123

 

ISSN 0536-1028 (Print)              ISSN 2686-9853 (Online)  
УДК 622.272 DOI: 10.21440/0536-1028-2021-8-5-14


Download

 

 

Relevance. At present, during the transition from open pit to underground mining at iron ore deposits, the most widespread technology is the sublevel caving with frontal ore drawing. This technology has significant drawbacks, namely low ore extraction indicators and increased operating costs for preparatory work and stoping. The development of an alternative technology for the upper sublevel mining, which ensures high extraction indicators, active ore drawing, and lower prime cost of the main flow processes in the presence of an internal dump used as a rock cushion on the quarry floor, is an urgent scientific and technical task.
Research objective is to study the mining factors effect on the technical and economic indicators of differing technologies for mining the upper sublevel under the rock cushion at the iron ore deposits.
Research methods. The work uses a comprehensive research method, including the search and design of a rational version of technology, economic and mathematical modeling, and technical and economic comparison. Analysis of the results. The dependences of the main technical and economic indicators (losses and dilution, the specific volume of preparatory development works, labor productivity and specific operating costs for flow processes) on the height of the upper sublevel between 40 and 100 m and mine capacity between 0.8 and 2.4 million tonnes of ore per year. It has been determined that the operating costs for ore mining have a minimum value under a height of the upper sublevel of 80 m and a production capacity of 1.6 million tonnes of ore per year, which is optimal for an enterprise during the transition period.
Conclusions. The technology of sublevel open stoping with the subsequent rib pillar development by a system of induced block caving has been substantiated, which far more efficient as compared to the traditional version of sublevel caving.

Keywords: iron ore deposit; transition zone; rock cushion; mining system; mining factors; extraction indicators; technical and economic indicators.

Acknowledgements. The research has been carried out within the framework of the state contract no. 075-00581-19-00, theme no. 0405-2019-0005.

REFERENCES

  1. Sokolov I. V., Smirnov A. A., Antipin Iu. G., Nikitin I. V. Scientific aspects of choosing the geotechnical strategy for mining of transition areas while combined mining of ore deposits. Problemy nedropolzovaniia = The Problems of Subsoil Use. 2020; 1(24): 11–17. Available from: doi: 10.25635/2313- 1586.2020.01.011 (In Russ.)
  2. Kaplunov D. R., Leizerovich S. G., Tomaev V. K., Sidorchuk V. V. About further development of mining works in Kursk Magnetic Anomaly basin. Gornyi zhurnal = Mining Journal. 2011; 10: 44–49. (In Russ.)
  3. Kalmykov V. N., Gavrishev S. E., Burmistrov K. V., Gogotin A. A., Petrova O. V., Tomilina N. G. New underground mining approaches justification for the Maliy Kuybas open pit mining operations. Gornyi informatsionno-analiticheskii biulleten (nauchno-tekhnicheskii zhurnal) = Mining Informational and Analytical Bulletin (scientific and technical journal). 2013; 4: 132–139. (In Russ.)
  4. Golik V. I., Polukhin O. N. Use of the mineral resources of kma toward ecologization of society. Problemy regionalnoi ekologii = Regional Environmental Issues. 2013; 4: 45–49. (In Russ.)
  5. Sakantsev G. G. Internal piling at deep ore pits. Ekaterinburg: UB RAS Publishing; 2008. (In Russ.)
  6. Sokolov I. V., Smirnov A. A., Antipin Iu. G., Nikitin I. V., Tishkov M. V. Substantiation of protective cushion thickness in mining under open pit bottom with the caving methods at Udachnaya pipe. Fizikotekhnicheskie problemy razrabotki poleznykh iskopaemykh = Journal of Mining Science. 2018; 2: 52–62. Available from: doi 10.15372/FTPRPI20180207 (In Russ.)
  7. Lobanov E. A., Eremenko A. A. Development of podcarrier ore resources of Oleniy ruchey deposit. Vestnik Kuzbasskogo gosudarstvennogo tekhnicheskogo universiteta = Bulletin of the Kuzbass State Technical University. 2021; 4(146): 86–95. Available from: doi: 10.26730/1999-4125-2021-4-86-95 (In Russ.)
  8. Neverov S. A., Konurin A. I., Shaposhnik Iu. N. Safety in substoping-and-caving in tectonically stressed rock masses. Interekspo Geo-Sibir = Interexpo GEO-Siberia. 2021; 2(3): 311–321. Available from: doi: 10.33764/2618-981X-2021-2-3-311-321 (In Russ.)
  9. Shamiev Zh. B., Alibaev A. P. The technology of pit reserves combined mining by the sublevel caving system with slicing and frontal ore drawing through the slot. Sovremennye problemy mekhaniki sploshnykh sred = Current Issues of Continuum Mechanics. 2010; 12: 62–70. (In Russ.)
  10. Sokolov I. V., Smirnov A. A., Antipin Iu. G., Nikitin I. V., Baranovskii K. V. Underground geotechnology for thick iron-ore deposit combined mining. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2014; 7: 25–32. (In Russ.)
  11. Mazhitov A. M. Assessment of the extent of man-induced transformation of a subsoil block in upward mining using ore and host rock caving. Gornaia promyshlennost = Mining Industry. 2021; 4: 113–118. Availabel from: doi: 10.30686/1609-9192-2021-4-113-118 (In Russ.)
  12. Lovitt M. Evolution of sublevel caving – safety improvement through technology. The AusIMM Bulletin. 2016; April: 82–85.
  13. Quinteiro C. Design of a new layout for sublevel caving at depth. In: Proceedings of the Fourth International Symposium on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth. 2018. P. 433–442. Available from: doi.org/10.36487/ACG_rep/1815_33_Quinteiro
  14. Mijalkovski S., Despodov Z., Mirakovski D., Adjiski V. Methodology for optimization of coefficient for ore recovery in sublevel caving mining method. Podzemni Radovi. 2017; 30: 19–27. Available from: doi.org/10.5937/podrad1730019S
  15. Savich I. N., Mustafin V. I. Perspectives of use and rationale design solutions of block (level) and sublevel face draw. Gornyi informatsionno-analiticheskii biulleten (nauchno-tekhnicheskii zhurnal) = Mining Informational and Analytical Bulletin (scientific and technical journal). 2015; S1: 419–429. (In Russ.)
  16. Pourrahimian Y., Askari Nasab H., Tannant D. A multi-step approach for block-cave production scheduling optimization. International Journal of Mining Science and Technology. 2013; 23: 739–750. Available from: doi: 10.1016/j.ijmst.2013.08.019
  17. Afum B. O., Ben-Awuah E. A review of models and algorithms for surface-underground mining options and transitions optimization: some lessons learnt and the way forward. Mining. 2021; 1: 112–134. Available from: doi.org/10.3390/mining1010008
  18. MacNeil J. A. L., Dimitrakopoulos R. G. A stochastic optimization formulation for the transition from open pit to underground mining. Optimization and Engineering. 2017; 18: 793–813. Available from: doi: 10.1007/s11081-017-9361-6
  19. Whittle D., Brazil M., Grossman P., Rubinstein H., Thomas D. Combined optimisation of an openpit mine outline and the transition depth to underground mining. European Journal of Operational Research. 2018; 268(2): 624–634. Available from: doi: 10.1016/j.ejor.2018.02.005
  20. King B., Goycoolea M., Newman A. Optimizing the open pit-to-underground mining transition. European Journal of Operational Research. 2017; 257(1): 297–309.
  21. Dagdelen K., Traore I. Open pit transition depth determination through global analysis of open pit and underground mine production scheduling. Advances in Applied Strategic Mine Planning. 2018. P. 287–296. Available from: doi: 10.1007/978-3-319-69320-0_19
  22. Soltani A., Osanloo M. Semi-symmetrical production scheduling of an orebody for optimizing the depth of transitioning from open pit to block caving. Resources Policy. 2020; 68. Available from: doi: 10.1016/j.resourpol.2020.101700
УДК 622.245.1 DOI: 10.21440/0536-1028-2021-8-15-23


Download

 

 

Research objective is to determine the results of ice impact on the polymer operating string and adjacent rock mass in the most probable type of computational model that considers the asymmetry of the load imposed by water refreezing in the casing string annulus. The solution to this problem makes it possible to consider the possibility of using polymer pipes in permafrost.
Research relevance is conditioned by the known facts of water freezing in the casing string annulus at low temperatures. In practice, water freezing causes significant deformations and damage operating strings and pipe joints creating emergency situations that can disrupt flow processes.
Research methods. The finite element method is used to calculate the polymer operating string, placed in the rock mass. The proposed method considers the asymmetry of the load imposed on the pipe and uses a lot of parameters to create the computational model. The method makes it possible to include pipe, ice and adjacent rock mass in the computational model considering their properties.
Research results establish the degree of non-uniform loading effect on pipe’s deformation, strength and stability. Pipe calculation results for the conditions of symmetric and asymmetric compression by ice are compared. The results of using a nonlinear model of rock are considered. A significant impact of the composition of rocks around the well has been revealed. The conditions have been determined in which polymer pipes can bear the load during refreezing under asymmetric arrangement of the pipe in the well.

Keywords: ice compression; refreezing; permafrost; well; operating string; loading asymmetry

 

REFERENCES

1. Ivanov A. G., Solodov I. N. Selection of casing material for in-situ leach wells. Gornyi zhurnal =
Mining Journal. 2018; 7: 81–85. Available from: doi: 10.17580/gzh.2018.07.16 (In Russ.)
2. Stovmanenko A. Iu., Anushenkov A. N. Perspectives of using pipelines from polymer materials
during transportation of cast packing filled mixtures. Izvestiia Uralskogo gosudarstvennogo gornogo
universiteta = News of the Ural State Mining University. 2016; 4(44): 68–71. Available from: doi:
10.21440/23072091-2016-4-68-71 (In Russ.)
3. Khrulev A. S. Well-drilling hydraulic technology: issues and options. Vestnik Rossiiskoi akademii
estestvennykh nauk = Bulletin of the Russian Academy of Natural Sciences. 2013; 5: 51–54. (In Russ.)
4. Makariev L. B., Tsaruk I. I. Mineral resource base of the uranium of the southern margin of the
Siberian Platform. In: Uranium: geology, resources, and production: Proceedings of the 4th Internat.
Symposium, 28–30 November 2017. Moscow: VIMS Publishing; 2017. p. 60–61. (In Russ.)
5. Wang F., Song Z., Cheng X., Ma H. Patterns and features of global uranium resources and production.
Earth and Environmental Science: IOP Conf. Ser.: Institute of Physics Publishing. 2017; 94: 1–7.
6. World distribution of uranium deposits (UDEPO) with uranium deposit classification. IAEA,
Vienna, 2009. Printed by the International Atomic Energy Agency in Austria. 2009. 126 p.
7. Magnin F., Etzelmuller B., Westermann S., Isaksen K., Hilger P., Hermanns R. Permafrost
distribution in steep rock slopes in Norway: measurements, statistical modelling and implications for
geomorphological processes. Earth Surface Dynamics. 2019; 7: 1019–1040. Available from: https://doi.
org/10.5194/esurf-7-1019-2019
8. Westermann S., Ostby T. I., Gisnas K., Schuler T. V., Etzelmüller B. A ground temperature map of
the North Atlantic permafrost region based on remote sensing and reanalysis data. The Cryosphere. 2015;
9: 1303–1319.
9. Obu J., Westermann S., Bartsch A., Berdnikov N., Christiansen H., Dashtseren A., Delaloye R.,
Elberling B., Etzelmuller B., Kholodov A., Khomutov A., Kaab A., Leibman M., Lewkowicz A., Panda S.,
Romanovsky V., Way R., Westergaard-Nielsen A., Wu T., Yamkhin J., Zou D. Northern Hemisphere
permafrost map based on TTOP modelling for 2000–2016 at 1 km2 scale. Earth-Science Reviews. 2019;
193: 299–316. Available from: https://doi.org/10.1016/j.earscirev.2019.04.023
10. Tao J., Koster R., Reichle R., Forman B., Xue Y., Chen R., Moghaddam M. Permafrost variability
over the Northern Hemisphere based on the MERRA-2 reanalysis. The Cryosphere. 2019; 13: 2087–2110.
Available from: https://doi.org/10.5194/tc-13-2087-2019
11. Radin A. I. The distinguishing features of wells with TDS in the permafrost zone. In: New ideas in
the Earth sciences: Proceedings of the 14th Internat. Sci. Pract. Conf. Moscow: RSUH Publishing. 2019.
4. P. 293–294. (In Russ.)
12. Zverev G. V., Tarasov A. Iu. Calculation and analysis of the influence of permafrost on well no. 338
fixing of Vankorskoe field during operation. Vestnik Permskogo natsionalnogo issledovatelskogo
politekhnicheskogo universiteta. Geologiia. Neftegazovoe i gornoe delo = Perm Journal of Petroleum and
Mining Engineering. 2013; 8: 41–51. (In Russ.)
13. Arsentiev Iu. A., Nazarov A. P., Zabaikin Iu. V., Ivanov A. G. Calculation of polymer operating
strings for the conditions of the permafrost. Actual problems and prospects of economic development:
Russian and foreign experience. 2019; 21: 27–32. (In Russ.)
14. Kuznetsov V. G. Methods and technology for improving well lining durability in the permafrost
(problems and solutions): DSc in Engineering abstract of diss. Tyumen; 2004. (In Russ.)
15. Leonov E. G., Zaitsev O. Iu. Calculating phases content and pressure at aqueous media freezing at
the casing string annulus and the tubing-casing annulus at freezing. Stroitelstvo neftianykh i gazovykh
skvazhin na sushe i na more = Construction of Oil and Gas Wells on Land and Sea. 2005; 1: 10–16.
(In Russ.)
16. Stetiukha V. A., Zhelezniak I. I. Methodology for calculating the stability of the polymer operating
string in permafrost. Zapiski Gornogo instituta = Journal of Mining Institute. 2020; 241: 22–28. Available
from: doi: 10.31897/PMI.2020.1.22 (In Russ.)
17. Khademi Zahedi R., Shishesaz M. Application of a finite element method to stress distribution in
burried patch repaired polyethylene gas pipes. Underground Space. 2019; 4(1): 48–58. Available from:
https://doi.org/10.1016/j.undsp.2018.05.001
18. Kamarainen J. Studies in ice mechanics. Helsinki: Helsinki University of Technology; 1993.
19. Bychkovskii N. N., Gurianov Iu. A. Icy construction sites, road, and crossings. Saratov: SSTU
Publishing; 2005. (In Russ.)
20. Rudov S. E., Shapiro V. Ia., Grigoriev I. V., Kunitskaia O. A., Grigorieva O. I. Mathematical
modeling of compacting process of the frozen soil under the influence of forest machines and logging
systems. Sistemy. Metody. Tekhnologii = Systems. Methods. Technologies. 2018; 3(39): 73–78. Available
from: doi: 10.18324/2077-5415-2018-3-73-78 (In Russ.)

УДК 550.837 DOI: 10.21440/0536-1028-2021-8-34-44


Download

 

Introduction. The paper considers the theory and interpretation of pulse induction sounding that includes the formation measurement of the magnetic field created by a vertical magnetic dipole (VMD) over a layered medium or S-plane.
Research methods. A spectral calculation method with the numerical Fourier sine transform of the spectral function density was applied to study the non-stationary formation of the field. For the case of a homogeneous conducting half-space with the non-conducting upper half-space, it has been shown that magnetic field frequency and time characteristics change similarly, i.e. decrease equally, as the observation point depth increases.
Research results. The pulsed mode of changing the source current in the near-field zone of low frequencies or long transient periods, which are of primary interest in studying the geological section conducting properties, does not have advantages over the harmonic mode. By analyzing the behavior of a field with a source in the form of a vertical magnetic dipole, it is possible to formulate its limiting frequency and time cases. The nature of the magnetic field formation curve revealed that magnetic induction extrema values do not depend on the specific electrical resistance of the medium. However, their position in time is determined by the distance to the dipole and medium resistivity. For the known spacing for remote sounding, the dependence between the magnetic field extremum time and the medium resistivity is a way to estimate it.
Conclusions. In this work, the apparent resistivity for typical layered cross-sections of two-layer and three-layer media was calculated. It has been shown that the results for dipole magnetic field time and harmonic characteristics correspond to one another when studying inhomogeneous layered geoelectric sections.

Keywords: non-stationary electromagnetic field; remote inductive sensing; vertical magnetic dipole;
apparent electrical resistance.
REFERENCES
1. Veshev A. V. Double current electric profiling. Moscow: Nauka Publishing; 1980. (In Russ.)
2. Gasanenko L. B. The field of vertical harmonical magnetic dipole over the surface of the multilayer
structure. Uchenye zapiski LGU. Voprosy geofiziki = Scientific Papers of the Leningrad State University.
Geophysics. 1959; 278: 164–173. (In Russ.)
3. Zaborovskii A. I. Alternating electromagnetic fields in electrical prospecting. Moscow:
MSU Publishing; 1960. (In Russ.)
4. Kraev A. P. The fundamentals of geoelectrics. Leningrad: Nedra Publishing; 1965. (In Russ.)
5. Zhdanov M. S. Electromagnetic theory and methods. Moscow: Nauchnyi mir Publishing, 2012.
(In Russ.)
6. Svetov B. S. The fundamentals of geoelectrics. Moscow: LKI Publishing; 2008. (In Russ.)
7. Kaufman A. A., Morozova G. M. Theoretical fundamentals of a near-field transient sounding
method. Novosibirsk: Nauka Publishing; 1970. (In Russ.)
8. Mogilatov V. S. Impulse geoelectrics. Novosibirsk: RITs NGU Publishing; 2014. (In Russ.)
9. Rabinovich B. I., Mogilatov V. S. Nonstationary field of submerged vertical magnetic dipole.
Geologiia i geofizika = Russian Geology and Geophysics. 1981; 3: 88–100. (In Russ.)
10. Sidorov V. A. Impulse inductive electrical prospecting. Moscow: Nedra Publishing; 1985.
(In Russ.)
11. Obukhov G. G. Some properties of non-stationary electromagnetic fields in the earth, and their
application in electrical prospecting. 1968; 9: 62–71. (In Russ.)
12. Bhattacharyya B. K. Electromagnetic fields of a transient magnetic dipole on the earth’s surface.
Geophysics. 1959; 24(1): 89–108.
13. Christensen N. B. Imaging of transient electromagnetic soundings using a scaled Frechet
derivative. In: Inverse methods interdisciplinary elements of methodology, сomputation and application.
Lecture notes in Earth sciences. Berlin: Heidelberg: Springerverlag, 1996. Vol. 20. P. 205–214.
14. Pracser E. Fast computing of transient electromagnetic field on the surface of a layered halfspace.
Geofizikai Kozlemenyek. 1992; 37(2–3): 159–176.
15. Wait J. R. Electromagnetic response of a thin layer. Electronics Letters. 1986; 22(17): 898–899.
16. Sheinman S. M. Formation of electromagnetic fields in the Earth. Prikladnaia geofizika = Applied
Geophysics. 1947; 3: 3–55. (In Russ.)
17. Vanian L. L. Fundamentals of electromagnetic sounding. Moscow: Nedra Publishing; 1965.
(In Russ.)
18. Ratushniak A. N., Teplukhin V. K. Theoretical and experimental fundamentals of induction survey.
Ekaterinburg: UB RAS Publishing; 2017. (In Russ.)
19. Arzamastsev E. V., Astafiev P. F., Baidikov S. V., Konoplin A. D., Ratushniak A. N. Inductive
sounding of layered earth. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher
Institutions. Mining Journal. 2020; 4: 21–31. (In Russ.)

УДК 551.2.05 DOI: 10.21440/0536-1028-2021-8-24-33


Download

 

Introduction. The Arctic and the Far East shelf has a true and considerable potential for existing and new oil and gas fields development in the Barents, Kara, and Okhotsk seas. Projects on the continental shelf are closely connected to Russia’s integrated development and quality of life, therefore being of prime national importance. The paper considers natural and man-induced hazards found in the course of exploration drilling and offshore field infrastructure development in freezing seas and high crustal seismicity. Risk management and industrial safety technologies are described in the paper.
Research objective is to obtain reliable information on the state of the environment and mineral resourses on the continental shelf of Arctic and Subarctic seas to ensure the safety of offshore oil and gas field development.
Methods of research included the complex analysis of natural hazards of the Russian shelf, including shallow methane, gas hydrates, ice load, and man-induced hazards, namely offshore blowouts, gas lenses penetration when drilling, and permafrost thawing. The data from geological engineering survey, marine electrical prospecting, geophysical well logging, drilling and the history of offshore field development have been studied.
Research results. A problem of safe offshore operations has been revealed. The problem may be efficiently solved by using advanced technologies for natural and man-induced hazard identification and prevention. Shallow gas deposited in the upper part of the section has been discovered for the first time through the results of geophysical well logging at the fields of the Gulfs of Ob and Taz.
Conclusions. Safe offshore production requires the comprehensive study of the project area’s natural and climatic conditions, as well as geological engineering survey, marine work data analysis, and deep hole surveys. It will make it possible to identify hazardous natural geological processes and prevent man-induced impact on the delicate environment when developing shelf oil and gas resources.

Keywords: shelf; drilling; offshore fields; field infrastructure development; man-induced hazard; natural hazard; oil and gas resources; gas hydrates; shallow gas; permafrost.

 

REFERENCES

1. Korteleva Iu. V. On the prospects and risks of offshore projects in Russia. Colloquium Journal.
2021; 13(100): 37–38. (In Russ.).
2. Melnikov P. N., Varlamov A. I., Skvortsov M. B., Agadzhaniants I. G., Kravchenko M. N.,
Grushevskaia O. V. Development of the oil and gas resource base in the Arctic and continental shelf.
In: RAO CIS Offshore: Proceeding of 15th International Exhibition and Conference for Oil and Gas
Resources Development of the Russian Arctic and Continental Shelf. St. Petersburg; 2021: 218. (In Russ.).
3. Dziublo A. D. Geological and geophysical studies and models of natural reservoirs in the Barents-
Kara region in order to increase the resource base of hydrocarbons: DSc in Geology and Mineralogy diss.
Moscow; 2009. (In Russ.).
4. Dziublo A. D., Alekseeva K. V., Perekrestov V. E., Xiang Hua. Natural and technogenic
phenomena during development of oil and gas fields on the shelf of the arctic seas. Bezopasnost truda v
promyshlennosti = Occupational Safety in Industry. 2020; 4: 74–81. Available from: doi: 10.24000/0409-
2961-2020-4-74-81 (In Russ.).
5. Bogoyavlensky V. I., Kishankov A. V. Dangerous gas-saturated objects in the world ocean: the
Bering sea. Burenie i neft = Drilling and oil. 2018; 9: 4–12. (In Russ.).
6. Suryanarayana P. V., Bogdanovic M., Pathy K. T., Paimin M. R. Assessing the impact of shallow
gas hydrate dissociation on structural integrity in deepwater wells. In: International Petroleum Technology
Conference, Virtual. March 2021. Available from: doi: https://doi.org/ 10.2523/IPTC-21464-MS
7. Sun B., Zhang Z. Challenges and countermeasures for the drilling and completion of deepwater
wells in the South China Sea. Petroleum Drilling Techniques. 2015; 43(4): 1–7. Available from: doi:
10.11911/syztjs.201504001
8. Bogoiavlenskii V. I., Mazharov A. V., Pushkarev V. A., Bogoiavlenskii I. V. Gas emissions from
the Yamal peninsula permafrost areas. preliminary results of the expedition dated 8th July 2015. Burenie i
neft = Drilling and oil. 2017; 7-8: 8–13. (In Russ.).
9. Magomedgadzhieva M. A. Designing the infrastructure development for cluster-pads in severe
permafrost conditions. Proektirovanie i razrabotka neftegazovykh mestorozhdenii = Design and
Development of Oil and Gas Fields. 2017; 2: 4–18. (In Russ.)
10. Zhdaneev O. V., Frolov K. N., Konygin A. E., Gekhaev M. R. Exploration drilling on the Russian
Arctic and Far East shelf. Arktika: ekologiia I ekonomika = Arctic: ecology and economics. 2020; 3(39):
112–125. (In Russ.)
11. Bogatyreva E. V. Problems of increasing safety in the development of fields on the Arctic shelf.
Zashchita okruzhaiushchei sredy v neftegazovom komplekse = Environmental Protection in Oil and Gas
Complex. 2004; 5: 9–13. (In Russ.).
12. Petrenko V. E., Mirzoev D. A., Bogatyreva E. V. Problems of studying marine environmental factors
and creation of oil- and gas-field engineering structures for the development of the Arctic continental shelf.
Stroitelstvo neftianykh i gazovykh skvazhin na sushe i na more = Construction of Oil and Gas Wells on
Land and Sea. 2020; 1(325): 51–54. (In Russ.).
13. Dziublo A. D., Savinova M. S. Hazardous natural processes and risks at offshore fields development
with the use of subsea production of hydrocarbons. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal
= News of the Higher Institutions. Mining Journal. 2020; 8: 5–13. (In Russ.)
14. Khalifeh M., Saasen A. Introduction to permanent plug and abandonment of wells. Stavanger:
Springer International Publishing; 2020. Available from: doi: 10.1007/978-3-030-39970-2
15. White J., Berry G. Emergency response planning for subsea hydrocarbon release using advanced
engineering analysis. In: Abu Dhabi International Petroleum Exhibition and Conference. Abu Dhabi,
UAE, November 10–13. 2014. Available from: doi: https://doi.org/10.2118/172123-MS

УДК 622.44 DOI: 10.21440/0536-1028-2021-8-45-54


Download

 

Research relevance. The article proves the advisability of applying high-speed axial fan systems by aerodynamic configuration with one impeller for gas air-cooling units. 
Objective and methods of research. Equations for the efficiency factor of a fan system and a fan depending on flow kinematics and fan system geometry have been obtained by mathematically analyzing axial flow turbomachine main regularities.
Results. Based on the optimization theory, the formulae for maximum efficiency factor for a fan and a fan system of various specific speeds have been obtained depending on the flow coefficient and the impeller hub ratio. The method of creating the axial fan system aerodynamic configuration has been proposed for the K-type gas air-cooling units with the limiting maximum values of the efficiency factor for the prescribed values of the specific speed, impeller hub ratio, lift-to-drag ratio of the impellor profiles, airflow resistance coefficient of the flow channel, and the flow coefficient. The capability was shown to create the fan system with a speed exceeding 400 and efficiency of not less than 0.86.
Keywords: fan system; flow channel; input elements; output elements; efficiency factor; specific speed; lift-to-drag ratio; air-flow resistance coefficient.

 

REFERENCES

1. Abakumov A. M., Migachev A. V., Stepashkin I. P. Research of control system of apparatus of air
cooling of natural gas. Izvestiia vuzov. Elektromekhanika = Russian Electromechanics. 2016; 6: 130–134.
(In Russ.)
2. Rubtsova I. E., Mochalkin D. S., Kriukov O. V. (ed.) Basic directions and tasks of energy
conservation when reconstruct a compressor station. Compressor station equipment energy conservation
and automation: monograph. Vol. 3. Nizhny Novgorod: Vektor TiS Publishing; 2012. (In Russ.)
3. Abakumov А. М., Stepashkin I. P. Research of the adaptive automatic control system at the natural
gas air-cooling unit. IEEE Xplorе. 2017. Available from: doi: 10.1109/ ICIEAM.2017.8076297
4. Khvorov G. A., Iumashev M. V. Analysis of energy-saving technologies for gas cooling based on
air cooling units for gas transport at Gazprom PJSC. Territoriia “NEFTEGAZ” = Oil and Gas Territory.
2016; 9: 127–132. (In Russ.)
5. Kalinin A. F., Fomin A. V. Evaluating the effectiveness of air-cooler modes. Trudy RGU nefti i
gaza imeni I. M. Gubkina = Proceedings of Gubkin Russian State University of Oil and Gas. 2011; 4(265):
131–139. (In Russ.)
6. Torshizi S. A. М., Benisi А., Durali M. Multilevel optimization of the splitter blade profile in the
impeller of a centrifugal compressor. Scientia Iranica. 2017; 24: 707–714.
7. Brusilovskii I. V. Aerodynamic analysis of axial fans. Moscow: Mashinostroenie; 1986. (In Russ.)
8. Mao Y. F. Numerical study of correlation between the surge of centrifugal compressor and the
piping system. PhD in Engineering diss. Xi’an Jiaotong University, Xi’an. 2016.
9. Wu D., Yin K., Yin Q., Zhang X., Cheng J., Ge D., Zhang P. Reverse circulation drilling method
based on a supersonic nozzle for dust control. Applied Sciences (Switzerland). 2017; 7(1): 5–20. Available
from: https://doi.org/10.3390/app7010005
10. Lifanov A. V., Materov A. Iu., Makarov V. N., Serkov S. A., Makarov N. V. Perspective way to
improve the complex efficiency of air-cooling equipment. Neft. Gaz. Novatsii = Oil. Gas. Novation. 2020;
4(233): 14–17. (In Russ.)
11. Loitsanskii L. G. Fluid mechanics. Moscow: Drofa Publishing; 2003. (In Russ.)
12. Migachev A. V., Potemkin V. A., Stepashkin I. P. Parametric identification of gas air cooling device
as a controlling object. In: Current studies in humanities, natural and social sciences: Proceedings of the
8th All-Russian Research-to-Practice Conference with International Participation. Novosibirsk: TsRSNI
Publishing; 2016. p. 23–28. (In Russ.)
13. Abakumov A. M., Migachev A. V., Potemkin V. A., Stepashkin I. P. Estimating energy efficiency
of gas temperature automatic control system at compressor stations. In: Problems of Power Generation in
Oil and Gas Sector: Proceedings of Internat. Research-to-Practice Conference Ashirov Readings. Vol. 2.
Samara: SPI Publishing; 2016. p. 292–295. (In Russ.)
14. Kosarev N. P., Makarov N. V., Makarov V. N. A method of increasing pressure and efficiency of
propeller turbomachines. Patent RF no. 2482337; 2013. (In Russ.)
15. Makarov V. N., Boiarskikh G. A., Valiev N. G., Makarov N. V., Dyldin G. P. Turbomachine criteria
for similarity of natural size proportionality. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal =
News of the Higher Institutions. Mining Journal. 2020; 8: 81–89. (In Russ.)

Language

E-mail

This email address is being protected from spambots. You need JavaScript enabled to view it.

Мы индексируемся в: