Pub Date : 2022-08-15DOI: 10.37878/2708-0080/2022-4.08
K. Chokin, N. Nadirov, A. Yedilbayev, A. Medvedev
The article considers technologies for the processing of technogenic formations by additional extraction of target components, reduction of waste at the stages of enrichment and after chemical and metallurgical processing. This approach is fundamentally different from the existing basic outlines of the use of technogenic waste as secondary resources in the production of building materials. It is noted that in the tailings of dry magnetic separation of magnetite ores there are fine particles with iron concentration, which are of commercial interest. At the first stage, it is necessary to mechanically separate small classes from the total number of waste rocks. The solution to this problem is based on the use of high-performance air classification methods. The use of apparatuses with an inclined louvered grating is considered, for which the parameters of the degree of fractional extraction of magnetic separation tailings into a fine product are determined. The second stage of tailings enrichment consists in dry magnetic extraction of iron-containing particles from small classes. For these purposes, the use of new magnetic separators, specially developed earlier for working with magnetite particles of small sizes, is discussed. Taken together, this approach makes it possible to increase the overall degree of iron extraction from ore without additional grinding operations and significant financial costs. Another direction of the industrial application of the proposed technologies for the processing of technogenic waste relates to the production of phosphorus. The phosphorus industry is a promising sector of the chemical industry. But its development also bears negative features in the form of largetonnage waste generated after chemical and metallurgical processing. Among them, phosphorus sludge is the most aggressive - it is a drop of phosphorus in an aqueous medium, absorption by a "fur coat" from a mixture of dust and other products associated with phosphorus by absorption bonds in micelles. Applications are being considered for two developed phosphorus mining targets. To achieve this goal, it is necessary to destroy the mineralogical shell of micelles. Then the released phosphorus settles to the bottom due to the higher density and separation occurs. In the first approach, the destruction of the micelle shell is carried out chemically. In the second proposed technology, the destruction process occurs due to the physical cavitation effect, which is created by elastic acoustic vibrations of sound and ultrasonic frequencies. Experimental studies of the application of these technologies to sludge with a phosphorus content of 10-90% have shown the degree of phosphorus recovery of more than 95%.
{"title":"PROCESSING OF TECHNOGENIC WASTE OF MINING PRODUCTION","authors":"K. Chokin, N. Nadirov, A. Yedilbayev, A. Medvedev","doi":"10.37878/2708-0080/2022-4.08","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-4.08","url":null,"abstract":"The article considers technologies for the processing of technogenic formations by additional extraction of target components, reduction of waste at the stages of enrichment and after chemical and metallurgical processing. This approach is fundamentally different from the existing basic outlines of the use of technogenic waste as secondary resources in the production of building materials. It is noted that in the tailings of dry magnetic separation of magnetite ores there are fine particles with iron concentration, which are of commercial interest. At the first stage, it is necessary to mechanically separate small classes from the total number of waste rocks. The solution to this problem is based on the use of high-performance air classification methods. The use of apparatuses with an inclined louvered grating is considered, for which the parameters of the degree of fractional extraction of magnetic separation tailings into a fine product are determined. The second stage of tailings enrichment consists in dry magnetic extraction of iron-containing particles from small classes. For these purposes, the use of new magnetic separators, specially developed earlier for working with magnetite particles of small sizes, is discussed. Taken together, this approach makes it possible to increase the overall degree of iron extraction from ore without additional grinding operations and significant financial costs. Another direction of the industrial application of the proposed technologies for the processing of technogenic waste relates to the production of phosphorus. The phosphorus industry is a promising sector of the chemical industry. But its development also bears negative features in the form of largetonnage waste generated after chemical and metallurgical processing. Among them, phosphorus sludge is the most aggressive - it is a drop of phosphorus in an aqueous medium, absorption by a \"fur coat\" from a mixture of dust and other products associated with phosphorus by absorption bonds in micelles. Applications are being considered for two developed phosphorus mining targets. To achieve this goal, it is necessary to destroy the mineralogical shell of micelles. Then the released phosphorus settles to the bottom due to the higher density and separation occurs. In the first approach, the destruction of the micelle shell is carried out chemically. In the second proposed technology, the destruction process occurs due to the physical cavitation effect, which is created by elastic acoustic vibrations of sound and ultrasonic frequencies. Experimental studies of the application of these technologies to sludge with a phosphorus content of 10-90% have shown the degree of phosphorus recovery of more than 95%.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114681498","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}
Pub Date : 2022-08-15DOI: 10.37878/2708-0080/2022-4.03
A. Zhanserkeyeva
Through basin analysis, the major tectonic stages and paleogeographic conditions of the formation of potential oil and gas source rocks of the subsalt complex of the eastern side zone of the Precaspian basin are considered. Prediction and localization of potential source rocks is critical for the Precaspian petroleum system understanding, both during petroleum play assessment at the prospecting and exploration stages. The generation and emigration potential of the oil and gas basin is determined not only by the concentration of the initial organic matter in the rock, but also by the type of kerogen. Based on Rock-Eval studies and comparative analysis with published biomarker data, the generation potential, genetic type and thermal maturity are analyzed depending on the age and structural relatedness of potential source rocks. A high generation potential has been established for the Lower Permian deposits, the occurrence of multiple generation foci controlled by the type and concentration of organic matter is predicted, which led to the formation of specific reservoirs of the "akzharite" type. The generation potential of the Visean-Bashkirian deposits is poor to average, catagenetic unconformities have been established within KT-II, KT-I, which indicates erosions, the total organic carbon (TOC) is 0.1-4%, the hydrogen index increases with depth, for samples enriched with TOC and with a content of S2 > 1, type II kerogen has been established, which it is an indicator of reducing marine environment. 2D basin modeling was performed in order to reconstruct the thermal evolution of potential source rocks and their thermal maturity and transformation ratio were modelled to determine the regional characteristics of hydrocarbon generation and migration. It is assumed that the formation and distribution area of the primary source rocks is associated with reducing conditions of the deep-sea shelf and continental slope and intensive subsidence in the Late Devonian-Lower Permian times. Conducting a comprehensive analysis of paleogeographic and paleotectonic conditions for the formation of potential source rocks is of key importance in the seismic interpretation and reconstruction of thermal history. 2D basin modeling was performed in order to reconstruct the thermal history of potential oil-producing strata and the degree of catagenetic maturity and the kerogen maturity index were estimated to determine the regional characteristics of hydrocarbon generation and migration.
{"title":"POTENTIAL SOURCE ROCKS EVALUATION FOR THE PRE-SALT COMPLEX OF THE EASTERN EDGE OF PRECASPIAN BASIN","authors":"A. Zhanserkeyeva","doi":"10.37878/2708-0080/2022-4.03","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-4.03","url":null,"abstract":"Through basin analysis, the major tectonic stages and paleogeographic conditions of the formation of potential oil and gas source rocks of the subsalt complex of the eastern side zone of the Precaspian basin are considered. Prediction and localization of potential source rocks is critical for the Precaspian petroleum system understanding, both during petroleum play assessment at the prospecting and exploration stages. The generation and emigration potential of the oil and gas basin is determined not only by the concentration of the initial organic matter in the rock, but also by the type of kerogen. Based on Rock-Eval studies and comparative analysis with published biomarker data, the generation potential, genetic type and thermal maturity are analyzed depending on the age and structural relatedness of potential source rocks. A high generation potential has been established for the Lower Permian deposits, the occurrence of multiple generation foci controlled by the type and concentration of organic matter is predicted, which led to the formation of specific reservoirs of the \"akzharite\" type. The generation potential of the Visean-Bashkirian deposits is poor to average, catagenetic unconformities have been established within KT-II, KT-I, which indicates erosions, the total organic carbon (TOC) is 0.1-4%, the hydrogen index increases with depth, for samples enriched with TOC and with a content of S2 > 1, type II kerogen has been established, which it is an indicator of reducing marine environment. 2D basin modeling was performed in order to reconstruct the thermal evolution of potential source rocks and their thermal maturity and transformation ratio were modelled to determine the regional characteristics of hydrocarbon generation and migration. It is assumed that the formation and distribution area of the primary source rocks is associated with reducing conditions of the deep-sea shelf and continental slope and intensive subsidence in the Late Devonian-Lower Permian times. Conducting a comprehensive analysis of paleogeographic and paleotectonic conditions for the formation of potential source rocks is of key importance in the seismic interpretation and reconstruction of thermal history. 2D basin modeling was performed in order to reconstruct the thermal history of potential oil-producing strata and the degree of catagenetic maturity and the kerogen maturity index were estimated to determine the regional characteristics of hydrocarbon generation and migration.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129857807","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}
Pub Date : 2022-08-15DOI: 10.37878/2708-0080/2022-4.04
B. Ratov, B. Fedorov, A. Kuttybayev, S. E. Koibakova, A. Borash
To solve the mentioned problem of accelerated commissioning of minerals occurring in hard rocks, studies have been carried out to formulate the following recommendations for the creation of high-performance diamond bits: - the crown matrix should contain several (five or more) impregnated diamond-bearing layers in height, separated by diamond-free layers of significantly lower hardness (for example, VK-20 hard alloy); - each diamond impregnated layer of the matrix must have a "comb" profile, representing annular wedge-shaped protrusions and depressions; - the impregnated diamond layers of the matrix during drilling should be equally loaded along the radius of the bit, which makes it possible to increase the wear resistance of the tool and reduce the number of rough diamonds for the manufacture of the latter; - to maintain the diameters of the well and the drilled core, the inner and outer side surfaces of the matrix must be equipped with wear-resistant diamond inserts (for example, from tvesala); - to produce a high-quality wear-resistant matrix, small amounts of various components should be added to the composition of the binder of the 94WC + Co + Cu type diamond grains. Recommendations 1-4 are embodied in the design of diamond impregnated crowns, for which the Republic of Kazakhstan has received patents. Crowns have been introduced into production with a significant effect. A diamond crown has been developed and patented, the impregnated layers placed in a matrix on a three-start helical surface with a slight pitch of 0.8 - 1.2 mm. It is expected that with this design, the pre-fracture zone will be involved in the bottom hole destruction process, which lies under the intrusion zone and represents a hard rock broken and weakened by cracks to a depth ten times greater than the intrusion depth of diamond grains. An experimental batch of multilayer crowns with an equally loaded comb profile and placement of impregnated layers on a three-start helical surface was made using software and CNC (numerical control) machines.
为了解决上述硬岩中矿物加速投产的问题，已经进行了研究，为制造高性能金刚石钻头制定了以下建议:-王冠基体应包含几个(五个或更多)浸透含金刚石层的高度，由硬度明显较低的无金刚石层(例如VK-20硬质合金)隔开;-每个金刚石浸渍层的基质必须有一个“梳子”的轮廓，代表环形楔形的突起和凹陷;-在钻孔过程中，基体的浸渍金刚石层应沿钻头半径均匀加载，这样可以增加工具的耐磨性并减少制造后者所需的毛坯金刚石的数量;-为了保持井和钻芯的直径，基质的内外侧面必须配备耐磨金刚石镶块(例如，来自tvesala);- 94WC + Co + Cu型金刚石颗粒粘结剂的组成中应添加少量的各种成分，以生产高质量的耐磨基体。建议1-4体现在钻石浸渍王冠的设计中，哈萨克斯坦共和国已为此获得专利。冠剂已投入生产，效果显著。一种钻石王冠已被开发并获得专利，浸渍层放置在三起点螺旋表面的基质中，间距为0.8 - 1.2毫米。预计通过本设计，裂缝前区域将参与井底破坏过程，该区域位于侵入带下方，代表坚硬岩石被裂缝破坏和削弱，其深度是金刚石颗粒侵入深度的十倍。采用软件加工和数控加工技术，制备了一批具有等载荷梳型和浸渍层分布在三齿螺旋表面的多层冠。
{"title":"SCIENTIFIC FOUNDATIONS OF THE CREATION OF DIAMOND DRILLING TOOLS OF THE RING TYPE","authors":"B. Ratov, B. Fedorov, A. Kuttybayev, S. E. Koibakova, A. Borash","doi":"10.37878/2708-0080/2022-4.04","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-4.04","url":null,"abstract":"To solve the mentioned problem of accelerated commissioning of minerals occurring in hard rocks, studies have been carried out to formulate the following recommendations for the creation of high-performance diamond bits: - the crown matrix should contain several (five or more) impregnated diamond-bearing layers in height, separated by diamond-free layers of significantly lower hardness (for example, VK-20 hard alloy); - each diamond impregnated layer of the matrix must have a \"comb\" profile, representing annular wedge-shaped protrusions and depressions; - the impregnated diamond layers of the matrix during drilling should be equally loaded along the radius of the bit, which makes it possible to increase the wear resistance of the tool and reduce the number of rough diamonds for the manufacture of the latter; - to maintain the diameters of the well and the drilled core, the inner and outer side surfaces of the matrix must be equipped with wear-resistant diamond inserts (for example, from tvesala); - to produce a high-quality wear-resistant matrix, small amounts of various components should be added to the composition of the binder of the 94WC + Co + Cu type diamond grains. Recommendations 1-4 are embodied in the design of diamond impregnated crowns, for which the Republic of Kazakhstan has received patents. Crowns have been introduced into production with a significant effect. A diamond crown has been developed and patented, the impregnated layers placed in a matrix on a three-start helical surface with a slight pitch of 0.8 - 1.2 mm. It is expected that with this design, the pre-fracture zone will be involved in the bottom hole destruction process, which lies under the intrusion zone and represents a hard rock broken and weakened by cracks to a depth ten times greater than the intrusion depth of diamond grains. An experimental batch of multilayer crowns with an equally loaded comb profile and placement of impregnated layers on a three-start helical surface was made using software and CNC (numerical control) machines.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114547832","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}
Pub Date : 2022-08-15DOI: 10.37878/2708-0080/2022-4.05
P. Tanzharikov, A.Z. Tleubergen, N. Suleymenov
Currently, it is relevant to reduce the cost of maintenance, selection and purchase of fishing equipment, primarily deep-water pumps, tubing, pumping rods. After all, they are most susceptible to wear and the supply of the rod pumping unit depends on their condition. However, despite the well-known improvement of production technology introduced by manufacturers, there is a tendency not only to increase the service life of pumps, but also to decrease. The reason for the decrease in the service life of deepwater pumps is the continuous deterioration of their operating conditions. The reason for the decrease in the service life of depth pumps is the continuous deterioration of their operating conditions. It is established that this is due to an increase in the depth of discharge of pump compressor pipes (SCS), progressive wetting of well production, an increase in the corrosive properties of the pumped liquid, etc. The cause mentioned above in the article was solved in the following way, studying the consequences. The task of the proposed modification of the stand is to improve the design of the unit for testing rod pumps by changing the position of the pump drive and ensuring accounting for leaks through the plunger pair. The mechanism of mutual action of the plunger in the pump cylinder is solved by the fact that the internal channel of the plunger of the rod pump testing unit with a system for measuring and recording pump parameters is blocked, a pressure gauge with a high-pressure inert gas is installed on the pressure line. Modeling of fluid flow in the stand position was carried out. A plan of the experiment Matrix was drawn up and the minimum number of repetitions of the experiment was determined.The obtained experimental data were processed statistically. The obtained regression models were tested for statistical significance. Detection rates were more than 90% in all cases. It was found that during turbulent fluid flow, the amount of fluid leakage in plunger pairs with a constant microregion in the form of a right triangle is less than in smooth plunger pairs. The Reynolds number for quantitative experiments for each hole was carried out by changing the value of the constant viscosity, a given flow of liquid entering the hole of the plunger pair.
{"title":"IMPROVEMENT OF ROD EQUIPMENT OF DEEP PUMPING UNITS IN THE CONDITIONS OF OIL FIELD DEVELOPMENT","authors":"P. Tanzharikov, A.Z. Tleubergen, N. Suleymenov","doi":"10.37878/2708-0080/2022-4.05","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-4.05","url":null,"abstract":"Currently, it is relevant to reduce the cost of maintenance, selection and purchase of fishing equipment, primarily deep-water pumps, tubing, pumping rods. After all, they are most susceptible to wear and the supply of the rod pumping unit depends on their condition. However, despite the well-known improvement of production technology introduced by manufacturers, there is a tendency not only to increase the service life of pumps, but also to decrease. The reason for the decrease in the service life of deepwater pumps is the continuous deterioration of their operating conditions. The reason for the decrease in the service life of depth pumps is the continuous deterioration of their operating conditions. It is established that this is due to an increase in the depth of discharge of pump compressor pipes (SCS), progressive wetting of well production, an increase in the corrosive properties of the pumped liquid, etc. The cause mentioned above in the article was solved in the following way, studying the consequences. The task of the proposed modification of the stand is to improve the design of the unit for testing rod pumps by changing the position of the pump drive and ensuring accounting for leaks through the plunger pair. The mechanism of mutual action of the plunger in the pump cylinder is solved by the fact that the internal channel of the plunger of the rod pump testing unit with a system for measuring and recording pump parameters is blocked, a pressure gauge with a high-pressure inert gas is installed on the pressure line. Modeling of fluid flow in the stand position was carried out. A plan of the experiment Matrix was drawn up and the minimum number of repetitions of the experiment was determined.The obtained experimental data were processed statistically. The obtained regression models were tested for statistical significance. Detection rates were more than 90% in all cases. It was found that during turbulent fluid flow, the amount of fluid leakage in plunger pairs with a constant microregion in the form of a right triangle is less than in smooth plunger pairs. The Reynolds number for quantitative experiments for each hole was carried out by changing the value of the constant viscosity, a given flow of liquid entering the hole of the plunger pair.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133737492","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}
Pub Date : 2022-06-15DOI: 10.37878/2708-0080/2022-3.02
B. Shilanbaev, A. Akhmetov, K. Gizemann, M. Koldei, Liu Chzhanli
The traditional joint injection of water into several reservoirs with different permeability does not control bottom hole pressures and water flow for each of the reservoirs (by their current geological parameters), which leads to uneven watering of oil deposits. As a result, advanced watering of highly permeable oil reservoirs occurs, the degree of coverage decreases, uneven impact, and the development of each of the reservoirs with different reservoir properties, namely, permeability occurs. In order to reduce capital costs for drilling a new injection well in multi-layer fields, one injection well accounts for more than two perforated reservoirs of heterogeneous permeability to maintain reservoir pressure. The article describes the successful experience of implementing simultaneous-separate injection and analyzes the effectiveness of implementing the technology of simultaneous-separate injection using the example of the M-II-1 horizon of the Akshabulak Central field. Among the successfully conducted experiments, there is an increase in oil recovery, cost savings due to the effectiveness of the technology, and the absence of any complications during repair work. However, also, there are disadvantages: a decrease in injectivity for individual choke due to contamination of the internal section and an increase in injectivity due to wear of the choke, difficulties in assessing the depletion of separate layers due to the insufficient number of measurements of the inflow profile at production wells. For better results in the future, it is planned to redistribute the history of production across reservoirs at production wells on a capacitive-resistive model (CRM) using neural network technologies, using the account of PLT studies at production wells, and distributed injection across reservoirs at injection wells.
{"title":"EXPERIENCE OF USING SIMULTANEOUS-SEPARATE DOWNLOADS AT THE AKSHABULAK TSENTRALNY DEPOSIT","authors":"B. Shilanbaev, A. Akhmetov, K. Gizemann, M. Koldei, Liu Chzhanli","doi":"10.37878/2708-0080/2022-3.02","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-3.02","url":null,"abstract":"The traditional joint injection of water into several reservoirs with different permeability does not control bottom hole pressures and water flow for each of the reservoirs (by their current geological parameters), which leads to uneven watering of oil deposits. As a result, advanced watering of highly permeable oil reservoirs occurs, the degree of coverage decreases, uneven impact, and the development of each of the reservoirs with different reservoir properties, namely, permeability occurs. In order to reduce capital costs for drilling a new injection well in multi-layer fields, one injection well accounts for more than two perforated reservoirs of heterogeneous permeability to maintain reservoir pressure. The article describes the successful experience of implementing simultaneous-separate injection and analyzes the effectiveness of implementing the technology of simultaneous-separate injection using the example of the M-II-1 horizon of the Akshabulak Central field. Among the successfully conducted experiments, there is an increase in oil recovery, cost savings due to the effectiveness of the technology, and the absence of any complications during repair work. However, also, there are disadvantages: a decrease in injectivity for individual choke due to contamination of the internal section and an increase in injectivity due to wear of the choke, difficulties in assessing the depletion of separate layers due to the insufficient number of measurements of the inflow profile at production wells. For better results in the future, it is planned to redistribute the history of production across reservoirs at production wells on a capacitive-resistive model (CRM) using neural network technologies, using the account of PLT studies at production wells, and distributed injection across reservoirs at injection wells.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123661712","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}
Pub Date : 2022-06-15DOI: 10.37878/2708-0080/2022-3.03
G. Moldabayeva, G. I. Jalalov, E. Gorshkova, G.KH. Kunayeva, SH.R. Tuzelbayev
The article presents the development of approximate and accurate methods for substantiating the optimal design of horizontal wells for their productivity. Universal recommendations have been developed that are suitable for use in the development of horizontal wells of deposits of any complexity. The main operational facilities of the oil fields of the Republic of Kazakhstan are at a late stage of development. The reserves of these objects are difficult to recover, which is due to factors such as high oil viscosity, low permeability of reservoirs, as well as high layer-by-layer and zonal heterogeneity, low effective thickness of reservoir layers, the presence of sub-gas zones and lowpower oil fringes. Residual hard-to-recover reserves require the introduction of new technologies. The technology of drilling horizontal wells has huge prospects associated with the possibility of increasing the efficiency of oil production, extending the period of waterless operation of the well and increasing the oil recovery coefficient, involving in the development of reservoirs with low reservoir properties and high-viscosity oil, reducing depression on the formation and the effect of cone formation. The growing interest, worldwide, in the use of horizontal wells, there is a need to develop a theory and study the processes of fluid filtration to the bottom of these wells, taking into account the above factors, and this becomes an urgent scientific and practical task.
{"title":"DETERMINATION OF THE OPTIMAL DESIGN OF THE HORIZONTAL BOREHOLE","authors":"G. Moldabayeva, G. I. Jalalov, E. Gorshkova, G.KH. Kunayeva, SH.R. Tuzelbayev","doi":"10.37878/2708-0080/2022-3.03","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-3.03","url":null,"abstract":"The article presents the development of approximate and accurate methods for substantiating the optimal design of horizontal wells for their productivity. Universal recommendations have been developed that are suitable for use in the development of horizontal wells of deposits of any complexity. The main operational facilities of the oil fields of the Republic of Kazakhstan are at a late stage of development. The reserves of these objects are difficult to recover, which is due to factors such as high oil viscosity, low permeability of reservoirs, as well as high layer-by-layer and zonal heterogeneity, low effective thickness of reservoir layers, the presence of sub-gas zones and lowpower oil fringes. Residual hard-to-recover reserves require the introduction of new technologies. The technology of drilling horizontal wells has huge prospects associated with the possibility of increasing the efficiency of oil production, extending the period of waterless operation of the well and increasing the oil recovery coefficient, involving in the development of reservoirs with low reservoir properties and high-viscosity oil, reducing depression on the formation and the effect of cone formation. The growing interest, worldwide, in the use of horizontal wells, there is a need to develop a theory and study the processes of fluid filtration to the bottom of these wells, taking into account the above factors, and this becomes an urgent scientific and practical task.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132523043","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}
Pub Date : 2022-06-15DOI: 10.37878/2708-0080/2022-3.07
A. Kydyraliev, O. K. Beisenbayev, K. Nadirov, G. Bimbetova
The article discusses the issues of obtaining elastomeric coronoelectretes for sealing units of oilfield equipment. In the conditions of collecting and preparing oil in the fields, the issues of using products based on rubber compounds for sealing during the operation of equipment in direct contact with the borehole fluid, which is to a certain extent an aggressive environment, are relevant. The composition of a polymer elastomeric coronoelectret for sealing units of oil industry equipment has been developed. The composite is based on low-density polyethylene, butadiene - nitrile synthetic rubber of the BNKS-18AMN brand, ethylene copolymer with vinyl acetate (savylene 11104-030), technical gossypol, organic modifiers. The effect of additives on the electret properties of composites is shown. Based on experimental data, it was found that the resulting composite material based on modified low-density polyethylene, savylene, technical gossypol, organomodified layered silicates, butadiene-nitrile rubber in the electret state has sufficient resistance, and giving them an electret state additionally reduces the amount of their swelling in the conditions of production of borehole products.
{"title":"OBTAINING ELASTOMERIC CORONOELECTRETES FOR SEALING UNITS OF OILFIELD EQUIPMENT","authors":"A. Kydyraliev, O. K. Beisenbayev, K. Nadirov, G. Bimbetova","doi":"10.37878/2708-0080/2022-3.07","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-3.07","url":null,"abstract":"The article discusses the issues of obtaining elastomeric coronoelectretes for sealing units of oilfield equipment. In the conditions of collecting and preparing oil in the fields, the issues of using products based on rubber compounds for sealing during the operation of equipment in direct contact with the borehole fluid, which is to a certain extent an aggressive environment, are relevant. The composition of a polymer elastomeric coronoelectret for sealing units of oil industry equipment has been developed. The composite is based on low-density polyethylene, butadiene - nitrile synthetic rubber of the BNKS-18AMN brand, ethylene copolymer with vinyl acetate (savylene 11104-030), technical gossypol, organic modifiers. The effect of additives on the electret properties of composites is shown. Based on experimental data, it was found that the resulting composite material based on modified low-density polyethylene, savylene, technical gossypol, organomodified layered silicates, butadiene-nitrile rubber in the electret state has sufficient resistance, and giving them an electret state additionally reduces the amount of their swelling in the conditions of production of borehole products.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129532245","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}
Pub Date : 2022-06-15DOI: 10.37878/2708-0080/2022-3.09
Z. D. Osmanov
Based on the analysis of the current state, it was revealed that Kazakhstan has significant reserves of fuel and energy resources: proven oil reserves exceed 4 billion tons. Due to the fact that Kazakhstan's own consumption of energy resources is less than their production, the remaining amount is sold on world markets. This article describes that the most preferred mode of transport of energy resources are pipelines, which have the following indisputable advantages: they can be laid in any direction and at any distance, regardless of the landscape; their operation practically does not depend on external conditions (weather conditions, time of year and day); they are more reliable than other types of energy transport and are automated to the greatest extent; cargo delivery is carried out almost all year round, without idle mileage, characteristic of tanks and ships when using other types of transport. In addition, it was recommended that the use of pipelines makes it possible to free up rail and water transport for the transportation of other goods. It was also proposed to expand the routes of transport systems connecting the Caspian oil and gas region with the regions of southern, central and eastern Kazakhstan, which will improve their security in the consumption of hydrocarbon resources. Partial or complete rejection of natural gas imports due to its supplies from the fields of Western Kazakhstan will ensure not only a reduction in foreign exchange costs for its purchase from Uzbekistan, but also reduce dependence on fluctuations in its prices due to changing market conditions and seasonality of supplies. This circumstance justifies the need to redistribute gas resources in the direction of solving the issues of providing the southern region of Kazakhstan with sufficient volumes of this type of resources.
{"title":"CURRENT STATE AND DEVELOPMENT OF OIL PIPELINE TRANSPORT OF OIL AND GAS OF THE REPUBLIC OF KAZAKHSTAN","authors":"Z. D. Osmanov","doi":"10.37878/2708-0080/2022-3.09","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-3.09","url":null,"abstract":"Based on the analysis of the current state, it was revealed that Kazakhstan has significant reserves of fuel and energy resources: proven oil reserves exceed 4 billion tons. Due to the fact that Kazakhstan's own consumption of energy resources is less than their production, the remaining amount is sold on world markets. This article describes that the most preferred mode of transport of energy resources are pipelines, which have the following indisputable advantages: they can be laid in any direction and at any distance, regardless of the landscape; their operation practically does not depend on external conditions (weather conditions, time of year and day); they are more reliable than other types of energy transport and are automated to the greatest extent; cargo delivery is carried out almost all year round, without idle mileage, characteristic of tanks and ships when using other types of transport. In addition, it was recommended that the use of pipelines makes it possible to free up rail and water transport for the transportation of other goods. It was also proposed to expand the routes of transport systems connecting the Caspian oil and gas region with the regions of southern, central and eastern Kazakhstan, which will improve their security in the consumption of hydrocarbon resources. Partial or complete rejection of natural gas imports due to its supplies from the fields of Western Kazakhstan will ensure not only a reduction in foreign exchange costs for its purchase from Uzbekistan, but also reduce dependence on fluctuations in its prices due to changing market conditions and seasonality of supplies. This circumstance justifies the need to redistribute gas resources in the direction of solving the issues of providing the southern region of Kazakhstan with sufficient volumes of this type of resources.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"2011 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128004300","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}
Pub Date : 2022-06-15DOI: 10.37878/2708-0080/2022-3.06
G. Moldabaeva, A. Agzamov, S. Abbasova, R. Suleimenova, H. Mukhammadiev
The results of numerical experiments to assess the influence of abnormally high reservoir pressure on the dynamics of pressure reduction at the bottom and the supply circuit, flow rate and life of wells are presented. It is shown that the growth of the anomaly coefficient of reservoir pressure has a positive effect on the dynamics of the considered indicators. It has been established that in hydrocarbon deposits with abnormally high reservoir pressures, the rock pressure of up to 75% is balanced by the pressure of saturating hydrocarbons. High rates of gas extraction, achieved due to large depressions on the reservoir in producing wells, lead to reservoir deformation, which in fractured and fractured-pore reservoirs leads to the closure of hydrocarbon filtration channels. Using the example of the Severny Nishan gas condensate field, it is shown that the deformation of the reservoir is the main reason for the low efficiency of development and the abandonment of half of the gas reserves in the reservoir. Hydraulic fracturing technology is recommended for the extraction of residual gas reserves. With an increase in the depth of the productive horizons, the proportion of hydrocarbon deposits with abnormally high reservoir pressures is steadily increasing. As it is known, the energy potential of productive layers is largely determined by the activity of the legal aquifer area. There are elision and infiltration natural water pressure systems. The experience of developing hydrocarbon deposits with AVPD shows that this factor, depending on the geological and physical conditions of the deposits, can affect the oil and gas recovery coefficient as a positive (increasing) and negative (decreasing) factor. At the same time, as positive factors, there is a higher concentration of reserves in the specific volume of the deposit, relatively high well flow rates, ensuring the gushing of wells for a long time, maintaining high reservoir properties of reservoir rocks, and as a negative factor, a decrease in stability and susceptibility of oil and gas saturated reservoirs to deformation processes.
{"title":"FACTORS AFFECTING THE GAS RECOVERY COEFFICIENT AT GAS CONDENSATE FIELDS WITH ABNORMALLY HIGH RESERVOIR PRESSURE","authors":"G. Moldabaeva, A. Agzamov, S. Abbasova, R. Suleimenova, H. Mukhammadiev","doi":"10.37878/2708-0080/2022-3.06","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-3.06","url":null,"abstract":"The results of numerical experiments to assess the influence of abnormally high reservoir pressure on the dynamics of pressure reduction at the bottom and the supply circuit, flow rate and life of wells are presented. It is shown that the growth of the anomaly coefficient of reservoir pressure has a positive effect on the dynamics of the considered indicators. It has been established that in hydrocarbon deposits with abnormally high reservoir pressures, the rock pressure of up to 75% is balanced by the pressure of saturating hydrocarbons. High rates of gas extraction, achieved due to large depressions on the reservoir in producing wells, lead to reservoir deformation, which in fractured and fractured-pore reservoirs leads to the closure of hydrocarbon filtration channels. Using the example of the Severny Nishan gas condensate field, it is shown that the deformation of the reservoir is the main reason for the low efficiency of development and the abandonment of half of the gas reserves in the reservoir. Hydraulic fracturing technology is recommended for the extraction of residual gas reserves. With an increase in the depth of the productive horizons, the proportion of hydrocarbon deposits with abnormally high reservoir pressures is steadily increasing. As it is known, the energy potential of productive layers is largely determined by the activity of the legal aquifer area. There are elision and infiltration natural water pressure systems. The experience of developing hydrocarbon deposits with AVPD shows that this factor, depending on the geological and physical conditions of the deposits, can affect the oil and gas recovery coefficient as a positive (increasing) and negative (decreasing) factor. At the same time, as positive factors, there is a higher concentration of reserves in the specific volume of the deposit, relatively high well flow rates, ensuring the gushing of wells for a long time, maintaining high reservoir properties of reservoir rocks, and as a negative factor, a decrease in stability and susceptibility of oil and gas saturated reservoirs to deformation processes.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132507914","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}
Pub Date : 2022-06-15DOI: 10.37878/2708-0080/2022-3.08
N. Zhanturganov, Y. A. Boleubayev, S. Itkulova
Modern oil refining requires an increasing amount of hydrogen to carry out hydrogenation processes and hydrotreatment of increasingly heavy oil and obtain high-quality products.Water gas shift reaction (WGSR) being the interaction of steam with carbon monoxide is one of the stages of industrial hydrogen production. Despite the sufficient development of the process, the search for more efficient catalysts for this process does not stop.In this work, the bimetallic cobalt-containing alumina supported catalysts modified with small amount of noble metals and prepared by the solgel method were synthesized and tested in WGSR. The total metal content was 5 mass %, a ratio of Co:M=98:2, where M=Rh or Pd. The effect of process temperature and the nature of additives on behavior of synthesized catalysts has been studied. It has been shown that the sol-gel 5% Co-M/ Al2 O3 catalysts have high activity, thus at t=390o C the extent of carbon oxide conversion reaches 96.5-97.5% depending on the nature of the second metal. The main products of the reaction are hydrogen and carbon dioxide. Both catalysts can be considered as high-temperature catalysts for WGSR.
{"title":"PRODUCTION OF HYDROGEN BY A WATER GAS SHIFT REACTION ON SOL-GEL BIMETALLIC Co-CONTAINING CATALYSTS","authors":"N. Zhanturganov, Y. A. Boleubayev, S. Itkulova","doi":"10.37878/2708-0080/2022-3.08","DOIUrl":"https://doi.org/10.37878/2708-0080/2022-3.08","url":null,"abstract":"Modern oil refining requires an increasing amount of hydrogen to carry out hydrogenation processes and hydrotreatment of increasingly heavy oil and obtain high-quality products.Water gas shift reaction (WGSR) being the interaction of steam with carbon monoxide is one of the stages of industrial hydrogen production. Despite the sufficient development of the process, the search for more efficient catalysts for this process does not stop.In this work, the bimetallic cobalt-containing alumina supported catalysts modified with small amount of noble metals and prepared by the solgel method were synthesized and tested in WGSR. The total metal content was 5 mass %, a ratio of Co:M=98:2, where M=Rh or Pd. The effect of process temperature and the nature of additives on behavior of synthesized catalysts has been studied. It has been shown that the sol-gel 5% Co-M/ Al2 O3 catalysts have high activity, thus at t=390o C the extent of carbon oxide conversion reaches 96.5-97.5% depending on the nature of the second metal. The main products of the reaction are hydrogen and carbon dioxide. Both catalysts can be considered as high-temperature catalysts for WGSR.","PeriodicalId":272594,"journal":{"name":"Neft i gaz","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123767229","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}
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