Submit an Article
Become a reviewer
Vol 148 No 2
Pages:
174-176
Download volume:
RUS
Research article
Without section

Issues in mechanical ice drilling

Authors:
I. G. Shelkovnikov
About authors
  • St. Petersburg State Mining Institute
Date submitted:
2000-07-01
Date accepted:
2000-08-09
Date published:
2001-02-01

Abstract

Drilling of the ice cover in different areas of the globe, and, above all, in Antarctica and Greenland, attracts the scientific community mainly by the opportunity to study the history of the Earth's development using mineral and biological inclusions. Large ice columns, accumulated over many millennia, preserve inclusions, which can be used to judge, in particular, about possible cataclysms on the planet in different periods of its life, microbiological and other changes in its development. Such inclusions can be mineral dust particles, microorganisms in their various forms, plant spores, contained in drilling ice cores, lifted from various depths of wells. Such boreholes are penetrated either by melting ice with an annular heating tool, inside which a column of ice core remains, or by mechanical rotary method, in which ice is broken by a cutting downhole tool in the form of a bladed drill bit with a central hole for core penetration. Let us dwell in more detail on the mechanism of ice breaking during drilling by this method.

Go to volume 148

Similar articles

Technology of explosive demolition of an industrial high-rise building with a metal bearing frame
2001 P. A. Filippov, A. P. Gaidin, I. V. Mashukov, L. M. Tsinker
Calculation of the main parameters of drilling and blasting operations in the explosion of selective detonating explosive charges
2001 ZH. G. Dambaev, A. V. Zditovetskii, V. N. Kovalevskii
Theoretical basis of an express method of explosive fracture assessment based on seismic signal parameters
2001 S. V. Lukichev
Damping plate parts test of the moving cover
2001 E. B. Shevkun, N. A. Leonenko
Determination of strength and abrasiveness of rocks by the spectrum of acoustic noise during drilling and cutting
2001 A. G. Arkhipov
Fracture energy capacity as a criterion for stability of building clay backfill
2001 L. K. Gorshkov, S. V. Naumov