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EXPERIENCE OF HYDRAULIC BOREHOLE MINING OF GOLD PLACERS BURIED IN PERMAFROST



The article discusses prospects, advantages, shortcomings and process flow sheets of hydraulic gold mining from thick and thin placers buried in permafrost. The geological conditions of placers, as well as equipment and its designs are described. The results of commercial and semi-commercial gold extraction from a buried placer in the Experimental mine (Kolyma) and from a buried coastal placer at the Ryveem river in the area of the former Polyarninsky Mining and Processing Plant are analyzed. The applied HBM technology used water jet monitoring of pay zone in a free chamber and hydraulic elevator of gold-bearing sand to the surface. Gold sand processing involved sluicing with gateway of deep filling. The technology of gold HBM in thick permafrost is based on thawing of frozen rocks by warm water and air lift of thawed material to the surface. The depth of mining is restricted by the depth of occurrence of permafrost. In case of far placers with difficult access, it is proposed to recover fine gold using the underground voids formed by HBM for in-situ leaching of gold from sluice tailings after HBM and from old mining waste.

: 1
2019
ISBN: 0236-1493
УДК: 52.13.15:70.85.49
DOI: 10.25018/0236-1493-2019-01-0-26-35
Authors: Arens V. J., Fazlullin M. I., Khrulev A. S., Khcheyan G. H.

Authors' Information:
Arens V.J., Doctor of Technical Sciences,
Vice-President of the Academy of natural Sciences (RAEN), Moscow, Russia,
Fazlullin M.I., Doctor of Technical Sciences, General Director, NPP «Geotep»,
Khrulev A.S., Doctor of Technical Sciences, Moscow, Russia,
Khcheyan G.H., Doctor of Technical Sciences, Moscow, Russia,
e-mail: mogmsraen@mail.ru.

Key words:
Buried placers, permafrost, hydraulic borehole mining, water jet monitor, water jet elevator, air lift, placer buried in permafrost.

References:

1. Arens V. Zh., Khcheyan G. Kh., Babichev N. I., Khrulev A. S., Bashkatov A. D., Gridin O. M. Skvazhinnaya gidrodobycha poleznykh iskopaemykh [Hydraulic borehole mining], Moscow, Izd-vo «Gornaya kniga», 2011, 293 p.


2. Aksyutin O. E., Kazaryan V. A., Ishkov A. G., Khloptsov V. G., Teplov M. K., Khrulev A. S., Savich O. I., Surin S. D. Stroitel'stvo i ekspluatatsiya rezervuarov v mnogoletnemerzlykh osadochnykh porodakh [Construction and operation of reservoirs in permafrost sediments], Moscow-Izhevsk, Institut komp'yuternykh issledovaniy, 2013, 432 p.


3. Nitsevich O. A., Tsurlo E. N., Yanushenko A. P. Opyt opredeleniya ob"ema i formy dobychnoy kamery pri skvazhinnoy gidrodobyche [Experience of determining size and shape of gold extraction chamber in hydraulic borehole mining], Gornyy zhurnal. 2011, no 2. [In Russ].


4. Bagazeev V. K., Valiev N. G., Simisinov D. I. Fiziko-mekhanicheskoe obosnovanie gidravlicheskogo razrusheniya porod pri skvazhinno-gidravlicheskoy razrabotke rossypnykh mestorozhdeniy [Physical and mechanical justification of destruction of rocks by water in hydraulic borehole mining of placers], Gornyy zhurnal. 2015, no 12, pp. 25—27. [In Russ].


5. Drobadenko V. P., Malukhin N. G., Vil'mis A. L. Problemy i perspektivy skvazhinnoy gidrodobychi poleznykh iskopaemykh [Problems and prospects of hydraulic borehole mining], Zolotodobycha. 2011, no 155, pp. 17—19. [In Russ].


6. Arens V. Zh., Khcheyan G. Kh., Khrulev A. S. Skvazhinnaya gidrodobycha peskov s khozyaystvennym ispol'zovaniem obrazovavshikhsya podzemnykh pustot v usloviyakh vechnoy merzloty [Hydraulic borehole mining of gold and efficient use of resultant underground voids in the conditions of permafrost], Gornyy zhurnal. 2013, no 10, pp. 79—82. [In Russ].


7. Britan I. V. Sostoyanie skvazhinnoy gidrodobychi. Krizis ili nedal'novidnost'? [State-of-the-art of hydraulic borehole mining. Crisis or shortsightedness?], Nedropol'zovanie 21 vek. 2013, no 6 (43), pp. 46—51. 
[In Russ].


8. Rochev V. F. O vozmozhnosti primeneniya skvazhinnoy gidrodobychi na zolotonosnykh rossypyakh Yuzhnoy Yakutii [Applicability of hydraulic borehole mining in placers in South Yakutia], Gornyy zhurnal. 2016, no 9, pp. 50—53. [In Russ].


9. Surin S. D., Savich O. I. Razvitie tekhnologii stroitel'stva i ekspluatatsii podzemnykh rezervuarov v mnogoletnemerzlykh porodakh [Technology of construction and operation of underground reservoirs in permafrost], Materialy pyatoy konferentsii geokriologov Rossii. MGU im. M.V. Lomonosova, vol. 1], Moscow, 2016, pp. 151—157. [In Russ].


10. Bondarev E. A., Rozhin I. I., Popov V. V., Argunova K. K.The possibility of storage of gas hydrates in underground reservoirs in MMP. Kriosferazemli, 2015, Vol. XIX, No 4, pp. 64—74.


11. Bondarchuk I. B., Shenderova I. V. Classification of hydraulic borehole mining technological processes during pay zone development. Published under licence byIOP Publishing Ltd. IOP Conference Series: Earth and Environmental Science, Vol. 24, conference 1.


12. Simpson Antony Positive Preliminary Evaluation of Borehole Mining at the Hansen Uranium Deposit. 2012. www.asx.com.au/asxpdf/20120213/pdf/4249l4sksggk96.pdf.


13. Kinley Exploration, 2018. www.hydraulicboreholemining.com.


14. Colin B. Kinley, Andrew Mac Ewen Hydraulic borehole mining system and method, Patent WO 2015057657 A1. Espacenet, 2015.


15. RCS Group of Companies. Jet Boring/Borehole Mining. 2018. http://rcsenergy.ca/jet-boring-borehole-mining/


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