- Home
- Conferences
- Conference Proceedings
- Conferences
Engineering and Mining Geophysics 2019 15th Conference and Exhibition
- Conference date: April 22-26, 2019
- Location: Gelendzhik, Russia
- Published: 16 April 2019
61 - 80 of 110 results
-
-
Numerical Estimates of Magnetic Anomalies Caused by Changes in the Temperature Field in the Magmatic Focus of Klyuchevskaya Sopka Volcano
Authors A.A. Zaplavnova, L.V. Tsibizov and M.P. KozlovaSummaryNumerical estimates of magnetic anomalies caused by changes in the temperature field in the magmatic focus of Klyuchevskaya Sopka volcano.
-
-
-
Influence of Paraffin Content on Temperature Dependences of Viscosity of Synthetic Oil
Authors A. Abdrashitov and E. MarfinSummaryIn this work, the rheological properties of artificially created synthetic oil consisting of motor oil and dissolved paraffin are investigated. It was found that adding paraffin to oil up to 4% has practically no effect on the temperature dependence of oil viscosity. With an increase in the paraffin content, the viscosity of the oil increases significantly at low temperatures. The values of the activation energy of a viscous flow are calculated. The dependence of the activation energy on the percentage of paraffin in the oil has been established.
-
-
-
Local Inhomogeneities of the Waterproof Layer Mapping by A Multi-Level Different Dimensions Seismic Surveys Complex
Authors I. Sanfirov, A. Babkin, A. Yaroslavtsev, I. Gerasimova, K. Fatkin and S. GlebovSummaryComplex shallow seismic researches for safety salt mine ensuring was presented. Complex includes investigations of the different size. They are 2D – 3D surface and 2D mine seismic. Complex main target is detail space localization of the dangerous heterogeneities and areas with intensive massive properties changing of technic origin with necessary resolution. It was tested for stability checking of the edge part one of the of the Upper Kama potash deposit mines.
-
-
-
Methods of Evaluation of Geometrical and Stress-Strain Properties of A Geocomposite
Authors A.A. Kruglikov, A.A. Vasilchenko, Y.M. Ermolov, M.V. Okost and V.A. YavnaSummaryThe results of determination research of thickness of the ballast fixed by binding material depending on its consumption are delivered in the article. Construction modulus of elasticity measurement is done after the forming geocomposite has reached full endurance. The measurement shows that the construction Young's modulus increases approximately 4 times in case the ballast is enforced by binding material. Consumption control of binding material and thickness of forming geocomposite are considered in the article. It's especially topical when applying the technology of fixing the ballast on railway sections of long mileage.
-
-
-
Stock Assessment of the Surface Waters of Lakes by the Method of Hydrographic Surveying
Authors S. Korchak, I. Savintsev, L. Storozhenko and A. VlasovSummaryThis article deals with the problem of the influence of surface waters of lakes on the formation of the total water flow into the quarry, designed for the extraction of solid minerals. Considerable attention is paid to the method of studying lakes by means of hydrographic survey of topography and bottom structure by mobile multibeam echo sounder in order to obtain initial data for calculations of morphometric parameters of the reservoir. The features of data processing and construction of three-dimensional models of the lake and maps of bottom sediments with the use of various software systems are described. According to the results of the analysis of the data obtained, the dependence of the value of water filtration into the quarry through rocks composing the bottom of the lake on the morphometric parameters of the lake basin, the type and power of bottom sediments.
-
-
-
Geophysical Research in the Exploration for Water in the Regions of Permafrost
By S. KozakSummaryThe features of geophysical methods application in the identifying of the taliks in rock and unconsolidated permafrost are analyzed. At the initial stage of field research, it is advisable to allocate underflow talik using aquatic geophysics аnd then trace it to the work site. The main complex includes VES and TEM methods. Verification of perspective zones is carried out by NMR-sounding.
-
-
-
New Method of Data Processing at Borehole Measurements by A Gamma Logging Method
Authors S. Kataev, S. Kataeva and A. MillerSummaryFor detection of layers at borehole measurements the method of gamma logging offers to use the data processing method which is adaptation of the method of detection of structures (MRS) which was applied earlier by authors to identify of structure of the random flow of events. The examples confirming efficiency of a method are given.
-
-
-
The Analysis of Results of Action of A Vibrosignal on An Example of Rocky Breeds of Kma for An Assessment of Their Tendency to Mountain Blows
Authors J. Pogorelov, B. Adigamov, J. Taletsky and S. SergeyvSummaryFor improvement of a technique of the forecast of danger of mountain blow the analysis of results of laboratory researches of a vibration signal and acoustic issue at axial compression of samples of the KMA ferruterous quartzites is made. Noted local decrease of intensity of a vibration signal at monotonous increase in tension in rock is explained by manifestation of residual deformation of rocks, and the subsequent its increase - manifestation of elastic stratification of rocks before their destruction. The schedules of intensity of a vibration signal calculated according to laboratory data significantly differ from accepted standard, but correspond received at underground researches of a massif, are well differentiated in a form - therefore can be used for a quantitative assessment of danger of mountain blow, as a percentage of strength of the massif.
-
-
-
Investigation of Oil-Contaminated Areas Features Near the Bolshaya Izhorka River for Oil-Spill Mapping Using Electrical Survey
Authors T. Mingaleva, N. Senchina and A. MillerSummaryThe presented material is the result of studies on the oil spillage area that was formed in 2016 in the city of Kolpino near the river Bolshaya Izhorka. The obtained data are provided by the methods of electrical prospecting: the method of the self-potentials (SP), the method of the measuring of rock electrical conductivity (MREC) and apparent resistivity measurement. A map of the conductivity distribution of the selected territory was constructed based on the MREC method results. Hydrocarbon contamination shows a high value of conductivity compared to conventional ground according to the map of the area. These data are confirmed by measuring the apparent resistivity. Oil and oil products are marked by an increase in the SP measurements in the section and on the map. Infringements at recultivation and possible consequences are revealed.
-
-
-
Problems of Determination the Levels of Interfluid Contacts of Gas Condensate Deposits with Oil Rim on the Example of Formation Bu 161-4 Vostochno-Urengosky + Severo-Esetinsky Field
Authors K. Belova, Y. Baranova, S. Pakhomov and N. NatchukSummaryThe object of the study is the formation BU 161-4-which is heterogeneous on the petrophysical properties of shelf deposits. Problems of determining the character of reservoir saturation by GIS and fluid contact levels are deals with: Lithological variability of rocks is associated with the special reservoir structure; fossil water mineralization uncertainty is associated with the available deep water samples quality; and it is associated with Influence of secondary rock changes on GIS data. Lithological variability of rocks is the peculiarity of the formation structure. Lithotypes, which compose the formation, are characterized by different reservoir properties, which are depended on the size and configuration of pores, sizes and packing of grains. There is the developed methodology for lithotypes classification by core and GIS data. The problem of uncertainty of the parameter of mineralization of the fossil water is considered. The authors checked all samples of the fossil water in order to exclude intervals with drill fluid. The complicating factor in the reservoir saturation model was the influence of secondary changes, including zeolite, the intensity of which is about 7%. This paper presents the attempt to determine zeolite by GIS data. This paper reveals the problems with fluid contact levels determination for gas-condensate deposit with oil rim. In this work. We suggest the complex solution of this problem. The results allowed us to adjust the water-oil and gas-oil levels and we developed the program for further research.
-
-
-
Solving of Hydrogeological Problems in Permafrost Zone Conditions of the Polar Part of Western Siberia by the Tem Method
More LessSummaryThe possibilities and limitations of the induction sounding (TEM method) in the permafrost zone for solving hydrogeological problems are described. On the one hand the fresh water promising layer must have increased electrical resistivity (sand layer in the clay section). On the other hand, it should be a talik zone and should have a lower electrical resistivity in comparison with the surrounding frozen rocks. In the context of such ambiguity, it is important to use additional independent information to take informed decisions in the data interpretation. Such information capabilities are provided by fast-decaying induced polarization associated only with the frozen state of rocks. A number of examples show the effectiveness of the TEM method taking into account fast-decaying induced polarization for complex geocryological conditions of the polar part of Western Siberia.
-
-
-
Experience of Application of Non-Standard Approaches of Seismoacoustic Studies for Solving Geotechnical Problems in the Case of Low Efficiency and Non-Informative Application of Standard Techniques
Authors K. Dorokhin and A. SukharevSummaryQuite often, when solving various engineering-geological or geotechnical problems, researchers are faced with conditions that do not allow the use of standard approaches and techniques. In such situations, it is necessary to select individual and sometimes very non-standard approaches.
-
-
-
Search for Predictive Criteria for Seismic Events According to the Automatic System Complex Geotechnical Monitoring in Sochi Transport Tunnels
Authors S.G. Kataev, M.O. Lebedev, K.V. Romanevich, M.Y. Dolgij, V.K. Kuleshov and S.А. ShlyaevSummaryIn the paper, the group of authors shares its own experience (methodology) in the field of processing and interpreting the signal of electromagnetic radiation based on geotechnical monitoring data with a further identification of the information sign used for probabilistic earthquake prediction. In this regard, it can be considered that the geotechnical monitoring system developed by institute Lenmetrogyprotrans is not only the key to ensuring the safe operation of tunnels, when forecasting and evaluating the technical condition of tunnels, but is also important in more global tasks, such as implementing seismic predictions of natural character by means of identified reliable precursors.
-
-
-
Gpr Evaluation of Homogeneity of Soil Properties in Linear Objects
Authors V.L. Shapovalov, A.V. Morozov, V.A. Yavna and A.A. VasilchenkoSummaryThe work is aimed at assessing the feasibility of applying the GPR method with the continuous determination of the homogeneity of strength characteristics of the subgrade soil of railways and highways under construction along the GPR profile, and in depth. We demonstrate the distribution of density in different layers in the in-depth direction along the surveyed section of the roadbed during the construction process, after various numbers of soilcompacting machines passes. Good convergence of density values obtained by direct methods and GPR method is shown.
-
-
-
Survey of Ground Penetrating Radar Methods of the Contact Boundaries of the Layers of the Road Construction
Authors A. Kulizhnikov, R. Eremin and A. KuznetsovSummaryComprehensive studies of the internal structure of road structures by the geo-radar "OKO-3" were performed on the existing road network with the evaluation of the elastic modulus on the surface of the road structure using the FWD dynamic load setting. Identified by the received radarograms on sections of roads violations at the boundaries of the contact layers in road structures. The impact of violations at the boundaries of the contact layers of the road structure on the strength characteristics of the road is evaluated. Analysis of the radarograms on the road sections showed that gaps, absence and blurring of the in-phase lines at the boundaries of the layers indicate a decrease in strength on the surface of the pavement design. The location of the geosynthetic material is pronounced on radarograms, since the layer contributes to the accumulation of moisture, which is reflected by an increased signal amplitude on the surface of this layer. Recommendations on the use of GPR methods for assessing the state of the structural layers of the road pavement of roads at the contact boundaries of neighboring materials are given.
-
-
-
Gpr Data Correlation for Determine the Buried Holocene Coastlines Formed During the Change in the Level of the Baltic Sea
Authors A. Sergeev, L. Budanov, D. Ryabchuk, V. Zhamoida and I. NeevinSummaryThe results of GPR data analyses have shown that the accretion form is a polygenic, steeply inclined glacio-fluvial delta foreset formed during the Pandivere stage of deglaciation as a result of consistent discharges of huge amounts of sediment materials from the melting ice-sheet and arriving from the south, west, north-west and south-west. During the maximal level of the Littorina transgression, the eastern part of the accretion form remained drained and represented a peninsula or island that was surrounded by the Littorina Sea from the west and north-east, but its western part was intensely eroded. At an absolute level of 8.5 m, there was a relatively long-term stabilization in sea level, and beach and submarine sand ridges formed that were subsequently unaffected by marine transgressions and were preserved as relict forms in the relief.
-
-
-
Application of Gpr for Mapping of Underground Utilities: A Review
Authors Z. Khakiev, G. Lazorenko, V. Shapovalov and V. YavnaSummaryThe review has shown the extensive possibilities the GPR method for the mapping of underground utilities and engineering networks. Subsurface GPR is an effective method of search and control, which allows to carry out surveys of a large number of objects with relatively low labor and material costs. The method has established itself as one of the most effective for use in urban areas and is successfully used to solve engineering problems. It is one of the main methods of non-invasive detection and mapping of underground utilities.
-
-
-
Approbation of the Ems-Ip Technology for the Kimberlite Pipe Exploration in Conditions of A Wide Manifestation of Double Induced Polarization Effects on the Baytakhsky Area
Authors A.A. Tyrzhanov, Y.A. Davydenko, A.S. Bashkeev, S.V. Bukhalov, R.A. Shishmarev and Y.F. KovalskySummaryKimberlite pipe exploration overlapped by loose terrigenous-sedimentary rocks and traprock in the Yakutsk diamondiferous province, were and remain one of the most pressing and difficult tasks for geologists and geophysicists. Overlying deposits are usually highly variable physical properties, which the layer thickness of tens meters, blunt the effectiveness of traditional land-based geophysical methods. Exploratory drilling on a cellular mesh is come at a price but does not always solve the task of kimberlite pipe exploration. In connection with the above, special relevance takes use of new geophysical technologies to detection zones of kimberlite manifestations. Electromagnetic sounding and induced polarization technology (EMS-IP), by means of registration of the full form pulse ( Davidenko et al 2012 ) allows you to select areas with changes in physical properties (dedicated to the manifestation of kimberlite magmatism) on the background of the enclosing rocks to a depth of 1 km even in high-resistivity medium. In the period June-July 2017 in the Sakha (Yakutia) Republic, was performed three-dimensional survey on standard zone Baytakhsky by the of EMS-IP method. Mission was to test the technology of EMS-IP to identify, delineate and localize promising areas with kimberlite-containing diatreme within the scope of measurements.
-
-
-
Gpr Investigation of Ancient Copper Mines of Bronze Age in the Urals
Authors Noskevich V.V., Fedorova N.V. and Muravyev L.A.SummaryGeophysical methods have become an integral part of research in archeology. Their main advantage is that they allow you to study buried monuments without destroying the soil layer and provide an opportunity to more purposefully determine the place of future costly and laborious excavations of archaeologists. In the steppe zone of the Southern Urals and Mugodzhar about three dozen different types of copper mines are known, the development of which took place in the Bronze Age. At the present time the walls of the quarries have become destroyed and the bottom is covered with a thick layer of sediments. To study these quarries, it is important to determine the relief of quarries and localize ore mining sites during their operation. This makes it possible to assess the amount of ore mined and amount of copper smelted. Separation by GPR (Ground Penetrating Radar) of reflected boundaries between loose deposits and rock formations of the copper quarry of the Bronze Age of Chelabinskaya oblast in South Ural, the construction of a three-dimensional model of an ancient quarry and the localization of ore extraction.
-
-
-
On the Use of Solar Power Sources in the Method of Partial Extraction of Metals
Authors J.A. Sokolova, N.P. Senchina, A.A. Miller and M.M. SaitgaleevSummaryThe paper presents a new technique for deep-lying ore deposits prospecting based on a modification of the method of partial extraction of metals (in Russian-CHIM). Movable forms of elements are involved in the movement under the action of electric current in the vicinity of the partial extraction of metals station and accumulate in the elemental cell, thus achieving the selectivity of the analysis of the moving, migrating form of elements. The authors have developed a functioning model for the partial extraction of metals method, using a renewable resource - solar energy - as a source of electrical current. An assessment of the proposed method effectiveness for chemical elements extracting from the fixed (mineral) form was made experimentally in laboratory and field conditions, which showed the possibility of using the proposed modification at the current level of development of chemical analytical technologies. The use of solar cells gives to the method environmental and technological advantages over the classical implementation of the partial extraction of metals. Different geoelectrochemical methods of prospecting were compared and features of new technique were investigated.
-