Journal of Mining Institute最新文献_第4页

Gold-rare metal and associated mineralization in the western part of Bolshevik Island, Severnaya Zemlya archipelago 地岛群岛布尔什维克岛西部金稀有金属及伴生矿化

IF 2

Journal of Mining Institute Pub Date : 2023-02-27 DOI: 10.31897/pmi.2022.94

A. Evdokimov, V. Fokin, Nikolai Shanurenko

{"title":"Gold-rare metal and associated mineralization in the western part of Bolshevik Island, Severnaya Zemlya archipelago","authors":"A. Evdokimov, V. Fokin, Nikolai Shanurenko","doi":"10.31897/pmi.2022.94","DOIUrl":"https://doi.org/10.31897/pmi.2022.94","url":null,"abstract":"The presented studies are aimed to determine the formation patterns of the gold-rare metal mineralization within one of the most inaccessible Arctic islands of the Russian Federation, Bolshevik Island of the Severnaya Zemlya archipela-go. The relevance of the work is determined by the high probability of discovering a significant in terms of metal reserves deposit, which is proved by many researchers on the example of known large deposits to be a typical feature of sites with gold-rare metal formation. Obviously, only the possibility of discovering and subsequent development of a deposit of a highly liquid type of mineral, gold, can ensure the profitability of mining production on Severnaya Zemlya. It is established that the main geological, mineralogical, and geochemical features of the gold-rare metal mineralization in the Kropotkinsko-Nikitinskaya metallogenic zone of Bolshevik Island correspond to that of similar ore sites in Russia and the world. The occurrences of other formation types revealed in this metallogenic zone suggest a certain zoning in their distribution: mineralization is located in the apical parts of granitoids and in the nearest halo of hornfelses. At a distance, with an exit from the hornfelsed zone, there are occurrences of a cassiterite-sulphide formation with elevated gold and silver content at the top of the ore column, together with an increased amount of polymetallic ores. Occurrences of gold-quartz and gold-sulphide-quartz formations are localized in fault zones, as a rule, farther from granitoids. The total vertical range of gold mineralization exceeds 300 m. The assignment of all types of mineralization in the Kropotkinsko-Nikitinskaya metallogenic zone of Bolshevik Island to a single hydrothermal process is emphasized by the similar isotope composition of lead galena from heterogeneous occurrences, which determines the age of all mineralization at 200-300 Ma.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78972470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the possibility of using leucoxene-quartz concentrate as raw material for production of aluminium and magnesium titanates 以亮色英-石英精矿为原料生产钛酸铝、钛酸镁的可能性评价

IF 2

Journal of Mining Institute Pub Date : 2023-02-22 DOI: 10.31897/pmi.2023.15

E. Kuzin, I. Mokrushin, N. Kruchinina

{"title":"Assessment of the possibility of using leucoxene-quartz concentrate as raw material for production of aluminium and magnesium titanates","authors":"E. Kuzin, I. Mokrushin, N. Kruchinina","doi":"10.31897/pmi.2023.15","DOIUrl":"https://doi.org/10.31897/pmi.2023.15","url":null,"abstract":"Leucoxene-quartz concentrate is a large-tonnage by-product of development of the Timan oil-titanium field (oil-saturated sandstones) which is not commercially used at present. High content of titanium compounds (to 50 % by weight) and lack of industrial, cost-effective, and safe technologies for its processing determine a high relevance of the work. Conventional processing technologies allow increasing the concentration of TiO2, but they are only a preparation for complex and hazardous selective chlorination. The process of pyrometallurgical conversion of leucoxene-quartz concentrate into aluminium and magnesium titanates was investigated. It was ascertained that the temperature of solid-phase reaction in Al2O3-TiO2-SiO2 system necessary for the synthesis of aluminium titanate (Al2TiO5) is 1,558 °С, and for MgO-TiO2-SiO2 system – 1,372 °С. Scaling up the process made it possible to synthesize a significant number of samples of titanate-containing products, the phase composition of which was studied by X-ray phase analysis. Two main phases were identified in the products: 30 % aluminium/magnesium titanate and 40 % silicon dioxide. In products of pyrometallurgical processing in the presence of aluminium, phases of pseudobrookite (3.5 %) and titanite (0.5 %) were also found. It was ascertained that in magnesium-containing system the formation of three magnesium titanates is possible: MgTiO3 – 25, Mg2TiO4 – 35, MgTi2O5 – 40 %. Experiments on sulphuric acid leaching of samples demonstrated a higher degree of titanium compounds extraction during sulphuric acid processing. An integrated conceptual scheme for processing leucoxene-quartz concentrate to produce a wide range of potential products (coagulants, catalysts, materials for ceramic industry) was proposed.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81171304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microbiological remediation of oil-contaminated soils 石油污染土壤的微生物修复

IF 2

Journal of Mining Institute Pub Date : 2023-02-16 DOI: 10.31897/pmi.2023.8

I. Sozina, A. Danilov

{"title":"Microbiological remediation of oil-contaminated soils","authors":"I. Sozina, A. Danilov","doi":"10.31897/pmi.2023.8","DOIUrl":"https://doi.org/10.31897/pmi.2023.8","url":null,"abstract":"Microbiological remediation is a promising technology for the elimination of environmental contamination by oil and petroleum products, based on the use of the metabolic potential of microorganisms. The issue of environmental contamination by crude oil and its refined products is relevant in the Russian Federation since the oil industry is one of the leading sectors of the country. Mechanical and physico-chemical methods of treatment are widely used to clean oil-contaminated soils. However, the methods belonging to these groups have a number of significant drawbacks, which actualizes the development of new methods (mainly biological), since they are more environmentally friendly, cost-effective, less labor-intensive, and do not require the use of technical capacities. Various bio-based products based on strains and consortia of microorganisms have been developed that have proven effectiveness. They include certain genera of bacteria, microscopic fungi, and microalgae, substances or materials acting as sorbents of biological agents and designed to retain them in the soil and increase the efficiency of bioremediation, as well as some nutrients. Statistical data, the most effective methods, and technologies, as well as cases of using microorganisms to restore oil-contaminated soils in various climatic conditions are presented.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85343272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Composite model of seismic monitoring data analysis during mining operations on the example of the Kukisvumchorrskoye deposit of AO Apatit 以AO Apatit Kukisvumchorrskoye矿床为例，采矿过程中地震监测数据分析的复合模型

Journal of Mining Institute Pub Date : 2023-02-16 DOI: 10.31897/pmi.2023.9

Alexander Gospodarikov, Ilia Revin, Konstantin Morozov

引用次数: 0

Uranium in man-made carbonates on the territory of Ufa 乌法境内人造碳酸盐中的铀

IF 2

Journal of Mining Institute Pub Date : 2023-01-26 DOI: 10.31897/pmi.2023.4

I. Farkhutdinov, R. Khayrullin, B. Soktoev, A. Zlobina, E. Chesalova, A. Farkhutdinov, A. Tkachev

{"title":"Uranium in man-made carbonates on the territory of Ufa","authors":"I. Farkhutdinov, R. Khayrullin, B. Soktoev, A. Zlobina, E. Chesalova, A. Farkhutdinov, A. Tkachev","doi":"10.31897/pmi.2023.4","DOIUrl":"https://doi.org/10.31897/pmi.2023.4","url":null,"abstract":"The paper presents the results of analyzing uranium content in man-made carbonates (scale crusts) on the territory of Ufa based on examination of 42 samples. The median uranium content in the investigated samples stands at 1.44 mg/kg, which is significantly lower than the background values (scales from the Lake Baikal water, a clarke of sedimentary carbonate rocks) and data on other settlements of the Republic of Bashkortostan. Low values of uranium content are probably associated with the effects of the three leading factors, i.e. specific subsurface geology of the territory (gypsum, limestone); types of water supply; water treatment processes for the centralized type of water supply. Spatial distribution of uranium in man-made carbonates is characterized with uniformity, which is disturbed in two cases, i.e. a change of the water supply type (from centralized to individual); and material of the vessels used for boiling the water. No significant differences were detected when comparing samples of man-made carbonates associated with different sources of water supply (the bucket and infiltration types of water intake) and the types of household filters.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72421550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Production of biodiesel fuel from vegetable raw materials 以植物为原料生产生物柴油

IF 2

Journal of Mining Institute Pub Date : 2023-01-23 DOI: 10.31897/pmi.2022.15

N. Kondrasheva, A. Eremeeva

引用次数: 11

Parameter determination of the method of directional unloading of the reservoir based on physical modelling on a true triaxial loading setup 基于真三轴加载物理模拟的储层定向卸载方法参数确定

IF 2

Journal of Mining Institute Pub Date : 2022-12-30 DOI: 10.31897/pmi.2022.95

V. Karev, Yuri Kovalenko, V. Khimulia, N. Shevtsov

{"title":"Parameter determination of the method of directional unloading of the reservoir based on physical modelling on a true triaxial loading setup","authors":"V. Karev, Yuri Kovalenko, V. Khimulia, N. Shevtsov","doi":"10.31897/pmi.2022.95","DOIUrl":"https://doi.org/10.31897/pmi.2022.95","url":null,"abstract":"The article presents a theoretical and experimental substantiation of the method of directional unloading of the reservoir in fields with low-permeability reservoirs. The relevance of the article is due to the reduction of hydrocarbon resources in modern conditions and the need to create new efficient environmentally friendly technologies to develop hydrocarbon deposits with hard-to-recover reserves, primarily with low-permeability reservoirs. The results of a theoretical study of the stress-strain state in the vicinity of a well, both cased and open, are presented. They are necessary to develop programs for laboratory testing of core specimens from the studied fields. A technique for physical modelling of deformation processes in the bottomhole zone with a decrease in pressure at the well bottom in a true triaxial loading unit is described in order to determine the parameters of the process impact on the formation reservoir, leading to an increase in well productivity. The method was applied to the conditions of the low-permeability reservoir at the Verkhneviluchanskoye oil and gas condensate field in the southwest of the Republic of Sakha (Yakutia). Expe-rimental studies were carried out on a unique scientific unit for true triaxial loading, created at the IPMech RAS, the Triaxial Independent Loading Test System. The directional unloading method was adapted for the studied field, the process parameters of successful application of the method were determined: the bottomhole design, the drawdown values necessary to increase the permeability of the bottomhole formation zone.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74682363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of suitable distance between methane drainage stations in Tabas mechanized coal mine (Iran) based on theoretical calculations and field investigation 基于理论计算和实地考察的伊朗Tabas机械化煤矿甲烷排气站间适宜距离的确定

IF 2

Journal of Mining Institute Pub Date : 2022-12-30 DOI: 10.31897/pmi.2022.106

A. Hosseini, Mehdi Najafi, A. Morshedy

{"title":"Determination of suitable distance between methane drainage stations in Tabas mechanized coal mine (Iran) based on theoretical calculations and field investigation","authors":"A. Hosseini, Mehdi Najafi, A. Morshedy","doi":"10.31897/pmi.2022.106","DOIUrl":"https://doi.org/10.31897/pmi.2022.106","url":null,"abstract":"A large amount of gas is emitted during underground mining processes, so mining productivity decreases and safety risks increase. Efficient methane drainage from the coal seam and surrounding rocks in underground mines not only improves safety but also leads to higher productivity. Methane drainage must be performed when the ventilation air cannot dilute the methane emissions in the mine to a level below the allowed limits. The cross-measure borehole method is one of the methane drainage methods that involves drilling boreholes from the tailgate roadway to an un-stressed zone in the roof or floor stratum of a mined seam. This is the main method used in Tabas coal mine N 1. One of the effective parameters in this method is the distance between methane drainage stations, which has a direct effect on the length of boreholes required for drainage. This study was based on the measurement of ventilation air methane by methane sensors and anemometers placed at the longwall panel as well as measuring the amount of methane drainage. Moreover, in this study, the obtained and analyzed data were used to determine the suitable distance between methane drainage stations based on the cross-measure borehole method. In a field test, three borehole arrangements with different station distances in Panel E4 of Tabas coal mine N 1 were investigated. Then, the amounts of gas drained from these arrangements were compared with each other. The highest methane drainage efficiency was achieved for distances in the range of 9-12 m between methane drainage stations.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79305313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Autoclave modeling of corrosion processes occurring in a gas pipeline during transportation of an unprepared multiphase medium containing CO2 高压灭菌器模拟含CO2的未准备多相介质在输气管道中发生的腐蚀过程

IF 2

Journal of Mining Institute Pub Date : 2022-12-30 DOI: 10.31897/pmi.2022.92

N. Shaposhnikov, I. Golubev, S. Khorobrov, Alexander Kolotiy, A. Ioffe, V. Revyakin

{"title":"Autoclave modeling of corrosion processes occurring in a gas pipeline during transportation of an unprepared multiphase medium containing CO2","authors":"N. Shaposhnikov, I. Golubev, S. Khorobrov, Alexander Kolotiy, A. Ioffe, V. Revyakin","doi":"10.31897/pmi.2022.92","DOIUrl":"https://doi.org/10.31897/pmi.2022.92","url":null,"abstract":"The problem of selecting a method for ensuring the reliability of the unprepared fluid transport facilities of an unprepared fluid in the presence of carbon dioxide is considered. Carbon dioxide corrosion is one of the dangerous types of damage to field and main pipelines. It has been shown that dynamic autoclave tests should be carried out during staged laboratory tests in order to determine the intensity of carbon dioxide corrosion and to select the optimal method of protection. A hypothesis about the imperfection of the existing generally accepted approaches to dynamic corrosion testing has been put forward and confirmed. A test procedure based on the use of an autoclave with an overhead stirrer, developed using elements of mathematical modeling, is proposed. The flows created in the autoclave provide corrosive wear of the sample surface similar to the internal surfaces elements wear of the pipelines piping of gas condensate wells. The autoclave makes it possible to simulate the effect of the organic phase on the flow rate and the nature of corrosion damage to the metal surface, as well as the effect of the stirrer rotation speed and, accordingly, the shear stress of the cross section on the corrosion rate in the presence/absence of a corrosion inhibitor. The given results of staged tests make it possible to judge the high efficiency of the developed test procedure.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81405093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of the influence of fracture parameters uncertainty on the dynamics of technological development indicators of the Tournaisian-Famennian oil reservoir in Sukharev oil field 苏哈列夫油田图尔纳—法门尼期油藏裂缝参数不确定性对技术开发指标动态影响的估算

IF 2

Journal of Mining Institute Pub Date : 2022-12-30 DOI: 10.31897/pmi.2022.102

Aleksanr Kochnev, N. Kozyrev, S. Krivoshchekov

引用次数: 1