Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska
Two holes were successfully drilled and cored to depths of 1000 ft and 1200 ft in the frozen mudstone of the Tiglukpuk formation at Cape Thompson, Alaska. Permafrost extends to a depth of approximately 1000 ft. The hole walls were successfully stabilized, even in zones of very weak rock, by the use...
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1972
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| Online Access: | http://www.dtic.mil/docs/citations/AD0762355 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0762355 |
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ftdtic:AD0762355 2023-05-15T16:36:49+02:00 Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska Lange,G. Robert Smith,T. K. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H 1972-09 text/html http://www.dtic.mil/docs/citations/AD0762355 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0762355 en eng http://www.dtic.mil/docs/citations/AD0762355 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Civil Engineering (*PERMAFROST DRILLING) DRILLS DRILLING MACHINES ICE ROCK CUTTING FLUIDS SAMPLING THERMISTORS ALASKA BOREHOLES ROTARY DRILLING DRILL CORES Text 1972 ftdtic 2016-02-19T02:56:33Z Two holes were successfully drilled and cored to depths of 1000 ft and 1200 ft in the frozen mudstone of the Tiglukpuk formation at Cape Thompson, Alaska. Permafrost extends to a depth of approximately 1000 ft. The hole walls were successfully stabilized, even in zones of very weak rock, by the use of refrigerated diesel fuel as a drilling fluid, and frozen cores of good quality were taken with little difficulty. A thermistor cable was inserted in one of the holes and ground temperatures were measured to 1000 ft with a high order of accuracy and stability. Data required to predict accurate equilibrium temperatures were available one month following installation. (Modified author abstract) See also Part 1, AD-681 218. Text Ice permafrost Alaska Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
| language |
English |
| topic |
Snow Ice and Permafrost Civil Engineering (*PERMAFROST DRILLING) DRILLS DRILLING MACHINES ICE ROCK CUTTING FLUIDS SAMPLING THERMISTORS ALASKA BOREHOLES ROTARY DRILLING DRILL CORES |
| spellingShingle |
Snow Ice and Permafrost Civil Engineering (*PERMAFROST DRILLING) DRILLS DRILLING MACHINES ICE ROCK CUTTING FLUIDS SAMPLING THERMISTORS ALASKA BOREHOLES ROTARY DRILLING DRILL CORES Lange,G. Robert Smith,T. K. Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska |
| topic_facet |
Snow Ice and Permafrost Civil Engineering (*PERMAFROST DRILLING) DRILLS DRILLING MACHINES ICE ROCK CUTTING FLUIDS SAMPLING THERMISTORS ALASKA BOREHOLES ROTARY DRILLING DRILL CORES |
| description |
Two holes were successfully drilled and cored to depths of 1000 ft and 1200 ft in the frozen mudstone of the Tiglukpuk formation at Cape Thompson, Alaska. Permafrost extends to a depth of approximately 1000 ft. The hole walls were successfully stabilized, even in zones of very weak rock, by the use of refrigerated diesel fuel as a drilling fluid, and frozen cores of good quality were taken with little difficulty. A thermistor cable was inserted in one of the holes and ground temperatures were measured to 1000 ft with a high order of accuracy and stability. Data required to predict accurate equilibrium temperatures were available one month following installation. (Modified author abstract) See also Part 1, AD-681 218. |
| author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H |
| format |
Text |
| author |
Lange,G. Robert Smith,T. K. |
| author_facet |
Lange,G. Robert Smith,T. K. |
| author_sort |
Lange,G. Robert |
| title |
Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska |
| title_short |
Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska |
| title_full |
Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska |
| title_fullStr |
Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska |
| title_full_unstemmed |
Rotary Drilling and Coring in Permafrost. Part III. Deep Core Drilling, Core Analysis and Bore Hole Thermometry at Cape Thompson, Alaska |
| title_sort |
rotary drilling and coring in permafrost. part iii. deep core drilling, core analysis and bore hole thermometry at cape thompson, alaska |
| publishDate |
1972 |
| url |
http://www.dtic.mil/docs/citations/AD0762355 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0762355 |
| genre |
Ice permafrost Alaska |
| genre_facet |
Ice permafrost Alaska |
| op_source |
DTIC AND NTIS |
| op_relation |
http://www.dtic.mil/docs/citations/AD0762355 |
| op_rights |
APPROVED FOR PUBLIC RELEASE |
| _version_ |
1766027136848625664 |