Mechanical drilling of glaciers with bottom-hole scavenging with compressed air
Forecasting of the Earth's climate change is important for many spheres of human activity but this cannot be successful without reliable paleoclimatic information, an important source of which is the ice core material obtained during drilling of glaciers. The process of core sampling from the u...
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Nauka
2022
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Online Access: | https://doi.org/10.31857/S2076673422010114 https://doaj.org/article/d66f9051e1344b19a2fc6e18759ebe9d |
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ftdoajarticles:oai:doaj.org/article:d66f9051e1344b19a2fc6e18759ebe9d 2023-05-15T13:44:26+02:00 Mechanical drilling of glaciers with bottom-hole scavenging with compressed air A. V. Bolshunov D. A. Vasilev S. A. Ignatiev A. N. Dmitriev N. I. Vasilev 2022-02-01T00:00:00Z https://doi.org/10.31857/S2076673422010114 https://doaj.org/article/d66f9051e1344b19a2fc6e18759ebe9d RU rus Nauka https://ice-snow.igras.ru/jour/article/view/948 https://doaj.org/toc/2076-6734 https://doaj.org/toc/2412-3765 2076-6734 2412-3765 doi:10.31857/S2076673422010114 https://doaj.org/article/d66f9051e1344b19a2fc6e18759ebe9d Лëд и снег, Vol 62, Iss 1, Pp 35-46 (2022) центральная антарктида механическое бурение кабель сжатый воздух критическая скорость керн снег фирн Science Q article 2022 ftdoajarticles https://doi.org/10.31857/S2076673422010114 2023-03-19T01:40:08Z Forecasting of the Earth's climate change is important for many spheres of human activity but this cannot be successful without reliable paleoclimatic information, an important source of which is the ice core material obtained during drilling of glaciers. The process of core sampling from the upper permeable snow-firn layers of glaciers is complicated by huge losses of the drilling fluid. One of the possible solutions to this problem is using of compressed air to clean the borehole and transport the slime up to the surface due to its easy replenishment. A review and analysis of international experience in mechanical ice drilling using compressed air as a cleaning agent has shown that the method under consideration has a number of disadvantages (loss of air in permeable glacier layers, accumulation of heavy rime and formation of ice sticking) that limit its use. However, the scheme of air reverse bottom-hole air circulation, first applied by scientists from the St. Petersburg Mining University on the dome of the Academy of Sciences Glacier (the Severnaya Zemlya archipelago) is free of the above disadvantages. To adapt this method to conditions of drilling in Antarctica, it is necessary to carry out a complex of researches, the implementation of which will allow creating a new cable-suspended electromechanical drill for efficient and environmentally friendly drilling of the upper layers of glaciers. Article in Journal/Newspaper Antarc* Antarctica ice core Severnaya Zemlya Антарктида Directory of Open Access Journals: DOAJ Articles Rime ENVELOPE(6.483,6.483,62.567,62.567) Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Ice and Snow 62 1 35 46 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
центральная антарктида механическое бурение кабель сжатый воздух критическая скорость керн снег фирн Science Q |
spellingShingle |
центральная антарктида механическое бурение кабель сжатый воздух критическая скорость керн снег фирн Science Q A. V. Bolshunov D. A. Vasilev S. A. Ignatiev A. N. Dmitriev N. I. Vasilev Mechanical drilling of glaciers with bottom-hole scavenging with compressed air |
topic_facet |
центральная антарктида механическое бурение кабель сжатый воздух критическая скорость керн снег фирн Science Q |
description |
Forecasting of the Earth's climate change is important for many spheres of human activity but this cannot be successful without reliable paleoclimatic information, an important source of which is the ice core material obtained during drilling of glaciers. The process of core sampling from the upper permeable snow-firn layers of glaciers is complicated by huge losses of the drilling fluid. One of the possible solutions to this problem is using of compressed air to clean the borehole and transport the slime up to the surface due to its easy replenishment. A review and analysis of international experience in mechanical ice drilling using compressed air as a cleaning agent has shown that the method under consideration has a number of disadvantages (loss of air in permeable glacier layers, accumulation of heavy rime and formation of ice sticking) that limit its use. However, the scheme of air reverse bottom-hole air circulation, first applied by scientists from the St. Petersburg Mining University on the dome of the Academy of Sciences Glacier (the Severnaya Zemlya archipelago) is free of the above disadvantages. To adapt this method to conditions of drilling in Antarctica, it is necessary to carry out a complex of researches, the implementation of which will allow creating a new cable-suspended electromechanical drill for efficient and environmentally friendly drilling of the upper layers of glaciers. |
format |
Article in Journal/Newspaper |
author |
A. V. Bolshunov D. A. Vasilev S. A. Ignatiev A. N. Dmitriev N. I. Vasilev |
author_facet |
A. V. Bolshunov D. A. Vasilev S. A. Ignatiev A. N. Dmitriev N. I. Vasilev |
author_sort |
A. V. Bolshunov |
title |
Mechanical drilling of glaciers with bottom-hole scavenging with compressed air |
title_short |
Mechanical drilling of glaciers with bottom-hole scavenging with compressed air |
title_full |
Mechanical drilling of glaciers with bottom-hole scavenging with compressed air |
title_fullStr |
Mechanical drilling of glaciers with bottom-hole scavenging with compressed air |
title_full_unstemmed |
Mechanical drilling of glaciers with bottom-hole scavenging with compressed air |
title_sort |
mechanical drilling of glaciers with bottom-hole scavenging with compressed air |
publisher |
Nauka |
publishDate |
2022 |
url |
https://doi.org/10.31857/S2076673422010114 https://doaj.org/article/d66f9051e1344b19a2fc6e18759ebe9d |
long_lat |
ENVELOPE(6.483,6.483,62.567,62.567) ENVELOPE(98.000,98.000,79.500,79.500) |
geographic |
Rime Severnaya Zemlya |
geographic_facet |
Rime Severnaya Zemlya |
genre |
Antarc* Antarctica ice core Severnaya Zemlya Антарктида |
genre_facet |
Antarc* Antarctica ice core Severnaya Zemlya Антарктида |
op_source |
Лëд и снег, Vol 62, Iss 1, Pp 35-46 (2022) |
op_relation |
https://ice-snow.igras.ru/jour/article/view/948 https://doaj.org/toc/2076-6734 https://doaj.org/toc/2412-3765 2076-6734 2412-3765 doi:10.31857/S2076673422010114 https://doaj.org/article/d66f9051e1344b19a2fc6e18759ebe9d |
op_doi |
https://doi.org/10.31857/S2076673422010114 |
container_title |
Ice and Snow |
container_volume |
62 |
container_issue |
1 |
container_start_page |
35 |
op_container_end_page |
46 |
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1766201674979868672 |