Trap screening method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses a trap screening method and device, electronic equipment and a storage medium. The method comprises the following steps: for each target stratum in at least one target stratum on an exploration area of a to-be-screened trap, determining an oil-gas weight coefficient of the target stratum according to oil-gas primary production data and oil-gas accumulated production data of the target stratum, and respectively determining an oil-gas resource quantity of each identified trap on the target stratum; aiming at each trap in all the identified traps on the exploration area, taking a target layer associated with the trap in the at least one target layer as an associated layer; according to the obtained oil and gas weight coefficient corresponding to the at least one correlation layer and the oil and gas resource amount corresponding to the trap on the at least one correlation layer, the total resource amount of the trap is obtained; and screening out a target trap of the exploration area from all the traps according to the total resource quantity corresponding to each trap in all the traps. According to the technical scheme provided by the embodiment of the invention, the target trap ensuring successful production can be screened out.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of oil and gas exploration, and in particular to a trap screening method, device, electronic equipment and storage medium. Background Art

[0002] Oil and gas are the blood of modern industry, and ensuring the supply of oil and gas energy is the cornerstone of ensuring rapid economic development. Oil and gas are mainly found in underground porous and permeable rocks. Due to the spatial heterogeneity of reservoir properties, the oil and gas enrichment in different reservoirs in the vertical direction of the oil and gas basin is different. For example, in the same oil and gas basin, the oil and gas production of the same well in different reservoirs is different. Therefore, trap optimization is very important for drilling success.

[0003] It should be noted that for mature exploration areas (i.e. areas with a high degree of exploration), drilling needs to achieve not only geological success (such as the discovery of oil and gas, etc.), but also production success. Compared with the former, mature exploration areas pay more attention to the latter.

[0004] However, the currently used closed-loop screening scheme cannot guarantee production success and needs to be improved. Summary of the invention

[0005] The embodiments of the present invention provide a trap screening method, device, electronic device and storage medium to achieve effective screening of target traps that can ensure successful production.

[0006] According to one aspect of the present invention, a method for trap screening is provided, which may include:

[0007] For each target layer in at least one target layer on the exploration area of ​​the trap to be screened, determine the oil and gas weight coefficient of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer, and respectively determine the oil and gas resource volume of each identified trap on the target layer;

[0008] For each of all the identified traps in the exploration area, taking a target layer associated with the trap in at least one target layer as an associated layer;

[0009] Obtain the total trapped resources according to the obtained oil and gas weight coefficients corresponding to the at least one associated layer and the oil and gas resources corresponding to the at least one associated layer;

[0010] According to the total resources corresponding to each trap in all the traps, the target traps in the exploration area are selected from all the traps.

[0011] According to another aspect of the present invention, there is provided a closed screening device, which may include:

[0012] The oil and gas resource determination module is used to determine the oil and gas weight coefficient of each target layer in at least one target layer on the exploration area of ​​the to-be-screened trap according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer, and to determine the oil and gas resource of each identified trap on the target layer respectively;

[0013] The associated layer obtaining module is used for taking, for each of all the identified traps in the exploration area, a target layer associated with the trap in at least one target layer as an associated layer;

[0014] A total resource volume obtaining module is used to obtain the total resource volume of the trap according to the oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resource volume corresponding to the at least one associated layer;

[0015] The trap screening module is used to screen out target traps in the exploration area from all the traps according to the total resource volume corresponding to each trap in all the traps.

[0016] According to another aspect of the present invention, there is provided an electronic device, which may include:

[0017] at least one processor; and

[0018] a memory communicatively connected to at least one processor; wherein,

[0019] 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 at least one processor implements the trap screening method provided by any embodiment of the present invention when executing the computer program.

[0020] 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 closure screening method provided by any embodiment of the present invention when executed.

[0021] The technical solution of the embodiment of the present invention is to determine the oil and gas weight coefficient of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer for each target layer in the exploration area for the to-be-screened traps, and respectively determine the oil and gas resource volume of each identified trap on the target layer; for each of all the identified traps in the exploration area, use the target layer associated with the trap in at least one target layer as an associated layer; obtain the total resource volume of the trap according to the oil and gas weight coefficient corresponding to the at least one associated layer, and the oil and gas resource volume corresponding to the trap in the at least one associated layer; and screen the target traps in the exploration area from all the traps according to the total resource volume corresponding to each of all the traps. The above technical scheme reflects the differences in initial oil and gas production and mass oil and gas production of different target layers through the oil and gas weight coefficient, and thus uses the oil and gas weight coefficient to determine the total resources, which can effectively increase the proportion of oil and gas resources in the target layers with high initial production and high cumulative production in the total resources, and then screen closures based on this, which can effectively improve the rationality and scientificity of closure screening, and thus increase the probability of obtaining high cumulative production and high initial production during drilling.

[0022] 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

[0023] 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.

[0024] Figure 1 is a flow chart of a trap screening method provided according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of another closure screening method provided according to an embodiment of the present invention;

[0026] Figure 3 is a flow chart of another method for trap screening provided according to an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of well seismic layer calibration results in another trap screening method provided according to an embodiment of the present invention;

[0028] Figure 5It is a schematic diagram of a seismic tracing interpretation section of a main east-west target layer in an exploration area in another trap screening method provided according to an embodiment of the present invention;

[0029] Figure 6 is a schematic diagram of a top surface depth domain structure diagram of a LUT in another trap screening method provided according to an embodiment of the present invention;

[0030] Figure 7 is a schematic diagram of a LUT and LUF reservoir seismic inversion prediction section in another trap screening method provided according to an embodiment of the present invention;

[0031] Figure 8 is a schematic diagram of a LUT reservoir thickness plane distribution diagram in another trap screening method provided according to an embodiment of the present invention;

[0032] Fig. 9 It is a schematic diagram of the trap distribution diagrams of four target layers, namely, LUT, LUF, UT and LT, in another trap screening method provided according to an embodiment of the present invention;

[0033] Fig.10 is a structural block diagram of a closed screening device provided according to an embodiment of the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of an electronic device for implementing the trap screening method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] Figure 1 This is a flow chart of a method for trap screening provided in an embodiment of the present invention. This embodiment is applicable to the case of trap optimization in an exploration area, and is particularly applicable to the case of trap optimization in multiple target layers in a mature exploration area. The method can be executed by a trap screening 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.

[0038] See also Figure 1 The method of the embodiment of the present invention specifically includes the following steps:

[0039] S110. For each target layer in at least one target layer in the exploration area to be screened for closures, determine the oil and gas weight coefficient of the target layer based on the initial oil and gas production data and the cumulative oil and gas production data of the target layer, and determine the oil and gas resource volume of each identified closure on the target layer.

[0040] The exploration area can be understood as an area where a target trap is to be selected for oil and gas exploration. In combination with the application scenarios that may be involved in the embodiments of the present invention, it can be a low exploration degree area or a high exploration degree area (i.e., a mature exploration area), and in particular, it can be a mature exploration area. The target layer can be understood as a reservoir layer on the exploration area that can be explored for oil and gas. The number of the target layers can be one, two, or more, which is related to the actual situation and is not specifically limited here.

[0041] For each target layer in at least one target layer, the initial oil and gas production data of the target layer can be understood as data related to the initial oil and gas production, such as the initial production of each production well on the target layer or the total initial production of all production wells, etc., which are not specifically limited here; the cumulative oil and gas production data of the target layer can be understood as data related to the cumulative oil and gas production, such as the cumulative production of each production well on the target layer or the total cumulative production of all production wells, etc., which are not specifically limited here. The initial oil and gas production data and the cumulative oil and gas production data of the target layer are obtained, and then the oil and gas weight coefficient of the target layer can be determined according to the initial oil and gas production data and the cumulative oil and gas production data. It can be seen from this that the oil and gas weight coefficient can reflect whether the target layer is a reservoir with high initial production and high cumulative production, which helps to reflect the differences between different target layers.

[0042] S120. For each of all identified traps in the exploration area, use a target layer associated with the trap in at least one target layer as an associated layer.

[0043] The trap can be understood as an identified trap in the exploration area, and the number of the traps can be one, two or more, which is related to the actual situation and is not specifically limited here. For each of the identified traps, a target layer associated with the trap in at least one target layer is used as an associated layer, that is, the target layer where the trap is located is used as an associated layer, and the number of the associated layers can be one, two or more, which is related to the actual situation and is not specifically limited here.

[0044] S130, obtaining the total trapped resources according to the obtained oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resources corresponding to the at least one associated layer.

[0045] Among them, for each associated layer in at least one associated layer associated with the trap, the oil and gas resource volume corresponding to the trap on the associated layer can be understood as the volume of oil and gas resources in the area selected by the trap on the associated layer. On this basis, the total resource volume of the trap can be obtained according to the oil and gas weight coefficients corresponding to the at least one associated layer and the oil and gas resource volume corresponding to the trap on the at least one associated layer.

[0046] It should be noted that the above-mentioned total resource volume is not simply obtained by mathematically adding up the oil and gas resources corresponding to the closure in the at least one associated layer, but is obtained by fully considering the differences in the initial oil and gas production and the oil and gas mass production of different associated layers (i.e., the oil and gas weight coefficient). This is conducive to increasing the proportion of oil and gas resources in the associated layers with high initial production and high cumulative production in the total resources, and then combined with subsequent steps, it is helpful to screen out target closures that can ensure successful production.

[0047] S140, selecting target traps in the exploration area from all the traps according to the total resource volume corresponding to each trap in all the traps.

[0048] Among them, after obtaining the total resource volume corresponding to each closure in the exploration area, the target closure can be screened out from these closures based on these total resources. For example, the closure with the largest or larger total resource volume can be selected as the target closure. The target closure can effectively ensure the production success of the drilling (i.e., high initial production and high cumulative production), thereby greatly improving the economic efficiency of the project.

[0049] The technical solution of the embodiment of the present invention is to determine the oil and gas weight coefficient of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer for each target layer in the exploration area for the to-be-screened traps, and respectively determine the oil and gas resource volume of each identified trap on the target layer; for each of all the identified traps in the exploration area, use the target layer associated with the trap in at least one target layer as an associated layer; obtain the total resource volume of the trap according to the oil and gas weight coefficient corresponding to the at least one associated layer, and the oil and gas resource volume corresponding to the trap in the at least one associated layer; and screen the target traps in the exploration area from all the traps according to the total resource volume corresponding to each of all the traps. The above technical scheme reflects the differences in initial oil and gas production and mass oil and gas production of different target layers through the oil and gas weight coefficient, and thus uses the oil and gas weight coefficient to determine the total resources, which can effectively increase the proportion of oil and gas resources in the target layers with high initial production and high cumulative production in the total resources, and then screen closures based on this, which can effectively improve the rationality and scientificity of closure screening, and thus increase the probability of obtaining high cumulative production and high initial production during drilling.

[0050] An optional technical solution, after selecting the target trap in the exploration area from all the traps, the trap screening method further includes: for the area where the reservoir is developed in the target trap, according to the oil and gas enrichment control factors corresponding to the area, determining the drilling position in the area. Among them, it has been proved in practice that the oil and gas production of different production wells in the same oil and gas basin on the same reservoir may be very different, so the optimization of the drilling position is also crucial to the success of drilling. The oil and gas enrichment control factors can be understood as factors that can control the degree of oil and gas enrichment, such as reservoir sweet spots and structural highs. For the area where the reservoir is developed in the target trap, the drilling position in the area can be determined according to the oil and gas enrichment control factors corresponding to the area. The above technical solution further ensures the probability of economic success of drilling by optimizing the drilling position.

[0051] Figure 2It is a flow chart of another closure screening method provided by an embodiment of the present invention. This embodiment is optimized based on the above-mentioned technical solutions. In this embodiment, optionally, according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer, the oil and gas weight coefficient of the target layer is determined, including: obtaining the initial oil and gas production data and the cumulative oil and gas production data of the target layer; determining the drilling economic compliance rate of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data, and, according to the cumulative oil and gas production data, determining the total cumulative production of the target layer; determining the maximum cumulative production with the largest value in the total cumulative production corresponding to at least one target layer; determining the oil and gas weight coefficient of the target layer according to the drilling economic compliance rate, the total cumulative production and the maximum cumulative production. Among them, the explanations of the terms that are the same or corresponding to the above-mentioned embodiments are not repeated here.

[0052] See also Figure 2 The method of this embodiment may specifically include the following steps:

[0053] S210. For each target layer in at least one target layer in the exploration area to be subjected to trap screening, initial oil and gas production data and cumulative oil and gas production data of the target layer are obtained.

[0054] S220, determining the drilling economic compliance rate of the target layer based on the initial oil and gas production data and the cumulative oil and gas production data, and determining the total cumulative production of the target layer based on the cumulative oil and gas production data.

[0055] Among them, the drilling economic compliance rate can be understood as the compliance rate in terms of economic benefits after drilling in the target layer. The drilling economic compliance rate is determined based on the initial oil and gas production data and the cumulative oil and gas production data. The total cumulative production can be understood as the sum of the single well cumulative production of all production wells in the target layer. The total cumulative production is determined based on the cumulative oil and gas production data.

[0056] S230. Determine the maximum cumulative yield having the largest value among the total cumulative yields corresponding to at least one target layer.

[0057] The maximum cumulative yield can be understood as the total cumulative yield with the largest value among the total cumulative yields corresponding to all target layers.

[0058] S240. Determine the oil and gas weight coefficient of the target layer according to the drilling economic compliance rate, the total cumulative production and the maximum cumulative production.

[0059] Among them, the oil and gas weight coefficient is determined according to the drilling economic compliance rate, total cumulative production and maximum cumulative production obtained above, so that the oil and gas weight coefficient can be linked to the drilling economic compliance rate, total cumulative production and maximum cumulative production, which helps to further ensure the economic maximization of the target closures screened out subsequently.

[0060] S250, respectively determining the oil and gas resource volume of each identified trap on the target layer.

[0061] S260: For each of all identified traps in the exploration area, use a target layer associated with the trap in at least one target layer as an associated layer.

[0062] S270, obtaining the total trapped resources according to the obtained oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resources corresponding to the at least one associated layer.

[0063] S280. Select target traps for the exploration area from all the traps according to the total resources corresponding to each trap in all the traps.

[0064] The technical solution of the embodiment of the present invention can determine the oil and gas weight coefficient based on the drilling economic compliance rate and the total cumulative production of the target layer and the maximum cumulative production of all the total cumulative production, which helps to further ensure the economic maximization of the target closure selected subsequently.

[0065] An optional technical solution, the initial oil and gas production data may include the initial production of each production well on the target layer, and the cumulative oil and gas production data may include the cumulative production of each production well. Based on the initial oil and gas production data and the cumulative oil and gas production data, the drilling economic compliance rate of the target layer is determined, which may include:

[0066] Determine the number of production wells on the target layer, as well as the economic limit daily production of a single well and the economic limit cumulative production of a single well in the exploration area; determine the first number of production wells on the target layer whose initial production is greater than the economic limit daily production of a single well based on the initial production of each production well; determine the second number of production wells on the target layer whose cumulative production is greater than the economic limit cumulative production of a single well based on the cumulative production of each production well; determine a first ratio based on the first number and the number of wells, and determine a second ratio based on the second number and the number of wells; determine the drilling economic compliance rate of the target layer based on the first ratio and the second ratio.

[0067] The above technical solution realizes the rapid and accurate determination of the drilling economic compliance rate.

[0068] Figure 3It is a flow chart of another method for trap screening provided by 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 trap screening also includes: determining the type of reservoir developed in the target layer, as well as the top surface depth domain structural map and / or the reservoir thickness plane distribution map of the target layer; in the case where the trap corresponding to the reservoir type is a structural trap, according to the top surface depth domain structural map, the structural trap on the target layer is identified; in the case where the trap corresponding to the reservoir type is a lithological trap, according to the reservoir thickness plane distribution map, the lithological trap on the target layer is identified; in the case where the trap corresponding to the reservoir type is a structural-lithological trap, according to the reservoir thickness plane distribution map and the reservoir thickness plane distribution map, the structural-lithological trap on the target layer is identified. Among them, the explanations of the terms that are the same or corresponding to the above-mentioned embodiments are not repeated here.

[0069] See also Figure 3 The method of this embodiment may specifically include the following steps:

[0070] S310. For each target layer in at least one target layer in the exploration area to be screened for traps, determine an oil and gas weight coefficient of the target layer according to initial oil and gas production data and cumulative oil and gas production data of the target layer.

[0071] S320, determining the reservoir type developed in the target layer, as well as the top surface depth domain structural map and / or reservoir thickness plane distribution map of the target layer.

[0072] S330, in the case where the trap corresponding to the reservoir type is a structural trap, identifying the structural trap on the target layer according to the top surface depth domain structural map;

[0073] When the trap corresponding to the reservoir type is a lithologic trap, the lithologic trap on the target layer is identified based on the reservoir thickness plane distribution map;

[0074] In the case where the trap corresponding to the reservoir type is a structural-lithological trap, the structural-lithological trap on the target layer is identified based on the reservoir thickness plane distribution map and the reservoir thickness plane distribution map.

[0075] S340, respectively determine the oil and gas resource volume of each identified trap on the target layer.

[0076] The trap described in this step may be a structural trap, a lithological trap, or a structural-lithological trap, etc. This depends on the actual situation and is not specifically limited here.

[0077] S350: For each of all identified traps in the exploration area, use a target layer associated with the trap in at least one target layer as an associated layer.

[0078] S360: Obtain the total trapped resources according to the obtained oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resources corresponding to the at least one associated layer.

[0079] S370, selecting target traps for the exploration area from all the traps according to the total resource volume corresponding to each trap in all the traps.

[0080] The technical solution of the embodiment of the present invention determines the reservoir type developed in the target layer and identifies the corresponding type of closure according to the reservoir type, thereby achieving the effect of accurate closure identification.

[0081] An optional technical solution, the above-mentioned trap screening method further includes:

[0082] The target layer is calibrated by well-seismic layer position, and seismic tracing interpretation is performed based on the well-seismic layer position calibration results to compile a top surface time domain structural map of the target layer;

[0083] Establish the time-depth relationship of the exploration area for the exploration area, and compile the top surface depth domain structural map based on the time-depth relationship of the exploration area and the top surface time domain structural map;

[0084] Reservoir seismic inversion prediction is carried out for the target layer to obtain the planar distribution map of reservoir thickness.

[0085] The above technical solution realizes the effective compilation of the top surface depth domain structural map and the effective acquisition of the reservoir thickness plane distribution map, thereby achieving the effect of effective identification of closures.

[0086] On this basis, optionally, the oil and gas resources of each identified trap on the target layer are determined separately, including:

[0087] Draw a trap distribution map based on each identified trap on the target layer;

[0088] According to the trap distribution map, top depth domain structure map and reservoir thickness plane distribution map, the trap area, trap closure and reservoir thickness are obtained;

[0089] According to the logging interpretation results of the wells drilled in the exploration area, the porosity and oil saturation distribution range of the target layer are statistically analyzed;

[0090] The volume coefficient is obtained based on the experimental analysis data of crude oil in the exploration area or the adjacent area of ​​the exploration area;

[0091] The oil and gas resources of each trap are determined according to at least one of the trap area, trap closure, reservoir thickness, porosity, oil saturation distribution range and volume coefficient.

[0092] The above technical solution realizes the accurate determination of oil and gas resources.

[0093] In order to better understand the above technical solutions as a whole, the following is an explanation with reference to specific examples.

[0094] 1) Through comprehensive geological analysis, determine at least one target layer and the type of reservoir developed in the exploration area

[0095] ① Carry out regional survey and analysis, collect research data of the basin where the exploration area is located, and clarify the vertical development characteristics of the reservoir;

[0096] ② Collect relevant data on discovered oil and gas reservoirs in the basin and determine the information on the oil and gas reservoir production layers and reservoir types;

[0097] ③ Carry out comprehensive interpretation of well logging in the exploration area, and collect statistics on the stratigraphic information of reservoirs and oil layers encountered by drilling; carry out dissection of discovered oil reservoirs in the exploration area and analyze the types of oil reservoirs;

[0098] ④Combining the information from ① to ③ (i.e. comprehensive geological analysis), identify at least one target layer developed vertically in the exploration area and name them R in turn. i (i is a natural number), and the reservoir types developed in different target layers are clarified.

[0099] 2) Top surface structure map of target layer and reservoir distribution prediction

[0100] ① Carry out well seismic layer calibration to identify the target layer R i The seismic response characteristics of the exploration area are obtained and the time-depth relationship of the exploration area is established: d = f(t), where d is the depth in meters (m); t is the time in milliseconds (ms);

[0101] ② According to the well seismic layer calibration results, complete the target layer R i Seismic tracing interpretation, compilation of target layer R i The top surface time domain structure diagram is then compiled based on the established d = f(t) to compile the target layer R i Top surface depth domain structure diagram D Ri (i is a natural number);

[0102] ③ Carry out target layer R i Reservoir seismic inversion prediction, clear reservoir thickness plane distribution map M of target layer Ri Ri (i is a natural number).

[0103] 3) Determine the target layer R i Oil and gas weight coefficient

[0104] ① Determine the economic limit daily production of a single well in the exploration area (L 日产_Ri ) and the single well economic limit cumulative production (L累产_Ri );

[0105] ② Establish a production dynamic database of production wells in the exploration area to count the R i The number of production wells on Ri ), total cumulative output (TOTAL.CUM.Oil Ri ), the initial production of a single well is greater than the economic limit daily production of a single well (L 日产_Ri ) of the first number of production wells NI Ri , the cumulative production of a single well is greater than the economic limit cumulative production of a single well (L 累产_Ri ) of the second number of production wells NC Ri ;

[0106] ③Calculate the target layer R i Drilling economic compliance rate FE Ri

[0107] The first ratio RI is calculated by the following formula Ri (The value is between 0 and 1): RI Ri =NI Ri / N Ri , that is, the first ratio RI Ri Indicates that the initial production of a single well is greater than the economic limit daily production of a single well (L 日产_Ri ) ratio;

[0108] The second ratio RC is calculated by the following formula Ri (The value is between 0 and 1): RC Ri =NC Ri / N Ri , that is, the second ratio RC Ri Indicates that the cumulative production of a single well is greater than the economic limit cumulative production of a single well (L 累产_Ri ) ratio;

[0109] Then the drilling economic compliance rate FE in the target layer Ri is calculated by the following formula: Ri :FE Ri =(RI Ri+ 2*RC Ri ) / 3;

[0110] ④ Calculate the target layer R i The oil and gas weight coefficient F Ri

[0111] According to the target layer R i Total cumulative output (TOTAL.CUM.Oil Ri ) and the maximum cumulative production of a single target layer in the exploration area MAX.(TOTAL.CUM.Oil), calculate the target layer R i The oil and gas weight coefficient F Ri, the calculation formula is as follows:

[0112] F Ri =FE Ri* (TOTAL.CUM.Oil Ri ) / MAX(TOTAL.CUM.Oil).

[0113] 4) Target layer R i Trap identification and oil and gas resource evaluation

[0114] ① Target layer R i Trap identification

[0115] According to the main reservoir types in the exploration area determined in step 1), different types of traps are identified according to the reservoir types, and each target layer (R i ) of the trap distribution map MT Ri (i is a natural number):

[0116] Structural traps can be classified according to the target layer R i Top surface depth domain structure diagram D Ri Identification: Lithologic traps can be identified based on the target layer R i Planar distribution diagram of reservoir thickness M Ri Identification: Structural-lithological traps can be identified based on the target layer R i Top surface depth domain structure diagram D Ri And the reservoir thickness distribution map M Ri Joint identification. After all the traps are identified, they are named T Ri-j (i, j are both natural numbers). It is worth noting that when a trap is superimposed in different target layers, the j value can be kept the same when naming it.

[0117] ② Calculation of trapped oil and gas resources

[0118] First, according to the target layer R i Traps distribution map MT Ri , Reservoir thickness plane distribution map M Ri And top surface depth domain structure diagram D Ri , read the trap area, trap closure and target layer R i Then, according to the logging interpretation results of the wells drilled in the exploration area, the target layer R i The porosity and oil saturation distribution range is calculated; then, the volume coefficient is obtained based on the experimental analysis data of crude oil in the exploration area or adjacent areas; finally, the Monte Carlo method is used to calculate the oil and gas resources OOIP of each trap in each target layer, with the target layer R i Development of a closed T Ri-j For example, the trap is in the target layer R iThe oil and gas resources can be written as OOIP TRi-j , other closures are similar.

[0119] 5) Calculation of total trapped resources

[0120] ① For the case where there is only one target layer R in the vertical direction i Developmental Trap Ri-j , its total resource volume TOOIP TRi-j Equal to the trap T Ri-j In the target layer R i Oil and gas resources OOIP TRi-j Multiply by the target layer R i The oil and gas weight coefficient F Ri , which can be calculated using the following formula: TOOIP TRi-j =F Ri ×OOIP TRi-j ;

[0121] ②When a closed T Ri-j When multiple target layers are developed in the vertical direction, the total resource TOOIP TRi-j can be equal to the trap T Ri-j The total amount of oil and gas resources in each target layer multiplied by the oil and gas weight coefficient of the target layer is calculated as follows: TOOIP TRi-j =F R1 ×OOIP TR1-j +F R2 ×OOIP TR2-j +······F Ri ×OOIP TRi-j .

[0122] 6) Optimal selection of target traps and drilling locations (i.e. well locations)

[0123] The total resource TOOIP of each trap calculated according to step 5) TRi-j The value of the trap is used to queue all the traps, and then the first or last place in the queue is ranked (i.e. the total resource TOOIP TRi-j The largest trap is selected as the target trap. On this basis, the wells are further deployed at relatively high locations in the reservoir-developed areas within the target trap, so as to make the final well location optimization suggestion.

[0124] In the above example, two parameters, namely, the oil and gas weight coefficient of the target layer and the drilling economic compliance rate, are proposed. They are linked to the first ratio of the initial production of a single well to the daily production of the economic limit of the single well, the second ratio of the cumulative production of a single well to the cumulative production of the economic limit of the single well, and the total cumulative production. The differences between different target layers are fully considered. The use of the oil and gas weight coefficient can effectively increase the proportion of oil and gas resources in the target layers with high initial production and high cumulative production in the total resources, thereby improving the scientificity and rationality of the closure queue, and thus effectively increasing the probability of drilling to obtain high cumulative production and high initial production, greatly improving the economic efficiency.

[0125] Here, the optimization of the Cretaceous traps in Block X of the Oriente Basin is taken as an example for further explanation. Block X is a southwest-dipping monocline as a whole, with faults on both the east and west boundaries, and no faults are developed within the block.

[0126] 1) There are multiple target layers in the Cretaceous System in the exploration area, including LUT, LUF, UT and LT;

[0127] 2) Different target layers develop different reservoir types, among which LUT and UT develop structural-lithological composite and lithological reservoirs, and LT and LUF develop structural reservoirs;

[0128] 3) Through the well seismic layer calibration of 15 production wells (see Figure 4 ), the seismic response characteristics of LUT, LUF, UT and LT can be clarified, and the time-depth relationship of the exploration area can be established; by performing seismic tracing interpretation on the target layer (see Figure 5 ), the top surface time domain structure map and top surface depth domain structure map of the target layer can be completed (see Figure 6 );

[0129] 4) Carry out reservoir seismic inversion prediction of LUT, LUF, UT and LT (see Figure 7 ), and obtain 4 sets of target layer reservoir thickness distribution maps (see Figure 8 );

[0130] 5) Based on the previous data statistics of the exploration area, the economic limit daily production of a single well in the exploration area (L 日产_Ri ) is 50 barrels per day, and the economic limit cumulative production of a single well (L 累产_Ri ) is 200,000 barrels. The initial production and cumulative production of a single well in the X block layer are counted by target layer, and the initial production of a single well in different target layers is calculated to be greater than the economic limit daily production of a single well (L 日产_Ri ) of the first number of production wells RI Ri And the cumulative production of a single well is greater than the economic limit cumulative production of a single well (L 累产_Ri ) of the second number of production wells NC Ri , and calculate the oil and gas weight coefficient of each target layer (Table 1);

[0131] Table 1 Statistics of initial production and cumulative production of single wells in different target layers in the exploration area

[0132]

[0133] 6) Complete the identification and description of the traps in the four target layers, namely LUT, LUF, UT and LT, according to the trap types, and draw the trap distribution map (see Fig. 9 );

[0134] 7) Calculate the oil and gas resources of the four target layers: LUT, LUF, UT and LT;

[0135] 8) According to the oil and gas weight coefficient of each target layer calculated in step 5), the total resource volume of each trap of the four target layers, namely, LUT, LUF, UT and LT, is calculated respectively;

[0136] 9) According to the calculated total resources, the traps were ranked, and trap No. 3 (see Table 2) was selected. Referring to the top surface depth domain structure map obtained in step 3) and the reservoir thickness plane distribution map obtained in step 4), one production well was selected. After actual drilling, the production well achieved a high production of 700 barrels per day in the LUT test, proving the effectiveness of the above scheme.

[0137] Table 2 Calculation results of trap resources in different target layers in the exploration area

[0138]

[0139]

[0140] Fig.10 This is a structural block diagram of a trap screening device provided in an embodiment of the present invention, and the device is used to execute the trap screening method provided in any of the above embodiments. The device and the trap screening method of the above embodiments belong to the same inventive concept, and the details not described in detail in the embodiments of the trap screening device can refer to the embodiments of the above trap screening method. Fig.10 The device may specifically include: an oil and gas resource determination module 410 , an associated layer acquisition module 420 , a total resource acquisition module 430 , and a trap screening module 440 .

[0141] The oil and gas resource determination module 410 is used to determine the oil and gas weight coefficient of each target layer in at least one target layer on the exploration area to be screened for the trapped area according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer, and to determine the oil and gas resource of each identified trapped area on the target layer.

[0142] The associated layer obtaining module 420 is used for taking, for each of all the identified traps in the exploration area, a target layer associated with the trap in at least one target layer as an associated layer;

[0143] The total resource volume obtaining module 430 is used to obtain the total resource volume of the trap according to the oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resource volume corresponding to the at least one associated layer;

[0144] The trap screening module 440 is used to screen out target traps in the exploration area from all the traps according to the total resource volume corresponding to each of the traps.

[0145] Optionally, the oil and gas resource determination module 410 may include:

[0146] An oil and gas cumulative production data acquisition unit is used to acquire the initial oil and gas production data and the oil and gas cumulative production data of the target layer;

[0147] The total cumulative production determination unit is used to determine the drilling economic compliance rate of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data, and to determine the total cumulative production of the target layer according to the cumulative oil and gas production data;

[0148] A maximum cumulative yield determination unit, used to determine a maximum cumulative yield having the largest value among the total cumulative yields corresponding to at least one target layer;

[0149] The oil and gas weight coefficient determination unit is used to determine the oil and gas weight coefficient of the target layer according to the drilling economic compliance rate, the total cumulative production and the maximum cumulative production.

[0150] On this basis, optionally, the initial oil and gas production data may include the initial production of each production well on the target layer, and the cumulative oil and gas production data may include the cumulative production of each production well. The total cumulative production determination unit may include:

[0151] The single well economic limit cumulative production determination subunit is used to determine the number of production wells on the target layer, as well as the single well economic limit daily production and the single well economic limit cumulative production in the exploration area;

[0152] A first quantity determination subunit is used to determine, based on the initial production of each production well, the first number of production wells on the target layer whose initial production of the single well is greater than the economic limit daily production of the single well;

[0153] A second number determination subunit is used to determine, based on the single-well cumulative production of each production well, the second number of production wells on the target layer whose single-well cumulative production is greater than the single-well economic limit cumulative production;

[0154] a second ratio determination subunit, configured to determine a first ratio based on the first quantity and the number of wells, and to determine a second ratio based on the second quantity and the number of wells;

[0155] The drilling economic compliance rate determination subunit is used to determine the drilling economic compliance rate of the target layer according to the first ratio and the second ratio.

[0156] Optionally, the above-mentioned closed screening device further comprises:

[0157] A reservoir thickness plane distribution map determination module is used to determine the reservoir type developed in the target layer, as well as the top surface depth domain structural map and / or reservoir thickness plane distribution map of the target layer;

[0158] A structural trap identification module is used to identify the structural trap on the target layer according to the top surface depth domain structural map when the trap corresponding to the reservoir type is a structural trap;

[0159] A lithologic trap identification module is used to identify the lithologic trap on the target layer according to the reservoir thickness plane distribution map when the trap corresponding to the reservoir type is a lithologic trap;

[0160] The structural-lithological trap identification module is used to identify the structural-lithological trap on the target layer according to the reservoir thickness plane distribution map and the reservoir thickness plane distribution map when the trap corresponding to the reservoir type is a structural-lithological trap.

[0161] On this basis, optionally, the above-mentioned closed screening device further includes:

[0162] The top surface time domain structural map compilation module is used to perform well-seismic layer calibration for the target layer, and perform seismic tracing interpretation based on the well-seismic layer calibration results to compile the top surface time domain structural map of the target layer;

[0163] The top surface depth domain structural map compilation module is used to establish the time-depth relationship of the exploration area for the exploration area, and compile the top surface depth domain structural map according to the time-depth relationship of the exploration area and the top surface time domain structural map;

[0164] The reservoir thickness plane distribution map obtaining module is used to perform reservoir seismic inversion prediction on the target layer to obtain the reservoir thickness plane distribution map.

[0165] Alternatively, the oil and gas resource determination module 410 includes:

[0166] A trap distribution map drawing unit is used to draw a trap distribution map according to each identified trap on the target layer;

[0167] The reservoir thickness obtaining unit is used to obtain the trap area, trap closure and reservoir thickness according to the trap distribution map, the top depth domain structural map and the reservoir thickness plane distribution map;

[0168] The oil saturation distribution range statistics unit is used to count the porosity and oil saturation distribution range of the target layer based on the logging interpretation results of the wells drilled in the exploration area;

[0169] The volume coefficient obtaining unit is used to obtain the volume coefficient according to the crude oil experimental analysis data of the exploration area or the adjacent area of ​​the exploration area;

[0170] The oil and gas resource determination unit is used to determine the oil and gas resource of each trap according to at least one of the trap area, trap closure, reservoir thickness, porosity, oil saturation distribution range and volume coefficient.

[0171] Based on any of the above devices, optionally, the above device further includes:

[0172] The drilling location determination module is used to determine the drilling location in the area where the reservoir is developed in the target trap after selecting the target trap in the exploration area from all the traps, according to the oil and gas enrichment control factors corresponding to the area.

[0173] The trap screening device provided by the embodiment of the present invention determines the oil and gas weight coefficient of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data of each target layer in the exploration area of ​​the to-be-screened traps through an oil and gas resource determination module, and respectively determines the oil and gas resource of each identified trap on the target layer; uses the associated layer acquisition module to use the target layer associated with the trap in at least one target layer as an associated layer for each of all the identified traps in the exploration area; uses the total resource acquisition module to obtain the total resource of the trap according to the oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resource corresponding to the traps in the at least one associated layer; and uses the trap screening module to screen the target traps of the exploration area from all the traps according to the total resource corresponding to each of all the traps. The above-mentioned device reflects the differences in initial oil and gas production and mass oil and gas production of different target layers through the oil and gas weight coefficient, and thus uses the oil and gas weight coefficient to determine the total resources, which can effectively increase the proportion of oil and gas resources in the target layers with high initial production and high cumulative production in the total resources, and then screen closures based on this, which can effectively improve the rationality and scientificity of closure screening, and thus increase the probability of obtaining high cumulative production and high initial production during drilling.

[0174] The trap screening device provided in the embodiment of the present invention can execute the trap screening method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0175] It is worth noting that in the above-mentioned embodiment of the closed screening 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 realized; 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.

[0176] Fig.11 A 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.

[0177] like Fig.11 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.

[0178] 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.

[0179] 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 closed screening method.

[0180] In some embodiments, the closure screening method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the 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 closure screening method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the closure screening method in any other appropriate manner (e.g., by means of firmware).

[0181] 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.

[0182] 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.

[0183] 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.

[0184] 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).

[0185] 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.

[0186] 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.

[0187] 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.

[0188] 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 trap screening, characterized in that: include: For each target layer in at least one target layer on the exploration area for the to-be-screened traps, determine the oil and gas weight coefficient of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer, and respectively determine the oil and gas resource volume of each identified trap on the target layer; For each of all the identified traps in the exploration area, taking a target layer associated with the trap in the at least one target layer as an associated layer; Obtaining the total resource of the trap according to the obtained oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resource corresponding to the trap on the at least one associated layer; According to the total resource volume corresponding to each of the traps in the whole traps, the target traps in the exploration area are screened out from the whole traps.

2. The method according to claim 1, characterized in that Determining the oil and gas weight coefficient of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer includes: Obtaining initial oil and gas production data and cumulative oil and gas production data of the target layer; Determine the drilling economic compliance rate of the target layer according to the initial oil and gas production data and the cumulative oil and gas production data, and determine the total cumulative production of the target layer according to the cumulative oil and gas production data; Determine a maximum cumulative yield having the largest value among the total cumulative yields respectively corresponding to the at least one target layer; The oil and gas weight coefficient of the target layer is determined according to the drilling economic compliance rate, the total cumulative production and the maximum cumulative production.

3. The method according to claim 2, characterized in that The initial oil and gas production data includes the initial production of each production well on the target layer, and the cumulative oil and gas production data includes the cumulative production of each production well. The determination of the drilling economic compliance rate of the target layer based on the initial oil and gas production data and the cumulative oil and gas production data includes: Determine the number of production wells on the target layer, as well as the economic limit daily production of a single well and the economic limit cumulative production of a single well in the exploration area; Determine, based on the initial production of each production well, a first number of production wells on the target layer whose initial production of the well is greater than the economic limit daily production of the well; Determine, based on the single-well cumulative production of each production well, a second number of production wells on the target layer whose single-well cumulative production is greater than the single-well economic limit cumulative production; determining a first ratio based on the first number and the number of wells, and determining a second ratio based on the second number and the number of wells; The drilling economic compliance rate of the target layer is determined according to the first ratio and the second ratio.

4. The method according to claim 1, characterized in that: Also includes: Determine the type of oil reservoir developed in the target layer, as well as the top surface depth domain structural map and / or reservoir thickness plane distribution map of the target layer; In the case where the trap corresponding to the reservoir type is a structural trap, identifying the structural trap on the target layer according to the top surface depth domain structural map; In the case where the trap corresponding to the oil reservoir type is a lithologic trap, identifying the lithologic trap on the target layer according to the reservoir thickness plane distribution map; In the case where the trap corresponding to the oil reservoir type is a structural-lithological trap, the structural-lithological trap on the target layer is identified based on the reservoir thickness plane distribution map and the reservoir thickness plane distribution map.

5. The method according to claim 4, characterized in that Also includes: Performing well-seismic layer calibration for the target layer, and performing seismic tracing interpretation based on the well-seismic layer calibration results, so as to compile a top surface time domain structural map of the target layer; Establishing a time-depth relationship of the exploration area for the exploration area, and compiling the top surface depth domain structural map based on the time-depth relationship of the exploration area and the top surface time domain structural map; Reservoir seismic inversion prediction is performed on the target layer to obtain a planar distribution map of the reservoir thickness.

6. The method according to claim 4, characterized in that The step of respectively determining the oil and gas resource volume of each identified trap on the target layer comprises: Drawing a trap distribution map according to each identified trap on the target layer; According to the trap distribution map, the top surface depth domain structural map and the reservoir thickness plane distribution map, the trap area, the trap closure degree and the reservoir thickness are obtained; According to the logging interpretation results of the wells drilled in the exploration area, the porosity and oil saturation distribution range of the target layer are counted; Obtaining a volume coefficient based on experimental analysis data of crude oil in the exploration area or an area adjacent to the exploration area; The oil and gas resource amount of each trap is determined according to at least one of the trap area, the trap closure, the reservoir thickness, the porosity, the oil saturation distribution range and the volume coefficient.

7. The method according to any one of claims 1 to 6, characterized in that After selecting the target trap of the exploration area from all the traps, the method further includes: For the area where the reservoir is developed in the target trap, the drilling position in the area is determined according to the oil and gas enrichment control factors corresponding to the area.

8. A closed screening device, characterized in that: include: An oil and gas resource determination module is used to determine the oil and gas weight coefficient of each target layer in at least one target layer on the exploration area to be screened for the trapped area according to the initial oil and gas production data and the cumulative oil and gas production data of the target layer, and to determine the oil and gas resource of each identified trapped area on the target layer; an associated layer obtaining module, for taking, for each of all identified traps in the exploration area, a target layer associated with the trap in the at least one target layer as an associated layer; A total resource obtaining module, used for obtaining the total resource of the trap according to the oil and gas weight coefficient corresponding to the at least one associated layer and the oil and gas resource corresponding to the trap on the at least one associated layer; The trap screening module is used to screen out the target traps in the exploration area from all the traps according to the total resource volume corresponding to each of the traps.

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 trap screening method 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 closure screening method according to any one of claims 1 to 7 when executed.

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