Haltenbanken gas trunkline technically feasible

Journal Article · Mon May 23 04:00:00 EDT 1988 · Oil Gas J.; (United States)

OSTI ID:6915771

Moshagen, H; Gjertveit, E; Rothaug, K; Sveggen, O

Installation of a large-diameter subsea gas pipeline over the irregular, iceberg-scoured seabed of the Haltenbanken field in the Norwegian North Sea is technically feasible. That's the conclusion of a major feasibility study of a gas trunkline from Haltenbanken offshore Norway to shore. The study further concludes that considerable cost savings could be obtained by careful routing of the pipeline within a sufficiently wide corridor. Characteristic features of the seabed area are water depths between 250-300 m (820-985 ft) and rugged seabed topography caused by frequent and highly irregular occurrence of iceberg ploughmarks and pockmarks. Crossing these areas with a gas trunkline represents a major pipeline engineering challenge. Outlined here are the strategy for assessing the final route selection, establishing free-span acceptance criteria, and selecting free-span correction methods.

• Research Organization: Den norske stats oljeselskap AS, Trondheim (NL)
• OSTI ID: 6915771
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 86:21; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000* -- Natural Gas-- Transport
Handling
& Storage
ATLANTIC OCEAN
COST BENEFIT ANALYSIS
ENERGY SOURCES
ENERGY SYSTEMS
EUROPE
FEASIBILITY STUDIES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
NATURAL GAS
NATURAL GAS DISTRIBUTION SYSTEMS
NORTH SEA
NORWAY
PIPELINES
PLANNING
ROUTING
SCANDINAVIA
SEA BED
SEAS
SURFACE WATERS
TRANSPORT
WESTERN EUROPE