ULTRA DEEP WATER PIPELINE
CAPABILITIES
and
CHALLENGES
Mons Hauge
Statoil R&D
DEEP WATER AREAS
zNORWEGIAN
SEA
– 17th: 900m
– 18th: 1500m
zCASPIAN
– 600m
zNIGERIA NNWA:
– 1400m
zBRAZIL
– ~3000m
zVENEZUELA
– 300m
– (1000m)
DEEP WATER PIPELINES
CHALLENGING PROJECTS
Gazprom BlueStream 24"
Shell Mars 18"
Shell Ursa 15"
Amoco Aquaba 30"
Exxon Diana 18"
Shell Auger 12"
NH Ormen L 30"
Nansen/Boomv. 18"
BP/TFE/Marathon Canyon Express 12"
Shell Popeye 6"
Petrobras Campos 10"
Petrobras Marlin 12"
Petrobras Roncador 10"
Shell Na Kika 20"
BP Mardi Gras 28"
Diana 20"
Allegheny 14"
ÅTP 42"
Europipe II 42"
TOR II 20"
Haltenpipe 16"
SNAM Transmed 26"
TOR I 16"
Zeepipe IIb 40"
Shell Malampaya 24"
Shell Malampaya 16"
Statpipe 30"
SNAM Sicily 20"
SNAM Mesina 20"
Shell Mensa 12"
Crazy
Horse 28"
Caesar 24"
Okeanos 24"
Iran –
India 20"
0
200
400
600
800
1000
1975
1980
1985
1990
1995
2000
2005
INSTALLATION YEAR
Depth x Diameter2J-lay
Reel
S-lay
Planned
Statoil
DIFFICULTY: (DEPTH x DIAMETER2)
THE RELEVANT TECHNOLOGIES TO INSTALL AND
OPERATE DEEP WATER PIPELINES ARE:
DEEP WATER CHALLENGES
• DESIGN FRAMEWORK
• GEOHAZARD ASSESSMENT
• DEEP WATER LAYING
• MAPPING
• FREE SPANS
• SEABED INTERVENTION
• HOT TAP AND REPAIR TECHNOLOGY
• RISK MANAGEMENT & PROJECT
ORGANISATION
DEPTH ITSELF IS NOT MOST IMPORTANT
DNV PIPELINE RULES & GUIDELINES USED WORLD WIDE
zSTATOIL EXPERIENCE AND R&D HAS CONTRIBUTED TO THE DESIGN
RULES AND REQUIREMENTS E.G.:
– Buckling capacity in service (HOTPIPE)
– Free span fatigue assessment (FATFREE)
– Integrated materials requirements and design rules
zSTATOIL DEVELOPS RULES PRIOR TO AND DURING CHALLENGING
PROJECTS E.G.
– Troll Oil
– Åsgard Transport
zTHROUGH CO-OPERATION WITH DNV THE EXPERIENCE IS
IMPLEMENTED IN THE DESIGN RULES
Challenge 1
DESIGN FRAMEWORK
Challenge 2
SLOPES / GEOHAZARDS
zSLOPES (20–30O) + SEDIMENTS +
EARTH QUAKES => GEOHAZARDS
SOLUTIONS
•routing to avoid slides
•quantify load on pipeline
•assess risk
Soil investigations Geological models
SLOPE STABILITY
•when does movement occur?
•when => gross mass