ORIGINAL RISER ARRANGEMENT
QTY - 1 OIL EXPORT 8" SCRQTY - 1 GAS EXPORT 10" SCRQTY - 1 WATER INJECTION 6" SCRQTY - 1 FUTURE WATER INJECTION 6" SCRQTY - 4 FUTURE PRODUCTION 6" SCRs
FUTURESCR
10"G
ASEXPORTFUTURE
SCRFUTURE
FLEXIBLE
RISER
FUTURE
FLEXIBLE
RISER
8"OILE
XPORT
A-6WATER INJE
CTIONRISER
FUTUREWATERINJECTIONRISER
A-6 WATER INJECTION UMBILICAL
FUTUREWATER INJECTION UMBILICAL
FUTUREUM
BILICAL
F U T U R E U M B I L I C A L
#1
#2
#3#4
#5
#6#7
#8
CURRENT RISER ARRANGEMENT
QTY - 1 OIL EXPORT 8" SCRQTY - 1 GAS EXPORT 10" SCRQTY - 1 WATER INJECTION 6" SCR / FLEXIBLEQTY - 2 FUTURE FLEXIBLESQTY - 1 FUTURE WATER INJECTION SCRQTY - 2 FUTURE PRODUCTION SCRs
Fatigue:
9design life at 10 x recorded event9Need fairings to 1500
Platform offset
Riser/tendon interference
Before
After
0
500
1000
1500
2000
2500
30000 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Non-Dimensionalised Current Speed (1=max)
WaterDepth
(ft)
100yr Loop
Cold-Core Eddy
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Challenges: Production riser keel joint
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Matterhorn Project
Project Highlights
Drilling
Construction
Installation
Production risers
SCRs
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Drilling: pre-drilling of 7 wells, seabed spacing 25ft
ENSCO 7500
Tropical Storm Hanna
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Hull construction by Keppel/Fels - Singapore
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Topsides Construction by Gulf Marine Fabricators
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Tendons fabrication by Kiewitt Offshore
Tendon main body sections with
fairings
Bottom connector
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Hull transport on the Tai an Kou
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HULL Load-on Transportship
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Installation by HMC Hermod
Installed piles in March 03. Tendon Installation started on June 3, 03. Went on Stand by during tendon installation on June 10
due to high current (Eddie Current >1.5 knts) and two
tropical storms. Resumed work on July 16 after 34 days stand-by Deck was set on August 3.
Platform was habitable on Aug 5.
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Eddy Currents
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Pile and tendon Installation
Tendon spacer
Buoyancy cans
Matterhorn ProjectHull Installation
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Hull Installation
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Topsides lift: 5800 t
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Production risers
Keel joint centraliser
PRTs
Well bay
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Pipelines & sub sea
Multi-contract &PO approach Pipelines were installed in April
May 2003 by the reel-ship DeepBlue (Technip) before platforminstallation and picked up by thecrane barge Hermod.
Commissioning by Stolt Subsea injection well completion
and connection to be performed in
May-June 2004.
Matterhorn Project
SCR R l
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SCR Results
Installed Within Tolerance
Both Lines Have BeenPigged
CP Inspection Results OK
Touchdown Point Trenching
As Predicted
Matterhorn Project
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Conclusions
3.2 Million manhours
LTIF