A method and related apparatus for splitting oil ring production from an oil ring condensate gas reservoir

Abstract

The present application belongs to the technical field of condensate gas reservoir development, and discloses an oil ring production splitting method for a condensate gas reservoir with an oil ring and a related device, which comprises the following steps: constructing a plurality of oil ring area liquid tracer components and a plurality of oil ring area gaseous tracer components, and introducing them into an original component percolation model respectively to obtain a tracer component percolation model; obtaining the proportion of each oil ring area liquid tracer component in the output liquid of the gas reservoir to be analyzed and the proportion of each oil ring area gaseous tracer component in the output gas of the gas reservoir to be analyzed based on the tracer component percolation model; and obtaining the oil ring oil splitting proportion and the oil ring gas splitting proportion of the gas reservoir to be analyzed according to the proportion of each oil ring area liquid tracer component in the output liquid of the gas reservoir to be analyzed and the proportion of each oil ring area gaseous tracer component in the output gas of the gas reservoir to be analyzed. The present application can accurately analyze the proportion of oil ring oil and dissolved gas in the metered oil and gas production, and effectively improves the accuracy of the oil ring production splitting result of the condensate gas reservoir with a volatile oil ring.

Description

Technical Field

[0001] This invention belongs to the field of condensate gas reservoir development technology, and specifically relates to a method and related apparatus for splitting the oil ring production of condensate gas reservoirs with oil rings. Background Technology

[0002] Condensate gas reservoirs are a type of gas reservoir that lies between oil and gas reservoirs, and they typically exist underground in the gas phase. Condensate gas reservoirs with oil rings are condensate gas reservoirs where both gaseous and liquid hydrocarbons coexist. The composition of the produced components in condensate gas reservoirs with oil rings determines their development methods, extraction processes, and surface oil and gas separation and recovery processes. Therefore, it is necessary to analyze the composition of the produced components in condensate gas reservoirs with oil rings.

[0003] Currently, the main methods for dividing the production components of condensate gas reservoirs with oil rings are the crude oil density method and the gas-oil ratio method. The crude oil density method determines the black oil production based on the density difference between black oil and condensate oil, using the results of ground mixed crude oil density analysis. The gas-oil ratio method determines the black oil production based on the consistency of condensate phase change at the same pressure level, finding the point where the gas-oil ratio changes when black oil breaks through.

[0004] For oil rings with small saturation pressure differentials and high volatility, the development process involves complex changes such as formation pressure decline, oil ring volatilization and degassing, gas cap back condensation, condensate oil intrusion into the oil ring, and dissolved gas intrusion. These changes cause the crude oil density and production gas-oil ratio of the volatile oil ring to fluctuate constantly. The methods mentioned above are all for condensate gas reservoirs with black oil rings, which rely on crude oil density or gas-oil ratio for calculation. Therefore, when using the traditional oil ring splitting method to analyze the production of condensate gas reservoirs with volatile oil rings, it is very easy to produce large errors, resulting in low accuracy of the analysis results. Summary of the Invention

[0005] To address the technical problems existing in the prior art, this invention provides a method and related apparatus for dividing the production of condensate gas reservoirs with oil rings, in order to solve the technical problem that traditional oil ring production division methods are prone to producing large errors and have low accuracy in analysis results when performing production analysis on condensate gas reservoirs with volatile oil rings.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention provides a method for fractionating the production of oil rings in condensate gas reservoirs with oil rings, comprising: Based on the gas reservoir parameters to be analyzed, construct the original component seepage model; Based on the original component seepage model, the molar content of each reference component in the original oil ring zone of the gas reservoir to be analyzed is obtained; Based on the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed, several liquid tracer components and several gaseous tracer components in the oil annulus are constructed. Several liquid tracer components and several gaseous tracer components in the oil annulus region are respectively introduced into the original component seepage model to obtain the tracer component seepage model. Based on the tracer component seepage model, the proportion of liquid tracer component in each oil annulus zone to the produced liquid of the gas reservoir to be analyzed and the proportion of gas tracer component in each oil annulus zone to the produced gas of the gas reservoir to be analyzed are obtained. The oil-ring oil splitting ratio of the gas reservoir to be analyzed is obtained based on the proportion of liquid tracer components in each oil ring region to the produced liquid of the gas reservoir to be analyzed; the oil-ring gas splitting ratio of the gas reservoir to be analyzed is obtained based on the proportion of gas tracer components in each oil ring region to the produced gas of the gas reservoir to be analyzed.

[0007] Furthermore, the reservoir parameters to be analyzed include the reservoir reserves, initial reservoir pressure, temperature, porosity, and permeability.

[0008] Furthermore, the original component flow model is a gas-oil-water three-phase system model, and the oil phase and gas phase in the original component flow model achieve mass transfer through gas-liquid equilibrium.

[0009] Furthermore, the original component seepage model is specifically as follows:

[0010]

[0011] in, For the gas reservoir to be analyzed Take a look The molar content of the component; , It is a gas phase. It is an oil phase. It is an aqueous phase; For grouping, , The largest number of groups; For the gas reservoir to be analyzed Phase density; The absolute permeability of the gas reservoir to be analyzed; For the gas reservoir to be analyzed The relative permeability of the phase; For the gas reservoir to be analyzed Phase viscosity; For the gas reservoir to be analyzed Differential of the pressure vector of the phase; It is the acceleration due to gravity; The vertical depth vector differential of the gas reservoir to be analyzed; For the gas reservoir to be analyzed Component flow rate; Porosity of the gas reservoir; For the gas reservoir to be analyzed Phase saturation; This refers to gas phase saturation. Oil phase saturation; This refers to the water phase saturation. For the gas phase of the gas reservoir to be analyzed The molar content of the component; For the analysis of the oil facies of the gas reservoir The molar content of the component; For analysis of the water phase of the gas reservoir The molar content of the component; For the gas reservoir to be analyzed The gas-oil balance ratio of the components; For the gas reservoir to be analyzed The gas-water balance ratio of the components; Capillary force at the oil-gas interface; This refers to the pressure at the gas-phase interface. This refers to the oil phase interface pressure. Capillary force at the oil-water interface; This refers to the pressure at the water phase interface.

[0012] Furthermore, based on the original component seepage model, the molar content of each reference component in the original oil ring zone of the gas reservoir to be analyzed is obtained through flash evaporation calculation.

[0013] Furthermore, based on the original component seepage model, the process of obtaining the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed through flash evaporation calculation is as follows: Randomly set the gas-oil balance ratio and gas-water balance ratio of any component in the gas reservoir to be analyzed to obtain the initial gas-oil balance ratio and the initial gas-water balance ratio. Based on the original component seepage model, the molar content of any component in the gas reservoir to be analyzed under the initial balance ratio is calculated according to the initial gas-oil balance ratio and the initial gas-water balance ratio. Based on the molar content of any component in the gas reservoir to be analyzed under the initial equilibrium ratio, the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed are calculated. Based on the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed, the initial gas-oil balance ratio and the initial gas-water balance ratio are adjusted until the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed are equal, thereby obtaining a new gas-oil balance ratio and a new gas-water balance ratio. Based on the original component seepage model, and according to the new gas-oil balance ratio and the new gas-water balance ratio, the molar content of each reference component in the original oil ring of the gas reservoir to be analyzed is calculated.

[0014] Furthermore, the number of liquid tracer components in several oil annulus zones is the same as the number of liquid reference components in the original oil annulus zone of the gas reservoir to be analyzed, and the critical parameters are the same; the number of gaseous tracer components in several oil annulus zones is the same as the number of gaseous reference components in the original oil annulus zone of the gas reservoir to be analyzed, and the critical parameters are the same.

[0015] Furthermore, the process of introducing several liquid tracer components and several gaseous tracer components from the oil annulus region into the original component flow model to obtain the tracer component flow model is as follows: Several liquid tracer components from the oil annulus region are added to the original component seepage model to replace the liquid reference component in the original oil annulus region of the gas reservoir to be analyzed. The molar content of the liquid tracer components from the oil annulus region is set to the molar content of the replaced liquid reference component in the original oil annulus region of the gas reservoir to be analyzed, and the molar content of the replaced liquid reference component in the original oil annulus region of the gas reservoir to be analyzed is set to 0. Several gaseous tracer components from the oil annulus region are added to the original component seepage model to replace the gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed using several liquid tracer components from the oil annulus region. The molar content of the gaseous tracer components from the oil annulus region is set to the molar content of the replaced gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed, and the molar content of the replaced gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed is set to 0.

[0016] Furthermore, based on the tracer component seepage model, the process of obtaining the proportion of liquid tracer component in the produced liquid of the gas reservoir to be analyzed in each oil annulus zone and the proportion of gaseous tracer component in the produced gas of the gas reservoir to be analyzed in each oil annulus zone is as follows: Based on the tracer component permeation model, the flow rate change value of each liquid tracer component in the oil ring region and the flow rate change value of each gaseous tracer component in the oil ring region within the preset time period are calculated to obtain the production volume of each liquid tracer component in the oil ring region and the production volume of each gaseous tracer component in the oil ring region within the preset time period. Based on the tracer component seepage model, the volume of produced liquid and produced gas in the gas reservoir to be analyzed within a preset time period is calculated; Based on the production volume of the liquid tracer component in each oil annulus region within the preset time period and the production volume of the gas reservoir to be analyzed within the preset time period, the proportion of the liquid tracer component in each oil annulus region to the production volume of the gas reservoir to be analyzed is calculated. Based on the production volume of each gaseous tracer component in the oil annulus region within the preset time period and the production volume of the gas reservoir to be analyzed within the preset time period, the proportion of each gaseous tracer component in the oil annulus region to the production gas of the gas reservoir to be analyzed is calculated.

[0017] This invention also provides an oil ring production splitting system for oil ring condensate gas reservoirs, comprising: The original model building module is used to build an original component flow model based on the gas reservoir parameters of the gas reservoir to be analyzed. The component calculation module is used to obtain the molar content of each reference component in the original oil ring zone of the gas reservoir to be analyzed based on the original component seepage model. The tracer component construction module is used to construct several liquid tracer components and several gaseous tracer components in the original oil annulus of the gas reservoir to be analyzed, based on the molar content of each reference component in the original oil annulus. The tracer component replacement module is used to introduce several liquid tracer components and several gaseous tracer components in the oil annulus region into the original component flow model to obtain the tracer component flow model. The production ratio calculation module is used to obtain the proportion of liquid tracer component in each oil annulus zone to the produced liquid of the gas reservoir to be analyzed and the proportion of gas tracer component in each oil annulus zone to the produced gas of the gas reservoir to be analyzed, based on the tracer component seepage model. The splitting ratio calculation module is used to obtain the oil-ring oil splitting ratio of the gas reservoir to be analyzed based on the proportion of liquid tracer components in each oil ring region to the produced liquid of the gas reservoir to be analyzed; and to obtain the oil-ring gas splitting ratio of the gas reservoir to be analyzed based on the proportion of gas tracer components in each oil ring region to the produced gas of the gas reservoir to be analyzed.

[0018] The present invention also provides an electronic device, comprising: A processor is used to execute computer programs; A computer-readable storage medium storing a computer program, which, when executed by the processor, performs the method for splitting the oil ring production of an oil ring condensate gas reservoir.

[0019] The present invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method for splitting the oil ring production of an oil ring condensate gas reservoir.

[0020] The present invention also provides a computer program product, which includes a computer program that, when executed by a processor, implements the configuration software interface optimization method based on preloaded images.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a method for dividing the production volume of condensate gas reservoirs with oil rings. Based on the reservoir parameters, a gas-oil-water three-phase system model is constructed, and mass transfer between the oil and gas phases is achieved through gas-liquid equilibrium, accurately reflecting the internal flow equilibrium state of the gas reservoir. Liquid tracer components and gaseous tracer components in the oil ring zone are constructed and introduced into the original component flow model to form a tracer component flow model. Based on the tracer component flow model, the proportion of liquid tracer components in each oil ring zone relative to the produced liquid of the gas reservoir being analyzed, and the production volume of each oil ring zone are calculated. This invention utilizes the proportion of gaseous tracer components in the annular zone of the gas reservoir under analysis to rapidly and in real-time calculate the ratio of oil and gas produced in the annular zone to the metered oil and gas production in condensate gas reservoirs with volatile oil rings, thereby determining the degree of oil ring recovery. Furthermore, this invention employs numerical simulation to calculate the distribution of each component in the annular zone at any given time in the gas reservoir under analysis, obtaining production changes and accurately analyzing the proportion of oil and dissolved gas in the annular zone to the metered oil and gas production. This effectively improves the accuracy of the annular production breakdown results for condensate gas reservoirs with volatile oil rings, providing accurate data support for the development of such reservoirs.

[0022] The oil ring production segmentation system, electronic equipment, and computer-readable storage medium for condensate gas reservoirs with oil rings provided by this invention possess all the advantages of the aforementioned oil ring production segmentation methods for condensate gas reservoirs with oil rings. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A flowchart of the method for splitting the oil ring production of an oil ring condensate gas reservoir provided in Example 1; Figure 2 This is the initial gas cap phase diagram of the KKY condensate gas reservoir in Example 1; Figure 3 The initial oil ring phase diagram of the KKY condensate gas reservoir in Example 1; Figure 4 This is a schematic diagram of the initial oil saturation of the KKY condensate gas reservoir in Example 1; Figure 5 This is a schematic diagram of the initial gas saturation of the KKY condensate gas reservoir in Example 1; Figure 6 This is a graph showing the molar content distribution of the liquid tracer component CX1 in the oil ring region in year 0 of Example 1; Figure 7This is a graph showing the molar content distribution of the liquid tracer component CX1 in the oil ring region in Example 1 over the 20th year. Figure 8 This is a schematic diagram showing the proportion of components from the oil ring in the oil produced from well K7017C in Example 1; Figure 9 This is a graph showing the molar content distribution of the gaseous tracer component CY1 in the oil ring region in year 0 of Example 1; Figure 10 This is a graph showing the molar content distribution of the gaseous tracer component CY1 in the oil ring region in Example 1 over the 20th year. Figure 11 This is a schematic diagram showing the proportion of components from the oil ring in the gas produced from well K7017C in Example 1; Figure 12 This is a schematic diagram showing the oil production ratio after the oil and gas were split in the oil ring of well K7017C in Example 1; Figure 13 This is a schematic diagram showing the gas production ratio after oil and gas splitting in well K7017C in Example 1; Figure 14 This is a structural block diagram of the oil ring production splitting system for an oil ring condensate gas reservoir provided in Example 2; Figure 15 This is a structural block diagram of the electronic device provided in Example 3. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] This invention provides a method for fractionating the production of oil rings in condensate gas reservoirs with oil rings, comprising the following steps: Step 100: Construct the original component seepage model based on the gas reservoir parameters to be analyzed.

[0026] Step 200: Based on the original component seepage model, obtain the molar content of each reference component in the original oil ring zone of the gas reservoir to be analyzed.

[0027] Step 300: Based on the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed, construct several liquid tracer components and several gaseous tracer components for the oil annulus.

[0028] Step 400: Introduce several liquid tracer components and several gaseous tracer components in the oil ring region into the original component permeation model to obtain the tracer component permeation model.

[0029] Step 500: Based on the tracer component seepage model, obtain the proportion of liquid tracer component in each oil annulus zone to the produced liquid of the gas reservoir to be analyzed and the proportion of gas tracer component in each oil annulus zone to the produced gas of the gas reservoir to be analyzed.

[0030] Step 600: Based on the proportion of liquid tracer components in each oil annulus region to the produced liquid of the gas reservoir to be analyzed, obtain the oil annulus-oil splitting ratio of the gas reservoir to be analyzed; based on the proportion of gaseous tracer components in each oil annulus region to the produced gas of the gas reservoir to be analyzed, obtain the oil annulus-gas splitting ratio of the gas reservoir to be analyzed.

[0031] The oil ring production splitting method for condensate gas reservoirs with oil rings described in this invention constructs a gas-oil-water three-phase system model based on the reservoir parameters of the gas reservoir to be analyzed, and achieves mass transfer between the oil phase and the gas phase through gas-liquid equilibrium to accurately reflect the internal flow equilibrium state of the gas reservoir. By constructing liquid tracer components and gaseous tracer components in the oil ring zone and introducing them into the original component seepage model, a tracer component seepage model is formed. Based on the tracer component seepage model, the proportion of liquid tracer components in each oil ring zone to the produced liquid of the gas reservoir to be analyzed and the proportion of gaseous tracer components in each oil ring zone to the produced gas of the gas reservoir to be analyzed are calculated, so as to quickly and in real time calculate the ratio of oil and gas produced in the oil ring to the metered oil and gas in condensate gas reservoirs with volatile oil rings, and thus determine the degree of oil ring recovery.

[0032] Example 1 As attached Figure 1 As shown, this embodiment 1 provides a method for splitting the oil ring production of an oil ring condensate gas reservoir, including the following steps: Step 1: Construct an initial component flow model based on the reservoir parameters of the gas reservoir to be analyzed. The reservoir parameters include the reservoir reserves, initial reservoir pressure, temperature, porosity, and permeability. The initial component flow model is a gas-oil-water three-phase system model, and mass transfer between the oil phase and gas phase in the initial component flow model is achieved through gas-liquid equilibrium.

[0033] It should be noted that during the development of condensate gas reservoirs with oil rings, due to the reverse condensation effect and the impact of oil ring intrusion, the oil phase and gas phase will undergo phase changes with pressure changes. Assuming that the underground seepage process is an isothermal process and conforms to Darcy's law, based on the gas reservoir parameters to be analyzed, several component mass conservation equations are established according to the classical seepage mechanics theory, thus obtaining the original component seepage model.

[0034] Specifically, the original component seepage model is as follows:

[0035]

[0036] in, For the gas reservoir to be analyzed Take a look The molar content of the component; , It is a gas phase. It is an oil phase. It is an aqueous phase; For grouping, , The largest number of groups; For the gas reservoir to be analyzed Phase density; The absolute permeability of the gas reservoir to be analyzed; For the gas reservoir to be analyzed The relative permeability of the phase; For the gas reservoir to be analyzed Phase viscosity; For the gas reservoir to be analyzed Differential of the pressure vector of the phase; It is the acceleration due to gravity; The vertical depth vector differential of the gas reservoir to be analyzed; For the gas reservoir to be analyzed Component flow rate; Porosity of the gas reservoir; For the gas reservoir to be analyzed Phase saturation; This refers to gas phase saturation. Oil phase saturation; This refers to the water phase saturation. For the gas phase of the gas reservoir to be analyzed The molar content of the component; For the analysis of the oil facies of the gas reservoir The molar content of the component; For analysis of the water phase of the gas reservoir The molar content of the component; For the gas reservoir to be analyzed The gas-oil balance ratio of the components; For the gas reservoir to be analyzed The gas-water balance ratio of the components; Capillary force at the oil-gas interface; This refers to the pressure at the gas-phase interface. This refers to the oil phase interface pressure. Capillary force at the oil-water interface; This refers to the pressure at the water phase interface.

[0037] Step 2: Based on the original component seepage model, obtain the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed through flash evaporation calculation. Specifically, the process of obtaining the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed through flash evaporation calculation is as follows: Step 21: Randomly set the gas-oil balance ratio of any component in the gas reservoir to be analyzed. Gas-water balance ratio The initial gas-oil balance ratio and the initial gas-water balance ratio were obtained.

[0038] Step 22: Based on the original component seepage model, and according to the initial gas-oil balance ratio and the initial gas-water balance ratio, calculate the molar content of any component in the gas reservoir to be analyzed under the initial balance ratio; wherein, the calculation process of the molar content of any component in the gas reservoir to be analyzed under the initial balance ratio is as follows:

[0039]

[0040]

[0041] in, For the gas phase of the gas reservoir to be analyzed The molar content of the component; The total molar coefficient of the components in the gas reservoir to be analyzed; This represents the number of moles of the oil phase under equilibrium conditions. This represents the number of moles in the gas phase under equilibrium conditions. For the oil phase of the gas reservoir to be analyzed The molar content of the component; For the aqueous phase of the gas reservoir to be analyzed The molar content of the component; This represents the number of moles of water phase under equilibrium conditions.

[0042] Step 23: Based on the molar content of any component in the gas reservoir to be analyzed under the initial equilibrium ratio, calculate the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed.

[0043] The calculation process for the fugacity of any component in the gas phase of the gas reservoir to be analyzed is as follows:

[0044] in, For the gas reservoir to be analyzed Fugacity of components in the gas phase; For systemic pressure; The molar gas constant; The system temperature; This represents the volume of the gas.

[0045] The calculation process for the fugacity of any component in the oil phase of the gas reservoir to be analyzed is as follows:

[0046] in, For the gas reservoir to be analyzed Fugacity of components in the oil phase; The volumes are those of the oil and water phases. Components i At saturated vapor pressure and temperature Fugacity in the oil and aqueous phases; It is the saturated vapor pressure.

[0047] Step 24: Based on the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed, adjust the initial gas-oil balance ratio and the initial gas-water balance ratio until the fugacity of any component in the gas phase and the fugacity in the oil phase are equal, thus obtaining a new gas-oil balance ratio and a new gas-water balance ratio; wherein, the process of adjusting the initial gas-oil balance ratio and the initial gas-water balance ratio specifically includes: The fugacity of any component in the gas phase of the gas reservoir to be analyzed Fugacity of any component in the oil phase of the gas reservoir to be analyzed Perform a size comparison; if the following conditions are met... Then, the initial gas-oil balance ratio and the initial gas-liquid balance ratio are reduced to obtain new gas-oil balance ratios and new gas-liquid balance ratios; if the following conditions are met... Then, the initial gas-oil balance ratio and the initial gas-water balance ratio are increased to obtain a new gas-oil balance ratio and a new gas-water balance ratio.

[0048] Step 25: Based on the original component seepage model, and according to the new gas-oil balance ratio and the new gas-water balance ratio, calculate the molar content of each reference component in the original oil ring of the gas reservoir to be analyzed.

[0049] It should be noted that after obtaining the new gas-oil balance ratio and the new gas-water balance ratio, that is, when the fugacity of any component in the gas phase and the fugacity in the oil phase are equal, repeating the above step 22 will yield the molar content of each reference component in the original oil ring zone of the gas reservoir to be analyzed.

[0050] Step 3: Based on the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed, construct several liquid tracer components and several gaseous tracer components in the oil annulus. The number of liquid tracer components in the oil annulus is the same as the number of liquid reference components in the original oil annulus of the gas reservoir to be analyzed, and they also have the same critical parameters; the number of gaseous tracer components in the oil annulus is the same as the number of gaseous reference components in the original oil annulus of the gas reservoir to be analyzed, and they also have the same critical parameters.

[0051] Specifically, the liquid tracer components in the oil annulus region are (CX1, CX2, ..., CXa), used to replace the liquid reference components in the original oil annulus region of the gas reservoir to be analyzed; the gaseous tracer components in the oil annulus region are (CY1, CY2, ..., CYb), used to replace the gaseous reference components in the original oil annulus region of the gas reservoir to be analyzed; wherein, a and b are both positive integers, the value of a is the same as the number of liquid reference components in the original oil annulus region of the gas reservoir to be analyzed, and the value of b is the same as the number of gaseous reference components in the original oil annulus region of the gas reservoir to be analyzed.

[0052] Step 4: Introduce several liquid tracer components and several gaseous tracer components from the oil ring region into the original component permeation model to obtain the tracer component permeation model.

[0053] The process of introducing several of the aforementioned liquid tracer components in the oil ring region is as follows: Several liquid tracer components from the oil annulus region are added to the original component seepage model to replace the liquid reference component in the original oil annulus region of the gas reservoir to be analyzed using the several liquid tracer components from the oil annulus region; wherein, the molar content of the several liquid tracer components from the oil annulus region is set as the molar content of the replaced liquid reference component in the original oil annulus region of the gas reservoir to be analyzed, and the molar content of the replaced liquid reference component in the original oil annulus region of the gas reservoir to be analyzed is set to 0.

[0054] The process of introducing several of the aforementioned gaseous tracer components in the oil ring region is as follows: Several gaseous tracer components from the oil annulus region are added to the original component seepage model to replace the gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed using several liquid tracer components from the oil annulus region. The molar content of the gaseous tracer components from the oil annulus region is set to the molar content of the replaced gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed, and the molar content of the replaced gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed is set to 0.

[0055] It should be noted that by introducing several liquid tracer components and several gaseous tracer components in the oil annulus region, the liquid reference components and gaseous reference components in the original oil annulus region of the gas reservoir to be analyzed are respectively substituted. The production ratio of oil and dissolved gas in the oil annulus region is obtained by studying the changes in the production content of the tracer components. The number of tracer components is equal to the number of reference components split, and the critical conditions of the tracer components are the same as the critical conditions and molar contents of the reference components they replace. The molar contents of the reference components are set to 0.

[0056] Step 5: Based on the tracer component seepage model, obtain the proportion of liquid tracer component in each oil annulus zone to the produced liquid of the gas reservoir to be analyzed and the proportion of gas tracer component in each oil annulus zone to the produced gas of the gas reservoir to be analyzed.

[0057] Specifically, the process of obtaining the proportion of liquid tracer components in each oil annulus region relative to the produced liquid of the gas reservoir to be analyzed includes the following steps: Step 511: Based on the tracer component permeation model, calculate the flow rate change value of each liquid tracer component in the oil ring region within a preset time period, and obtain the production volume of each liquid tracer component in the oil ring region within the preset time period.

[0058] Step 512: Based on the tracer component seepage model, calculate the produced fluid within a preset time period of the gas reservoir to be analyzed.

[0059] Step 513: Based on the production volume of the liquid tracer component in each oil annulus region within the preset time period and the production volume of the gas reservoir to be analyzed within the preset time period, calculate the proportion of the liquid tracer component in each oil annulus region to the production volume of the gas reservoir to be analyzed; wherein, the calculation process for the proportion of the liquid tracer component in each oil annulus region to the production volume of the gas reservoir to be analyzed is as follows:

[0060] in, The proportion of liquid tracer components in each of the oil annulus regions relative to the produced liquid of the gas reservoir being analyzed; The production volume of each liquid tracer component in the oil ring region within a preset time period; The total volume of produced liquid within a preset time period of the gas reservoir to be analyzed.

[0061] It should be noted that, because the mass conservation equation is satisfied at any location in the formation, the change in flow rate of a certain liquid component at any well point over any time period is equal to the production volume of the corresponding component over the preset time period; the volume of the produced liquid can be obtained by summing the volumes of the produced liquids of all components; for example, the volume of the produced component CX1 from a single well is... A x The sum of the cumulative volumes of the liquid components is Bx Then the ratio of the CX1 component produced to the liquid phase volume is: A x / B x .

[0062] Specifically, the process of obtaining the proportion of gaseous tracer components in each oil annulus region relative to the produced gas of the gas reservoir to be analyzed includes the following steps: Step 521: Based on the tracer component seepage model, calculate the flow rate change value of each gaseous tracer component in the oil ring region within a preset time period, and obtain the production volume of each gaseous tracer component in the oil ring region within the preset time period.

[0063] Step 522: Based on the tracer component seepage model, calculate the produced gas in the gas reservoir to be analyzed within a preset time period.

[0064] Step 523: Based on the production volume of the gaseous tracer component in each oil annulus region within the preset time period and the production volume of the gas reservoir to be analyzed within the preset time period, calculate the proportion of the gaseous tracer component in each oil annulus region to the produced gas of the gas reservoir to be analyzed; wherein, the calculation process for the proportion of the gaseous tracer component in each oil annulus region to the produced gas of the gas reservoir to be analyzed is as follows:

[0065] in, The proportion of gaseous tracer components in each oil annulus region relative to the produced gas of the gas reservoir to be analyzed; The production volume of each gaseous tracer component in the oil ring region within a preset time period; The total volume of produced gas within a preset time period of the gas reservoir to be analyzed.

[0066] It should also be noted that, because the mass conservation equation is satisfied at any location in the formation, the change in flow rate of a certain gaseous component at any well point over any time period is equal to the production volume of the corresponding component over the preset time period; the production volume can be obtained by summing the production volumes of all components; for example, the volume of production component CY1 from a single well is... A y The sum of the cumulative volumes of the gas components is B y Then the ratio of the CY1 component produced to the liquid phase volume is: A y / B y .

[0067] Step 6: Based on the proportion of liquid tracer components in each oil annulus region to the produced liquid of the gas reservoir to be analyzed, obtain the oil annulus-oil splitting ratio of the gas reservoir to be analyzed; based on the proportion of gaseous tracer components in each oil annulus region to the produced gas of the gas reservoir to be analyzed, obtain the oil annulus-gas splitting ratio of the gas reservoir to be analyzed.

[0068] The calculation process for the oil ring splitting ratio of the gas reservoir to be analyzed is as follows:

[0069] in, The ratio of oil ring splitting in the gas reservoir to be analyzed; CX, a liquid tracer component in the oil ring region x The proportion of produced liquid in the gas reservoir to be analyzed.

[0070] The calculation process for the oil-gas splitting ratio of the gas reservoir to be analyzed is as follows:

[0071] in, The ratio of oil ring gas splitting in the gas reservoir to be analyzed; CY, a gaseous tracer component in the oil ring region y The proportion of produced gas in the gas reservoir to be analyzed.

[0072] The oil ring production splitting method for condensate gas reservoirs with oil rings described in Example 1 constructs a gas-oil-water three-phase system model based on the reservoir parameters. In this model, mass transfer between the oil and gas phases is achieved through gas-liquid equilibrium, accurately reflecting the dynamic fluid equilibrium state within the reservoir. This provides a foundation for subsequent flash evaporation calculations and ensures the accuracy of the results. Based on the original component seepage model, the molar content of each reference component in the original oil ring zone of the reservoir is obtained through flash evaporation calculations. Flash evaporation calculations accurately reflect the distribution and content of each component in the reservoir under specific conditions, providing data support for subsequent tracer component selection. Based on the obtained molar content, several liquid tracer components and several gaseous tracer components in the oil ring zone are constructed to enable more accurate tracking and analysis. The contribution of oil ring production improves the accuracy and reliability of the analysis. Introducing selected tracer components into the original component flow model forms a tracer component flow model, which more intuitively reflects the flow and distribution of liquid and gaseous components in the gas reservoir within the oil ring. Based on the tracer component flow model, the proportion of liquid tracer components in each oil ring of the analyzed gas reservoir and the proportion of gaseous tracer components in each oil ring of the analyzed gas reservoir are calculated. Based on the obtained tracer component proportions, the oil ring oil splitting ratio and oil ring gas splitting ratio of the analyzed gas reservoir are calculated respectively. Detailed model calculations and data analysis make the splitting results more accurate and reliable. This embodiment 1 not only improves the accuracy of production splitting but also provides strong technical support for the rational development and production of gas reservoirs.

[0073] Example explanation: Taking the oil ring production splitting process of the KKY condensate gas reservoir as an example, the oil ring production splitting method of the condensate gas reservoir with oil ring described in Example 1 above will be explained in detail.

[0074] The KKY condensate gas reservoir had an initial reservoir pressure of 45 MPa and a temperature of 92℃. The reservoir exhibited weak water energy at the reservoir's edges and bottom, weak elastic energy in the rock framework, and high volatility in the oil ring. The dew point pressure at the gas cap and the bubble point pressure of the oil ring were 44.5 MPa, approximately equal to the reservoir pressure. The initial hydrocarbon composition of the reservoir is shown in Table 1, which illustrates the component categories and molar contents of the initial gas and oil zones. The initial gas cap facies of the KKY condensate gas reservoir is shown in the appendix. Figure 2 The initial oil ring phase diagram of the KKY condensate gas reservoir is attached. Figure 3 .

[0075] Table 1 Initial hydrocarbon composition of the KKY condensate gas reservoir

[0076] Based on the reservoir parameters of the KKY condensate gas reservoir, an original component flow model was established. The basic parameter settings of the original component flow model are shown in Table 2; the initial oil saturation of the KKY condensate gas reservoir is shown in Appendix 2. Figure 4 As shown in the attached figure, the initial gas saturation of the KKY condensate gas reservoir is [missing information]. Figure 5 As shown.

[0077] Table 2 Basic parameter settings for the original component seepage model

[0078] Taking tracer component CX1 instead of oil ring reference component C11+ as an example; as shown in Table 1, the molar content of reference component C11+ in the gas top region is 3.39%, and the molar content of reference component C11+ in the oil ring region is 12.78%; the molar content of tracer component CX1 in the oil ring region is set to 12.78%, and the molar content of tracer component CX1 in the gas top region is set to 0%; the molar content of oil ring reference component C11+ in the oil ring region is set to 0%, and the simulated components of the oil ring and gas top become as shown in Table 3.

[0079] Table 3. Component content table containing tracer component CX1

[0080] As shown in Tables 1 and 3, the reference components of the oil ring include C1, C2, C3+, C5+, and C11+. Since C1-C4 represent gas and C5+ and above represent oil under standard ground conditions, a method for dividing the oil ring produced gas and oil ratios is established based on this standard: tracer components CX1 and CX2 are used to replace the oil ring reference components C11+ and C5+, respectively, and tracer components CY1, CY2, and CY3 are used to replace the oil ring reference components C1, C2, and C3+, respectively. Through calculation, the proportions of tracer components CX1 and CX2 in the produced liquid are determined to be m1, m2, n1, n2, and n3 respectively, respectively. Finally, the oil ring oil ratio is obtained as m1 + m2, and the oil ring gas ratio is obtained as n1 + n2 + n3.

[0081] The model includes two wells, K7010 and K7017C. Well K7010 is located at coordinates (3, 3) with a perforation at the top of the gas layer, while well K7017C is located at coordinates (6, 7) with a perforation in the middle of the gas layer. This allows for convenient study of the composition of the oil ring produced at different perforation locations at different distances from the oil ring and the characteristics of production variation. Well K7010 is controlled to produce 60,000 cubic meters of gas per day, and well K7017C is controlled to produce 120,000 cubic meters of gas per day. The separator conditions are 20℃ and 1 atm. The model is set to be continuously developed for 20 years.

[0082] (1) Analysis of single-component splitting results: Analysis of oil produced from the oil ring: Taking the oil ring reference component C11+ as an example, such as... Figure 6 , 7 As shown, the saturation of tracer component CX1 gradually increases in the oil ring, reaching its maximum value in the bottom region due to gravity differentiation effects, and only appearing near the oil-gas interface and around the wellbore in the gas cap region; Figure 8 As shown, taking the production dynamics of well K7017C as an example, it can be seen that the proportion of components from oil ring C5+ and C11+ in the produced oil first increases and then decreases, with C5+ having a higher proportion.

[0083] Analysis of oil ring produced gas: Taking component C1 as an example, such as... Figure 9 , 10 As shown, the saturation of tracer component CY1 in the oil ring first increases and then decreases, indicating that rapid volatilization and degassing occur in the early stages of oil ring development. Subsequently, the gas production rate exceeds the volatilization rate, so the saturation of component C1 gradually decreases, while the saturation of CY1 increases rapidly in the gas region. Figure 11 As shown, taking the production dynamics of well K7017C as an example, it can be seen that the proportion of components from oil ring C1, C2, and C3+ in the produced gas gradually increases, and the gas produced from oil ring mainly comes from C1. In the early stage of development, the proportion of C1 production is relatively stable, which is judged to be that the oil ring volatilization rate and the rate of gas produced from oil ring reach equilibrium during this stage.

[0084] (2) Oil and gas splitting ratio produced by the oil ring By adding the components belonging to the oil ring and the gas ring, taking well K7017C as an example, the oil-to-gas ratio of the oil ring can be determined. Figure 12 , 13 As shown, the proportion of oil produced by the well's oil ring first increased and then decreased, reaching a maximum of 4%, while the proportion of gas produced gradually increased, reaching 14% at the end of the development period.

[0085] Example 2 As attached Figure 14 As shown in the figure, this embodiment 2 provides an oil ring production splitting system for an oil ring condensate gas reservoir, including an original model construction module, a component calculation module, a tracer component construction module, a tracer component substitution module, a production ratio calculation module, and a splitting ratio calculation module.

[0086] The original model construction module is used to construct an original component flow model based on the gas reservoir parameters to be analyzed; wherein, the original component flow model is a gas-oil-water three-phase system model, and the oil phase and gas phase in the original component flow model achieve mass transfer through gas-liquid equilibrium; the component calculation module is used to obtain the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed through flash evaporation calculation based on the original component flow model; the tracer component construction module is used to construct several liquid tracer components and several gaseous tracer components in the oil annulus of the gas reservoir to be analyzed based on the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed; the tracer component substitution module is used to substitute several oil annulus components... The liquid tracer components and several gaseous tracer components from the oil annulus regions are respectively introduced into the original component flow model to obtain the tracer component flow model; the production ratio calculation module is used to obtain the proportion of produced liquid of each liquid tracer component in the oil annulus region and the proportion of produced gas of each gaseous tracer component in the oil annulus region in the gas reservoir to be analyzed based on the tracer component flow model; the splitting ratio calculation module is used to obtain the oil-annulus splitting ratio of the gas reservoir to be analyzed based on the proportion of produced liquid of each liquid tracer component in the oil annulus region in the gas reservoir to be analyzed; and to obtain the oil-annulus splitting ratio of the gas reservoir to be analyzed based on the proportion of produced gas of each gaseous tracer component in the oil annulus region in the gas reservoir to be analyzed.

[0087] Example 3 As attached Figure 15 As shown, this embodiment 3 provides an electronic device, including: a memory for storing a computer program; a processor for executing the computer program to implement the steps of the oil ring production splitting method for an oil ring condensate gas reservoir; or, the processor executing the computer program to implement the functions of each module in the above-mentioned oil ring production splitting system for an oil ring condensate gas reservoir.

[0088] The computer program implements the steps of a method for splitting the production of oil rings in condensate gas reservoirs with oil rings, for example: Based on the reservoir parameters of the gas reservoir to be analyzed, an original component flow model is constructed. Based on the original component flow model, the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed is obtained through flash evaporation calculations. Based on the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed, several liquid tracer components and several gaseous tracer components in the oil annulus are constructed. These several liquid tracer components and several gaseous tracer components in the oil annulus are respectively introduced into the original component flow model. A tracer component flow model is obtained; based on the tracer component flow model, the proportion of liquid tracer component in each oil annulus region relative to the produced liquid of the gas reservoir to be analyzed and the proportion of gaseous tracer component in each oil annulus region relative to the produced gas of the gas reservoir to be analyzed are obtained; based on the proportion of liquid tracer component in each oil annulus region relative to the produced liquid of the gas reservoir to be analyzed, the oil-annulus oil splitting ratio of the gas reservoir to be analyzed is obtained; based on the proportion of gaseous tracer component in each oil annulus region relative to the produced gas of the gas reservoir to be analyzed, the oil-annulus gas splitting ratio of the gas reservoir to be analyzed is obtained.

[0089] The functions of each module in the oil ring production partitioning system for condensate gas reservoirs with oil rings include: an original model construction module, used to construct an original component flow model based on the reservoir parameters; wherein the original component flow model is a gas-oil-water three-phase system model, and mass transfer between the oil phase and gas phase in the original component flow model is achieved through gas-liquid equilibrium; a component calculation module, used to obtain the molar content of each reference component in the original oil ring region of the gas reservoir under analysis through flash evaporation calculation based on the original component flow model; a tracer component construction module, used to construct several liquid tracer components and several gaseous tracer components in the oil ring region based on the molar content of each reference component in the original oil ring region of the gas reservoir under analysis; and tracer components... The substitution module is used to introduce several liquid tracer components and several gaseous tracer components from the oil annulus into the original component flow model to obtain a tracer component flow model; the production ratio calculation module is used to obtain the proportion of each liquid tracer component in the oil annulus to the produced liquid of the gas reservoir to be analyzed and the proportion of each gaseous tracer component in the oil annulus to the produced gas of the gas reservoir to be analyzed based on the tracer component flow model; the splitting ratio calculation module is used to obtain the oil-annulus splitting ratio of the gas reservoir to be analyzed based on the proportion of each liquid tracer component in the oil annulus to the produced liquid of the gas reservoir to be analyzed; and to obtain the oil-annulus splitting ratio of the gas reservoir to be analyzed based on the proportion of each gaseous tracer component in the oil annulus to the produced gas of the gas reservoir to be analyzed.

[0090] For example, the computer program can be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete Embodiment 3. The one or more modules / units can be a series of computer program instruction segments capable of performing a preset function, and these instruction segments describe the execution process of the computer program in the electronic device.

[0091] The electronic device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The electronic device may include, but is not limited to, a processor and memory. Those skilled in the art will understand that the above are examples of the electronic device and do not constitute a limitation on the electronic device. It may include more components than described above, or combine certain components, or different components. For example, the electronic device may also include input / output devices, network access devices, buses, etc.

[0092] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor, or any conventional processor. The processor is the control center of the electronic device, connecting all parts of the electronic device through various interfaces and lines.

[0093] The memory can be used to store the computer program and / or module. The processor implements various functions of the electronic device by running or executing the computer program and / or module stored in the memory and by calling the data stored in the memory.

[0094] The memory may primarily include a program storage area and a data storage area. The program storage area may store the operating system and at least one application program required for a function (such as sound playback, image playback, etc.); the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disks, RAM, plug-in hard disks, SmartMediaCards (SMC), Secure Digital (SD) cards, FlashCards, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0095] Example 4 This embodiment 4 also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method for splitting the production of an oil ring condensate gas reservoir with an oil ring.

[0096] If the modules / units integrated in the oil ring production splitting system of the oil ring condensate gas reservoir are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0097] Based on this understanding, the present invention can implement all or part of the process in the above-mentioned method for dividing the oil ring production of condensate gas reservoirs with oil rings. This can also be accomplished by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium. When executed by a processor, the computer program can implement the steps of the above-mentioned method for dividing the oil ring production of condensate gas reservoirs with oil rings. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or a preset intermediate form, etc.

[0098] The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0099] It should be noted that the content contained in the computer-readable storage medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable storage medium does not include electrical carrier signals and telecommunication signals.

[0100] Example 5 This embodiment 5 provides a computer product, which includes a computer program stored in a computer-readable storage medium. The processor of the electronic device reads the computer program from the computer-readable storage medium and executes the computer program, so that the electronic device can execute the oil ring production splitting method for condensate gas reservoirs with oil rings as described in embodiment 1, which will not be repeated here.

[0101] It should be noted that those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods.

[0102] The oil ring production splitting method for condensate gas reservoirs with oil rings described in this invention utilizes reservoir parameters to construct a component model. By replacing the original oil ring reference component with a tracer component, the splitting of oil and gas produced in the oil ring is calculated. This enables rapid and real-time calculation of the ratio of oil and gas produced in the oil ring to the metered oil and gas in condensate gas reservoirs with volatile oil rings, thereby determining the degree of oil ring recovery. This method can provide support for the understanding of the development of such oil and gas reservoirs.

[0103] The above embodiments are merely one of the implementation methods for achieving the technical solution of the present invention. The scope of protection claimed by the present invention is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention.

Claims

1. A method for fractionating the production of oil rings in an oil ring condensate gas reservoir, characterized in that, include: Based on the gas reservoir parameters to be analyzed, construct the original component seepage model; Based on the original component seepage model, the molar content of each reference component in the original oil ring zone of the gas reservoir to be analyzed is obtained; Based on the molar content of each reference component in the original oil annulus of the gas reservoir to be analyzed, several liquid tracer components and several gaseous tracer components in the oil annulus are constructed. Several liquid tracer components and several gaseous tracer components in the oil annulus region are respectively introduced into the original component seepage model to obtain the tracer component seepage model. Based on the tracer component seepage model, the proportion of liquid tracer component in each oil annulus zone to the produced liquid of the gas reservoir to be analyzed and the proportion of gas tracer component in each oil annulus zone to the produced gas of the gas reservoir to be analyzed are obtained. The oil-ring oil splitting ratio of the gas reservoir to be analyzed is obtained based on the proportion of liquid tracer components in each oil ring region to the produced liquid of the gas reservoir to be analyzed; the oil-ring gas splitting ratio of the gas reservoir to be analyzed is obtained based on the proportion of gas tracer components in each oil ring region to the produced gas of the gas reservoir to be analyzed.

2. The method for fractionating the production of oil rings in an oil ring condensate gas reservoir according to claim 1, characterized in that, The gas reservoir parameters to be analyzed include the reservoir reserves, initial reservoir pressure, temperature, porosity, and permeability.

3. The method for fractionating the production of oil rings in an oil ring condensate gas reservoir according to claim 1, characterized in that, The original component flow model is a gas-oil-water three-phase system model, and the oil phase and gas phase in the original component flow model achieve mass transfer through gas-liquid equilibrium.

4. The method for fractionating the production of oil rings in an oil ring condensate gas reservoir according to claim 3, characterized in that, The original component seepage model is as follows: in, For the gas reservoir to be analyzed Take a look The molar content of the component; , It is a gas phase. It is an oil phase. It is an aqueous phase; For grouping, , The largest number of groups; For the gas reservoir to be analyzed Phase density; The absolute permeability of the gas reservoir to be analyzed; For the gas reservoir to be analyzed The relative permeability of the phase; For the gas reservoir to be analyzed Phase viscosity; For the gas reservoir to be analyzed Differential of the pressure vector of the phase; It is the acceleration due to gravity; The vertical depth vector differential of the gas reservoir to be analyzed; For the gas reservoir to be analyzed Component flow rate; Porosity of the gas reservoir; For the gas reservoir to be analyzed Phase saturation; This refers to gas phase saturation. Oil phase saturation; This refers to the water phase saturation. For the gas phase of the gas reservoir to be analyzed The molar content of the component; For the analysis of the oil facies of the gas reservoir The molar content of the component; For analysis of the water phase of the gas reservoir The molar content of the component; For the gas reservoir to be analyzed The gas-oil balance ratio of the components; For the gas reservoir to be analyzed The gas-water balance ratio of the components; Capillary force at the oil-gas interface; This refers to the pressure at the gas-phase interface. This refers to the oil phase interface pressure. Capillary force at the oil-water interface; This refers to the pressure at the water phase interface.

5. The method for fractionating the production of oil rings in an oil ring condensate gas reservoir according to claim 1, characterized in that, Based on the original component seepage model, the molar content of each reference component in the original oil ring of the gas reservoir to be analyzed is obtained through flash evaporation calculation.

6. The method for fractionating the production of oil rings in an oil ring condensate gas reservoir according to claim 5, characterized in that, Based on the original component seepage model, the process of obtaining the molar content of each reference component in the original oil ring of the gas reservoir under analysis through flash evaporation calculation is as follows: Randomly set the gas-oil balance ratio and gas-water balance ratio of any component in the gas reservoir to be analyzed to obtain the initial gas-oil balance ratio and the initial gas-water balance ratio. Based on the original component seepage model, the molar content of any component in the gas reservoir to be analyzed under the initial balance ratio is calculated according to the initial gas-oil balance ratio and the initial gas-water balance ratio. Based on the molar content of any component in the gas reservoir to be analyzed under the initial equilibrium ratio, the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed are calculated. Based on the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed, the initial gas-oil balance ratio and the initial gas-water balance ratio are adjusted until the fugacity of any component in the gas phase and the fugacity in the oil phase of the gas reservoir to be analyzed are equal, thereby obtaining a new gas-oil balance ratio and a new gas-water balance ratio. Based on the original component seepage model, and according to the new gas-oil balance ratio and the new gas-water balance ratio, the molar content of each reference component in the original oil ring of the gas reservoir to be analyzed is calculated.

7. The method for fractionating the production of oil rings in an oil ring condensate gas reservoir according to claim 1, characterized in that, The number of liquid tracer components in several oil annulus zones is the same as the number of liquid reference components in the original oil annulus zone of the gas reservoir to be analyzed, and the critical parameters are the same; the number of gaseous tracer components in several oil annulus zones is the same as the number of gaseous reference components in the original oil annulus zone of the gas reservoir to be analyzed, and the critical parameters are the same.

8. The method for fractionating the production of oil rings in an oil ring condensate gas reservoir according to claim 1, characterized in that, The process of introducing several liquid tracer components and several gaseous tracer components from the oil annulus region into the original component flow model to obtain the tracer component flow model is as follows: Several liquid tracer components from the oil annulus region are added to the original component seepage model to replace the liquid reference component in the original oil annulus region of the gas reservoir to be analyzed. The molar content of the liquid tracer components from the oil annulus region is set to the molar content of the replaced liquid reference component in the original oil annulus region of the gas reservoir to be analyzed, and the molar content of the replaced liquid reference component in the original oil annulus region of the gas reservoir to be analyzed is set to 0. Several gaseous tracer components from the oil annulus region are added to the original component seepage model to replace the gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed using several liquid tracer components from the oil annulus region. The molar content of the gaseous tracer components from the oil annulus region is set to the molar content of the replaced gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed, and the molar content of the replaced gaseous reference component in the original oil annulus region of the gas reservoir to be analyzed is set to 0.

9. The method for fractionating the production of an oil ring in a condensate gas reservoir with an oil ring according to claim 8, characterized in that, Based on the tracer component seepage model, the process of obtaining the proportion of liquid tracer component in the produced liquid of the gas reservoir to be analyzed in each oil annulus and the proportion of gaseous tracer component in the produced gas of the gas reservoir to be analyzed in each oil annulus is as follows: Based on the tracer component permeation model, the flow rate change value of each liquid tracer component in the oil ring region and the flow rate change value of each gaseous tracer component in the oil ring region within the preset time period are calculated to obtain the production volume of each liquid tracer component in the oil ring region and the production volume of each gaseous tracer component in the oil ring region within the preset time period. Based on the tracer component seepage model, the volume of produced liquid and produced gas in the gas reservoir to be analyzed within a preset time period is calculated; Based on the production volume of the liquid tracer component in each oil annulus region within the preset time period and the production volume of the gas reservoir to be analyzed within the preset time period, the proportion of the liquid tracer component in each oil annulus region to the production volume of the gas reservoir to be analyzed is calculated. Based on the production volume of each gaseous tracer component in the oil annulus region within the preset time period and the production volume of the gas reservoir to be analyzed within the preset time period, the proportion of each gaseous tracer component in the oil annulus region to the production gas of the gas reservoir to be analyzed is calculated.

10. An oil ring production splitting system for an oil ring condensate gas reservoir, characterized in that, include: The original model building module is used to build an original component flow model based on the gas reservoir parameters of the gas reservoir to be analyzed. The component calculation module is used to obtain the molar content of each reference component in the original oil ring zone of the gas reservoir to be analyzed based on the original component seepage model. The tracer component construction module is used to construct several liquid tracer components and several gaseous tracer components in the original oil annulus of the gas reservoir to be analyzed, based on the molar content of each reference component in the original oil annulus. The tracer component replacement module is used to introduce several liquid tracer components and several gaseous tracer components in the oil annulus region into the original component flow model to obtain the tracer component flow model. The production ratio calculation module is used to obtain the proportion of liquid tracer component in each oil annulus zone to the produced liquid of the gas reservoir to be analyzed and the proportion of gas tracer component in each oil annulus zone to the produced gas of the gas reservoir to be analyzed, based on the tracer component seepage model. The splitting ratio calculation module is used to obtain the oil-ring oil splitting ratio of the gas reservoir to be analyzed based on the proportion of liquid tracer components in each oil ring region to the produced liquid of the gas reservoir to be analyzed; and to obtain the oil-ring gas splitting ratio of the gas reservoir to be analyzed based on the proportion of gas tracer components in each oil ring region to the produced gas of the gas reservoir to be analyzed.

11. An electronic device, characterized in that, include: A processor is used to execute computer programs; A computer-readable storage medium storing a computer program, which, when executed by the processor, performs the method for splitting the oil ring production of an oil ring condensate gas reservoir as described in any one of claims 1-9.

12. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the method for splitting the oil ring production of condensate gas reservoirs with oil rings as described in any one of claims 1-9.

13. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the configuration software interface optimization method based on preloaded images as described in any one of claims 1-9.

Images