Journal of Mining Institute最新文献_第6页

Drilling of deep and ultra-deep wells for prospecting and exploration of new raw mineral fields 钻探深井和超深井，勘探新的原矿田

IF 2

Journal of Mining Institute Pub Date : 2022-12-30 DOI: 10.31897/pmi.2022.55

M. Dvoynikov, Dmitrii Sidorkin, S.L. Yurtaev, E. Grokhotov, Dmitrii Ulyanov

{"title":"Drilling of deep and ultra-deep wells for prospecting and exploration of new raw mineral fields","authors":"M. Dvoynikov, Dmitrii Sidorkin, S.L. Yurtaev, E. Grokhotov, Dmitrii Ulyanov","doi":"10.31897/pmi.2022.55","DOIUrl":"https://doi.org/10.31897/pmi.2022.55","url":null,"abstract":"Scientific and technological progress over the last century has led to an enormous increase in the consumption of minerals, including energy resources. Most of the exploited oil and gas fields are already considerably depleted, so it is necessary to search for new hydrocarbon resources, particularly at great depths. Deep drilling plays a special role in solving this problem. The article considers the world and Russian experience of ultra-deep wells drilling. The me-thods and technologies used in the construction of wells, as well as complications and accidents occurring during their drilling were analyzed. The analysis revealed that the existing limitations for drilling parameters of deep and ultra-deep wells are caused by the technical characteristics of surface and bottomhole drilling equipment, which do not meet the extreme drilling conditions. The directions for development of deep and ultra-deep well drilling machinery and technologies are suggested. The notion of extreme rock and geological drilling conditions is introduced, which describes drilling in conditions of hydrostatic pressure of flushing fluid column and high bottomhole temperature both at stable and unstable wellbore conditions, coming close to the upper limit of operating technical characteristics of bottomhole assembly, the drill string and flushing fluid.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":"28 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90524430","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

A probabilistic study on hole cleaning optimization 井眼清洗优化的概率研究

IF 2

Journal of Mining Institute Pub Date : 2022-12-30 DOI: 10.31897/pmi.2022.67

Seyyed Shahab Tabatabaee Moradi

引用次数: 1

Technological sovereignty of the Russian Federation fuel and energy complex 俄罗斯联邦燃料和能源综合体的技术主权

IF 2

Journal of Mining Institute Pub Date : 2022-12-20 DOI: 10.31897/pmi.2022.107

O. Zhdaneev

引用次数: 6

Alluvial tin mining by spray-suction borehole method: a case study on remaining alluvial tin reserves in Bangka Belitung, Indonesia 喷吸钻孔法开采冲积锡——以印尼Bangka Belitung剩余冲积锡储量为例

IF 2

Journal of Mining Institute Pub Date : 2022-12-02 DOI: 10.31897/pmi.2022.70

Azwardi Ichwan, Aryo Wibowo, Anggayana Komang, N. Widodo

引用次数: 0

Assessment of the role of the state in the management of mineral resources 评估国家在矿产资源管理中的作用

IF 2

Journal of Mining Institute Pub Date : 2022-11-29 DOI: 10.31897/pmi.2022.100

V. Litvinenko, Evgeniĭ Petrov, Daria Vasilevskaya, A. Yakovenko, Igor Naumov, Maksim Ratnikov

引用次数: 19

Improving the efficiency of autonomous electrical complexes of oil and gas enterprises 提高油气企业自主电力综合体效率

IF 2

Journal of Mining Institute Pub Date : 2021-09-20 DOI: 10.31897/pmi.2021.3.10

I. Bogdanov, B. Abramovich

{"title":"Improving the efficiency of autonomous electrical complexes of oil and gas enterprises","authors":"I. Bogdanov, B. Abramovich","doi":"10.31897/pmi.2021.3.10","DOIUrl":"https://doi.org/10.31897/pmi.2021.3.10","url":null,"abstract":"In accordance with the Energy Strategy until 2035, the possibility of increasing the efficiency of energy use of secondary energy resources in the form of associated oil and waste gases has been substantiated by increasing the energy efficiency of the primary energy carrier to 90-95 % by means of cogeneration plants with a binary cycle of electricity generation and trigeneration systems with using the energy of the waste gas to cool the air flow at the inlet of gas turbine plants. The conditions for maintaining the rated power of the main generator with variations in the ambient temperature are shown. An effective topology of electrical complexes in a multi-connected power supply system of oil and gas enterprises according to the reliability condition is presented, which allows increasing the availability factor by 0.6 %, mean time between failures by 33 %, the probability of failure-free operation by 15 % and reducing the mean time of system recovery by 40 %. The article considers the use of parallel active filters to improve the quality of electricity and reduce voltage drops to 0.1 s when used in autonomous electrical complexes of oil and gas enterprises. The possibility of providing uninterrupted power supply when using thyristor systems for automatic reserve input has been proven. A comparative analysis was carried out to assess the effect of parallel active filters and thyristor systems of automatic transfer of reserve on the main indicators of the reliability of power supply systems of oil and gas enterprises.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":"65 5 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90780516","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: 12

Transition between relieved and unrelieved modes when cutting rocks with conical picks 用锥镐切割岩石时，在起伏模式和非起伏模式之间的过渡

IF 2

Journal of Mining Institute Pub Date : 2021-09-20 DOI: 10.31897/pmi.2021.3.1

E. Averin, A. Zhabin, A. Polyakov, Yu. I. Linnik, V. Linnik

{"title":"Transition between relieved and unrelieved modes when cutting rocks with conical picks","authors":"E. Averin, A. Zhabin, A. Polyakov, Yu. I. Linnik, V. Linnik","doi":"10.31897/pmi.2021.3.1","DOIUrl":"https://doi.org/10.31897/pmi.2021.3.1","url":null,"abstract":"In the modern theory of rock cutting in production conditions, it is customary to distinguish two large classes of achievable cutting modes – relieved and unrelieved. The kinematics of rock-breaking machines in most cases determines the operation of the cutting tool in both modes in one cycle of the cutting tool. The currently available calculation methods have been developed for a stable, usually unrelieved cutting mode. In this article, the task is set to determine the conditions for the transition between cutting modes and the modernization of the calculation method for determining the forces on the cutting tool. The problem is solved by applying methods of algebraic analysis based on the search for the extremum of the force function on the cutter, depending on the ratio of the real cut spacing to the optimal spacing for the current chip thickness. As a result of solving the problem, an expression is obtained for determining the chip thickness, for which, at the specified parameters, the transition between the relieved and unrelieved cutting modes is provided. The obtained result made it possible to improve the method of calculating the forces on the cutting tool in the areas of the cutter movement with relieved cutting.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":"27 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76601330","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

Empirical regularities investigation of rock mass discharge by explosion on the free surface of a pit bench 坑道自由面岩体爆炸泄放的经验规律研究

IF 2

Journal of Mining Institute Pub Date : 2021-09-20 DOI: 10.31897/pmi.2021.3.2

I. Alenichev, R. Rakhmanov

{"title":"Empirical regularities investigation of rock mass discharge by explosion on the free surface of a pit bench","authors":"I. Alenichev, R. Rakhmanov","doi":"10.31897/pmi.2021.3.2","DOIUrl":"https://doi.org/10.31897/pmi.2021.3.2","url":null,"abstract":"Minimizing the discharge of blasted rock mass into the developed space of the pit is a very relevant area for study, as it allows to increase the processability of work and reduce the cost of mining. The article presents the results of experimental industrial explosions, during which the study of this issue was conducted. The main purpose of the work was to establish the key factors affecting the volume of rock mass discharge to the pit haulage berm. During the analysis of the world experience of research on this topic, the key factors affecting the formation of collapse and discharge – natural and technological – are identified. The method of conducting experiments and collecting data for analyzing the influence of technological parameters of location, charging and initiation of wells on the volume of rock mass discharge is described. It is established that the main discharge to the pit haulage berm is formed by the volume of rock mass limited by the prism of the slope angle. With a sufficient rock mass displacement from the edge of the bench crest towards the center of the block, only the wells of the 1st and 2nd rows participate in the discharge formation. Empirical dependences of the total volume of rock mass discharge on the length of the block along the bench crest, the specific consumption of explosives, the size of a rock piece P50 and the rate of rock breaking are obtained. The obtained results can be used to design the parameters of the drilling and blasting operations (DBO), as well as to predict and evaluate the possible consequences of a mass explosion in similar mining and geological conditions.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78818332","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

Cadastral valuation of forest lands, taking into account the degree of development of their infrastructure 地籍林地的估价，考虑其基础设施的发展程度

IF 2

Journal of Mining Institute Pub Date : 2021-09-20 DOI: 10.31897/pmi.2021.3.14

V. Kovyazin, A. Kitcenko, S. Shobairi

{"title":"Cadastral valuation of forest lands, taking into account the degree of development of their infrastructure","authors":"V. Kovyazin, A. Kitcenko, S. Shobairi","doi":"10.31897/pmi.2021.3.14","DOIUrl":"https://doi.org/10.31897/pmi.2021.3.14","url":null,"abstract":"The article substantiates the need to improve methodology for cadastral valuation of forest lands and change the principles for calculating the rental rate of forest lands, on the basis of which the rent for the use of these lands will be determined in future. The methodology for determining the cadastral value of forest lands, taking into account the degree of development of their infrastructure, is presented. The infrastructure of lands of the forest fund is considered and an algorithm for assessing such infrastructure by means of geoinformation modeling is shown. A method for calculating a complex integral indicator (coefficient of infrastructure development) is presented, which is applicable to differentiate lands covered and not covered with tree vegetation, for their effective and rational management. The complex integral indicator determines the availability of forest plots, as it takes into account location of the forest fund infrastructure in relation to assessment plots, which makes it possible to obtain information about the time spent on covering the required distance. This methodology can be applied to assess the quality and condition of the existing infrastructure of the forestry sector in implementation of measures within the framework of the Strategy for the development of the forestry complex, providing for support and construction of infrastructure facilities on the forest fund lands. The method was tested in the Baltiysky district forestry of the Baltiysko-Belozersky taiga region. The results were as follows: the map of the forest fund infrastructure development within the boundaries of differentiation assessment according to the calculated integral indicator of infrastructure development was obtained; the regression model for calculating the rent rate taking into account the taxation value and integral indicator infrastructure development was received: the cadastral value of forest lands taking into account the developed model was calculated.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":"102 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87535221","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

Analysis of the screw press mouthpiece parameters for 3D extrusion of peat pieces of tubular type 管状泥炭块三维挤压螺杆压口参数分析

IF 2

Journal of Mining Institute Pub Date : 2021-09-20 DOI: 10.31897/pmi.2021.3.4

A. Mikhailov, A. Fedorov

{"title":"Analysis of the screw press mouthpiece parameters for 3D extrusion of peat pieces of tubular type","authors":"A. Mikhailov, A. Fedorov","doi":"10.31897/pmi.2021.3.4","DOIUrl":"https://doi.org/10.31897/pmi.2021.3.4","url":null,"abstract":"The results of theoretical and experimental studies on the creation of a screw press composite mouthpiece screw press for 3D-forming of peat pieces of a tubular type in the field for intensifying the process of field drying of material in a complex mechanized pit are presented. The main purpose of the study was to substantiate the geometric and design parameters of the screw press composite mouthpiece of the spread machine for the production of peat-agglomerated products of the tubular type. The parameters of the mouthpiece are selected based on the geometric characteristics of the peat pieces. An increase in moisture loss during drying of peat-agglomerated products is provided by forming a peat piece in the form of a thick-walled pipe made of a peat raw materials composed of low and high decomposition degrees in a ratio of 1:3. Additive production of polymer-fiber peat composites by extrusion allows to produce products with improved mechanical properties in comparison with non-reinforced raw materials. The vertical arrangement of the peat tubular piece on the drying field allows to increase the loading of the field area by 10 %, increase the convective heat supply to the piece and reduce the contact coefficient of the piece with the field by three times in comparison with the peat spreading of the pieces in the form of a horizontal tape. Based on the analysis of the shape and size of the agglomerated products, the design of a screw press composite mouthpiece consisting of two conditional molding zones of various configurations has been developed. The article presents a parametric analysis of the volumetric productivity of a screw press with a composite mouthpiece of a tubular type, the energy intensity of mechanical processing is determined, the degree of mechanical processing of peat raw materials is estimated with the optimization of the screw parameters for the production of agglomerated products of a tubular type.","PeriodicalId":16398,"journal":{"name":"Journal of Mining Institute","volume":"24 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90885545","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