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N. I. Vasilev
N. I. Vasilev
National Mineral Resources University (University of Mines)
National Mineral Resources University (University of Mines)

Articles

Geology
  • Date submitted
    2021-10-19
  • Date accepted
    2021-11-30
  • Date published
    2021-12-17

Potential technological solution for sampling the bottom sediments of the subglacial lake Vostok: relevance and formulation of investigation goals

Article preview

The subglacial Lake Vostok in Antarctic is a unique natural phenomenon, its comprehensive study involves sampling of water and bottom surface rocks. For further study of the lake, it is necessary to drill a new access well and develop environmentally safe technologies for its exploration. This article discusses existing and potential technologies for sampling bottom surface rocks of subglacial lakes. All these technologies meet environmental safety requirements and are conducive for sampling. The authors have proposed an alternative technology, using a walking device, which, due to its mobility, enables selective sampling of rocks across a large area from a single access well. The principal issues, related to the implementation of the proposed technology, are investigated within this article. This report is prepared by a team of specialists with many years of experience in drilling at the Vostok Station in Antarctic and in experimental work on the design of equipment and non-standard means of mechanization for complicated mining, geological and climatic conditions.

How to cite: Bolshunov A.V., Vasiliev N.I., Timofeev I.P., Ignatiev S.A., Vasiliev D.A., Leichenkov G.L. Potential technological solution for sampling the bottom sediments of the subglacial lake Vostok: relevance and formulation of investigation goals // Journal of Mining Institute. 2021. Vol. 252. p. 779-787. DOI: 10.31897/PMI.2021.6.1
Mining
  • Date submitted
    2016-11-21
  • Date accepted
    2017-01-23
  • Date published
    2017-04-25

Prospects of obtaining samples of bottom sediments from subglacial lake Vostok

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The paper proves the timeliness of obtaining and examining bottom sediments from subglacial Lake Vostok. Predictive geological section of Lake Vostok and information value of bottom sediments have been examined. Severe requirements towards environmental security of lake examinations and sampling of bottom sediments rule out the use of conventional drilling technologies, as they would pollute the lake with injection liquid from the borehole. In order to carry out sampling of bottom sediments from the subglacial lake, it is proposed to use a dynamically balanced tool string, which enables rotary drilling without any external support on borehole walls to transmit counter torque.     A theoretical analysis has been carried out to assess the operation of the tool string, which is a two-mass oscillatory electromechanical system of reciprocating and rotating motion (RRM) with two degrees of freedom.

How to cite: Vasilev N.I., Leichenkov G.L., Zagrivnyi E.A. Prospects of obtaining samples of bottom sediments from subglacial lake Vostok // Journal of Mining Institute. 2017. Vol. 224. p. 199. DOI: 10.18454/PMI.2017.2.199
Geology
  • Date submitted
    2015-08-21
  • Date accepted
    2015-10-24
  • Date published
    2016-02-01

Results of the 5G borehole drilling at russian antarctic station «Vostok» and researches of ice cores

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We produce an information about results and features of the 5G borehole drilling in Antarctic layer at Russian station Vostok. Main regularities of the change structured and physical properties by Antarctic ice layer depth, which determine mechanical and reological properties if ice, which influence to sinking of a borehole and to the maintaining of it in a working condition, the safe and competitive technologies creation for drilling of strong ice layers and the environmentally safe technology of the subglacial reservoirs unsealing. We also produce results of the ice cores researching and the paleoclimatic raws construction, which are reconstructed by the ice cores researching from Vostok station, which is compared with isotopic graph. This graph describes changes of World ocean level.

How to cite: Vasilev N.I., Dmitriev A.N., Lipenkov V.Y. Results of the 5G borehole drilling at russian antarctic station «Vostok» and researches of ice cores // Journal of Mining Institute. 2016. Vol. 218. p. 161.
Present-day problems of geological exploration and well drilling
  • Date submitted
    2011-09-29
  • Date accepted
    2011-11-07
  • Date published
    2012-03-01

Rock-destroying tool development for ice well drilling

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In this paper results of experimental studies of ice cutting  process  with  using cutter  type bits are presented. The bit operation, ranges of rational value of bit taper and rate of penetration  are analysed. Reasons causing complications during drilling well in ice deeper then 3000m are determined on the basis well drilling in Vostok station and Dom C and possible ways to overcome them.

How to cite: Litvinenko V.S., Vasilev N.I. Rock-destroying tool development for ice well drilling // Journal of Mining Institute. 2012. Vol. 197. p. 15.
Applied and fundamental research in physics and mathematics
  • Date submitted
    2009-09-16
  • Date accepted
    2009-11-15
  • Date published
    2010-03-01

Directional drilling in ice caps

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Directional drilling technology can be used in glacier boreholes to obtain additional ice cores and to pass over sticking drills. Experimental sidetracking of 5G-2 hole in the deep borehole at Vostok station, Antarctica, showed the high efficiency of the directional drilling without using of special whip-stocks to deviate the hole.

How to cite: Vasiliev N.I., Talalay P.G., Dmitriev A.N., Yankilevich S.V., Prokazov A.A., Lipenkov V.Y. Directional drilling in ice caps // Journal of Mining Institute. 2010. Vol. 187. p. 31-35.
Applied and fundamental research in physics and mathematics
  • Date submitted
    2009-09-27
  • Date accepted
    2009-11-18
  • Date published
    2010-03-01

Environmental problems оf waste water utilization at gas field development

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One of the main factors of environment contamination on the gas industry ventures is waste water. To improve the ecological situation at gas fields the joint purification, treatment and flooding of associated liquid, industrial and domestic waste water into lost circulation horizons is proposed.

How to cite: Vasiliev N.I., Talalay P.G., Talalay G.P., Tsvetkov N.A. Environmental problems оf waste water utilization at gas field development // Journal of Mining Institute. 2010. Vol. 187. p. 36-39.
Diagnostics and control of technical systems and their elements. New technologie
  • Date submitted
    2007-11-22
  • Date accepted
    2008-01-24
  • Date published
    2008-05-01

Elimination of complications and accidents during deep well drilling in glaciers

Article preview

In spite of the certain success in ice drilling technology, there are enough accident examples of the deep coring in so-called warm ice, which is characterized by the increasing of ice crystals and has temperatures closed to the pressure melting point. The generally accepted recommendations for choosing of rational drilling parameters in such ice don’t exist. The low reliability of the drilling process as often as not resulted to the one of the most severe accident in the hole – sticking of the core drills. The effective accident elimination is possible due to the ice dissolving in the sticking zone by the delivery in this zone of the solvent active to ice, for example, ethylene glycol or its aqueous solution.

How to cite: Vasiliev N.I., Talalay P.G., Zubkov V.M., Krasilev A.V., Zubkov M.V. Elimination of complications and accidents during deep well drilling in glaciers // Journal of Mining Institute. 2008. Vol. 178. p. 181-187.
Mining engineering technologies. Diagnostics and control of technical systems and their elements. New technologies
  • Date submitted
    2003-07-28
  • Date accepted
    2003-08-16
  • Date published
    2004-02-01

Specifics of designing equipment for drilling wells in glaciers

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The peculiarities of design of technical means intended for drilling wells in glaciers are considered. Polar and high-mountain regions of the Earth are characterized by a unique combination of unfavorable conditions for practical activity, therefore, besides general requirements for design of technical means, special requirements for weight and dimensions, power consumption and operational characteristics of used materials are made. Specific technical solutions of drilling room constructions, means of lowering and lifting and auxiliary operations, as well as measures aimed at reduction of material and energy intensity of drilling operations on glaciers are presented.

How to cite: Vasilev N.I., Talalai P.G., Savatyugin L.M. Specifics of designing equipment for drilling wells in glaciers // Journal of Mining Institute. 2004. Vol. 157. p. 153-156.
Without section
  • Date submitted
    2000-07-14
  • Date accepted
    2000-08-03
  • Date published
    2001-02-01

Experimental studies on ice cutting

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In order to drill "dry" wells in snow-firn and ice strata, the SPbSMI (TU) Department of Drilling Technology and Technology is developing a technology of mechanical drilling with bottom-hole air circulation to remove cuttings. The electromechanical drilling tool for drilling with bottom-hole air blowout is similar to the previously developed KEMS-112* drilling tool for drilling deep wells filled with filling fluid.

How to cite: Vasilev N.I., Zubkov V.M. Experimental studies on ice cutting // Journal of Mining Institute. 2001. Vol. № 2 148. p. 130-133.
Without section
  • Date submitted
    2000-07-11
  • Date accepted
    2000-08-04
  • Date published
    2001-02-01

Fundamentals of Aseptic Baring of Subglacial Lake Vostok

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Ecologically safe penetration into the subglacial Lake Vostok discovered in the depth of 3,700 m in East Antarctica (more than 10,000 km2 , hypothetically freshwater and containing relict life forms) requires development of new methods, technologies and technical means of drilling.

How to cite: Kudryashov B.B., Dmitriev A.N., Vasilev N.I. Fundamentals of Aseptic Baring of Subglacial Lake Vostok // Journal of Mining Institute. 2001. Vol. № 2 148. p. 155-161.
Without section
  • Date submitted
    2000-07-25
  • Date accepted
    2000-08-25
  • Date published
    2001-02-01

Research and development of advanced technologies of drilling wells in complicated conditions

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The primary results of the research and engineering work of the Department of Technology and Technique of Well Drilling, carried out and completed in 2000, are presented. The main result of drilling long wells in the ice of Antarctica is the development of the project of environmentally safe opening of the subglacial Lake Vostok, a unique natural phenomenon, the complex study of which is of the greatest interest to the world scientific community. A 505 m long well with full core recovery was drilled on the Academy of Sciences glacier (Severnaya Zemlya archipelago) in the framework of the international environmental program PEGAIS. Geophysical measurements were carried out in the well. A new method of tubeless casing and sealing of anomalous intervals using a fusible binding material and a thermal plugging penetrator was developed. Basic theoretical and technological principles of liquidation plugging of hydrogeological wells with the use of economical and environmentally safe cementing mortar based on cheap mineral waste were developed. Effectively conducted research and experimental developments on the combined heat and hydrodynamic effects on low-productive sands to increase oil and gas production wells, clarified the laws of the hydro and foam core. New applied programs for PC were formed, allowing to increase adequacy of data and to expand the field of application in evaluation of regulation and stabilization of circulation and heat exchange processes during well sinking and development.

How to cite: Litvinenko V.S., Kudryashov B.B., Nikolaev N.I., Nifontov Y.A., Chistyakov V.K., Shelkovnikov I.G., Yakovlev A.M., Kozlov A.V., Vasilev N.I., Zubkov V.M., Dmitriev A.N., Solovev G.N., Talalai P.G., Nikishin V.V., Taninskii P.Y., Tsygelnyuk E.Y. Research and development of advanced technologies of drilling wells in complicated conditions // Journal of Mining Institute. 2001. Vol. 147. p. 30-47.
Without section
  • Date submitted
    1992-07-09
  • Date accepted
    1992-09-28
  • Date published
    1993-01-01

Гидравлические сопротивления перемещению бурового снаряда на кабеле в скважине при выполнении спуско-подхемных операций

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Глубокое буренИе ледовых отложений в Арктике и Антарктике осущест­вляется, в основном, электромеханическими к электротермическими буровыми снарядами на грузонесущем кабеле ...

How to cite: Vasilev N.I., Kudryashov B.B. // Journal of Mining Institute. 1993. Vol. 136. p. 14.
Without section
  • Date submitted
    1987-08-19
  • Date accepted
    1987-10-16
  • Date published
    1988-02-01

Результаты стендовых экспериментальных исследований процесса бурения льда механическим буровым снарядом КЭМС-112

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Большую роль при исследованиях ледниковых покровов в полярных облас­тях и высокогорных районах играет бурение скважин, проводимое в основном при помощи тепловых и электромеханических буровых снарядов на грузонесу щем кабеле ...

How to cite: Vasilev N.I., Talalai P.G., Ufaev V.V. // Journal of Mining Institute. 1988. Vol. 116. p. 82.
Without section
  • Date submitted
    1985-08-28
  • Date accepted
    1985-10-05
  • Date published
    1986-02-01

Оптимизация зубчатых пар по уровням напряжений и удельных скольжений зубьев на блокирующих контурах

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В практике проектирования зубчатых передач все больше внимания уде­ляется современным методам оценки качественных характеристик зацепления. Получает распространение автоматизация сложных расчетов геометрии, кине­матики и особенно трудоемких расчетов на прочность зубчатых пар ...

How to cite: Vasilev N.I., Ivanov I.P. // Journal of Mining Institute. 1986. Vol. 108. p. 17.
Without section
  • Date submitted
    1974-07-13
  • Date accepted
    1974-09-09
  • Date published
    1975-01-01

Расчеты коэффициентов формы корригированных зубьев колес

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В большинстве современных машин зубчатые передачи являются основ­ными узлами, влияющими на работоспособность, надежность и стоимость машин. В проектировании зубчатых передач важное значение имеют расче­ты их на прочность ...

How to cite: Ivanov I.P., Vasilev N.I. // Journal of Mining Institute. 1975. Vol. № 1 69. p. 93.