WO2025183542A1 - Method for developing groundwater reservoirs - Google Patents
Method for developing groundwater reservoirsInfo
- Publication number
- WO2025183542A1 WO2025183542A1 PCT/KZ2024/000006 KZ2024000006W WO2025183542A1 WO 2025183542 A1 WO2025183542 A1 WO 2025183542A1 KZ 2024000006 W KZ2024000006 W KZ 2024000006W WO 2025183542 A1 WO2025183542 A1 WO 2025183542A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- aquifer
- injection well
- pipes
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
Definitions
- the invention relates to the field of mining operations, namely to methods for developing underground water deposits.
- a hydropulse method of developing underground water deposits is known, based on hydrodynamic excitation of shock waves in the interval of the aquifer, restoring permeability.
- the essence of the method lies in the short-term restoration of permeability and water yield of aquifers, limited by the time of action of impact mechanisms located in the well, energy-consuming in operation.
- the prototype of the invention is a method for developing groundwater deposits in the section of an aquifer and impermeable rocks, including a system consisting of a surface tank, an injection well and a water-lifting well cased with filter columns of pipes, connected by an intermediate shaft, forming a water circulation channel.
- the disadvantages of the prototype are that the flow movement along the circulation channel occurs outside the influence of the mass of water contained in the above-ground tank, difficulties in landing and joining the casing string of the intermediate wellbore pipes with the filter columns of the injection and water-lifting wells, which reduces the reliability and efficiency of the groundwater reservoir development system.
- the objectives of the invention are to increase the reliability and efficiency of the system for developing underground water deposits.
- the technical result is an increase in the intensity and stability of water extraction from the aquifer, and an enhancement of the hydrodynamic characteristics of the flow following the circulation channel.
- the technical result is achieved in that in the known method of developing underground water deposits in the section of an aquifer and impermeable rocks, including a system consisting of a surface tank, an injection well and a water-lifting well cased with filter columns of pipes, connected by a smooth bend with an intermediate shaft, forming a water circulation channel, according to the invention, the lower part of the cavity of the above-ground tank is made with a conical narrowing, the diameter at the outlet equal to the internal diameter of the filter column of the pipes of the injection well, and is installed coaxially on the latter, the bottom of the injection well below the aquifer is left in the form of a bench with a central passage turning into an intermediate shaft, which is carried out along impermeable rocks to the junction with the filter column of the pipes of the water-lifting well, while the walls of the intermediate shaft are ground with subsequent strengthening of the impermeable rocks, forming a channel for water circulation from the bench to the entrance to the above-ground tank with one diameter.
- the set of distinctive features of the invention makes it possible to use the directed mass of water contained in the above-ground tank to increase the pressure with acceleration of the flow in the injection well, increasing the volumetric extraction of water from the aquifer through the filter column.
- a feature of the invention is leaving the bottom of the injection well below the aquifer with a bench with a central passage, in the gap between the bench and the surface tank, the flow is divided into a core and lateral components, and when the latter hit the bench, a hydraulic shock occurs, generating an alternating wave of high and low pressure, exciting an alternating hydro-pulse effect on the aquifer, increasing the intensity and stability of the interaction of the aquifer and the injection well.
- the feature of the invention is to form a channel for water circulation from the ledge to the entrance to the ground tank with one diameter, maintaining the shape and transverse size of the channel. circulation, a stable established mode of water movement is formed, without loss of speed and energy.
- the method of developing underground water deposits is carried out as follows.
- the figure shows a diagram of the implementation of a method for developing underground water deposits.
- openings 7 are made, on the hanging wall of the filter column of pipes 6, openings 8 are made, oriented in the opposite direction to the movement of water in the aquifer 1.
- the lower part of the cavity of the ground tank 9 is made with a conical narrowing and is coaxially installed on the filter column of pipes 5 of the injection well 3.
- the bottom of the injection well 3 below the aquifer 1 is left with a ledge 10 with a central passage 11, which passes into an intermediate shaft 12, which is carried out along water-resistant rocks 2 to the junction with the filter column of pipes 6 of the water-lifting well 4.
- the walls of the intermediate shaft are ground with a tool saturated with diamond powder, and subsequent strengthening of the waterproof rocks is carried out with a high-temperature heater.
- the filter column of pipes 6 of the injection well 4 is connected to the surface tank 9 by means of a pipeline 13, forming a water circulation channel from the bench 10 to the entrance to the surface tank 9 with one diameter.
- a valve 14 and a branch pipe 15 are installed to drain water to consumers.
- the arrows indicate the direction of water movement in the aquifer.
- valve 14 of surface tank 9 When valve 14 of surface tank 9 is opened, the pressure flow of water moves with acceleration towards the bottom of injection well 3, with water being withdrawn from aquifer 1 through openings 7 of filter column of pipes 5.
- a water circulation channel is formed, from the bench 10 to the above-ground tank 9 made with one diameter, due to which the water flow, without hydrodynamic and mechanical interference, moves along the intermediate shaft 12, and then along the filter column 6 of the water-lift pipe 4, entraining water from the aquifer 1 through the openings 8 of the filter column 6, and through the pipeline 13 enters the above-ground tank 9 from top to bottom.
- the volume of water taken from aquifer 1 is directed to consumers through pipe 15.
- the system can be used particularly effectively in the development of low-pressure and unpressured groundwater deposits.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
СПОСОБ РАЗРАБОТКИ ЗАЛЕЖЕЙ ПОДЗЕМНЫХ ВОД METHOD OF DEVELOPING GROUNDWATER DEPOSITS
Изобретение относится к области горных работ, а именно к способам разработки месторождений подземных вод. The invention relates to the field of mining operations, namely to methods for developing underground water deposits.
Известен гидроимпульсный способ освоения залежей подземных вод, основанный на гидродинамическом возбуждении ударных волн в интервале водоносного горизонта, восстановлением проницаемости. Д.Н.Башкатов. Справочник по бурению скважин на воду. Москва, Недра, 1979, с.515-516. A hydropulse method of developing underground water deposits is known, based on hydrodynamic excitation of shock waves in the interval of the aquifer, restoring permeability. D.N. Bashkatov. Handbook of drilling wells for water. Moscow, Nedra, 1979, pp. 515-516.
Суть способа заключается в кратковременном восстановлении проницаемости и водоотдачи водоносных горизонтов, ограниченное временем действии ударных механизмов, расположенных в скважине, энергозатратных в работе. The essence of the method lies in the short-term restoration of permeability and water yield of aquifers, limited by the time of action of impact mechanisms located in the well, energy-consuming in operation.
Прототип изобретения - способ разработки залежей подземных вод в разрезе водоносного горизонта и водоупорных пород, включающий систему состоящую из наземной емкости, нагнетательной и водоподъемной скважины обсаженные фильтровыми колоннами труб, связанные промежуточным стволом, образующие канал циркуляции воды. Патент на изобретение №275628 Способ разработки залежей подземных вод Российской Федерации с датой государственной регистрации 29 июля 2021 г. The prototype of the invention is a method for developing groundwater deposits in the section of an aquifer and impermeable rocks, including a system consisting of a surface tank, an injection well and a water-lifting well cased with filter columns of pipes, connected by an intermediate shaft, forming a water circulation channel. Patent for invention No. 275628 Method for developing groundwater deposits of the Russian Federation with the state registration date of July 29, 2021.
Недостатки прототипа - движение потока по каналу циркуляции происходит вне воздействия массы воды заключенной в наземной емкости, трудности посадки и стыковки обсадной колонны труб промежуточного ствола с фильтровыми колоннами нагнетательной и водоподъемной скважины, что снижают надежность и эффективность системы разработки залежей подземных вод. The disadvantages of the prototype are that the flow movement along the circulation channel occurs outside the influence of the mass of water contained in the above-ground tank, difficulties in landing and joining the casing string of the intermediate wellbore pipes with the filter columns of the injection and water-lifting wells, which reduces the reliability and efficiency of the groundwater reservoir development system.
Задачи изобретения - повышение надежности и эффективности системы разработки залежей подземных вод. The objectives of the invention are to increase the reliability and efficiency of the system for developing underground water deposits.
Технический результат - повышение интенсивности и стабильности отбора воды из водоносного горизонта, усиления гидродинамических характеристик потока следующегося по каналу циркуляции. The technical result is an increase in the intensity and stability of water extraction from the aquifer, and an enhancement of the hydrodynamic characteristics of the flow following the circulation channel.
Технический результат достигается тем, что в известном способе разработки залежей подземных вод в разрезе водоносного горизонта и водоупорных пород, включающий систему состоящую из наземной емкости, нагнетательной и водоподъемной скважины обсаженные фильтровыми колоннами труб, связанные плавным изгибом промежуточным стволом, образующие канал циркуляции воды, согласно изобретению, нижнюю часть полости наземной емкости выполняют конусным сужением, диаметром на выходе равным внутреннему диаметру фильтровой колонны труб нагнетательной скважины, и соосно устанавливают на последней, дно нагнетательной скважины ниже водоносного горизонта оставляют в виде уступа с центральным проходом, переходящим в промежуточный ствол, которого проводят по водоупорным породам до стыка с фильтровой колонной труб водоподъемной скважины, при этом стенки промежуточного ствола шлифуют с последующим упрочнением водоупорных пород, образуют канал циркуляции воды от уступа до входа в наземную емкость одним диаметром. The technical result is achieved in that in the known method of developing underground water deposits in the section of an aquifer and impermeable rocks, including a system consisting of a surface tank, an injection well and a water-lifting well cased with filter columns of pipes, connected by a smooth bend with an intermediate shaft, forming a water circulation channel, according to the invention, the lower part of the cavity of the above-ground tank is made with a conical narrowing, the diameter at the outlet equal to the internal diameter of the filter column of the pipes of the injection well, and is installed coaxially on the latter, the bottom of the injection well below the aquifer is left in the form of a bench with a central passage turning into an intermediate shaft, which is carried out along impermeable rocks to the junction with the filter column of the pipes of the water-lifting well, while the walls of the intermediate shaft are ground with subsequent strengthening of the impermeable rocks, forming a channel for water circulation from the bench to the entrance to the above-ground tank with one diameter.
Совокупностью отличительных признаков изобретения, формой выполнения полости нижней части наземной емкости, местом ее установления, появляется возможность использования направленной массы воды заключенной в наземной емкости для повышения напора с ускорением потока в нагнетательной скважине, усилением объемного отбора воды из водоносного горизонта через фильтровую колонну. The set of distinctive features of the invention, the form of execution of the cavity of the lower part of the above-ground tank, the place of its installation, makes it possible to use the directed mass of water contained in the above-ground tank to increase the pressure with acceleration of the flow in the injection well, increasing the volumetric extraction of water from the aquifer through the filter column.
Признаком изобретения, оставления дно нагнетательной скважины ниже водоносного горизонта со уступом с центральным проходом, в промежутке между уступом и наземной емкости происходит разделения потока на ядро и боковые составляющие, и при попадании последних на уступ возникает гидравлический удар, зарождением чередующейся волны повышенного и пониженного давления, возбуждением знакопеременного гидроимпульсного воздействия на водоносный горизонт, повышением интенсивности и стабильности взаимодействия водоносного горизонта и нагнетательной скважины. A feature of the invention is leaving the bottom of the injection well below the aquifer with a bench with a central passage, in the gap between the bench and the surface tank, the flow is divided into a core and lateral components, and when the latter hit the bench, a hydraulic shock occurs, generating an alternating wave of high and low pressure, exciting an alternating hydro-pulse effect on the aquifer, increasing the intensity and stability of the interaction of the aquifer and the injection well.
При этом в силу характера распределения скорости и давлений в потоке, частицы воды боковых составляющих потока проникают в ядро с передачей энергии, усилением гидродинамических характеристик потока перетекающего через центральный проход уступа в промежуточный ствол. In this case, due to the nature of the distribution of speed and pressure in the flow, water particles of the lateral components of the flow penetrate into the core with the transfer of energy, strengthening the hydrodynamic characteristics of the flow flowing through the central passage of the bench into the intermediate shaft.
Признаками изобретения, проводкой промежуточного ствола по водоупорным породам до стыка с фильтровой колонной труб водоподъемной скважины, шлифованием стенки с последующим упрочнением водоупорных пород, устраняются шероховатости и трещины на стенках, причины появления вихревых образовании и утечки воды со снижением напора и скорости потока, тем самым исключаются местные гидравлические сопротивления и снижение извлекаемости воды на всей протяженности промежуточного ствола. The features of the invention, the passage of an intermediate shaft through impermeable rocks to the junction with the filter column of the water-lifting well pipes, grinding of the wall with subsequent strengthening of the impermeable rocks, eliminate roughness and cracks on the walls, the causes of the appearance of vortex formations and water leakage with a decrease in pressure and flow velocity, thereby eliminating local hydraulic resistance and a decrease in water recovery along the entire length of the intermediate shaft.
Признаком изобретения, образуют канал циркуляции воды от уступа до входа в наземную емкость одним диаметром, сохранением формы и поперечного размера канала циркуляции, формируется устойчиво установившийся режим движения воды, без потери скорости и энергии. The feature of the invention is to form a channel for water circulation from the ledge to the entrance to the ground tank with one diameter, maintaining the shape and transverse size of the channel. circulation, a stable established mode of water movement is formed, without loss of speed and energy.
Способ разработки залежей подземных вод осуществляют следующим образом.The method of developing underground water deposits is carried out as follows.
На фигуре изображена схема реализации способа разработки залежей подземных вод. The figure shows a diagram of the implementation of a method for developing underground water deposits.
После вскрытия водоносного горизонта 1 и водоупорных пород 2 нагнетательной скважиной 3 и водоподъемной 4, скважины обсаживают фильтровыми колоннами труб соответственно 5 и 6. After opening the aquifer 1 and impermeable rocks 2 by injection well 3 and water-lift well 4, the wells are cased with filter columns of pipes 5 and 6, respectively.
На стенке фильтровой колонны труб 5 выполняют отверстия 7, на висячей стенке фильтровой колонны труб 6 отверстия 8, ориентированные во встречном направлении движению воды в водоносном горизонте 1. On the wall of the filter column of pipes 5, openings 7 are made, on the hanging wall of the filter column of pipes 6, openings 8 are made, oriented in the opposite direction to the movement of water in the aquifer 1.
Нижнюю часть полости наземной емкости 9 выполняют конусным сужением, и соосно устанавливают на фильтровой колонне труб 5 нагнетательной скважины 3. The lower part of the cavity of the ground tank 9 is made with a conical narrowing and is coaxially installed on the filter column of pipes 5 of the injection well 3.
Дно нагнетательной скважины 3 ниже водоносного горизонта 1 оставляют со уступом 10 с центральным проходом 11, переходящим в промежуточный ствол 12, которого проводят по водоупорным породам 2 до стыка с фильтровой колонной труб 6 водо подъемной скважины 4. The bottom of the injection well 3 below the aquifer 1 is left with a ledge 10 with a central passage 11, which passes into an intermediate shaft 12, which is carried out along water-resistant rocks 2 to the junction with the filter column of pipes 6 of the water-lifting well 4.
После этого, стенки промежуточного ствола шлифуют инструментом насыщенным порошковым алмазом, последующее упрочнение водоупорных пород осуществляют высокотемпературным нагревателем. After this, the walls of the intermediate shaft are ground with a tool saturated with diamond powder, and subsequent strengthening of the waterproof rocks is carried out with a high-temperature heater.
Фильтровую колонну труб 6 нагнетательной скважины 4 соединяют с наземной емкостью 9 посредством трубопровода 13, образованием канала циркуляции воды от уступа 10 до входа в наземную емкость 9 одним диаметром. The filter column of pipes 6 of the injection well 4 is connected to the surface tank 9 by means of a pipeline 13, forming a water circulation channel from the bench 10 to the entrance to the surface tank 9 with one diameter.
На наземной емкости 9 устанавливают вентиль 14 и патрубок 15 для отвода воды потребителям. Стрелками указаны направления движения воды в водоносном горизонте. On the above-ground tank 9, a valve 14 and a branch pipe 15 are installed to drain water to consumers. The arrows indicate the direction of water movement in the aquifer.
Принцип действии. При открытии вентиля 14 наземной емкости 9, напорный поток воды с ускорением движется в сторону забоя нагнетательной скважины 3, с отбором воды из водоносного горизонта 1 через отверстия 7 фильтровой колонны труб 5. Operating principle. When valve 14 of surface tank 9 is opened, the pressure flow of water moves with acceleration towards the bottom of injection well 3, with water being withdrawn from aquifer 1 through openings 7 of filter column of pipes 5.
Дойдя до дна забоя нагнетательной скважины 3, на уступе 10 поток разделяется на ядро и боковые составляющие, возникает гидравлический удар с чередованием волны повышенного и пониженного давления, усилением воздействия знакопеременных гидроимпульсов на водоносный горизонт 1, и на ядро потока перетекающего через центральный проход 11 уступа 10 в промежуточный ствол 12, пройденный по водоупорным породам 2 до стыка с фильтровой колонной труб 6 водо подъемной скважины 4, посредством трубопровода 13 соединенной с наземной емкостью 9. Тем самым образуется канал циркуляции воды, от уступа 10 до наземной емкости 9 выполненной одним диаметром, в силу чего поток воды без гидродинамических и механических помех двигаясь по промежуточному стволу 12, и далее по фильтровой колонне 6 водоподъемной трубы 4, увлекая воду из водоносного горизонта 1 через отверстия 8 фильтровой колонны 6, по трубопроводу 13 поступает в наземную емкость 9 сверху вниз. Having reached the bottom of the face of the injection well 3, on the bench 10 the flow is divided into a core and lateral components, a hydraulic shock occurs with alternating waves of high and low pressure, increasing the impact of alternating hydraulic impulses on the aquifer 1, and on the core of the flow flowing through the central passage 11 of the bench 10 into the intermediate shaft 12, passed through impermeable rocks 2 to the junction with the filter column of pipes 6 of the water-lifting well 4, by means of a pipeline 13 connected to the surface tank 9. In this way, a water circulation channel is formed, from the bench 10 to the above-ground tank 9 made with one diameter, due to which the water flow, without hydrodynamic and mechanical interference, moves along the intermediate shaft 12, and then along the filter column 6 of the water-lift pipe 4, entraining water from the aquifer 1 through the openings 8 of the filter column 6, and through the pipeline 13 enters the above-ground tank 9 from top to bottom.
При этом объем воды отбираемый из водоносного горизонта 1, через патрубок 15 направляется к потребителям. In this case, the volume of water taken from aquifer 1 is directed to consumers through pipe 15.
На сегодняшнем уровне техники и технологии направленного бурения скважин, сооружения системы связанных скважин, предназначенной для реализации на практике принудительного самоизлива подземных вод, не представляет трудности. At the current level of technology and directional drilling of wells, the construction of a system of connected wells intended for the practical implementation of forced self-discharge of groundwater does not present any difficulties.
Система может быть особенно эффективно использована при разработке залежей слабонапорных и безнапорных подземных вод. The system can be used particularly effectively in the development of low-pressure and unpressured groundwater deposits.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KZ2024/000006 WO2025183542A1 (en) | 2024-02-27 | 2024-02-27 | Method for developing groundwater reservoirs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KZ2024/000006 WO2025183542A1 (en) | 2024-02-27 | 2024-02-27 | Method for developing groundwater reservoirs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025183542A1 true WO2025183542A1 (en) | 2025-09-04 |
Family
ID=96921811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KZ2024/000006 Pending WO2025183542A1 (en) | 2024-02-27 | 2024-02-27 | Method for developing groundwater reservoirs |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2025183542A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3531547A1 (en) * | 1985-09-04 | 1987-03-05 | Ortlam Soester Ferun | Method for extracting water from ground water-bearing strata, and design of a well for implementing this method |
| US5597045A (en) * | 1993-04-22 | 1997-01-28 | Flowtex-Service Gesellschaft Fur Horizontalbohrsysteme Mbh & Co. Kg | Process and tool for laying underground collector mains for liquids and gases |
| RU2499869C1 (en) * | 2012-08-21 | 2013-11-27 | Михаил Иванович Голубенко | Water supply well with underground water intake |
| US8596351B2 (en) * | 2011-04-12 | 2013-12-03 | ARCADIS Corporate Services, Inc. | Horizontal in-well treatment system and source area bypass system and method for groundwater remediation |
| RU2752628C1 (en) * | 2020-10-28 | 2021-07-29 | Товарищество с ограниченной ответственностью "Научно-внедренческий центр "Алмас" | Method for developing underground water deposits |
-
2024
- 2024-02-27 WO PCT/KZ2024/000006 patent/WO2025183542A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3531547A1 (en) * | 1985-09-04 | 1987-03-05 | Ortlam Soester Ferun | Method for extracting water from ground water-bearing strata, and design of a well for implementing this method |
| US5597045A (en) * | 1993-04-22 | 1997-01-28 | Flowtex-Service Gesellschaft Fur Horizontalbohrsysteme Mbh & Co. Kg | Process and tool for laying underground collector mains for liquids and gases |
| US8596351B2 (en) * | 2011-04-12 | 2013-12-03 | ARCADIS Corporate Services, Inc. | Horizontal in-well treatment system and source area bypass system and method for groundwater remediation |
| RU2499869C1 (en) * | 2012-08-21 | 2013-11-27 | Михаил Иванович Голубенко | Water supply well with underground water intake |
| RU2752628C1 (en) * | 2020-10-28 | 2021-07-29 | Товарищество с ограниченной ответственностью "Научно-внедренческий центр "Алмас" | Method for developing underground water deposits |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110644963B (en) | Method for exploiting hydrate based on multilateral well | |
| RU2139417C1 (en) | Oil production method | |
| CN110397428A (en) | A coalbed methane displacement method for joint exploitation of coalbed methane by vertical wells and U-shaped butt-joint wells | |
| CN104453803B (en) | Composite coal gas reservoir multilayer commingling production method and structure | |
| CN105952378A (en) | Tree-shape structure well drilling and completion and yield increasing method | |
| WO2016078627A1 (en) | Production enhancement system using robot drill for drilling multi-branched fishbone and radial microholes in shale gas reservoir, and method therefor | |
| RU2186203C2 (en) | Method of well operation | |
| CN102434192A (en) | Device and method for enhancing coal seam fracturing effect | |
| RU2570157C1 (en) | Method for enhanced oil recovery for deposit penetrated by horizontal well | |
| CN107575159A (en) | Heat-exchange tube mounting process in a kind of geothermal well well | |
| WO2025183542A1 (en) | Method for developing groundwater reservoirs | |
| RU2225938C1 (en) | Methods for exploiting oil extracting wells | |
| RU2511329C1 (en) | Method of action on coal bed | |
| Miao et al. | Development status and prospect of staged fracturing technology in horizontal wells | |
| RU2814439C1 (en) | Method for developing groundwater deposits | |
| CN207348839U (en) | A kind of medium and deep sandstone underground heat horizontal well mining structure | |
| WO2008100176A1 (en) | Method for developing hydrocarbon accumulations | |
| CN204041049U (en) | The hydrocyclone downhole oil-water separation device of drive revolving vane | |
| CN111946300A (en) | Same-well same-layer multi-lateral self-injection-production downhole fluid separation self-driving well and production method | |
| EA045574B1 (en) | METHOD FOR DEVELOPING GROUNDWATER DEPOSITS | |
| RU2319831C1 (en) | Method for oil production from low-permeable reservoirs | |
| CN116025328B (en) | Stacked horizontal well gas production system with inclined-vertical gas bearing layers and construction method | |
| RU2510456C2 (en) | Formation method of vertically directed fracture at hydraulic fracturing of productive formation | |
| RU2804726C1 (en) | Device for groundwater recovery | |
| Tulinius et al. | Stimulating a high enthalpy well by thermal cracking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24927558 Country of ref document: EP Kind code of ref document: A1 |