Polar Gas Ltd. line wants to use a new pipelay method

Journal Article · Mon Mar 24 04:00:00 EST 1980 · Oil Gas J.; (United States)

OSTI ID:5703899

Polar Gas Ltd. line wants to use a new pipelay method to connect Mackenzie Delta and Arctic Islands gas reserves to southern Canada. The proposed ''ice hole bottom pull'' method for laying pipe under ice-covered water must still be approved by Canada National Energy Board; it involves the cutting and insulation, with a collar, of holes in the ice every 1.24 mi; the threading of a series of increasingly strong cables under the ice, with eventually a 3 in. steel hawser capable of bearing the strain of a 12 mi pipe string running from hole to hole; and the use of pull units with winch grips to haul the pipe into position. Pipe strings would be welded from smaller sections on shore and sealed to maintain buoyancy, but once in place, the strings would be opened at the ends and welded into one pipeline. A submarine module would permit welders at depths of about 2000 ft to work at surface pressure. According to Polar Gas, there are already enough gas reserves to assure the viability of the pipeline, which could be in place within 7 to 10 y.

• OSTI ID: 5703899
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 78:12; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000* -- Natural Gas-- Transport
Handling
& Storage
ARCTIC GAS PIPELINES
ARCTIC REGIONS
CABLES
CANADA
ENERGY SOURCES
EQUIPMENT
FABRICATION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
ICE
INSTALLATION
JOINING
MATERIALS HANDLING EQUIPMENT
NATURAL GAS
NORTH AMERICA
PIPELINES
POLAR REGIONS
RESERVES
RESOURCES
SHIPS
SUBMARINES
TECHNOLOGY UTILIZATION
TRANSPORT
UNDERWATER OPERATIONS
USES
WELDING
WINCHES