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Instrumentation around a warm oil pipeline buried in permafrost

From National Research Council Canada

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FormatText, Article
Subjectpermafrost; soils; measuring instruments; cold regions; oil pipelines
Abstract
A section of an uninsulated pipeline, 90 ft (27.4 m) long and 2 ft (0.61 m) in diameter, was buried in ice-rich permafrost at the Mackenzie Valley Pipe Line Research Limited Inuvik Test Facility. Oil at 160 degrees F (71 degrees C) was circulated through the pipe from July 1971 to January 1972 causing a thaw bulb to develop around it. Instrumentation was placed around the pipe to measure temperature, settlement, and pore-water pressure. Temperatures near the ground surface and at depth were measured using thermistors as the sensing element. Settlement was monitored by spiral foot gauges and by taking elevations at the ground surface and on rods welded to the pipe. Pore pressures were measured by gas-operated and Casagrande-type piezometers. Selection, fabrication, and installation of this instrumentation are discussed.
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  • Canadian Geotechnical Journal 10 (May 1973): 227–245.
LanguageEnglish
Peer reviewedNo
IdentifierDBR-RP-559
NRC numberNRCC 13194
NRC-IRC-2683
NPARC number20373782
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Record identifier738e512f-3b1d-4b55-a783-10e2d1277c69
Record created2012-07-23
Record modified2024-01-11
Date modified: