Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia

Log In   /  Register




Advanced Search

2016 year, number 6

1.
Hydraulic Fracturing for In Situ Stress Measurement

S. V. SERDYUKOV, M. V. KURLENYA, A. V. PATUTIN
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: массив горных пород, напряженное состояние, скважинные исследования, метод гидроразрыва, трещина, измерение напряжений, давление запирания, устройство гидроразрыва, ошибка измерений, rock mass, stress state, borehole investigations, hydraulic fracturing, fracture, stress measurement, shut-in pressure, hydraulic fracturing facility, measurement error

Abstract >>
It is experimentally found that shut-in pressure conforms with the fracture initiation pressure if fracture surfaces are uniformly loaded by fluid. The article shows that equaling minimal stress and shut-in pressure in local fractures results in overestimates. The error depends on the length of a hydrofracturing facility and is high under low compression in rocks (5-10 MPa). The authors put forward decisions aimed at improvement of accuracy and enhancement of information content of hydraulic fracturing in the in situ stress measurement.



2.
Experimental Research into Thermomechanical Effects at Linear and Nonlinear Deformation Stages in Rock Salt Specimens under Cyclic Loading

V. I. SHEININ1, D. I. BLOKHIN1,2, I. B. MAKSIMOVICH1, E. P. SARANA1
1Gersevanov Research Institute of Bases and Underground Structures, 2-ya Institutskaya ul. 6, Moscow, 109428 Russia
2National University of Science and Technology-MISIS, Leningradskii pr. 4, Moscow, 119049 Russia
Keywords: геоматериалы, каменная соль, циклическое нагружение, осевые напряжения, осевые деформации, инфракрасное излучение, геомеханический мониторинг, geomaterials, rock salt, cyclic loading, axial stress, axial strain, infrared radiation, geomechanical monitoring

Abstract >>
The authors discuss capabilities of taking information on mechanical processes in geomaterials under post-limiting elastic deformation based on variation in IR radiation intensity. Experimental results on recording of heat emission from specimens of rock salt exposed to cyclic loading by uniaxial compression are reported. It is concluded that thermomechanical effects are useful in recording of onset of failure activation in geomaterials under cyclic loading.



3.
Influence of Injection of Thermogel on Oil Displacement by Waterflooding

N. K. KORSAKOVA1, V. I. PEN’KOVSKY1, L. K. ALTUNINA2, V. A. KUVSHINOV2
1Lavrentiev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrentieva 15, Novosibirsk, 630090 Russia
2Institute of Chemistry of Oil, Siberian Branch, Russian Academy of Sciences, Akademicheskii pr. 4, Tomsk, 634021 Russia
Keywords: увеличение нефтеотдачи, вязкая нефть, капиллярное запирание, гели, заводнение пласта, enhanced oil recovery, viscous oil, capillary attraction shutting-off, gels, waterflooding

Abstract >>
The article describes physical simulation and mathematical modeling of influence exerted by injection of thermogel on configuration of water flow in water flood recovery. Recovery of oil, especially viscous oil, with such method features unstable displacement front and formation of water fingers that eventually turn into a net of water channels directed toward the lowest flow coefficient between wells. Most of oil remains immobile and is in dynamic equilibrium with the displacement water flow. The authors show that injection of thermogel in a reservoir between wells expands displacement front at the late stage of mining, which allows enhancement of oil recovery factor.



4.
Laser Deformograph in Integrated Geodynamic Monitoring within Streltsov Ore Field

I. YU. RASSKAZOV1, G. I. DOLGIKH2, V. A. PETROV3, V. A. LUGOVOI1, S. G. DOLGIKH2, B. G. SAKSIN1, D. I. TSOI4
1Institute of Mining, Far East Branch, Russian Academy of Sciences, ul. Turgeneva 51, Khabarovsk, 680000 Russia
2Ilichev Pacific Oceanological Institute, Far East Branch, Russian Academy of Sciences, ul. Baltiiskaya 43, Vladivostok, 690043 Russia
3Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Russian Academy of Sciences, per. Staromonetnyi 35, Moscow, 119017 Russia
4, ul. Turgeneva 51, Khabarovsk, 680000 Russia
Keywords: техногенная сейсмичность, геомеханический мониторинг, лазерный деформограф, напряженно-деформированное состояние, деформационное поле, induced seismicity, geomechanical monitoring, laser deformograph, stress state, deformation field

Abstract >>
The authors describe operation of a laser deformograph within the integrated geodynamic monitoring system in Streltsov Ore Field. Capabilities and design features of the deformograph are discussed. The article demonstrates feasibility of highly accurate measurements of deformation field parameters in an operating mine. Specificity of natural oscillations of the Earth is defined, and deformation of rock mass depending on energy of a destruction source is evaluated.



5.
Wave Pre-Destruction of Solid Rocks under Blasting

A. N. KOCHANOV, V. N. ODINTSEV
Institute of Integrated Mineral Development-IPKON, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
Keywords: горная порода, камуфлетный взрыв, упругая волна, растяжение породы, микротрещины, волновое предразрушение, скорость детонации, rock, confined explosion, elastic wave, tension, microcracks, wave pre-destruction, detonation velocity

Abstract >>
Considering features of wave pre-destruction (microfailure) of rocks under blasting, the authors put forward a new investigation approach with the use of relations of dynamic elastic stress distribution in rocks and theory of cracks. The obtained relation to estimate pre-destruction zone size in relatively solid rocks under confined explosion involves pressure of gases in explosion chamber, rock pressure, crack resistance of rocks, characteristic dimension of natural jointing (presence of defects) and deformation characteristics of rocks. It is shown that dimension of pre-destruction zone in rocks depends both on natural and production factors and can differ by a few times.



6.
Intensification of Nonlinearity by Dispersed Events in Media with Structure and Generation of Various Dominant Frequencies in P- and S-Waves

B. P. SIBIRYAKOV1, E. B. SIBIRYAKOV2
1Trofimuk Institute of Oil and Gas Geology and Geophysics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090 Russia
2Novosibirsk State University, ul. Pirogova 1, Novosibirsk, 630090 Russia
Keywords: оператор сплошности, микроструктура, солитоны, различие частот P- и S-волн, continuity operator, microstructure, soliton waves, different frequencies of P- and S-waves

Abstract >>
A model of a continuum with a structure described by infinite order equations of motion is proposed. In case that a wave is very long as compared with the size of the structure, equations are reduced to the fourth-order equations. A closed equation of motion, including nonlinear, dispersed and wave members, is derived. It is shown that solutions in the form of soliton waves exist only in media where wave velocity grows with pressure. In the media, where soliton waves do not exist, quasi-stationary solutions with multiple frequencies prevail. It is found that the nonlinear effect of multiple frequencies is unexpectedly high even for small deformation as dispersion violently intensifies nonlinear events. Moreover, in the domain of small deformation, there exist solutions for longitudinal and transversal waves with the same length and different frequencies. The solutions for the same length waves with different frequencies most often occur in seismology and seismic explorations.



7.
Quantitative Estimate of Rotary-Percussion Drilling Efficiency in Rocks

V. N. OPARIN, V. V. TIMONIN, V. N. KARPOV
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: количественный показатель эффективности, разрушение горных пород, погружной пневмоударник, буровой станок, ударно-вращательное бурение скважин, волны маятникового типа, безразмерное энергетическое условие, структура, напряженно-деформированное состояние, quantitative index of efficiency, rock destruction, downhole air drill hammer, drilling rig, rotary-percussion hole drilling, pendulum waves, dimensionless energy criterion, structure, stress state

Abstract >>
The factors that have significant influence on efficiency of rotary-percussion rock drilling with downhole machines are discussed. The results obtained in physical simulation of dynamic driving of rock-breaking indenters in rocks are reported. The results are analyzed from the standpoint of the phenomenon of alternating response of rocks to dynamic impacts.



8.
Enhancement of Long Hole Drilling Efficiency with Drilling Units with Replaceable Core Receivers

A. L. NEVEROV1, A. V. MINAKOV1,2, V. A. ZHIGAREV1, D. D. KARATAEV3
1Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, 660041 Russia
2Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrentieva 1, Novosibirsk, 630090 Russia
3Norilskgeologiya, P.O. Box 889, Norilsk, 663330 Russia
Keywords: математическая модель, неньютоновская жидкость, гидравлические потери давления, нестандартный алмазный породоразрушающий инструмент, mathematical model, non-Newtonian fluid, hydraulic pressure loss, nonstandard diamond drill bit

Abstract >>
The article presents a procedure to calculate hydraulic pressure losses in hole drilling with units equipped with replaceable core receivers and using non-Newtonian mud fluids. It is found that main hydraulic loss takes place when mud fluid flows in clearing between a drill string and drill hole walls. Numerical modeling has shown that it is possible to reduce hydraulic pressure loss by 76.5-89.0% by increasing drill string diameter by 2 mm. Based on the analytical research results, diamond drill bits and underreamers with the outer diameters of 78.0 and 78.4 mm, respectively, are manufactured for drilling operations in Talnakh ore field.



9.
Small-Size Downhole Air Drill Hammers of Increased Capacity

A. A. REPIN1, V. V. TIMONIN1, S. E. ALEKSEEV1, D. I. KOKOULIN1, A. I. POPELYUKH2
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Novosibirsk State Technical University, pr. K. Marksa 20, Novosibirsk, 630092 Russia
Keywords: бурение, пневмоударник, мощность, рабочая площадь, термообработка, титановые сплавы, цементация, drilling, air drill hammer, capacity, effective area, thermal treatment, titnium alloys, cementation

Abstract >>
Authors review key approaches to designing small-size air drill hammers. The approach to increasing impact capacity of air drill hammers by means of buildup of blow frequency is substantiated. The experimentally obtained and compared characteristics of air drill hammers equipped with the heads made of steel and titanium prove feasibility of increasing impact capacity by means of using low density materials. The technology of thermal treatment of a titanium-alloy hammer head is described, and its laboratory testing results are reported.



10.
Identification of Load to Dog Heading Support during a Rockburst

A. NIEROBISZ
Central Mining Institute, pl. Gwarkуw 1, 40-166 Katowice, Poland
Keywords: горная промышленность, крепи выработок, горный удар, экспериментальные результаты, mining industry, heading support, rockbolt support, rockburst, test results

Abstract >>
This paper presents the methods and test results of the dynamic resistance of chock and rockbolt support used in Poland. By the dynamic resistance of the support is meant the ability to absorb and suppress the fast changing with time load with the value frequently exceeding the working support capacity of the supports. This feature is required when using the support in excavations endangered by rock mass tremors, especially such tremors, which can result in rockbursts. Based on the carried out studies and analyses, numerical values of loads are given that cause the slide of a friction prop, bending the support sections, loss of stability of dog heading support and load-carrying ability of bolts.



11.
Determination of Open Pit Diamond Mine Limits with Regard to Stripping Time Difference

V. L. YAKOVLEV1, I. V. ZYRYANOV2, A. N. AKISHEV2, G. G. SAKANTSEV1
1Institute of Mining, Ural Branch, Russian Academy of Sciences, ul. Mamina-Sibiryaka 58, Ekaterinburg, 620075 Russia
2Yakutniproalmaz Institute, ALROSA, ul. Lenina 39, Mirny, 678174 Republic of Sakha (Yakutia), Russia
Keywords: границы карьера, граничный коэффициент вскрыши, коэффициент дисконтирования, высота зоны вскрышных работ, скорость их понижения, угол наклона рабочих бортов, open pit mine limits, utlimate stripping ratio, discountiing coefficient, stripping zone height, stripping rate decrease, highwall slope

Abstract >>
The analysis of methods to account for stripping time difference at the stage of determination of limits in deep open pit mining reveals advantages and shortcomings of the methods and provides a principled approach to determination of a discount ultimate stripping ratio for the most representative geological and geotechnical conditions of diamond-bearing ore bodies in the form of single pipes. Discounting of ultimate stripping ratios is based on adding the common formula with an average mean discount coefficient represented by a correlation of mining rate decrease, stripping zone height and highwall slope angle. It is shown that target variation of the factors included in the discount ultimate stripping ratio allows considerable influence on depth and efficiency of open pit mining.



12.
Technology of Abandoned Ore-Drawing Using Canopies

V. I. GOLIK
Geophysical Institute, Vladikavkaz Science Center, Russian Academy of Sciences, ul. Markova 93a, Vladikavkaz, 362002 Russia
Keywords: недра, потерянные руды, порода, технология, разделяющие перекрытия, теоретическое обобщение, механизм работы, условия применения, качество сырья, subsoil, abandoned ore, rocks, technology, canopy, theoretical generlization, operating pricniple, application conditions, mineral quality

Abstract >>
The author characterizes ore production loss depending on time, properties and production technology. Typification of technologies aimed at improvement of ore-drawing quality using canopies is performed. Operating principle of canopies is theoretically generalized, and recommendations on using canopies are made. It is proved that separation of abandoned ore from overlying rocks under canopies during ore-drawing improves mineral production quality.



13.
Optimal Combination Technology for High-Grade Quartz Production Based on Modeling

I. V. SOKOLOV, A. A. SMIRNOV, YU. G. ANTIPIN, K. V. BARANOVSKY, A. A. ROZHKOV
Institute of Mining, Ural Branch, Russian Academy of Sciences, ul. Mamina-Sibiryaka 58, Ekaterinburg, 620219 Russia
Keywords: месторождение кварца, подземная технология, комбинированная система разработки, потери и разубоживание, буровзрывные работы, quartz deposit, underground technology, combination mining method, loss and dilution, drilling and blasting

Abstract >>
The article describes the applied research findings on selecting a resource-saving technology to ensure drastic reduction in loss of high-grade Kyshtym quartz. The economical-mathematical modeling yields relationships between mine efficiency, ground conditions, mine design and technology factors, and the optimal variant of a combination mining technology is determined using the maximum profit criterion. Full-scale physical simulation of closed-spaced charge blasting effect on reduction in overgrinding of quartz is discussed. Drilling and blasting pattern for experimental breaking of quartz by explosions is determined.



14.
Impulse Energy Inputs to Modify Subsurface Structure and Functions and Process Properties of Calcium-Bearing Minerals

M. V. RYAZANTSEVA, I. ZH. BUNIN, E. V. KOPORULINA
Institute of Integrated Mineral Development-IPKON, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
Keywords: кальцит, флюорит, шеелит, высоковольтные наносекундные импульсы, метод кислотно-основных индикаторов Гаммета, рентгенолюминесценция, микроскопия, мономинеральная флотация, calcite, fluorite, scheelite, high-voltage nanosecond impulses, Hammett acid-base indicators, X-ray fluorescence, microscopy, mono-mineral fraction

Abstract >>
Using Hammett indicators, X-ray fluorescence spectroscopy and atomic force microscopy, the authors analyze influence of high-voltage nanosecond impulses on structure and chemistry of surface and on process properties of calcium-bearing minerals. As a result of impulse energy inputs for t ≤ 30 s, the change in the structure and functions of mineral surface includes: enhancement of electron-donor capacity and formation of structural defects on the surface of fluorite, and enhancement of acceptor capacity of the surface of calcite and scheelite. Pre-treatment of mono-mineral samples by electrical impulses increases flotation ability of calcium-bearing minerals: increment in froth recovery makes 10–12% for scheelite, 5–6% for fluorite and 7–8% for calcite.



15.
Composition and Properties of Bio-Reagent to Intensify Leaching of Nonferrous Metals from Sulfide Ores and Concentrates

L. N. KRYLOVA, V. A. IGNATKINA
National University of Science and Technology-MISIS, Leninskii pr. 4, Moscow, 119049 Russia
Keywords: биореагент, железоокисляющие бактерии, сульфат железа, молекулярный состав, кристаллическая структура железа, фазовый состав, функциональные группы, центрифугирование, окислительная активность, осаждение, bio-reagent, iron-oxidizing bacteria, iron sulfate, molecular composition, iron-crystal structure, phase composition, functional groups, centrifugal separation, oxidative activity, sedimentation

Abstract >>
New information is obtained on composition and properties of a bio-reagent-oxidizer generated by mesophilic aerobic chemo-tropholytic bacteria Acidithiobaccilus ferrooxidans under oxidation of iron ions (II) in sulfuric acid solution. The composition and properties of the bio-reagent are compared with iron sulfate (III) used to intensify agitation and heap leaching of metals from sulfide ores and concentrates. The research with IR spectroscopy, mass spectrometry, Moessbauer spectrometry and potentiometry has revealed distinctive features of the bio-reagent and explained the experimentally observed increase in its oxidative activity when interacting with mine.



16.
Magnetization of Minerals by Radiation and Heating and Its Prospects in Mineral Processing

S. A. KONDRAT’EV, V. I. ROSTOVTSEV, I. I. BAKSHEEVA
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: минеральное сырье, пирит, бокситы, оловянные продукты, обработка ускоренными электронами, сухая магнитная сепарация, mineral raw material, bauxite, tin products, accelerated electron treatment, dry magnetic separation

Abstract >>
The article presents data of experimental studies into magnetic properties of iron-bearing sulfide and nonsulfide minerals under radiation and heating. It is found that bulk magnetic susceptibility has increased more than 100 times in pyrite and by 6 times in bauxite ore. Usefulness of radiation-and-heating magnetization in modification and processing of bauxite and tin-bearing minerals is demonstrated.



17.
Magnetic Separation of Eudialyte Ore under Pulp Pulsation

G. P. ANDRONOV1, I. B. ZAKHAROVA1, N. M. FILIMONOVA1, V. V. L’VOV2, T. N. ALEKSANDROVA2
1Mining Institute, Kola Science Center, Russian Academy of Sciences, ul. Fersmana 24, Apatity, 184209 Russia
2Saint-Petersburg Mining University, V.O. 21-liniya 2, Saint-Petersburg, 199106 Russia
Keywords: магнитная сепарация, магнитная индукция, частота пульсации пульпы, диаметр стержня матрицы, эвдиалитовый концентрат, нефелин-полевошпатовый продукт, эгириновый продукт, magnetic separation, magnetic inductance, pulp pulsation frequency, matrix rod diameter, eudialyte concentrate, nepheline-feldspar product, aegirine product

Abstract >>
The article presents data on separation of minerals of eudialyte ore with low magnetic susceptibility using a high-intensity wet magnetic separator and pulp pulsation. The optimal separator variables of the magnetic field inductance, pulp pulsation and matrix filler diameter to ensure maximum efficiency of processing are determined.



18.
Mining Information Science and Big Data Concept for Integrated Safety Monitoring in Subsoil Management

I. V. BYCHKOV1, D. YA. VLADIMIROV2, V. N. OPARIN3, V. P. POTAPOV4, YU. I. SHOKIN5
1Institute for System Dynamics and Control Theory, Siberian Branch, Russian Academy of Sciences, ul. Lermontova 134, Irkutsk, 664033 Russia
2VIST Group, Dokuchaev per. 3, Bld. 1, Moscow, 107078 Russia
3Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
4Institute of Computational Technologies, Siberian Branch, Russian Academy of Sciences, ul. Rukavishnikova 21, Kemerovo, 650025 Russia
5Institute of Computational Technologies, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrentieva 6, Novosibirsk, 630090 Russia
Keywords: "большие данные", интеллектуальный анализ, вычислительные и мини-кластеры, неструктурированные массивы информации, потоковая обработка геомеханических и геодинамических данных, облачные технологии, распределенные вычисления, безопасное недропользование, Big Data, intelligent analysis, computational and mini-clusters, raw data sets, geomechanical and geodynamic data flow computing, cloud computing, distributed computing, safe subsoil management

Abstract >>
The discussed challenge and its prospects in mining geoinformation science are connected with Big Data concept-flows of large sets of various data on mining. The authors describe Big Data technology and its general implementation on mini-clusters using Hadoop and MapReduce with case studies presented.



19.
Open-Hole Multistage Hydraulic Fracturing System

S. V. SERDYUKOV, N. V. DEGTYAREVA, A. V. PATUTIN, T. V. SHILOVA
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: множественный гидроразрыв, необсаженная скважина, скважинное оборудование, встроенная система доставки, анкерная система формирования поперечных трещин, двухкомпонентная рабочая жидкость гидроразрыва, multistage hydraulic fracturing, open hole, downhole equipment, inbuilt transport unit, anchor system of transversal fracturing, two-component breakdown fluid

Abstract >>
The presented system is intended for multistage hydraulic fracturing in long open holes of any orientation to create transversal fractures with a radius to 5 m in soft and medium-hard rocks. The downhole system has an inbuilt transport unit. This fracking equipment uses chemically active fluids generated in the fractured interval by mixture of two components injected in individual high-pressure hoses.



20.
Method and Means to Estimate Porosity Index Distribution on the Surface of Polished Section of Coal

A. S. TANAINO1, B. B. SIVOLAP1, E. A. MAKSIMOVSKY2, O. A. PERSIDSKAYA1
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Science, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrentieva 3, Novosibirsk, 630090 Russia
Keywords: уголь, плоская пористость, флюоресценция, микроскопический и структурный анализ, лабораторный эксперимент, coal, planar porosity, fluorescence, microscopic and structural analysis, laboratory experiment

Abstract >>
The method is based on transcapillary penetration of fluorescent fluid (EpoDye colorant) in the finest cavities and flaws on the surface of polished sections. Luminophor-filed voids become visible under UV light and optical microscope. The voids are estimated with respect to their kinds, sizes and area. The estimates and the statistical property of void distribution are described.