Exploration area determination method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses an exploration area determination method and device, electronic equipment and a storage medium. The method comprises the following steps: for a petroliferous basin of a to-be-determined exploration area, carrying out reservoir forming combination division on the petroliferous basin to obtain at least one reservoir forming combination; for each reservoir-forming combination in the at least one reservoir-forming combination, determining an oil and gas resource weight and a plane distribution range of the reservoir-forming combination, and assigning the oil and gas resource weight to the plane distribution range; superposing the plane distribution range corresponding to the at least one reservoir forming combination, and obtaining the total oil and gas resource weight of each position in the petroliferous basin according to the obtained superposing result and the oil and gas resource weight of the plane distribution range corresponding to the at least one reservoir forming combination; and determining an exploration area in the petroliferous basin according to the total oil and gas resource weight at each position. According to the technical scheme provided by the embodiment of the invention, the objective and quantitative determination process of the exploration area can be realized.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of oil and gas exploration, and in particular to a method, device, electronic equipment and storage medium for determining an exploration area. Background Art

[0002] Optimization of exploration areas in oil and gas basins is an important part of oil and gas exploration in the basin. It is also the basis for formulating basin exploration strategies and deciding whether to bid for blocks. The quality of optimization of exploration areas directly determines the success or failure of bidding for oil and gas blocks. Therefore, optimization of exploration areas has always been the focus of petroleum geologists.

[0003] However, the currently adopted exploration area optimization plan, that is, the exploration area determination plan, has problems such as insufficient quantification, great difficulty in determination, and the determination results being greatly affected by the experience level of relevant personnel, which need to be improved. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, electronic device and storage medium for determining an exploration area, which solve the problems of insufficient quantification, great difficulty in determination and determination results being greatly affected by the experience level of relevant personnel.

[0005] According to one aspect of the present invention, a method for determining an exploration area is provided, which may include:

[0006] For the oil and gas bearing basins in the exploration area to be determined, the oil and gas bearing basins are divided into reservoir combinations to obtain at least one reservoir combination;

[0007] For each reservoir combination in at least one reservoir combination, determine the oil and gas resource weight and plane distribution range of the reservoir combination, and assign the oil and gas resource weight to the plane distribution range;

[0008] Superimposing the plane distribution ranges corresponding to at least one reservoir combination, and obtaining the total oil and gas resource weight at each location in the oil and gas basin according to the obtained superimposition result and the oil and gas resource weight of the plane distribution range corresponding to at least one reservoir combination;

[0009] Exploration areas within petroliferous basins are identified based on the total oil and gas resource weight at each location.

[0010] According to another aspect of the present invention, a device for determining an exploration area is provided, which may include:

[0011] A reservoir combination obtaining module is used to divide the reservoir combinations of the oil and gas basins in the exploration area to be determined, and obtain at least one reservoir combination;

[0012] An oil and gas resource weight assignment module is used to determine the oil and gas resource weight and plane distribution range of each reservoir combination in at least one reservoir combination, and assign the oil and gas resource weight to the plane distribution range;

[0013] A total oil and gas resource weight obtaining module is used to superimpose the plane distribution ranges corresponding to at least one reservoir combination, and obtain the total oil and gas resource weight at each location in the oil and gas basin according to the obtained superposition result and the oil and gas resource weights of the plane distribution ranges corresponding to at least one reservoir combination;

[0014] The exploration area determination module is used to determine the exploration area within the oil and gas basin based on the total oil and gas resource weight at each location.

[0015] According to another aspect of the present invention, there is provided an electronic device, which may include:

[0016] at least one processor; and

[0017] a memory communicatively connected to at least one processor; wherein,

[0018] The memory stores a computer program that can be executed by at least one processor. The computer program is executed by at least one processor so that the method for determining an exploration area provided by any embodiment of the present invention is implemented when the at least one processor executes the computer program.

[0019] According to another aspect of the present invention, a computer-readable storage medium is provided, on which computer instructions are stored. The computer instructions are used to enable a processor to implement the method for determining an exploration area provided by any embodiment of the present invention when executed.

[0020] The technical solution of the embodiment of the present invention is to obtain at least one reservoir combination by dividing the reservoir combination for the oil and gas basin; determine the oil and gas resource weight and plane distribution range of the reservoir combination for each reservoir combination in the at least one reservoir combination, and assign the oil and gas resource weight to the plane distribution range; overlap the plane distribution ranges corresponding to the at least one reservoir combination, and obtain the total oil and gas resource weight at each position in the oil and gas basin according to the overlap result and the oil and gas resource weight of the plane distribution range corresponding to the at least one reservoir combination; determine the exploration area in the oil and gas basin according to the total oil and gas resource weight at each position. The above technical solution realizes the objective and quantitative determination process of the exploration area by utilizing the advantages of the reservoir combination in the evaluation of oil and gas resources and the oil and gas resource weight that can reflect the differences in the oil and gas enrichment degree between different reservoir combinations, thereby reducing the difficulty of determination and the degree to which the determination result is affected by the experience level of relevant personnel.

[0021] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a flow chart of a method for determining an exploration area provided in an embodiment of the present invention;

[0024] Figure 2 is a flow chart of another method for determining an exploration area provided in an embodiment of the present invention;

[0025] Figure 3 is a flow chart of another method for determining an exploration area provided in an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of an example of reservoir combination division in another method for determining an exploration area provided in an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of an example of a plane distribution range in another method for determining an exploration area provided according to an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of a preferred example of an exploration area in another method for determining an exploration area provided according to an embodiment of the present invention;

[0029] Figure 7 is a structural block diagram of a device for determining an exploration area according to an embodiment of the present invention;

[0030] Figure 8 It is a structural schematic diagram of an electronic device for implementing the method for determining an exploration area according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. The situations of "target", "original", etc. are similar and will not be repeated here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] Figure 1 1 is a flow chart of a method for determining an exploration area provided in an embodiment of the present invention. This embodiment is applicable to the case of determining an exploration area of ​​an oil and gas basin. The method can be executed by an exploration area determination device provided in an embodiment of the present invention, which can be implemented in software and / or hardware, and can be integrated in an electronic device, which can be various user terminals or servers.

[0034] See also Figure 1 The method of the embodiment of the present invention specifically includes the following steps:

[0035] S110. For the oil and gas-bearing basins in the exploration area to be determined, divide the oil and gas-bearing basins into reservoir combinations to obtain at least one reservoir combination.

[0036] Among them, the oil and gas basin can be understood as the basin of the oil and gas exploration area to be determined (i.e., the area used for oil and gas exploration). The reservoir combination can be understood as a group of prospective traps or oil and gas reservoirs in the same reservoir with similar facies under similar geological background, which are consistent in terms of reservoir layer position and lithofacies reservoir-cap combination. In other words, the reservoir combination directly focuses on the final target trap of exploration and is linked to the exploration target. Moreover, the resource evaluation based on the reservoir combination as a unit has achieved good application results in basin resource evaluation.

[0037] The oil and gas basins are divided into reservoir combinations to obtain one or more reservoir combinations.

[0038] S120. For each reservoir combination in at least one reservoir combination, determine the oil and gas resource weight and plane distribution range of the reservoir combination, and assign the oil and gas resource weight to the plane distribution range.

[0039] Among them, the weight of oil and gas resources can reflect the degree of oil and gas enrichment of the reservoir combination. In practical applications, optionally, the larger the weight of oil and gas resources, the higher the degree of oil and gas enrichment. In other words, in the embodiment of the present invention, the weight of oil and gas resources is directly linked to the amount of oil and gas resources in the oil and gas basin. This, combined with the subsequent steps, makes the optimization result of the favorable area (i.e., the area that is favorable for exploration) no longer just the result of queuing the favorable areas in an oil and gas basin. It has a numerical value with the meaning of oil and gas resources, which can realize the horizontal comparison of favorable areas between different oil and gas basins. The plane distribution range can characterize the distribution range of the reservoir combination in the oil and gas basin.

[0040] Each reservoir combination in at least one reservoir combination is processed separately. Specifically, the oil and gas resource weight and plane distribution range of each reservoir combination are determined separately, and each obtained oil and gas resource weight is assigned to the plane distribution range corresponding to the same reservoir combination.

[0041] S130. Superimpose the planar distribution ranges corresponding to at least one reservoir combination, and obtain the total oil and gas resource weight at each location in the oil and gas basin based on the superposition result and the oil and gas resource weight of the planar distribution ranges corresponding to at least one reservoir combination.

[0042] There are multiple locations on the oil and gas basin, and each of the multiple locations may be covered by one, two or more plane distribution ranges. On this basis, further, for the locations covered by two or more plane distribution ranges, the oil and gas resource weights corresponding to the two or more plane distribution ranges may be completely the same, partially the same or completely different.

[0043] Therefore, in order to obtain the accurate oil and gas enrichment degree of each location, the planar distribution ranges corresponding to at least one reservoir combination can be superimposed, and the total oil and gas resource weight at each location can be obtained based on the superposition result and the oil and gas resource weight of the planar distribution range corresponding to at least one reservoir combination. For example, for each of the multiple locations, the sum of the oil and gas resource weights corresponding to each planar distribution range covering the location can be used as the total oil and gas resource weight at the location.

[0044] S140. Determine the exploration area within the oil and gas basin based on the total oil and gas resource weight at each location.

[0045] Among them, the total oil and gas resource weight can reflect the degree of oil and gas enrichment at the corresponding location. Therefore, the exploration area in the oil and gas basin can be determined according to the total oil and gas resource weights at different locations.

[0046] The technical solution of the embodiment of the present invention is to obtain at least one reservoir combination by dividing the reservoir combination for the oil and gas basin; determine the oil and gas resource weight and plane distribution range of the reservoir combination for each reservoir combination in the at least one reservoir combination, and assign the oil and gas resource weight to the plane distribution range; overlap the plane distribution ranges corresponding to the at least one reservoir combination, and obtain the total oil and gas resource weight at each position in the oil and gas basin according to the overlap result and the oil and gas resource weight of the plane distribution range corresponding to the at least one reservoir combination; determine the exploration area in the oil and gas basin according to the total oil and gas resource weight at each position. The above technical solution realizes the objective and quantitative determination process of the exploration area by utilizing the advantages of the reservoir combination in the evaluation of oil and gas resources and the oil and gas resource weight that can reflect the differences in the oil and gas enrichment degree between different reservoir combinations, thereby reducing the difficulty of determination and the degree to which the determination result is affected by the experience level of relevant personnel.

[0047] An optional technical solution to determine the oil and gas resource weights of a reservoir combination includes:

[0048] Obtain the total reserves of discovered oil and gas reservoirs in each reservoir combination, and obtain the oil and gas resource weight of the reservoir combination based on the total reserves of discovered oil and gas reservoirs in each reservoir combination and the total reserves of discovered oil and gas reservoirs in the reservoir combination; or,

[0049] At least one artificially assigned weight manually assigned to the reservoir combination is obtained, and the oil and gas resource weight of the reservoir combination is determined according to the at least one artificially assigned weight.

[0050] The above technical solution realizes the accurate determination of oil and gas resource weights in various situations.

[0051] Another optional technical solution to determine the planar distribution range of the reservoir combination includes:

[0052] Determine the overlapping range between the reservoir distribution range and the cap rock distribution range corresponding to the reservoir combination, and use the overlapping range as the plane distribution range of the reservoir combination; or,

[0053] The range of the plane distribution map of oil and gas reservoirs corresponding to at least one discovered oil and gas reservoir in the reservoir combination is taken as the plane distribution range of the reservoir combination.

[0054] The above technical solution realizes the accurate determination of the plane distribution range in various situations.

[0055] Figure 2It is a flow chart of another method for determining an exploration area provided in an embodiment of the present invention. This embodiment is optimized based on the above-mentioned technical solutions. In this embodiment, optionally, the above-mentioned method for determining an exploration area may also include: predicting the amount of oil and gas resources to be discovered in the reservoir combination; obtaining the oil and gas resource potential index of the plane distribution range with assigned oil and gas resource weights according to the amount of oil and gas resources to be discovered and the oil and gas resource weights; obtaining the total oil and gas resource weight at each position in the oil and gas basin according to the obtained superposition results and the oil and gas resource weights of the plane distribution range corresponding to at least one reservoir combination, which may include: obtaining the total oil and gas resource potential index at each position in the oil and gas basin according to the obtained superposition results and the oil and gas resource potential index of the plane distribution range corresponding to at least one reservoir combination, and using the total oil and gas resource potential index as the total oil and gas resource weight. Among them, the explanations of the terms that are the same or corresponding to the above-mentioned embodiments are not repeated here.

[0056] See also Figure 2 The method of this embodiment may specifically include the following steps:

[0057] S210. For the oil and gas-bearing basins in the exploration area to be determined, divide the oil and gas-bearing basins into reservoir combinations to obtain at least one reservoir combination.

[0058] S220. For each reservoir combination in at least one reservoir combination, determine the oil and gas resource weight and plane distribution range of the reservoir combination, and assign the oil and gas resource weight to the plane distribution range.

[0059] S230, predicting the amount of undiscovered oil and gas resources in the reservoir combination, and obtaining an oil and gas resource potential index in a planar distribution range according to the amount of undiscovered oil and gas resources and the weight of the oil and gas resources.

[0060] The amount of undiscovered oil and gas resources can be understood as the amount of oil and gas resources that have yet to be discovered, that is, the amount of oil and gas resources that have not yet been explored. The oil and gas resource potential index can be used to characterize the potential for the exploration of oil and gas resources.

[0061] For each reservoir combination in at least one reservoir combination, the amount of undiscovered oil and gas resources of the reservoir combination is predicted, and then the oil and gas resource potential index of the reservoir combination is obtained according to the amount of undiscovered oil and gas resources and the oil and gas resource weight of the reservoir combination. On this basis, from another perspective, after the above steps, the oil and gas resource weight has been assigned to the plane distribution range, so the oil and gas resource potential index obtained in this step can also be called the oil and gas resource potential index of the plane distribution range.

[0062] S240. Superimpose the planar distribution ranges corresponding to at least one reservoir combination, and obtain the total oil and gas resource potential index at each location in the oil and gas basin based on the superposition result and the oil and gas resource potential index of the planar distribution range corresponding to at least one reservoir combination.

[0063] Among them, according to the above explanation, compared with the oil and gas resource weight, the oil and gas resource potential index can better reflect the exploration value of the corresponding oil reservoir combination. Therefore, after obtaining the superposition result, the total oil and gas resource potential index at each location in the oil and gas basin can be obtained according to the superposition result and the oil and gas resource potential index of the plane distribution range of different reservoir combinations; further, combined with the subsequent steps, the exploration area in the oil and gas basin is determined according to the total oil and gas resource potential index at each location.

[0064] S250. Determine the exploration area within the oil and gas basin based on the total oil and gas resource potential index at each location.

[0065] The technical solution of the embodiment of the present invention predicts the amount of undiscovered oil and gas resources in each reservoir combination and combines the oil and gas resource weights to obtain the oil and gas resource potential index of different reservoir combinations, and determines the exploration area based on this. The proposal of the oil and gas resource potential index improves the accuracy of determining the exploration area.

[0066] An optional technical solution to predict the amount of undiscovered oil and gas resources in a reservoir combination includes:

[0067] Obtain the number of discovered oil and gas reservoirs in the reservoir combination and the reserve size of each discovered oil and gas reservoir among the number of discovered oil and gas reservoirs; and predict the amount of undiscovered oil and gas resources in the reservoir combination based on the number and the reserve size of each discovered oil and gas reservoir.

[0068] The above technical solution realizes the accurate prediction of the amount of undiscovered oil and gas resources.

[0069] Figure 3 It is a flow chart of another method for determining an exploration area provided in an embodiment of the present invention. This embodiment is optimized based on the above-mentioned technical solutions. In this embodiment, optionally, determining the exploration area in the oil and gas basin according to the total oil and gas resource weight at each position may include: dividing the oil and gas basin into regions according to the total oil and gas resource weight at each position; determining the exploration area in the oil and gas basin from at least one basin region according to the total oil and gas resource weight corresponding to at least one divided basin region. Among them, the explanations of the terms that are the same or corresponding to the above-mentioned embodiments are not repeated here.

[0070] See also Figure 3 The method of this embodiment may specifically include the following steps:

[0071] S310. For the oil and gas-bearing basins in the exploration area to be determined, divide the oil and gas-bearing basins into reservoir combinations to obtain at least one reservoir combination.

[0072] S320. For each reservoir combination in at least one reservoir combination, determine the oil and gas resource weight and plane distribution range of the reservoir combination, and assign the oil and gas resource weight to the plane distribution range.

[0073] S330. Superimpose the planar distribution ranges corresponding to at least one reservoir combination, and obtain the total oil and gas resource weight at each location in the oil and gas basin based on the superposition result and the oil and gas resource weight of the planar distribution ranges corresponding to at least one reservoir combination.

[0074] S340. Divide the oil and gas basins into regions based on the total oil and gas resource weight at each location.

[0075] Among them, the oil and gas basins are divided into regions according to the total oil and gas resource weights at different locations. For example, the locations corresponding to the same or similar total oil and gas resource weights can be divided into the same basin area. In this way, the oil and gas enrichment levels at various locations in the same basin area are the same or similar.

[0076] S350: Determine an exploration area within an oil and gas-bearing basin from at least one basin region according to the total oil and gas resource weights corresponding to each of the at least one basin regions obtained by division.

[0077] Among them, according to the total oil and gas resource weights corresponding to each divided basin area, the exploration area can be determined from these basin areas. For example, the basin area corresponding to the largest or larger total oil and gas resource weight can be used as the exploration area.

[0078] The technical solution of the embodiment of the present invention divides the oil and gas basins into regions according to the total oil and gas resource weights at each location, so that the exploration areas can be accurately and quickly determined according to the total oil and gas resource weights corresponding to each divided basin area.

[0079] An optional technical solution is to regionalize the hydrocarbon-bearing basins according to the total hydrocarbon resource weight at each location, including:

[0080] According to the total oil and gas resource weight at each location, a plane distribution map of the total oil and gas resource weight is generated;

[0081] Based on the planar distribution map of total oil and gas resource weights, oil and gas basins are divided into regions.

[0082] The above technical solution uses the plane distribution map of total oil and gas resource weights to achieve rapid division of basin areas.

[0083] In order to better understand the above-mentioned technical solutions as a whole, the following is an exemplary description of them in combination with specific examples. For example, the specific process of determining the exploration area is as follows:

[0084] 1) Divide the hydrocarbon reservoirs into reservoir combinations and obtain at least one reservoir combination:

[0085] ① Method 1: Follow the previous knowledge. Specifically, consult the research literature and use the previous research results to determine the reservoir combination Pi, where i is a natural number.

[0086] ② Method 2: Re-dividing the reservoir combination. Specifically, when there is no reservoir combination division data or the existing reservoir combination division is considered unreasonable, the reservoir combination is re-divided. The division method is as follows: (1) Determine the reservoir Rj developed in the oil and gas basin, where j is a natural number;

[0087] (2) analyzing the characteristics of each reservoir, which may include at least one of the following: reservoir type, vertical development horizon of the reservoir, oil source of the reservoir, main trap types within the reservoir, and oil and gas migration mode within the reservoir;

[0088] (3) Adjacent reservoirs with at least one of similar oil source, reservoir type, migration mode and closure type are divided into the same set of reservoir-forming assemblages, and other reservoirs with different oil source, reservoir type, migration mode and closure type are divided into a separate set of reservoir-forming assemblages, thereby completing the division of reservoir-forming assemblages, and these reservoir-forming assemblages are named Pi in turn.

[0089] 2) Determine the oil and gas resource weight of each reservoir combination:

[0090] ① Method 1: When the exploration degree of oil and gas basins is high, the oil and gas resource weight (W) can be calculated based on the total reserves of discovered oil and gas reservoirs. Pi First, based on the relevant data of discovered oil and gas reservoirs in the oil and gas basins and the relevant data of reservoirs, the total reserves of discovered oil and gas reservoirs in each set of reservoir combinations in the oil and gas basins (REV Pi ) ; Then, according to the REV corresponding to different reservoir combinations Pi , find out the W corresponding to each set of storage combinations Pi , for example, W can be calculated by the following formula Pi :

[0091] W Pi =REV Pi / Max(REV Pi )*100

[0092] In addition, you can also use the REV corresponding to Pi PiREV corresponding to all Pi Pi The ratio between and , find W Pi , etc., are not specifically limited here.

[0093] ② Method 2: When the exploration degree of oil and gas basins is low, that is, when oil and gas reservoirs have not been discovered yet, the expert analysis method can be used to obtain W Pi Specifically, according to the basin type of the oil and gas basin, experts with rich resource evaluation experience in this basin type are invited to assign the oil and gas resource weights of each set of reservoir combinations, that is, to give artificially assigned weights for each set of reservoir combinations; further, the artificially assigned weights given by multiple experts are processed to obtain the W of each set of reservoir combinations. pi Here we take the average processing as an example, W pi The calculation formula is as follows:

[0094] W pi =(W pi-专家1 +W pi-专家2 +……+W pi-专家n ) / n

[0095] Where n is a natural number, indicating the number of experts.

[0096] 3) Determine the plane distribution range of each reservoir combination (A Pi ):

[0097] ① Method 1: When the research level of oil and gas basins is relatively high, the research results on the plane distribution range of reservoir combinations in this field are obtained by consulting the literature, and they are directly borrowed and named A pi , where i is a natural number.

[0098] ② Method 2: The research level in oil and gas basins is relatively low, and there is no research on A pi If the relevant research results of the previous researchers are not recognized by the industry, the following method can be used to determine A pi :

[0099] Method A: For each set of reservoir combinations, find the sedimentary facies diagram of the reservoir and cap rock in the set of reservoir combinations, or the planar distribution diagram of the reservoir thickness and cap rock thickness, so as to obtain the reservoir distribution range and the cap rock distribution range; then, the overlapping range between the two distribution ranges is taken as the A of the reservoir combination. p .

[0100] Method B: In the absence of relevant reservoir distribution range and cap rock distribution range maps, find the relevant data of each discovered oil and gas reservoir in the oil and gas basin, and draw the corresponding oil and gas reservoir plane distribution map for each discovered oil and gas reservoir; then, for each set of reservoir combination, the range of all the oil and gas reservoir plane distribution maps corresponding to the reservoir combination is circled as the A of the reservoir combination. pi .

[0101] 4) Determine the undiscovered oil and gas resources (OOIP) of each reservoir combination Pi ):

[0102] ① Method 1: The research level of oil and gas basins is relatively high, and previous researchers have published OOIP for each set of reservoir combinations. Pi In this case, it can be adopted directly.

[0103] ② Method 2: The research level in oil and gas basins is relatively low, and no OOIP has been published by previous researchers Pi , or the OOIP published by predecessors Pi In case of ambiguity, OOIP can be recalculated Pi The specific method is as follows: for each set of reservoir combinations, the reserve scale of each discovered oil and gas reservoir in the reservoir combination is counted. On this basis, when the number of discovered oil and gas reservoirs in the reservoir combination is less than a preset number threshold (for example, 5, 6 or 7, etc.), the scale sequence method can be used to predict the OOIP in the reservoir combination. Pi Otherwise, the crystal ball method is used to predict the OOIP of the reservoir combination. Pi .

[0104] 5) Optimization of exploration areas:

[0105] ① Draw the plane distribution range A of each reservoir combination pi , and the plane distribution range A pi The corresponding oil and gas resource weight W is assigned internally pi ;

[0106] ② Obtain the oil and gas resource potential index of each reservoir combination pi =OOIP pi *W Pi ;

[0107] ③ Overlay the plane distribution ranges of multiple sets of reservoir combinations developed in the oil and gas basins, calculate the total oil and gas resource potential index at each location in the oil and gas basins, and draw a plane distribution map of the total oil and gas resource potential index in the oil and gas basins based on this;

[0108] ④ According to the plane distribution map of the total oil and gas resource potential index, the oil and gas-bearing basins are divided into different basin areas according to the value size. The total oil and gas resource potential index at each location in the same basin area is the same. Then, the basin area corresponding to the largest total oil and gas resource potential index is taken as the most favorable exploration area.

[0109] On this basis, the following takes the POM Basin in South America as an example to illustrate the above exploration area optimization process.

[0110] 1) Division of reservoir assemblages. Specifically, the POM basin is a typical Andean-type oil and gas-rich foreland basin, in which the main target layers are the Cretaceous Hollin Formation and Napo Formation, which can be divided into 9 sets of reservoir assemblages, see Figure 4 , from bottom to top: Pumbuiza Formation sandstone reservoir assemblage, Santiago Formation sandstone reservoir assemblage, Hollin Formation sandstone reservoir assemblage, Napo Formation T segment sandstone reservoir assemblage, Napo Formation U segment sandstone reservoir assemblage, Napo Formation M2ss sandstone-limestone reservoir assemblage, Napo Formation M1ss sandstone reservoir assemblage, Basel Tena Formation sandstone reservoir assemblage and Tiyuyacu sandstone reservoir assemblage.

[0111] 2) Determination of the oil and gas resource weights of the reservoir combination. Specifically, the total reserves of discovered oil and gas resources in each reservoir combination are calculated based on the IHS database, which are as follows from bottom to top: 0.01 million tons, 0.02 million tons, 439.9 million tons, 453.1 million tons, 463.0 million tons, 19.4 million tons, 358.7 million tons, 38.3 million tons and 12.8 million tons. Furthermore, based on the total reserves corresponding to each reservoir combination, the oil and gas resource weights of the nine reservoir combinations are obtained, which are as follows from bottom to top: 0.01, 0.01, 95.0, 97.9, 100.0, 4.2, 77.5, 8.3 and 2.8.

[0112] 3) Determination of the plane distribution range of the reservoir combination. Specifically, according to the plane distribution map of the oil and gas reservoirs corresponding to each discovered oil and gas reservoir in the POM basin, the plane distribution range of each set of reservoir combination is predicted. For example, Figure 5 The planar distribution ranges of the 9 sets of reservoir combinations described above are shown, where the irregular area circled by black lines represents the POM basin, and the gray filled area within the irregular area represents the planar distribution range. The color depth of the gray filled area may be related to the oil and gas resource weight, the amount of oil and gas resources to be discovered, or the oil and gas resource potential index of the corresponding reservoir combination.

[0113] 4) Determination of the amount of undiscovered oil and gas resources in the reservoir combination: The size series method and subjective probability method are used to predict the amount of undiscovered oil and gas resources in each reservoir combination, which are, from bottom to top, 1.63 million tons, 2.24 million tons, 676.5 million tons, 650.8 million tons, 971.5 million tons, 45.8 million tons, 454.8 million tons, 59.6 million tons and 25.5 million tons.

[0114] 5) Optimization of exploration areas: The plane distribution ranges of the nine sets of reservoir combinations are superimposed to obtain the total oil and gas resource potential index at each location in the POM basin, and based on this, a plane distribution map of the total oil and gas resource potential index is drawn, and then the most favorable area (i.e., the most favorable exploration area) is selected based on this, such as Figure 6 shown.

[0115] Figure 7 This is a structural block diagram of an exploration area determination device provided in an embodiment of the present invention, and the device is used to execute the exploration area determination method provided in any of the above embodiments. The device and the exploration area determination method of the above embodiments belong to the same inventive concept, and the details not fully described in the embodiments of the exploration area determination device can refer to the embodiments of the above exploration area determination method. Figure 7 As shown, the device may specifically include: a reservoir combination obtaining module 410, an oil and gas resource weight assignment module 420, a total oil and gas resource weight obtaining module 430 and an exploration area determination module 440.

[0116] The reservoir combination obtaining module 410 is used to divide the reservoir combination of the oil and gas basins in the exploration area to be determined, and obtain at least one reservoir combination;

[0117] The oil and gas resource weight assignment module 420 is used to determine the oil and gas resource weight and plane distribution range of each reservoir combination in at least one reservoir combination, and assign the oil and gas resource weight to the plane distribution range;

[0118] The total oil and gas resource weight obtaining module 430 is used to superimpose the plane distribution ranges corresponding to at least one reservoir combination, and obtain the total oil and gas resource weight at each location in the oil and gas basin according to the obtained superposition result and the oil and gas resource weights of the plane distribution ranges corresponding to at least one reservoir combination;

[0119] The exploration area determination module 440 is used to determine the exploration area within the oil and gas basin according to the total oil and gas resource weight at each location.

[0120] Optionally, the above exploration area determination device further includes:

[0121] The module for predicting the amount of undiscovered oil and gas resources is used to predict the amount of undiscovered oil and gas resources in the reservoir combination;

[0122] The oil and gas resource potential index obtaining module is used to obtain the oil and gas resource potential index of the plane distribution range with assigned oil and gas resource weights according to the amount of oil and gas resources to be discovered and the oil and gas resource weights;

[0123] The total oil and gas resource weight obtaining module 430 includes:

[0124] The total oil and gas resource weight obtaining unit is used to obtain the total oil and gas resource potential index at each location in the oil and gas basin according to the obtained superposition results and the oil and gas resource potential index of the plane distribution range corresponding to at least one reservoir combination, and use the total oil and gas resource potential index as the total oil and gas resource weight.

[0125] On this basis, the optional module for predicting the amount of oil and gas resources to be discovered includes:

[0126] A reserve scale acquisition unit, used to acquire the number of discovered oil and gas reservoirs in the reservoir combination and the reserve scale of each discovered oil and gas reservoir in the number of discovered oil and gas reservoirs;

[0127] The undiscovered oil and gas resources prediction unit is used to predict the undiscovered oil and gas resources of the reservoir combination based on the quantity and reserve scale of each discovered oil and gas reservoir.

[0128] Optionally, the exploration area determination module 440 includes:

[0129] The regional division unit is used to divide the oil and gas basins into regions according to the total oil and gas resource weight at each location;

[0130] The exploration area determination unit is used to determine the exploration area in the oil and gas basin from at least one basin area according to the total oil and gas resource weights corresponding to the at least one divided basin area.

[0131] On this basis, optional, regional division units are specifically used for:

[0132] According to the total oil and gas resource weight at each location, a plane distribution map of the total oil and gas resource weight is generated;

[0133] Based on the planar distribution map of total oil and gas resource weights, oil and gas basins are divided into regions.

[0134] Optionally, the oil and gas resource weight assignment module 420 may include:

[0135] The first oil and gas resource weight obtaining unit is used to obtain the total reserves of the discovered oil and gas reservoirs in each reservoir combination, and obtain the oil and gas resource weight of the reservoir combination according to the total reserves of the discovered oil and gas reservoirs in each reservoir combination and the total reserves of the discovered oil and gas reservoirs in the reservoir combination; or

[0136] The second oil and gas resource weight obtaining unit is used to obtain at least one artificially assigned weight manually assigned to the reservoir combination, and determine the oil and gas resource weight of the reservoir combination according to the at least one artificially assigned weight.

[0137] Optionally, the oil and gas resource weight assignment module 420 may include:

[0138] The first unit for obtaining the plane distribution range is used to determine the overlapping range between the reservoir distribution range and the cap rock distribution range corresponding to the reservoir combination, and use the overlapping range as the plane distribution range of the reservoir combination; or,

[0139] The second unit for obtaining the plane distribution range is used to enclose the range of the plane distribution map of the oil and gas reservoirs corresponding to at least one discovered oil and gas reservoir in the reservoir combination as the plane distribution range of the reservoir combination.

[0140] The exploration area determination device provided by the embodiment of the present invention divides the oil and gas basin into reservoir combinations through the reservoir combination acquisition module to obtain at least one reservoir combination; determines the oil and gas resource weight and plane distribution range of each reservoir combination in at least one reservoir combination through the oil and gas resource weight assignment module, and assigns the oil and gas resource weight to the plane distribution range; superimposes the plane distribution ranges corresponding to at least one reservoir combination through the total oil and gas resource weight acquisition module, and obtains the total oil and gas resource weight at each position in the oil and gas basin according to the obtained superposition result and the oil and gas resource weight of the plane distribution range corresponding to at least one reservoir combination; determines the exploration area in the oil and gas basin according to the total oil and gas resource weight at each position through the exploration area determination module. The above device realizes the objective and quantitative determination process of the exploration area by utilizing the advantages of the reservoir combination in the evaluation of oil and gas resources and the oil and gas resource weight that can reflect the difference in oil and gas enrichment between different reservoir combinations, thereby reducing the difficulty of determination and the degree to which the determination result is affected by the experience level of relevant personnel.

[0141] The exploration area determination device provided in the embodiment of the present invention can execute the exploration area determination method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0142] It is worth noting that in the embodiment of the above-mentioned exploration area determination device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0143] Figure 8A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, 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 processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0144] like Figure 8 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0145] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0146] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the exploration area determination method.

[0147] In some embodiments, the survey area determination method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the survey area determination method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the survey area determination method in any other appropriate manner (e.g., by means of firmware).

[0148] Various implementations 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 chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0149] Computer programs for implementing 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, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0150] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0151] To provide interaction with a user, the systems and techniques described herein may 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 trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0152] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may 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.

[0153] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may 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 difficult management and weak business scalability in traditional physical hosts and VPS services.

[0154] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0155] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining an exploration area, characterized in that: include: For the oil and gas basins in the exploration area to be determined, dividing the oil and gas basins into reservoir combinations to obtain at least one reservoir combination; For each reservoir combination in the at least one reservoir combination, determine the oil and gas resource weight and plane distribution range of the reservoir combination, and assign the oil and gas resource weight to the plane distribution range; Superimposing the plane distribution ranges corresponding to the at least one reservoir combination, and obtaining the total oil and gas resource weight at each location in the oil and gas basin according to the obtained superposition result and the oil and gas resource weights of the plane distribution ranges corresponding to the at least one reservoir combination; The exploration area within the oil and gas basin is determined based on the total oil and gas resource weight at each location.

2. The method according to claim 1, characterized in that Also includes: Predict the amount of undiscovered oil and gas resources in the reservoir combination; According to the amount of oil and gas resources to be discovered and the weight of the oil and gas resources, obtaining the oil and gas resource potential index of the plane distribution range to which the oil and gas resource weight has been assigned; The total oil and gas resource weight at each location in the oil and gas basin is obtained according to the obtained superposition result and the oil and gas resource weight of the plane distribution range corresponding to the at least one reservoir combination, including: According to the obtained superposition results and the oil and gas resource potential index of the plane distribution range corresponding to the at least one reservoir combination, the total oil and gas resource potential index at each location in the oil and gas basin is obtained, and the total oil and gas resource potential index is used as the total oil and gas resource weight.

3. The method according to claim 2, characterized in that The prediction of the amount of undiscovered oil and gas resources in the reservoir combination includes: Obtaining the number of discovered oil and gas reservoirs in the reservoir combination and the reserve scale of each discovered oil and gas reservoir among the number of discovered oil and gas reservoirs; Based on the quantity and the reserve scale of each discovered oil and gas reservoir, the amount of undiscovered oil and gas resources in the reservoir combination is predicted.

4. The method according to claim 1, characterized in that: Determining the exploration area in the oil and gas basin according to the total oil and gas resource weight at each location includes: Dividing the oil and gas basins into regions according to the total oil and gas resource weight at each location; According to the total oil and gas resource weights respectively corresponding to at least one divided basin area, an exploration area within the oil and gas bearing basin is determined from the at least one basin area.

5. The method according to claim 4, characterized in that The regional division of the oil and gas basins according to the total oil and gas resource weight at each location includes: Generating a planar distribution map of total oil and gas resource weights according to the total oil and gas resource weights at each location; The oil and gas bearing basins are divided into regions according to the total oil and gas resource weight plane distribution map.

6. The method according to claim 1, characterized in that Determining the oil and gas resource weight of the reservoir combination includes: Obtaining the total reserves of discovered oil and gas reservoirs in each reservoir combination, and obtaining the oil and gas resource weight of the reservoir combination according to the total reserves of discovered oil and gas reservoirs in each reservoir combination and the total reserves of discovered oil and gas reservoirs in the reservoir combination; or, At least one artificially assigned weight manually assigned to the reservoir combination is obtained, and the oil and gas resource weight of the reservoir combination is determined according to the at least one artificially assigned weight.

7. The method according to claim 1, characterized in that Determining the plane distribution range of the reservoir combination includes: Determine the overlapping range between the reservoir distribution range and the cap rock distribution range corresponding to the reservoir combination, and use the overlapping range as the plane distribution range of the reservoir combination; or The range of the plane distribution map of the oil and gas reservoirs corresponding to at least one discovered oil and gas reservoir in the oil and gas reservoir combination is used as the plane distribution range of the oil and gas reservoir combination.

8. A device for determining an exploration area, characterized in that: include: A reservoir combination obtaining module is used to divide the reservoir combination of the oil and gas basins in the exploration area to be determined, and obtain at least one reservoir combination; An oil and gas resource weight assignment module, for determining the oil and gas resource weight and plane distribution range of each reservoir combination in the at least one reservoir combination, and assigning the oil and gas resource weight to the plane distribution range; A total oil and gas resource weight obtaining module is used to superimpose the plane distribution ranges corresponding to the at least one reservoir combination, and obtain the total oil and gas resource weight at each position in the oil and gas basin according to the obtained superposition result and the oil and gas resource weights of the plane distribution ranges corresponding to the at least one reservoir combination; The exploration area determination module is used to determine the exploration area in the oil and gas basin according to the total oil and gas resource weight at each location.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to 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 determining an exploration area according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining an exploration area as described in any one of claims 1 to 7 when executed.

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