Performance of a warm-oil pipeline buried in permafrost
Instrumentation of a buried warm-oil (71 degrees C) pipeline test section near Inuvik, N.W.T. was undertaken by Mackenzie Valley Pipeline Research Limited, with technical assistance from the Division of Building Research, National Research Council, Canada. The test section was placed in a gravel fil...
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National Academy of Sciences, Publ.
1973
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20373888 2024-02-11T10:04:42+01:00 Performance of a warm-oil pipeline buried in permafrost Watson, G. H. Rowley, R. K. Slusarchuk, W. A. 1973 text https://nrc-publications.canada.ca/eng/view/ft/?id=ab5fd675-2a03-4aa5-ab1f-250354731bca https://nrc-publications.canada.ca/eng/view/object/?id=ab5fd675-2a03-4aa5-ab1f-250354731bca https://nrc-publications.canada.ca/fra/voir/objet/?id=ab5fd675-2a03-4aa5-ab1f-250354731bca eng eng National Academy of Sciences, Publ. North American Contribution to the 2nd International Conference on Permafrost, 2nd International Conference on Permafrost, July 1972, Yakutsk, Siberia, Publication date: 1973, Pages: 759–766 report_number:DBR-RP-602 permafrost pergélisol soils sol (terre) oil pipelines oléoduc settlement tassement freeze thaw cycles gel dégel article 1973 ftnrccanada 2024-01-21T00:02:13Z Instrumentation of a buried warm-oil (71 degrees C) pipeline test section near Inuvik, N.W.T. was undertaken by Mackenzie Valley Pipeline Research Limited, with technical assistance from the Division of Building Research, National Research Council, Canada. The test section was placed in a gravel fill overlying an ice rich silt subgrade. Pore pressures in the resulting thaw bulb were measured using pneumatic piezometers and the rate of movement of the thaw bulb was determined using thermistor probes. Settlements occuring within the fill were measured and correlated with predictions made from laboratory thaw-settlement tests. As a result of this investigation a temperature buildup from 38 to 60 degrees C over a 5-year period is proposed for a full- scale pipeline operation to ensure adequately low pore pressures and to decrease the settlement rates. Un troncon d'essai de pipeline transportant du pétrole chaud (71 degrés C) près d'Inuvik (T.N.-O.) a été muni d'instruments de mesure par la Mackenzie Valley Pipeline Research Limited, avec l'assistance technique de la Division des recherches en bâtiment du Conseil national de recherches du Canada. Le troncon est enterré dans un remblai de gravier couvrant un sous-sol limoneux riche en glace. On mesure les pressions interstitielles dans la bulbe de dé gel à l'aide de piézomètres pneumatiques et on détermine la vitesse de mouvement de la bulbe de dégel au moyen de sondes à thermistors. Le tassement qui se produit dans le remblai est mesuré et mis en corrélation avec les prédictions fondées sur des essais de dégel-tassement en laboratoire. Compte tenu des résultats de la présente étude, on propose une augmentation de la température de 38 à 60 degrés C sur une période de cinq ans pour un pipeline en vraie grandeur afin d'assurer des pressions interstitielles suffisamment basses et de diminuer la vitesse de tassement. Peer reviewed: No NRC publication: Yes Article in Journal/Newspaper Ice Inuvik Mackenzie Valley permafrost pergélisol National Research Council Canada: NRC Publications Archive Canada Conseil ENVELOPE(-67.433,-67.433,-67.596,-67.596) Gravier ENVELOPE(-67.350,-67.350,-67.217,-67.217) Inuvik ENVELOPE(-133.610,-133.610,68.341,68.341) Mackenzie Valley ENVELOPE(-126.070,-126.070,52.666,52.666) |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
permafrost pergélisol soils sol (terre) oil pipelines oléoduc settlement tassement freeze thaw cycles gel dégel |
spellingShingle |
permafrost pergélisol soils sol (terre) oil pipelines oléoduc settlement tassement freeze thaw cycles gel dégel Watson, G. H. Rowley, R. K. Slusarchuk, W. A. Performance of a warm-oil pipeline buried in permafrost |
topic_facet |
permafrost pergélisol soils sol (terre) oil pipelines oléoduc settlement tassement freeze thaw cycles gel dégel |
description |
Instrumentation of a buried warm-oil (71 degrees C) pipeline test section near Inuvik, N.W.T. was undertaken by Mackenzie Valley Pipeline Research Limited, with technical assistance from the Division of Building Research, National Research Council, Canada. The test section was placed in a gravel fill overlying an ice rich silt subgrade. Pore pressures in the resulting thaw bulb were measured using pneumatic piezometers and the rate of movement of the thaw bulb was determined using thermistor probes. Settlements occuring within the fill were measured and correlated with predictions made from laboratory thaw-settlement tests. As a result of this investigation a temperature buildup from 38 to 60 degrees C over a 5-year period is proposed for a full- scale pipeline operation to ensure adequately low pore pressures and to decrease the settlement rates. Un troncon d'essai de pipeline transportant du pétrole chaud (71 degrés C) près d'Inuvik (T.N.-O.) a été muni d'instruments de mesure par la Mackenzie Valley Pipeline Research Limited, avec l'assistance technique de la Division des recherches en bâtiment du Conseil national de recherches du Canada. Le troncon est enterré dans un remblai de gravier couvrant un sous-sol limoneux riche en glace. On mesure les pressions interstitielles dans la bulbe de dé gel à l'aide de piézomètres pneumatiques et on détermine la vitesse de mouvement de la bulbe de dégel au moyen de sondes à thermistors. Le tassement qui se produit dans le remblai est mesuré et mis en corrélation avec les prédictions fondées sur des essais de dégel-tassement en laboratoire. Compte tenu des résultats de la présente étude, on propose une augmentation de la température de 38 à 60 degrés C sur une période de cinq ans pour un pipeline en vraie grandeur afin d'assurer des pressions interstitielles suffisamment basses et de diminuer la vitesse de tassement. Peer reviewed: No NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Watson, G. H. Rowley, R. K. Slusarchuk, W. A. |
author_facet |
Watson, G. H. Rowley, R. K. Slusarchuk, W. A. |
author_sort |
Watson, G. H. |
title |
Performance of a warm-oil pipeline buried in permafrost |
title_short |
Performance of a warm-oil pipeline buried in permafrost |
title_full |
Performance of a warm-oil pipeline buried in permafrost |
title_fullStr |
Performance of a warm-oil pipeline buried in permafrost |
title_full_unstemmed |
Performance of a warm-oil pipeline buried in permafrost |
title_sort |
performance of a warm-oil pipeline buried in permafrost |
publisher |
National Academy of Sciences, Publ. |
publishDate |
1973 |
url |
https://nrc-publications.canada.ca/eng/view/ft/?id=ab5fd675-2a03-4aa5-ab1f-250354731bca https://nrc-publications.canada.ca/eng/view/object/?id=ab5fd675-2a03-4aa5-ab1f-250354731bca https://nrc-publications.canada.ca/fra/voir/objet/?id=ab5fd675-2a03-4aa5-ab1f-250354731bca |
long_lat |
ENVELOPE(-67.433,-67.433,-67.596,-67.596) ENVELOPE(-67.350,-67.350,-67.217,-67.217) ENVELOPE(-133.610,-133.610,68.341,68.341) ENVELOPE(-126.070,-126.070,52.666,52.666) |
geographic |
Canada Conseil Gravier Inuvik Mackenzie Valley |
geographic_facet |
Canada Conseil Gravier Inuvik Mackenzie Valley |
genre |
Ice Inuvik Mackenzie Valley permafrost pergélisol |
genre_facet |
Ice Inuvik Mackenzie Valley permafrost pergélisol |
op_relation |
North American Contribution to the 2nd International Conference on Permafrost, 2nd International Conference on Permafrost, July 1972, Yakutsk, Siberia, Publication date: 1973, Pages: 759–766 report_number:DBR-RP-602 |
_version_ |
1790601423266775040 |