Method, device and equipment for improving attribute quality of two-dimensional survey line inflection point line element

Abstract

The application belongs to the technical field of seismic exploration, and specifically discloses a method, device and equipment for improving the attribute quality of a two-dimensional survey line inflection point bin, which comprises the following steps: S1, designing an observation system with different arrangement lengths and different inflection point angles; S2, measuring the dispersion of the bins at the inflection points, calculating the ratio of the number of bins within a preset range of the bin center line of the two-dimensional survey line inflection point to the total number of bins, and determining whether to improve the number of bins; S3, symmetrically encrypting the shot points at different positions of the two-dimensional survey line inflection point, and determining the position with the maximum bin number ratio as the optimal position for symmetric encryption of the shot points at the two-dimensional survey line inflection point; and S4, symmetrically encrypting the shot points at different distances at the two-dimensional survey line inflection point, and determining the optimal distance for symmetric encryption of the shot points. The application improves the attribute quality of the bins at the survey line inflection point, avoids sudden changes in the number of coverages, and guarantees the data quality. The application is suitable for two-dimensional seismic exploration operations under complex surfaces.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of seismic exploration, in particular to an analysis method, device and equipment for improving the quality of line element attributes at turning points of a two-dimensional survey line. BACKGROUND

[0002] A two-dimensional survey line is an important component of land seismic survey line types. In the exploration history of the Ordos Basin in recent decades, a total of 281,000 kilometers of two-dimensional seismic survey lines have been deployed, which have played an important role in increasing oilfield reserves. The deployment of survey lines is based on the requirements of geological tasks, so it is of great significance to ensure the construction integrity of the deployed survey lines. There are many large obstacles such as county towns, coal mines, water protection zones, forest protection zones, large villages and rivers in the Ordos Basin. When a seismic survey line passes through a large obstacle, a survey line deflection scheme is usually adopted for construction to ensure the integrity of seismic deployment.

[0003] When a two-dimensional survey line is deflected, the line elements at the turning points will inevitably be dispersed (see FIG. 1), which will affect the data quality. Figure 1 The current migration principle of a two-dimensional seismic survey line is: "the difference between the azimuth angle of the turning side and the design survey line azimuth angle is not greater than 8° (not greater than 16° in mountainous areas)". In the processing of a two-dimensional seismic straight survey line, in order to ensure the processing accuracy of seismic data, the line elements outside the range of 200m on both sides of the line element center line are usually removed. After the survey line is deflected, the line elements are seriously dispersed, and the number of line elements within the range of 200m on both sides of the line element center line at the turning points cannot meet the theoretical design requirements. The number of line elements in some survey lines will be even lower. The low number of line elements within a certain range will cause low fold (see FIG. 2), which will have a great impact on the data quality. Figure 2

[0004] The number of line elements at the turning points can be effectively improved by increasing the receiving points, but this will cause the observation system to change. The number of line elements at the turning points can also be increased by increasing the shooting points (see FIG. 3), which in turn increases the fold at the turning points (see FIG. 4). Although this can effectively improve the uniformity of the line element attributes of a two-dimensional survey line, if the shooting density is too high, the line element attributes at the turning points of the survey line will be far beyond the standard. This not only causes additional workload of seismic acquisition, but also causes inconsistent processing results due to the sudden change in the overall fold (see FIG. 5), which reduces the data quality. Figure 3 Figure 4 Figure 5 SUMMARY

[0005] The purpose of the present application is to provide an analysis method, device and equipment for improving the quality of line element attributes at turning points of a two-dimensional survey line, to improve the quality of line element attributes at the turning points of a two-dimensional survey line, to avoid sudden changes in fold, and to ensure data quality.

[0006] ​​​​The application is realized by the following technical method:

[0007] An analysis method for improving the quality of two-dimensional survey line inflection point line element attributes, comprising the following steps performed in sequence:

[0008] S1, designing different arrangement lengths and different inflection angle survey lines of observation systems;

[0009] S2, inputting SPS files according to the design scheme of different observation systems into professional seismic exploration processing software, measuring the inflection point line element dispersion, counting the coverage times and the number of line elements within the preset range of the two-dimensional survey line inflection point line element center line and all the line elements, calculating the ratio of the number of line elements within the preset range of the two-dimensional survey line inflection point line element center line to the total number of line elements, if the ratio meets the technical quality requirement, the number of line elements does not need to be improved, if the ratio does not meet the technical quality requirement, the number of line elements needs to be improved by encrypting shot points;

[0010] S3, for the observation systems designed in step S1, symmetrically encrypting shot points at different positions of the inflection points on the two-dimensional survey lines of each observation system, counting the number of line elements within the preset range of the observation system two-dimensional survey line inflection point line element center line by using professional seismic exploration processing software, calculating the number of line elements within the preset range of the two-dimensional survey line inflection point after encrypting shot points at different positions of the inflection points on the two-dimensional survey lines of each observation system and the ratio of the number of line elements to the total number of line elements of the corresponding observation system two-dimensional survey line in step S2, determining the position with the maximum ratio as the best position of symmetrically encrypting shot points at the inflection points on the observation system two-dimensional survey lines;

[0011] S4, for the observation systems designed in step S1, symmetrically encrypting shot points at different distances at the inflection points on the two-dimensional survey lines of each observation system, counting the number of line elements within the preset range of the line element center line of the inflection points on the survey lines after encrypting shot points at different distances by using professional seismic exploration processing software, calculating the number of line elements within the preset range of the two-dimensional survey line inflection point line element center line after encrypting shot points at different distances at the inflection points on the two-dimensional survey lines of each observation system and the ratio of the number of line elements to the total number of line elements of the corresponding observation system two-dimensional survey line in step S2, determining the best distance of symmetrically encrypting shot points as the distance of symmetrically encrypting shot points that meets the technical quality requirement.

[0012] As a limitation: the professional seismic exploration processing software is promax software.

[0013] As a further limitation: the preset range of the two-dimensional survey line inflection point line element center line is determined by technical indicators and the development of geological target structures.

[0014] The application also provides an analysis device for improving the quality of two-dimensional survey line inflection point line element attributes, comprising:

[0015] An observation system design module is used to design observation systems with different arrangement lengths and different deflection angle survey lines.

[0016] A line element quantity promotion judgment module inputs SPS files according to different observation system design schemes into seismic exploration professional processing software, measures line element dispersion at the inflection points, counts the coverage times and line element quantities within a preset range of the two-dimensional survey line inflection point line element center line and all the line elements, calculates the ratio of the line elements within the preset range of the two-dimensional survey line inflection point line element center line to all the line elements, if the ratio meets the technical quality requirement, the line element quantity does not need to be promoted, and if the ratio does not meet the technical quality requirement, the line element quantity needs to be promoted by encrypting shot points.

[0017] A shot point encryption position determination module determines, for the observation systems designed in the observation system design module, the best position of symmetric encryption of shot points at the inflection points on the two-dimensional survey lines of the observation systems by symmetrically encrypting shot points at different positions of the inflection points on the two-dimensional survey lines of each observation system, counting the line element quantities within the preset range of the two-dimensional survey line inflection point line element center line of each observation system after encrypting shot points at different positions of the inflection points on the two-dimensional survey lines, and calculating the ratio of the line element quantities within the preset range of the two-dimensional survey line inflection point line element center line to all the line element quantities of the corresponding observation system two-dimensional survey line in the line element quantity promotion judgment module.

[0018] A shot point encryption distance determination module determines, for the observation systems designed in the observation system design module, the best distance of symmetric encryption of shot points by symmetrically encrypting shot points at different distances at the inflection points on the two-dimensional survey lines of each observation system, counting the line element quantities within the preset range of the two-dimensional survey line inflection point line element center line after encrypting shot points at different distances on the survey lines of each observation system, and calculating the ratio of the line element quantities within the preset range of the two-dimensional survey line inflection point line element center line to all the line element quantities of the corresponding observation system two-dimensional survey line in the line element quantity promotion judgment module.

[0019] The application further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor implements the above method when executing the computer program.

[0020] Compared with the prior art, the application has the beneficial effects that:

[0021] (1) The application provides an analysis method for improving the attribute quality of a two-dimensional survey line inflection point line element, wherein an observation system of different arrangement lengths and different inflection angle survey lines is designed, the line element dispersion of the different arrangement lengths and different inflection angle survey lines and the proportion of the line element quantity in a preset range are quantitatively analyzed, the position and encryption distance of shot point encryption are determined, the line element attribute quality at the inflection point of the survey line is improved, the coverage times are prevented from being suddenly changed, and the data quality is ensured.

[0022] (2) The application also provides corresponding devices and electronic equipment, so that the method is more practical, and the electronic equipment and the readable storage medium have corresponding advantages.

[0023] The application is suitable for two-dimensional seismic exploration operations under a complex surface. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0025] Figure 1 It is a line element dispersion degree diagram when the two-dimensional survey line is inflected;

[0026] Figure 2 It is a coverage times diagram in a 200m range of a two-dimensional survey line inflection point center;

[0027] Figure 3 It is a diagram for increasing shot points to improve the line element quantity at the inflection point of the two-dimensional survey line;

[0028] Figure 4 It is a diagram for increasing shot points to improve the coverage times at the inflection point of the two-dimensional survey line;

[0029] Figure 5 It is a diagram for sudden change of coverage times caused by too high shot density;

[0030] Figure 6 It is a flowchart of the analysis method for improving the attribute quality of the two-dimensional survey line inflection point line element according to the embodiment 1 of the application;

[0031] Figure 7 It is a line element quantity txt text diagram of the observation system in step S2 of the embodiment 1 of the application;

[0032] Figure 8 It is a coverage times statistical diagram of the observation system in step S2 of the embodiment 1 of the application;

[0033] Figure 9 It is a coverage times statistical diagram of the observation system in step S2 of the embodiment 1 of the application;

[0034] Figure 10The figure shows the symmetric encryption of the shot points at the positions of 0-100m, 100-200m, 200-300m, 300-400m and 400-500m of the inflection point on each two-dimensional survey line in step S3 of the embodiment 1 of the present application;

[0035] Figure 11 The figure shows the number of times of coverage of the observation system in step S3 of the embodiment 1 of the present application;

[0036] Figure 12 The figure shows the number of line elements of the observation system in step S3 of the embodiment 1 of the present application;

[0037] Figure 13 The figure shows the effect of the number of line elements after the symmetric encryption of the shot points at the positions of 0-100m, 100-200m, 200-300m, 300-400m and 400-500m of the inflection point on the two-dimensional survey line in step S3 of the embodiment 1 of the present application;

[0038] Figure 14 The figure shows the symmetric encryption of the shot points at the positions of 0-100m, 0-200m and 0-500m of the inflection point on each two-dimensional survey line in step S4 of the embodiment 1 of the present application;

[0039] Figure 15 The figure shows the number of times of coverage of the observation system in step S4 of the embodiment 1 of the present application;

[0040] Figure 16 The figure shows the number of line elements of the observation system in step S4 of the embodiment 1 of the present application;

[0041] Figure 17 The figure shows the effect of the number of line elements after the symmetric encryption of the shot points at the positions of 0-100m, 0-200m and 0-500m of the inflection point on the two-dimensional survey line in step S4 of the embodiment 1 of the present application;

[0042] Figure 18 The figure shows the structure block diagram of the analysis device for improving the quality of the line element attribute of the inflection point of the two-dimensional survey line in the embodiment 2 of the present application;

[0043] Figure 19 The figure shows the structure block diagram of the electronic device in the embodiment 2 of the present application. DETAILED DESCRIPTION

[0044] The present application will be further described in conjunction with the embodiments. However, those skilled in the art should understand that the present application is not limited to the following embodiments, and any improvement and equivalent change made on the basis of the specific embodiments of the present application are within the scope of the claims of the present application.

[0045] Embodiment 1: An analysis method for improving the quality of the line element attribute of the inflection point of the two-dimensional survey line

[0046] An analysis method for improving the quality of two-dimensional survey line inflection point line element attributes, as shown in Figure 6 The method comprises the following steps performed in sequence:

[0047] S1. Design different arrangement lengths and different inflection angle survey lines.

[0048] S2. According to the design scheme of different observation systems, input SPS files into promax software, measure the inflection point line element discrete width, use the Crooked Line Binning and QC line element statistical module of promax software to count the coverage times and the number of line elements within 200m of the center line of the two-dimensional survey line inflection point line element of each observation system, and export the observation system line element number txt text and the observation system coverage times statistical chart, as shown in Figure 7 , and Figure 8 and Figure 9 .

[0049] In the observation system line element number txt text, the first column of data is the serial number of each common center point, the second column of data is the number of line elements within 200m of the center line of the two-dimensional survey line inflection point line element of each common center point of the observation system, and the third column of data is the number of all line elements of each common center point of the two-dimensional survey line of the observation system. The ratio of the number of line elements within 200m of the center line of the two-dimensional survey line inflection point line element of each observation system to the number of all line elements of each common center point is the proportion of the number of line elements within 200m of the center line of the two-dimensional survey line inflection point line element of each observation system. The promax software is used to measure the line element dispersion within 200m of the center line of the two-dimensional survey line inflection point line element of each observation system. The line element dispersion within 200m of the center line of the two-dimensional survey line inflection point line element and the proportion of the number of line elements within 200m of the center line of the two-dimensional survey line inflection point line element of each observation system are counted, and whether the technical requirements are met is analyzed.

[0050] The line element dispersion within 200m of the center line of the two-dimensional survey line inflection point line element of the observation system of this embodiment is shown in Table 1.

[0051] Table 1 Line element discrete width and line element number proportion within 200m of the center line of the two-dimensional survey line inflection point line element

[0052]

[0053] As shown in Table 1, the two-dimensional survey line arrangement length is 3990m, the deflection angle is 4°-8°, the line element dispersion within 200m of the inflection point line element center line is 56-82m, and the line element within 200m of the inflection point line element center line accounts for 100%; the two-dimensional survey line arrangement length is 5990m, the deflection angle is 4°-8°, the line element dispersion within 200m of the inflection point line element center line is 75-165m, and the line element within 200m of the inflection point line element center line accounts for 100%; the two-dimensional survey line arrangement length is 7190m, the deflection angle is 3°-8°, the line element dispersion within 200m of the inflection point line element center line is 110-310m, and the line element within 200m of the inflection point line element center line accounts for 87%-100%; the two-dimensional survey line arrangement length is 7990m, the deflection angle is 3°-8°, the line element dispersion within 200m of the inflection point line element center line is 120-340m, and the line element within 200m of the inflection point line element center line accounts for 86%-100%. The greater the two-dimensional survey line arrangement length and the deflection angle, the more serious the line element dispersion within 200m of the inflection point line element center line, and the smaller the proportion of the number of line elements within 200m of the inflection point line element center line of the two-dimensional survey line. If the proportion of the number of line elements within 200m of the inflection point line element center line of the two-dimensional survey line reaches the technical quality requirement, the number of line elements does not need to be improved, and if the proportion does not reach the technical quality requirement, the number of line elements needs to be improved.

[0054] S3, for the observation system designed in step S1, as shown in Figure 10 , the same number of shot points are symmetrically encrypted at the positions of 0-100m, 100-200m, 200-300m, 300-400m, and 400-500m of the inflection point on the two-dimensional survey line of each observation system, the number of line elements within 200m of the inflection point line element center line is improved, the Crooked Line Binning and QC line element statistical module of the promax software is used to count the number of line elements within 200m of the inflection point line element center line after the symmetric encryption of shot points at different positions of the inflection point on the two-dimensional survey line, an observation system coverage frequency statistical chart and an observation system line element number txt text data are derived, and the observation system coverage frequency statistical chart is as shown in Figure 11 ; the observation system line element number txt text is as shown in Figure 12 ; the number of line elements within 200m of the inflection point line element center line after the symmetric encryption of shot points at different positions of the inflection point on the two-dimensional survey line of each observation system and the ratio of the number of line elements to the number of all line elements of each common center point of the two-dimensional survey line of the corresponding observation system in step S2 are calculated, the position with the maximum ratio is determined as the best position of the symmetric encryption of shot points at the inflection point on the two-dimensional survey line of the observation system; and the line element number improvement effect chart after the symmetric encryption of shot points at the positions of 0-100m, 100-200m, 200-300m, 300-400m, and 400-500m of the inflection point on the two-dimensional survey line in the embodiment is as shown in Figure 13As shown, the position range of 0-100m of the inflection point on the two-dimensional measuring line is symmetrically encrypted, the ratio of the number of line elements is 113%, and the position range of 0-100m of the inflection point on the two-dimensional measuring line is determined as the best position for symmetric encryption of the shot point to improve the number of line elements within the range of 200m of the center line of the inflection point line element of the two-dimensional measuring line.

[0055] S4, for the observation system designed in step S1, like Figure 14 As shown, the shot points of 0-100m, 0-200m, and 0-500m of the inflection point on each two-dimensional measuring line of the observation system are symmetrically encrypted, the number of encrypted shot points is counted by using the Crooked Line Binning and QC line element statistical module of the promax software, the number of coverage times and the number of line elements within the range of 200m of the center line of the inflection point line element on the measuring line after encrypting the shot points of different distances are counted, the observation system coverage time statistical diagram and the observation system line element number txt text are derived, the observation system coverage time statistical diagram is as shown in Figure 15 As shown; the observation system line element number txt text is as shown in Figure 16 As shown, the number of line elements within the range of 200m of the center line of the inflection point line element on the two-dimensional measuring line after encrypting the shot points of different distances on the inflection point of each two-dimensional measuring line of the observation system is calculated, and the ratio of the number of line elements to the number of all line elements of each common center point of the corresponding two-dimensional measuring line of the observation system in step S2 is calculated, the distance of the shot point encryption that makes the ratio meet the technical quality requirement is determined as the best distance of the symmetric encryption of the shot point; the ratio of the number of line elements within the range of 0-100m, 0-200m, and 0-500m of the two-dimensional measuring line after the symmetric encryption of the shot point in this embodiment is as shown in Figure 17 As shown, the length of the two-dimensional measuring line is 7190m, the observation system with a deflection angle of 7° encrypts the shot points within the range of 0-100m, and the ratio of the number of line elements is more than 98.9%, which meets the technical quality requirement.

[0056] Embodiment 2: An analysis device for improving the attribute quality of the inflection point line element of a two-dimensional measuring line and electronic equipment

[0057] An analysis device for improving the attribute quality of the inflection point line element of a two-dimensional measuring line, as shown in Figure 18 The device comprises:

[0058] An observation system design module for designing observation systems of measuring lines with different arrangement lengths and different deflection angles.

[0059] The line element quantity promotion judgment module inputs the SPS file according to the design scheme of different observation systems into the seismic exploration professional processing software, measures the line element dispersion at the inflection point, counts the coverage times and the line element quantity in the preset range of the two-dimensional survey line inflection point line element center line and all, calculates the ratio of the line element quantity in the preset range of the two-dimensional survey line inflection point line element center line to the total line element quantity, if the ratio meets the technical quality requirement, the line element quantity does not need to be promoted, and if the ratio does not meet the technical quality requirement, the line element quantity needs to be promoted by encrypting the shot points;

[0060] The shot point encryption position determination module designs the symmetric encryption of the shot points at different positions of the inflection point on the two-dimensional survey line of each observation system according to the observation system designed in the observation system design module, counts the line element quantity in the preset range of the inflection point line element center line of the two-dimensional survey line of the observation system by using the seismic exploration professional processing software, calculates the line element quantity in the preset range of the inflection point line element center line of the two-dimensional survey line after the encryption of the shot points at different positions of the inflection point on the two-dimensional survey line of each observation system and the ratio of the line element quantity to the total line element quantity of the two-dimensional survey line of the corresponding observation system in the line element quantity promotion judgment module, and determines the position with the maximum ratio as the best position of the symmetric encryption of the shot points at the inflection point on the two-dimensional survey line of the observation system.

[0061] The shot point encryption distance determination module symmetrically encrypts the shot points with different distances at the inflection point on the two-dimensional survey line of each observation system according to the observation system designed in the observation system design module, counts the line element quantity in the preset range of the inflection point line element center line of the survey line after the encryption of the shot points with different distances by using the seismic exploration professional processing software, calculates the line element quantity in the preset range of the inflection point line element center line of the two-dimensional survey line after the encryption of the shot points with different distances at the inflection point on the two-dimensional survey line of each observation system and the ratio of the line element quantity to the total line element quantity of the two-dimensional survey line of the corresponding observation system in the line element quantity promotion judgment module, and determines the best distance of the symmetric encryption of the shot points as the shot point encryption distance that meets the technical quality requirement.

[0062] The embodiment also provides an electronic device, which has a structure as shown in Figure 19 The processor executes the computer program to realize the method in embodiment 1.

[0063] Embodiment 3: An analysis method for improving the attribute quality of the inflection point line element of a two-dimensional survey line

[0064] In a certain 2D of Ordos Basin, 28 sections of measuring lines were implemented, with a total length of 2700km. Due to wide deployment range and many large obstacles, 23 deflections were generated, with deflection angles varying from 3° to 8°, and line element dispersion reaching 56-340m. According to the requirements of the oilfield company, the scheme of “symmetrically encrypting 1km along the measuring line with the deflection point as the center and increasing the shot density by 1 times” was strictly implemented. The line element ratio within 200m of the deflection point center far exceeded the requirement of more than 95%, which not only caused the mutation of the coverage times, but also increased the workload of 184km of shot points. Among them, the additional acquisition cost of more than ten million yuan was increased. Through the analysis method of Example 1, the line element dispersion width and quantity ratio within 200m of the deflection point center of each deflection scheme were analyzed in detail. Finally, only the shot points of the measuring line with large arrangement and large deflection angle were encrypted by a certain distance, as shown in Table 2, which met the technical quality index requirements of the oilfield company about the deflection of the measuring line. Finally, only 12km of shot point workload was increased, 172km of shot point workload was reduced compared with the traditional shot point encryption scheme, and the cost reduction and benefit increase of seismic exploration were realized.

[0065] Table 2 Line element quantity ratio within 200m of the deflection point line element center line of a certain 2D measuring line in Ordos Basin and shot point encryption

[0066]

[0067]

Claims

1. An analysis method for improving the quality of attributes of a two-dimensional survey line inflection point line element, characterized in that, Comprise the following steps in turn: S1, design different arrangement length, different deflection angle survey line observation system; S2, according to the design scheme of different observation system, input SPS file to seismic exploration professional processing software, measure the dispersion of line element at inflection point, count the coverage times and line element quantity within the preset range of two-dimensional survey line inflection point line element center line and all, calculate the ratio of line element quantity within the preset range of two-dimensional survey line inflection point line element center line and all, if the ratio meets the technical quality requirement, the line element quantity does not need to be improved, if the ratio does not meet the technical quality requirement, the line element quantity needs to be improved by encrypting shot point; S3, for the observation system designed in step S1, the symmetry encryption design of shot point is carried out at different positions of inflection point on two-dimensional survey line of each observation system, the number of line elements within the preset range of inflection point line element center line of observation system two-dimensional survey line is counted by using seismic exploration professional processing software, the number of line elements within the preset range of inflection point line element center line of two-dimensional survey line after encrypting shot point at different positions of inflection point on two-dimensional survey line of each observation system and the ratio of the number and the total number of line elements of two-dimensional survey line of corresponding observation system in step S2 are calculated, and the position with the maximum ratio is determined as the best position of symmetry encryption of shot point at inflection point on two-dimensional survey line of observation system. S4, for the observation system designed in step S1, the symmetry encryption of shot point with different distances is carried out at inflection point on two-dimensional survey line of each observation system, the number of line elements within the preset range of inflection point line element center line on survey line after encrypting shot point with different distances of each observation system is counted by using seismic exploration professional processing software, the number of line elements within the preset range of inflection point line element center line on two-dimensional survey line after encrypting shot point with different distances at inflection point on two-dimensional survey line of each observation system and the ratio of the number and the total number of line elements of two-dimensional survey line of corresponding observation system in step S2 are calculated, and the encryption distance of shot point which makes the ratio meet the technical quality requirement is determined as the best distance of symmetry encryption of shot point.

2. The method of claim 1, wherein the method is used to improve the quality of the attributes of the corner line elements of the two-dimensional survey lines. The seismic exploration professional processing software is promax software.

3. The method of claim 1 or 2, wherein, The preset range of two-dimensional survey line inflection point line element center line is determined by technical indicators and geological target structure development situation.

4. An analysis device for improving the quality of attributes of a two-dimensional survey line inflection point line element, characterized by, Comprise: An observation system design module for designing different arrangement length, different deflection angle survey line observation system; A line element quantity improvement judgment module for inputting SPS file to seismic exploration professional processing software according to the design scheme of different observation system, measuring the dispersion of line element at inflection point, counting the coverage times and line element quantity within the preset range of two-dimensional survey line inflection point line element center line and all, calculating the ratio of line element quantity within the preset range of two-dimensional survey line inflection point line element center line and all, if the ratio meets the technical quality requirement, the line element quantity does not need to be improved, if the ratio does not meet the technical quality requirement, the line element quantity needs to be improved by encrypting shot point; The shot point encryption position determination module determines the best position of the symmetrical encryption of the shot point at the inflection point of the two-dimensional survey line of each observation system according to the observation system designed by the observation system design module, counts the number of line elements within the preset range of the line element center line of the inflection point of the two-dimensional survey line after the symmetrical encryption of the shot point at different positions of the inflection point of the two-dimensional survey line of each observation system, calculates the ratio of the number of line elements within the preset range of the line element center line of the inflection point of the two-dimensional survey line after the symmetrical encryption of the shot point at different positions of the inflection point of the two-dimensional survey line of each observation system to the total number of line elements of the two-dimensional survey line of the corresponding observation system in the line element quantity improvement judgment module, and determines the position with the maximum ratio as the best position of the symmetrical encryption of the shot point at the inflection point of the two-dimensional survey line of the observation system. The shot point encryption distance determination module determines the best distance of the symmetrical encryption of the shot point at the inflection point of the two-dimensional survey line of each observation system according to the observation system designed by the observation system design module, counts the number of line elements within the preset range of the line element center line of the inflection point of the survey line after the symmetrical encryption of the shot point at different distances of the inflection point of the two-dimensional survey line of each observation system, calculates the ratio of the number of line elements within the preset range of the line element center line of the inflection point of the two-dimensional survey line after the symmetrical encryption of the shot point at different distances of the inflection point of the two-dimensional survey line of each observation system to the total number of line elements of the two-dimensional survey line of the corresponding observation system in the line element quantity improvement judgment module, and determines the distance of the symmetrical encryption of the shot point that makes the ratio meet the technical quality requirement as the best distance of the symmetrical encryption of the shot point.

5. An electronic device, comprising: The computer program is stored in the memory and can be run on the processor, and the processor executes the computer program to realize the method in any one of claims 1-3. The computer program is stored in the memory and can be run on the processor, and the processor executes the computer program to realize the method in any one of claims 1-3.

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