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Author
Duphil Romain, Possenti Philippe, Piard Luc,
Title
A new leak-tight borehole casing at Dome Concordia station, Antarctica, for the SUBGLACIOR project
Type
Journal Article
Year
2014
Publication
Annals of Glaciology
Abbreviated Journal
Volume
55
Issue
68
Pages
351-354
Keywords
Abstract
In the frame of the SUBGLACIOR project, a new type of casing has been installed for testing during the 2013/14 austral summer season at Dome Concordia station, Antarctica. The SUBGLACIOR probe requires a full fluid column up to the surface, in order to circulate fluid for icechips recovery. This makes it essential that the casing is leak-tight through the porous firn column. We have evaluated existing solutions before opting to test a new method. This new system is made of polyethylene pipes which are welded together at the surface while the casing pipes are lowered into the reamed borehole. It is simple and lightweight and allows the casing to be installed quickly with
optimum chance of being leak-tight. The installed casing has been tested both with compressed air and drilling fluids and has proven to work.
Programme
1119
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International Glaciological Society
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Summary Language
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Series Editor
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Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
02603055
ISBN
Medium
Area
Expedition
Conference
Notes
Approved
yes
Call Number
Serial
5932
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