33 results about "Groundwater quality" patented technology

The embodiment of the invention discloses a water resource quality detection method and device applied to a water diversion project and electronic equipment. A specific implementation mode of the method comprises the following steps: performing water quality detection on a water area where a water diversion project is located to obtain an earth surface water quality data set and an underground water quality data set; constructing an earth surface data structure network according to a pre-constructed water area simulation model and an earth surface water quality data set; constructing an underground data structure network; performing water pollution detection on the water area to generate an earth surface water quality detection result set and an underground water quality detection result set; performing correlation analysis on the surface water resources and the underground water resources of the water area to generate water pollution correlation characteristics; determining a surface water pollution area and an underground water pollution area of the water area; and determining the surface water quality detection result set, the underground water quality detection result set, the surface water pollution area, the underground water pollution area and the water pollution correlation characteristics as water resource quality detection results. According to the embodiment, the accuracy of the water area overall quality detection result can be improved.

The invention relates to the technical field of underground water sampling, in particular to an underground water quality monitoring and sampling device which comprises a sampling box, a buoyancy component is fixedly mounted on the lower side of the sampling box, a sampling shell is fixedly mounted on the lower side of the buoyancy component, and a sampling component is rotatably mounted on the upper side of the sampling shell. An anti-turbulent flow assembly is fixedly mounted on the lower side of the sampling shell; the worm drives the worm gear to rotate, the worm gear drives the driving rod to rotate, the driving rod drives the driving gear to rotate, the driving gear drives one of the connecting gears to rotate, and therefore the multiple sets of connecting gears are driven to perform linkage movement; the six anti-spoiler plates are driven to move and are parallel to one another, large-particle sediments which do not participate in detection at the bottom of the sampling well are separated, then sampling water is sucked into the sampling well through the one-way suction nozzle, and the situation that the sampling water is mixed and polluted due to turbulent flow generated in the suction process is prevented.

The invention discloses an underground water multi-pollutant rapid prediction and diagnosis system, which comprises a multi-parameter sensing and data acquisition module used for acquiring underground water quality parameters in real time; the edge pretreatment unit is used for carrying out edge pretreatment on the underground water quality parameters; the off-line synthetic data engine is used for generating synthetic training data of transient extreme working conditions; the feature engineering processing unit is used for constructing interaction features based on a geochemical mechanism; the AutoML reasoning unit is used for deducing and outputting a pollutant concentration predicted value through a model; and the physical-data dual-drive fault diagnosis module is used for diagnosing the authenticity of pollution according to three-dimensional calculation results of the physical residual calculated by the physical residual calculation unit, the mean square error of the sensor data calculated by the data reconstruction error unit and the difference between the observed value and the predicted value calculated by the statistical test unit. And judging whether to give an alarm according to the diagnosis result. According to the scheme, the specific pollutants can be accurately identified, and the authenticity of pollution can be accurately identified.

The invention discloses a water quality evolution intelligent analysis system suitable for groundwater investigation, and particularly relates to the technical field of groundwater environment evolution analysis, organizing and calling behavior monitoring of a multi-strategy prediction model is realized based on a model pool construction module, and whether the model is in a gaming polarization state is judged by combining a polarization identification module; the dynamic weight adjusting module is used for adjusting the model participation weight, the entropy constraint module is introduced for inhibiting the weight representation imbalance, the error correction module is used for dynamically feeding back and correcting the prediction error, and the path memory module is used for realizing the storage and reuse of the regulation and control strategy in the polarization state; according to the method, dynamic identification and weight adjustment control of model behavior polarization are realized by constructing a multi-strategy model pool and a polarization identification mechanism, the evolution stability of the system is guaranteed by combining entropy constraint and an error correction mechanism, and the response intelligence and the strategy reuse capability are improved by introducing a path memory module. Therefore, the accuracy, the stability and the self-adaptive capability of the groundwater quality evolution analysis are enhanced.

The invention relates to the technical field of risk modeling, in particular to an intelligent risk management and control method and system for underground water pollution, and the method comprises the steps: collecting underground water quality data, and carrying out the preprocessing of the underground water quality data; based on the preprocessed underground water quality data, pollution state feature vectors reflecting pollutant concentration changes and spatial distribution features are extracted, and an underground water pollution time-space correlation model is constructed; wherein in the process of extracting the pollution state feature vector, a weighted space and time adjacent point interpolation method is used for compensating the pollution state feature vector, and a compensated pollution state feature vector is generated; and identifying the current groundwater pollution degree by using the compensated pollution state feature vector and the groundwater pollution time-space correlation model. According to the invention, through fusion of space-time dynamic modeling and a multi-source monitoring data intelligent compensation mechanism, high-precision identification of the groundwater pollution state and reliable prediction of the risk trend are realized.

This utility model relates to the technical field of water quality surveying equipment, and discloses a groundwater quality surveying and sampling device, comprising: a support frame; multiple sampling bottles mounted on the support frame and arranged in a circumferential array, each sampling bottle including a bottle body and a cap detachably connected to the bottle body, the cap being provided with a sealing component and a water inlet, the sealing component being able to open and close the water inlet; a rotating disk having an annular protrusion thereon, the support frame having an annular groove thereon, the annular protrusion and the annular groove being slidably and rotatably connected, the rotating disk having an opening and closing component, rotating the rotating disk selectively utilizing the opening and closing component to connect with the sealing component to open the water inlet; and a power component for driving the rotating disk to rotate. This utility model, by providing an annular groove on the support frame and an annular protrusion on the rotating disk, and by slidably and rotatably connecting the annular protrusion and the annular groove, and mounting the opening and closing component on the rotating disk, can ensure the stability of the opening and closing component during operation.

This invention discloses an information measurement device and method for the river water-groundwater conversion process in arid areas, relating to the field of water flow information measurement technology. The method involves obtaining the groundwater management area, constructing an electronic groundwater management map based on the management area, obtaining the water flow conversion route from the river water in the arid area to the groundwater location, selecting groundwater conversion information measurement points based on the water flow conversion route, marking these points in a groundwater conversion model, pre-setting groundwater quality standards based on the groundwater location and marking them corresponding to the groundwater location in the groundwater conversion model, and measuring the water quality information along the water flow conversion route based on the groundwater conversion information measurement points to obtain measurement information. The data from the entire river water-groundwater conversion process in arid areas is relatively clear and explicit, which can greatly improve the accuracy of groundwater measurement.

The invention relates to the technical field of underground monitoring well maintenance, and discloses an underground monitoring well unblocking and desilting process which comprises the following steps: S1, clogging judgment: monitoring the water level and the water quality of an underground monitoring well, and on the premise that the current underground monitoring well simultaneously meets the periodical fluctuation abnormity of the underground water level and the abnormal water quality of the underground water, determining the clogging of the underground monitoring well; verifying whether the current underground monitoring well is clogged or not through a video, and if so, carrying out the next step; s2, desilting operation is conducted, specifically, scrubbing and piston flushing are conducted on the inner pipe wall of the current underground monitoring well in sequence, and then water body replacement and washing are conducted; and S3, desilting effect evaluation: the current desilting effect of the underground monitoring well is evaluated, if the current desilting effect is judged to be unblocked, the process is ended, and if the current desilting effect is judged to be clogged, the process jumps to the step S2. In addition, the invention further discloses an underground monitoring well unblocking and desilting device which is applied to the step S2. According to the method, a complete underground water desilting and unblocking process is formed through underground monitoring well clogging judgment, desilting operation and desilting effect evaluation.

The invention relates to the technical field of water quality monitoring, in particular to an underground water quality layered monitoring device and method.The method comprises the steps that interlayer water quality difference degrees of all time periods are obtained according to multi-dimensional water quality parameters of all aquifers; based on the influence of the disturbance parameter of each time period on the interlayer water quality difference degree, combining the maximum water quality disturbance characteristic of each water-bearing layer to obtain the sampling risk representation degree of each water-bearing layer; according to the interlayer water quality difference degree and the water pumping rate of each time period, constructing an objective function of an ARIMA prediction model; the objective of the objective function is to maximize the predicted interlayer water quality difference degree and minimize the predicted water pumping rate; the dynamic adjustment control weight of the target function is obtained by the sampling risk representation degree; the predicted water pumping rate is obtained based on the target function minimization principle, the accuracy and reliability of the predicted water pumping rate are improved, and therefore the underground water quality monitoring accuracy is ensured.

The invention provides a groundwater pollution risk assessment method based on a groundwater environment background value, and aims to solve the problems that the influence of a natural process and human activities on a groundwater environment is difficult to discriminate in the prior art, the background value is inaccurate to determine, the risk management mode is extensive and the like. The method comprises the following steps: dividing a human activity influence area and a natural dominant area by constructing a human activity quantification model and a judgment model, and determining an underground water environment background value; introducing an underground water dynamic field activeness index, and establishing a water quality dynamic threshold model associated with the activeness; dividing main control factor subareas of different groundwater qualities according to the activeness-water quality discrimination relation and the pollution source analysis result; and the zoning result is verified by adopting methods such as isotopic tracing or specific pollutant analysis, a risk management and control strategy matched with the characteristics of each zone is provided, scientific improvement of underground water background value determination is realized, and a refined technical support is provided for underground water environment protection and restoration work.

The invention provides lithium type physiotherapy water and a preparation method thereof, and belongs to the field of health care. The preparation method of the lithium type physiotherapy water comprises the following steps: (1) taking thermal spring water, and adjusting the pH value to 5-8; and (2) evaporating and concentrating the thermal spring water of which the pH is adjusted in the step (1) to 10-50 times of concentration multiple, so as to obtain the lithium type physiotherapy water. According to the lithium type physical therapy water, the hot spring is used as a raw material, and the lithium type physical therapy water meeting the physical therapy hot mineral water standard is prepared by adopting a specific method. The lithium type physical therapy water has high physical therapy component and beneficial component content, and has great potential in physical therapy effect; meanwhile, the lithium-type physical therapy water meets the IV-class standard of the underground water quality standard, and is good in safety when being used as bath water. The invention provides more hot spring utilization forms, can expand the utilization way of hot spring resources, and has a good application prospect.

The present application provides a kind of fracturing fluid drilling fluid spectral detection method, comprising the following steps: step 1, different concentration fracturing fluid and drilling fluid are matched out;Step 2, the absorption spectrum of different concentration fracturing fluid and drilling fluid is obtained;Step 3, based on partial least squares regression method, the absorption spectrum and concentration of different concentration fracturing fluid and drilling fluid are used to establish the inversion model of absorption spectrum and concentration to principal component;Step 4, the content of fracturing fluid and drilling fluid in the liquid to be measured is detected by inversion model.The present application uses absorption spectrum to quantitatively detect the content of fracturing fluid and drilling fluid in groundwater, which is beneficial to provide effective data basis for groundwater source fracturing fluid and drilling fluid pollution degree evaluation and timely management, can overcome the problem of difficult groundwater quality detection after shale gas exploitation, has the characteristics of short time consumption, low cost, small workload and sustainable detection.

The utility model relates to an underground water quality surveying and sampling device which comprises a sampling pipe, a conical pipe bottom fixedly connected to the bottom of the sampling pipe, a water inlet pipe fixedly connected to the bottom of the conical pipe bottom, a hollow screw-in valve element in threaded connection with the bottom end of the water inlet pipe, a valve ball arranged at the top of the screw-in valve element, and an elastic assembly abutting against the valve ball and arranged in the conical pipe bottom. The screw-in valve element is screwed in to push the valve ball to compress the elastic assembly to adjust the water inlet pressure. According to the underground water quality surveying and sampling device, the screwing-in valve element capable of screwing in and adjusting the elastic assembly is used for adjusting the water pressure resistance of the valve ball, so that a water sample can eject the valve ball open to enter the sampling pipe only when the target depth is reached in water, deep water sample collection is achieved, and the water quality surveying accuracy is improved.

The invention relates to the related technical field of water quality exploration, in particular to a water quality exploration device for mining exploration, which comprises a sampling cylinder, the connecting shell is fixedly connected to the top of the sampling cylinder; the connecting rope is arranged at the top of the connecting shell; the hole body is formed in the outer side of the sampling cylinder; the liquid discharge pipe is arranged on the outer side of the sampling cylinder; by changing the position of the groove body, when the sampling cylinder is located in underground water layers with different depths, underground water samples are collected and stored respectively, subsequent detection of underground water quality is facilitated, and the sampling and surveying efficiency of underground water in a mining area is improved; by arranging the limiting groove, the sampling barrel and the balancing weight can be conveniently connected or detached, and later maintenance is facilitated; when the sampling cylinder is connected with the balancing weight, the positioning rod has a limiting effect on the round head rod, so that the height of the partition plate and the height of the cover body are locked, otherwise, when the sampling cylinder and the balancing weight are disassembled, locking on the height of the partition plate is canceled, and the partition plate is convenient to disassemble and replace.

The present application relates to a kind of soil and groundwater remediation system and method, system includes remediation medium conveying device, remediation medium injection device and groundwater extraction dynamic sensing device;Remediation medium conveying device includes medicament delivery unit and compressed air delivery unit;Remediation medium injection device includes pressure hose, porous pipe and propelling injector, pressure hose one end is connected medicament delivery unit and compressed air delivery unit, the other end is connected propelling injector, porous pipe is inserted into the contaminated underground soil layer area to be repaired, propelling injector is arranged in porous pipe;Groundwater extraction dynamic sensing device includes groundwater extraction well, dry contact liquid level meter and integrated online detection control cabinet.Compared with prior art, the present application realizes soil groundwater in-situ medicament injection repair, aeration repair and other multi-method switching, can dynamically perceive groundwater quality and hydrogeological condition, realizes the balanced circulation repair of soil and groundwater.

The present application belongs to the technical field of tailings pond engineering test, and particularly relates to a tailings pond engineering anti-seepage simulation test device and method, which comprises a test box, and a curtain grouting assembly is detachably arranged in the test box; the curtain grouting assembly comprises a steel pipe with holes and a plunger, and the steel pipe on the upper side of the plunger is filled with hot melt; the steel pipe with holes is embedded in a mountain model at dam foundation and dam shoulder positions; a seepage interception dam model is arranged on the mountain model downstream of a tailings pond initial dam model; a groundwater quality monitoring well model is arranged on the mountain model downstream of the seepage interception dam model; when the plunger moves downward, the hot melt is melted and dropped to the base layer to solidify, and pressure grouting is carried out in the steel pipe with holes where the grouting layer is located to form a vertical anti-seepage curtain. The device is convenient to operate, high in test efficiency, and accurate and reliable in test data, and can be used for tailings pond anti-seepage simulation research and can accurately and efficiently research the anti-seepage effect of tailings pond engineering anti-seepage measures.

The invention belongs to the technical field of zinc smelting leaching residues, and particularly relates to a method for curing and stabilizing zinc smelting leaching residues by injecting an agent in situ, which specifically comprises the following steps: detecting the Zn concentration and Cd concentration in a zinc smelting leaching residue leaching solution; and calculating the dosage of TMT-55, PDTC and NaH2PO4 according to a detection result, and leaching the zinc smelting leaching residues by using a mixed solution of TMT-55, PDTC and NaH2PO4 to realize solidification and stabilization. According to the method, the mixed solution of TMT-55, PDTC and NaH2PO4 is used as an agent for in-situ solidification and stabilization of the zinc smelting leaching residues, the good solidification effect is achieved, and meanwhile remarkable environmental benefits and economic benefits are achieved. Besides, a mixed solution of TMT-55, PDTC and NaH2PO4 is used as an agent for in-situ solidification and stabilization of the zinc smelting leaching residues, Zn and Cd in the zinc smelting leaching residues are converted into more stable forms, and the concentration and pH value of Zn and Cd in percolate meet the III-class standard in the Quality Standard for Underground Water (GB / T 14848-2017).

This utility model discloses a depth-adjustable groundwater sampling device for groundwater quality testing, belonging to the field of groundwater testing technology. It includes a U-shaped frame with a sleeve assembly on the inner side. A motor assembly is installed at the upper part of the U-shaped frame, above the sleeve assembly. This utility model incorporates a movable thawing device, allowing workers to move the device as needed using wheels, thus reducing the difficulty of moving the device and lessening the workload. Furthermore, when ground conditions permit, workers can fix the device in place using an electric lifting rod and a cone-shaped structure, reducing the possibility of the device deviating from its original position due to external collisions. Additionally, workers can use a fan and an electric heating rod to thaw the surface layer of frozen groundwater in winter, thereby improving the device's working capacity.

This utility model discloses a biomimetic earthworm detection device, comprising: a detection head body, with a spiral drill bit at the front end of the detection head body, and a main control board fixedly installed on the inner wall of the detection head body; a sleeve, disposed at the rear end of the detection head body; a detection component for detecting groundwater quality, including a pressure sensor and a position sensor; and a purification component for purifying groundwater, including an activated carbon adsorption layer and an ion exchange membrane. This utility model relates to the field of groundwater detection technology. The purpose of this utility model is to solve the problems of existing detection devices being inconvenient to change the detection direction, and the detection results being one-sided due to the complexity of water systems and the uneven flow velocity. The technical effects achieved are: this application can change the detection direction, can detect a larger groundwater area, and the detection results are more comprehensive, making this utility model more practical.

The invention relates to the technical field of environmental remediation, and discloses a valley type historical remaining pollution source underground water prevention and control device and method.The prevention and control device comprises an anti-scour panel and a water retaining wall which are laid on the surface of a valley and used for achieving diversion of surface water and underground water; and water inlet and outlet area water guide walls are arranged below the earth surface. Polluted underground water is intercepted by combining a water inlet side with a peripheral waterproof curtain, and all the polluted underground water is introduced into the buried PRB pool. Holes are formed in the PRB pool in a staggered mode through partition walls to guide water flow to form up-down baffling, a reduction area, an oxidation area and an adsorption fixing area are arranged along the way, and assembly type modular stuffing boxes capable of being hoisted, unloaded and replaced are arranged in all the areas. According to the invention, sewage disposal diversion and unpowered water catchment are realized, and graded purification is carried out on combined pollution; the modular filler is combined with on-line monitoring, so that the defects that the traditional filler is easy to block and difficult to replace are overcome, and the water quality safety of underground water is guaranteed for a long time.

This disclosure presents embodiments of a method, apparatus, and electronic device for water resource quality testing applied to water diversion projects. One specific implementation of the method includes: conducting water quality testing on the water area where the water diversion project is located to obtain surface water quality datasets and groundwater quality datasets; constructing a surface data structure network based on a pre-built water area simulation model and the surface water quality datasets; constructing a groundwater data structure network; conducting water pollution testing on the water area to generate surface water quality test result sets and groundwater quality test result sets; performing correlation analysis on the surface water resources and groundwater resources of the water area to generate water pollution correlation features; identifying surface water pollution areas and groundwater pollution areas of the water area; and determining the surface water quality test result sets, groundwater quality test result sets, surface water pollution areas, groundwater pollution areas, and water pollution correlation features as the water resource quality testing results. This implementation can improve the accuracy of the overall water area quality testing results.

This invention relates to the field of groundwater detection technology and discloses an ecological environment groundwater monitoring and sampling device. The device includes a sampling assembly and a sample storage bottle mounted at the top of a fixed monitoring well, and a vertically positioned piston tube. The sampling assembly comprises multiple sampling tubes detachably connected end-to-end, with the top of each tube extending into the sample storage bottle. A sampling head is detachably connected to the lower end of each sampling tube. The diameter of the piston tube is larger than the diameter of the sampling tubes, and a sampling hole is provided at the bottom of the sampling head. This invention has the following advantages and effects: by combining multiple sampling tubes and piston tubes with the piston assembly, water samples can be continuously extracted from any depth. Utilizing the principle of repeated negative pressure, multiple samplings can be performed at a single point within a fixed monitoring well, enabling high-frequency groundwater sampling and facilitating timely monitoring of groundwater quality changes.

The invention discloses an underground self-adaptive intelligent sampling system and method based on a dynamic response strategy, and the system comprises a multi-source sensing module which is used for obtaining underground environment parameters and underground water quality information in real time; the edge calculation and intelligent decision module is used for fusing the data of the multi-source sensing module; the self-adaptive execution module is used for receiving an instruction of the intelligent decision-making module; the sample pretreatment and temporary storage module is used for carrying out online pretreatment and independent packaging on the obtained underground water sample and carrying out associated coding with sampling process data; and the ground cooperation and communication module is used for realizing data interaction, instruction receiving and state reporting between the underground system and the ground monitoring center. According to the method, the transformation from'program fixing 'to'strategy dynamic' and from'remote control 'to'self-adaption' is realized, and the intelligent level and the operation reliability of obtaining high-quality and high-representativeness underground samples under complex geological conditions are remarkably improved.

The application discloses a sampling device for groundwater quality monitoring and relates to the technical field of monitoring sampling, which comprises a lifting structure and a sampling container, and further comprises a sealing structure arranged at the opening sides of both ends of the sampling container, a placing rack with a placing groove formed in the side wall and a connection ring slidingly arranged at the top, an opening and closing structure for controlling the sealing state of the sealing structure, a buckling seat fixedly arranged at the bottom of the placing rack, a connection part with a connection buckle arranged at the top and a connection piece arranged at the bottom, a connection rope with two ends connected with the connection part and the placing rack respectively, a tripping piece slidingly arranged in the connection part and used for releasing the buckling of the connection buckle and the buckling seat, and a pressure measuring part installed on the side wall of the connection part and used for driving the tripping piece to ascend according to the pressure on the outside of the connection part. The two-stage strategy of rough screening first and fine checking later is adopted, the fast mode is used for the non-polluted or low-risk monitoring well, the fine mode is started for the abnormal well, and the contradiction between over-sampling and insufficient sampling is avoided.

The utility model provides an underground water monitoring device for a red mud storage yard. The underground water monitoring device comprises a monitoring well body; the monitoring well body comprises a monitoring well and an underground water sampling pipe; the monitoring well is of a hollow annular structure; the underground water sampling pipe is vertically arranged in the hollow part of the monitoring well, and a plurality of water inlet holes are distributed in the pipe wall of the lower part of the underground water sampling pipe; a plurality of sensors for monitoring underground water quality are arranged in the underground water sampling pipe; and a filter layer is filled between the outer wall of the underground water sampling pipe and the inner wall of the monitoring well body. According to the utility model, the plurality of sensors are arranged in the underground water sampling pipe, so that the purpose of online monitoring and analyzing the underground water quality of the red mud storage yard is achieved; through regular sampling in the underground water sampling pipe, the purpose of regular sampling analysis of the underground water of the red mud storage yard is achieved, and the accuracy and timeliness of monitoring data can be ensured by combining online monitoring and regular sampling analysis.

This invention relates to the field of data processing technology, specifically to a method and system for online monitoring and early warning of groundwater pollution. The method includes: real-time acquisition of groundwater quality parameters and hydrogeological parameters from upstream background wells and perimeter monitoring wells to form monitoring data for these wells, and preprocessing the monitoring data; extracting background feature parameters from the upstream background wells based on the preprocessed monitoring data and establishing a corresponding baseline reference system; and, based on the baseline reference system, introducing a leachate water quality index concentration vector and a covariance transfer matrix to analyze the deviation of the monitoring data from the perimeter monitoring wells. This invention, by introducing a leachate water quality index concentration vector and a covariance transfer matrix, achieves deep decoupling and statistical analysis of multi-source heterogeneous monitoring data, such as water quality and groundwater hydrogeological parameters acquired by online sensors, during data processing.

The utility model discloses underground water quality sampling equipment for water conservancy detection, and belongs to the technical field of underground water quality sampling, the underground water quality sampling equipment comprises a fixing plate, the upper surface of the fixing plate is fixedly connected with a rolling assembly, the rolling assembly comprises two supporting plates, a first rotating shaft, a rolling roller, a transmission line and scale marks, the surface of the fixing plate is provided with a through hole, and the first rotating shaft is fixedly connected with the rolling roller. A rolling assembly is arranged on the upper surface of the sampling barrel, a limiting assembly is arranged on the side face of the rolling assembly, the limiting assembly comprises a square sliding rod, a handle, limiting teeth and limiting wheels, a rotating block is fixedly connected to the lower surface of a fixing plate, and supporting legs are rotatably connected to the surface of the rotating block. According to the underground water sampling device, by arranging the sampling assembly, a threaded column drives a threaded pipe and a piston to move up and down, so that underground water is conveniently extracted through a communicating pipe and independently stored, and by arranging a plurality of supporting legs and a plurality of rotating blocks, a fixing plate is conveniently supported.

This invention discloses a groundwater pollution early warning and assessment method applicable to the produced water reinjection process in oil and gas fields, belonging to the field of groundwater environmental protection technology. It collects shallow groundwater quality indicators and deep microseismic monitoring data through shallow monitoring wells and microseismic monitoring stations deployed around the reinjection wells. A system is constructed comprising three categories of indicators: shallow conventional water analysis, microseismic monitoring, and hydrogeological data. An ARIMA model is used to dynamically set thresholds, and an improved AHP-LightGBM model is used to calculate the deep formation stability and wellbore integrity indices. A fuzzy comprehensive evaluation method is used to calculate the shallow pollution risk value. A comprehensive risk value is obtained through weighted fusion, and four early warning levels are established, along with differentiated response measures. This invention achieves collaborative monitoring of shallow water quality and deep structure, improves risk assessment accuracy through multi-algorithm fusion, provides technical support for the prevention and control of groundwater pollution in deep produced water reinjection, and is applicable to groundwater environmental safety assurance scenarios in produced water reinjection operations.