Dynamic grading evaluation method, device, equipment and medium for benefits of overseas petroleum project

Abstract

The invention discloses a dynamic grading evaluation method, device, equipment and medium for overseas petroleum project benefits. The method comprises the steps of determining a corresponding target overseas petroleum project economic evaluation model according to a contract mode of a target overseas petroleum project; determining dynamic data of economic indexes of the target overseas petroleum project according to the target overseas petroleum project economic evaluation model; constructing a corresponding box whisker graph model according to the dynamic data of the economic indexes; and determining a benefit grading evaluation result of the target overseas petroleum project according to the box whisker graph model. According to the scheme, the economic benefit evaluation result of the target overseas petroleum project can effectively conform to the benefit grading standard of the overseas area, and the economic benefit is objectively evaluated, so that instructive suggestions which are high in robustness and conform to mathematical statistics rules are provided for the overseas petroleum project; and the defect of existing overseas petroleum project benefit grading is overcome.

Description

Technical Field

[0001] This invention relates to the field of overseas oil and gas benefit evaluation technology, and in particular to a dynamic hierarchical evaluation method, apparatus, equipment and medium for the benefits of overseas oil projects. Background Technology

[0002] In recent years, oilfield profitability evaluation results have been categorized into four classes: Class I, Class II, Class III, and Class IV (no profitability). Class I profitability means revenue exceeds total costs; Class II profitability means revenue is equal to or less than total costs, but greater than production costs and taxes; Class IV profitability means after-tax revenue is equal to or less than operating costs. This method of classifying profitability by output is now widely accepted and adopted.

[0003] However, since overseas oil projects use benchmark rates of return as the primary evaluation indicator, emphasizing profitability, the aforementioned profitability-production classification is unsuitable for grading overseas project profitability. Simultaneously, the rigid increase in operating costs at older overseas oilfields has led to a decline in both production and profitability for projects with significant historical contributions; projects with high investment returns are facing increasingly stringent overseas policies, rising profit demands, and stricter extension conditions and tax regulations; and the incomplete oil and gas industry chain in inland and some offshore natural gas projects limits production and efficiency improvements. All these factors constrain the profitability of overseas oil projects. Therefore, establishing profitability grading standards for large-scale, high-risk overseas oil projects to guide investment direction and enhance profitability is a crucial issue that urgently needs to be addressed. Summary of the Invention

[0004] This invention provides a method, apparatus, equipment, and medium for dynamic hierarchical evaluation of the benefits of overseas oil projects, so as to establish a hierarchical evaluation of the benefits of overseas oil projects and guide investment in overseas oil projects.

[0005] According to one aspect of the present invention, a dynamic hierarchical evaluation method for the benefits of overseas oil projects is provided, the method comprising:

[0006] Determine the corresponding economic evaluation model for the target overseas oil project based on the contract model of the target overseas oil project.

[0007] Dynamic data of economic indicators for the target overseas oil project are determined based on the economic evaluation model of the target overseas oil project.

[0008] Construct corresponding box-and-whisker diagram models based on dynamic data of economic indicators;

[0009] The benefit classification and evaluation results of the target overseas oil project are determined based on the box-and-whisker diagram model.

[0010] According to another aspect of the present invention, a dynamic grading evaluation device for the benefits of overseas oil projects is provided, the device comprising:

[0011] The first determination module is used to determine the corresponding economic evaluation model of the target overseas oil project based on the contract model of the target overseas oil project.

[0012] The second determination module is used to determine the dynamic data of the economic indicators of the target overseas oil project based on the economic evaluation model of the target overseas oil project.

[0013] The box-and-whisker plot model building module is used to build corresponding box-and-whisker plot models based on dynamic data of economic indicators.

[0014] The third determination module is used to determine the benefit grading evaluation results of the target overseas oil project based on the box-and-whisker diagram model.

[0015] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0016] At least one processor; and

[0017] A memory that is communicatively connected to at least one processor; wherein,

[0018] The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to execute the dynamic grading evaluation method for the benefits of overseas oil projects according to any embodiment of the present invention.

[0019] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for causing a processor to execute and implement a dynamic grading evaluation method for the benefits of overseas oil projects according to any embodiment of the present invention.

[0020] The technical solution of this invention determines the corresponding economic evaluation model for the target overseas oil project based on the contract model, ensuring that the economic benefit evaluation of the target overseas oil project conforms to the benefit grading standards of the overseas region. It determines the dynamic data of the economic indicators of the target overseas oil project based on the economic evaluation model, enabling the acquisition of historical or current dynamic data of various economic indicators, thereby improving the accuracy of the evaluation results. It constructs a corresponding box-and-whisker diagram model based on the dynamic data of the economic indicators, facilitating the visualization function of the box-and-whisker diagram model to intuitively and conveniently observe the statistical laws of the economic benefit indicators, presenting reasonable data and outliers in the dynamic data of the economic indicators, thus objectively evaluating the economic benefits of the target overseas oil project. Finally, it determines the benefit grading evaluation results of the target overseas oil project based on the box-and-whisker diagram model, enabling the formulation of grading standards based on the abnormal thresholds or level thresholds of various key economic indicators, providing robust and statistically consistent guidance to compensate for the shortcomings of existing overseas oil project benefit grading methods.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0023] Figure 1 A flowchart illustrating a dynamic hierarchical evaluation method for the benefits of overseas oil projects provided in Embodiment 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of an economic evaluation model for a target overseas oil project's mineral tax contract, provided in Embodiment 1 of the present invention.

[0025] Figure 3 This is a schematic diagram of an economic evaluation model for a product sharing contract of a target overseas oil project, provided in Embodiment 1 of the present invention.

[0026] Figure 4 This is a schematic diagram of an economic evaluation model for a service contract of a target overseas oil project, provided in Embodiment 1 of the present invention.

[0027] Figure 5This is a schematic diagram of a box-and-whisker diagram model of a target overseas oil project provided in Embodiment 1 of the present invention;

[0028] Figure 6 This is a schematic diagram of a box plot model of net profit per barrel of oil for a target overseas oil project provided in Embodiment 1 of the present invention;

[0029] Figure 7 This is a schematic diagram of a barrel-of-oil free cash flow box diagram model for a target overseas oil project provided in Embodiment 1 of the present invention;

[0030] Figure 8 This is a schematic diagram of a net present value ratio box plot model for a target overseas oil project provided in Embodiment 1 of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of a dynamic hierarchical evaluation device for the benefits of overseas oil projects provided in Embodiment 2 of the present invention;

[0032] Figure 10 This is a schematic diagram of an electronic device for implementing a dynamic hierarchical evaluation method for the benefits of overseas oil projects, as provided in Embodiment 3 of the present invention. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] It is understood that the data involved in this technical solution (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and related provisions.

[0036] Example 1

[0037] Figure 1 This is a flowchart illustrating a dynamic grading and evaluation method for the benefits of overseas oil projects, provided in Embodiment 1 of the present invention. This embodiment of the invention is applicable to situations where the economic benefits and output of overseas oil projects are assessed and classified. This method can be executed by a dynamic grading and evaluation device for the benefits of overseas oil projects. This device can be implemented in hardware and / or software and can be configured in an electronic device that implements the dynamic grading and evaluation method for the benefits of overseas oil projects. Figure 1 As shown, the method includes:

[0038] S101. Determine the corresponding economic evaluation model for the target overseas oil project based on the contract model of the target overseas oil project.

[0039] In this embodiment of the invention, the target overseas oil project refers to a project involving the exploration, extraction, and exploitation of resources such as oil and natural gas in overseas regions, typically characterized by high risk and large investment. The contract model refers to the type of project contract signed for the target overseas oil project, typically including mining tax contracts, product sharing contracts, and service contracts. The economic evaluation model refers to a model established for evaluating the economics of overseas oil projects, used to analyze factors such as costs, revenues, profits, and taxes.

[0040] Specifically, it involves acquiring contract models for target overseas oil projects related to resources such as oil and gas in overseas regions, and, assuming that future market and other influencing factors remain stable, constructing economic evaluation models corresponding to the target overseas oil projects based on different contract models to assess the economic situation of overseas oil projects.

[0041] As an option, determine the corresponding economic evaluation model for the target overseas oil project based on the contract model of the target overseas oil project, including the following steps A1-A2:

[0042] Step A1: Based on the contract model of the target overseas oil project, determine the logical relationships of taxes such as cost recovery, profit sharing, service fees, mining tax, and income tax.

[0043] Step A2: Based on logical relationships, construct the corresponding economic evaluation model for the target overseas oil project using the discounted cash flow method.

[0044] In this embodiment of the invention, cost recovery refers to the investment and operating costs incurred by the contractor of the target overseas oil project in oil and gas exploration and development in overseas areas, as well as the operating costs incurred during the production phase. The contractor is allowed to recover expenditures according to regulations, which can be based on a certain percentage of oilfield production. Profit sharing refers to the percentage of profit oil received by the contractor of the target overseas oil project according to the signed contract. Service fee refers to remuneration, i.e., the remuneration received by the target overseas oil project in overseas areas after providing technical services such as exploration, development, and production. Mineral tax refers to mining area usage fees, representing the fees paid by the target overseas oil project to the overseas regional government when extracting oil in overseas areas, which can be paid in kind or in cash. Income tax refers to the fees levied by the overseas regional government when the target overseas oil project obtains oil profits in overseas areas.

[0045] Logical relationships refer to the allocation of oil production resources based on the contractual models signed between the target overseas oil project and the overseas regional government. Discounted cash flow (DCF) is a financial analysis method for evaluating target overseas oil projects. It estimates the net present value (NPV) of the target overseas oil project by predicting its future cash flows over a certain period and discounting these future cash flows to their present value using an appropriate discount rate.

[0046] Specifically, based on the contracts signed for the target overseas oil projects, the logical relationships between the project's revenue and cost recovery, profit sharing, service fees, mining taxes, and income taxes are determined. Based on these logical relationships, the cash flows of the overseas oil projects over a certain future period are determined, and then an economic evaluation model for the target overseas oil projects is established using the discounted cash flow method.

[0047] As an optional approach, based on logical relationships, a discounted cash flow method can be used to construct an economic evaluation model for the target overseas oil project, including the following steps B1-B3:

[0048] Step B1: If the contract type is a mining tax contract, then construct an economic evaluation model for the mining tax contract based on the logical relationship between sales revenue and tax calculation.

[0049] Step B2: If the contract model is a product sharing contract, then construct an economic evaluation model for the product sharing contract based on the logical relationship between cost recovery and profit sharing.

[0050] Step B3: If the contract type is a service contract, then construct an economic evaluation model for the technology service contract based on the logical relationship between cost recovery and fee recovery.

[0051] In this embodiment of the invention, sales revenue refers to the income that the target overseas oil project can obtain through the sale of oil. Tax calculation refers to the method of calculating the taxes that the target overseas oil project needs to pay to the overseas regional government when conducting oil exploration and development in overseas regions, including the calculation methods for mining tax and income tax.

[0052] Specifically, if the target overseas oil project is contracted under a mineral tax contract, then based on the characteristics of such contracts, the oil production resources are allocated according to the logical relationship between sales revenue and tax calculations to determine the income of the target overseas oil project. Under a mineral tax contract, after obtaining a license, the contractor of the target overseas oil project possesses the exclusive right to explore, develop, and produce oil and gas in the overseas region. The overseas regional government and other oil companies no longer have operating rights, management rights, or control over oil and gas in that region. After obtaining resources such as crude oil and natural gas, the contractor needs to pay mineral tax, income tax, and other taxes to the overseas regional government. The content of these taxes is controlled through legislation. The income source of the target overseas oil project is the sales revenue of oil and other resources. Tax expenses are obtained through tax calculations, and the relevant expense deductions include mineral tax, operating costs, depreciation, and amortization. Furthermore, an economic evaluation model for the mineral tax contract of the target overseas oil project is constructed as follows: Figure 2 As shown, the calculation formula is as follows:

[0053] CI t =Sales Revenue t

[0054] CO t =Tax t +Capex t +Opex t

[0055] Among them, CI t For overseas oil project revenue, i.e., sales revenue t CO t Expenditure for targeted overseas oil projects, including taxes t Capital expenditures (Capex) t and operating expenses Opex t .

[0056] If the target overseas oil project is contracted under a production sharing agreement (PPA), then based on the characteristics of PPAs, the oil production resources are allocated according to the logical relationship of cost recovery and profit sharing to determine the project's proceeds. PPAs feature cost recovery and profit sharing; most PPAs have a cost recovery cap, meaning a certain percentage of revenue is considered a cost recovery limit. This cap varies across different overseas regions. After cost recovery, the remaining oil production is shared between the overseas regional government and the contractor, with the sharing ratio determined through negotiation. Therefore, an economic evaluation model for the target overseas oil project's PPA is constructed as follows: Figure 3 As shown, the calculation formula is as follows:

[0057] CI t =Cost Oil t +Profit Oil t

[0058] CO t =Tax t +Capex t +Opex t

[0059] Among them, CI t Including cost recovery of oil t Profit Oil t .

[0060] If the target overseas oil project is contracted under a service contract model, then based on the characteristics of service contracts, the oil production resources are allocated according to the logical relationship of cost recovery and fee recovery to determine the income of the target overseas oil project. The income distribution method of a service contract features cost recovery and the contractor's acquisition of fees. After the oil production has undergone cost recovery, the contractor of the target overseas oil project can obtain fees based on the fee per barrel of oil and the oil field's output. The fee per barrel of oil is generally determined through negotiation between the overseas regional government and the contractor. Furthermore, an economic evaluation model for the service contract of the target overseas oil project is constructed as follows: Figure 4 As shown, the calculation formula is as follows:

[0061] CI t =Petroleum Costs t +Remuneration Fee t

[0062] CO t =Tax t +Capex t +Opex t

[0063] Among them, CI t Including petroleum investment and cost recovery (Petroleum Costs) t and Remuneration Fee t .

[0064] S102. Determine the dynamic data of the economic indicators of the target overseas oil project based on the economic evaluation model of the target overseas oil project.

[0065] In this embodiment of the invention, economic indicators refer to indicators used to evaluate the profitability and output of a target overseas oil project. Economic indicators include at least: net profit per barrel of oil, free cash flow per barrel of oil, and net present value ratio. Among these, net profit per barrel of oil is the main indicator for measuring the operating efficiency of the target overseas oil project, referring to the retained profit after deducting income tax from the total profit as required by regulations. For example,

[0066] Operating profit = Operating revenue - Operating cost - Operating taxes and surcharges;

[0067] Other business profit = Other business revenue - Other business expenses;

[0068] Operating profit = Profit from main business + Profit from other business - Operating expenses - Administrative expenses - Financial expenses;

[0069] Total profit = Operating profit + Investment income + Subsidy income + Non-operating income - Non-operating expenses;

[0070] Net profit = Total profit - Income tax;

[0071] Net profit per barrel of oil = Total profit / Total output.

[0072] Free cash flow per barrel of oil refers to the remaining cash flow generated by a target overseas oil project after meeting its investment needs. This cash flow represents the maximum amount of cash that can be allocated to contractors without affecting the project's continued development; in other words, it represents the maximum potential return allocated to contractors. For example,

[0073] Free cash flow per barrel of oil = Free cash flow / Total output.

[0074] Net Present Value (NPVR) is the net present value generated from the present value of a unit of initial investment in a target overseas oil project, reflecting the efficiency of capital utilization. For example, the formula for calculating NPVR is:

[0075]

[0076] Where FNPV is the Financial Net Present Value (FNPV) of the target overseas oil project, CI is the cash inflow, CO is the cash outflow, and i c The benchmark discount rate is used. The net present value will increase with the benchmark discount rate i. c The benchmark rate of return for a target overseas oil project will vary depending on factors such as the project's capital scope, risk level, cost of capital, inflation, opportunity cost, and corporate strategy.

[0077] Dynamic data refers to the data on the changes in economic indicators of a target overseas oil project over time. Dynamic data can be historical actual dynamic data of various economic indicators of the target overseas oil project over a past period, with the average of these dynamic data calculated over recent years. For example, dynamic data could be the actual data for each year of the target overseas oil project's economic indicators in recent years; or the actual historical data for each month of the target overseas oil project's economic indicators in the past year. Dynamic data can also be the actual data on the continuous changes in various economic indicators of the target overseas oil project over the current period.

[0078] Specifically, based on the time value of money theory and the economic evaluation model established for the target overseas oil project, parameters such as annual investment, initial production, annual output, operating costs, and sales rate of the target overseas oil project are obtained to calculate dynamic data for various economic indicators of the project. For example, based on the economic evaluation model, historical actual data of the target overseas oil project's net profit per barrel of oil for each year in recent years can be calculated; or actual data on the target overseas oil project's net profit per barrel of oil, which changes continuously over time, can be calculated.

[0079] S103. Construct the corresponding box-and-whisker diagram model based on the dynamic data of economic indicators.

[0080] In this embodiment of the invention, the box-and-whisker diagram model refers to a tool for visualizing dynamic data of a target overseas oil project, used to display the distribution of dynamic datasets, thereby determining the economic benefits of the target overseas oil project. For example, Figure 5 A schematic diagram of a box-and-whisker diagram model for a target overseas oil project.

[0081] Specifically, errors arise in the calculation of dynamic data for target overseas oil projects, and these errors propagate throughout various operations and analyses, leading to corresponding errors in the evaluation process. Furthermore, the evaluation process itself introduces and amplifies data errors. Therefore, based on data quality control theory and by constructing a robust box-and-whisker diagram model with robust statistical properties using dynamic data of the target overseas oil project's economic indicators, the distribution characteristics of the dynamic data can be clearly represented.

[0082] S104. Determine the benefit classification and evaluation results of the target overseas oil project based on the box-and-whisker diagram model.

[0083] In this embodiment of the invention, benefit grading evaluation refers to classifying and evaluating the economic benefits of overseas oil projects to understand their profitability. Overseas oil projects typically use a benchmark rate of return as the primary evaluation indicator, i.e., the net cash flow (cash inflow minus cash outflow) as the evaluation basis, emphasizing benefit priority and positive cash flow and net profit. The cash inflow of overseas oil projects is generally sales revenue, while the cash outflow is the sum of operating costs, investment, and various taxes, equivalent to total cost. The benefit grading evaluation result refers to determining the benefit level classification of the overseas oil project after conducting a benefit grading evaluation.

[0084] Specifically, based on the box-and-whisker diagram model constructed for the target overseas oil project, the dynamic data distribution of economic indicators within the model is determined. According to the upper and lower hubs representing the first and last 25% of the dynamic data in the box-and-whisker diagram model, the economic benefit output of the target overseas oil project is divided into four levels, serving as the evaluation result for the project's benefit grading. The data distribution range within the box-and-whisker diagram model is strongly correlated with oil prices; low oil prices result in poorer project benefits, leading to a lower upper limit for the indicators, while high oil prices have the opposite effect.

[0085] As an option, the benefit classification evaluation results of the target overseas oil project are determined based on the box-and-whisker diagram model, including the following steps C1-C2:

[0086] Step C1: Determine the data distribution characteristics and data statistics based on the box-and-whisker diagram model.

[0087] Step C2: Determine the benefit grading evaluation results of the target overseas oil project based on the data distribution characteristics and data statistics.

[0088] In this embodiment of the invention, data distribution characteristics refer to the distribution of data within the box-and-whisker diagram model, typically represented by quartiles. Quartiles include the first, second, and third quartiles. The first quartile is the 25th percentile of all values ​​in the model arranged in ascending order; the second quartile is the 50th percentile; and the third quartile is the 75th percentile. For example, for the data column {A} in the box-and-whisker diagram model... i The first quartile, Q1, is represented as:

[0089] Q1 = A j (A j In A i (The data is arranged in ascending order and is ranked in the 25th percentile)

[0090] The second quartile, Q2, is represented as:

[0091] Q2 = A j (A j In A i (The data is arranged in ascending order and is in the 50th percentile)

[0092] The third quartile, Q3, is represented as:

[0093] Q3 = A j (A j In A i (The data is arranged in ascending order and is ranked in the 75th percentile)

[0094] Data statistics include at least the median, interquartile range (interquartile range), skewness, maximum observation, minimum observation, and outliers. The median represents the data center location of the indicator sample. The interquartile range (interquartile range) represents the dispersion of the indicator sample data, represented by the height of the box. The maximum observation is the largest reasonable data point in the indicator sample, represented by an extended straight line, with the top of the line representing the largest non-outlier observation. The minimum observation is the smallest reasonable data point in the indicator sample, represented by an extended straight line, with the bottom of the line representing the smallest non-outlier observation. If there are no outliers, the maximum observation is the top of the upper line, and the minimum observation is the bottom of the lower line. Skewness is the degree of deviation of the indicator sample data center, represented by the position of the horizontal line within the box.

[0095] Outliers include coarse outliers exceeding 1.5 times the interquartile range (INR) of the top or bottom edge of the box, and extreme outliers exceeding 3 times the INR of the top or bottom edge. INR and INR can be used as criteria for identification. When the data column follows a normal distribution, the box-and-whisker plot model can contain 95% of the total data volume; therefore, it can represent outliers beyond 95% in detail. Outliers can be divided into two categories based on their nature: correct outliers and outliers containing gross errors.

[0096] Specifically, based on the box-and-whisker diagram model constructed for the target overseas oil project, the data distribution characteristics of the dynamic economic indicators of the target overseas oil project are determined, and at least the median, inner quartile, skewness, maximum observation value, minimum observation value, and outliers of the dynamic data are determined and used as data statistics for the dynamic data. Based on the data distribution characteristics and data statistics of the dynamic data, the economic benefits and output of the target overseas oil project are evaluated, and the economic benefits and output are classified into levels, which serve as the results of the benefit grading evaluation of the target overseas oil project.

[0097] As an option, the benefit classification evaluation results of the target overseas oil project can be determined based on the box-and-whisker diagram model, including:

[0098] By comparing box-and-whisker diagram models corresponding to multiple economic indicators, the benefit grading evaluation results of the target overseas oil project are determined.

[0099] Specifically, since the economic indicators of the target overseas oil project include net profit per barrel of oil, free cash flow per barrel of oil, and net present value (NPV) ratio, a box-and-whisker diagram model for net profit per barrel of oil is established based on the dynamic data of net profit per barrel of oil, a box-and-whisker diagram model for free cash flow per barrel of oil is established based on the dynamic data of free cash flow per barrel of oil, and a box-and-whisker diagram model for NPV ratio is established based on the dynamic data of NPV ratio. Furthermore, based on these models, the economic indicators of the target overseas oil project are categorized into benefit classes, and horizontal comparisons are made after categorization to more precisely determine the benefit classification and evaluation results of the target overseas oil project.

[0100] For example, a box plot model of the net profit per barrel of oil from an overseas oil project in a certain year is as follows: Figure 6 As shown, the free cash flow box diagram model for oil barrels is as follows: Figure 7 As shown, the net present value ratio box plot model is as follows: Figure 8 As shown in Table 1, the benefit breakdown of net profit per barrel of oil from overseas oil projects is shown in Table 2, and the benefit breakdown of net present value (NPV) rate from overseas oil projects is shown in Table 3.

[0101] Table 1. Profit Sharing of Net Profit per Barrel of Oil from Overseas Oil Projects

[0102]

[0103] Table 2. Benefit Allocation of Free Cash Flow per Barrel of Oil from Overseas Oil Projects

[0104]

[0105] Table 3. Benefit Allocation Table for Net Present Value Rate of Overseas Oil Projects

[0106]

[0107] The technical solution of this invention determines the corresponding economic evaluation model for the target overseas oil project based on the contract model, ensuring that the economic benefit evaluation of the target overseas oil project conforms to the benefit grading standards of the overseas region. It determines the dynamic data of the economic indicators of the target overseas oil project based on the economic evaluation model, enabling the acquisition of historical or current dynamic data of various economic indicators, thereby improving the accuracy of the evaluation results. It constructs a corresponding box-and-whisker diagram model based on the dynamic data of the economic indicators, facilitating the visualization function of the box-and-whisker diagram model to intuitively and conveniently observe the statistical laws of the economic benefit indicators, presenting reasonable data and outliers in the dynamic data of the economic indicators, thus objectively evaluating the economic benefits of the target overseas oil project. Finally, it determines the benefit grading evaluation results of the target overseas oil project based on the box-and-whisker diagram model, enabling the formulation of grading standards based on the abnormal thresholds or level thresholds of various key economic indicators, providing robust and statistically consistent guidance to compensate for the shortcomings of existing overseas oil project benefit grading methods.

[0108] Example 2

[0109] Figure 9 This is a schematic diagram of a dynamic grading evaluation device for the benefits of overseas oil projects provided in Embodiment 2 of the present invention. This embodiment of the invention is applicable to situations where the economic benefits and output of overseas oil projects are assessed and classified. The device can be implemented in hardware and / or software and can be configured in electronic equipment implementing the dynamic grading evaluation method for the benefits of overseas oil projects. Figure 9 As shown, the device includes:

[0110] The first determining module 201 is used to determine the corresponding economic evaluation model of the target overseas oil project based on the contract model of the target overseas oil project.

[0111] The second determining module 202 is used to determine dynamic data of economic indicators of the target overseas oil project based on the economic evaluation model of the target overseas oil project.

[0112] Box-and-whisker diagram model building module 203 is used to build corresponding box-and-whisker diagram models based on dynamic data of economic indicators;

[0113] The third determination module 204 is used to determine the benefit grading evaluation results of the target overseas oil project based on the box-and-whisker diagram model.

[0114] Optionally, the first determining module 201 includes:

[0115] The logical relationship determination submodule is used to determine the logical relationships of taxes such as cost recovery, profit sharing, service fees, mining tax and income tax based on the contract model of the target overseas oil project.

[0116] The economic evaluation model construction submodule is used to construct the corresponding economic evaluation model for overseas oil projects based on logical relationships and using the discounted cash flow method.

[0117] As an optional feature, the economic evaluation model construction submodule is specifically used for:

[0118] If the contract model is a mining tax contract, then an economic evaluation model for the mining tax contract is constructed based on the logical relationship between sales revenue and tax calculation.

[0119] If the contract model is a product sharing contract, then an economic evaluation model for the product sharing contract should be constructed based on the logical relationship between cost recovery and profit sharing.

[0120] If the contract model is a service contract, then an economic evaluation model for the technology service contract is constructed based on the logical relationship between cost recovery and fee recovery.

[0121] As an option, the third determining module 204 includes:

[0122] The data determination submodule is used to determine the data distribution characteristics and data statistics based on the box-and-whisker diagram model.

[0123] The graded evaluation determination submodule is used to determine the graded evaluation results of the target overseas oil project based on the data distribution characteristics and data statistics.

[0124] As an option, data statistics may include at least the median, interquartile range, skewness, maximum observation, minimum observation, and outliers.

[0125] As an option, economic indicators should include at least: net profit per barrel of oil, free cash flow per barrel of oil, and net present value ratio.

[0126] As an option, the benefit classification evaluation results of the target overseas oil project can be determined based on the box-and-whisker diagram model, including:

[0127] By comparing box-and-whisker diagram models corresponding to multiple economic indicators, the benefit grading evaluation results of the target overseas oil project are determined.

[0128] The technical solution of this invention determines the corresponding economic evaluation model for the target overseas oil project based on the contract model, ensuring that the economic benefit evaluation of the target overseas oil project conforms to the benefit grading standards of the overseas region. It determines the dynamic data of the economic indicators of the target overseas oil project based on the economic evaluation model, enabling the acquisition of historical or current dynamic data of various economic indicators, thereby improving the accuracy of the evaluation results. It constructs a corresponding box-and-whisker diagram model based on the dynamic data of the economic indicators, facilitating the visualization function of the box-and-whisker diagram model to intuitively and conveniently observe the statistical laws of the economic benefit indicators, presenting reasonable data and outliers in the dynamic data of the economic indicators, thus objectively evaluating the economic benefits of the target overseas oil project. Finally, it determines the benefit grading evaluation results of the target overseas oil project based on the box-and-whisker diagram model, enabling the formulation of grading standards based on the abnormal thresholds or level thresholds of various key economic indicators, providing robust and statistically consistent guidance to compensate for the shortcomings of existing overseas oil project benefit grading methods. The dynamic grading evaluation device for the benefits of overseas oil projects provided in this embodiment of the invention can execute the dynamic grading evaluation method for the benefits of overseas oil projects provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0129] Example 3

[0130] Figure 10 This is a schematic diagram of an electronic device for implementing a dynamic hierarchical evaluation method for the benefits of overseas oil projects, as provided in Embodiment 3 of the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0131] like Figure 10As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0132] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0133] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, central processing unit (CPU), graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the dynamic grading evaluation method for the benefits of overseas oil projects.

[0134] In some embodiments, the dynamic grading and evaluation method for the benefits of overseas oil projects can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the dynamic grading and evaluation method for the benefits of overseas oil projects described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the dynamic grading and evaluation method for the benefits of overseas oil projects by any other suitable means (e.g., by means of firmware).

[0135] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0136] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0137] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0138] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0139] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0140] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0141] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0142] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A dynamic hierarchical evaluation method for the benefits of overseas oil projects, characterized in that, The method includes: Determine the corresponding economic evaluation model for the target overseas oil project based on the contract model of the target overseas oil project. Dynamic data of economic indicators for the target overseas oil project are determined based on the economic evaluation model of the target overseas oil project. Construct a corresponding box-and-whisker diagram model based on the dynamic data of the aforementioned economic indicators; The benefit grading evaluation results of the target overseas oil project are determined based on the box-and-whisker diagram model.

2. The method according to claim 1, characterized in that, Based on the contract model of the target overseas oil project, determine the corresponding economic evaluation model for the target overseas oil project, including: Based on the contract model of the target overseas oil project, determine the logical relationship of taxes such as cost recovery, profit sharing, service fees, mining tax and income tax; Based on the aforementioned logical relationship, the discounted cash flow method is used to construct the corresponding economic evaluation model for the target overseas oil project.

3. The method according to claim 2, characterized in that, Based on the aforementioned logical relationship, an economic evaluation model for the target overseas oil project is constructed using the discounted cash flow method, including: If the contract model is a mining tax contract, then an economic evaluation model for the mining tax contract is constructed based on the logical relationship between sales revenue and tax calculation. If the contract model is a product sharing contract, then an economic evaluation model for the product sharing contract is constructed based on the logical relationship between cost recovery and profit sharing. If the contract model is a service contract, then an economic evaluation model for the technology service contract is constructed based on the logical relationship between cost recovery and fee recovery.

4. The method according to claim 1, characterized in that, The benefit grading evaluation results of the target overseas oil project are determined based on the box-and-whisker diagram model, including: The data distribution characteristics and data statistics are determined based on the box-and-whisker diagram model. The benefit grading evaluation results of the target overseas oil project are determined based on the data distribution characteristics and data statistics.

5. The method according to claim 4, characterized in that, The data statistics include at least the median, interquartile range, skewness, maximum observation, minimum observation, and outliers.

6. The method according to claim 4 or 5, characterized in that, The economic indicators include at least: net profit per barrel of oil, free cash flow per barrel of oil, and net present value ratio.

7. The method according to claim 6, characterized in that, The benefit grading evaluation results of the target overseas oil project are determined based on the box-and-whisker diagram model, including: By comparing box-and-whisker diagram models corresponding to multiple economic indicators, the benefit grading evaluation results of the target overseas oil project are determined.

8. A dynamic hierarchical evaluation device for the benefits of overseas oil projects, characterized in that, The device includes: The first determination module is used to determine the corresponding economic evaluation model of the target overseas oil project based on the contract model of the target overseas oil project. The second determining module is used to determine dynamic data of the economic indicators of the target overseas oil project based on the economic evaluation model of the target overseas oil project. The box-and-whisker diagram model building module is used to build the corresponding box-and-whisker diagram model based on the dynamic data of the economic indicators. The third determining module is used to determine the benefit grading evaluation results of the target overseas oil project based on the box-and-whisker diagram model.

9. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the dynamic grading evaluation method for the benefits of overseas oil projects as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the dynamic grading evaluation method for the benefits of overseas oil projects as described in any one of claims 1-7.

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