Method and device for fusion management of oil field reserve assessment and asset value reduction early warning

Abstract

The invention relates to the field of oil and gas field development, and discloses an oil field reserve assessment and asset value reduction early warning fusion management method and device, and the method comprises the steps: obtaining basic data; dividing the oil field into a plurality of subdivision units based on the basic data; calculating residual economic recoverable reserves of each subdivision unit based on the basic data; calculating the loss rate of each subdivision unit based on the basic data and the remaining economic recoverable reserves of each subdivision unit, and determining the unit with the higher loss rate in the plurality of subdivision units as a key monitoring unit; and calculating a reserve value of each key monitoring unit based on the basic data and the remaining economic recoverable reserves, the reserve value being a future net cash flow discount value, and determining a value reduction unit where asset value reduction occurs in the plurality of key monitoring units and sending out early warning information based on the reserve value and the asset net amount of each key monitoring unit. According to the invention, the differentiated fine evaluation management level of oil and gas reserves and assets of old oil fields can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil and gas field development, in particular to a method and device for integrated management of oil field reserve evaluation and asset impairment early warning. BACKGROUND

[0002] In the process of gradual investment, exploration and development of an oil field, multiple development zones will be formed. These development zones will have differences in reserves and asset scale due to differences in reservoir properties, development stages, investment work, etc. Some development zones have high production, low cost and high investment return rate, while some development zones may have low production and low efficiency. The production and operation benefits of each development zone in an oil field will have great differences. According to international accounting standards, SEC reserves are the basis for oil and gas asset depreciation and impairment. The entire oil field as a reserve evaluation unit will inevitably mask the differences between the internal development zones, especially the low-yield and low-efficiency blocks. The evaluation results cannot truly reflect the actual potential of each development zone. If the actual situation of the internal development zones of the oil field is subdivided and evaluated differently, the reserve results will have a great impact on asset depreciation and impairment testing, and further affect the enterprise cost, operating profit, etc. At present, the reserve evaluation and asset impairment of each oil field company are responsible for different departments and are in a replacement mode. There is no platform for integrated management of reserve fine evaluation and asset impairment. In order to improve the development management level and improve the efficiency of oil and gas reserves and assets, a scheme for integrated management of reserve evaluation and asset impairment early warning considering the production and operation differences of internal units of the oil field needs to be researched. SUMMARY

[0003] The main purpose of the present application is to provide a method and device for integrated management of oil field reserve evaluation and asset impairment early warning, to solve the problem of how to improve the differentiated fine evaluation and management level of old oil field oil and gas reserves and assets.

[0004] According to one aspect of the present application, a method for integrated management of oil field reserve evaluation and asset impairment early warning is provided, comprising: obtaining basic data, the basic data including asset net amount; dividing the oil field into multiple subdivided units based on the basic data; calculating the remaining economic recoverable reserves of each subdivided unit based on the basic data; calculating the depreciation rate of each subdivided unit based on the basic data and the remaining economic recoverable reserves of each subdivided unit, and determining the units with higher depreciation rate in the multiple subdivided units as key monitoring units; calculating the reserve value of each key monitoring unit based on the basic data and the remaining economic recoverable reserves, the reserve value being the future net cash flow discounted value, and determining the impairment unit in which asset impairment occurs in the multiple key monitoring units based on the reserve value of each key monitoring unit and the asset net amount, and issuing a warning information.

[0005] According to one embodiment of the present application, the basic data comprises oilfield data and economic data; the oilfield data comprises multiple of the following: reservoir type, development mode, development stage, production layer, porosity, permeability, production scale, decline rate, operating cost, new asset scale, net asset value; the economic data comprises multiple of the following: oil price, gas price, ton oil tax, dissolved gas oil ratio, crude oil commodity rate, natural gas commodity rate, natural gas shrinkage coefficient, gas tax.

[0006] According to one embodiment of the present application, the basic data comprises key parameter data of multiple development zones of the oilfield; the oilfield is divided into multiple subdivision units, comprising: The multiple development zones are divided into multiple subdivision units based on the difference between the key parameter data of the multiple development zones; wherein the key parameter data comprises: production layer, permeability, development stage, production scale, decline rate.

[0007] According to one embodiment of the present application, the remaining economic recoverable reserves of each subdivision unit are calculated, comprising: calculating the economic limit production of each subdivision unit based on the basic data, and calculating the remaining economic recoverable reserves of each subdivision unit based on the basic data and the economic limit production.

[0008] According to one embodiment of the present application, the economic limit production is calculated according to the following formula:

[0009] Wherein, is the economic limit production, ton / month; is the fixed cost, yuan / month; is the oil price, yuan / ton; is the ton oil tax, yuan / ton; is the ton oil variable cost, yuan / ton; is the crude oil commodity rate; is the dissolved gas oil ratio, thousand cubic meters / ton; is the gas price, yuan / thousand cubic meters; is the gas tax, yuan / thousand cubic meters; is the natural gas shrinkage coefficient; is the natural gas commodity rate.

[0010] According to one embodiment of the present application, when the production of a certain month in the decline period is equal to , the remaining economic recoverable reserves are calculated according to the following formula:

[0011] Wherein, is the remaining economic recoverable reserves, ton; The cumulative output during the initial decrease, in tons; This represents the monthly output at the initial decrease, in tons per month. The monthly output during the declining period is expressed in tons per month. This is the initial decrease rate; It is a decreasing exponent.

[0012] According to one embodiment of the present invention, the depletion rate is calculated according to the following formula: Loss rate = Annual production / Initial remaining economically recoverable reserves.

[0013] According to one embodiment of the present invention, the discounted value of future net cash flows is calculated according to the following formula:

[0014] in, The present value of future net cash flows is in ten thousand yuan. The annual output for the assessment period is in ten thousand tons. The price is for oil, in yuan / ton; The variable cost per ton of oil is expressed in yuan / ton. Taxes and fees are calculated per ton of oil, in yuan / ton. Fixed cost, 10,000 yuan; The development cost is 10,000 yuan. The discount rate; The period of economic development is in years.

[0015] According to another aspect of the present invention, an apparatus for integrated management of oilfield reserve assessment and asset impairment early warning is provided, comprising: The acquisition module is configured to acquire basic data, including net assets. The partitioning module is configured to divide the oilfield into multiple sub-units based on the basic data. The calculation module is configured to calculate the remaining economically recoverable reserves of each sub-unit based on the basic data. The module is configured to calculate the depletion rate of each sub-unit based on the basic data and the remaining economically recoverable reserves of each sub-unit, and to identify the sub-unit with the higher depletion rate among multiple sub-units as the key monitoring unit. The early warning module is configured to calculate the reserve value of each key monitoring unit based on basic data and remaining economically recoverable reserves. The reserve value is the discounted value of future net cash flows. Based on the reserve value and net assets of each key monitoring unit, the module identifies the impairment units among multiple key monitoring units that have experienced asset impairment and issues early warning information.

[0016] According to another aspect of the present invention, a computer device is provided, comprising: At least one processor; and A memory storing a computer program that can run on the processor, which, when executing the program, implements the method as described in any of the above embodiments.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method as described in any of the above embodiments.

[0018] In the technical solution of this invention, the oilfield is divided into multiple sub-units and the reserves of each sub-unit are calculated. Based on the depletion data of each sub-unit, multiple key monitoring units are determined, and depreciation units are identified from the multiple key monitoring units for early warning. This allows for a precise assessment of the reserves of each sub-unit, truly reflecting the development potential and the profitability of reserve assets. It also focuses on monitoring the depreciation risk of reserve assets in high-depletion units, thereby improving the level of lean management in oilfield development. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A flowchart illustrating a method for integrated management of oilfield reserve assessment and asset impairment early warning according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of an apparatus for integrated management of oilfield reserve assessment and asset impairment early warning according to an embodiment of the present invention is shown; Figure 3 This diagram illustrates the discounted value curves of future cash flows during the economic development period of each unit according to an embodiment of the present invention. Figure 4 A schematic diagram of an interactive interface according to an embodiment of the present invention is shown. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to specific examples and the accompanying drawings.

[0022] It should be noted that all uses of "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of the present invention. Subsequent embodiments will not explain this in detail.

[0023] refer toFigure 1 This invention proposes a method for integrated management of oilfield reserve assessment and asset impairment early warning, comprising the following steps: S1, Obtain basic data, which includes net assets; S2 divides the oilfield into multiple sub-units based on basic data; S3, calculates the remaining economically recoverable reserves (i.e., PD reserves) of each sub-unit based on the basic data. S4. Based on the basic data and the remaining economically recoverable reserves of each sub-unit, calculate the depletion rate of each sub-unit, and identify the sub-unit with the higher depletion rate among multiple sub-units as the key monitoring unit. S5 calculates the reserve value of each key monitoring unit based on basic data and remaining economically recoverable reserves. The reserve value is the discounted value of future net cash flows. Based on the reserve value and net assets of each key monitoring unit, it identifies the impairment units among multiple key monitoring units that have experienced asset impairment and issues early warning information.

[0024] In embodiments of the present invention, the oilfield is divided into multiple sub-units and the reserves of each sub-unit are calculated. Based on the depletion data of each sub-unit, multiple key monitoring units are identified, and depreciation units are identified from the multiple key monitoring units for early warning. This allows for a precise assessment of the reserves of each sub-unit, truly reflecting the development potential and the profitability of reserve assets. It also focuses on monitoring the depreciation risk of reserve assets in high-depletion units, thereby improving the level of lean management in oilfield development.

[0025] In some embodiments, the basic data includes oilfield data and economic data; the oilfield data includes multiple of the following: reservoir type, development method, development stage, production layer, porosity, permeability, production scale, decline rate, operating cost, new asset scale, and net assets; the economic data includes multiple of the following: oil price, gas price, tax per ton of oil, dissolved gasoline ratio, crude oil commodity rate, natural gas commodity rate, natural gas contraction coefficient, and gas tax.

[0026] In some embodiments, the basic data includes key parameter data of multiple development zones in an oilfield; dividing the oilfield into multiple sub-units includes: dividing the multiple development zones into multiple sub-units based on the differences between the key parameter data of the multiple development zones; wherein the key parameter data includes: production layer, permeability, development stage, production scale, and decline rate. The differences between the key parameter data of multiple development zones can be judged based on experience, and multiple development zones with large differences can be assigned to different sub-units, while multiple development zones with small differences can be assigned to the same sub-unit. The data of multiple development zones assigned to the same sub-unit can be merged, and the merged data can be used as the unified data for that sub-unit. The merging methods include, but are not limited to, using the average value (arithmetic mean or weighted average), maximum value, minimum value, or a specific merging algorithm.

[0027] In some embodiments, a production and operation database for each development unit in an old oilfield can be established. This database includes data related to reserve assessment and oil and gas asset management, such as reservoir type, development method, development stage, development pattern, production scale, new asset scale, and existing asset scale. This provides a basic data source for differentiated and refined assessment and management. Then, key parameters are selected from the database for comparative analysis of differences between development units, such as differences between new and old areas, differences in production and decline rates, differences in future work plans and new asset scale, etc. This allows for differentiated segmentation of reserve assessment units and matching of asset units for differentiated asset management.

[0028] In some embodiments, calculating the remaining economically recoverable reserves of each sub-unit includes: calculating the economic limit production of each sub-unit based on basic data, and calculating the remaining economically recoverable reserves of each sub-unit based on the basic data and the economic limit production.

[0029] The economic limit output for each sub-unit can be calculated based on current development data, oil and gas prices, operating costs, taxes, etc. In some embodiments, the economic limit output is calculated using the following formula:

[0030] in, The economically maximum production capacity is measured in tons per month. Fixed cost, RMB / month; The price is for oil, in yuan / ton; Taxes and fees are calculated per ton of oil, in yuan / ton. The variable cost per ton of oil is expressed in yuan / ton. The crude oil commodity rate is expressed as a decimal. The dissolved gas-oil ratio is expressed in thousands of cubic meters per ton. Gas price, yuan / thousand cubic meters; Gas tax, yuan / thousand cubic meters; The natural gas contraction coefficient is expressed as a decimal. The natural gas commodity rate is expressed as a decimal.

[0031] In some embodiments, when the output of a certain month in the decline period... Equal to the economic limit output At that time, the remaining economically recoverable reserves are calculated according to the following formula:

[0032] in, The remaining economically recoverable reserves are in tons. The cumulative output during the initial decrease, in tons; This represents the monthly output at the initial decrease, in tons per month. The monthly output during the declining period is expressed in tons per month. This is the initial decrease rate; It is a decreasing exponent.

[0033] In accordance with the SEC's reserve assessment rules, the initial monthly production of each sub-unit corresponding to the assessment benchmark date is used. Decline rate Calculate the monthly output during the decline period using the formula above. Equal to the economic limit output Remaining economically recoverable reserves .

[0034] In some embodiments, the depletion rate is calculated according to the following formula: Loss rate = Annual production / Initial remaining economically recoverable reserves.

[0035] High-loss and low-efficiency units were selected based on their depreciation rates and designated as key monitoring units.

[0036] In some embodiments, the method of the present invention further includes calculating depletion, the calculation formula of which is: Depletion = (Net assets at the beginning of the period + New assets) × Depletion rate.

[0037] In some embodiments, the discounted value of future net cash flows is calculated using the following formula:

[0038] in, The present value of future net cash flows is in ten thousand yuan. The annual output for the assessment period is in ten thousand tons. The price is for oil, in yuan / ton; The variable cost per ton of oil is expressed in yuan / ton. Taxes and fees are calculated per ton of oil, in yuan / ton. Fixed cost, 10,000 yuan; The development cost is 10,000 yuan. The discount rate is expressed as a decimal. The period of economic development is in years.

[0039] The present value of the future net cash flows of key monitoring units is compared with the present value of net assets. When the present value of the future net cash flows of a unit is lower than the present value of net assets, the unit is identified as an impairment unit and an early warning is issued.

[0040] In some embodiments, the method further includes performing the following operations at a predetermined frequency (i.e., every predetermined time interval): updating basic data, calculating the remaining economically recoverable reserves of each sub-unit, and identifying impairment units. This facilitates real-time monitoring of reserve changes and asset impairment risks in each sub-unit of the oilfield, enabling long-term management. A dynamic monitoring and management intelligent device can be established based on a database and using programming tools to promptly warn of sub-units with asset impairment risks, allowing for advance planning of production and operation management. refer to Figure 2 The present invention also proposes a device 100 for integrated management of oilfield reserve assessment and asset impairment early warning, comprising: Module 10 is configured to acquire basic data, which includes net assets. Module 20 is configured to divide the oilfield into multiple sub-units based on basic data; The calculation module 30 is configured to calculate the remaining economically recoverable reserves of each sub-unit based on the basic data. Module 40 is configured to calculate the depletion rate of each sub-unit based on basic data and the remaining economically recoverable reserves of each sub-unit, and to identify the sub-unit with the higher depletion rate among multiple sub-units as the key monitoring unit. The early warning module 50 is configured to calculate the reserve value of each key monitoring unit based on basic data and remaining economically recoverable reserves. The reserve value is the discounted value of future net cash flows. Based on the reserve value and net assets of each key monitoring unit, the module identifies the impairment unit among multiple key monitoring units that has experienced asset impairment and issues early warning information.

[0041] The present invention also proposes a computer device comprising: at least one processor; and a memory storing a computer program executable on the processor, wherein the processor, when executing the program, implements the method as described in any of the above embodiments.

[0042] The present invention also proposes a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in any of the above embodiments.

[0043] The following description is based on specific embodiments.

[0044] Taking a complex fault-block old oilfield A as an example, it has been under development for more than 50 years, with a total of 5 development zones (A1, A2, A3, A4, and A5). The reservoir properties and development characteristics of each development zone are shown in Table 1 below: Table 1: Current Status of Reservoir Physical Properties and Development Characteristics in Various Development Zones of Oilfield A

[0045] Based on the basic data of the five development units of Oilfield A in Table 1, it is determined that the production layers, permeability, development stage, production scale and decline rate of each development unit are quite different. Therefore, Oilfield A is subdivided into five reserve assessment units and asset management units.

[0046] Table 2: Detailed List of Oil and Gas Prices and Taxes

[0047] Based on the dynamic and economic parameters in Tables 1 and 2, the economic limit output and PD reserves of each assessment unit are calculated using the formulas mentioned above. Then, the depletion rate of each unit is calculated, as shown in Table 3 below. It can be seen that there are three development units with high depletion rates. Among them, A3 is a new area. Due to high initial investment and slow construction speed, the asset scale is large and the output is low. After the overall construction is completed, the asset profitability can be improved. Units A4 and A5 are old development areas with depletion rates exceeding 60%, which are typical high depletion, low output and low efficiency units.

[0048] Table 3: Detailed Table of Calculated Reserves and Depletion Results After Subdivision of Oilfield A's Reserves and Asset Units

[0049] Calculate the discounted present value of the future net cash flows of the reserve value for each assessment unit using the formula described above, as follows: Figure 3 As shown in Table 4 below, the results are compared with the present value of assets in each unit to test the asset impairment situation. Units A1 and A2 have no asset impairment risk, while units A3, A4, and A5 all have varying degrees of impairment risk. The asset details within each unit should be reviewed, and inefficient assets should be impaired in a timely manner.

[0050] Table 4: Comparison of Discounted Value of Reserves and Present Value of Assets in Each Development Zone (100 Million Yuan)

[0051] To enable long-term monitoring and management of reserve changes and asset impairment risks across development units, an intelligent management device integrating reserve assessment and asset impairment can be established using programming tools. This device, created in a Windows environment using programming tools, monitors reserve changes in existing reserve units by calling key parameters for reserve assessment and asset impairment, compares the reserve value and present value of asset units, issues early warnings for units with asset impairment risks, and promptly adjusts the reserve asset structure. Figure 4 The diagram shows the interactive interface of the device. Users can input relevant data and instructions to perform calculations for specific items through the interactive interface, and the interface can also display various data, calculation results, and warning information.

[0052] In summary, this invention establishes a method and apparatus for integrated management of old oilfield reserve assessment and asset impairment early warning, based on the differences in production and operation among various development zones within an oilfield. This method provides a detailed assessment of the reserves in each development zone, accurately reflecting the development potential and profitability of reserve assets, and focusing on monitoring the impairment risk of reserve assets in each block, thereby improving the lean management level of oilfield development. This method is applicable to the real-time linked management of reserves and assets in all oilfields, improving the collaborative work efficiency of reserve assessment personnel and financial accounting personnel, and enhancing the differentiated lean management level of the oilfield.

[0053] The solution of the present invention has the following characteristics and effects: (1) It is highly operable. By calling, analyzing, calculating and comparing the basic production and operation data of each development unit in the oilfield, the reserves and assets of each unit are clearly defined, and early warning signals are given to development units with asset impairment risks. (2) It has strong applicability. Through the detailed reserve assessment and real-time asset linkage management of old oilfields, a multi-professional integrated and efficient working platform has been established to improve the level of lean management of oilfield development.

[0054] 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 the program is executed, it can include the processes of the embodiments of the above methods.

[0055] Furthermore, it should be understood that the computer-readable storage medium (e.g., memory) described herein may be volatile memory or non-volatile memory, or may include both volatile memory and non-volatile memory.

[0056] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of the different aspects of the invention as described above exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A method for integrated management of oilfield reserve assessment and asset impairment early warning, characterized in that, include: Obtain basic data, including net assets; Based on the aforementioned basic data, the oilfield is divided into multiple sub-units; The remaining economically recoverable reserves of each sub-unit are calculated based on the aforementioned basic data. Based on the aforementioned basic data and the remaining economically recoverable reserves of each sub-unit, the depletion rate of each sub-unit is calculated, and the sub-unit with the higher depletion rate among multiple sub-units is identified as the key monitoring unit. Based on the aforementioned basic data and the remaining economically recoverable reserves, the reserve value of each key monitoring unit is calculated. The reserve value is the discounted value of future net cash flows. Based on the reserve value and net assets of each key monitoring unit, impairment units that have experienced asset impairment among multiple key monitoring units are identified and early warning information is issued.

2. The method according to claim 1, characterized in that, The basic data includes oilfield data and economic data; the oilfield data includes multiple of the following: reservoir type, development method, development stage, production layer, porosity, permeability, production scale, decline rate, operating cost, new asset scale, and net assets; the economic data includes multiple of the following: oil price, gas price, tax per ton of oil, dissolved gasoline ratio, crude oil commodity rate, natural gas commodity rate, natural gas contraction coefficient, and gas tax.

3. The method according to claim 1, characterized in that, The basic data includes key parameter data for multiple development zones of the oilfield; The division of the oil field into multiple sub-units includes: Based on the differences in key parameter data among multiple development zones, the multiple development zones are divided into multiple sub-units; wherein the key parameter data includes: production level, penetration rate, development stage, production scale, and decline rate.

4. The method according to claim 1, characterized in that, The calculation of the remaining economically recoverable reserves of each sub-unit includes: calculating the economic limit production of each sub-unit based on the basic data, and calculating the remaining economically recoverable reserves of each sub-unit based on the basic data and the economic limit production.

5. The method according to claim 4, characterized in that, Calculate the economic limit output using the following formula: in, The economically maximum production capacity is measured in tons per month. Fixed cost, RMB / month; The price is for oil, in yuan / ton; Taxes and fees are calculated per ton of oil, in yuan / ton. The variable cost per ton of oil is expressed in yuan / ton. For crude oil commodity rate; The dissolved gas-oil ratio is expressed in thousands of cubic meters per ton. Gas price, yuan / thousand cubic meters; Gas tax, yuan / thousand cubic meters; The natural gas contraction coefficient; This refers to the natural gas commodity rate.

6. The method according to claim 5, characterized in that, When the output of a certain month in the declining period equal At that time, the remaining economically recoverable reserves are calculated according to the following formula: in, The remaining economically recoverable reserves are in tons. The cumulative output during the initial decrease, in tons; This represents the monthly output at the initial decrease, in tons per month. The monthly output during the declining period is expressed in tons per month. This is the initial decrease rate; It is a decreasing exponent.

7. The method according to claim 1, characterized in that, Calculate the depletion rate using the following formula: Loss rate = Annual production / Initial remaining economically recoverable reserves.

8. The method according to claim 1, characterized in that, Calculate the discounted value of future net cash flows using the following formula: in, The present value of future net cash flows is in ten thousand yuan. The annual output for the assessment period is in ten thousand tons. The price is for oil, in yuan / ton; The variable cost per ton of oil is expressed in yuan / ton. Taxes and fees are calculated per ton of oil, in yuan / ton. Fixed cost, 10,000 yuan; The development cost is 10,000 yuan. The discount rate; The period of economic development is in years.

9. A device for integrated management of oilfield reserve assessment and asset impairment early warning, characterized in that, include: The acquisition module is configured to acquire basic data, including net assets. The partitioning module is configured to divide the oilfield into multiple sub-units based on the aforementioned basic data; The calculation module is configured to calculate the remaining economically recoverable reserves of each sub-unit based on the basic data. The determination module is configured to calculate the depletion rate of each sub-unit based on the basic data and the remaining economically recoverable reserves of each sub-unit, and to determine the unit with the higher depletion rate among multiple sub-units as the key monitoring unit; The early warning module is configured to calculate the reserve value of each key monitoring unit based on the basic data and the remaining economically recoverable reserves, wherein the reserve value is the discounted value of future net cash flows, and to identify the impairment unit among multiple key monitoring units that has experienced asset impairment based on the reserve value and net assets of each key monitoring unit and issue early warning information.

10. A computer device, comprising: At least one processor; as well as A memory storing a computer program executable on the processor, characterized in that the processor, when executing the program, implements the method as described in any one of claims 1-8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1-8.

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