West sole gas line trenched swiftly by post-burial plow

Journal Article · Sun May 01 00:00:00 EDT 1983 · Pipeline Gas J.; (United States)

OSTI ID:6018472

Hale, D

A ''post trenching'' aspect and soil conditions made it necessary for British Petroleum to plow-trench its 43.75-mile (70 km), concrete-coated 24-in. (610 mm) steel pipeline from the West Sole gas field offshore in the North Sea to the BP Easington Terminal. The capability to set a plow over an existing pipeline and to bury it in its prelaid location is an invaluable alternative to pretrenching techniques or to conventional jetting sleds. Design and modifications to equipment, instrumentation, control systems, and support vessels had to be performed in a 6-month period. Computer display CRT monitors onboard the barge helped insure that anchor movements and subsea activities remained a safe distance from another live gas pipeline along the route of the new line. Overall plowing rate average was 1.125 miles per day (1.8 km) or 1.25 m per minute (4.1 ft) on the offshore section.

• OSTI ID: 6018472
• Journal Information: Pipeline Gas J.; (United States), Vol. 210:6
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
42 ENGINEERING
NATURAL GAS
TRANSPORT
NORTH SEA
PIPELINES
EMPLACEMENT
BARGES
COMPUTERIZED CONTROL SYSTEMS
CONSTRUCTION
OFFSHORE OPERATIONS
SOIL MECHANICS
ATLANTIC OCEAN
CONTROL SYSTEMS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MECHANICS
SEAS
SURFACE WATERS
032000* - Natural Gas- Transport
Handling
& Storage
423000 - Engineering- Marine Engineering- (1980-)