• Elena L. Sosnovskaia
• Arkadii N. Avdeev

УДК 622.831

DOI: 10.21440/0536-1028-2019-8-30-37

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Sosnovskaia E. L., Avdeev A. N. Forecasting potential rockburst hazard of Kholbinsky mine lower horizons. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 8: 30–37 (In Russ.). DOI: 10.21440/0536-1028-2019-8-30-37

ABSTRACT

Introduction. In 2016–2017 the lower horizons of Kholbinsky mine showed harmful rock pressure manifestation in the shape of detachment and caving of rock blocks. There is a critical need to specify geomechanical conditions in the mine in order to estimate the hazard level of currently operating and new mine workings.
Methodology. In the course of the research, a complex of methods and techniques including laboratory experiments on strength and elastic properties of rocks; spatial and statistic analysis of rock jointing; analysis of the level of kern disking in the marginal massif of prospecting holes; in-situ measurement of natural stresses by the method of crack release by the method of IM UB RAS; engineering and mathematical calculations of technogenic stresses in design elements of geotechnologies by proprietary techniques; mathematical modelling by the finite element method; visual observations of mine workings baring stability level, etc.
Results. It has been stated that a massif of rocks of Kholbinskymine lower horizons is caregorized as “nonhazardous”. Mine workings and pillars are in the unstable state. Statistic forms of rock pressure manifestation have been recorded. In order to improve the stability of support systems design elements, a complex of engineering-technical measures is required, including: well-timed extraction floor and intervening pillars; block reserves extraction term reduction; switch to rockburst-safe systems with backfilling; excavation walls supporting with anchors, etc. A final Report on rockbust hazard and gasdynamic manifestations at Zun-Kholba goldmine has been worked out according to the results of the research (2017).

Key words: narrow and large gold lodes; stability; rockburst hazard; mine workings; pillars; physicalmechanical properties of rocks; natural and technogenic stresses.

REFERENCES

1. Pavlov A. M. Improving the technologies of lode goldfields underground mining: monograph. Irkutsk: INRTU Publishing; 2013. (In Russ.)
2. Pavlov A. M., Fedoliak A. A. Improving efficiency of gold deposit underground mining in Eastern Siberia. Izvestiia Sibirskogo otdeleniia RAEN. Geologiia, razvedka i razrabotka mestorozhdenii poleznykh iskopaemykh = Proceedings of the Siberian Department of the Section of Earth Sciences of the Russian Academy of Natural Sciences. Geology, Exploration and Development of Mineral Deposits. 2018; 41; 4(65): 97–106. (In Russ.)
3. Sosnovskaia E. L., Avdeev A. N. The forecast of potential rock bump hazard of steeply pitching lode gold ore deposits. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2016; 2: 74–85. (In Russ.)
4. Zubkov A. V. Geomechanics and geotechnology. Ekaterinburg: UB RAS Publishing; 2001. (In Russ.)
5. Vlokh N. P. Rock pressure control in underground mines. Moscow: Nedra Pushing; 1994. (In Russ.)
6. Neganov V. P. (ed.) Goldfields development technique. Moscow: Nedra Pushing; 1995. (In Russ.)
7. Sosnovskaia E. L., Avdeev A. N. Control over the geomechanical processes at the goldfields of Eastern Siberia. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 5: 21–29. DOI: 10.21440/0536-1028-2019-5-21-29
8. Reddy J. N. An introduction to nonlinear finite element analysis. Oxford: Oxford University Press, 2004. 488 р.
9. Kattan P. I., Voyiadjis G. Z. Damage mechanics with finite elements: practical application with computer tools. Berlin: Springer; 2002. 113 p.
10. Wilhelm Rust. Non-linear finite element analysis in structural mechanics. Switzerland: Springer International Publishing; 2015. 363 p.
11. M. Moatamedi, Hassan A. Khawaja. Finite element analysis. Boca Raton: CRC Press; 2018. 154 p.
12. Sosnovskaia E. L., Vasiliev D. S., Lkhamsuren Biambasuren, Liakhovich V. I. Estimation of stressstrain state of development headings at in-stone development of steeply-pitching ore bodies. Problemy razvitiia mineralnoi bazy Vostochnoi Sibiri = Eastern Siberia Mineral Resource Development Problems. 2016; 16: 56–62. (In Russ.)

Received 12 July 2019

• Batraz S. Tsidaev

УДК 622.276

DOI: 10.21440/0536-1028-2019-8-14-20

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Tsidaev B. S. An integrated approach to hydrocarbons offshore mining optimization in the waters of the northern Caspian sea in difficult geological conditions. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 8: 14–20 (In Russ.). DOI: 10.21440/0536-1028-2019-8-14-20

Abstract

Research aim and objectives. The article highlights the development of the Caspian shelf, identifies prospects and options for further development of oil and gas production in the Caspian.
The aim of the work is to conduct a comprehensive assessment of the new technology of “smart completion”. To achieve the goal, the following tasks were solved: optimization of fluid inflow to the well and prevention of gas from the gas cap and bottom water breakthrough into the well; integrated monitoring and control of the reservoir zones in real time without additional downhole operations.
Research methodology. When drilling horizontal wells undersea, the task of geosteering comes to the fore. It required the integration of seismic data, reservoir tilt measurements, GTI and GIS data and was carried out in real drilling mode. The applied technique provided visualization of the reservoir structure, which allowed for geosteering in accordance with the strategic objectives of the field development. Detailed mapping of bed elements and fluid contacts in real time provides critical information in order to avoid going beyond the reservoir.
Research results and analysis. The inexpediency has been determined of operating with extended lengths of phase-by-phase zones of oil rims with active bottom water without well fluid inflow profiles control devices. This scheme allowed to optimize the profile of well fluid flow into the well, reducing the risks of water and gas premature breakthrough. The solution to this problem, namely the reduction in the volume of breakthrough gas and/or water into the borehole, is through active jointing of zones.
Summary. This complex allows real-time monitoring and control of reservoir zones in the reservoir without additional downhole operations. Thanks to this, the technologies of smart wells provide maximum drainage area of the reservoir and increase oil recovery of the reservoir. An assessment of the new technology of “smart completion” of production wells with long horizontal sections has been carried out.

Key words: shelf; Caspian sea; field; drilling of horizontal wells; geosteering; smart completion.

REFERENCES

1. Eliseev D. V., Kurenov M. V. Combined completion system design model for horizontal wells on Yu. Korchagin off-shore field. Neftegazovoe delo = Oil and Gas Business. 2013; 4: 150–158. (In Russ.)
2. Rakitin M. V. The GTI and GIS on the shelf-problems and prospects. Burenie i neft = Drilling and Oil. 2015; 7–8: 15–18. (In Russ.)
3. Guseinov T. N., Egorova E. V. Technology of ultra-deep mapping of the section during drilling. In: Newest technologies for the development of hydrocarbon deposits and ensuring the safety of ecosystems of the Caspian shelf: Proceedings of the IX International Scientific and Practical Conference, 2018. Astrakhan: ASTU Publishing; 2018. p. 18–23. (In Russ.)
4. Golenkin M. Yu., Latypov A. S. First intelligent multilateral TAML5 wells in the V. Filanovsky field. ROGTEC Russian Oil and Gas Technologies. Available from: https://rogtecmagazine.com/lukoil-firstintellectual- two/?lang=ru [Accessed 13th May 2019]. (In Russ.)
5. Dulaeva E. N., Shakirov R. I. Analysis of decompression zones identified by various methods in carbonate reservoirs of the Bashkir-Serpukhov deposits. In: Geology, development of oil and gas fields: abstracts. Bugulma; 2013. P. 57–58. (In Russ.)
6. Egorova E. V., Kliuev R. V., Bosikov I. I., Tsidaev B. S. Evaluation of use of effective technologies for increasing sustainable development of natural and technical system of oil and gas complex. Ustoichivoe razvitie gornykh territorii = Sustainable Development of Mountain Territories. 2018; 10; 3(37); 392–403. (In Russ.)
7. Bosikov I. I., Klyuev R. V., Revazov V. Ch. Performance evaluation of functioning of natural-industrial system of mining-processing complex with help of analytical and mathematical models. In: IOP Conference Series: Materials Science and Engineering, 2018. 2018 IOP Conf. Ser.: Mater. Sci. Eng. 327 022013.
8. Galkin V. I., Kochneva O. E. Geology and geochemistry of oil and gas. Perm: PNRPU Publishing; 2017. (In Russ.)
9. Norman J. Hyne. Petroleum geology, exploration, drilling, and production. Moscow: Olimp-Biznes Publishing; 2008. (Translation from English)
10. Tang G.-Q. & Morrow N. R. Influence of brine composition and fines migration on crude oil/brine/rock interactions and oil recovery. Journal of Petroleum Science and Engineering. 1999; 111; 24: 99.
11. Wilcox R., Fisk J. Test show shale behavior, aid well planning. Oil and Gas J. 1983; 12/IX; 81; 37.
12. Tagirov K. M. Fastening wells in terms of absorption and gas showering. Gazovaia promyshlennost = Gas Industry. 2001; 3: 48–49. (In Russ.)
13. Gasumov R. A., Minchenko Iu. S. Technological liquids that prevent the migration of reservoir fluids in the annular space during construction wells. Stroitelstvo neftianykh i gazovykh skvazhin na sushe i na more = Construction of Oil and Gas Wells on Land and Sea. 2017; 6: 21–24. (In Russ.)

Received 1 October 2019

• Niiaz G. Valiev
• Viktor K. Bagazeev
• Ivan S. Boikov
• Igor L. Zdorovets

УДК 622.755:622.362.3

DOI: 10.21440/0536-1028-2019-8-21-29

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Bagazeev V. K., Boikov I. S., Valiev N. G., Zdorovets I. L. Sand separation during hydrotransportation. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 8: 21–29 (In Russ.). DOI: 10.21440/0536-1028-2019-8-21-29

Abstract

Introduction. For solid sand particles continuous separation by size and density in the proccessing chain of placer development with suction dredges, it is advisable to use cylindrical hydrocyclones when dredging a deposit.
Research aim is to determine process parameters of small and light particles and heavy minerals secondary separation in cylindrical hydrocyclones when developing placers with dredgers.
Methodology. The paper deals with the problems of throughput and structural dimensions determination and solid particles separation in fat bottom cylindrical hydrocyclones calculation based on the theoretical positions of cylindrical-conical hydrocyclones and laboratory experiments.
Results. The most acceptable analytical dependencies and formulae were selected for the approximate determination of the parameters: throughput (productivity) according to the formula of Modera and Dalstrom; pressure drops with Reynolds and Euler numbers; boundary grain size according to the detailed formula of A. I. Povarov. A laboratory installation of a fat bottom cylindrical hydrocyclone was mounted with characteristics similar to cylindrical hydrocyclones. A sufcient convergence of the calculated parameters with the indicators measured at the laboratory installation of a fat-bottom hydrocyclone is shown with a separation efciency of 54%.
Conclusions. The use of the secondary separation of minerals in cylindrical hydrocyclones will signifcantly increase the efciency of their further dressing.

Key words: dredger; cylindrical hydrocyclone; performance; pressure drop; boundary grain.

REFERENCES

1. Basharov M. M., Sergeeva O. A. Structure and design of hydrocyclones. Kazan: Vestfalika Publiching; 2012. (In Russ.)
2. New reference for a chemist and a production engineer. Processes and devices of chemical technologies. Part 2. St. Petersburg: Mir i semia Publishing; 2006. (In Russ.)
3. Karmazin V. V., Toropov O. A. Theoretical analysis of hydrocyclones process capabilities. Gornyi informatsionno-analiticheskii biulleten (nauchno-tekhnicheskii zhurnal) = Mining Informational and Analytical Bulletin (scientifc and technical journal). 2009; S15 Special edition: 215–228. (In Russ.)
4. Pilov P. I. Mineral gravity separation. Dnepropetrovsk: NSU Publishing; 2010. (In Russ.)
5. Izmailova A. N., Konsetov V. V. Theoretical determination of hydrocyclones fow characteristics. In: Hydrodynamic and heat-mass-exchange processes in chemical equipment. Lenniikhimmash. Proceedings. 1967; 2: 5–40. (In Russ.)
6. Povarov A. I. Hydrocyclones at dressing mills. Moscow: Nedra Publishing; 1978. (In Russ.) Balakhnin I. A. Studying the size of the air column in a cylindrical hydrocyclone. Scientifc Review. 
7. Engineering. 2014; 1: 66. (In Russ.)
8. Golubtsov V. M., Oleinik M. L., Kravchenko D. Iu. On the productivity callculation of a alumina industry hydrocyclone at Zaporizhia aluminium smelter. Metalurgiia: naukovi pratsi ZDIA. 2009: 20: 147–153. (In Russ.)
9. Moder J. A., Dahlstrom D. A. Fine-size, close-specifc-gravity solid separation with the liquid-solid cyclone. Chem. Engng. Progr. 1952; 48 (2): 75–88.
10. Golubtsov V. M. To the calculation of hydraulic resistance of pressure hydrocyclones. Metalurgiia: naukovi pratsi ZDIA. 2010; 22: 191–197. (In Russ.)
11. Gusev A. A. Hydraulic engineering. Moscow: Iurait Publishing; 2013. (In Russ.)
12. Ialtanets I. M. Hydraulic mining reference. Moscow: Gornaia kniga Publishing; 2011. (In Russ.)

Received 28 October 2019

• Aleksandr N. Zemskov
• Aleksandr V. Bekher

УДК 622.647.2

DOI: 10.21440/0536-1028-2019-8-5-13

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Zemskov A. N., Bekher A. V. The future of freight cable cars application in the conditions of the North. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 8: 5–13 (In Russ.). DOI: 10.21440/0536-1028-2019-8-5-13

Abstract Introduction. Freight cable cars (FCC) were widely used in the USSR and other countries in the first part of the 20th century. Only in the USSR the number of FCC amounted to 190 pieces, freight volume – 116 million tons per year, ropeways length – 600 km. Research aim is to define the perspectives of using freight cable cars in the northern regions.
Methodology and results. Comparison of engineering and economic indicators of motor, railway, conveyor transport, and FCC has shown that ropeways have a number of strategic advantages over other ways of transporting solid minerals, especially in the remote northern regions and the Far East. FCC advantages: independence from the surface relief and air conditions, good opportunity to track via the shortest distance between the points of loading and unloading, etc. With the account of the achieved performance targets, FCC can be used to transport from 0.5 to 7 million tons of load per year at a distance of several tens of kilometers. With almost similar capital cost of motor transport and ropeways, FCC have an advantage by a factor of 4–5 as soon as operational costs are concerned.
Summary. Recent Russian engineering and technological solutions (application of rolling stock automated control, new materials, etc.) make it possible to consider FCC the most modern and manufacturable type of solid minerals transportation, which is easily integrated in the concept of the fourth industrial revolution.

Key words: freight cable cars; useful life; area of application; elevation change; transportation economy; automation; prospectiveness.

REFERENCES

1. Hill F. The price of cold. Expert. 2004; 10 (15th–21st March): 72–78.
2. Hill F., Gaddy C. The Siberian сurse. 2003. р. 24–30.
3. Vedin A. T., Petrov Iu. A., Monastyrskii V. F., Zemskov A. N., Akishev A. N., Bakhtin V. A., Montianov S. N., Bondarenko E. V. Rationalle for efficient transportation scheme of kimberlite delivery from the deposit of Zarnitsa pipe to the processing plant no. 12 of ALROSA’s Udachny MPD. In: Proceedings of international science to practice conference “Problems of Quarry Haulage”. Ekaterinburg: IM UB RAS Publishing; 2002. p. 49–55. (In Russ.)
4. Zemskov A. N., Poletaev I. G. Application features of freight cable cars in opencast mining. Gornaia promyshlennost = Mining Industry Journal. 2004; 5: 30–32. (In Russ.)
5. Alexander James Wallis-Tayler. Aerial or wire rope-ways, their construction and management. Book on Demand Ltd, 2013. Р. 121–124.
6. Michael Shaw, David Poyner, Robert Evans. Aerial ropeways of shropshire. Shrophshire Caving & Mining Club, 2015. p. 34–36.
7. Peter von Bleichert. Bleichert's wire ropeways. 2014. p. 97–99.
8. Tarasov P. I., Zyrianov I. V., Tarasov A. P. Multilink articulated lorries in mining. Ekaterinburg: GLime Publishing; 2018. (In Russ.)
9. Zyrianov I. V., Popov D. K. Maintenance standards for process motor transport of PJSC ALROSA. In: Science and innovative solution for the North: proceedings of the 2nd science to practice conference, 14th–15th March 2019. Part 1. Mirny: Mirninskaia tipografiia Publishing; 2019. p. 51–53. (In Russ.)
10. Zemskov A. N., Ivanov A. V. Current trends of the national mining machinery manufacture development. Gornaia promyshlennost = Mining Industry Journal. 2018; 3: 50–53. (In Russ.)
11. Zemskov A. N., Kuznetsov B. A. Freight cable cars application for coal and ore transportation. In: Hi-Tech technologies in minerals processing and application. 2016; 3: 554–557. (In Russ.)
12. Briuzgin A. E., Chernyshev V. V. To the issue of safety of cargo cableways. Bezopasnost truda v promyshlennosti = Occupational Safety in Industry. 2018; 10: 60–65. (In Russ.)

Received 8 May 2019