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180 results about "Potential evaluation" patented technology

Method for evaluating demand response potential of electric vehicle cluster

The invention discloses an electric vehicle cluster demand response potential evaluation method, comprising the following steps: firstly, a time-dependent dynamic traffic network model is establishedaccording to the road network topology information and the time-varying regional traffic information; Secondly, according to the battery capacity, mileage and other vehicle information, charging and discharging power level, charging and discharging efficiency and other facility parameters, a single electric vehicle charging model is established. Then, based on the data of residents' trip survey, the travel chain is constructed and the travel route is planned with 'the least travel time'. Combined with the travel destination of the charge and discharge demand judgment, the electric vehicle travel time and space distribution information is obtained. The invention proposes a user participation response mechanism considering three factors of the remaining travel time at the current time, the remaining battery charge state and the power price compensation, calculates the real-time response degree of the electric vehicle and the demand response potential of the electric vehicle cluster by using a fuzzy algorithm, and provides a reference for formulating a grid control strategy and carrying out the demand response.
Owner:GUANGZHOU COLLEGE OF SOUTH CHINA UNIV OF TECH

Numerical simulation method taking dynamic changes of seepage parameter of water-drive reservoir into consideration

The invention discloses a numerical simulation method taking dynamic changes of a seepage parameter of a water-drive reservoir into consideration. The numerical simulation method comprises the following steps: S1, establishing a numerical simulation model of the reservoir, and in an iterative computation process, firstly performing computing and solving to obtain a pressure and a saturation data field of each grid block; S2, computing a water-phase flow of each grid block and computing a directional surface flux of each grid block and a total surface flux to obtain data fields of the directional surface fluxes and the total surface flux; S3, establishing a change relationship model of a reservoir permeability along with the directional face fluxes and updating a permeability data field; S4, establishing a change relationship model of a reservoir relative permeability curve along with the total face flux and re-calibrating an endpoint value of the relative permeability curve; and S5, obtaining modified reservoir permeability and relative permeability curves for circular calculation of next time step. The numerical simulation method is capable of providing theoretical support for accurately predicting remaining oil distribution, quantitatively computing movable remaining oil, making an oilfield development plane and directing oilfield digging potential evaluation.
Owner:CHINA NAT OFFSHORE OIL CORP +2

Method for judging gas source of high-to-over mature natural gas

ActiveCN104749322AAvoidance contains less information about the causesAvoid problems such as the failure of biomarker indicators in high-over-mature source rocksMaterial analysisEntry pointTest analysis
The invention provides a method for judging a gas source of high-to-over mature natural gas. The method comprises the following steps: testing and analyzing geochemistry characteristics of natural gas, reservoir stratum asphalt and a hydrocarbon source rock, and establishing a natural gas-reservoir stratum asphalt-hydrocarbon source rock factor relation; and judging the gas source of the high-to-over mature natural gas. According to the method for judging the gas source of the high-to-over mature natural gas, the reservoir stratum asphalt is taken as a core entry point and the stored asphalt is used as a bond and a bridge for connecting gas and a source, so that the natural gas-reservoir stratum asphalt-hydrocarbon source rock three-end-member factor relation is established, and the comprehensive judgment of the gas source of the high-to-over mature natural gas is realized; and the situation that a corresponding available application does not exist is solved, and the actual production requirements on comparison of the gas source of the high-to-over mature natural gas, recovery of a complicated reservoir forming process, potential evaluation of high-to-over mature region resources, old marine facies seismic exploration and district selection and the like in superimposed basin deep-layer oil-gas exploration are met.
Owner:PETROCHINA CO LTD

Location predication method for deep favorable mineralization part of sandstone-type uranium ore

The invention belongs to the technical field of uranium metallogenic prediction and metallogenic potential evaluation in basins, and in particular relates to a technology for locating and predicting favorable ore-forming sites in the deep part of sandstone-type uranium deposits. The method comprises the following steps: step 1 integrates regional strata data, and clarifies the main prospecting target horizons of sandstone-type uranium deposits; step 2 selects maps and delineates depth ranges; step 3 delineates favorable sedimentary facies belts; step 4 combines step 2 and step 3 The extracted regional stratification positions are superimposed, and the stratification positions are numbered; step 5 judges the tectonic transformation experienced by the delineated area; step 6 judges the groundwater recharge-diameter-drainage system of the delineated area; step 7 synthesizes Step 4, step 5, and step 6 judge the results, and finally delineate favorable mineralization sites. The invention solves the technical problems of long time consumption and high cost in the existing prediction method, and can quickly, low-cost and high-efficiency locate and predict favorable mineralization positions of sandstone-type uranium deposits in deep basins.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Evaluation method for potential coefficient used to predict and forecast productivity of coalbed methane

An evaluation method for a potential coefficient used to predict and forecast productivity of coalbed methane, comprises the following steps: determining main controlling factors on a basis of coalbed methane well methane production mechanism analysis; using GIS powerful functions of data management and spatial analysis to establish a sub-thematic image of each main controlling factor; using an ANN to determine each main controlling factor's weight contribution on the productivity; and establishing a coalbed methane productivity potential coefficient evaluation model based on the coupled ANN and the GIS to perform partition and evaluation on the coalbed methane productivity potential coefficient. According to a result of ANN and GIS coupled coalbed methane productivity potential forecast evaluation effect, a coalbed methane productivity potential evaluation partition scheme is provided. Evaluation partition is preferably matched with actual situation, evaluation results are basically the same with analysis results of methane production geological conditions, and evaluation effect is ideal. The evaluation method provides significant technical basis for reasonable design and making of block drainage schemes, and fills the gap of insufficient practical and theoretical mutual complementary research.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Demand response benefit and potential evaluation method based on electricity price

InactiveCN104616082AEstimated responseRealize ex ante assessmentForecastingElectricity priceEngineering
The invention discloses a demand response benefit and potential evaluation method based on electricity price. The method includes the following steps: determining the number of users participating in a demand response project based on the electricity price after m years according to the set user growth rate alpha and the intelligent electricity meter implementation progress beta; calculating electric quantity of each user in unit time one day at the new electricity price according to a user response characteristic model; calculating the average electric quantity at ordinary time of the user at the new electricity price according to the daily electric quantity of the user; predicting the number of the users participating the project from the reference year and evaluating the requirement response benefit and potential of a power plant, a power grid, the users and the environment according to the user response degree. By means of the evaluation, the benefit and the demand response potential of the benefited parties are carefully analyzed after the demand response project based on the electricity price is implemented, the benefit evaluation value is quantized, and the method provides reference for planning and cost recovery of the demand response project, helps the government to make decisions, is favorable for well development of the demand response project in the country, and achieves good social benefit.
Owner:STATE GRID CORP OF CHINA +4

Method for evaluating reproduction potential of tight gas reservoir watered gas well

The invention belongs to the field of gas field development research, and particularly relates to a method for evaluating the reproduction potential of water-flooded gas wells in tight gas reservoirs, comprising the following steps: according to the geology and development characteristics of water-flooded gas wells in tight gas reservoirs, determining the production resumption target; using analytic hierarchy process Establish a hierarchical structure model for evaluating the resumption potential of different water-flooded gas wells using the method; use the hierarchical structure model to construct a judgment matrix and determine the weight of each evaluation factor; use the fuzzy mathematics comprehensive evaluation method to formulate the evaluation grading standards for each index, and establish Target gas well comprehensive evaluation transformation matrix. According to the weight of each evaluation factor and the comprehensive evaluation transformation matrix of the target gas well, the fuzzy mathematical comprehensive evaluation calculation model of the target gas well is determined, and the comprehensive evaluation value of the resumption potential of the water-flooded gas well is obtained, and the optimal resumption sequence of the gas well is determined. The invention can obtain the pros and cons of each evaluation factor and the comprehensive evaluation of the recovery potential of water-flooded gas wells, and provides a scientific and effective method for the recovery of water-flooded wells in tight gas reservoirs.
Owner:SINOPEC NORTH CHINA OIL & GAS CO

Geological carbon dioxide storage evaluating method

The invention relates to a geological carbon dioxide storage evaluating method. The geological carbon dioxide storage evaluating method comprises the following steps: S1, selecting a core sample, anddetermining the characteristics of the core sample; S2, pretreating the sample: cutting the core sample, and polishing the surface of the cut core sample; S3, performing an indoor water-rock simulation experiment on the core sample; S4, treating the core sample after the experiment to remove a solution after an experimental reaction; S5, analyzing and testing the core sample treated after the experiment; S6, carrying out a long-term numerical simulation experiment. According to the geological carbon dioxide storage evaluating method, the reaction path and the reaction process after an oil andgas reservoir is filled with CO2 are determined through the short-term indoor water-rock simulation experiment, and on this basis, storage quantity evaluation is performed through long-term numericalsimulation, so that a CO2 filling simulation process is closer to an actual large-scale carbon dioxide filling experiment, uncertainty of the storage quantity evaluation caused by speculation of the storage process after CO2 filling according to a typical chemical reaction equation is avoided, and the accuracy of the storage potential evaluation of an actual storage geological body is significantly improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Enterprise electric energy substitution potential evaluation method

The invention discloses an enterprise electric energy substitution potential evaluation method, and particularly relates to an evaluation method. At present, enterprise electric energy substitution potential evaluation always adopts a manual troubleshooting way, and a current customer manager has the disadvantages of big blindness, low visit paying efficiency and poor information integration and sharing ability in electric energy substitution enterprise troubleshooting. The method comprises the following steps that: carrying out index primary selection; carrying out index analysis; determiningan index; constructing an electric energy substitution enterprise potential model; and according to a determined electric energy substitution enterprise prediction model, outputting an electric energy substitution potential enterprise prediction result, and positioning a high electric energy substitution enterprise customer. By use of the technical scheme, energy utilization identification is taken as an entry point, the industry of equipment which has high energy consumption and uses more non electric energy is analyzed to position an electric energy substitution key mining industry, electricity utilization differences before and after enterprise electric energy substitution transformation is carried out are searched so as to accelerate that the troubleshooting work of the customer manager for enterprise electric energy substitution willing exhibits better pertinence, and an electric energy substitution troubleshooting success rate is improved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +2

Petroliferous basin analysis method based on fracture-uplift linkage

ActiveCN106324701AMentoring Potential EvaluationGood exploration resultsGeological measurementsSystems researchBiological activation
The invention discloses a petroliferous basin analysis method based on fracture-uplift linkage. The method includes the following steps that firstly, fracture-uplift binary basin control action analysis is conducted; secondly, resource potential evaluation and reservoir forming condition analysis are conducted; thirdly, reservoir forming main controlling factor analysis and favorable zone optimization are conducted. The method breaks through simplex fracture margin reservoir controlling research, is combined with the substrate activation uplift effect, fracture, uplift and pitting are brought into integrated research according to a fracture and uplift composite development region, inner cause mechanism between fracture and uplift and different time-space complex superimposition structure manifestation forms are discussed, and four fracture-uplift linkage structure cause modes are built. On the basis, a system researches structure characteristics, structure evolution, sediment migration and resource potential of Miaoxi pots under the fracture-uplift linkage mechanism, exploration potential evaluation of exploratory area edge pits of the Bohai Sea is carried out according to the positive coupling effect and system oil and gas migration and accumulation simulation in fracture and uplift linkage evolution, a beneficial exploration direction is pointed, and the exploration pace of edge cold area small pits is greatly promoted.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Evaluation method suitable for judging ancient river valley sandstone type uranium ore uranium source

The invention belongs to the technical field of uranium ore mineralization potential evaluation, and particularly discloses an evaluation method suitable for judging a sandstone type uranium ore uranium source in a basin. The evaluation method comprises the steps of: (1) collecting an ore-containing target layer sandstone sample; (2) selecting chippings zircon in the sample to prepare a zircon target; (3) testing the U-Pb isotope and U element content of zircon; (4) acquiring a zircon isotopic age histogram and a zircon U-Pb isotopic age and U content element diagram according to the U-Pb isotope and the U element content; (5) providing a source magmatic rock age range and geographical distribution characteristics for the ore-bearing target stratum sandstone according to the analysis in the step (4); (6) finding out the age range of the detritus zircon with the highest U content and particle number ratio according to the U-Pb isotopic age of the zircon and the U content element diagram, and determining a uranium source in a pre-enrichment stage in combination with the step (5); and (7) determining a uranium source in the mineralization stage according to the steps (5) and (6). Theevaluation method provided by the invention can be used for judging uranium sources in sedimentary diagenetic and mineralization action stages of the ore-bearing target layer.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Fixed-frequency air conditioner load aggregation demand response potential evaluation method and device and medium

The invention relates to a fixed-frequency air conditioner load aggregation demand response potential evaluation method and device and a medium. The method comprises the steps: establishing a cluster fixed-frequency air conditioner approximate aggregation model; calculating an indoor temperature initial adjustable margin and a user willingness degree influence factor of the fixed-frequency air conditioner user; according to the indoor temperature initial adjustable margin and the user willingness degree influence factor, calculating the actual elastic controlled temperature range of the fixed-frequency air conditioner load; obtaining a user controllability degree; and according to the cluster fixed-frequency air conditioner approximate aggregation model and the user controllability actual elastic controlled temperature range, establishing a fixed-frequency air conditioner load aggregation demand response potential evaluation model, and according to the model, calculating the fixed-frequency air conditioner load elastic aggregation response potential adopting temperature control under the direct load control mode. Compared with the prior art, the method gives consideration to multiple response potential influence factors, and is high in accuracy.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +2

Method for evaluating multi-level development potential of whole-loading oil field in high water-cut period based on improved QFD

The invention provides a method for evaluating multi-level development potential of whole-loading oil field in high water-cut period based on improved QFD. The core tool of the method is an evaluationhouse, which consists of nine parts, namely a development effect evaluation index matrix, a technical measure matrix, a development effect index and technical measure correlation matrix, a technicalmeasure first-level, second-level and third-level application potential matrix, and a first-level, second-level and third-level development potential matrix. The multi-level development potential of whole-loading oil field in high water-cut period after different technical measures are carried out can be analyzed. Compared with the numerical simulation, the method is simple and convenient: after the mutual correlation matrix is determined, the application potential of various levels of technical measures is evaluated, and the multi-level development potential of the target oil field can be calculated; at the same time, the method also realizes the development potential evaluation corresponding to the technical measures of different grades which are already applied in the local block and are applied in the same block and are to be applied in the test stage, and has higher reference value for the actual production of the mine field.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method and device for determining hydrocarbon expulsion efficiency of hydrocarbon source rock

The invention provides a method and a device for determining a hydrocarbon expulsion efficiency of a hydrocarbon source rock. The method comprises the steps of identifying and determining longitudinalhydrocarbon expulsion intervals of strong heterogeneous terrestrial hydrocarbon source rock stratum series according to core measured data and well logging data; according to the correlation betweenparameters, deriving a quadratic equation with one unknown on the hydrocarbon expulsion efficiency and determining the specific parameters required to solve the equation; according to the parameters such as the organic carbon content (TOC) of the hydrocarbon source rock, calculating numerical values of the specific parameters required by the equation; calculating the hydrocarbon expulsion efficiency KP of the hydrocarbon source rock according to the established quadratic equation with one unknown. According to the method, the simulation for complex hydrocarbon generation and expulsion processes is avoided; the method has the advantages of simple and intuitive principles, easy obtaining of calculation parameters, and intuitive and accurate calculation results; the hydrocarbon expulsion efficiency of the hydrocarbon source rock can be quantitatively evaluated; the petroliferous basin resource quantity and the reliability of exploration potential evaluation are improved, and wide applicability is provided.
Owner:PETROCHINA CO LTD

Classified reservoir evaluation method for undeveloped-reserve block

The invention provides a classified reservoir evaluation method for an undeveloped-reserve block. The classified reservoir evaluation method comprises the following steps of: selecting an evaluation object, and performing evaluation classification on each specific block one by one; developing specific reservoir evaluation work for a I-type evaluable production-establishing block, compiling a production-establishing plan and a development program, and conditionally reporting reserve volume; analyzing a main controlling factor which affects block valid production for a II-type deep tackling evaluation block, defining a technical strategy and a tackling direction for the specific block, compiling a development conceptual plan, designing a reservoir evaluation well and performing deep potential evaluation; performing effective use influence factor analysis for a III-type development delayed evaluation block, and defining specific reasons that the III-type development delayed evaluation block cannot be effectively developed. The method provides a feasible thought and method for classified reservoir evaluation of exploration on new discovery, reserve control and proving on undeveloped reserve, and the like on different-level new-district undeveloped-reserve blocks, provides technical support for oil-field reservoir evaluation work, and quickens effective use and reserve promotion for reserves at different levels.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method for evaluating electric power requirement response potential in province level, region/city level and area level

InactiveCN106327074AGet Demand Response PotentialShorten the timeTechnology managementResourcesOriginal dataEngineering
The invention discloses a method for evaluating an electric power requirement response potential in a province level, a region/city level and an area level. The method comprises the steps of A), determining an evaluating range; B), acquiring original data in the evaluating range; C), performing requirement response potential evaluation on residential areas, industrial enterprises, business buildings and typical users in the evaluating range; D), performing area-level requirement response potential evaluation on the evaluating range; E), performing region/city-level requirement response potential evaluation on the evaluating range; and F), performing province-level requirement response potential evaluation on the evaluating range. According to the method of the invention, the requirement-side resource in the next layer is used as an aggregation node with different scales, thereby effectively shortening time in performing large-area requirement-side resource evaluation. The method is used for quickly evaluating the requirement response potentials in the province level, the region/city level and the area level. The method performs an important function for requirement response plan making and requirement response project enforcement and furthermore has a good application prospect.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3

Initial form construction method of self-supporting fracture

The invention discloses an initial form construction method of self-supporting fracture. The method comprises the steps that A, a target reservoir rock is acquired, and processed as a cuboid rock plate, the rock plate is divided into two pieces along the direction perpendicular to the height, and A and B rough fracture surfaces are formed; B, surface topography data of A and B fracture surfaces iscollected, noise reduction and interpolation handling are conducted, and initial height matrices A0 and B0 are obtained; C, net value handling is conducted on the fracture surfaces, and net height matrices A1 and B1 are obtained; D, reverse handling is conducted on the fracture surfaces, and reverse height matrices A2 and B2 are obtained; E, dislocation handling is conducted on the fracture surfaces, and dislocation height matrices A3 and B3 are obtained; F, contact handling is conducted on the fracture surfaces, and contact height matrices A4 and B4 are obtained; G, A4 and B4 are used to plot, and an initial form of the self-supporting fracture is obtained. According to the initial form construction method of the self-supporting fracture, the initial shape of the self-supporting fractureof a target reservoir can be constructed, and an effective guidance for yield prediction and yield potential evaluation after hydraulic fracturing is provided.
Owner:SOUTHWEST PETROLEUM UNIV
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