Randomization method and device for improving efficient acquisition noise distribution of vibroseis

Abstract

The invention discloses a method and a device for improving distribution randomization of noise efficiently acquired by a vibroseis, and the method comprises the steps: determining the range of a full frequency band according to the actual single-shot target layer response of a work area, and determining scanning signals and scanning durations of different frequency bands of multi-source efficient construction; according to a random rule, distributing a corresponding randomized excitation point operation position to each seismic source vehicle for multi-source efficient construction, and ensuring that only one seismic source vehicle can perform construction at the same excitation point position at the same moment and adjacent seismic source vehicles for scanning signals do not perform operation at the same time; carrying out a wave field influence test aiming at oscillation starting time and seismic source spacing, and optimizing the optimal oscillation starting time and spatial spacing of adjacent frequency bands of different seismic source random excitation operation positions according to a test result; disperse source efficient acquisition simulation is carried out, and random adjacent shot interference distribution characteristics and imaging effect differences are analyzed based on simulation data. According to the method, high-efficiency operation noise can present random feature distribution, and the construction efficiency and the data quality are further improved.

Description

Technical Field

[0001] The present invention belongs to the field of seismic exploration technology application, and more specifically, relates to a method and device for improving the randomization of noise distribution for efficient acquisition of a controllable vibrator. Background Art

[0002] As a seismic exploration signal excitation device, the controllable vibrator has the advantages of low construction cost, safety and environmental protection, flexible construction organization, and controllable excitation signal in oil and gas exploration.

[0003] There are two main types of commonly used technologies at present. One is conventional alternating scanning acquisition, which collects one shot after another; the other is multi-source efficient acquisition. The main problem of the former is low construction efficiency and large time consumption, but its advantage is that there is no interference from adjacent shots and harmonics; the advantage of the latter is high production efficiency and relatively low cost, but the disadvantage is serious interference from adjacent shots and harmonics. With the development of high-density acquisition, the number of shots is getting higher and higher, and high efficiency is currently the only way to reduce costs.

[0004] Therefore, the noise interference from neighboring guns caused by multi-source efficient acquisition is an important problem that must be faced. In actual production, it is necessary to develop targeted noise suppression technology to suppress the interference from neighboring guns caused by efficient acquisition. However, in reality, noise suppression technology generally achieves satisfactory results. In addition, the noise suppression processing of massive data will greatly increase the workload. Summary of the invention

[0005] The purpose of the present invention is to propose a method and device for randomizing the noise distribution to improve the efficient acquisition of controllable seismic sources. By setting the scanning signals of multiple seismic sources to be inconsistent in frequency band range, scanning time and start-up time, the noise of efficient operation presents a random characteristic distribution, which is beneficial to the suppression of subsequent high-density data direct superposition imaging noise, and further improves construction efficiency and data quality.

[0006] To achieve the above objectives, in a first aspect, the present invention proposes a method for randomizing noise distribution for improving the efficient acquisition of vibroseis sources, comprising:

[0007] Determine the range of the full frequency band based on the actual single-shot target layer response in the work area, determine the scanning signals of different frequency bands for multi-source efficient construction based on the number of independent frequency band segments and the division rules of scanning signals of different frequency bands, and determine the scanning duration of scanning signals of different frequency bands;

[0008] According to the random rules, each source vehicle of multi-source efficient construction is assigned a corresponding randomized excitation point operation position, and it is ensured that only one source vehicle can be working at the same excitation point position at the same time and adjacent scanning signal source vehicles do not operate at the same time;

[0009] Conduct tests on the impact of start-up time and source spacing on wave fields, and optimize the optimal start-up time and spatial spacing of adjacent frequency bands at different sources of random excitation operation locations based on the test results;

[0010] Carry out simulation of efficient acquisition of dispersed sources, and analyze the distribution characteristics of random adjacent gun interference and the differences in imaging effects based on simulation data.

[0011] Optionally, the division rules of the scanning signals in different frequency bands include:

[0012] The scanning signals of each independent frequency band satisfy the frequency doubling relationship of adjacent frequency bands;

[0013] The front and rear frequency bands between adjacent guns are integer multiples.

[0014] Optionally, determining the scanning duration of scanning signals of different frequency bands includes:

[0015] Different scanning time experiments were carried out using scanning signals of different frequency bands, and the scanning time-energy curve was extracted. The optimal scanning time parameters of scanning signals of different frequency bands were determined according to the data signal-to-noise ratio and resolution requirements.

[0016] Optionally, the method of allocating a corresponding randomized excitation point operation position to each source vehicle of the multi-source efficient construction according to a random rule includes:

[0017] Determine the number of all firing point locations and number all shot point stakes;

[0018] The random function is used to generate random codes for all shot point positions, and the number of random codes is determined according to the number of source vehicles;

[0019] According to the principle that no two vehicles can appear at the same position at the same time, the random coding of the excitation position of each source vehicle is optimized.

[0020] In a second aspect, the present invention provides an electronic device, the electronic device comprising:

[0021] at least one processor; and,

[0022] a memory communicatively connected to the at least one processor; wherein,

[0023] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute any of the highly controllable seismic source efficient acquisition noise distribution randomization methods described in the first aspect.

[0024] In a third aspect, the present invention proposes a non-transitory computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable a computer to execute any of the highly controllable seismic source efficient acquisition noise distribution randomization methods described in the first aspect.

[0025] In a fourth aspect, the present invention provides a device for randomizing noise distribution for improving the efficient acquisition of a vibrator, comprising:

[0026] The scanning signal design module is used to determine the range of the full frequency band according to the actual single-shot target layer response in the work area, determine the scanning signals of different frequency bands for multi-source efficient construction according to the number of independent frequency band segments and the division rules of scanning signals of different frequency bands, and determine the scanning time of scanning signals of different frequency bands;

[0027] The random excitation position design module is used to assign the corresponding randomized excitation point operation position to each source vehicle of multi-source efficient construction according to random rules, and ensure that only one source vehicle can be working at the same excitation point position at the same time and that adjacent scanning signal source vehicles do not operate at the same time;

[0028] The excitation parameter optimization module is used to carry out tests on the influence of the start-up time and the distance between seismic sources on the wave field, and optimize the optimal start-up time and spatial distance between adjacent frequency bands of random excitation operation positions of different seismic sources according to the test results;

[0029] The analysis module is used to carry out simulation of efficient acquisition of dispersed sources and analyze the distribution characteristics of random adjacent gun interference and the differences in imaging effects based on simulation data.

[0030] Optionally, the division rules of the scanning signals in different frequency bands include:

[0031] The scanning signals of each independent frequency band satisfy the frequency doubling relationship of adjacent frequency bands;

[0032] The front and rear frequency bands between adjacent guns are integer multiples.

[0033] Optionally, determining the scanning duration of scanning signals of different frequency bands includes:

[0034] Different scanning time experiments were carried out using scanning signals of different frequency bands, and the scanning time-energy curve was extracted. The optimal scanning time parameters of scanning signals of different frequency bands were determined according to the data signal-to-noise ratio and resolution requirements.

[0035] Optionally, the method of allocating a corresponding randomized excitation point operation position to each source vehicle of the multi-source efficient construction according to a random rule includes:

[0036] Determine the number of all firing point locations and number all shot point stakes;

[0037] The random function is used to generate random codes for all shot point positions, and the number of random codes is determined according to the number of source vehicles;

[0038] According to the principle that no two vehicles can appear at the same position at the same time, the random coding of the excitation position of each source vehicle is optimized.

[0039] The beneficial effects of the present invention are:

[0040] In order to solve the serious problem of interference from neighboring guns during efficient construction, the present invention proposes an efficient construction operation mode for a combination of controllable seismic sources and dispersed sources. The design of frequency-band signals and randomization of the excitation position space are adopted to make the interference from neighboring guns present a random distribution to the greatest extent, which is beneficial to the subsequent noise suppression. The results of simulation data verification show that the effect meets the requirements, which will play a great role in promoting field experimental production.

[0041] The system of the present invention has other characteristics and advantages, which will be apparent from the drawings incorporated herein and the following detailed description, or will be described in detail in the drawings incorporated herein and the following detailed description, which together serve to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which like reference numerals generally represent like components.

[0043] Figure 1 A step diagram of a method for randomizing noise distribution to improve efficient acquisition of a controllable vibrator according to the present invention is shown.

[0044] Figure 2 The figure shows the actual data of the working area and the schematic diagram of the spectrum analysis in one embodiment of the present invention.

[0045] Figure 3 A schematic diagram showing energy distribution at different scanning times in one embodiment of the present invention is shown.

[0046] Figure 4 A spectrum diagram of different frequency bands and different scanning times in one embodiment of the present invention is shown.

[0047] Figure 5 A local constraint TD rule curve diagram in one embodiment of the present invention is shown.

[0048] Figure 6 Shown are single shot records corresponding to different frequency bands before correlation in one embodiment of the present invention.

[0049] Figure 7The corresponding single shot records of different frequency bands after correlation (separation) in one embodiment of the present invention are shown.

[0050] Figure 8 A schematic diagram showing the distribution characteristics of random noise in different domains in one embodiment of the present invention.

[0051] Fig. 9 A schematic diagram showing the effect of random acquisition of non-denoising imaging profiles by a dispersed source combination in one embodiment of the present invention. DETAILED DESCRIPTION

[0052] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0053] Example 1

[0054] like Figure 1 As shown, this embodiment provides a method for randomizing noise distribution to improve the efficient acquisition of a vibrator, including:

[0055] S1: Determine the range of the full frequency band according to the actual single-shot target layer response in the work area, determine the scanning signals of different frequency bands for multi-source efficient construction according to the number of independent frequency band segments and the division rules of scanning signals of different frequency bands, and determine the scanning time of scanning signals of different frequency bands;

[0056] In this step, the division rules of the scanning signals of different frequency bands include:

[0057] The scanning signals of each independent frequency band satisfy the frequency doubling relationship of adjacent frequency bands;

[0058] The front and rear frequency bands between adjacent guns are integer multiples.

[0059] The independent signals in each frequency band satisfy the frequency doubling relationship of adjacent frequency bands, which can ensure that the harmonics of the front frequency band are the effective components of the adjacent rear frequency band, and at the same time, the harmonics and fundamental waves of the separated frequency bands are separated; the front and rear frequency bands are in an integer relationship, which can ensure that adjacent cannons are separated.

[0060] In this step, determining the scanning duration of scanning signals of different frequency bands includes:

[0061] Different scanning time experiments were carried out using scanning signals of different frequency bands, and the scanning time-energy curve was extracted. The optimal scanning time parameters of scanning signals of different frequency bands were determined according to the data signal-to-noise ratio and resolution requirements.

[0062] S2: According to the random rules, each source vehicle of multi-source efficient construction is assigned a corresponding randomized excitation point operation position, and it is ensured that only one source vehicle can be working at the same excitation point position at the same time and that adjacent scanning signal source vehicles do not operate at the same time;

[0063] In this step, the randomized excitation point operation position is assigned to each source vehicle of the multi-source efficient construction according to the random rule, including:

[0064] Determine the number of all firing point locations and number all shot point stakes;

[0065] The random function is used to generate random codes for all shot point positions, and the number of random codes is determined according to the number of source vehicles;

[0066] According to the principle that no two vehicles can appear at the same position at the same time, the random coding of the excitation position of each source vehicle is optimized.

[0067] S3: Conduct tests on the impact of start-up time and source spacing on wave fields, and optimize the optimal start-up time and spatial spacing of adjacent frequency bands at different random excitation operation locations based on the test results;

[0068] S4: Conduct simulations for efficient acquisition of dispersed sources, and analyze the distribution characteristics of random adjacent gun interference and differences in imaging effects based on simulation data.

[0069] Example 2

[0070] This embodiment provides a method for randomizing noise distribution to improve the efficient acquisition of vibroseis. By designing corresponding segmented signals for different vibroseis vehicles and determining the random excitation position of each vehicle, the dispersed source combination is efficiently acquired to maximize the randomness of neighboring gun interference. By improving the randomness of neighboring gun interference, increasing the random distribution characteristics of noise, and combining the superposition of high-density data, the neighboring gun interference is directly suppressed, thereby achieving high-precision imaging.

[0071] This method specifically comprises the following steps:

[0072] (1) Multi-source efficient construction with different scanning signal designs

[0073] The full-band range is determined based on the actual single-shot target layer response in the work area, and the scanning signals of different frequency bands are further determined based on the number of segments and division rules:

[0074] Different scanning signal division rules:

[0075] --The independent signals satisfy the frequency doubling relationship between adjacent frequency bands, which can ensure that the harmonics of the front frequency band are the effective components of the adjacent rear frequency band, and at the same time, the harmonics and fundamental waves of the separated frequency bands are separated;

[0076] --The front and rear frequency bands are in integer relationship, ensuring that adjacent guns are separated.

[0077] The scanning duration of different frequency bands is determined according to the actual exploration needs and the spectrum characteristics of the target layer combined with field tests. The determination method is to perform energy and spectrum statistics of different scanning durations for the determined different frequency band signals in the field according to multiple groups of scanning durations (t1, t2, t3, t4...), and select appropriate scanning durations for different frequency bands based on the requirements of data signal-to-noise ratio and resolution, taking into account construction costs.

[0078] (2) Design of random excitation positions of different seismic sources for multi-source efficient construction

[0079] First of all, it is necessary to ensure that all the excitation point positions are traversed by each source vehicle; then, each source vehicle is given the corresponding randomized excitation point operation position according to the random rules, but it is necessary to ensure that only one source vehicle can be working at the same excitation point position at the same time, and at the same time, the principle of minimum correlation between adjacent guns is ensured to ensure that adjacent scanning signal source vehicles cannot operate at the same time. When the spacing is small, the start-up time should be increased or the source spacing should be increased to start the vibration at the same time, so as to improve efficiency and further reduce interference from adjacent guns.

[0080] Specific random steps:

[0081] --First, determine the total number of firing point locations and number all the shot point pile numbers, such as 1, 2, 3...Ns;

[0082] --Use random functions to generate random codes for Ns shot point positions, and determine the number of random codes according to the number of source vehicles: random_1(1:Ns), random_2(1:Ns), random_3(1:Ns)...random_Nv(1:Ns), where Nv is the number of controllable vibrators working at the same time, and Ns is the number of excitation point positions;

[0083] --Based on the principle that no two cars can appear at the same time and position, the random coding of the excitation position of each car is optimized.

[0084] (3) Optimization of excitation parameters based on TD rules with local constraints

[0085] Under the excitation parameters designed above, tests on the influence of starting time and source spacing on wave fields are carried out. Based on the test results, the optimal starting time and spatial spacing of adjacent frequency bands mentioned in step (2) are further optimized. At the same time, appropriate acquisition parameters are selected to further ensure the randomness of adjacent gun interference.

[0086] (4) Analysis and demonstration of the random distribution characteristics and effects of noise based on simulated data

[0087] Indoor simulation of efficient acquisition of dispersed sources is carried out, and the distribution characteristics of random adjacent gun interference and the differences in imaging effects are analyzed based on the simulation data. The idea of ​​the present invention is verified according to the processing effect, and further field promotion and production guidance are carried out.

[0088] Example 3

[0089] This embodiment takes a certain work area in Tahe as an example to explain in detail the process and implementation method of the method for randomizing noise distribution for improving the efficient acquisition of controllable seismic sources of the present invention.

[0090] Step 1: Multi-source efficient construction of different scanning signal designs

[0091] First, based on the target layer spectrum analysis of the data collected in the previous work area, the entire frequency band range and the independent frequency band range are determined, such as Figure 2 As shown, the entire frequency band range is 5-80 Hz; the four independent frequency bands are 5-10 Hz, 10-20 Hz, 20-40 Hz, and 40-80 Hz.

[0092] By performing different scanning time experiments in different frequency bands, the scanning time-energy curve is extracted, such as Figure 3 As shown in Table 1, the optimal scanning time parameters for different frequency bands are determined according to the data signal-to-noise ratio requirements: 3s for the 5-10 Hz band, 5s for the 10-20 Hz band, 8s for the 20-40 Hz band, and 11s for the 40-80 Hz band, as shown in Table 1 and Figure 4 shown.

[0093] Table 1 Parameters of scanning signals of dispersed source combination

[0094]

[0095]

[0096] Step 2: Design of random excitation positions of different seismic sources for multi-source efficient construction

[0097] For the four independent frequency bands designed above, four seismic source vehicles are used for construction, namely V1, V2, V3 and V4. The content (2) of the present invention is used to obtain the travel paths, i.e., the excitation positions, of the four seismic source vehicles, as shown in Table 2. The serial number represents the time, in seconds. The number directly below each seismic source vehicle represents the seismic source excitation position. The number of repetitions at the same position is consistent with the respective scanning time, which means that construction is carried out at this position within its own scanning time. If the scanning time is exceeded, it will immediately move to the next position for excitation. The same is true for other seismic source vehicles.

[0098] Table 2 Random excitation positions of different scattered sources

[0099]

[0100]

[0101] Step 3: Optimization of excitation parameters based on the TD rule with local constraints

[0102] It can be seen that the adjacent frequency bands of the four frequency bands are more similar. Through further analysis, it is mainly that frequency band 1 and frequency band 2 are most similar. Therefore, it is actually considered to set local TD rules for frequency band 1 and frequency band 2 to further reduce the interference between the two. In addition to the local constraint TD rules designed according to the geological conditions of this area, see Table 3 and Figure 5 .

[0103] Table 3 Local constraint TD rules

[0104] Sliding distance / km Sliding time / s 0 7 4 6 8 3 11 0.5 20 0

[0105] (5) Step 4: Analyze and verify the random distribution characteristics and effects of noise based on simulation data

[0106] According to the four frequency bands combined with random excitation positions, a two-dimensional line simulation is carried out to simulate the relevant previous single shot data such as Figure 6 As shown, the relevant rear single shot is as follows Figure 7 As shown in Figure 2, the characteristics of random noise in different domains (common shot point domain and common receiving point domain) are as follows: Figure 8 As shown, the direct imaging section without denoising is as follows Fig. 9 shown.

[0107] Example 4

[0108] This embodiment provides a device for randomizing noise distribution for improving the efficient acquisition of a vibrator, comprising:

[0109] The scanning signal design module is used to determine the range of the full frequency band according to the actual single-shot target layer response in the work area, determine the scanning signals of different frequency bands for multi-source efficient construction according to the number of independent frequency band segments and the division rules of scanning signals of different frequency bands, and determine the scanning time of scanning signals of different frequency bands;

[0110] The random excitation position design module is used to assign the corresponding randomized excitation point operation position to each source vehicle of multi-source efficient construction according to random rules, and ensure that only one source vehicle can be working at the same excitation point position at the same time and that adjacent scanning signal source vehicles do not operate at the same time;

[0111] The excitation parameter optimization module is used to carry out tests on the influence of the start-up time and the distance between seismic sources on the wave field, and optimize the optimal start-up time and spatial distance between adjacent frequency bands of random excitation operation positions of different seismic sources according to the test results;

[0112] The analysis module is used to carry out simulation of efficient acquisition of dispersed sources and analyze the distribution characteristics of random adjacent gun interference and the differences in imaging effects based on simulation data.

[0113] In this embodiment, the division rules of the scanning signals of different frequency bands include:

[0114] The scanning signals of each independent frequency band satisfy the frequency doubling relationship of adjacent frequency bands;

[0115] The front and rear frequency bands between adjacent guns are integer multiples.

[0116] In this embodiment, determining the scanning duration of scanning signals of different frequency bands includes:

[0117] Different scanning time experiments were carried out using scanning signals of different frequency bands, and the scanning time-energy curve was extracted. The optimal scanning time parameters of scanning signals of different frequency bands were determined according to the data signal-to-noise ratio and resolution requirements.

[0118] In this embodiment, the randomized excitation point operation position is assigned to each source vehicle of the multi-source efficient construction according to the random rule, including:

[0119] Determine the number of all firing point locations and number all shot point stakes;

[0120] The random function is used to generate random codes for all shot point positions, and the number of random codes is determined according to the number of source vehicles;

[0121] According to the principle that no two vehicles can appear at the same position at the same time, the random coding of the excitation position of each source vehicle is optimized.

[0122] Example 5

[0123] This embodiment provides an electronic device, the electronic device comprising:

[0124] at least one processor; and,

[0125] a memory communicatively connected to the at least one processor; wherein,

[0126] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the highly controllable seismic source efficient acquisition noise distribution randomization method described in any one of Examples 1-3.

[0127] The electronic device according to an embodiment of the present disclosure includes a memory and a processor, and the memory is used to store non-temporary computer-readable instructions. Specifically, the memory may include one or more computer program products, and the computer program product may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may, for example, include a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may, for example, include a read-only memory (ROM), a hard disk, a flash memory, etc.

[0128] The processor may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device to perform desired functions. In one embodiment of the present disclosure, the processor is used to run the computer-readable instructions stored in the memory.

[0129] Those skilled in the art should be able to understand that in order to solve the technical problem of how to obtain a good user experience, the present embodiment may also include well-known structures such as a communication bus and an interface, and these well-known structures should also be included in the protection scope of the present disclosure.

[0130] For detailed description of this embodiment, reference may be made to the corresponding descriptions in the aforementioned embodiments, which will not be repeated here.

[0131] Example 6

[0132] This embodiment provides a non-transitory computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable a computer to execute the highly controllable seismic source efficient acquisition noise distribution randomization method described in any of Embodiments 1-3.

[0133] According to the computer-readable storage medium of the embodiment of the present disclosure, non-transitory computer-readable instructions are stored thereon. When the non-transitory computer-readable instructions are executed by a processor, all or part of the steps of the above-mentioned methods of each embodiment of the present disclosure are executed.

[0134] The above-mentioned computer-readable storage media include, but are not limited to: optical storage media (e.g., CD-ROM and DVD), magneto-optical storage media (e.g., MO), magnetic storage media (e.g., magnetic tape or mobile hard disk), media with built-in rewritable non-volatile memory (e.g., memory card) and media with built-in ROM (e.g., ROM box).

[0135] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A method for randomizing the noise distribution in high-efficiency acquisition of vibrators, characterized in that, it includes: Determine the full-frequency band range according to the actual single-shot target layer response in the work area. According to the number of independent frequency band segments and the division rules of scanning signals in different frequency bands, determine the scanning signals in different frequency bands for multi-source high-efficiency construction, and determine the scanning duration of the scanning signals in different frequency bands; Allocate the corresponding randomized excitation point operation positions to each vibrator vehicle for multi-source high-efficiency construction according to random rules, and ensure that only one vibrator vehicle can operate at the same excitation point position at the same time and adjacent scanning signal vibrator vehicles do not operate simultaneously; Carry out tests on the influence of the starting time and the source spacing wave field, and optimize the best starting time and spatial spacing of adjacent frequency bands of different source random excitation operation positions according to the test results; Carry out simulations of high-efficiency acquisition of dispersed sources, and analyze the characteristics of random adjacent shot interference distribution and imaging effect differences based on the simulation data.

2. The method for randomizing the noise distribution in high-efficiency acquisition of highly controllable vibrators according to claim 1, characterized in that, the division rules of the scanning signals in different frequency bands include: The scanning signals in each independent frequency band satisfy the octave relationship between adjacent frequency bands; The front and back frequency bands between adjacent shots are in an integer multiple relationship.

3. The method for randomizing the noise distribution in high-efficiency acquisition of highly controllable vibrators according to claim 1, characterized in that, the determination of the scanning duration of the scanning signals in different frequency bands includes: Conduct different scanning duration tests on the scanning signals in different frequency bands, extract the scanning duration-energy curve, and determine the best scanning duration parameters of the scanning signals in different frequency bands according to the requirements of data signal-to-noise ratio and resolution.

4. The method for randomizing the noise distribution in high-efficiency acquisition of highly controllable vibrators according to claim 1, characterized in that, the allocation of the corresponding randomized excitation point operation positions to each vibrator vehicle for multi-source high-efficiency construction according to random rules includes: Determine the number of all excitation point positions and number all shot point stake numbers; Use a random function to generate random codes for all shot point positions, and determine the number of random coding times according to the number of vibrator vehicles; Optimize the random coding of the excitation positions of each vibrator vehicle according to the criterion that two vehicles cannot appear at the same position at the same time.

5. An electronic device, characterized in that, the electronic device includes: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for randomizing the noise distribution in high-efficiency acquisition of highly controllable vibrators according to any one of claims 1-5.

6. A non-transitory computer-readable storage medium, characterized in that, the non-transitory computer-readable storage medium stores computer instructions for causing a computer to execute the method for randomizing the noise distribution in high-efficiency acquisition of highly controllable vibrators according to any one of claims 1-5.

7. A device for randomizing the noise distribution in high-efficiency acquisition of vibrators, characterized in that, it includes: A scanning signal design module, which is used to determine the full-frequency band range according to the response of the actual single-shot target layer in the work area, determine the scanning signals of different frequency bands for multi-source efficient construction according to the number of independent frequency band segments and the division rules of scanning signals in different frequency bands, and determine the scanning duration of scanning signals in different frequency bands; A random excitation position design module, which is used to allocate corresponding randomized excitation point operation positions to each vibrator truck for multi-source efficient construction according to random rules, and ensure that only one vibrator truck can operate at the same excitation point position at the same time and adjacent vibrator trucks for scanning signals do not operate simultaneously; An excitation parameter optimization module, which is used to conduct tests on the influence of the start-up time and the source spacing wave field, and optimize the best start-up time and spatial spacing of adjacent frequency bands for the randomized excitation operation positions of different sources according to the test results; An analysis module, which is used to conduct simulations of efficient acquisition of discrete sources, and analyze the distribution characteristics of random adjacent shot interference and the differences in imaging effects based on the simulation data.

8. The device for randomizing the noise distribution in efficient acquisition of vibrator sources according to claim 7, wherein, the division rules of the scanning signals in different frequency bands include: the scanning signals in each independent frequency band satisfy the multiple frequency relationship between adjacent frequency bands; the front and rear frequency bands between adjacent shots are in an integer multiple relationship.

9. The device for randomizing the noise distribution in efficient acquisition of vibrator sources according to claim 7, wherein, the determination of the scanning duration of the scanning signals in different frequency bands includes: conducting different scanning duration tests with scanning signals of different frequency bands, extracting the scanning duration-energy curve, and determining the best scanning duration parameters of the scanning signals in different frequency bands according to the requirements of data signal-to-noise ratio and resolution.

10. The device for randomizing the noise distribution in efficient acquisition of vibrator sources according to claim 7, wherein, the allocation of corresponding randomized excitation point operation positions to each vibrator truck for multi-source efficient construction according to random rules includes: determining the number of all excitation point positions and numbering all shot point stake numbers; using a random function to randomly encode all shot point positions, and determining the number of random encoding times according to the number of vibrator trucks; optimizing the random encoding of the excitation positions of each vibrator truck according to the criterion that two trucks cannot appear at the same position at the same time.

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