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1192 results about "Reservoir water" patented technology

Multiple-effect pollute-removing water purification agent and use method thereof

The invention relates to a multi-effect pollution removal purifying agent and a method for applying the same. The purifying agent is complexly formed by a strong oxidant, an effective adsorbent and an assistant medicament by a weight percentage of strong oxidant 10-80%, effective adsorbent 10-70% and assistant medicament 5-50%. The surface water treatment process of using multi-effect pollution removal purifying agent of the invention comparing with the common flocculants has the following advantages: effectively improving the turbidity removal ratio, increasing the flcos formation amount and alum blossom density for the difficult coagulated surface water, improving the deposition efficiency, oxidizing and removing the organic matters in the water, eliminating the chroma and odor caused by the pollution, increasing the effluent conventional indexes, obviously improving the indexes such as oxygen consumption and ammonia nitrogen, wherein the removal rate of oxygen consumption and ammonia nitrogen can reach 25-60%, the removal rate of small organic molecules, benzenes and phenols can reach more than 80%, playing an obvious roll for the algae inactivation of lake water and reservoir water which are serious eutrophic, improving the algae removal efficiency of the deposition and filtration technologies with an algae removal rate of 80-90%, improving the coagulation efficiency, reducing 20-30% of the common flocculant dosage, effectively adsorbing the codeposition heavy-metal ion. The adding equipment of the invention is easy and convenient to use with little investment and fast effect.
Owner:南通立源水业科技发展有限公司

All-weather clean energy comprehensive electricity generating and energy saving method and facility manufacturing method thereof

The invention discloses an all-weather clean energy comprehensive electricity generating and energy saving method and a facility manufacturing method. In ten inventions, having at least one identical or corresponding specific technical characteristic and related to the total inventive concept, of solar gallery buildings, through graphene series facilities under solar gallery buildings, in a land field, a zero-carbon environment-friendly safe type raft-shaped basic-framed-tube-structured huge building group of a universal wind energy tower shape is established and new energy automobiles and trains are manufactured, wherein cheap wind power solids are established, photoelectric benzene expansion optical fibers are manufactured, lightning is utilized firstly for supplying power externally, various spaces are shared through building three-dimensional afforesting, and three-dimensional energy collection is achieved; in a water field, deep water self-floating buildings of a super steel concrete frame-tube structure (preferably, complete steel plates are adopted) are built, the deep water self-floating buildings are connected in series to form a global ocean water and electricity and agriculture and forestry extraction traffic network and a large lake and reservoir water and electricity and agriculture and forestry dredging dam water level traffic network, wherein the deep water automatic floating buildings are free of influences of earthquakes, tsunamis and wars, the Red Cross can rescue people in all-weather conditions; in a space field, multiple receiving and transmitting solar towers are first established on the equator of the earth and the equator of the moon, the receiving and transmitting solar towers are connected in series to operate in a timed mode in the specific direction and transmit power to the whole world through graphene cables which are all packaged with colored insulating films.
Owner:熊凌云 +6

Applications of waste gas injection into natural gas reservoirs

Natural gas is produced from a reservoir above a bitumen reserve with minimal or no impact on concurrent or subsequent production of bitumen recovery techniques including SAGD. Greenhouse benefits over and above the benefits of coincidental recovery are available through the injection of waste gas containing carbon dioxide for maintaining pressure in the gas reservoir while producing natural gas. Carbon dioxide separates out of the waste gas through preferential absorption in connate or aquifer water, with the result that carbon dioxide is thereby both retarded from flowing to the natural gas production well and effectively sequestered in the reservoir water. Additional advantage is achieved wherein water influx at production wells can be managed and trapped gas can be recovered.
Owner:BEAUVERT GAS SERVICES

Fracture-vug type oil reservoir water-flooding development effect evaluation method

The invention provides a fracture-vug type oil reservoir water-flooding development effect evaluation method. The fracture-vug type oil reservoir water-flooding development effect evaluation method comprises the steps that fracture-vug units to be evaluated are divided into a plurality of injection and production well sets; the well control coefficient of each injection and production well set is calculated, and the well control effect interval of each well set is determined combined with a corresponding preset well control coefficient index; the water-flooding recovery efficiency and the oil exchange rate of per ton water of each injection and production well set are calculated, and the development effect interval of each well set is determined combined with a corresponding preset development coefficient index; the cumulative water content and the water storage rate of each injection and production well set are calculated, the judging that whether water channeling exists or not is performed according to the cumulative water content, a water storage effect interval is determined combined with a preset water storage rate index; the non-dimensional flexible yield ratio, the single reservoir pressure drop and the artificial water-flooding index of each injection and production well set are calculated, the natural energy interval of each well set is determined combined with a corresponding preset natural energy index, a water-flooding effect interval is determined combined with a preset artificial water-flooding index. The fracture-cavern type oil reservoir water-flooding development effect evaluation method fully reflects the water injection effect of the injection and production well sets and the reason of achieving the effects, and therefore the foundation and the basis and the pertinence of the provided adjustment measure are better achieved.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Water reservoir pressure vessel

Refrigeration devices that have a water dispensing system to dispense water to an exterior water dispenser from a water supply line have need of a water vessel for storing water under pressure within the refrigeration device until dispensed. The water vessel has an inlet for receiving water from the water supply line and an outlet for dispensing water to the exterior water dispenser. A plurality of pressure resistant walls are formed between the inlet and the outlet to form an internal volume to reservoir water within the water vessel. The water vessel is constructed to reservoir water within the vessel under hydrostatic pressure from the water supply line until dispensed through the outlet when requested by the exterior water dispenser and / or the icemaker.
Owner:WHIRLPOOL CORP

Water shutoff agent applicable to high-temperature high-salt oil reservoir water shutoff profile control

The invention relates to a water shutoff agent applicable to high-temperature high-salt oil reservoir water shutoff profile control. The water shutoff agent consists of a main agent, a cross-linking agent, a stabilizing agent and water, wherein the main agent is sulfonated tannin or sodium humate; the cross-linking agent is the combination of an aldehyde cross-linking agent and a phenolic cross-linking agent; and the stabilizing agent is sodium silicate and non-ionic polyacrylamide. The water shutoff agent applicable to the high-temperature high-salt oil reservoir water shutoff profile control provided by the invention is applicable to the oil reservoir water shutoff profile control at the temperature of 90 to 150 DEG C and with the mineralization degree of greater than 2.0*10<5> mg / L; the gelation time is between 5 to 28 hours; and the strength of the formed gel is 0.060 to 0.085 MPa. The water shutoff agent has high integrity; and the plugging ratio to a rock core can be over 92 percent.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1

Experimental test method for gas reservoir reverse imbibition water blocking damage evaluation under high-temperature and high-pressure condition

The invention discloses an experimental test method for gas reservoir reverse imbibition water blocking damage evaluation under a high-temperature and high-pressure condition. The experimental test method is completed through a water blocking effect experimental measuring device. The experimental test method comprises the steps that firstly, a core is washed and dried to be placed into a core holding unit; secondly, the core is vacuumized, displacement pressure is increased to formation pressure Pf, and formation water is injected into the core under constant pressure; thirdly, the temperature is raised to the formation temperature T0; fourthly, nitrogen is injected into the core, displacement is carried out until the liquid level of a water measuring meter at the core outlet end does not change, and gas phase permeability K1 is calculated; fifthly, formation water is injected into the core until no gas is discharged out of the core outlet end; sixthly, secondary gas driving water is carried out on the core, displacement is carried out until the liquid level of the water measuring meter at the core outlet end does not change, and gas phase permeability K2 is calculated; seventhly, the damage degree of water blocking damage to the gas phase permeability is determined. The experimental test method conforms to the actual gas reservoir developing process, a reasonable testing method is provided for reservoir water blocking damage measuring evaluation, and the experimental test method has wide market prospects.
Owner:SHANGHAI BRANCH CHINA OILFIELD SERVICES +1

Single serve beverage dispensing system including an ionizer

There is provided a single serve beverage dispensing system that includes a single serve beverage capsule and a dispenser. The capsule includes a housing, an inlet, a mixing chamber, and an outlet. The beverage media is disposed within the mixing chamber. The dispenser includes a water reservoir sized and configured to retain reservoir water, an ionizer sized and configured produce alkaline water and acidic water from the reservoir water from the water reservoir, a pump for pumping reservoir water from the water reservoir to the ionizer, an alkaline water reservoir in fluid communication with the ionizer sized and configured to retain alkaline water, a mixing fixture sized and configured to receive the capsule, and a valve sized and configured to release a single serve amount of alkaline water from the alkaline water reservoir to the mixing fixture and through the capsule. A method of dispensing is also provided.
Owner:PROVIDENCE ENTERPRISE LLC

Deep profile control method for fractured oil reservoir

The invention relates to a deep profile control method for a fractured oil reservoir. By the method, the recovery ratio of crude oil can be increased. Four sections of plugs are provided for plugging different types of fluid-channeling channels, wherein in the first section of plug, a high-strength solidification system is used for plugging fracture; in the second section of plug, inorganic gel is used for plugging microfracture or large pores; in the third section of plug, a water drive flow direction changing agent and weak gel are used for further filling the fracture and the pores so as to displace residual oil in the pores; and in the fourth section of plug: a strong gel YQY plugging agent is used for plugging the fracture near the wellbore. By the method, the problem that the oil well is flooded by water caused by the fracture of the fractured oil reservoir water injection well can be effectively solved; the water absorption condition of a storage layer is changed; the utilization ratio of the injected water is increased; the swept volume is enlarged; and the oil displacement efficiency is improved finally.
Owner:PETROCHINA CO LTD

Method for quantificationally predicting sandstone reservoir fluid saturation by combining well and seism

The invention discloses a method for quantificationally predicting sandstone reservoir fluid saturation by combining a well and seism in geophysical prospecting for petroleum. The method comprises the following steps of: acquiring and processing seismic data and log data to obtain each parameter curve; respectively determining the relationships among the shale content, the porosity and an elastic parameter of the well; establishing prediction models of the shale content and the porosity; calculating a pore volume modulus and a dry rock volume modulus to establish a modulus prediction model; establishing an effective reservoir water saturation prediction model; performing prestack seismic inversion by utilizing prestack seismic trace gathers and the log data to obtain an inversion data volume of each elastic parameter; calculating the dry rock volume modulus to solve the pore volume modulus by the obtained elastic inversion volume; and solving the water saturation by using the pore volume modulus. In the method, prestack seismic data and the log data are fully utilized for quantificationally predicting reservoir saturation; and good geological effects on predicting oil and gas saturation are achieved.
Owner:PETROCHINA CO LTD

Heterogeneous reservoir water injection commingling interlayer disturbance simulation system and detection method

InactiveCN103573264AHigh simulationThe process of achieving mutual interferenceBorehole/well accessoriesGraduated cylinderInjection port
The invention belongs to the field of physical experiment equipment of petroleum and natural gas exploitation, and particularly relates to a heterogeneous reservoir water injection commingling interlayer disturbance simulation system. The system comprises a constant-flux pump, a plurality of containers, a five-way valve, a core holding unit, an X-ray tube, a detector and a data processing and imaging system. The constant-flux pump is connected with the inlet of each container through pipelines; the inlet of the five-way valve is respectively connected with the outlet of each container through pipelines. A left sealing cover of the core holding unit is provided with an injection port, the right sealing cover of the core holding unit is provided with an output port, the inner sides of the left sealing cover and the right sealing cover are sequentially provided with a core end cap rubber mat, a core end cap and a sealing rubber mat from outside to inside, a plurality of circular holes are formed in the core end cap rubber mat, and the core end cap and the sealing rubber mat are provided with a plurality of layer chambers. A plurality of layers of heterogeneous reservoir slab models are arranged in a sealing rubber sleeve. The outlet of the five-way valve is connected with the injection port, and fluid passes through the output port and enters a measuring cylinder. The heterogeneous reservoir water injection commingling layer disturbance simulation system can reflect layer disturbance degree through the composition and size of liquid amount at the output end, and visualized analysis is achieved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Device and method for landslide model test

The invention discloses a device for a landslide model test. The device comprises a landslide model, a model box, a rainfall system, a water supply system, a water recovery system, a reservoir water level rising and falling system, a landslide model external data acquisition device and a landslide model internal data acquisition device, wherein the rainfall system, the water supply system, the reservoir water level rising and falling system, the landslide model external data acquisition device and the landslide model internal data acquisition device are connected with an integrated control platform; the rainfall system is arranged above the model box; the water supply system is arranged above the rainfall system; the water recovery system is arranged under the model box; the water recovery system is connected with the water supply system through a water supply pipe; the reservoir water level rising and falling system is arranged on the lateral side of the model box and is communicated with the model box through a water supply and drainage hole with a filter net. The invention also provides a method for the landslide model test. The device can be used for simulating and realizing the water level change and rainfall intensity within a short period of time; the device can be comprehensively automatically controlled; the precision of the device for the landslide model test can be increased; the method is simple and can be used for increasing the efficiency of the landslide model test.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Transparent Ice Maker

InactiveUS20150107275A1Reduced surface area to volume ratioEasy to shapeLighting and heating apparatusFood processingLiquid waterEngineering
The present invention provides an apparatus and method for producing substantially clear ice in a variety of desired shapes. An insulated ice mold form containing one or more mold cells is suspended over a liquid water reservoir contained in an insulated container. Each ice mold cell is exposed to freezing air resulting in the formation of ice in each mold cell with ice formation progressing from the top to the bottom of each ice mold cell. A liquid water reservoir below each ice mold cell serves as an impurity sink into which impurities and gases are driven as ice crystals form in each ice mold cell and as a heat sink to substantially arrest ice shape growth beyond the bottom of each ice mold cell at or near the ice-reservoir water interface.
Owner:PAPALIA ROCCO

Large-sized landslide intelligent model testing system under combined effect of rainfall and reservoir water

The invention discloses a large-sized landslide intelligent model testing system under a combined effect of rainfall and reservoir water. The system comprises a flexible slope testing groove and a distributed spray rainfall simulation device, wherein a slope hydraulic lifting device comprises a plurality of groups of electric hydraulic jacks. The flexible slop structure in the flexible slop testing groove mainly comprises two layers of high-strength steel wire grids and a high-strength geotechnical cloth sandwiched by the two layers of high-strength steel wire grids; the geotechnical cloth is prepared from polymer expressed by a formula I; Mw of the polymer in the formula I is 5.8*10<4>, and the molecular weight distribution index is 1.298; the distributed spray rainfall simulation device comprises a distributed spray rainfall device and a windshield structure; the rainfall device is formed by combining upper and lower layers of spray pipes of different diameters and sprinklers corresponding to the diameters of nozzles; the windshield structure is arranged below the rainfall device, can be fixedly arranged on the inner side of a test rack and is prepared from the polymer shown by a formula II; Mw of the high molecular polymer is 5.115*10<4>, and the molecular weight distribution index is 1.761.
Owner:TSINGHUA UNIV

Device and method for testing influence of water level fluctuations on stability of talus slope containing underlying ice layer

The invention relates to a physical model test model and test method of reservoir water level fluctuations on deformation of talus slope containing an underlying ice layer. The physical model test model comprises a transparent model test box with an opening at the top, wherein concrete bed rock is arranged in the transparent model test box, a faucet is arranged at the horizontal lowest end of the upper surface of the concrete bed rock, a talus slope model is arranged on the upper surface of the concrete bed rock, a plurality of electric heating pieces and a plurality of refrigerating sheets are arranged between the talus slope model and the concrete bed rock, a loading device and soil pressure boxes are arranged at the horizontal highest end of the concrete bed rock, multiple dial gages are arranged on the upper surface of the talus slope model, and a high-speed camera is arranged outside the transparent model test box. Since water level fluctuations can influence the talus slope containing the underlying ice layer, a simulation test is performed by arranging the concrete bed rock and the talus slope model in the transparent model test box through the soil pressure boxes and the dial gages used for measurement.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN) +1

Method for modeling predictable physical model for fractured anisotropic oil reservoir water flooding development

InactiveCN101942991ALay the theoretical foundationAchieve similarityBorehole/well accessoriesPhysical modelModel parameters
The invention discloses a method for modeling a predictable physical model for fractured anisotropic oil reservoir water flooding development, and the method comprises the following steps: (a) establishing similarity criteria for simulating the fractured oil reservoir development according to characteristics of the process of fractured oil reservoir water flooding oil development and by utilizing theories of seepage mechanics and similarity analysis, wherein the similarity criteria comprise similarities in shape and space, shaft geometry, physical properties of rock, oil-water viscosity, gravity-pressure, matrix and fracture movable oil amount ratio, oil content distribution in matrix, matrix imbibition and fracture displacement characteristic time, imbibition intensity distribution and time process; (b) realizing the similarity criteria and a design method of model parameters; and (c) modeling an oil reservoir macroscopic physical model which meets the multiple similarities so as to comprehensively simulate and predict seepage characteristics and the development process of real fractured oil reservoir. A predictable physical simulation similarity criterion system for the fractured anisotropic oil reservoir is established, has comprehensive functions and is easy to realize.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Side slope landslide teaching demonstration device and experiment method

The invention discloses a side slope landslide teaching demonstration device and an experiment method. The side slope landslide teaching demonstration device can utilize the prior art to simulate landslide under various working conditions like rainfall infiltration, side slope upper-portion loading, earthquake dynamic load, upper-portion reservoir water storage, and a system comprehensively demonstrates a side slope landslide damaging mechanism; progressive sliding of side slopes different in gradient, compactness and soil quality is demonstrated; grid lines of an observing area on an experiment groove are utilized to record landslide range of the side slopes, calculate size of landslide, analyze difference between an observing result and a calculating result and comparing difference between an experimental and a theoretical result. The side slope landslide teaching demonstration device aims at demonstrating basic phenomena of soil mechanics, revealing mechanical principles in the soil mechanics and comparing practicability of landslide methods like a bishop's slice method and Sweden slice method so as to help teachers to complete teaching tasks to students in class.
Owner:HOHAI UNIV

A lake reservoir water environment pollution restoration system

Disclosed in the present invention are a lake reservoir water environment pollution restoration, comprising an ecological floating bed floating on the surface of lake reservoir water, a plurality of planting beds arranged on the ecological floating bed, a plurality of adsorption nets and reaction beds fixed at the bottom of the ecological floating bed, and a plurality of algae grilles and aeration pipes arranged at the bottom of lake reservoir water, the aeration pipes being connected with an air pump through a vent pipe, a plurality of aeration holes being arranged on the aeration pipes, at least one inflation bag being fixed on the algae grilles, the at least one inflation bag being connected with an air delivery pipe through an inflation pipe, and the input end of the inflation pipe being connected with a second output end of the air pump. The lake reservoir water environment pollution restoration system can achieve all-directional multi-level restoration of water bodies in lake reservoirs, as well as water-surface, in-water and water-bottom multi-level purification, with high restoration efficiency and convenience in maintenance.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Three-dimensional artificial rainfall reservoir type landslide physical model testing equipment

The invention provides three-dimensional artificial rainfall reservoir type landslide physical model testing equipment. The equipment comprises a box body, wherein the periphery and the bottom of the box body are sealed, the top of the box body is provided with an artificial rainfall system; a landslide bed is arranged in the box body; a landslide body is arranged on the landslide bed; the top end of the landslide bed is provided with a rear edge water complementing system for simulating ground water flow; a physical quantity test and control system is arranged in the landslide body; a TDR water testing system is arranged on one surface of the landslide body; a reservoir water level control system for controlling the water level in right front of the landslide body is arranged outside the box body; an exit gate is also arranged on the box body in right front of the landslide body. The testing platform system has the high integration and automation degrees, can be used for deformation damage model tests of a landslide under the action of a plurality of factors, and can perform the three-dimensional landslide physical simulation test research on landslide stability characteristic with the consideration of rainfall, reservoir water level rising and falling and coupling functions.
Owner:CHINA THREE GORGES UNIV

Remote supervising system and method for city secondary water supply quality safety

The invention discloses a remote supervising system and method for city secondary water supply quality safety. By the aid of the remote supervising system and method, centralized and unified management of all supervised areas can be realized. The system comprises wireless water quality monitoring sensors, water quality monitoring base stations, a WEB system server, a GSM modem module and client computers, wherein the wireless water quality monitoring sensors communicate with the water quality monitoring base stations through a wireless network, the water quality monitoring base stations are in remote communication with the WEB system server through the Internet or a GPRS (general packet radio service) network, the GSM modem module is connected with the WEB system server through a serial port, and the WEB system server is connected with the multiple client computers through the Internet. With the adoption of the remote supervising system and method, all running information in the monitored areas can be issued to users through the Internet, and real-time supervision on different scales of secondary water supply reservoir water quality in different regions is realized, so that secondary water supply safety and water quality supervision timeliness are further improved.
Owner:ANHUI XINHE DEFENSE TECH JOINT CO LTD

Low-permeability oil reservoir water flooding wave and coefficient evaluation method

The embodiment of the invention provides a low-permeability oil reservoir water flooding wave and coefficient evaluation method, which comprises a longitudinal wave and coefficient evaluation method and a plane wave and coefficient evaluation method, wherein the longitudinal wave and coefficient evaluation method comprises the following steps that: longitudinal wave and coefficient main control factors of a low-permeability oil reservoir are determined; a sand body communication coefficient is introduced for modifying longitudinal waves and a prediction formula; sensitivity analysis is carried out; and a plate is drawn, so that the looking-up is convenient. The plane wave and coefficient evaluation method comprises the following steps that: through coordinate conversion, the permeability of the low-permeability oil reservoir during anisotropy is converted into the permeability during isotropy; the water flooding wave and region area is determined by considering the anisotropy and the starting pressure gradient; the well control region area is determined, a ratio of the water flooding wave and region area to the well control region area is determined to be the plane wave and coefficient of the low-permeability oil reservoir. The embodiment of the invention realizes the water flooding wave and coefficient evaluation of the low-permeability oil reservoir, and the basis and the regulating direction are provided for low-permeability water flooding yield improvement.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Method and system for real-time automatic distribution of gate opening of cascade hydropower station

The invention discloses a method and system for real-time automatic distribution of gate opening of a cascade hydropower station. The system includes a collection terminal, database server, application server, process library, policy library, information publishing cat, and remote control system, a collection element, transmission element, simulation element, and constraint element are arranged onthe application server and are connected with the database server, process library and information publishing cat. The invention can adjust the gate in advance, at the same time, the opening degree of each gate of the preset dispatching strategy is given by using the subsection step-size mutation algorithm, In addition to real-time monitoring of reservoir water level, effectively shorten the timeof making gate opening, A good balance has been struck between flood control and flood resource utilization, In order to reduce the working intensity of the operators and accurately control the waterlevel of the reservoir, the calculation process is simple and quick, and the follow-up effect of cascade flood control storage capacity under different flood discharge is taken into account, so as tomeet the needs of the actual operation of the power station for the calculation result accuracy, safety, real-time performance and economy.
Owner:DADU RIVER HYDROPOWER DEV

Method for constructing water fluctuation belt vegetations of Three Gorges reservoir by vertical arrangement of arbor-bush-grass

The invention discloses a method for constructing water fluctuation belt vegetations of the Three Gorges reservoir by the vertical arrangement of arbor-bush-grass, and relates to a method for constructing reservoir water fluctuation belt vegetations. The method comprises the followings steps of: 1, selecting arbor-bush-grass species which are suitable to be grown in the water fluctuation belts of the Three Gorges reservoir as plant materials; 2, selecting abandoned farmlands or areas where the soil layer is thicker and the terrain is gentle in the water fluctuation belts as a planting base; 3, after the water in the reservoir is receded in spring, cleaning residual vegetations, and flattening the lands; 4, at an altitudinal gradient, from bottom to top, planting annual plants, perennial plants, bushes and arbors in sequence; and 5, managing the vegetations according to the common method. In the method, the vegetations are planted on the suitable areas in the water fluctuation belts, so that the soil corrosion is controlled, the landscape is improved, and the ecological benefits of the water fluctuation belts are improved; the large-scaled popularization of the method is convenient; and the method is suitable to be used for not only constructing the vegetations on the water fluctuation belts of the Three Gorges reservoir, but also beautifying the landscape and re-constructing the vegetations in the reservoir water fluctuation belts in regions where all or a part of 12 species are suitable to be grown.
Owner:WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI

Optimal scheduling method of nonlinear-programming cascade reservoir group based on GAMS (general algebraic modeling system)

InactiveCN102682409AAlleviate or avoid the "curse of dimensionality" problemData processing applicationsSystems intergating technologiesOptimal schedulingReservoir water
The invention relates to an optimal scheduling method of a nonlinear-programming cascade reservoir group based on a GAMS (general algebraic modeling system). The method comprises the following steps of: establishing an objective function; considering constraint conditions such as reservoir water balance constraints, related engineering constraints, related power generation constraints, other policy constraints, maximum constraint on minimum output, maximum constraints on guaranteed output, minimum constraints on differences between initial and final reservoir capacities in transition periods, and maximum constraints on assurance rates; and solving. According to the invention, runoff processes occurring in the past, artificially-generated runoff sequences and future runoff forecast processes are all taken as deterministic input processes of reservoir operation scheduling. The runoff description method can be used for intuitionally and visually reflecting the continuity and periodicity of runoff changes in a certain period, and indirectly reflecting the statistical properties of runoffs. According to given runoff data, the operation of solving is performed by virtue of a deterministic optimization model to obtain an ideal optimal operation process; and then, according to some criterion, a scheduling discipline function is identified from the optimal operation process and is used for guiding the operation of a hydropower system.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1

Method for monitoring and processing reservoir bank slope deformation based on InSAR image data

The invention discloses a method for monitoring and processing the reservoir bank slope deformation based on InSAR image data. The method is characterized in that on the basis of acquiring the InSAR data of a reservoir bank slope of a drainage basin, the deformation information of a monitoring area is extracted by means of the SqueeSAR technology and differential interference processing, abnormalvalue identification is performed for the acquired deformation time sequence to define unstable regions appearing within the monitoring range; secondly, two factors of a reservoir water level and therainfall are considered, in combination with relevant geological conditions, through the correlation analysis method, causes of deformation abnormality of the slope are determined and explained; and lastly, the monitoring data and related analysis are reflected in a monitoring report through graphs, tables and the like. Compared with the prior art, the method is advantaged in that continuous and semi-automatic monitoring of the large-scale and high-precision reservoir bank slope of the drainage basin can be realized, and deformation abnormality of the slope can be more reasonably predicted.
Owner:WUHAN UNIV

Physical simulation test device for landslides under rainfall and reservoir water level coupling effects

PendingCN109283320AReal-time monitoring of physical parametersSimple structureEarth material testingNumerical controlWater filter
The invention discloses a physical simulation test device for landslides under rainfall and reservoir water level coupling effects. The physical simulation test device comprises an artificial rainfallsimulation unit, a model box unit and a monitoring unit; the rainfall unit is provided with a high-power water pump, a water storage well, a console, a desilting basin, a water returning tank and a numerical control water dividing valve; the periphery and the bottom of the model box unit are sealed, water control valves are arranged at the front end of the model box unit, heavy casters with brakes are arranged at the bottom of the model box unit, and a sliding bed is arranged in a box; a sliding belt is arranged on the sliding bed, a sliding body is arranged on the sliding belt, a water filter pipe is arranged at the rear edge of the sliding body, sensors are arranged on the sliding body and the sliding belt, and the front edge of the box is provided with liquid level meter, water inlet pipes and the water control valves; and the monitoring unit comprises a camera, a physical quantity sensor and a data acquisition and processing system. The physical simulation test device is used forsimulating deformation failure model tests of the landslides under multiple working conditions, the physical quantity parameters of different parts of the landslides can be monitored in real time, andthe landslides under the coupling effects of multi-parameters such as the rainfall and reservoir water level can be experimented and researched.
Owner:NANCHANG INST OF TECH

Method for determining stability of reservoir bank slope based on reservoir water level and displacement

The invention belongs to the technical field of slope stability diction and slope disaster monitoring and precaution, and particularly relates to a method for detecting a displacement and reservoir water level coupling power prediction parameter and stability of a reservoir type slope geological disaster. According to the basic principle of damage mechanics, a skid resistance force and sliding force loading power parameter on the slope sliding face and a slope displacement response parameter are organically coupled, and the new method for determining the stability of the reservoir type slope is disclosed according to the organic coupling. The method can effectively overcome erroneous judgment or misjudgment caused by errors of slope physical and mechanics parameters, boundary conditions and the like in a traditional ultimate equilibrium mechanical evaluation method and meanwhile solves the problems that a traditional displacement time sequence prediction method cannot describe a slope power action mechanism in a quantitative mode and cannot stably unify instability criterion. The clear criterion is adopted to specifically express the stability state of the slope in different stages of the reservoir, and effective basis is provided for slope prediction forecast and precaution treatment.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Distributed fiber optic sensing technology and system for monitoring of deformation of high arch dam

The invention discloses a distributed fiber optic sensing technology and a system for monitoring of deformation of a high arch dam, which relate to the field of crossing of a dam safety monitoring technology and a fiber optic sensing technology and are used for overcoming the defect of a conventional means for the monitoring of the deformation of the high arch dam and filling the blank of using distributed fiber optic sensing for the monitoring of the deformation of a dome dam. Aiming at the characteristics and the difficulties of the dome dam, two kinds of unique curved fiber optic packaging structures, namely, fiber optic monitoring panels in a weakly curved beam type and a micro-bending beam type, are provided. Based on error analysis and curved beam height control-camber beam segmentation construction, excellent performance, high reliability, long service life, convenience and practicability of monitoring of fiber optic deformation are ensured. A convenient and practical layout installation mode in an arch dam and a gallery, a vertical shaft and a footrill of a dam foundation is provided, so that online remote metering on multi-dimensional and large-scale time-space broad coverage of three components (radial horizontal displacement, tangential horizontal displacement and vertical displacement) of internal deformation of the arch dam, the dam foundation and a dam abutment is realized. An optical demodulation instrument is multifunctional and can be used for metering concrete temperature, reservoir water temperature, slit level in front of a dam, reservoir sedimentation and the like.
Owner:SICHUAN UNIV

Measuring method for inversing reservoir feeding flow procedures

The invention discloses a measuring method for inversing reservoir feeding flow procedure, comprising the steps: step I, performing observation and sampling to obtain the information of reservoir water level and discharging flow via a water level in front of the reservoir dam; step II, building a data assimilative state model and an observation model according to the information obtained in the step I; and step III, ascertaining the reservoir feeding flow procedures by a data assimilation algorithm according to the state model and the observation model obtained in the step II. The method disclosed by the invention can be used for ascertaining the reservoir feeding flow; compared with the prior art, the method disclosed by the invention can ensure smooth reservoir feeding flow, and avoid exceptional data like negative values and the like of the flow; the method also can supply the reservoir feeding flow procedure of minute time step, so as to reflect the flood peak information more truthfully; in addition, the method disclosed by the invention has low precision requirement to the water level gauge on the reservoir dam, so that the building and management costs of water level measurement stations are saved.
Owner:WUHAN UNIV

Method for water-flooding abandoned condensate gas reservoirs

The invention discloses a method for water-flooding abandoned condensate gas reservoirs. The method includes performing full fluid PVT (pressure-volume-temperature) analysis first to complete long-core displacement experimental analysis. The long-core displacement experiment mainly includes the steps: selecting core samples on site; testing basic physical-property parameters of cores; splicing the core samples into a long core for displacement experiment, performing natural energy failure experiment, performing displacement in flooding, acquiring recovery rate of water-displacing condensate oil and condensate gas under different conditions according to the experiments, and comparing to determine the waterflood pattern which is most satisfactory to the requirement of increasing recovery rate of condensate gas reservoirs on site; and compiling a condensate gas reservoir water-flooding scheme according to indoor experiment results. The problem that existing depletion development of condensate oil-gas reservoirs is fast in energy decline, causes underground condensate oil loss and is low in production level is solved. Reasonable water-flooding speeds and water-flooding modes are optimally selected by the method and used for water flooding of abandoned condensate gas reservoirs, so that recovery rate of condensate oil-gas reservoirs is effectively increased.
Owner:PETROCHINA CO LTD
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