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118 results about "Well drainage" patented technology
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Well drainage means drainage of agricultural lands by wells. Agricultural land is drained by pumped wells (vertical drainage) to improve the soils by controlling water table levels and soil salinity.
Combined sand drain drainage structure suitable for high slope and construction method of combined sand drain drainage structure
The invention provides a combined sand drain drainage structure suitable for a high slope. The combined well drainage structure comprises a row of vertical sand well structures arranged in the side slope along the slope surface line of the side slope and siphon drainage structures arranged at the bottom ends of the row of vertical sand well structures. The vertical sand well structure comprises a vertical well hole, a water permeable pipe and a gravel inverted filter layer, and the water permeable pipe is filled with gravel; the siphon drainage structure comprises a siphon water guide pipe, a horizontal drainage well structure and an inclined drainage pipe. Rainwater of the high slope is collected through the sand wells, the rainwater is collected into the horizontal drainage wells under the action of gravity, underground water collected by the horizontal drainage wells is drained from the drainage holes in the lowest end of the supporting structure through the siphon guide pipes, then negative pressure is generated in the horizontal drainage wells, and drainage of the vertical sand wells is further accelerated. The construction difficulty of the deep drainage structure of the high slope is reduced, and it is guaranteed that underground water enriched under the effects of rainfall, underground pipeline water leakage and the like can be drained in time and rapidly.
Owner:WUHAN SURVEYING GEOTECHN RES INST OF MCC
Drainage and gas production device and method for horizontal well for coalbed methane of coal mine area
PCT designated stage expiredWO2025097668A1Cleaning apparatusFluid removalMining engineeringHorizontal wells
A drainage and gas production device for a horizontal well for coalbed methane of a coal mine area, the device comprising a surface horizontal well and a downhole borehole section (6), wherein a horizontal section (4) of the surface horizontal well is in communication with the downhole borehole section (6), a communication point (7) of the horizontal section (4) of the surface horizontal well and the downhole borehole section (6) is located at an end A or a middle or an end B of the horizontal section (4) of the surface horizontal well; and the other end of the downhole borehole section (6) is connected to a gas-water-slag separation device (15) located in a downhole drill site (5).
Owner:HUAINAN MINING IND GRP +1
Agricultural light complementary multipurpose comprehensive treatment irrigation and drainage system for saline-alkali soil
PendingCN119234497AGuaranteed normal growthreduce consumption costSoil lifting machinesPV power plantsAlkali soilWater production
The invention belongs to the technical field of saline-alkali land treatment, and particularly relates to an agriculture and light complementary multipurpose comprehensive treatment irrigation and drainage system for saline-alkali land, comprising: a planting area for planting crops or pasture; the saline-alkali soil vertical shaft drainage system is arranged in a planting area and used for discharging excessive underground water, collecting saline water, maintaining a low underground water level to restrain salt return and guaranteeing normal growth of crops. The photovoltaic power generation panel assembly is arranged above the planting area and used for reducing evaporation heat dissipation of crops or forage grass, inhibiting salt accumulation and providing electric energy; the raw water tank is used for collecting saline water; the water purification system is used for purifying and desalting saline water; the salt manufacturing system is used for preparing chemical raw materials by using concentrated water; the produced water reservoir is used for storing purified water; the irrigation system is communicated with one water outlet end of the produced water reservoir and is used for irrigating crops or pasture and the like; and the electrolytic storage system is communicated with the other water outlet end of the produced water reservoir and is used for electrolyzing the purified water to generate hydrogen and oxygen and storing the hydrogen and the oxygen.
Owner:XIAN UNIV OF TECH
Method for optimizing drainage gas recovery process system of complex gas well
ActiveCN120524867AFluid removalDynamo-electric converter controlProcess engineeringEnvironmental engineering
The invention relates to the technical field of data reasoning, and discloses a complex gas well drainage gas recovery process system optimization method, which comprises the following steps: acquiring geological characteristic parameters and real-time production dynamic parameters of a gas well; identifying stable production constraint conditions of the gas well according to the geological characteristic parameters and the real-time production dynamic parameters; establishing an optimization target of a gas well drainage gas recovery process based on the stable production constraint condition; determining a critical liquid-carrying flow threshold value of the gas well according to the shaft accumulated liquid distribution pattern of the gas well; generating an optimal exhaust scheme of the gas injection speed and period in the gas well by taking the critical liquid-carrying flow threshold value and the optimization target as boundary conditions; according to the optimal exhaust scheme, the opening degree of a throttler in the gas well and the gas injection time sequence are adjusted; the optimization quality of the gas well drainage gas recovery process system can be improved.
Owner:SHAANXI HENGYU OIL & GAS ENG TECH SERVICE CO LTD
Drainage well drainage hole with plugging structure
ActiveCN222314205Ustable positionEasy to moveFatty/oily/floating substances removal devicesSewerage structuresWater sourceWater flow
The utility model relates to the technical field of drainage wells, in particular to a drainage well drainage hole with a plugging structure, which comprises a plugging assembly and a drainage assembly, the plugging assembly comprises a drainage well main body, a connecting pipeline, a sliding piece and an inserting block, and the drainage assembly comprises a first motor, a turntable, a main bevel gear, an auxiliary bevel gear and a support. The drainage well drainage hole with the blocking structure has the advantages that when the drainage well body needs to be blocked, the sliding piece extends out of the middle of the connecting pipeline to be inserted into the inner side wall of the drainage well body and is completely attached to the inner side wall of the drainage well body, and the drainage well body is blocked; the drainage assembly is used for guiding and filtering a water source introduced into the drainage well body and stirring the water source, so that sundries do not block through holes in the side wall of the rotary disc any more, the rotary disc drives the scraper to continuously stir the sundries in the water source when rotating, the sundries are guided into the inclined pipeline along with water flow in a matched mode, and the possibility that the interior of the drainage well body is blocked is reduced.
Owner:JIANGSU DAIZHOU ENGINEERING MANAGEMENT CO LTD
Underground coal mine intelligent drainage device and operation method thereof
PendingCN119321344Aeasy to useeasy to cleanDrainageStationary filtering element filtersDrainage tubesMechanical engineering
The invention belongs to the technical field of mine drainage, and particularly relates to a coal mine underground intelligent drainage device and an operation method thereof. Comprising a first mounting base, a second mounting base, a water suction pump and a main pipe, the water suction pump is fixedly mounted at the top of the first mounting base, a drainage pipe is fixedly connected to one end of the water suction pump, a three-way pipe is fixedly connected to the other end of the water suction pump, first water inlet pipes are fixedly connected to the two sides of the three-way pipe, and branch pipes are fixedly connected to the ends, away from the three-way pipe, of the first water inlet pipes; the ends, away from the first water inlet pipe, of the two branch pipes are fixedly connected with the main pipe, and a first valve is installed on the first water inlet pipe. According to the invention, coal cinder attached to the filter element can be effectively cleaned, convenience is provided for reuse of the filter element, seamless connection drainage can be realized by adjusting a waterway, and the situation that the drainage efficiency of a mine is reduced due to stopping of mine drainage is avoided.
Owner:SHANXI TAIGONG MINING TEACHING EQUIP
Production control method and system based on gas well multi-stage joint modeling
The invention provides a production control method and system based on gas well multi-stage joint modeling, and a dynamic self-adaptive drainage gas recovery decision system is constructed by fusing real-time monitoring data and historical production data. A coupling model set is designed according to the gas-water ratio, wellhead pressure and gas production rate characteristics of different production stages of a gas well, and recognition of the production stages and continuous prediction of the gas-water ratio are achieved. On the basis of dynamic feature fusion and implicit collaborative coding, stage-adaptive parameter configuration is generated, parameter space topology reconstruction and a multi-target game verification mechanism are introduced, and a closed-loop control link from data-driven modeling to physical verification optimization is formed through physical constraint embedding, Pareto optimal search and Nash equilibrium convergence. According to the gas well drainage gas recovery control method, gas well full-life-cycle self-adaptive regulation and control and multi-target collaborative optimization are achieved, the problems that in gas well drainage gas recovery, stage adaptability is poor, and multi-target conflicts exist are solved, the productivity is remarkably improved, and the operation and maintenance risk is reduced.
Owner:SICHUAN XUCHEN DIGITAL TECHNOLOGY CO LTD
Underground compressed air energy storage chamber surrounding rock drainage system and method
The invention provides an underground compressed air energy storage chamber surrounding rock drainage system and method.The underground compressed air energy storage chamber surrounding rock drainage system comprises an inner drainage structure arranged in a chamber and an outer drainage structure arranged on one side of the chamber, and the inner drainage structure comprises a first drainage pipe and a second drainage pipe which are arranged on the peripheral side of the chamber; a first water collecting cavity and a second water collecting cavity are formed in the lower side of the chamber, the first drainage pipe is communicated with the first water collecting cavity, the first water collecting cavity is communicated with the second water collecting cavity, a filtering structure is arranged between the first water collecting cavity and the second water collecting cavity, and a supporting structure is arranged in the chamber. According to the underground chamber, crack water and underground water can be collected and then drained, so that a good drainage effect can be achieved, permeated water can be drained through the water seepage and drainage layer, a good anti-seepage effect can be achieved, the crack water is prevented from corroding the steel lining sealing layer, and the safety of the chamber is guaranteed; the sliding plate can drive the supporting structure and the cleaning structure to slide.
Owner:SHANDONG TIANWU SHAPING TECH CO LTD
Drainage device for underground coal mine
The utility model relates to the technical field of mine drainage, in particular to an underground coal mine drainage device which comprises a mine base layer and further comprises a detection assembly, a drainage assembly and a drainage assembly. The sewage discharging assembly is arranged at the bottom of the inner cavity of the water sump and facilitates discharging sludge sinking to the bottom. According to the utility model, the KJ1158 hydrological dynamic observation system is utilized to monitor information such as flow, flow velocity and the like of each underground site in real time, and the KJ1137 mine hydrological dynamic monitoring and early warning system can trigger an alarm to remind, so that workers can respond quickly, and the working efficiency is improved; redundant accumulated water can be quickly drained through the drainage assembly; the accumulated water level height is monitored in real time through the detection assembly, and accumulated water level height data are visually displayed to workers, so that the data are collected and analyzed in a centralized manner, and equipment operation is convenient to manage and optimize; sludge sinking to the bottom of the water sump inner cavity can be discharged through the sewage discharging assembly, and therefore normal operation and efficient drainage of the mine water sump can be guaranteed.
Owner:HUTUBI COUNTY COAL DIVERSIFIED OPERATIONS CO LTD
Ecological slope protection structure
The utility model relates to the technical field of slope protection structures, in particular to an ecological slope protection structure. According to the technical scheme, the device comprises two sets of cross protection frames, each set of cross protection frame comprises a cross protection plate, a connecting table is arranged at the end corner position of one end of each cross protection plate, and a protection pier is arranged at the end corner position of the end, away from the connecting table, of each cross protection plate; a lower side plate frame and an upper side plate frame are arranged on the sides, close to each other, of the fender piers on the two sets of crossed protective frames correspondingly. The cross protection frame, the lower side plate frame and the upper side plate frame are integrally arranged in the shape of the inclined plane rhombus, so that the slope protection frame can be better matched with a sloping field, meanwhile, the rhombus structure can provide a better drainage effect, water retention on the slope surface can be reduced, landslide or soil erosion caused by accumulated water is avoided, and the slope protection effect is improved. Meanwhile, flexible adjustment can be achieved according to different terrains and gradients, different slope protection requirements are met, the self-locking performance and stability are high, external pressure and stress can be effectively dispersed, and slope landslide or collapse is prevented.
Owner:EZHOU WATER RESOURCES CONSTR DESIGN RES INST
A method for determining a gas well water drainage and gas production process
The present invention belongs to the technical field of oil and gas field development and relates to a method for determining a gas well drainage gas production process. Aiming at the problems that traditional methods rely on empirical judgment, lack quantitative analysis, and are difficult to accurately evaluate the applicability and effect of the process, the present invention collects the downhole string and production data of the gas well, calculates parameters such as the apparent velocities and densities of the gas phase and liquid phase; draws the inflow / outflow dynamic curve to judge whether the gas well can produce stably; then performs performance analysis on the preferred string, wellhead pressurization, gas lift, foam drainage, and plunger processes respectively to determine the lower limit of action of each process and unify the quantitative parameters; finally, a scoring and weighting system is customized, and a score is obtained through the comprehensive decision-making model for drainage gas production, and the process with the highest score is the optimal process. Compared with the existing methods, this method improves the scientificity and accuracy of process selection, helps to improve the gas well production efficiency and economic benefits, and reduces costs.
Owner:SOUTHWEST PETROLEUM UNIV +1
Dust fall system for flat ground type red mud storage yard adopting filter cake biscuit method and use method of dust fall system
PendingCN119186156ASimple structurereduce consumptionFatty/oily/floating substances removal devicesSewerage structuresWater useRed mud
The invention discloses a dust falling system for a flat ground type red mud storage yard through a filter cake method and a using method.The dust falling system comprises the red mud storage yard, nozzles, valves, a water conveying main pipe, water conveying branch pipes, a water drainage vertical shaft, a water drainage pipe, a clarification tank, a water return tank, a lifting pump and a partition dam, the red mud storage yard is high in the periphery and low in the middle, and dam bodies are arranged on the periphery of the red mud storage yard; the clarification tank and the water return tank are arranged outside the red mud pile yard, the partition dam is arranged between the clarification tank and the water return tank and provided with an overflow port so that the clarification tank can be communicated with the water return tank, the lifting pump is installed in the water return tank and connected with the water delivery main pipe, the water delivery branch pipes are connected with the water delivery main pipe, and the spray heads and the valves are installed on the water delivery branch pipes. The drainage vertical shaft is arranged in the red mud storage yard and is lower than a dam body around the red mud storage yard, the drainage vertical shaft is communicated with the clarification tank through a drainage pipe, and the drainage pipe slopes towards the clarification tank. The device is simple in structure, dust falling is achieved through spraying of the nozzles, and water is recycled through the drainage vertical shaft and the drainage pipe.
Owner:GUIYANG ALUMINUM MAGNESIUM DESIGN & RESEARCH INSTITUTE CO LTD
Coal slime deposition amount detection device for underground coal mine sump
A coal mine underground water sump coal slime deposition amount detection device belongs to the technical field of coal mine detection devices, can solve the problem that the coal slime deposition amount of an existing coal mine underground main water sump does not have a good dynamic detection means, and comprises a base, vertical rods are arranged at the two ends of the base, a transverse rod is arranged at the top ends of the vertical rods, and a graduated scale is arranged on the side surface of the transverse rod. A first fixed pulley, a second fixed pulley and a third fixed pulley are arranged at the two ends and the bottom of the transverse rod respectively, a winch is arranged on one side of the vertical rod, a steel wire rope is arranged on the winch, and one end of the steel wire rope sequentially penetrates through the first fixed pulley, the second fixed pulley and the third fixed pulley and then is connected with a falling block. By using the device, the siltation amount of the coal slime in the underground sump can be dynamically detected at any time, coal slime particles can be prevented from abrading a main drainage system and blocking a water suction opening of the main drainage pump, and the hidden danger endangering the safety of mine drainage is completely eradicated.
Owner:WANGZHUANG COAL MINE SHANXI LUAN ENVIRONMENT PROTECTION ENERGY SOURCE SWITCH
A roadbed structure and airport runway for preventing and controlling pot cover effect
ActiveCN113186767Bprevent backflowFatty/oily/floating substances removal devicesSewerage structuresStructural engineeringRoad surface
The present invention discloses a roadbed structure and an airport runway for preventing and controlling pot cover effect, comprising a permeable layer, a waterproof layer, a drainage cushion layer and a pavement structure layer arranged in sequence from bottom to top, the soil surface area on the side of the pavement structure layer is backfilled with a clay layer, the drainage cushion layer extends to the bottom of the clay layer, a drainage seepage well arranged longitudinally and connected to the permeable layer is formed below the clay layer, a longitudinally arranged waterproof board is formed on the side of the drainage seepage well close to the pavement structure layer, the waterproof board longitudinally passes through the drainage cushion layer from the clay layer and extends to the waterproof layer, and a one-way drainage pipeline is arranged on the waterproof board, the inlet of the one-way drainage pipeline is connected to the drainage cushion layer, the drainage cushion layer is used to divert water below the pavement structure layer to the inlet of the one-way drainage pipeline, and the outlet of the one-way drainage pipeline is connected to the drainage seepage well. In actual application, the accumulated water between the pavement structure layer and the waterproof layer can be smoothly drained to the drainage seepage well; at the same time, water backflow to the pavement structure layer can be avoided.
Owner:CIVIL AVIATION AIRPORT PLANNING & DESIGN RES INST CO LTD
Airport ground well drainage system
ActiveCN224078337UArtificial islandsSewerage structuresProgrammable logic controllerEnvironmental engineering
The utility model relates to an airport ground well drainage system, which is characterized in that a water collecting pit is arranged at the bottom of a well pit of a ground well, and the drainage system comprises a drainage pump, a first liquid level sensor, a second liquid level sensor, a drainage hose, a one-way check valve, a drainage embedded part and a ground well PLC (Programmable Logic Controller) control box, the drainage pump, the first liquid level sensor and the second liquid level sensor are all electrically connected with the ground well PLC control box, the drainage pump is arranged in a sump and connected with the one-way check valve through a drainage hose, the one-way check valve is connected with the drainage embedded part through the drainage hose, and therefore a drainage main loop of a ground well is formed. And water in the ground well is discharged into a ground airport apron or a drainage pipe network through the main loop. The two liquid level sensors are adopted, liquid level monitoring and water level offside monitoring can be achieved, meanwhile, fault alarm of the drainage pump can be achieved, and the normal working state of the drainage pump is guaranteed.
Owner:CHINESE PEOPLES LIBERATION ARMY UNIT 93204
Method for treating room-pillar type goaf through grouting and fully mechanized coal mining and coal pillar recovery
The invention relates to the technical field of coal mining, in particular to a method for treating a room-and-pillar goaf through grouting and recycling coal pillars through fully mechanized mining, which comprises the following steps: forming a detection directional hole through a directional drilling technology, performing field detection on a distribution area of the room-and-pillar goaf, constructing a three-dimensional space model of the room-and-pillar goaf, and constructing a three-dimensional space model of the room-and-pillar goaf; gradually obtaining the range of the room-and-pillar goaf according to the boundary points of the room-and-pillar goaf detected by the plurality of detection directional holes; based on the range of the room-and-pillar goaf and the internal structure of the room-and-pillar goaf, the arrangement position, number and depth of drainage drill holes are obtained; based on the arrangement position, number and depth of the drainage drill holes, accumulated water in the goaf is introduced into a mine drainage system through a drainage pipe; grouting treatment is conducted on the room-pillar type goaf through the grouting drill holes; and after the working face is arranged according to the working face arrangement scheme, coal pillar recovery operation is carried out according to the formulated mining scheme.
Owner:CCTEG COAL MINING RES INST +1
Coalbed methane horizontal well reformation method based on controllable shock wave
The application discloses a coal bed gas horizontal well yield increasing method based on controllable shock waves, which comprises the following steps: S1, selecting a group of upward directional drilling construction sites in a horizontal well service underground roadway of a mine, and the directional drilling target positions are respectively coal seams opposite to a plurality of positions of a horizontal well perforation point away from the horizontal well; S2, drilling a hole at a target point A meters away, judging whether the hole is in a fracturing influence range and a horizontal well drainage influence range; if the hole target point is in the fracturing influence range, controllable shock wave construction is performed; if the hole target point is not in the fracturing influence range, construction is performed on other target points again until a target point in the fracturing influence range is found and the construction is stopped; S3, drilling and judgment are performed on each horizontal well perforation by using S2 until target points in the fracturing influence range are found for all the horizontal well perforations, and controllable shock wave construction is performed. The application has the beneficial effects of improving the yield of a coal bed gas well, further expanding a seepage channel and prolonging the production life of the coal bed gas well.
Owner:HUAINAN MINING IND GRP +3
Drain board
Owner:BEIJING CHENGJIAN YUANDONG CONSTR INVESTMENT GRP CO +1
Mining underground drainage channel
ActiveCN223215299UDrainageStationary filtering element filtersElectric machineryStructural engineering
The utility model relates to the technical field of mine drainage, in particular to a mining underground drainage channel which comprises a drainage pipe, a mounting frame is arranged outside the drainage pipe, a dredging assembly used for cleaning silt and collecting metallic minerals is arranged in the mounting frame, and a drainage pipe is arranged in the dredging assembly. The dredging assembly comprises a metal sensor arranged on the outer wall of the mounting frame, a conveying pipe is arranged in the mounting frame, a storage box is arranged at the other end of the conveying pipe, a fixing frame is arranged at the top of the mounting frame, a motor is arranged on the outer wall of the fixing frame, a screw rod is arranged at the output end of the motor, and a lantern ring is arranged on the outer wall of the screw rod; and two shifting rods are arranged on the outer wall of the lantern ring. According to the utility model, the silt at the corner of the drainage channel is dredged, the blocking probability is reduced, the silt containing minerals can be collected and stored, the subsequent screening is facilitated, and the mineral loss is reduced.
Owner:GEERMU QINGHUA MINING IND CO LTD
Valve well drainage device
The utility model relates to a valve well drainage device which comprises a pump body and a motor, an impeller assembly is arranged in the pump body, an output shaft of the motor extends into the pump body to be connected with the impeller assembly, the pump body is communicated with a water inlet pipe and a water outlet pipe, and the water inlet pipe is communicated to the bottom of a valve well through a drainage pipe. The filter assembly comprises a V-shaped pipe and a filter screen, the V-shaped pipe is communicated with the water inlet pipe, the filter screen is arranged in the V-shaped pipe, the bottom of the V-shaped pipe is communicated with a discharging pipe, water in the valve well is pumped out through the pump body, manual pumping is not needed, and time and labor are saved; wherein the drain pipe is communicated with the bottom of the channel valve well, when the pump body is used for draining water, large-particle impurities in sewage are filtered through the filter screen, and the large-particle impurities fall into the discharge pipe, so that the pump body is prevented from being blocked by the large-particle impurities; the impeller assembly rotates in the pump body, so that a turbulent flow effect can be achieved on water flow, and the situation that the pump body is blocked due to the fact that sludge is accumulated in the pump body is avoided.
Owner:GUANGZHOU NANSHA XINAO GAS CO LTD
Gas well spiral degassing and sand prevention device
The present application relates to the technical field of oilfield development, and particularly relates to a gas well drainage spiral degassing composite sand prevention device, which comprises a sand prevention oil well pump, a lower oil pipe section connected to the lower end of the sand prevention oil well pump, a special-shaped variable buckle connected to the lower end of the lower oil pipe section, outer and inner connecting parts provided at the upper and lower ends of the special-shaped variable buckle, an outer connecting part at the lower end of the special-shaped variable buckle connected to a sand settling tail pipe assembly, the sand settling tail pipe assembly comprising at least one sand settling pipe and a bottom plug connected to the bottom end, and a central pipe assembly coaxially arranged in the sand settling pipe. The uppermost sand settling pipe is connected to a wire-wound screen pipe with a gap of 0.2 mm, thereby performing the first filtration on the formation water, and the special-shaped variable buckle is connected to a laser slotted sand control screen pipe with a gap of 0.15 mm, thereby performing the second filtration on the formation water, effectively preventing the sand particles with different particle sizes from entering the sand prevention oil well pump, and avoiding the sand sticking of the pump cylinder and the failure of the valve.
Owner:BEIJING WARBURG ENERGY DEV LTD
Gas recovery well drainage device and method in recovery process of water-containing gas reservoir well
The invention provides a drainage device and method for a gas recovery well in the recovery process of a water-containing gas reservoir well. The drainage device comprises a first channel, a second channel and a drainage device, the second channel is used for injecting gas; wherein the first channel is an inner cavity of the oil pipe; the second channel is an inner cavity of the oil-string casing; the first channel and the second channel are communicated and connected; two circulation channels are established on the basis of an original gas production pipe column, a gas lift circulation drainage channel is formed through combination, gas lift drainage of different scales of drainage amounts is achieved according to different working conditions, the well drainage effect is improved, and particularly the technical problem of large-displacement drainage of a horizontal well is economically solved by converting a horizontal gas production well into a drainage well.
Owner:PETROCHINA CO LTD
Electromechanical equipment for automatic drainage of underground coal mine
The utility model belongs to the technical field of underground coal mine drainage, and particularly relates to underground coal mine automatic drainage electromechanical equipment which comprises a water sump, a buffer pool arranged on the upper side of one side of the water sump, a first supporting plate arranged on the upper side of the side, close to the water sump, of the buffer pool, a first pump arranged on the upper side of the first supporting plate, and a liquid pumping pipe arranged at the input end of the first pump. The lower end of the liquid pumping pipe is communicated with a sedimentation pipe, and the sedimentation pipe comprises a pipe main body, a filter head, a coarse mesh plate, a fine mesh plate, a ceramic ball and an end head. The mine sewage is preliminarily filtered by the coarse screen plate of the sedimentation pipe, then is subjected to gravel sedimentation separation when rising in the pipe main body, then is further filtered by the fine screen plate and the ceramic balls, and finally is subjected to sedimentation treatment by the buffer pool, so that most gravel precipitates in the mine sewage can be separated, and a large amount of precipitates are prevented from entering a pipeline when the sewage is sucked and discharged; therefore, pipeline blockage caused by a large amount of sediments is avoided, the cleaning frequency of the pipeline is reduced, and the stability of mine drainage is promoted.
Owner:安徽恒源煤电股份有限公司
Coal mine well field deep coal-bed gas well fracturing and produced water circulation and treatment system
ActiveCN119461740AWater/sewage treatment by centrifugal separationWaste water treatment from quariesWater useWater discharge
The invention relates to a coal mine well field deep coal-bed gas well fracturing and produced water circulation and treatment system which comprises a cyclic utilization unit, an oil removal pool and a biochemical treatment unit, and the cyclic utilization unit comprises a mine water treatment unit and a plurality of well drainage water treatment units which are sequentially connected in series; the mine water treatment unit comprises a standing sedimentation tank and a fracturing water tank which are connected in sequence, mine water discharged from a coal seam roadway is discharged into the standing sedimentation tank, is treated and then is discharged into the fracturing water tank, and the treated mine water can be used as fracturing water of a first coal-bed gas well; the well drainage treatment unit comprises a reverse drainage tank, a standing sedimentation tank and a fracturing water tank which are connected in sequence, and drainage water of the coal-bed gas well is treated by the reverse drainage tank and the standing sedimentation tank in sequence, then is discharged into the fracturing water tank and can be used as fracturing water of the next coal-bed gas well; and a water discharge pipe of the last coal-bed gas well is sequentially connected with a standing sedimentation tank, an oil removal tank and a biochemical treatment unit.
Owner:GENERAL PROSPECTING INSTITUTE OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY +2
Mine drainage device
The present invention relates to the technical field of mine drainage, and specifically discloses a mine drainage device, wherein a shell is provided with a plurality of first holes, a ring member is arranged inside the shell, a plurality of second holes are opened on the outer wall of the ring member, two baffles are rotatably installed on the bottom of the ring member, the drainage pipe is installed on the outer periphery of the ring member, the drainage pipe is spirally arranged, the upper end of the drainage pipe has a straight pipe portion connected with a water pump, a filter plate is obliquely installed in the straight pipe portion, a shell connected with the straight pipe portion is arranged on the side of the straight pipe portion away from the ring member, a collecting member is rotatably installed in the shell, a through hole is opened at the bottom of the shell, the through hole is connected with the inner side of the ring member through a connecting pipe, an impeller is rotatably installed in the straight pipe portion, and an air bag is installed in the ring member. The present invention is conducive to avoiding the filter plate from being blocked, draining the water in the mine as cleanly as possible, and better processing the stones in the water.
Owner:SHANXI FENGQINGHENG ENERGY TECH CO LTD
Coal bed gas horizontal well transformation method based on controllable shock waves
ActiveCN119412007AIncrease productionImprove drilling efficiencyFluid removalDirectional drillingHorizontal wellsMining engineering
The coal bed gas horizontal well yield increasing method based on the controllable shock waves comprises the steps that S1, a set of upward directional drilling construction sites are selected in a horizontal well service mine underground roadway, and the positions of directional drilling target spots are coal beds right opposite to the positions, away from a horizontal well, of horizontal well perforation points; s2, construction drilling is conducted on the position, with the target point being A m, of the target point, and whether the position enters the fracturing influence range or not and is the horizontal well drainage and mining influence range or not is judged; if the drilling target point is located in the fracturing influence range, controllable shock wave construction is conducted; if the drilling target spot is not in the fracturing influence range, construction is carried out on other target spot positions again until the target spot position in the fracturing influence range is found; and S3, for each horizontal well perforation, the step S2 is adopted for construction drilling, judgment is conducted till all the horizontal well perforations find the target spot positions of the fracturing influence range, and controllable shock wave construction is conducted. The method has the beneficial effects that the yield of the coal-bed gas well is increased, a seepage channel is further expanded, and the production life of the coal-bed gas well is prolonged.
Owner:HUAINAN MINING IND GRP +3
Sandy soil engineering seepage control water storage and drainage blanket with bagged sand wells
The utility model discloses a sandy soil engineering seepage control water storage and drainage blanket with bagged sand wells, and belongs to the technical field of novel geosynthetic materials. Comprising a sandy soil engineering seepage control water storage and drainage blanket, a balance weight cage installed below the sandy soil engineering seepage control water storage and drainage blanket, and a funnel-shaped bagged sand well penetrating through the balance weight cage and tightly connected with the sandy soil engineering seepage control water storage and drainage blanket. And the upper part of the funnel-shaped bagged sand well penetrates through the sandy soil engineering seepage control water storage and drainage blanket. When the water head is smaller than the distance that the funnel-shaped bagged sand well is higher than the sandy soil engineering seepage-control water storage and drainage blanket, the sandy soil engineering seepage-control water storage and drainage blanket stores water; otherwise, the funnel-shaped bagged sand well is preferentially used for draining water, meanwhile, the sandy soil engineering seepage control water storage and drainage blanket assists in draining water, and the funnel-shaped bagged sand well guides water into the deeper position of the soil body, so that the rainwater flows into the soil body more naturally, and meanwhile, the influence on the roadbed or the building foundation is reduced.
Owner:CHANGAN UNIV
Mine water and mud discharging method
The invention provides a mine drainage and sludge discharge method, belongs to the technical field of mine pollution discharge, and solves the problems of high safety risk, low efficiency, long cleaning time, high difficulty, incomplete cleaning and continuous reduction of the volumes of a sedimentation tank and a water sump in the existing manual bagging and sludge cleaning. The system comprises sedimentation tanks, a sludge tank, a desliming filter press, water cabins, a vacuum pump and a matched sludge storage tank, sewage sequentially and automatically flows to the four sedimentation tanks, and the sewage continuously flows to the two water cabins after being full of the sewage; the slurry in the sedimentation tank and the water sump is pumped into a cavity of the vacuum slurry storage tank, the slurry in the tank is pressed and conveyed to the sludge tank, and the slurry is conveyed to the desliming filter press for mud-water separation operation. The device used by the invention is good in operation stability, reduces the labor intensity of workers, improves the drainage and sludge discharge efficiency of the mine, and has the characteristic of being capable of adapting to complex working conditions of the mine.
Owner:JINCHUAN GROUP NICKEL COBALT CO LTD
Alternating method, device and equipment for draining pumps of water-collecting well and medium
PendingCN119664648Astart in timeavoid damagePump testingPositive displacement pump componentsEnvironmental engineeringWater well
The invention discloses a water collecting well drainage pump alternation method, device and equipment and a medium. The method comprises the steps that the operation duration of each drainage pump is obtained in real time, the drainage pumps are divided into a plurality of pump sets according to the operation duration, each pump set comprises at least one drainage pump, and the pump starting water level of each pump set is determined; and when the water level of the water collecting well exceeds each pump starting water level, the corresponding pump set is started and timed, the previous pump set is stopped, and the operation duration of the previous pump set is emptied. On the premise that the standby drainage pump is started in time and drainage is conducted in time, equipment damage is avoided.
Owner:THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
Drainage arrangement structure of cable transfer well
ActiveCN222413091UArtificial islandsCable installations in cable chambersStructural engineeringDitch
Owner:POWERCHINA HUADONG ENG CORP LTD