Deep drilling at Vostok station, Antarctica: history and recent events

Title Deep drilling at Vostok station, Antarctica: history and recent events
Publication Type
Journal Article
Year
2007
Author(s) Nikolay I Vasiliev , Pavel Talalay, Bobin NE, Chistyakov VK, Zubkov VM, Krasilev AV, Dmitriev AN, Yankilevich SV, Volodya Ya Lipenkov
Journal/ Publication
Annals of Glaciology
Volume
47
Pagination
10-23
Abstract

Deep drilling into the ice sheet at Vostok station, Antarctica, was started by specialists of the Leningrad Mining Institute (since 1991, St Petersburg State Mining Institute) in 1970. Five deep holes were cored: hole No. 1 to 952 m; hole No. 2 to 450.4 m; hole No. 3G (3G-1, 3G-2) to 2201.7 m; hole No. 4G (4G-1, 4G-2) to 2546.4 m; and hole No. 5G (5G-1) to 3650.2 m depth. Drilling of hole 5G-1 is not yet complete. The deep drilling at Vostok station has had successes and problems. All the deep holes at Vostok have undergone at least one offset drilling operation because of problems with lost drills. These deviations were made successfully using a thermal drilling technique. Several drilling records have been achieved at Vostok station. The deepest dry hole, No. 1 (952 m), was made during Soviet Antarctic Expedition (SAE) 17 in 1972. The deepest fluid-filled hole, No. 5G-1, made by a thermal drill (TBZS-132), reached 2755 m during SAE 38 in 1993. The deepest fluid-filled hole in ice, No. 5G-1, was drilled with a KEMS-132 electromechanical drill and was stopped above Vostok Subglacial Lake at 3650.2 m depth during Russian Antarctic Expedition (RAE) 51 in 2006.

DOI
10.3189/172756407786857776
URL
Special Collections History of Ice Drilling/Coring, International Workshop on Ice Drilling Technology Series, 6th International Workshop on Ice Drilling Technology
Categories Deep Drilling, Subglacial Access, Thermal Drilling, Warm Ice
Equipment Electrothermal (ET/ETED/ATED) Drills, KEMS / TELGA / TBZS drills
Citation Nikolay I Vasiliev , Pavel Talalay, Bobin NE, Chistyakov VK, Zubkov VM, Krasilev AV, Dmitriev AN, Yankilevich SV, Volodya Ya Lipenkov ( 2007 ) Deep drilling at Vostok station, Antarctica: history and recent events. Annals of Glaciology , 47 , 10-23 . doi: 10.3189/172756407786857776
Lead Author
Nikolay I Vasiliev