272 results about "Bottom water" patented technology

The invention belongs to the technical field of oil and gas reservoir energy development, and discloses a three-dimensional injection and production well pattern construction method based on a multi-objective algorithm. The problem that the delimited potential area is difficult to effectively use due to the fact that existing potential evaluation is only based on a single index is effectively solved. Comprising the steps that a fault inner core, a fault outer core, a fracture development dense zone and a secondary fracture zone are proposed; carrying out inter-well connectivity analysis on the oil reservoir units by utilizing an oil reservoir engineering method and a numerical simulation streamline method; based on the embedded discrete fracture model, analyzing a remaining oil distribution mode under the control of the nuclear band structure; a multi-parameter comprehensive evaluation system is constructed by combining the remaining oil utilization potential, the displacement power, the flow capacity, the connectivity relation and the reserve abundance; a three-dimensional injection-production well pattern construction technology is formed for an oil reservoir with or without bottom water; based on a multi-objective optimization algorithm, three-dimensional collaborative optimization of the recovery ratio, the well control reserves and the net present value is taken as a core, and a high-efficiency well location deployment technology for different fault zones is constructed.

The invention discloses an optimal reservoir building horizon site selection method for a multi-layer water-bearing gas reservoir underground gas storage. The method comprises the following steps: performing reservoir feature evaluation on each layer in a target gas reservoir; analyzing a reservoir cover system by utilizing the relationship between the lithologic configuration relationship of two sides of the fault and the fault mud ratio, and evaluating the change of a three-dimensional stress field under the injection-production pressure disturbance; from the perspective of production dynamics, historical data of a target gas reservoir are researched for productivity analysis, the water invasion amount and the gas-water ratio are calculated layer by layer, fine description and quantitative characterization are performed on the water invasion dynamics, and the gas-water distribution and migration conditions are determined; and finally, carrying out comprehensive evaluation, and selecting an optimal library building horizon. From two aspects of reservoir geologic characteristics and production dynamics, quantitative analysis and evaluation are carried out on all layers and small layers of the target gas reservoir, then the optimal target layer position can be relatively accurately selected, the reservoir building operation effect is good, the oil ring damage degree is small, and bottom water invasion can be effectively blocked.

The invention discloses a residual oil quantitative evaluation method and device, a medium and computing equipment. The method comprises the steps that a ship bottom type remaining oil distribution mode of the homogeneous thin layer bottom water reservoir is determined; obtaining the strong water flooding radius under various bottom water thicknesses in the double-high development stage; obtaining quantitative expressions of remaining oil enrichment areas under various bottom water thicknesses; and obtaining the weak water flooding thickness H of each position of the oil reservoir. The residual oil quantitative evaluation method comprises the following steps: establishing a standard model under different bottom water thicknesses by acquiring strong water flooding radiuses under various bottom water thicknesses in a double-high development stage, and determining a classified bottom water reservoir mixed source displacement mode; aiming at the difficulty in shaping and quantitative description of'ship bottom type 'residual oil, positioning of a potential enrichment area is carried out based on water logging interpretation of a passing well, and rapid quantitative expression of the residual potential area is realized by acquiring quantitative expressions of the residual oil enrichment area under various bottom water thicknesses, so that a reliable basis is provided for accurate potential tapping of residual oil in a double-high stage; and the process is simple and efficient.

The utility model discloses a pond oxygenation temperature adjusting device which comprises a stable conveying device, a conveying pipeline and a pumping device, the stable conveying device is connected with the pumping device through the pumping device, and the stable conveying device is arranged below the pumping device. The stable conveying device is used for sucking pond bottom water; the conveying pipeline is used for controlling the depth of the stable conveying device in the pond; the pumping device is used for placing a water suction pump and sucking pond water; the utility model provides the oxygenation and temperature regulation equipment for the pond, which is simple in structure, reasonable in design and capable of adapting to different depths and areas with different sizes.

The invention provides a device and a method for purifying culture circulating water in a higher-place pond, and the method specifically comprises the following steps: the culture circulating water and residual feed and excrement in the higher-place pond flow out from a sewage draining exit at the center of the pond bottom, and gradually flow into a self-settling filter well through a water inlet at the bottom of the well; aquaculture circulating water is filtered by an immersion filtering device in the well and overflows out of the well, and residual feed and excrement settle to the bottom of the well and then are discharged through a shrimp shell excrement drain outlet; the breeding circulating water overflowing out of the well flows through a hypochlorous acid oxidation device to be disinfected; the culture circulating water treated by the hypochlorous acid oxidation device flows into an aeration dechlorination tank to remove harmful gas; the culture circulating water treated by the aeration dechlorination tank flows into the ecological tank, so that the contents of carbon, nitrogen, phosphorus and the like in the water are reduced; and the culture circulating water treated by the ecological pond is pumped into the higher-place pond through a reflux pump. The system is efficient, energy-saving, small in occupied area, high in automation degree and capable of improving the water quality management efficiency and stability of higher-place pond culture circulating water.

The application discloses a deep-sea mining system bunker device with water inlet at the bottom, and relates to the field of deep-sea mining.The technical scheme of the application comprises a bunker room;the lower part of the inner wall of the bunker room is a conical surface structure with a large upper part and a small lower part;the top of the bunker room is vertically provided with a riser pipe, the lower end of the riser pipe extends to the inside of the bunker room, the upper end of the riser pipe extends to the upper part of the bunker room and is connected with a storage room;the top of the bunker room is provided with a feeding opening, the feeding opening is located at one side of the riser pipe, the feeding opening is connected with a feeding pipe, the feeding pipe is provided with a first valve and a second valve, and a storage space is arranged between the first valve and the second valve;the bottom of the bunker room is provided with a lower bunker opening corresponding to the riser pipe, the lower bunker opening is connected with a transition pipe, and the lower part of the transition pipe is connected with a water outlet and a water inlet.The application can conveniently add minerals into the bunker room, and the minerals will not flow out during the injection process, the lower part of the conical surface structure of the inner wall of the bunker room can make the mineral particles gather in the lower bunker opening, and the upward water flow can easily lift the mineral particles.

The invention relates to a water invasion volume quantitative identification method based on a semi-ellipsoid radial seepage model, and belongs to the technical field of oil reservoir engineering. The method comprises the following specific steps that dimensionless time tD and pressure increment delta pj of an oil well are calculated; calculating dynamic reserves without water invasion according to the dynamic data of the oil well and a flowing substance balance equation; calculating a water invasion coefficient; the water invasion volume is obtained. The invention relates to a novel method for calculating invasion volumes of different types of water bodies invaded into an oil reservoir by radial flow edge and bottom water by utilizing a semi-ellipsoid geometric model of a Van Everdex-Hust equation principle, which can solve the problem of quantification of the invasion volumes of the water bodies at any moment in the water invasion process of the edge and bottom water oil reservoir. The influence of unstable seepage on the water invasion process is considered, the basic law of fluid flowing in the water invasion process is met, meanwhile, the water invasion coefficient calculation method which does not need to estimate the size of an oil reservoir is provided, and the overall error is small.

This invention relates to the field of natural gas development and discloses a method, apparatus, storage medium, and processor for predicting the production of bottom-water gas reservoirs. The method includes: training a model based on a training set of production data from the bottom-water gas reservoir to obtain a first long short-term memory (LSTM) neural network model; optimizing hyperparameters based on a validation set to obtain a second LTM neural network model and a corresponding first error; testing the model based on a test set to obtain a corresponding second error; determining the generalization degree based on the first and second errors, and using the second LTM neural network model with a generalization degree meeting preset requirements as the target bottom-water gas reservoir production prediction model; and predicting the production of the bottom-water gas reservoir based on the target bottom-water gas reservoir production prediction model. This method captures long-term dependencies in time-series data using a LTM neural network, which can significantly improve the accuracy of bottom-water gas reservoir production prediction, thereby providing reliable support for oil and gas exploration and production decisions.

This disclosure relates to the field of petroleum exploration and development technology, and in particular to a method and system for determining bottom water intrusion characteristics. The method includes: determining the water permeability and the correlation coefficients between the matrix and fractures in a target block of a fractured sandstone gas reservoir; establishing and solving a mathematical model for cylindrical bottom water intrusion in a single well of the fractured sandstone gas reservoir based on the determined water permeability and the correlation coefficients between the matrix and fractures, obtaining a pressure function representing the difference between the original water pressure and the pressure at any point within the gas reservoir; using the obtained pressure function, determining the dimensionless bottom water intrusion volume; and determining the cylindrical bottom water intrusion characteristics of the dimensionless bottom water intrusion volume with respect to dimensionless time based on the determined dimensionless bottom water intrusion volume. By establishing a mathematical model of bottom water intrusion and calculating the cumulative water intrusion volume, the bottom water intrusion characteristics are determined, enabling an understanding of the entire dynamic process of bottom water intrusion in the reservoir.

The utility model discloses a multi-step high slope torrent groove device which comprises a slope, a plurality of gullies are arranged from the upper portion to the middle portion of the slope, the upper end of the torrent groove is connected with the gullies, the lower portion of the torrent groove is arranged above a slope bottom road, the torrent groove comprises an end water guide groove, and the end water guide groove is arranged at the uppermost end of the torrent groove and connected with the gullies. The lower portions of the end water guiding grooves are connected with oblique water guiding grooves, the lower portions of the oblique water guiding grooves are connected with horizontal water guiding grooves, the oblique water guiding grooves are formed in the lower ends of the horizontal water guiding grooves, the oblique water guiding grooves and the horizontal water guiding grooves are provided with multiple sections, and the oblique water guiding groove at the lowest end is connected with the bottom water guiding groove. And the bottom gutter is arranged beside a slope bottom road and is connected with a roadside drainage system. By arranging the torrent groove, the problem of gully drainage is effectively solved, the erosion of water flow to the slope is greatly reduced, the slope soil body structure is stabilized, the disaster risks such as landslide are reduced, and the slope safety is powerfully guaranteed.

The invention discloses a water body-sediment pesticide in-situ synchronous monitoring device, and relates to the technical field of monitoring devices.The water body-sediment pesticide in-situ synchronous monitoring device comprises a floating body platform with a through hole formed in the middle, a sediment sampling assembly is arranged at the position of the through hole in the floating body platform, and a supporting frame is fixedly connected to the upper portion of the floating body platform; a water sampling component is mounted on the right side of the upper surface of the floating platform; the water body sampling assembly comprises at least three groups of second water pumps, the input ends of the three groups of second water pumps are fixedly connected with third connecting pipes, the lengths of the three third connecting pipes are different, a bracket is fixedly connected to the right front side of the upper surface of the supporting frame, and three groups of fourth connecting pipes are clamped in the bracket; the lower ends of the three fourth connecting pipes are fixedly connected with the output ends of the three second water pumps through flanges correspondingly. The device has the advantages that surface, middle and bottom water bodies are respectively collected through three groups of third connecting pipes with different lengths, and multi-dimensional data in the vertical direction are covered, so that one-sidedness of a single depth is avoided.

The utility model discloses a grouting experiment platform for simulating a complex surrounding rock environment of a tunnel, which comprises a cubic model box body formed by welding a plurality of independent steel plates, a front / rear side plate of the cubic model box body is provided with regular through holes and is externally connected with a water storage tank, and the water storage tank regulates and controls dynamic water pressure through a bottom water outlet and an external water pressure supply system; a detachable cover plate and a ground stress simulation system are arranged at the top of the model box body, the ground stress simulation system comprises a portal frame, a hydraulic jack and a bearing plate, and stratum stress is reproduced through hydraulic loading and pressure monitoring; the grouting equipment injects grout into the simulation tunnel through the pressure stirring barrel and the grouting guide pipe. The device can accurately simulate a seepage field and a stress field of a complex surrounding rock, and is used for analyzing a grouting liquid diffusion rule in a laboratory, optimizing grouting parameters and reducing site construction risks.

This invention provides granular materials for environmental improvement that, after being introduced into a body of water, initially float to promote the attachment and dispersal of microorganisms, and then naturally sink to improve the bottom sediment. [Solution] This granular material is formed by mixing a base material containing iron powder and carbon powder with a lightweight porous material derived from plants and then press-molding it. The granular material has a fine void structure inside, and initially floats on the water surface or near the surface due to the buoyancy of the void structure and the lightweight porous material derived from plants. After a certain period of time, as water is absorbed due to the stagnation of the water and the iron powder oxidizes, the specific gravity increases and the material sinks. Without using any special power or equipment, it can gradually achieve both "diffusion and microbial attachment in the surface layer" and "improvement of water and sediment quality in the bottom layer" simply by being added. Furthermore, by using recycled materials such as used hand warmers as the base material, it is possible to provide a resource-recycling material with a low environmental impact.

The application discloses an aquaculture tail water biological membrane purification device, and belongs to the field of environmental engineering water treatment. The device realizes tail water purification through a multilayer purification zone series connection structure, comprises a main body shell, a top water inlet and a bottom water outlet, at least two purification zones are arranged in the main body shell, the at least two purification zones are separated by a flow interception plate and are connected through a spiral descending water tank; the purification zone is filled with gravel (physical filtration and gradient denitrification), biological suspended filler (aerobic biological membrane oxidation) and coupled autotrophic filler (sulfur-iron synergistic denitrification and phosphorus removal) in layers. The spiral water tank prolongs the water residence time, and an aerator strengthens oxygen transfer; modular drawer plates and rotating plate supports facilitate maintenance, and combined with microbial flora and water quality sensor cloud monitoring, efficient synergistic removal of pollutants and system self-adaptive regulation and control are realized.

The invention discloses a clean water carrying air suspension proppant fracturing method for a shallow bottom water reservoir. The clean water carrying air suspension proppant fracturing method comprises the following steps: preparing an air suspension proppant; optimizing an underground fluid system, and selecting clear water as prepad fluid, sand-carrying fluid and displacing fluid; according to the reservoir geologic characteristics and the oil-bearing property, in combination with software, the fracture expansion condition is simulated, the sand amount, the construction displacement, the sand ratio and the prepad fluid proportion parameters are optimized, a construction pump injection program is designed according to the optimized parameters, the fracturing construction process is determined, and a clear water gas suspension sand fracturing technical mode is formed. The surface of the quartz sand is modified, the fracturing propping agent which can generate a large number of bubbles on the surface when encountering water and is fully suspended or flocculent semi-suspended in water is obtained, the fracturing method that clear water carries the air suspension propping agent is adopted, on one hand, the net pressure in a crack can be reduced, the crack height can be controlled, bottom water channeling due to pressure is avoided, and the fracturing propping agent can be recycled; and on the other hand, the sanding profile can be improved to realize effective support of the middle-upper oil layer, so that benefit development of the shallow bottom water reservoir is realized.

The invention relates to an edge-bottom water reservoir natural energy evaluation method, and belongs to the technical field of reservoir development. According to the edge-bottom water reservoir natural energy evaluation method, firstly, the rock pore compression coefficient is calculated, then the accumulated water invasion amount of the reservoir is calculated according to the geological parameters and the production and development parameters of the reservoir, and then the natural energy activity index of the reservoir is calculated. And finally, determining the natural energy activity degree of the oil reservoir according to the natural energy activity index. The edge-bottom water reservoir natural energy evaluation method is suitable for non-closed unsaturated water pressure driven reservoirs, namely the reservoirs which have connected water bodies and have the water invasion effect due to reservoir pressure drop in the exploitation process, is suitable for the reservoirs subjected to water injection development and natural energy production, and has high evaluation accuracy.

The application discloses a kind of based on stirling machine's emergency water collecting equipment, including condensing unit and water storage unit, and water in water-containing air is condensed to form liquid water droplets by the top condensing unit work, liquid water droplets from the condensing unit drop into bottom water storage unit and realize the collection of pure water.The relatively pure water is efficiently obtained in natural environment by the stirling device, without the fire source and other dangerous factors of distillation, safer and more efficient;The purity is higher than that of filtration and sedimentation;Compared with solar distillation, the device does not need to consider the sun angle, temperature and other conditions, and has wider application conditions and higher efficiency;The temperature of the produced water is low, the taste is better for drinking, and the rotation speed is limited by disassembling the speed limiting device for ice making, preservation or treatment in emergency.

The application discloses a kind of unmanned aerial vehicle low disturbance water sample sampling device and method for coastal wetland, device includes unmanned aerial vehicle aircraft, sampling unit and recovery unit;Surface sampler is the container bottle of top opening, two sides are connected first float ball and metal ball respectively, after entering water, rely on buoyancy and gravity coupling to keep bottle mouth inclination posture, surface water is naturally flowed into with hydrostatic pressure difference mode;Bottom sampler is the container bottle of airtight, top is equipped with exhaust hole, bottom side is equipped with water inlet, water inlet is hinged with the sealing baffle of with counterweight and guide stress plate, when entering water, water pressure moment overcomes counterweight damping moment to make baffle open smoothly, water enters in laminar flow mode;When rising, counterweight gravity makes baffle automatic reset seal.The application realizes the low physical disturbance of sampling link, can collect surface and bottom water sample once, to obtain water sample for testing dissolved oxygen, solubility greenhouse gas concentration, dissolved organic carbon, particulate carbon, nutrient salt, dissolved organic matter molecular composition.

The application provides a device and method for testing the plugging mechanism of a pressure-reducing well under the condition of bidirectional and alternate clear water and turbid water, which comprises a test tank base, a plexiglass tank fixed to the test tank base, a sample bottom support plate arranged at the bottom of the plexiglass tank, a multi-hole well pipe installed on the sample bottom support plate, a filter layer fixing frame installed on the outer wall of the multi-hole well pipe, and a filter layer sample fixed in the filter layer fixing frame. The filter layer sample is divided into at least three parts by a partition slot. The sample bottom support plate is supported on the test tank base by a bottom support plate annular support, and a bottom water tank is formed between the sample bottom support plate and the test tank base. The bottom water tank is connected to clear water through a bottom water inlet pipe. The top of the multi-hole well pipe is covered by a sample cover plate, and the top of the plexiglass tank is covered by a top fixed cover. A top turbid water tank is formed between the sample cover plate and the top fixed cover, and the top turbid water tank is used for connecting to turbid water. The application can realize the test and quantitative analysis of the plugging evolution process of the filter layer of the pressure-reducing well.

The present application relates to a kind of across fault city comprehensive pipe gallery anti-fault let pressure protection structure and construction method, belong to city infrastructure protection technical field.The across fault city comprehensive pipe gallery anti-fault let pressure protection structure, comprising: multiple distribution in pipe gallery both sides and bottom water bag, set on foundation stainless steel mesh belt chain and multiple set on stainless steel mesh belt chain stainless steel rectangular spring, bottom water bag is set between pipe gallery and stainless steel mesh belt chain, the top of bottom water bag and pipe gallery between is provided with PVC waterproof cloth, the stainless steel mesh belt chain is placed with multiple isolation shell in bottom water bag;Adapt to fault dislocation, improve the anti-deformation ability of pipe gallery;Using the combination design of water bag, foamed solidified soil, automatic pressure control water valve, can absorb and disperse stress when fault occurs dislocation, adjust pressure locally by water valve, reduce the direct impact on pipe gallery main structure, reduce the risk of pipe gallery wall cracking or damage.

The utility model relates to the technical field of water seal wells, and discloses a combined liquid level monitoring device for water level and oil level of a water seal well, which comprises a connecting seat, a well lid I is rotatably connected to the inner wall of the right side of the connecting seat, a liquid level monitoring sliding mechanism is arranged, the device floats on the water surface through a buoyancy ball, and an operator on duty regularly inspects to monitor the oil level of the water seal well. When the bottom water level observation sleeve enters the position below the well lid hole, the water level declines, and when the high water level observation sleeve stretches out of the position above the well lid, the water level rises, then the visual effect of water level monitoring is achieved, the oil product enables the connecting sleeve and the connected parts to rise through the buoyancy effect, then the connecting sleeve and the sliding column generate relative displacement, and the water level is monitored. A worker can know that a large amount of floating oil appears in the well by observing the shortening degree of the oil level observation sleeve, so that the worker can conveniently and rapidly observe the water level and oil level observation conditions in the water seal well at the same time, and more space occupied by the device is reduced.

The present application relates to a kind of shrub ecological planting module suitable for side slope, including straw planting shell, sponge water storage space, sponge filler, water-permeable hole, bottom water-retaining layer, water-permeable substrate layer, grass planting space, water inlet groove and other structures, when it rains, rain flows from high to low along the slope surface, lawn grass in grass planting space can intercept water flow, quickly infiltrate through water-permeable substrate layer and enter sponge water storage space through water inlet groove and be absorbed by sponge filler, while bottom water-retaining layer in organic planting space also absorbs water; Both jointly act, for shrub root system continuously lock water supply, in dry season, it can also maintain the water supply of plant growth in planting module, save artificial maintenance cost and water resources. The present application realizes the function of "lag, infiltration, storage and use" of side slope soil, improves the nutrient structure of side slope soil body, solves the problems of difficult maintenance, low survival rate and poor slope protection effect after shrub planting on side slope.

The invention relates to the technical field of fracturing flow-back fluid treatment, and discloses a fracturing flow-back fluid treatment device and a treatment process thereof.The fracturing flow-back fluid treatment device comprises a tank body and a sewage pipe, the lower end of the sewage pipe is connected with a sewage inlet, the upper end of the sewage pipe is located in the tank body, and sewage obtained after gas-liquid mixing enters the sewage pipe from the sewage inlet; a branch pipe and a diversion pipe; the rotating shaft is fixedly connected with the flow guide pipe and rotationally mounted on the tank body, the distance between the lower end of the flow guide pipe and the rotating shaft is smaller than that between the upper end of the flow guide pipe and the rotating shaft, and the upper end of the flow guide pipe has a downward trend under the action of gravity; one end of the limiting rod is located in the tank body, the other end of the limiting rod is located outside the tank body, the limiting rod is installed on the tank body in a sealed and sliding mode, the sliding direction of the limiting rod is the same as the radial direction of the tank body, the limiting rod is provided with a reducing section, the reducing section makes contact with the outer pipe wall of the lower end of the flow guide pipe, and different outer diameters of the reducing section drive different inclination angles of the flow guide pipe. The oil phase purity of the top oil outlet and the water quality of the bottom water outlet can be improved.

The utility model discloses a water quality monitoring sampling device based on unmanned plane delivery realizes the goal of automatic sinking, fast, automatic sampling after delivery. The top and bottom of sampling cylinder are equipped with annular flange and check valve mounting disc, the annular flange is connected unmanned plane through the rope, and the check valve core is installed in the ladder hole of check valve mounting disc, and the spring is arranged between check valve core and ladder hole, the slip ring sliding sleeve is arranged on the outside of sampling cylinder and the magnetic ring body is fixedly installed on the slip ring, the inner chamber of sampling cylinder is provided with magnetic piston assembly, the magnetic piston assembly is attracted with the magnetic ring body of outside, when the magnetic ring body moves, the magnetic piston assembly is driven to move in the sampling cylinder. The technology uses unmanned plane to assist the suspension operation, realizes the goal of automatic sinking after delivery, and the water quality of water bottom layer is fast and automatically sampled, the check valve core is automatically closed after sampling, and returns to the shore quickly, and can repeatedly sample.

The invention discloses a dual-purpose triple uplift tubular pile for underground water resources and a construction method. A pile body of the triple uplift pipe pile is composed of a top water inlet section, a middle standard section and a bottom water pumping section with a pile tip. The pile sections are connected into a whole through annular end plates, and the hollow pipe cavities of the pile sections of the pile body are sequentially communicated to form a water storage space. A water pumping channel is arranged in the concrete pipe wall of each pile section, the water pumping channel in the bottom water pumping section communicates with a water pumping opening in the bottom of the water storage space, and the water pumping channel in the top water inlet section communicates with a water outlet connector in the pile top. A water inlet channel with a control valve is arranged on the side wall, below the pile top, of the top water inlet section. When the floating risk exists in the basement, underground water can be discharged into the pipe pile to be stored, redundant underground water is turned into benefits, the floating risk of the underground structure is eliminated, and meanwhile water resource utilization is achieved.

The utility model relates to the technical field of charging piles, in particular to a waterproof sealing assembly and a buried lifting charging pile. In order to solve the problems that an existing buried charging pile is insufficient in single-layer sealing waterproof performance and water is prone to entering a pit during lifting, a double-sealing and water guiding structure is adopted in the scheme. The sealing assembly comprises a ground box pre-buried in a concrete base layer, and a top cover is arranged on the top. An inclined first sealing edge is arranged around the top cover and is in contact with the ground box to form a first waterproof layer; a sealing frame is additionally arranged at the bottom of the top cover and pressed with the top face of the ground box to form a second waterproof layer. A water retaining frame is fixed to the top of the ground box, and a bent arc-shaped part of the water retaining frame can block surface water flow. The charging pile body drives the chain wheel and chain mechanism to ascend and descend through the motor, the water guide pipe introduces accumulated water outside the water retaining frame into the bottom water tank, and the liquid level sensor triggers the water pump to automatically drain water. The structure improves the sealing reliability, reduces the pit water accumulation risk, and prolongs the service life of equipment.

The utility model discloses a solar aerator, and particularly relates to the technical field of aerators. The solar aerator comprises a buoy, an air pump and a solar power generation assembly are installed at the top of the buoy, an air delivery pipe is installed on the air pump, an air outlet assembly is installed at the end, away from the air pump, of the air delivery pipe, the solar aerator further comprises an insertion rod, the length of the insertion rod is larger than 3 m, and a top plate is fixed to the top end of the insertion rod. A rear rope is installed at the bottom of the top plate, and the bottom end of the rope is fixed to the air outlet assembly. The solar aerator provided by the utility model can be used for directly aerating a deep water body and improving the oxygen deficit condition of a bottom water body.

The invention belongs to the technical field of oilfield development, and discloses a bottom water reservoir extraction liquid yield increase well selection method, system and equipment, a medium and a product. The method comprises the steps that parameters related to the extraction liquid yield increasing effect are collected to serve as indexes to be selected, and extraction liquid yield increasing well selection related indexes of the bottom water reservoir are selected according to the correlation between the yield increasing effect of an applied extraction liquid well and the parameters of the well; taking the yield increase amplitude as a dependent variable, taking each related index as an independent variable, and determining a weight coefficient of each related index; determining a data classification boundary of each related index; according to the multiple between the expected beneficial variation and the actual beneficial variation of each related index, determining the classification coefficient of each related index classification; and carrying out weighted addition on the classification of each related index according to the classification coefficient, and accumulating results to obtain a comprehensive evaluation index of the liquid extraction well as a basis for selecting the liquid extraction well. Scientific well selection for bottom water reservoir liquid extraction and yield increase is realized by establishing a comprehensive index system.

The invention discloses a bottom water oil and gas reservoir horizontal well yield increase and water control method, and relates to the field of bottom water oil and gas reservoir development, the method comprises the following steps: dividing land and offshore scenes through multi-scene reservoir parameter dynamic coupling, and obtaining comprehensive coupling parameters through parameter normalization and dynamic weight calculation; in combination with perforation-fracturing parameter mutual feedback, construction parameter adaptation is achieved through multi-parameter linkage calculation; a high-yield water section is identified through distributed optical fiber sensing, and a degradable plugging agent is directionally injected to complete meter-scale segmented water control; matching a productivity prediction sub-model corresponding to the oil reservoir type, and optimizing the prediction precision through deviation correction; production data is collected based on dual-mode transmission, a regulation and control instruction is generated through processing and fusion, period optimization is carried out, and a closed-loop regulation and control system is formed. Meanwhile, an emergency treatment and recovery process is set, and construction safety is guaranteed. According to the method, core technologies such as dynamic coupling, parameter mutual feedback and accurate water control are integrated, and the problems that bottom water coning is fast, yield increasing and water control collaboration is poor, and cross-scene adaptation is insufficient are solved.

A method for calculating the current oil-water interface depth in developed edge-bottom water reservoirs. It includes defining parameters; determining the formula for calculating the volume shift of the oil-water interface; determining the formula for solving the current oil-water interface depth; and obtaining multiple V values. n / V2 value; calculate each V n / V2 value and Q n The difference between / Q2 values ​​yields the current oil-water interface depth H. n The method for calculating the oil-water interface depth in developed edge-bottom water reservoirs provided by this invention has the following beneficial effects: it helps to gain a clearer understanding of the current reservoir characteristics, elevating the understanding from qualitative to quantitative calculation in practical work, guiding the quantitative identification of strongly water-flooded areas and remaining oil-rich areas in the reservoir, and serving as the basis for the next step of rational and efficient reservoir adjustment and development, guiding the deployment of development plans, and helping to further improve reservoir recovery. Since edge-bottom water reservoirs are commonly developed in oilfields worldwide, this method also has high potential for widespread application.