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1730 results about "Water well" patented technology

A well is an excavation or structure created in the ground by digging, driving, or drilling to access liquid resources, usually water. The oldest and most common kind of well is a water well, to access groundwater in underground aquifers. The well water is drawn up by a pump, or using containers, such as buckets, that are raised mechanically or by hand. Water can also be injected back into the aquifer through the well. Wells were first constructed at least eight thousand years ago and historically vary in construction from a simple scoop in the sediment of a dry watercourse to the qanats of Iran, and the stepwells and sakiehs of India. Placing a lining in the well shaft helps create stability, and linings of wood or wickerwork date back at least as far as the Iron Age.

Deepwater drilling overflow early warning device and method

The invention discloses a deepwater well drilling overflow early warning device and method, and relates to the technical field of petroleum engineering, the deepwater well drilling overflow early warning device comprises a data acquisition module, an environment compensation module, a data processing module, a data processing module and a data processing module, the data acquisition module is used for acquiring data during well drilling, and the data comprises underground bottom hole pressure, temperature, acoustic logging data, gamma logging data, underwater gas content data and overwater well fluid flow data; the environment monitoring module is used for monitoring environment changes and dynamically correcting data acquired by the data acquisition module by applying a real-time correction algorithm based on a neural network, and the data processing and analyzing module is used for cleaning the data of the data acquisition module, extracting features and transmitting the features to the early warning system module. Accurate environment data are obtained through the environment compensation module, the data are processed through a real-time correction algorithm, the influence of external interference such as water flow fluctuation and temperature change on sensor reading can be eliminated, and therefore the accuracy and reliability of the data are improved.
Owner:SANYA MARINE OIL & GAS RESEARCH INSTITUTE NORTHEAST PETROLEUM UNIVERSITY

Underground gas storage device for compressed air energy storage and construction method therefor

Disclosed in the present invention are an underground gas storage device for compressed air energy storage and a construction method therefor. The underground gas storage device for compressed air energy storage comprises an underground gas storage cavern, the underground gas storage cavern being formed of a plurality of underground gas storage cavern sections, wherein a connecting tunnel is provided between two non-adjacent underground gas storage cavern sections, a vertical shaft is provided at the top end of the connecting tunnel, and a sealing plug is provided in the intersection between the vertical shaft and the connecting tunnel; a gas intake pipeline and a gas output pipeline are provided in the vertical shaft, and a sump is provided on an outer bottom wall of the connecting tunnel; a first drainage ditch is provided around the top face edge of the sealing plug in the vertical shaft, and the first drainage ditch is in communication with the sump; and a drainage blind pipe assembly is provided on the periphery of the underground gas storage cavern sections, and the drainage blind pipe assembly is in communication with the sump via a second drainage ditch arranged at the outer bottom wall of the connecting tunnel. The present invention can achieve one-time excavation forming, without transformation and with relatively low construction difficulty, and can effectively reduce the influence of underground water on the underground gas storage cavern during a construction period, operation period and maintenance period.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

Intelligent control system and method for mine water underground treatment, medium and electronic equipment

The invention relates to an intelligent control system and method for mine water underground treatment, a medium and electronic equipment.The system comprises a water quality online monitoring module, an automatic control module, an intelligent chemical adding module and a calibration optimization module, and the system responds to mine water quality changes in real time based on mine water quality online monitoring data and a chemical adding prediction model; the agent adding strategy is dynamically adjusted, accurate agent adding is achieved, the mine water underground treatment effect is effectively improved, the operation and maintenance cost of an underground treatment system is reduced, and the reliability is improved. The control system disclosed by the invention has relatively high automation and intelligence levels, can adapt to complex water quality conditions and large-scale mine water treatment requirements, provides an efficient, economic and environment-friendly solution for mine area water resource management, and has a wide application prospect.
Owner:NAT INST OF CLEAN AND LOW CARBON ENERGY +1

Method for constructing twin management and control system of urban drainage unit based on Al

The invention provides a method for constructing an urban drainage unit twin system based on an AI data analysis technology. The drainage unit twin system is composed of an online monitoring device, a network communication system and a remote monitoring platform. The NBIOT or OneNET technology is adopted to carry out networking on the online monitoring device, so that online accurate data acquisition and real-time transmission of a drainage unit pipe network catchment point, a drainage port and a rainfall station intelligent terminal carrying lightweight model are realized; and the remote monitoring platform is combined with an unreal engine technology to truly reflect a 3D real scene of the drainage unit. The intelligent monitoring system has a plurality of data monitoring functions such as rainfall, underground liquid level, flow velocity and flow, water quality, pavement ponding and well lid abnormity alarm monitoring, and provides a comprehensive data source for a drainage unit twin system. The AI technology is used for comprehensively mastering the condition of a drainage system, and visual monitoring of pavement ponding and waterlogging in the urban drainage unit and intelligent monitoring of a drainage pipe network are achieved.
Owner:SHANGHAI ZHONGJING HANDING DIGITAL TECH CO LTD

Seawater cooling control system and method

The invention provides a seawater cooling control system and method which are applied to the technical field of ocean engineering, and the seawater cooling control system comprises a cooling water well, a first temperature sensor, a water level gauge, a water suction pump, a water delivery pump, a monitoring buoy, a second temperature sensor, a flow meter and a controller. The first temperature sensor and the second temperature sensor monitor the temperature in the well and the coral reef area and the water flow speed of the flow velocity metering area respectively, the water level gauge ensures that the water volume in the well is stable, and data are analyzed in real time through the controller to generate a control instruction. The difference value between the environment temperature and the whitening threshold value, the cooling water temperature in the well and the coral reef flow speed serve as input variables, the flow requirement of the water delivery pump is dynamically calculated through a preset rule base, and self-adaptive adjustment is achieved. Through cooperative feedback of the double temperature sensors, it is ensured that the water delivery temperature is strictly controlled within a coral tolerance threshold value, and heat stress whitening is avoided. Layered water taking is combined with a fuzzy control algorithm, energy consumption is reduced compared with a traditional deepwater extraction scheme, and negative effects of shading measures on zooxanthellae are avoided.
Owner:HAINAN RES INST OF ZHEJIANG UNIV

Building foundation construction method under complex geological conditions

The invention relates to the technical field of foundation construction, and provides a building foundation construction method under complex geological conditions. The method comprises the following steps: S1, sampling and detecting land by using equipment, and comprehensively analyzing soil layer, underground water level and geological risk; s2, a foundation pit geometrical shape and a supporting scheme are designed according to an exploration result, and construction safety is ensured; s3, an underground descending well is set up to lower the underground water level of the construction area; s4, a deep mixing pile is adopted for foundation reinforcement, and the bearing capacity of a soil body is improved; s5, the soil body is improved, and the soil strength and stability are improved; and S6, the foundation pit is monitored in real time, and the displacement, the underground water level and the soil pressure of the foundation pit are monitored. By adopting an advanced geological detection technology, the properties of underground soil and rocks can be accurately evaluated before construction, and the measure can find potential geological hidden dangers in time, so that corresponding safety measures are formulated, the risk in the construction process is reduced, and the safety of constructors is ensured.
Owner:中交苏南(无锡)城市建设有限公司

Oil-water well acidification continuous construction electric control system based on multi-parameter monitoring

InactiveCN120506211ASurveyConstructionsAcid etchingFuzzy sliding mode control
The invention discloses an oil-water well acidification continuous construction electric control system based on multi-parameter monitoring, and relates to the technical field related to acidification control in oil-gas field development, and the system comprises a multi-source data fusion monitoring module which integrates wellhead pressure, temperature, flow, pH value, H2S concentration and acid liquid conductivity, and an underground microwave imaging sensor carries out multi-physical quantity collection; a multi-objective optimization controller is designed, and the acid etching depth, the crack flow conductivity and the construction cost are balanced; the self-adaptive construction control module is based on a variable-frequency and variable-speed acid pump system controlled by a fuzzy sliding mode and is used for realizing stepless regulation of displacement; an intelligent shunting system is arranged, and acid liquor distribution is dynamically adjusted according to the suction volume of each layer section. According to the variable-frequency acid pump system based on fuzzy sliding mode control, stepless adjustment of the displacement is achieved; the intelligent flow distribution system dynamically prepares liquid according to the suction volume of each layer section; and through a three-stage safety interlocking mechanism, power can be cut off and emergency acid discharge can be started within 0.5 second when the temperature rise is greater than or the pressure suddenly changes, so that the well control risk is reduced.
Owner:XIAN CHANGZE PETROCHEMICAL TECH CO LTD

Oil-water well liquid production profile recognition and inversion method, system and program product

The invention discloses an oil-water well liquid production profile identification and inversion method, system and program product, relates to the technical field of oil-gas field development, and solves the problems that in an existing liquid production profile monitoring method based on DAS and DTS technologies, DAS signals are prone to being interfered by fluid flow, the signal quality is poor, liquid point information cannot be accurately reflected, and the reliability is poor. The problems that liquid production profile information of DTS signal inversion lacks enough spatial constraint conditions, and the inversion result is large in deviation are solved. According to the method, the local liquid production characteristics in the DAS signals are extracted through blind source separation, the liquid outlet point positions are effectively recognized in combination with a statistical screening method, the recognized liquid outlet point positions serve as constraint conditions to be introduced into the DTS inversion process, and the precision and stability of the inversion result are effectively improved; the method not only overcomes the limitation of a traditional F-K spectral analysis method in an oil-water well environment, but also can introduce effective spatial constraints in DTS inversion, significantly reduces inversion errors, and improves the interpretation precision of a liquid production profile.
Owner:CHENGDU NORTH OIL EXPLORATION DEV TECH

End-to-end oil reservoir history fitting method based on flow matching

The invention discloses an end-to-end oil reservoir history fitting method based on flow matching, which belongs to the field of petroleum engineering, and comprises the following steps: step 1, collecting and sorting oil reservoir geological parameters and oil-water well production dynamic data, constructing a data set, and carrying out data preprocessing; step 2, constructing a flow matching infrastructure; step 3, constructing an improved U-shaped network for flow matching velocity field prediction; 4, constructing an ordinary differential equation solver to realize data generation; and 5, integrating and packaging the flow matching infrastructure, improving the U-shaped network and an ordinary differential equation solver to obtain a complete flow matching model, and realizing end-to-end dynamic history fitting of the oil reservoir. And directly inputting a production dynamic condition by utilizing the trained end-to-end flow matching model to generate an oil reservoir parameter field sample conforming to the condition. In the process, additional intermediate link conversion is not needed, and dynamic matching and accurate parameter adjustment of the oil reservoir model can be achieved.
Owner:QINGDAO UNIV OF TECH

Milling and Collecting Debris in Depleted or Sub-Hydrostatic Wells

An approach to milling obstructions in sub-hydrostatic wells uses a bottom hole assembly. The bottom hole assembly includes a tool to collect debris downhole and then mechanically, rather than hydraulically, transport the debris to the surface after milling.
Owner:SAUDI ARABIAN OIL CO

Gravity satellite groundwater storage variable vertical signal separation method based on physical model

The invention discloses a gravity satellite groundwater storage variable vertical signal separation method based on a physical model, and the method comprises the steps: S1, building a physical response model of ground surface deformation and gravity change and groundwater storage variables, and enabling the physical response model to comprise a ground surface deformation response model and a gravity change response model; the method specifically comprises the following steps: step S2, constructing a gravity satellite and InSAR data joint inversion framework, and establishing an observation equation set; s3, regularization constraint conditions are introduced, and a weighted least square method is adopted for solving; and S4, carrying out groundwater reserve vertical separation and verification based on a mass conservation principle. The method overcomes the defect that an existing method depends on dense well observation data, fine monitoring of groundwater storage variables is achieved through physical model constraints, and the method can be widely applied to regional groundwater resource monitoring and management.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Interwell connectivity quantification and analysis method and device

The invention discloses an inter-well connectivity quantification and analysis method and device, and relates to the technical field of water drive development, and the method comprises the steps: carrying out the interlayer division of an original model, and determining the distribution information of a water injection well and a producing well; an oil reservoir is divided into a plurality of grid units through a geometric segmentation method, and it is ensured that the water injection wells and the oil production wells are located in the grid units. And dividing a control area for each well by using a division rule, and determining the affiliation of the grid units through Euclidean distance comparison. And obtaining the conductivity between two adjacent grid units divided by the control boundary. And respectively evaluating the production and water injection capacities of the well by using the production index and the water injection index. And based on a finite volume method, constructing a mass conservation equation for the grid units, and carrying out iterative solution until convergence. And traversing the conductivity connectivity table to calculate a flow component, accumulating to obtain a total flow, deducing an inter-well connectivity coefficient according to the total flow, and realizing quantitative evaluation of the inter-well connectivity coefficient. The problems of how to optimize the injection-production well pattern design and how to improve the water drive development effect and the oil reservoir recovery efficiency are solved.
Owner:XI'AN PETROLEUM UNIVERSITY

Foundation pit dewatering system and foundation pit dewatering arrangement method

The invention relates to the technical field of foundation pit construction, in particular to a foundation pit dewatering system and a foundation pit dewatering arrangement method.The foundation pit dewatering system comprises a first-stage platform, a second-stage platform and a third-stage platform which are arranged around a foundation pit, and the elevations of the first-stage platform, the second-stage platform and the third-stage platform are sequentially decreased; a plurality of first dewatering deep wells are arranged on the first-stage platform, a plurality of second dewatering deep wells are arranged on the second-stage platform, and a plurality of third dewatering deep wells are arranged on the third-stage platform; drainage ditches and / or water collecting wells are dug in the base of the foundation pit; digging a drainage channel at the top of the foundation pit; sewage in the first precipitation deep well, the second precipitation deep well, the third precipitation deep well, the drainage ditch and / or the water collecting well is discharged into the drainage channel and discharged into the sea through the drainage channel. According to the foundation pit dewatering system, through scientific arrangement of the graded dewatering deep wells and efficient cooperation of drainage facilities, the limitation of a traditional dewatering technology under the tidal influence and complex geological conditions is overcome, the construction safety, reliability and efficiency are improved, and the stability of a foundation pit is enhanced.
Owner:CCCC FOURTH HARBOR ENG CO LTD +2

Offshore oilfield subsection water injection parameter design method based on communication unit delimitation

An offshore oilfield segmented water injection parameter design method based on communication unit demarcation comprises the specific steps that S1, an offshore loose sandstone longitudinal multilayer oil reservoir inter-well connectivity model is constructed, an inter-well communication network is constructed, and the bottom hole pressure of each well and the water content of each sand prevention section are calculated; matching the production dynamics calculated by the model with the actual historical production dynamics by optimizing the characteristic parameters, realizing the inversion solution of the model parameters, and determining a historical fitting objective function suitable for the connected model; and S2, determining a water injection splitting coefficient, water injection efficiency and a fluid channeling index of each layer of water injection well of the oil reservoir according to the inter-well connectivity model of the offshore loose sandstone longitudinal multi-layer oil reservoir constructed in the S1. Aiming at the problem that a production well of the offshore loose sandstone reservoir is easy to generate water channeling or water logging and the like, in combination with a real-time production allocation and injection allocation production algorithm, accurate inversion of the connectivity model and real-time prediction of the production dynamics of an oil-water well are realized according to geological characteristics, development dynamics and construction of the connectivity model of the offshore loose sandstone reservoir.
Owner:CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1

Rainwater rapid drainage device for urban inland inundation

The invention discloses a rapid rainwater drainage device for urban inland inundation. The rapid rainwater drainage device comprises a self-elastic ejector rod and a floating ball locking mechanism. The self-elastic ejector rod is fixedly connected with the rainwater grate, and a transverse locking rod is arranged on the self-elastic ejector rod; the floating ball locking mechanism is arranged in the water falling well, and the floating ball locking mechanism comprises a one-way lock tongue associated with the transverse lock rod; when the one-way lock tongue locks the transverse lock rod, the rainwater grate covers the well mouth of the water falling well in a sealing mode, and when the one-way lock tongue is separated from the transverse lock rod, the self-elastic ejector rod jacks the rainwater grate upwards, and the well mouth of the water falling well is opened. The drainage device is ingenious in structure, convenient to use and low in maintenance cost, the grate plate is automatically controlled to ascend and descend through a full-mechanical mechanism, and therefore rapid and large-amount drainage of the sewer in the rainstorm period is achieved; the grate plate is always kept in a horizontal state and ascends and descends in the vertical direction, so that the water outlet is effectively prevented from being exposed, and the safety of road passing is improved.
Owner:YELLOW RIVER ENG CONSULTING CO LTD

Pipe grabbing system for building water well vertical pipe construction

The invention discloses a pipe grabbing system for building water well vertical pipe construction, and relates to the technical field of building mechanical and electrical installation, the pipe grabbing system comprises a pipe grabbing mechanism, a rotating disc, a lifting rod, a base, a visual module and a controller; the controller is configured to acquire image data fed back by the visual module if pipe grabbing demand information initiated by a user is received, and perform pipeline identification based on the image data to obtain pipe diameter data of a pipeline; a pipe grabbing control quantity is generated based on the pipe diameter data, a pipe grabbing control instruction is sent to a pipe grabbing mechanism according to the pipe grabbing control quantity, a rotating mechanism is controlled to lift the pipeline away from the ground, and a rotating disc is controlled to rotate; and calling the image data, determining a pipeline mounting position, generating a pipeline height movement amount and a pipeline positioning movement amount, sending a pipeline height control instruction to the lifting rod according to the pipeline height movement amount, and sending a pipeline positioning control instruction to the rotating mechanism according to the pipeline positioning movement amount. The construction method has the effect of improving the construction efficiency.
Owner:CHINA CONSTR EIGHTH BUREAU SOUTH CHINA CONSTR CO LTD

Method for predicting and controlling water injection pressure rise of water injection well

The invention provides a method for predicting and controlling water injection pressure rise of a water injection well, which comprises the following steps of: 1, collecting data of the water injection well according to different characteristics of each stage of water injection development of an oil reservoir; 2, according to the water injection well data, water injection well dynamic analysis is conducted; 3, establishing a water injection well water injection pressure rise prediction model according to oil reservoir factors by taking the water injection pressure as response and the factors influencing the water injection pressure rise as variables; and 4, according to the water injection well water injection pressure rise prediction model, a water injection well pressure rise control method is formulated. According to the water injection well water injection pressure rise prediction and control method, the prediction model is established, the water injection well pressure rise trend is predicted according to the model, a targeted control method is formulated, advanced early warning is achieved, effective water injection is guaranteed, and the purposes of more water injection and good water injection are achieved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Rainwater and wastewater recycling system for construction site

The invention provides a rainwater and wastewater recycling system for a construction site, and relates to the technical field of rainwater collection, the rainwater and wastewater recycling system comprises an underground water well, a water collecting tank is arranged at the upper end of the underground water well, a center shaft is installed at the circle center of the underground water well, and the water collecting tank is rotatably installed on the surface of the center shaft through a bearing; an unfolding assembly is arranged at the top of the water collecting tank, the water spraying rods can be unfolded and folded through the unfolding assembly, in the unfolding state, the plastic cloth between the two water spraying rods can be unfolded to form an umbrella-shaped structure, and rainwater flows into the water collecting tank through the surfaces of the different plastic cloth; impurities and soil in rainwater are filtered in the space formed by the interlayers in the water collecting tank, then the rainwater is collected by the underground water well, when the water spraying rod is folded, the rainwater collected in the underground water well can serve as dust falling spraying water to be conveyed to the water spraying rod, rainwater collection and recycling are achieved, and the device is convenient to install and suitable for a construction site.
Owner:HUBEI IND CONSTR GRP

Foundation pit dewatering device

The utility model relates to the technical field of foundation pit dewatering, and discloses a foundation pit dewatering device which comprises a water collecting well arranged at the bottom of a foundation pit body. The dewatering mechanism is arranged in the water collecting well and is matched with the filter material layer laid in the water collecting well; the dewatering mechanism is arranged, a first filter cartridge and a second filter cartridge are matched to filter sludge in a water collecting well, the dewatering effect of the device is improved, a mounting block drives a cleaning rod to clean sludge and impurities on the outer wall of the second filter cartridge and the inner wall of the first filter cartridge, water flow can be rapidly discharged, and the dewatering effect of the device is improved. A cleaning plate and a compression spring are matched to clean impurities blocked on the first filter cartridge, a motor drives two gears to be matched to enable a cleaning rod to rotate to clean the filter cartridge, and sludge and impurities blocked on the filter cartridge can be cleaned; the problem that according to an existing foundation pit dewatering device, sludge on a filter cartridge is inconvenient to clean is solved.
Owner:NORTH ENG OF THE ELECTRIFICATION BUREAU GROUP CRCC

Settling funnel hydraulic gradient driven water replenishing ore dissolving salt lake brine mining method and system

The invention discloses a salt lake brine mining method and system for hydraulically gradient-driven water replenishing and ore dissolving of a sedimentation funnel, and relates to the technical field of salt lake mineral resource development, the method comprises the following steps: S1, collecting water level data of a sedimentation funnel area, calculating gradient distribution, dividing functional areas, and generating zoning parameters; s2, based on the partition parameters, a water injection well network is arranged in the gradient direction, water injection parameters are determined according to the water level difference, and a well network scheme is generated; s3, based on a well pattern scheme, injecting the proportioning solvent into an ore bed in a layered manner to form a directional seepage field, and generating solute transport data; s4, on the basis of solute transport data, enriched brine is extracted in the collection area, the concentration is monitored, and brine parameters are generated; and S5, based on the deviation between the brine parameter and the target value, calculating the regulation amount, adjusting the injection-production parameter to maintain dynamic balance, and outputting the salt lake brine with the target concentration. By regulating and controlling the hydraulic gradient, the form of the settlement funnel is stabilized, the phenomena of stratum disturbance and ground settlement are reduced, and the ecological risk is reduced.
Owner:QINGHAI CITIC GUOAN SCI & TECH DEV CO LTD

Airport area underground water and surface water system coupling seepage regulation and control method and system

The invention discloses an airport area underground water and surface water system coupling seepage regulation and control method and system, and the method comprises the steps: employing a multi-source data fusion investigation mode to find out regional stratum and structure characteristics, and determining an underground water occurrence migration rule and a surface water and underground water supplement and drainage relation; constructing a coupling seepage model of the underground water and the surface water system under the current condition by applying a numerical simulation method, and defining a dynamic association mechanism of the underground water and the surface water system in time and space; based on a simulation result, determining a transformation scheme that a main stream adopts a double-hole box culvert and a branch stream adopts a single-hole box culvert, and arranging an electric gate at the box culvert; arranging monitoring points of groundwater level, pore water pressure and surface water system flow in combination with field spring water and well distribution, and constructing a cooperative monitoring network; the coupling seepage law of underground water and surface water systems is analyzed based on monitoring data, and the opening degree of a box culvert electric gate is dynamically adjusted to control rising of the underground water level in the flood period. The stability of a water system in an airport area is ensured.
Owner:SHANGHAI CIVIL AVIATION NEW ERA AIRPORT DESIGN & RES INST CO LTD

Green land rainwater utilization management system for sponge city landscape

The utility model discloses a green land rainwater utilization management system for sponge city landscape, and belongs to the technical field of rainwater collection and utilization, the green land rainwater utilization management system comprises a foundation and a permeable layer, a water storage well is arranged in the foundation, a water guide pipe is arranged between the water storage well and the permeable layer, and a limiting plate is arranged in the water storage well. The lower end of the limiting plate is fixedly connected with a placing plate through a fixing rod, the lower end of the placing plate is fixedly provided with a connecting rod, the lower end of the connecting rod is fixedly provided with a collecting barrel, the outer surface of the connecting rod is rotatably connected with a well wall cleaning unit, and the well wall cleaning unit comprises a lantern ring. Rainwater collected by the permeable layer is stored in the water storage well through the arranged water guide pipe to be reused, after the water storage well is used for a long time, moss and other attachments can be generated on the well wall, the well wall is cleaned through the arranged well wall cleaning unit, manpower does not need to enter the water storage well, and the water storage well can be cleaned through the well wall cleaning unit. And the whole cleaning process is simple and quick.
Owner:SHENZHEN JINGPENG CONSTR ENG CO LTD

Twin-well brine mining device capable of increasing salt mine brine ore content and multi-well series connection method of twin-well brine mining device

The invention relates to the technical field of well mine salt mining, in particular to a twin-well brine mining device capable of increasing salt mine brine content and a multi-well series connection method thereof, the device comprises a newly-built well unit, a single-well convection brine mining process is set, and the newly-built well unit comprises a water injection well and a brine mining well; the old well unit adopts a twin-well convection brine extraction process and comprises a water injection well and a brine extraction well; the pipeline connecting system is used for communicating the brine extraction well of the newly-built well unit with the water injection well of the old well unit; the flow adjusting device is arranged on the pipeline connecting system and used for adjusting the flow in the pipeline; the central control system is used for monitoring and adjusting operation parameters of each well group; by establishing a series system between the newly-built well and the old well, graded utilization and circulation optimization of brine resources are achieved, a traditional independently-operated well group is converted into an organic whole for cooperative production, low-concentration brine generated during the groove building period of the newly-built well can be secondarily utilized by the old well, and therefore the utilization rate of the resources is remarkably increased.
Owner:HUNAN XIANGHENG SALT CHEM

Fluorine ion monitoring device applied to pasturing area water quality

The invention relates to the technical field of water quality monitoring, in particular to a fluorine ion monitoring device applied to pasturing area water quality. The existing equipment is difficult to clean floccules on a filter screen, so that the filter screen is not good enough in filtering effect on well water, the accuracy of a detection result of a detector on fluorine ions in the well water is reduced, and the detector is difficult to accurately detect underground water at various depths due to the fact that the water levels of the well water are different at different times. A fluorine ion monitoring device applied to water quality in a pasturing area comprises a mounting frame, a protective shell and the like, a protective shell is fixedly connected to the top of the mounting frame. Bristles of the cleaning frame can clean the filter plate; the extrusion block moves upwards to discharge the well water in the detection rod, and the discharged well water backflushes the filter plate, so that the filter plate is cleaner, the clean filter plate can better purify the well water, and the detection accuracy of the detector on the well water is further improved.
Owner:INST OF WATER RESOURCES FOR PASTERAL AREA MINIST OF WATER RESOURCES P R C

Trajectory-controllable radial horizontal well drilling process

The invention discloses a track-controllable radial horizontal well drilling process, and relates to the field of drilling technologies and oil and gas exploitation. According to the technology, in the horizontal drilling operation process, tools needed for track control mainly comprise a steering tool and an orientation tool, in the horizontal drilling operation process, the two tools are matched and cooperatively work, precise control and adjustment of the well track are achieved, and the drilling task of the radial horizontal well can be efficiently completed. A track-controllable radial horizontal well drilling process mainly comprises the steps of borehole preparation, steering tool sitting hanging and positioning, casing windowing, directional deflecting, horizontal drilling and multi-branch horizontal well drilling, and multi-branch radial horizontal wells with different depths can be achieved through the complete process. Aiming at resources of small marginal oil reservoirs, fault block oil reservoirs, thin oil reservoirs, low-permeability oil reservoirs and the like with different depths, the oil drainage radius is greatly increased, the production capacity of oil and gas wells and the water injection efficiency of water injection wells are improved, and the method is economical, efficient and safe and is an effective means for old well transformation of oil fields, potential tapping of the oil reservoirs and stable production and yield increase.
Owner:SOUTHWEST PETROLEUM UNIV

Brine well wall anti-collapse structure and construction method and application thereof

The invention discloses a brine well wall anti-collapse structure and a construction method and application thereof. The brine well wall anti-collapse structure comprises a supporting disc cavity, a grouting blocking device and a supporting disc pouring body. The grouting blocker is a soft bag and is filled with a first grouting material so as to expand and block the opening of the cavity of the supporting disc; and the branch plate pouring body is formed by injecting second grouting material into the branch plate cavity, and is used for filling the branch plate cavity and plugging a gap between the grouting barrier device and the branch plate cavity. According to the invention, a composite grouting process system of branch plate grouting and high-pressure jet grouting is innovatively developed; a supporting disc structure is formed in a sand layer through expansion and extrusion, then an anti-seepage grouting material is injected through a grouting blocking device to form a sand prevention supporting layer, then a gap between a supporting disc and the grouting blocking device is recharged and solidified through a high-pressure rotary jet grouting technology, and finally a well wall overall reinforcing body formed by mutually meshing and connecting the grouting blocking device and the supporting disc structure is constructed. The problems that an existing brine well faces fine sand silting wells, soft soil layer frameworks are dissolved and collapsed and the like are solved.
Owner:QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI +2

A bank slope water purification wetland structure combined with ecological revetment

The present invention discloses a bank slope water purification wetland structure combined with an ecological revetment, comprising: a permeable ecological revetment constructed on a river bank slope; a water distribution ditch constructed on the river bank slope and located at the top of the permeable ecological revetment; a water collection well constructed on the river bank slope and located at the top of the permeable ecological revetment and located on one side of the water distribution ditch; a water pump lifting system, the lifting system is used to transport the water in the river to the water collection well; a permeable steel concrete bottom protection constructed at the bottom of the river bank slope and located at the bottom of the permeable ecological revetment; a shore wetland constructed at the river bank and located on the water side of the permeable steel concrete bottom protection; and a diversion dike constructed on the river bank and located on the water side of the shore wetland. The present invention can improve the survival rate of ecological revetment vegetation and improve the water quality of the river, and is also conducive to improving the biodiversity of the river bank zone.
Owner:SHANGHAI WATER ENG DESIGN & RES INST

Block basement bottom plate drainage structure and construction method thereof

The invention belongs to the field of civil construction and traffic engineering, and particularly relates to a partitioned basement bottom plate drainage structure and a construction method thereof.The partitioned basement bottom plate drainage structure comprises a supporting structure and a plurality of partitioned bottom plates arranged at intervals, and a gap between every two adjacent partitioned bottom plates forms a structural joint; a plurality of cast-in-place piles extending in the stratum direction are arranged below the block bottom plate, drainage holes penetrating in the axial direction are formed in the cast-in-place piles, drainage pipes are arranged between the block bottom plate and the cast-in-place piles, and drainage branch pipes inserted into the drainage holes are arranged on the drainage pipes; a drainage ditch is arranged below each structural joint and connected to a water collecting well. By arranging the structural joints and the drainage ditches, the whole bottom plate is divided into the multiple block bottom plates, the block bottom plates have the effects of reducing internal force of the whole bottom plate and reducing mass concrete pouring hydration heat, water buoyancy of the block bottom plates is released through drainage of the drainage ditches, and the underground water level is controlled to be below the block bottom plates; and the anti-floating safety of the building is ensured.
Owner:GUANGZHOU INSTITUTE OF BUILDING SCIENCE CO LTD

Canned pump-based closed injection-production alternation tubular column and immovable tubular column-based injection-production alternation method

The invention discloses a closed injection-production alternation tubular column based on a canned pump and an injection-production alternation method based on a fixed tubular column. The closed injection-production alternating tubular column based on the canned pump comprises an oil pipe, a perforated pipe connected to the end of the oil pipe, and a positioning steering flow dividing device, an axial switch control valve, a radial switch control valve, the canned pump and a water injection sliding sleeve which are sequentially connected in the axial direction of the oil pipe. In the shaft, the perforated pipe is located in a water injection layer, and the positioning, steering and shunting device is located above a water source layer; the positioning, steering and shunting device comprises a water sampling channel and a water injection channel which are isolated from each other, and the water sampling channel is located on the periphery of the water injection channel. Switching among different production modes of a water injection well, a production well and a water source well can be achieved through one pipe column, immovable pipe column alternation can be conducted at any time according to oil reservoir requirements, the operation cost is saved, and the adjustment operation efficiency of injection and production wells of offshore oilfields is improved.
Owner:SHENZHEN BRANCH CHINA NAT OFFSHORE OIL CORP

Underground water distribution detection and drainage scheme design method

The invention discloses an underground water distribution detection and drainage scheme design method, which comprises the following steps: S1, carrying out a water lifting test, preliminarily judging the water inflow of underground water in a landslide area, and determining underground water distribution in the landslide area by utilizing a landslide section layout object detection line determined by drilling; s2, according to the landslide area underground water distribution condition determined by the water lifting test and the object detection line, a hydrological test drill hole is designed; s3, a hydrological test is carried out through the hydrological test drill hole, and the underground water type and hydrogeological parameters in the landslide area are quantitatively obtained; and S4, in combination with underground water distribution and hydrogeological parameters in the landslide area, designing a layout scheme of a water collecting well and a dewatering well in a drainage project. According to the groundwater distribution detection and drainage scheme design method, blind arrangement of drainage measures is avoided, the accuracy of groundwater evaluation and the pertinence of a treatment project are effectively improved, and an effective basis is provided for exploring groundwater distribution in a landslide area and subsequent treatment projects.
Owner:GUANGDONG PROVINCIAL GOVERNMENT LOAN REPAYMENT EXPRESSWAY MANAGEMENT CENT +3