V. Abdullayev, N. T. Alieva, N. K. Gamzaeva, Kh. M. Gamzaev
The process of infiltration of oil and petroleum products into the ground when they spill onto the surface of the earth is considered. To construct a mathematical model of this process, the soil is represented as a solid body with a system of vertical cylindrical microtubules with the same diameter, and the infiltration of liquid into the soil is represented as the movement of a cylindrical liquid layer of variable height formed in the microtubule. It is assumed that liquid slides on the microtubule wall is according to Navier's law. First, formulas are proposed for determining the forces of inertia and viscous friction on the microtubule. Taking into account the acting forces, a mathematical model of the motion of a cylindrical liquid layer in a microtubule is constructed, which is a nonlinear ordinary differential equation of the second order. The resulting model is represented as a system of nonlinear ordinary differential equations of the first order with initial conditions. A discrete analogue of the latter problem is constructed using the finite difference method and a computational algorithm is proposed for the numerical solution of the resulting nonlinear system of difference equations. Numerical experiments were carried out on the basis of the proposed computational algorithm. Keywords: infiltration of oil and petroleum products into the soil; the model of ideal soil; sliding according to Navier's law; the finite difference method.
{"title":"About one model of infiltration of oil and petroleum products into the ground during their spills","authors":"V. Abdullayev, N. T. Alieva, N. K. Gamzaeva, Kh. M. Gamzaev","doi":"10.5510/ogp2022si200748","DOIUrl":"https://doi.org/10.5510/ogp2022si200748","url":null,"abstract":"The process of infiltration of oil and petroleum products into the ground when they spill onto the surface of the earth is considered. To construct a mathematical model of this process, the soil is represented as a solid body with a system of vertical cylindrical microtubules with the same diameter, and the infiltration of liquid into the soil is represented as the movement of a cylindrical liquid layer of variable height formed in the microtubule. It is assumed that liquid slides on the microtubule wall is according to Navier's law. First, formulas are proposed for determining the forces of inertia and viscous friction on the microtubule. Taking into account the acting forces, a mathematical model of the motion of a cylindrical liquid layer in a microtubule is constructed, which is a nonlinear ordinary differential equation of the second order. The resulting model is represented as a system of nonlinear ordinary differential equations of the first order with initial conditions. A discrete analogue of the latter problem is constructed using the finite difference method and a computational algorithm is proposed for the numerical solution of the resulting nonlinear system of difference equations. Numerical experiments were carried out on the basis of the proposed computational algorithm. Keywords: infiltration of oil and petroleum products into the soil; the model of ideal soil; sliding according to Navier's law; the finite difference method.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87841090","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}
R. R. Kadyrov, V. Mukhametshin, R. Rabaev, L. Kuleshova, V. Shchetnikov, I. F. Galiullina, A. Gabzalilova
The possibility and expediency of using reservoir and oilfield wastewater in areas of depleted and exhausted deposits in oil production for the preparation of liquids used for well killing, cement slurry mixing; table salt suitable as a food product producing. Based on laboratory studies, it has been found out that from one ton of water, on average, 180–210 kg of well killing fluid and 140–150 kg of common salt can be obtained, and dilution of heavy brine with fresh technical water can significantly increase the cement stone strength when fixing wells. The carried out simulation tests indicate that there is no deterioration in the reservoir properties of productive formations when they come into contact with heavy brines and the possibility of using such brines as a well killing fluid. A method has been developed for well-killing fluid and sodium chloride obtaining from oil field formation waters, including the initial formation water of calcium chloride type purification from mechanical impurities, oil residues, bringing its density to the concentration of calcium chloride, at which sodium chloride precipitates. Keywords: reservoir water; well killing fluid; table salt; cement stone strength; sodium chloride salting.
{"title":"Study of the possibility of reservoir water solutions as a well-killing fluid using","authors":"R. R. Kadyrov, V. Mukhametshin, R. Rabaev, L. Kuleshova, V. Shchetnikov, I. F. Galiullina, A. Gabzalilova","doi":"10.5510/ogp20220400783","DOIUrl":"https://doi.org/10.5510/ogp20220400783","url":null,"abstract":"The possibility and expediency of using reservoir and oilfield wastewater in areas of depleted and exhausted deposits in oil production for the preparation of liquids used for well killing, cement slurry mixing; table salt suitable as a food product producing. Based on laboratory studies, it has been found out that from one ton of water, on average, 180–210 kg of well killing fluid and 140–150 kg of common salt can be obtained, and dilution of heavy brine with fresh technical water can significantly increase the cement stone strength when fixing wells. The carried out simulation tests indicate that there is no deterioration in the reservoir properties of productive formations when they come into contact with heavy brines and the possibility of using such brines as a well killing fluid. A method has been developed for well-killing fluid and sodium chloride obtaining from oil field formation waters, including the initial formation water of calcium chloride type purification from mechanical impurities, oil residues, bringing its density to the concentration of calcium chloride, at which sodium chloride precipitates. Keywords: reservoir water; well killing fluid; table salt; cement stone strength; sodium chloride salting.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89438441","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}
É. Iskenderov, A. N. Bagirov, S. Bagirov, P. Ismayilova
The article is devoted to the study of supersonic movement of natural gas in a pipeline and the possibility of developing new technological processes for cooling, drying and separating liquid hydrocarbons. Technological processes and a set of equipment created using the supersonic movement of natural gas are studied, their advantages and disadvantages are analyzed. It is known that a change in the process of gas injection into UGS facilities in a wide range of pressure during the season creates opportunities for more efficient use of compressor equipment. The thermobaric parameters of gas cooling due to supersonic motion in various designs have been calculated, and the existence of ample opportunities for creating new technological processes has been proved. Recommendations have been developed on the throughput capacity of gas installations to ensure the regulation of cooling systems created for underground gas storage facilities. It was noted that the cooling and gas separation systems created on the basis of thermobaric parameters and principles of regulation will be useful not only for underground gas storages, but also for other sub-sectors of the gas industry. Keywords: natural gas; supersonic movement; laval nozzle; underground gas storage; gas cooling; separation; compressor.
{"title":"Development of new technological processes based on supersonic flow of natural gas","authors":"É. Iskenderov, A. N. Bagirov, S. Bagirov, P. Ismayilova","doi":"10.5510/ogp20220400790","DOIUrl":"https://doi.org/10.5510/ogp20220400790","url":null,"abstract":"The article is devoted to the study of supersonic movement of natural gas in a pipeline and the possibility of developing new technological processes for cooling, drying and separating liquid hydrocarbons. Technological processes and a set of equipment created using the supersonic movement of natural gas are studied, their advantages and disadvantages are analyzed. It is known that a change in the process of gas injection into UGS facilities in a wide range of pressure during the season creates opportunities for more efficient use of compressor equipment. The thermobaric parameters of gas cooling due to supersonic motion in various designs have been calculated, and the existence of ample opportunities for creating new technological processes has been proved. Recommendations have been developed on the throughput capacity of gas installations to ensure the regulation of cooling systems created for underground gas storage facilities. It was noted that the cooling and gas separation systems created on the basis of thermobaric parameters and principles of regulation will be useful not only for underground gas storages, but also for other sub-sectors of the gas industry. Keywords: natural gas; supersonic movement; laval nozzle; underground gas storage; gas cooling; separation; compressor.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85084334","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}
This paper presents the results of biomarker analysis of 183 oil samples derived from 19 oil and gas fields and Rock-Eval pyrolysis performed on 93 core samples from 12 fields in the South Mangyshlak basin. According to the biomarkers, oils of studied fields were formed from shaly OM and can be divided into 3 groups: the first group includes Oymasha, Ashiagar, Atambay-Sartobe, Alatyube, Karagie North and Akkar North, which have OM of marine origin, while the second group includes oils from the Pridorozhnoye, Airantakyr, Burmasha and Bekturly fields, which have OM of lacustrine origin. The third group includes oils from rest fields, within each of which there are at least two sources: the oils of the lower pay zones have shaly OM of marine origin, and the OM of the oils of the upper horizons was formed in the lacustrine environment. Rock-Eval pyrolysis revealed that some fields can be considered synclinal. Keywords: chromatography; biomarkers; steranes; hopanes; Rock-Eval pyrolysis; South-Mangyshlak.
{"title":"Geochemical analysis of oil and core samples derived from oil and gas fields in the South-Mangyshlak basin","authors":"Y. Seitkhaziyev","doi":"10.5510/ogp20220400786","DOIUrl":"https://doi.org/10.5510/ogp20220400786","url":null,"abstract":"This paper presents the results of biomarker analysis of 183 oil samples derived from 19 oil and gas fields and Rock-Eval pyrolysis performed on 93 core samples from 12 fields in the South Mangyshlak basin. According to the biomarkers, oils of studied fields were formed from shaly OM and can be divided into 3 groups: the first group includes Oymasha, Ashiagar, Atambay-Sartobe, Alatyube, Karagie North and Akkar North, which have OM of marine origin, while the second group includes oils from the Pridorozhnoye, Airantakyr, Burmasha and Bekturly fields, which have OM of lacustrine origin. The third group includes oils from rest fields, within each of which there are at least two sources: the oils of the lower pay zones have shaly OM of marine origin, and the OM of the oils of the upper horizons was formed in the lacustrine environment. Rock-Eval pyrolysis revealed that some fields can be considered synclinal. Keywords: chromatography; biomarkers; steranes; hopanes; Rock-Eval pyrolysis; South-Mangyshlak.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83997005","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}
This article analyzes the experience of operating the pump-ejector systems in the implementation of SWAG at the Samodurovskoye field. The data of the field tests of the pump-ejector systems, the parameters of the system operation are given, the failure analysis of the constituent elements is described in detail (which contributes to the further development of the SWAG technology and equipment for its implementation). A new technical solution has been proposed, which consists in the concentrated injection of a mixture with the highest gas content into wells that open reservoir zones with the largest residual reserves ("smart" injection). The conducted studies will help to more actively introduce SWAG in the fields. The proposed solution makes it possible to multiply the volume of irrationally used associated petroleum gas (which is otherwise simply flared), thereby increasing oil recovery and profits for oil producing companies. Keywords: carbon footprint reduction; injection of associated petroleum gas into the reservoir; pump-ejector systems; SWAG injection.
{"title":"Operating parameters of the pump-ejector system under SWAG injection at the Samodurovskoye field","authors":"A. Drozdov, E. Gorelkina","doi":"10.5510/ogp2022si200734","DOIUrl":"https://doi.org/10.5510/ogp2022si200734","url":null,"abstract":"This article analyzes the experience of operating the pump-ejector systems in the implementation of SWAG at the Samodurovskoye field. The data of the field tests of the pump-ejector systems, the parameters of the system operation are given, the failure analysis of the constituent elements is described in detail (which contributes to the further development of the SWAG technology and equipment for its implementation). A new technical solution has been proposed, which consists in the concentrated injection of a mixture with the highest gas content into wells that open reservoir zones with the largest residual reserves (\"smart\" injection). The conducted studies will help to more actively introduce SWAG in the fields. The proposed solution makes it possible to multiply the volume of irrationally used associated petroleum gas (which is otherwise simply flared), thereby increasing oil recovery and profits for oil producing companies. Keywords: carbon footprint reduction; injection of associated petroleum gas into the reservoir; pump-ejector systems; SWAG injection.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80780161","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}
The priority direction for the development of the oil and gas complex of Russia is the search for and development of giant oil and gas fields in terms of reserves, confined to natural megareservoirs of sedimentary strata. The article considers: conventional megareservoirs of oil and gas bearing basins (OGB), in which giant and unique oil and gas deposits are accumulated (on the example of the Pokur suite of Western Siberia); megareservoirs associated with commercial vanadium-bearing heavy oils and natural bitumen in unconventional reservoirs: bituminous sands in the province of Alberta (Western Canadian OGB), Permian natural bitumen in the Volga-Ural (Republic of Tatarstan) OGB, Cambrian bitumen in Eastern Siberia; megareservoirs of unconventional low-pore shale reservoirs. These accumulations of hydrocarbons (HC) can be considered megareservoirs: due to their vast areas and high saturation with kerogen. It is shown that accumulations of hydrocarbons in megareservoirs of shale formations, high-viscosity oils and natural bitumens accumulate ore concentrations of industrially valuable metals; an integrated approach to field development is economically in demand in the present conditions. Keywords: megareservoirs; collector; gigantic accumulations; oil and gas bearing basins; trace elements; natural bitumen; shale formations.
{"title":"Megareservoirs of hydrocarbons are accumulation of giant by oil and gas deposits","authors":"S. Punanova","doi":"10.5510/ogp2022si200724","DOIUrl":"https://doi.org/10.5510/ogp2022si200724","url":null,"abstract":"The priority direction for the development of the oil and gas complex of Russia is the search for and development of giant oil and gas fields in terms of reserves, confined to natural megareservoirs of sedimentary strata. The article considers: conventional megareservoirs of oil and gas bearing basins (OGB), in which giant and unique oil and gas deposits are accumulated (on the example of the Pokur suite of Western Siberia); megareservoirs associated with commercial vanadium-bearing heavy oils and natural bitumen in unconventional reservoirs: bituminous sands in the province of Alberta (Western Canadian OGB), Permian natural bitumen in the Volga-Ural (Republic of Tatarstan) OGB, Cambrian bitumen in Eastern Siberia; megareservoirs of unconventional low-pore shale reservoirs. These accumulations of hydrocarbons (HC) can be considered megareservoirs: due to their vast areas and high saturation with kerogen. It is shown that accumulations of hydrocarbons in megareservoirs of shale formations, high-viscosity oils and natural bitumens accumulate ore concentrations of industrially valuable metals; an integrated approach to field development is economically in demand in the present conditions. Keywords: megareservoirs; collector; gigantic accumulations; oil and gas bearing basins; trace elements; natural bitumen; shale formations.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86748293","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}
The article discusses some of the main criteria that determine the size of reserves in hydrocarbon fields. It is noted that large-scale oil and gas accumulation is possible in natural reservoirs that meet certain conditions. Reservoirs with good characteristics, in the presence of a powerful source of replenishment of hydrocarbons, can form larger deposits with sufficient trap volumes in the natural reservoir. With a homogeneous reservoir with high characteristics, the distribution area of hydrocarbon accumulation can be more concentrated. Heterogeneous reservoirs more often generate hydrocarbon accumulations scattered over the area. Using the example of unique and large deposits in the junction zone of the Yenisei- Khatanga regional trough with the West Siberian depression, a dependence with a high correlation coefficient between the value of hydrocarbon deposits and the effective volume of the trap, which is determined by the effective thickness of the reservoir and the area of distribution of the trap in the natural reservoir, was obtained. In the area of the Vankorskoye , Tagulskoye and Vostochno-Messoyakhskoye fields, the collectors of the Yakovlevskaya and Nizhnekhetskaya formations with the highest oil and gas saturation have the maximum effective capacity and distribution area. Keywords: collector; trap; effective volume; natural reservoirs; large-scale oil and gas accumulation; hydrocarbon reserves.
{"title":"Influence of reservoir characteristics on size of hydrocarbon reserves in natural reservoirs","authors":"E. Sidorchuk, S. Dobrynina","doi":"10.5510/ogp2022si200722","DOIUrl":"https://doi.org/10.5510/ogp2022si200722","url":null,"abstract":"The article discusses some of the main criteria that determine the size of reserves in hydrocarbon fields. It is noted that large-scale oil and gas accumulation is possible in natural reservoirs that meet certain conditions. Reservoirs with good characteristics, in the presence of a powerful source of replenishment of hydrocarbons, can form larger deposits with sufficient trap volumes in the natural reservoir. With a homogeneous reservoir with high characteristics, the distribution area of hydrocarbon accumulation can be more concentrated. Heterogeneous reservoirs more often generate hydrocarbon accumulations scattered over the area. Using the example of unique and large deposits in the junction zone of the Yenisei- Khatanga regional trough with the West Siberian depression, a dependence with a high correlation coefficient between the value of hydrocarbon deposits and the effective volume of the trap, which is determined by the effective thickness of the reservoir and the area of distribution of the trap in the natural reservoir, was obtained. In the area of the Vankorskoye , Tagulskoye and Vostochno-Messoyakhskoye fields, the collectors of the Yakovlevskaya and Nizhnekhetskaya formations with the highest oil and gas saturation have the maximum effective capacity and distribution area. Keywords: collector; trap; effective volume; natural reservoirs; large-scale oil and gas accumulation; hydrocarbon reserves.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90575458","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}
A. Lishchuk, D. O. Stepanov, A. T. Nagiyev, S. Ivanov, Sibaa Mohamd
The article presents the results of a study of the main operational characteristics of a new low-rate oil production technology. The features of the stages of developing a pumping unit, setting its characteristics, as well as working conditions during the passage of pilot testing in detail. Described the tests of technologies at the birthplace of the Caspian Sea «Oil Rocks» of the Republic of Azerbaijan, SOCAR, with a sense of the environment in terms of operation mode and concomitant complicating disease. Presented the results of a series of tests of the developed prototype on one of the wells in the Volga region of the Russian Federation, complicated by a significant inclinometric curvature of the wellbore, given the main characteristics of the installation's energy consumption. The considered experimental results confirm the operability of the new rodless oil production technology in various complicated operating conditions, and the energy indicators indicate its high efficiency. Keywords: oil production; marginal technology; efficiency; reliability.
{"title":"Technology of rodless oil production","authors":"A. Lishchuk, D. O. Stepanov, A. T. Nagiyev, S. Ivanov, Sibaa Mohamd","doi":"10.5510/ogp2022si200746","DOIUrl":"https://doi.org/10.5510/ogp2022si200746","url":null,"abstract":"The article presents the results of a study of the main operational characteristics of a new low-rate oil production technology. The features of the stages of developing a pumping unit, setting its characteristics, as well as working conditions during the passage of pilot testing in detail. Described the tests of technologies at the birthplace of the Caspian Sea «Oil Rocks» of the Republic of Azerbaijan, SOCAR, with a sense of the environment in terms of operation mode and concomitant complicating disease. Presented the results of a series of tests of the developed prototype on one of the wells in the Volga region of the Russian Federation, complicated by a significant inclinometric curvature of the wellbore, given the main characteristics of the installation's energy consumption. The considered experimental results confirm the operability of the new rodless oil production technology in various complicated operating conditions, and the energy indicators indicate its high efficiency. Keywords: oil production; marginal technology; efficiency; reliability.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91000785","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}
The article discusses predicting the critical parameters of production wells to assess the need to transfer them to well workover stage and put on the program of geological and technical measures (GTM). A methodology for substantiating and assessing the influence of critical values of reservoir parameters on the operation of production wells is presented. Three stages of transferring wells to workover are considered: geological, technological and analytical, and the procedure for assessing their effectiveness. The procedure for calculating the shut-in time of wells and gas losses during the transition of production wells to workover, determining the parameters of the technological regime after geological and technical measures are considered. A method has been developed for predicting the time of well shut-in due to flooding (self-killing) and assessing the timing of its operation with production flow rates at the final stage of field development. The results of the study of dependence of the critical height of the liquid column on the bottomhole pressure and the average daily flow rate of the Cenomanian well, the scheme for revealing the dependence of gas water contact level on the reservoir pressure and the volume of the sampled gas are presented. The procedure for calculating the technical and geological-production state of wells is considered according to the diagnostic rating assessment. Keywords: field; gas well; prediction; critical parameter; cenomanian; flooding; flow rate; pressure.
{"title":"Assessment of reasonability of production wells transfer to well workover stage","authors":"R. Gasumov, E. Gasumov","doi":"10.5510/ogp20220400781","DOIUrl":"https://doi.org/10.5510/ogp20220400781","url":null,"abstract":"The article discusses predicting the critical parameters of production wells to assess the need to transfer them to well workover stage and put on the program of geological and technical measures (GTM). A methodology for substantiating and assessing the influence of critical values of reservoir parameters on the operation of production wells is presented. Three stages of transferring wells to workover are considered: geological, technological and analytical, and the procedure for assessing their effectiveness. The procedure for calculating the shut-in time of wells and gas losses during the transition of production wells to workover, determining the parameters of the technological regime after geological and technical measures are considered. A method has been developed for predicting the time of well shut-in due to flooding (self-killing) and assessing the timing of its operation with production flow rates at the final stage of field development. The results of the study of dependence of the critical height of the liquid column on the bottomhole pressure and the average daily flow rate of the Cenomanian well, the scheme for revealing the dependence of gas water contact level on the reservoir pressure and the volume of the sampled gas are presented. The procedure for calculating the technical and geological-production state of wells is considered according to the diagnostic rating assessment. Keywords: field; gas well; prediction; critical parameter; cenomanian; flooding; flow rate; pressure.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87278470","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}
E. Agishev, G. Dubinsky, V. Mukhametshin, R. Bakhtizin, V. Andreev, L. Kuleshova, T. R. Vafin
The article is devoted to the search for ways to reduce the risks of water inflow during hydraulic fracturing and its more reliable design in order to increase technological efficiency. The methodology and approach to forecasting the parameters of hydraulic fracturing fractures based on the study of geomechanics of reservoir rocks are presented. Analytical, laboratory and field studies were carried out. The design adjustment was tested when planning hydraulic fracturing, the possibility of using such an algorithm of actions and its success were shown. Recommendations are given on the correct design of hydraulic fracturing and improving the quality of work, which reduces the risk of flooding of the productive reservoir. Keywords: hydraulic fracturing; geomechanical properties of the formation; increase in production; reduction of waterflooding.
{"title":"Prediction of hydraulic fracturing fracture parameters based on the study of reservoir rock geomechanics","authors":"E. Agishev, G. Dubinsky, V. Mukhametshin, R. Bakhtizin, V. Andreev, L. Kuleshova, T. R. Vafin","doi":"10.5510/ogp20220400789","DOIUrl":"https://doi.org/10.5510/ogp20220400789","url":null,"abstract":"The article is devoted to the search for ways to reduce the risks of water inflow during hydraulic fracturing and its more reliable design in order to increase technological efficiency. The methodology and approach to forecasting the parameters of hydraulic fracturing fractures based on the study of geomechanics of reservoir rocks are presented. Analytical, laboratory and field studies were carried out. The design adjustment was tested when planning hydraulic fracturing, the possibility of using such an algorithm of actions and its success were shown. Recommendations are given on the correct design of hydraulic fracturing and improving the quality of work, which reduces the risk of flooding of the productive reservoir. Keywords: hydraulic fracturing; geomechanical properties of the formation; increase in production; reduction of waterflooding.","PeriodicalId":43516,"journal":{"name":"SOCAR Proceedings","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77834773","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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