Method, device, equipment and medium for calibrating new production capacity of crude oil in medium-high permeability oil reservoir

Abstract

The application discloses a kind of medium-high permeability reservoir crude oil new build capacity calibration method, device, equipment and medium.The method comprises: determining the capacity type of the oil area to be mined;Determine reference oil area based on capacity type, and obtain the historical oil production data corresponding to reference oil area;The historical oil production data is processed, the monthly decline rate of average single well daily oil production is obtained, and the average single well daily oil production of target month in the year of production of the oil area to be mined is determined;Based on the monthly decline rate of average single well daily oil production, the average single well daily oil production of multiple months, target month and the pre-set production parameter, the new build capacity of the oil area to be mined is determined.The problem that the oil production capacity of the oil area is predicted by the liquid production intensity method in the prior art, and the coincidence rate with the actual annual output in the second year of production is low is solved, the prediction accuracy of the oil production capacity of the oil area is improved, and the effect of ensuring the stability of the oil area production is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil and gas exploration and development, and particularly relates to a method, device, equipment and medium for calibrating new production capacity of crude oil in a medium-high permeability reservoir. BACKGROUND

[0002] With the development of oil and gas exploration and development technology, oilfield production capacity prediction has become an important work for developing oilfields, and the prediction result of the production of new wells in oilfields is directly related to whether the crude oil production capacity construction block is profitable.

[0003] At present, the prediction method of oilfield production capacity is usually to use the liquid production intensity method to calculate the daily production of the oil well under the unit production pressure difference through the liquid production intensity, and to predict the initial production capacity of the single well by comprehensively considering the water content. However, with the influence of multiple factors such as resource deterioration and engineering technical conditions, this prediction method has uncontrollability, which leads to inaccurate prediction of oilfield production capacity, and further affects the stability of oilfield production. SUMMARY

[0004] The present application provides a method, device, equipment and medium for calibrating new production capacity of crude oil in a medium-high permeability reservoir, to improve the accuracy of oilfield production capacity prediction and ensure the stability of oilfield production.

[0005] According to one aspect of the present application, a method for calibrating new production capacity of crude oil in a medium-high permeability reservoir is provided, which comprises:

[0006] determining the production capacity type of the to-be-developed oilfield;

[0007] determining a reference oilfield based on the production capacity type, and obtaining historical oil production data corresponding to the reference oilfield; wherein the reference oilfield includes the to-be-developed oilfield or a similar oilfield associated with the to-be-developed oilfield; the historical oil production data includes the average daily oil production of a single well in at least one production year and a plurality of months;

[0008] processing the historical oil production data to obtain the monthly decline rate of the average daily oil production of a single well, and determining the average daily oil production of a single well in the target month of the production year of the to-be-developed oilfield;

[0009] determining the new production capacity of the to-be-developed oilfield based on the monthly decline rate of the average daily oil production of a single well, the plurality of months, the average daily oil production of a single well in the target month, and the pre-set production parameters.

[0010] According to another aspect of the present application, a device for calibrating new production capacity of crude oil in a medium-high permeability reservoir is provided, which comprises:

[0011] a production capacity type determination module for determining the production capacity type of the to-be-developed oilfield;

[0012] The reference oil area determination module is configured to determine a reference oil area based on the production capacity type and obtain historical oil production data corresponding to the reference oil area, wherein the reference oil area includes the to-be-produced oil area or a similar oil area associated with the to-be-produced oil area, and the historical oil production data includes average single-well daily oil production of a plurality of months in at least one production year;

[0013] The parameter determination module is configured to process the historical oil production data to obtain a monthly decline rate of the average single-well daily oil production, and determine average single-well daily oil production of the to-be-produced oil area in a target month of the production year;

[0014] The new production capacity determination module is configured to determine the new production capacity of the to-be-produced oil area based on the monthly decline rate of the average single-well daily oil production, the plurality of months, the average single-well daily oil production of the target month, and a pre-set production parameter.

[0015] According to another aspect of the present application, an electronic device is provided, which comprises:

[0016] at least one processor; and

[0017] a memory connected to the at least one processor in communication; wherein

[0018] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the method for calibrating new production capacity of crude oil in a medium-high permeability oil reservoir according to any one of the embodiments of the present application.

[0019] According to another aspect of the present application, a computer readable storage medium is provided, which stores computer instructions for enabling a processor to implement the method for calibrating new production capacity of crude oil in a medium-high permeability oil reservoir according to any one of the embodiments of the present application when executed by the processor.

[0020] The technical scheme of the embodiment of the present application determines the productivity type of the to-be-oil-producing area; determines a reference oil area based on the productivity type, and obtains historical oil production data corresponding to the reference oil area; processes the historical oil production data to obtain a monthly decline rate of average daily oil production of a single well, and determines the average daily oil production of a single well of the to-be-oil-producing area in a target month of the year of production; and determines the new productivity of the to-be-oil-producing area based on the monthly decline rate of average daily oil production of a single well, a plurality of months, the average daily oil production of a single well of the target month, and a pre-set production parameter, thereby solving the problem that the coincidence rate of the oil production capacity of the oil area predicted by the liquid production intensity method in the prior art with the actual annual yield in the second year of production is low, and realizing that the new productivity of the to-be-oil-producing area is determined by analyzing the productivity type of the to-be-oil-producing area, obtaining the historical oil production data that can reflect the oil area situation of the to-be-oil-producing area, determining the monthly decline rate of average daily oil production of a single well based on the historical oil production data, and combining the average daily oil production of a single well of the to-be-oil-producing area in the target month of the year of production, so that the linkage of the productivity and the yield is realized, the new productivity can truly reflect the actual production capacity of the to-be-oil-producing area in the second year of production, the accuracy of the prediction of the oil production capacity of the oil area is improved, and the technical effect of ensuring the stability of the production of the oil area is achieved.

[0021] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a flow chart of a method for calibrating new oil productivity of crude oil in a middle-high permeability reservoir according to the first embodiment of the present application;

[0024] Figure 2 is a schematic diagram of a monthly decline curve of average daily oil production of a single well in water drive development according to the second embodiment of the present application;

[0025] Figure 3 is a schematic diagram of a monthly decline curve of average daily oil production of a single well in chemical flooding development according to the second embodiment of the present application;

[0026] Figure 4 is a structural schematic diagram of a device for calibrating new oil productivity of crude oil in a middle-high permeability reservoir according to the third embodiment of the present application;

[0027] Figure 5It is a structural schematic diagram of an electronic device for implementing a new production capacity calibration method for crude oil in a medium-high permeability reservoir according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Embodiment one

[0031] Figure 1 It is a flowchart of a new production capacity calibration method for crude oil in a medium-high permeability reservoir according to the first embodiment of the present application. The present embodiment can be applicable to the case of calibrating the production capacity of an oil area to be exploited. The method can be executed by a new production capacity calibration device for crude oil in a medium-high permeability reservoir. The new production capacity calibration device for crude oil in a medium-high permeability reservoir can be realized in the form of hardware and / or software, and can be configured in a computing device. As shown in the figure, the method comprises: Figure 1

[0032] S110, determining the production capacity type of the oil area to be exploited.

[0033] The oil area to be exploited can be an oil field block of crude oil in a medium-high permeability reservoir type, and oil can be extracted by means of a production oil well in the oil field block. The production capacity type can represent the production capacity development degree of the oil area.

[0034] ​Specifically, the type of the oilfield to be exploited can be evaluated by combining the development time of the oil region to be exploited. For example, if the development time of the oil region to be exploited reaches a preset time limit, it is considered that the development time of the oil region is long, and the type of the oilfield can be marked as an old region type. If the development time of the oil region to be exploited does not reach the preset time limit, it is considered that the development time of the oil region is short or the oil region has not been developed, and the type of the oilfield can be marked as a new region type.

[0035] For example, the A oil region has been developed for many years, and it is an old region. The B oil region has been developed for a short time, and it is a new region.

[0036] In S120, a reference oil region is determined based on the type of the production capacity, and historical oil production data corresponding to the reference oil region is obtained.

[0037] The reference oil region includes the oil region to be exploited or a similar oil region associated with the oil region to be exploited. The historical oil production data includes the average daily oil production of a single well in a plurality of months in at least one production year. It should be noted that for some new region type oil regions to be exploited, the development time is short or the oil region has not been developed. The oil production data of this type of oil region is relatively small. If the oil production data of this type of oil region is collected to calibrate the new production capacity of the middle-high permeability oil reservoir crude oil of the oil region to be exploited, there is a problem of low prediction accuracy.

[0038] In order to improve the accuracy of the new production capacity calibration of the middle-high permeability oil reservoir crude oil, whether the oil region to be exploited itself is used as a reference oil region or some other oil region similar to the oil region to be exploited in each dimension is selected as a reference oil region can be determined based on the type of the production capacity. Specifically, the reference oil region is determined based on the type of the production capacity, including: if the type of the production capacity is a new region type, a similar oil region associated with the oil region to be exploited is determined from the produced oil region based on the first association information of the oil region to be exploited and the second association information of at least one produced oil region, and the similar oil region is used as the reference oil region; if the type of the production capacity is an old region type, the oil region to be exploited is determined as the reference oil region.

[0039] The produced oil region can be an oil region that has been developed and stored in a database. The association information of each oil region can include oil region attribute information corresponding to the oil region itself, such as information in each dimension of the type of the oil reservoir where the oil region is distributed, the distribution of the oil reservoir, the altitude, the geological structure, and the environmental information to which the oil region belongs.

[0040] In the embodiment, if the production capacity type is a new area type, a first association information of the to-be-produced oil area and a second association information of each produced oil area are compared to select a similar oil area from the produced oil areas, and the similar oil area is used as a reference oil area. For example, an oil area similar to the to-be-produced oil area in terms of the same basin, similar reservoir properties, similar surface conditions of the reservoir, similar mining technology, similar development method, similar development process, similar well pattern, similar well spacing, etc. is selected as the reference oil area. If the production capacity type is an old area type, the to-be-produced oil area is directly used as the reference oil area, and historical oil production data of the reference oil area in a historical period is obtained as historical oil production data to estimate the monthly decline rate of the average daily oil production of the to-be-produced oil area.

[0041] In the embodiment, the similar oil area associated with the to-be-produced oil area is determined from the produced oil areas based on the first association information of the to-be-produced oil area and the second association information of the at least one produced oil area, including: determining the similarity between the to-be-produced oil area and each produced oil area based on the first association information of the to-be-produced oil area and the second association information of the at least one produced oil area; and determining the similar oil area associated with the to-be-produced oil area based on the similarities.

[0042] The association information includes reservoir type, geological type, development method, and mining method. The similarity can be used to represent the similarity between two oil areas.

[0043] Specifically, the first association information of the to-be-produced oil area and the second association information of each produced oil area can be respectively extracted to obtain a first feature vector corresponding to the first association information and a second feature vector corresponding to each second association information. Further, a distance between the first feature vector and each second feature vector is calculated using a similarity calculation method (such as the Jaccard similarity coefficient, the cosine similarity, the Pearson correlation coefficient, etc.), and the distance is used to represent the similarity between the to-be-produced oil area and the produced oil area. The smaller the distance, the more similar the two oil areas are, and the larger the distance, the less similar the two oil areas are. The produced oil area corresponding to the minimum similarity can be used as the most similar oil area to the to-be-produced oil area, and the similar oil area is used as the reference oil area.

[0044] In order to improve the accuracy of the production capacity prediction, the historical oil production data of the reference oil area can be obtained based on the to-be-predicted year of the to-be-produced oil area. For example, the historical oil production data of multiple months in a historical year close to the to-be-predicted year is obtained. For example, the to-be-predicted year is the oil production capacity of the second year 12 of the current year 11, and the historical oil production data can include the average daily oil production of each month from January to December of the year 11. Alternatively, the historical oil production data of the reference oil area in a production stage of the to-be-produced oil area can also be obtained, for example, the to-be-produced oil area is in the production stage of the peak production after the new well is put into production, and the historical oil production data of the reference oil area in the peak production stage is obtained.

[0045] S130, processing the historical oil production data to obtain a monthly decline rate of the average daily oil production per well.

[0046] In this embodiment, the monthly decline degree of oil production can be analyzed by the average daily oil production per well of each month in the historical oil production data, and the monthly decline rate of the average daily oil production per well of the reference oil region is calculated. Specifically, the historical oil production data is processed to obtain the monthly decline rate of the average daily oil production per well, including: performing oil production regularity analysis according to the average daily oil production per well of multiple months to generate a decline curve of the average daily oil production per well; determining the monthly decline rate of the average daily oil production per well based on the decline curve of the average daily oil production per well.

[0047] In this embodiment, the monthly decline curve of the average daily oil production per well can be fitted by analyzing the oil production regularity of the average daily oil production per well of multiple months, and the monthly decline rate of the average daily oil production per well is calculated by the average daily oil production per well of each node on the decline curve of the average daily oil production per well. For example, see Figure 2 The X block (i.e. the oil region to be tested) is a new well put into production in the old block, so the decline of the new well in previous years can be referred to when selecting the monthly decline rate of the second year. The decline curve of the average daily oil production per well is fitted by performing monthly decline regularity analysis on the average daily oil production per well of the oil well put into production in the X block, and the monthly decline rate is obtained.

[0048] It should be noted that, in order to ensure the accuracy of the determined new production capacity, a decline rate detection condition can also be pre-configured. The decline rate detection condition can be a condition for detecting whether there is an average single-well daily oil production decline rule. For example, it can be a decline rate range. If the average single-well daily oil production decline rate is within the decline rate range, it is considered that there is an average single-well daily oil production decline rule, and the average single-well daily oil production decline rate reaches the preset decline condition. If the average single-well daily oil production monthly decline rate is not within the decline rate range, it is considered that there is no average single-well daily oil production decline rule, that is, the average single-well daily oil production monthly decline rate does not reach the preset decline condition. It should be noted that, in the case that the average single-well daily oil production monthly decline rate does not reach the preset decline condition, it can be because the historical oil production data of the old type of to-be-produced oil area does not have an average single-well daily oil production decline rule. If the average single-well daily oil production monthly decline rate does not reach the preset decline condition, the similar oil area corresponding to the to-be-produced oil area is determined from the produced oil area, and the historical oil production data is updated based on the historical oil production information of the similar oil area. That is, if the average single-well daily oil production monthly decline rate does not reach the preset decline condition, the similar oil area corresponding to the to-be-produced oil area can be reselected as the reference oil area, the historical oil production data is updated based on the historical oil production information of the similar oil area, the average single-well daily oil production monthly decline rate is re-determined based on the updated historical oil production data, and the production capacity is predicted. In the case that the average single-well daily oil production monthly decline rate reaches the preset decline condition, the new production capacity of the to-be-produced oil area is determined,

[0049] S140, determining the average single-well daily oil production of the to-be-produced oil area in the target month of the production year.

[0050] The target month can be the nearest month of the current next year in the production year, such as December.

[0051] In this embodiment, the average single-well daily oil production of the to-be-produced oil area in the target month of the production year is determined, including: determining the monthly oil production of the to-be-produced oil area in the target month of the production year; based on the monthly oil production, the actual production well number and the actual production days in the target month, determining the average single-well daily oil production in the target month.

[0052] Specifically, the month closest to the to-be-predicted year can be selected from a plurality of months as the target month, for example, December. Further, the monthly oil production of the target month December of the production year can be calculated, and the result is divided by the actual production days in December, and the result is divided by the actual production well number in December. The obtained ratio is taken as the average single-well daily oil production of the target month, which can represent the average single-well daily production capacity of the oil well in December.

[0053] S150, based on the average single well daily oil production, the monthly decline rate, the plurality of months, the average single well daily oil production of the target month, and the pre-set production parameter, determine the new production capacity of the to-be-oil-producing area.

[0054] Among them, the pre-set production parameter includes but is not limited to the production days and the number of oil wells, for example, the production days are 300 days, and the number of oil wells is 13 wells. The new production capacity can be understood as the new crude oil production capacity, which can represent the cumulative oil production of the to-be-oil-producing area in the second year after full production.

[0055] In this embodiment, based on the average single well daily oil production, the monthly decline rate, the plurality of months, the average single well daily oil production of the target month, and the pre-set production parameter, the new production capacity of the to-be-oil-producing area is determined, including: based on the average single well daily oil production, the monthly decline rate, the plurality of months, and the average single well daily oil production of the target month, determining the average single well daily production capacity of the to-be-oil-producing area in the next year of the production year; based on the average single well daily production capacity and the production parameter, determining the new production capacity of the to-be-oil-producing area; wherein the production parameter includes the production days and the number of oil wells.

[0056] In this embodiment, the average single well daily production capacity of the to-be-oil-producing area can be calculated by the monthly decline rate of the average single well daily oil production, the month, and the average single well daily oil production of the target month. The average single well daily production capacity can represent the average single well daily production capacity in the predicted time (such as the second year). The product value is obtained by multiplying the average single well daily production capacity, the production days, and the number of oil wells. Then, the quotient value is obtained by dividing the product value by the preset parameter. The quotient value can be used as the new production capacity of the to-be-oil-producing area. The new production capacity can represent the production capacity of the to-be-oil-producing area in the predicted time, so as to reflect the oil production capacity of the to-be-oil-producing area in the second year of production through the new production capacity.

[0057] For example, the average single well daily production capacity is q 平 , the production days are T, the number of oil wells is W, and the preset parameter is 10000. The new production capacity Q 区x = q 平 *W*T / 10000.

[0058] In this embodiment, based on the average single well daily oil production, the monthly decline rate, the plurality of months, the average single well daily oil production of the target month, and the pre-set production parameter, determine the new production capacity of the to-be-oil-producing area, including: based on the average single well daily oil production, the monthly decline rate, the plurality of months, and the average single well daily oil production of the target month, determining the average single well daily production capacity of the to-be-oil-producing area in the next year of the production year; based on the average single well daily production capacity and the production parameter, determining the new production capacity of the to-be-oil-producing area; wherein the production parameter includes the production days and the number of oil wells.

[0059] Specifically, for a certain month, a preset threshold (e.g., 1) can be subtracted from the monthly decline rate of the average daily oil production per well to obtain a difference value, the difference value is subjected to exponential processing based on the numerical value of the month, and the numerical value obtained by the exponential processing is multiplied by the daily production capacity of the target month, and the product value can be used as the intermediate value corresponding to the month. Correspondingly, the intermediate value corresponding to each month can be obtained, the sum of all intermediate values is obtained, and the quotient of the sum value and the total number of months is obtained, which can be used as the average daily production capacity of the next year of the production year.

[0060] For example, the productivity calculation function can be: The average daily production capacity q is calculated 平 , wherein D m is the monthly decline rate, t is the numerical value of the month, and q 末 is the average daily oil production per well in 12 months.

[0061] The technical scheme of the embodiment determines the productivity type of the to-be-produced oil region, determines a reference oil region based on the productivity type, and obtains historical oil production data corresponding to the reference oil region; the historical oil production data is processed to obtain the monthly decline rate of the average daily oil production per well, and the average daily oil production per well of the to-be-produced oil region in the target month of the production year is determined; based on the monthly decline rate of the average daily oil production per well, a plurality of months, the average daily oil production per well of the target month, and a pre-set production parameter, the new productivity of the to-be-produced oil region is determined, which solves the problem that the coincidence rate of the oil production capacity of the oil region predicted by the liquid production intensity method in the prior art and the actual annual yield in the second year of production is low, realizes the analysis of the productivity type of the to-be-produced oil region, the acquisition of historical oil production data reflecting the oil region of the to-be-produced oil region, the determination of the monthly decline rate of the average daily oil production per well based on the historical oil production data, and the determination of the new productivity of the to-be-produced oil region based on the average daily oil production per well of the to-be-produced oil region in the target month of the production year, thereby realizing the linkage of productivity and yield, making the new productivity truly reflect the actual production capacity of the to-be-produced oil region in the second year of production, improving the accuracy of the prediction of the oil production capacity of the oil region, and achieving the technical effect of ensuring the stability of the oil region production.

[0062] Embodiment Two

[0063] As an optional embodiment of the above embodiment, in order for those skilled in the art to further clearly understand the technical scheme of the embodiment of the present application, a specific application scenario example is given. Specifically, reference can be made to the following specific content.

[0064] In the embodiment, the to-be-produced oil region can be determined in units of projects or blocks, and the productivity of the to-be-produced oil region is calibrated in the process of calibrating the productivity of the to-be-produced oil region. The average single-well daily production capacity of the to-be-produced oil area in the second year (i.e., the average single-well daily production capacity) is calculated, wherein q 末 The average single-well daily oil production of the oil well put into production in the current year in December (i.e., the single-well daily production capacity in the target month) is taken, and the monthly decline rate Dm in the second year is predicted according to the decline law of the to-be-produced oil area by selecting a yield decline method, an analogy method, etc. For example, for a to-be-produced oil area with a clear yield decline law, the yield decline method is selected to predict Dm, and for a to-be-produced oil area with a short production time or no decline law, the decline law of a similar adjacent area in the same basin can be used to value Dm. After determining the average single-well daily production capacity in the second year, the production capacity of the to-be-produced oil area in the second year is calculated using Q 区x = q 平 * W * T / 10000, wherein W is the total number of oil wells put into production in the to-be-produced oil area, and T is the average number of days of opening wells in the to-be-produced oil area in the second year. For a well produced by natural flow, the production days can be taken as 330 days, and for a production well developed by natural energy, water drive, or chemical flooding, the production days can be taken as 300 days.

[0065] For example, the actual monthly oil production of 13 new wells put into production in X block of oilfield in 2021 in December of the year is 260 tons, and the actual production days are 25 days, so the average single-well daily oil production q 末 in December is 260 / 25 / 13 = 0.8 d / t. In recent years, X block is developed by water drive, and the decline of new wells in the first three years before production is shown in Figure 2 , the annual decline rate of new wells in the second year is 9.52%, and the monthly decline rate Dm of new wells in the second year is 0.9%. The average single-well daily oil production in December 2021 is 0.8 d / t, and the monthly decline rate is 0.9%. The average single-well daily production capacity in the second year is calculated as: i.e. q 平 = 0.75 t / d. The new crude oil production capacity Q 区x of the block in 2021 is calculated as: 平 = q 区x * W * T / 10000, i.e., Q 区x = 0.75 * 13 * 300 / 10000 = 0.29 million tons.

[0066] It should be noted that for a to-be-produced oil area of a chemical flooding development of a medium-high permeability reservoir, the production capacity can be calibrated using Q 平 = q 平The decline method and analogy method can be used for prediction according to the production stage of the new well after chemical flooding. For example, the water drive decline law is used to predict the average daily production capacity of single well in the second year according to the injection-production condition of the block in the blank water drive stage; the analogy method is used to predict the average daily production capacity of single well in the second year in the injection agent stage.

[0067] For example, the Y area (similar oil area) and the M area (to be measured oil area) belong to the same reservoir, and the development plan, development method and development process of the two blocks are similar. The production time of the Y block is longer than that of the M block, and the chemical flooding development law is more obvious in the injection agent stage. The monthly decline rate of the M block in the second year can be determined by analogy with the monthly decline rate of the new well in the second year of the chemical flooding in the Y block. Through statistics of the actual monthly oil production of 125 wells in the M reservoir in December 2021, which is 99,000 tons, and the actual production days, which is 28 days, the average daily oil production of single well in December 2021 is calculated as follows: 末 = 0.99 * 10000 / 125 / 28 = 2.82 t / d.

[0068] Considering the index change law of the whole chemical flooding cycle, the wells put into production in the Y block from 2013 to 2020 are statistically analyzed according to the production time (the decline law analysis can be referred to Figure 3 ), and the monthly decline rate of the average daily oil production of single well in the second year of the new well is determined as -3.84%. Through analogy of the decline of the Y reservoir, the average daily production capacity of single well in the first month of 2022 is determined as 2.82 * (1-(-3.84%)) = 2.93, and the average daily production capacity of single well in the second month is determined as 2.82 * (1-(-3.84%)) 2 = 3.04, and so on, the third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh and twelfth are 3.16, 3.28, 3.4, 3.54, 3.67, 3.81, 3.96, 4.11, 4.16, 4.43 respectively (see Figure 3 the curve decline law in the dashed box in the figure), and the average daily production capacity of single well in January-December 2022 is the average of the sum of the average daily production capacity of single well in the 12 months, that is, 3.62 t / d. The new crude oil production capacity Q 区x of the M block is 13.57 million tons.

[0069] The technical scheme of the embodiment determines the production capacity type of the to-be-oil-producing area, determines a reference oil area based on the production capacity type, and obtains historical oil production data corresponding to the reference oil area; the historical oil production data is processed to obtain a monthly decline rate of average daily oil production of a single well, and the average daily oil production of a single well of the to-be-oil-producing area in a target month of the year of production is determined; based on the monthly decline rate of the average daily oil production of a single well, the average daily oil production of a single well of multiple months, the average daily oil production of a single well of the target month, and a pre-set production parameter, the new production capacity of the to-be-oil-producing area is determined, thereby solving the problem that the coincidence rate of the oil production capacity of the oil area predicted by the liquid production intensity method in the prior art with the actual annual yield in the second year of production is low, and realizing that the new production capacity of the to-be-oil-producing area is determined by analyzing the production capacity type of the to-be-oil-producing area, obtaining historical oil production data that can reflect the oil area situation of the to-be-oil-producing area, determining the monthly decline rate of the average daily oil production of a single well based on the historical oil production data, and combining the average daily oil production of a single well of the to-be-oil-producing area in the target month of the year of production, so as to realize the linkage of production capacity and yield, make the new production capacity truly reflect the actual production capacity of the to-be-oil-producing area in the second year of production, improve the accuracy of the prediction of the oil production capacity of the oil area, and further achieve the technical effect of ensuring the stability of the production of the oil area.

[0070] Embodiment three

[0071] Figure 4 It is a structural schematic diagram of a device for calibrating new production capacity of crude oil in a medium-high permeability oil reservoir according to the embodiment three of the present application. As shown in the figure, Figure 4 The device comprises a production capacity type determination module 210, a reference oil area determination module 220, a parameter determination module 230, and a new production capacity determination module 240.

[0072] The production capacity type determination module 210 is configured to determine the production capacity type of the to-be-oil-producing area; the reference oil area determination module 220 is configured to determine a reference oil area based on the production capacity type, and obtain historical oil production data corresponding to the reference oil area; the reference oil area comprises the to-be-oil-producing area or a similar oil area associated with the to-be-oil-producing area; the historical oil production data comprises average daily oil production of a single well of multiple months in at least one year of production; the parameter determination module 230 is configured to process the historical oil production data to obtain a monthly decline rate of the average daily oil production of a single well, and determine the average daily oil production of a single well of the to-be-oil-producing area in a target month of the year of production; and the new production capacity determination module 240 is configured to determine the new production capacity of the to-be-oil-producing area based on the monthly decline rate of the average daily oil production of a single well, the average daily oil production of a single well of the multiple months, the average daily oil production of a single well of the target month, and a pre-set production parameter.

[0073] The technical scheme of the embodiment determines the production capacity type of the to-be-oil-producing area; determines a reference oil area based on the production capacity type, and obtains historical oil production data corresponding to the reference oil area; processes the historical oil production data to obtain a monthly decline rate of average daily oil production of a single well, and determines the average daily oil production of a single well of the to-be-oil-producing area in a target month of the year of production; and determines the new production capacity of the to-be-oil-producing area based on the monthly decline rate of average daily oil production of a single well, a plurality of months, the average daily oil production of a single well of the target month, and a pre-set production parameter, thereby solving the problem that the coincidence rate of the predicted oil production capacity of the oil area with the actual annual oil production in the second year is low in the prior art, and realizing the technical effects that the historical oil production data reflecting the oil area situation of the to-be-oil-producing area is obtained by analyzing the production capacity type of the to-be-oil-producing area, the monthly decline rate of average daily oil production of a single well is determined based on the historical oil production data, the new production capacity of the to-be-oil-producing area is determined in combination with the average daily oil production of a single well of the to-be-oil-producing area in the target month of the year of production, the linkage of the production capacity and the production is realized, the new production capacity can truly reflect the actual production capacity of the to-be-oil-producing area in the second year of production, the accuracy of the prediction of the oil production capacity of the oil area is improved, and the stability of the production of the oil area is ensured.

[0074] Based on the above device, optionally, the reference oil area determination module 220 is configured to, if the production capacity type is a new area type, determine a similar oil area associated with the to-be-oil-producing area from the produced oil areas based on the first association information of the to-be-oil-producing area and the second association information of at least one produced oil area, and take the similar oil area as the reference oil area; and if the production capacity type is an old area type, determine the to-be-oil-producing area as the reference oil area.

[0075] Based on the above device, optionally, the reference oil area determination module 220 includes a similar oil area determination unit.

[0076] The similar oil area determination unit is configured to determine the similarity of the to-be-oil-producing area and each of the produced oil areas based on the first association information of the to-be-oil-producing area and the second association information of at least one produced oil area, wherein the association information includes reservoir type, geological type, development method, and mining method; and determine the similar oil area associated with the to-be-oil-producing area based on the similarities.

[0077] Based on the above device, optionally, the parameter determination module 230 includes a decline curve determination unit and a monthly decline rate determination unit of average daily oil production of a single well.

[0078] The decline curve determination unit is configured to perform oil production regularity analysis according to the average daily oil production of a single well of the plurality of months, and generate a decline curve of the average daily oil production of a single well.

[0079] A monthly decline rate of average single-well daily oil production is determined based on the decline curve.

[0080] On the basis of the above device, the parameter determination module 230 further includes a monthly oil production determination unit and a target monthly average single-well daily oil production determination unit.

[0081] The monthly oil production determination unit is configured to determine monthly oil production of the to-be-produced oil area in a target month of the production year.

[0082] The target monthly average single-well daily oil production determination unit is configured to determine average single-well daily oil production in the target month based on the monthly oil production, actual production well number and actual production days in the target month.

[0083] On the basis of the above device, the new production capacity determination module 240 includes an average single-well daily production capacity determination unit and a new production capacity determination unit.

[0084] The average single-well daily production capacity determination unit is configured to determine average single-well daily production capacity of the to-be-produced oil area in the next year of the production year based on the monthly decline rate of average single-well daily oil production, the plurality of months and average single-well daily oil production in the target month.

[0085] The new production capacity determination unit is configured to determine the new production capacity of the to-be-produced oil area based on the average single-well daily production capacity and the production parameters, wherein the production parameters include production days and oil well number.

[0086] On the basis of the above device, the average single-well daily production capacity determination unit includes an intermediate value determination unit and a predicted daily production capacity determination unit.

[0087] The intermediate value determination unit is configured to determine, for each of the months, an intermediate value corresponding to the month based on the monthly decline rate of average single-well daily oil production, the month and average single-well daily oil production in the target month.

[0088] The predicted daily production capacity determination unit is configured to determine the average single-well daily production capacity based on the intermediate values and the total number of the months.

[0089] The device for calibrating new production capacity of crude oil in a middle-high permeability oil reservoir provided by the embodiments of the present application can execute the method for calibrating new production capacity of crude oil in a middle-high permeability oil reservoir provided by any of the embodiments of the present application, and has the corresponding function modules and beneficial effects of the execution method.

[0090] Embodiment Four

[0091] Figure 5This is a schematic diagram of the structure of an electronic device for implementing the method for calibrating new crude oil production capacity in medium-to-high permeability reservoirs according to embodiments 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.

[0092] like Figure 5 As 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.

[0093] 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.

[0094] 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 method for calibrating new crude oil production capacity in medium-to-high permeability reservoirs.

[0095] In some embodiments, the method for calibrating new production capacity of crude oil in a medium-high permeability reservoir can be implemented as a computer program tangibly embodied in a computer readable storage medium, e.g., storage unit 18. In some embodiments, parts or all of the computer program can be loaded and / or installed onto electronic device 10 via, e.g., ROM 12 and / or communication unit 19. When the computer program is loaded onto RAM 13 and executed by processor 11, one or more steps of the method for calibrating new production capacity of crude oil in a medium-high permeability reservoir described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the method for calibrating new production capacity of crude oil in a medium-high permeability reservoir by way of other means, e.g., with the aid of firmware.

[0096] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, specially designed application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0097] Computer programs implementing methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program running on the processor implements the functions / operations specified in the flowcharts and / or the block diagrams. The computer program can be executed entirely on a machine, partially on a machine and partially on a remote machine or server, or entirely on a remote machine or server.

[0098] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0099] To provide for interaction with a user, the systems and techniques described here 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 a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; 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 acoustic, speech, or tactile input.

[0100] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0101] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0102] It should be understood that the various forms of flow shown above can be reordered, added to, or have steps deleted. For example, the steps described in the present application can be performed in parallel, in series, or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, and this is not limited herein.

[0103] The above detailed description does not constitute a limitation on the protection scope of the present application. 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 replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for calibrating new production capacity of crude oil in a medium-high permeability oil reservoir, characterized in that, The method comprises the following steps: determining the production type of the to-be-oil-producing area; wherein the production type is determined according to the developed time of the to-be-oil-producing area; determining a reference oil area based on the production type and obtaining historical oil production data corresponding to the reference oil area, including: if the production type is a new area type, determining a similar oil area associated with the to-be-oil-producing area as the reference oil area; if the production type is an old area type, determining the to-be-oil-producing area as the reference oil area; wherein the reference oil area includes the to-be-oil-producing area or a similar oil area associated with the to-be-oil-producing area; the historical oil production data includes the average daily oil production of each month in at least one production year; processing the historical oil production data to obtain the monthly decline rate of the average daily oil production, and determining the average daily oil production of the to-be-oil-producing area in the target month of the production year; the target month is the month closest to the to-be-predicted year selected from the plurality of months; determining the new production capacity of the to-be-oil-producing area based on the monthly decline rate of the average daily oil production, the plurality of months, the average daily oil production of the target month, and the pre-set production parameters, including: for each month, determining an intermediate value corresponding to the month based on the monthly decline rate of the average daily oil production, the month, and the average daily oil production of the target month; determining the average daily oil production capacity based on each intermediate value and the total number of months; determining the new production capacity of the to-be-oil-producing area based on the average daily oil production capacity and the production parameters.

2. The method of claim 1, wherein, The method comprises the following steps: if the production type is a new area type, determining a similar oil area associated with the to-be-oil-producing area from the produced oil areas based on the first association information of the to-be-oil-producing area and the second association information of at least one produced oil area, and taking the similar oil area as the reference oil area; if the production type is an old area type, determining the to-be-oil-producing area as the reference oil area.

3. The method of claim 2, wherein, The method comprises the following steps: determining the similarity between the to-be-oil-producing area and each produced oil area based on the first association information of the to-be-oil-producing area and the second association information of at least one produced oil area; wherein the association information includes reservoir type, geological type, development method, and exploitation method; determining the similar oil area associated with the to-be-oil-producing area based on each similarity.

4. The method of claim 1, wherein, The method comprises the following steps: performing oil production regularity analysis according to the average daily oil production of the plurality of months to generate a decline curve of the average daily oil production; determining the monthly decline rate of the average daily oil production based on the decline curve.

5. The method of claim 1, wherein, The method comprises the following steps: determining the monthly oil production of the to-be-oil-producing area in the target month of the production year; determine the average daily oil production per well of the target month based on the monthly oil production, the actual number of production wells and the actual production days in the target month.

6. The method of claim 1, wherein, The new production capacity of the oil production area to be developed is determined based on the monthly decline rate of the average daily oil production per well, the multiple months, the average daily oil production per well of the target month, and a preset production parameter. The average daily oil production capacity of the oil production area to be developed in the next year is determined based on the monthly decline rate of the average daily oil production per well, the multiple months, and the average daily oil production per well of the target month. The new production capacity of the oil production area to be developed is determined based on the average daily oil production capacity and the production parameter; wherein the production parameter includes the number of production days and the number of oil wells.

7. The method of claim 6, wherein, The average daily oil production capacity of the oil production area to be developed in the next year is determined based on the monthly decline rate of the average daily oil production per well, the multiple months, and the average daily oil production per well of the target month. For each of the months, an intermediate value corresponding to the month is determined based on the monthly decline rate of the average daily oil production per well, the month, and the average daily oil production per well of the target month. The average daily oil production capacity is determined based on the intermediate values and the total number of months.

8. A device for calibrating new production capacity of crude oil in a medium-high permeability oil reservoir, characterized in that, The method comprises: A production capacity type determination module is configured to determine the production capacity type of the oil production area to be developed; wherein the production capacity type is determined according to the developed time of the oil production area to be developed; A reference oil area determination module is configured to determine a reference oil area based on the production capacity type, and obtain historical oil production data corresponding to the reference oil area; wherein the reference oil area includes the oil production area to be developed or a similar oil area associated with the oil production area to be developed; the historical oil production data includes the average daily oil production per well of multiple months in at least one production year; The reference oil area determination module is configured to determine a similar oil area associated with the oil production area to be developed as the reference oil area if the production capacity type is a new area type; and determine the oil production area to be developed as the reference oil area if the production capacity type is an old area type. A parameter determination module is configured to process the historical oil production data to obtain the monthly decline rate of the average daily oil production per well, and determine the average daily oil production per well of the target month of the production year of the oil production area to be developed; the target month is a month closest to the year to be predicted from multiple months; A new production capacity determination module is configured to determine the new production capacity of the oil production area to be developed based on the monthly decline rate of the average daily oil production per well, the multiple months, the average daily oil production per well of the target month, and a preset production parameter. The new production capacity determination module is specifically configured to determine an intermediate value corresponding to the month based on the monthly decline rate of the average daily oil production per well, the month, and the average daily oil production per well of the target month for each of the months; determine the average daily oil production capacity based on the intermediate values and the total number of months; and determine the new production capacity of the oil production area to be developed based on the average daily oil production capacity and the production parameter.

9. An electronic device, comprising: The electronic device comprises: at least one processor; and A memory connected in communication with the at least one processor; wherein The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the method for calibrating new production capacity of crude oil in a medium-high permeability oil reservoir according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions for enabling the processor to perform the method for calibrating new production capacity of crude oil in a medium-high permeability oil reservoir according to any one of claims 1-7 when executed.

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