235 results about "Reservoir type" patented technology

The invention discloses a reservoir fluid identification method, device and equipment and a medium, and relates to the technical field of oil and gas field exploration. The invention provides a multi-level nested reservoir fluid identification method based on geological mode constraint for double-medium tight sandstone. For different reservoir types, a preset algorithm is utilized to fuse the comprehensive logging parameters and the proposed fluid sensitive factors suitable for the double-medium tight sandstone, and fluid discrimination parameters suitable for different reservoir types are constructed. On the basis, reservoir types are divided by comprehensively considering the coupling action result of the matrix and the tectonic fracture, the difference of fluid characteristics of different reservoir types is determined, and based on the classification constraint of a geological mode, the different reservoir types are divided, and the fluid type of the tight sandstone reservoir is identified by using an integrated identification model. Logging curve data for fluid identification are easy to obtain, the fluid identification precision is high, the identification efficiency is high, and the method can be widely applied to reservoir fluid identification of double-medium tight sandstone.

The invention belongs to the technical field of shale oil exploration and development, and particularly relates to a two-dimensional nuclear magnetic resonance logging fluid saturation calculation method and system. The calculation method comprises the following steps: acquiring attribute data of a reservoir; determining lithology sensitive parameters and shale indexes of the reservoir according to the attribute data; determining a reservoir type according to the attribute data, the lithology sensitive parameters and the shale index; determining a fluid identification model of the reservoir according to the reservoir type and the nuclear magnetic resonance response characteristics; and calculating the fluid saturation of the reservoir by using the fluid identification model. When reservoir fluid identification and fluid saturation quantitative calculation are carried out, multiple reference indexes are referred to at the same time, then the reservoir fluid saturation of the reservoir can be accurately calculated, and the identification accuracy is high.

The invention relates to the technical field of shale oil phase state evaluation, in particular to a nanometer space shale oil in-situ phase state and shale oil reservoir type intelligent evaluation method which comprises the steps that a pressure maintaining rock core is obtained from a shale target layer series; the method comprises the following steps: taking out a blocky frozen-state pressure-maintaining rock core, quickly crushing, putting into a pyrolysis device sample boat, feeding into a pyrolysis furnace, acquiring pyrolysis data at each acquisition moment in a pyrolysis process, determining a comparison interval coefficient at the current moment, and constructing an accumulated comparison coefficient for adjusting control parameters so as to adjust the pyrolysis temperature; the method comprises the following steps: preparing a pressure-maintaining rock core, rapidly heating a heat release sample, separating the sample into various monomeric compounds to obtain a pressure-maintaining rock core pyrolysis gas chromatography spectrogram, calculating the content of each component, using simulation software and combining thermodynamic parameters of oil and gas components to obtain a shale oil P-T phase diagram, and further determining a nano space shale oil in-situ phase state and a shale oil reservoir type. The accuracy, efficiency and convenience of shale oil phase state and oil reservoir type evaluation are improved.

The invention provides an exploration method and system for natural zero hydrocarbon, helium and various associated gas reservoirs. The method comprises the steps that a sampling device is used for collecting gas samples at preset first sampling points and repeated sample collecting points; collecting a gas sample to determine various gas concentration data of each first sampling point and various gas concentration data of each repeated sample collection point; detecting the gas concentration data of each first sampling point by using the gas concentration data of each repeated sample collection point to obtain the detected gas concentration data corresponding to each sample; drawing a geochemical comprehensive anomaly map of the sampling area according to the detected gas concentration data corresponding to each sample; and determining a target region range of natural zero hydrocarbon, and / or helium, and / or various associated gas reservoirs according to the comprehensive anomaly map. According to the technical scheme provided by the invention, various new energy gas reservoir types in the deep geological structure and the target regions corresponding to the gas reservoir types can be quickly identified and delineated.

The invention provides a carbonate rock dominant productivity reservoir identification method. The carbonate rock dominant productivity reservoir identification method comprises the following steps: S1, acquiring element logging curve data, an electric imaging basic image, a conventional logging curve, core experiment data and gas logging data of a well in a research block; s2, by means of element logging curve data and conventional logging curve data, the mineral content of the region is obtained, and the lithofacies AL of the research region is determined; s3, a reservoir type parameter AE is given; solving an electric imaging porosity spectrum parameter by utilizing the electric imaging two-dimensional curve, and solving a porosity spectrum evaluation parameter AD; s4, analyzing the relationship between the conventional logging curve and the gas logging data, determining the boundary between the dominant gas production reservoir and the low-productivity reservoir, and constructing a productivity evaluation parameter AO; and S5, according to the calculated parameter values, respectively calculating evaluation standards and weights of different parameters, calculating the carbonate reservoir in the research area according to the standards and the weights to obtain a reservoir comprehensive quality index, and according to the reservoir comprehensive quality index, obtaining advantageous capacity reservoir distribution.

The invention discloses a well logging water saturation calculation method and device, equipment and a medium, and relates to the technical field of oil and gas field exploration and development geological research, and the method comprises the steps: preprocessing a well logging curve of a crack and pore composite compact sandstone reservoir, and calculating the parameter information of a crack according to the processed curve; correcting the deep lateral resistivity value in the processed curve to obtain a corrected resistivity value; calculating a target exchange coefficient and a resistance increase rate of the rock core; determining a logging cementation index according to the parameter information of the fracture and the target exchange coefficient, dividing reservoir types, and fitting the core water saturation and the resistance increase rate of different reservoir types to obtain fitting results; obtaining a logging saturation index and a logging lithologic coefficient according to an Archie formula and a fitting result, and determining the logging water saturation based on the corrected resistivity value, the logging cementation index, the logging saturation index and the logging lithologic coefficient. And the logging water saturation can be accurately calculated.

The invention provides a construction method of a horizontal well reservoir interpretation model, and relates to the technical field of shale oil-gas field development, and the construction method comprises the following steps: obtaining a target oil testing result and a target parameter corresponding to a fractured section of a target horizontal well; performing correlation analysis on the target parameters according to the target oil testing result, and determining sensitive parameters sensitive to oil-water characteristics in the target parameters; constructing a target relation model according to the sensitive parameters; and establishing a comprehensive interpretation model for interpreting the reservoir type of the horizontal well. According to the method, the target relation model for calculating the lithology index, the oiliness index and the pore structure index is established, and the comprehensive interpretation model for interpreting the reservoir type of the horizontal well through the three indexes is established, so that the characteristics of multiple aspects such as lithology, oiliness and pore structure of the reservoir can be more comprehensively reflected; therefore, the precision of reservoir type interpretation is improved, and accurate data support can be provided for horizontal well fracturing staged clustering.

The invention provides a fractured reservoir type evaluation method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining conventional logging information of a fractured reservoir, and solving the total porosity PorT, matrix porosity PorB and fracture porosity PorFra of the reservoir according to a conventional method; calculating a fracture reservoir development index RECP, and defining reservoir development levels (class I, class II and class III) through the RECP value; calculating a reservoir type main control factor index ZKYS, and defining fracture development characteristics (a high angle, a low angle and a medium-high angle) through the ZKYS; and establishing a reservoir type evaluation method through a cross plot technology. According to the method, quantitative evaluation of the fracture type is achieved by applying a conventional logging method, the coincidence rate is high compared with imaging logging, the logging interpretation evaluation level of the fractured reservoir is improved, and the application range and prospect are quite wide.

The invention provides an oil and gas reservoir type gas storage building method, and relates to the technical field of oil and gas reservoir type gas storages, and the method comprises the following steps: arranging a first number of gas injection and production wells at the gas top part of an oil and gas reservoir, arranging a second number of oil production wells at the oil ring part of the oil and gas reservoir, and injecting natural gas into the oil and gas reservoir by using the gas injection and production wells, along with formation pressure rise, the oil producing well is driven to carry out crude oil blowing production. Therefore, the capacity of the gas storage can be increased, meanwhile, due to the fact that the transformation object of the oil and gas reservoir type gas storage is generally an exhausted oil and gas reservoir, by means of the technical scheme, the crude oil yield and the crude oil recovery rate can be greatly increased, exploitation of the exhausted oil and gas reservoir is achieved to the maximum extent, and the energy utilization rate is increased.

The invention belongs to the technical field of natural gas underground, and particularly provides a gas reservoir type gas storage working gas volume optimization design method, which comprises the following steps: determining a gas well seepage radius r and a single well control area Szc by adopting seepage theoretical calculation, numerical simulation II and a well control storage capacity conversion method; the method comprises the following steps: researching the proportional relation between the capacity of a built reservoir and dynamic reserves in the reservoir building process, determining the effective reservoir capacity GKR and the effective area S of the gas reservoir, designing the number n of wells required to be deployed for reservoir building, analyzing the matching between the daily total gas production capacity of the gas reservoir and the designed daily gas production quantity according to peak regulation requirements, optimizing the working gas quantity of the gas reservoir, and finally realizing the benefit building of the gas reservoir.

The invention provides a pumped storage reservoir leakage parameterization investigation and arrangement method based on reservoir type classification, and the method comprises the steps: dividing a pumped storage power station reservoir into a plurality of reservoir types according to the position of the reservoir and the landform characteristics of a reservoir region; setting reservoir leakage investigation key parts; outputting a parameterized reservoir leakage exploration and drilling workload scheme by adopting a reservoir leakage exploration and drilling scheme parameterization algorithm according to the reservoir type, topographic features and reservoir leakage exploration key parts of each reservoir type; training and identifying library type classification, and constructing a library type data source; and carrying out reservoir leakage parameterized investigation arrangement based on the reservoir type. According to the invention, for leakage investigation elements emphasized during the investigation and design of the pumped storage power station, pumped storage reservoir type classification and leakage parameterization investigation are combined through intelligent identification and parameterization arrangement rules, the investigation and arrangement efficiency is improved, manual field climbing point selection is greatly reduced, and the working efficiency is improved. And the efficiency and the accuracy of reservoir leakage investigation arrangement work are improved.

The invention provides a shale reservoir grading evaluation method. The shale reservoir grading evaluation method comprises the following steps: acquiring petrology, geochemistry and pore structure parameters of different shale reservoirs by utilizing at least two experimental test methods; calculating a multi-scale fractal parameter of the pore structure of the shale reservoir; according to the obtained petrology, geochemistry, pore structure and multi-scale fractal parameters, reservoir evaluation is conducted, and shale reservoir grading is completed. According to the method, shale reservoir petrology, geochemistry and pore structure parameters are obtained by comprehensively utilizing multiple means, pore structure multi-scale fractal parameters are calculated, reservoir characteristics are evaluated by combining multiple types of parameters, and reservoir grading evaluation is completed; the problem that a single test method or a single calculation method cannot systematically analyze the pore structure of the reservoir, divide the type of the reservoir and carry out reservoir evaluation is avoided, and the accuracy, effectiveness and comprehensiveness of grading evaluation of the shale reservoir are improved.

The invention discloses a continental facies shale condensate gas reservoir horizontal well productivity numerical simulation method which comprises the following steps: 1) obtaining production characteristic related data of related wells in a continental facies shale condensate gas reservoir research area, and comparing and analyzing the production characteristics of the wells; 2) carrying out gas reservoir modeling according to the production characteristic related data, and establishing a matrix and crack system multiphase multicomponent model; 3) solving the gas reservoir numerical model according to fluid-rock physical property parameters, well and production plan related data and initial condition related data; 4) on the basis of the established gas reservoir numerical model, fitting production history of each well, analyzing fluid phase state characteristics, and fitting phase state parameters of the gas reservoir numerical model; 5, productivity simulation is carried out through the optimized gas reservoir numerical model, development dynamic prediction is carried out on all wells, and a corresponding reasonable production allocation plant.The model established through the method is more suitable for the gas reservoir type of shale condensate gas reservoirs.

The invention discloses a method and device for determining the injection-production capacity of a gas storage, and the method comprises the steps: obtaining the reasonable production pressure difference of the gas storage and the development data of the oil reservoir in the development period, solving a Duapi formula according to the first target data of the development data, and obtaining the oil phase permeability; according to second target data of the development data, solving the binomial gas well productivity equation to obtain gas phase permeability, determining gas well gas production capacity according to the reasonable production pressure difference, the oil phase permeability and the gas phase permeability, and according to the reasonable production pressure difference, performing nitrogen test injection on the gas storage to determine gas well gas injection capacity. Due to the fact that the permeability influence of the oil phase and the gas phase is considered when the gas production capacity of the gas well is determined, the actual situation in the gas storage can be met to the maximum extent through nitrogen injection testing when the gas injection capacity of the gas well is determined, and the gas well injection and production capacity determination applied to the gas cap reservoir type gas storage has more scientific guiding significance; and the accuracy of determining the injection-production capacity of the gas storage is improved.

The invention discloses a method for predicting a high-quality reservoir of deep-buried matrix type tight sandstone. The method comprises the following steps: acquiring production data and reservoir physical property parameters of a target work area; drawing a porosity cumulative frequency and cumulative probability distribution diagram and a permeability cumulative frequency and cumulative probability distribution diagram according to the production data and the reservoir physical property parameters; respectively determining a porosity inflection point, a first permeability inflection point and a second permeability inflection point according to the porosity cumulative frequency and cumulative probability distribution diagram and the permeability cumulative frequency and cumulative probability distribution diagram; selecting a plurality of samples of the target work area, and determining a permeability upper limit point according to the plurality of samples; according to the porosity inflection point, the first permeability inflection point, the second permeability inflection point and the permeability upper limit point, reservoir types are divided, and a high-quality reservoir is determined. The method not only provides scientific basis for tight sandstone gas prediction, but also provides theoretical guidance for exploration and development of tight sandstone gas with similar geological backgrounds, and has important practical value for exploration and development of deep-layer and ultra-deep-layer tight sandstone gas.

The invention provides a reservoir prediction method based on deposition difference, and the method comprises the steps: 1, comparing and analyzing the drilling conditions of single wells, obtaining the thicknesses of reservoirs between the wells, and dividing the types of the reservoirs; 2, performing matching analysis on the deposition difference of different layer development and the reservoir type in the step 1; 3, restoring the positions of the river channels in different deposition periods according to a matching result; and step 4, reservoir prediction is carried out by using a seismic attribute extraction method and combining the river channel position. The reservoir prediction result provided by the reservoir prediction method based on the deposition difference has a good application effect, well location deployment and implementation effects are improved by using the technology, and the actual reservoir drilling encounter distribution and prediction coincidence rate is high.

The present invention provides a carbonate reservoir classification method and a reservoir type identification plate establishment method. The identification plate establishment method includes: obtaining well logging data, core analysis data, pore throat median radius data and oil test data of coring wells for exploration and development of carbonate oil and gas fields; classifying the coring well section reservoirs; for each coring well section reservoir of each reservoir type, calculating the reservoir structure parameters and performing normalization processing; obtaining the intersection diagram of the normalized reservoir structure parameters and porosity to obtain a reservoir type identification plate. The carbonate reservoir classification method includes: using the above method to establish a carbonate reservoir type identification plate for the work area; obtaining well logging data and pore throat median radius data for the target reservoir in the work area; determining the target reservoir structure parameters and performing normalization processing; using the normalized reservoir structure parameters and porosity of the target reservoir to intersect, and referring to the established carbonate reservoir type identification plate for the work area to identify the target reservoir type.

The invention relates to the technical field of oil-gas exploration, and discloses a gas reservoir numerical simulation method based on a gas storage, which comprises the following steps: establishing a geological simulation model based on the geological characteristics of the gas storage and the type of a gas reservoir, establishing a numerical simulation model based on the geological simulation model, and realizing gas reservoir production dynamic history fitting with a set time span. The geological simulation model and the numerical simulation model are corrected and perfected, and the corrected and perfected geological simulation model and the corrected and perfected numerical simulation model are used for production tracking of the gas injection well and the gas recovery well of the gas storage; wherein the correction refers to error data correction, and the perfection refers to data supplementation. According to the method, the problems of low multi-cycle injection-production pressure and yield fitting precision and the like in the prior art are solved.

The present application relates to a kind of carbonate buried hill oil reservoir reconstruction gas storage evaluation method and device, the method comprises: the cap rock sealing property and fault sealing property of carbonate buried hill oil reservoir are evaluated, and the trapping sealing property evaluation result is obtained;Attribute data body is obtained by multi-window dip scanning to time domain seismic data, and based on attribute data body, coherent attribute body, curvature attribute body and ant body attribute body are generated, and coherent attribute body, curvature attribute body are respectively fused with ant body attribute body, and the favorable reservoir characterization result is obtained;Reservoir space in the oil-gas-water three-phase saturation under the condition of reconstruction gas storage is calculated, and the capacity parameter evaluation result is obtained;Based on the trapping sealing property evaluation result, favorable reservoir characterization result and capacity parameter evaluation result, buried hill oil reservoir reconstruction gas storage evaluation result is generated.The present application method is suitable for the evaluation of reservoir type reconstruction gas storage, and provides good technical support for the design of gas storage scheme.

The invention discloses an oil reservoir data processing method and device, electronic equipment and a storage medium. The method comprises the following steps: determining at least one target oil reservoir characteristic index according to characteristic index data of a plurality of to-be-divided oil reservoir samples under a plurality of candidate oil reservoir characteristic indexes; determining a first feature matrix corresponding to the to-be-divided oil reservoir samples and a second feature matrix corresponding to the target oil reservoir feature indexes according to the target index data of the plurality of to-be-divided oil reservoir samples under each target oil reservoir feature index; and determining an oil reservoir classification result corresponding to the to-be-divided oil reservoir sample based on the first feature matrix, and analyzing the oil reservoir classification result based on the first feature matrix and the second feature matrix. According to the technical scheme, the effect of improving the classification accuracy and classification efficiency of the oil reservoir types is achieved, the oil reservoir samples and the target oil reservoir characteristic indexes are combined and analyzed, and the effects of revealing the real internal cause of the difference between the oil reservoirs of different types and improving the credibility of the oil reservoir type classification result are achieved.

The present invention provides a reservoir numerical simulation grid design method, which comprises: step 1, optimizing the model area and formulating the area selection criteria; step 2, establishing reservoir models with different grid steps and conducting numerical simulation research; step 3, optimizing the dynamic and static comprehensive evaluation parameters and establishing a model grid step evaluation parameter library; step 4, scoring and optimizing the grid step based on the reservoir type, and establishing a scoring standard suitable for the reservoir type in a specific research area. The reservoir numerical simulation grid design method of the present invention draws on the concept of typical volume units, and aims at the problem that the large step grid cannot accurately describe the small geological body and its spatial variation, and the small step grid calculation time greatly increases and convergence problems. By establishing a dynamic and static comprehensive evaluation parameter system, the different grid step models are comprehensively scored, and the quantitative optimization of the grid step is realized.

The invention relates to the technical field of gas well reservoir identification methods, in particular to a method and device for eliminating coal seam interference in gas well reservoir accurate identification, and the method comprises the following steps: determining the existence of a coal seam by using a while-drilling gamma curve, a resistivity curve and a rock debris logging coal dust proportion; calculating a dynamic influence factor; on the basis of a gas survey data correction formula, obtaining a gas survey correction value of any depth point, and on the basis of a resistivity correction formula, obtaining correction resistivity; and determining the reservoir type by combining the gas logging correction value, the correction resistivity, the gas logging humidity ratio and the interval transit time. According to the method, firstly, the gas logging data and the logging resistivity are corrected, the influence of the coal seam on the gas logging data and the resistivity data is eliminated, the abnormal interference of the coal seam on the gas logging data and the logging data is effectively removed, and then the gas logging correction value obtained after correction, the correction resistivity, the gas logging humidity ratio and the interval transit time are combined, so that the gas logging data and the logging resistivity are obtained. According to the method, the precision and the efficiency of gas reservoir identification are improved.

The invention discloses a three-dimensional space distribution optimization prediction method based on reservoir classification, and relates to the field of oil-gas exploration and development, and the method comprises the steps: obtaining the physical property data of a core sample in a target region, and classifying the physical property test points through a clustering analysis method; establishing a three-dimensional geologic model of a target area, and determining favorable main control factors and adverse main control factors which influence physical properties through spatial superposition of different types of reservoir bodies and physical property influence factors; a three-dimensional space influence factor superposition three-dimensional body is established through superposition of various physical property influence factor weight coefficients, physical properties are calculated through physical property influence factor homogenization numerical values and the weight coefficients, and three types of reservoir bodies are divided; and continuously verifying and training the precision degree of the prediction model by adding a new drilling well and a new type of influence factors, and predicting the reservoir type of the well-free region by using the corrected and optimized prediction model. The reservoir prediction precision can be improved, the visualization of the prediction result is enhanced, and the exploration and development efficiency is improved.

The invention relates to the technical field of reservoir physical properties, and particularly discloses application of an improved variable yield analysis method in evaluation of reservoir physical properties. Comprising the following steps that firstly, the change of the yield in actual production is simplified into stepped change, and the flowing bottomhole pressure at each moment is calculated according to the superposition principle; secondly, regarding each production section as a homogeneous reservoir, solving the obtained flowing bottomhole pressure equation at each moment to obtain the change of the permeability of the reservoir, and establishing a minimum objective function of each flowing pressure; and finally, recording the permeability when the minimum M is obtained under each yield to obtain the average permeability of the pressure wave and the area under the yield. The method can analyze the continuous change of the parameters of the reservoir around the production well, is simple, accurate in analysis effect, suitable for homogenizing oil reservoirs and homogenizing heterogeneous oil reservoirs, can be popularized to production analysis of other reservoir types, and has great application prospects.

The invention provides a method and a device for determining entrapment geological resource quantity, electronic equipment and a storage medium. The method comprises the following steps: determining entrapment data information of a to-be-determined item of a target entrapment in a preset entrapment knowledge graph based on multiple pieces of first entrapment data information; inputting the plurality of pieces of first trap data information and the trap data information of the to-be-determined item into a pre-trained trap geological resource quantity prediction model, and performing interactive item calculation processing on the plurality of pieces of first trap data information and the trap data information of the to-be-determined item, predicting the trap geological resource quantity of the target trap; wherein the trap geological resource quantity prediction model is obtained by training a linear regression model through interaction items of multiple pieces of sample trap data. According to the method, traps of different exploration degrees, trap types and oil and gas reservoir types can uniformly use the model to calculate the resource quantity, and the efficiency and accuracy of determining the geological resource quantity are improved.

The embodiment of the invention discloses a mudstone and shale reservoir type identification method and device, equipment and a medium. The method comprises the following steps: acquiring a target proportion of a target pore in a storage space of a test sample; the test sample is made according to a rock sample, the rock sample is obtained from a target stratum, the target stratum is a mudstone or shale reservoir, and the target pores are organic pores, inorganic pores and cracks; determining a target area corresponding to the target proportion of the target pore in a triangular chart; different areas in the triangular chart correspond to different proportions of target pores, and different areas correspond to different reservoir types; and determining the reservoir type corresponding to the target area as the reservoir type of the target stratum. According to the technical scheme, after the reservoir types are quantitatively divided, the reservoir types of the target stratum can be accurately recognized, and guidance and reference are provided for quantitative evaluation, exploration and development of oil and gas reservoirs.

The invention belongs to the technical field of oilfield development, and discloses an oil and gas reservoir modeling processing system based on clastic rocks and a use method of the oil and gas reservoir modeling processing system. The data processing system is used for processing fault and logging data, geological stratification data and well perforation data, the grid management system is used for dividing and encrypting grid types, the model building system is used for building a digital-analog model and an oil-gas reservoir relation model, and the digital-analog management system is used for outputting the built model. And the established digital model is convenient to modify and reconstruct, so that the digital model pretreatment work requirement of complex oil and gas reservoir types is met, the historical fitting speed of subsequently realizing numerical simulation is improved, and the modeling treatment of clastic rock oil and gas reservoirs is facilitated.

The invention discloses a complex riverway geologic modeling method based on automatic pickup of multiple object source directions, and belongs to the technical field of oil-gas exploration and development, and the method comprises the following steps: S1, obtaining the plane and longitudinal distribution characteristics of a riverway; s2, establishing a three-dimensional space distribution model of the river channel body in different periods, and processing boundary data of the river channel in different periods; s3, calling azimuth angle data to establish a sand body distribution model in the river channel in different periods; s4, single well reservoir types are divided, and reservoir type distribution models in the river channels in different periods are established; and S5, discretizing the porosity curve of the single well, calling azimuth angle data to establish porosity models under different reservoir types, and establishing permeability models under different reservoir types. According to the built river channel sand body and physical property parameter model, the situation that reservoir physical property distribution is controlled by river flow direction variability material sources is truly represented, the method is suitable for scenes with large work areas and complex river channel distribution, and modeling timeliness and accuracy can be improved.

The present application relates to a kind of thin interbed type deposit high-quality reservoir prediction method, comprising: obtaining the geological data, seismic data and well logging data of the region to be analyzed, well seismic combination tracking interpretation oil group top, bottom interface;With the oil group top, bottom interface as constraint, utilize the three-dimensional seismic data acquisition three-dimensional seismic inversion data;With the oil group top, bottom interface as constraint, according to the three-dimensional seismic inversion data and the well logging data are combined, obtain oil group internal relative isochronous sedimentary interface;According to the oil group internal relative isochronous sedimentary interface, based on three-dimensional seismic inversion data, each small layer reservoir plane distribution in oil group is solved;According to the three-dimensional seismic inversion data, based on the information of actual drilling well, sandstone probability body seismic data is solved;Utilize actual drilling well information to construct reservoir classification standard, realize single well reservoir type division;According to the sandstone probability body seismic data, with single well reservoir type as constraint, carry out high-quality reservoir space distribution prediction.

The present application provides a method, device, computer equipment and storage medium for determining reservoir types, and belongs to the field of oil and gas exploration technology. The method includes: determining a rock sample of a target reservoir; obtaining a capillary pressure curve corresponding to the rock sample, the capillary pressure curve is used to represent the corresponding relationship between the mercury injection pressure and the mercury injection volume of the rock sample; fitting the capillary pressure curve through a first objective function to obtain a first fitting parameter, the first fitting parameter includes a first displacement parameter and a first pore morphology parameter; according to the first displacement parameter and the first pore morphology parameter, through a second objective function, determining a first classification parameter of the rock sample; according to the parameter interval where the first classification parameter is located, determining the reservoir type of the reservoir. Since the first fitting parameter is obtained by fitting the capillary pressure curve, the method for determining the reservoir type will not be limited by the pore structure of the rock sample, thereby improving the accuracy of determining the reservoir type of the reservoir.