CN112379408A - Single-shot data acquisition method and device for simultaneous excitation of vibroseis - Google Patents
Single-shot data acquisition method and device for simultaneous excitation of vibroseis Download PDFInfo
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- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/24—Recording seismic data
- G01V1/247—Digital recording of seismic data, e.g. in acquisition units or nodes
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/24—Recording seismic data
- G01V1/26—Reference-signal-transmitting devices, e.g. indicating moment of firing of shot
Abstract
The embodiment of the application discloses a single-shot data acquisition method and a single-shot data acquisition device for simultaneous excitation of vibroseis, wherein the method comprises the following steps: acquiring the starting and stopping frequency of a controllable seismic source scanning signal in a work area; determining an up-scanning signal and a down-scanning signal according to the start-stop frequency; when single shot data are collected, the controllable seismic source adopting the up-conversion scanning signal and the controllable seismic source adopting the down-conversion scanning signal can be simultaneously excited without time and space limitations, and aliasing data of an up-conversion scanning excitation shot point and a down-conversion scanning excitation shot point are obtained; and obtaining single shot data through data separation according to the aliasing data of the up-scanning excitation shot point and the down-scanning excitation shot point. The method improves the acquisition efficiency of the controllable seismic source.
Description
Technical Field
The invention relates to the technical field of seismic data acquisition of oil and gas fields, in particular to a single-shot data acquisition method and device for simultaneous excitation of vibroseiss.
Background
With the continuous promotion of green exploration, the controllable seismic source is gradually becoming the direction of vigorous popularization and application in future. Under the large situation of low enthusiasm of oil-gas exploration, the acquisition efficiency of the controllable seismic source is improved, the economic benefit of an acquisition project is further improved, and the method is also an important content which needs to be researched for popularizing the controllable seismic source.
The main idea of the existing domestic seismic source acquisition technology is to improve the production efficiency by reducing the time interval between the excitation of two groups of seismic sources. Firstly, the acquisition interval between two cannons is reduced to the maximum extent under the condition of not sacrificing the quality of a single cannon, and the acquisition interval cannot be reduced to zero, such as a sliding scanning technology; secondly, the acquisition time interval is reduced by increasing the excitation distances of two groups of seismic sources, and the acquisition interval can be reduced to zero, for example, the independent scanning synchronous excitation technology, but the acquisition efficiency of the two technologies is not ideal enough, and the prior art lacks a more efficient vibroseis acquisition method.
Disclosure of Invention
The invention provides a single-shot data acquisition method and a single-shot data acquisition device for simultaneous excitation of vibroseis, which aim to solve at least one technical problem in the background art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a single-shot data acquisition method for simultaneous excitation of vibroseis, the method comprising:
acquiring the starting and stopping frequency of a controllable seismic source scanning signal in a work area;
determining an up-scanning signal and a down-scanning signal according to the start-stop frequency;
when single shot data are collected, synchronously exciting by using the controllable seismic source of the up-conversion scanning signal and the controllable seismic source of the down-conversion scanning signal to obtain aliasing data of up-conversion scanning excitation shot points and down-conversion scanning excitation shot points;
and obtaining single shot data through data separation according to the aliasing data of the up-scanning excitation shot point and the down-scanning excitation shot point.
Optionally, the method for acquiring single shot data by simultaneously exciting vibroseis further includes:
all the vibroseis are averagely divided into two groups, wherein one group adopts the up-conversion scanning signal, and the other group adopts the down-conversion scanning signal.
Optionally, the start-stop frequency includes: a start frequency and an end frequency;
the determining an up-scan signal and a down-scan signal according to the start-stop frequency comprises:
generating the upsweep signal with the start frequency as a minimum frequency and the end frequency as a maximum frequency.
Optionally, the determining an up-scanning signal and a down-scanning signal according to the start-stop frequency further includes:
generating the down-scan signal with the start frequency as a minimum frequency and the end frequency as a maximum frequency.
In order to achieve the above object, according to another aspect of the present invention, there is provided a single-shot data acquisition apparatus for simultaneous excitation of vibroseis, the apparatus comprising:
the starting and stopping frequency obtaining unit is used for obtaining the starting and stopping frequency of the scanning signal of the controllable seismic source in the work area;
the scanning signal generating unit is used for determining an up-conversion scanning signal and a down-conversion scanning signal according to the start-stop frequency;
the seismic source excitation unit is used for synchronously exciting the controllable seismic source adopting the up-conversion scanning signal and the controllable seismic source adopting the down-conversion scanning signal when single-shot data are acquired, so as to obtain aliasing data of the up-conversion scanning excitation shot point and the down-conversion scanning excitation shot point;
and the single shot data generation unit is used for obtaining single shot data through data separation according to the aliasing data of the up-scanning excitation shot point and the down-scanning excitation shot point.
Optionally, the single-shot data acquisition device excited by the controllable seismic source simultaneously further includes:
and the vibroseis grouping unit is used for averagely grouping all the vibroseiss into two groups, wherein one group adopts the up-conversion scanning signal, and the other group adopts the down-conversion scanning signal.
Optionally, the start-stop frequency includes: a start frequency and an end frequency;
the seismic source excitation unit comprises:
and the frequency-increasing scanning signal generating module is used for generating the frequency-increasing scanning signal by taking the starting frequency as a minimum frequency and the ending frequency as a maximum frequency.
Optionally, the seismic source excitation unit further includes:
and the frequency reduction scanning signal generating module is used for generating the frequency reduction scanning signal by taking the starting frequency as the minimum frequency and the termination frequency as the maximum frequency.
In order to achieve the above object, according to another aspect of the present invention, there is also provided a computer device, including a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the single shot data acquisition method for simultaneous excitation of vibroseis when executing the computer program.
In order to achieve the above object, according to another aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program which, when executed in a computer processor, implements the steps in the above method for acquiring single shot data with simultaneous excitation of vibroseis.
The invention has the beneficial effects that: according to the method and the device, an up-conversion scanning signal and a down-conversion scanning signal are designed according to the start-stop frequency of a controllable seismic source scanning signal of a work area, the controllable seismic source of the up-conversion scanning signal and the controllable seismic source of the down-conversion scanning signal are synchronously excited when single shot data are collected, and because the up-conversion scanning signal and the down-conversion scanning signal are basically uncorrelated, the mutual interference of the two sets of seismic source signals is small, and the collection efficiency can be approximately improved by 1 time on the premise of not increasing collection equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 is a flow chart of a method for acquiring single shot data with simultaneous excitation of vibroseis according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a method for acquiring single shot data with simultaneous excitation of vibroseis according to a second embodiment of the present invention;
FIG. 3 is a schematic illustration of a set of vibroseis upsweep signals according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a set of vibroseis down-converted scanning signals according to an embodiment of the present invention
FIG. 5 is a schematic diagram of a single shot data acquisition device with simultaneous excitation of vibroseis according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a computer device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a first flowchart of a method for acquiring single-shot data of vibroseis simultaneous excitation according to a first embodiment of the present invention, and as shown in fig. 1, the method for acquiring single-shot data of vibroseis simultaneous excitation according to the present embodiment includes steps S1 to S4.
And step S1, acquiring the start-stop frequency of the scanning signal of the controllable seismic source in the work area.
In the embodiment of the invention, the start-stop frequency of the scanning signal of the work area can be determined according to the work area condition and the test result.
Step S2, determining an up-scan signal and a down-scan signal according to the start-stop frequency.
And step S3, when single shot data are collected, synchronously exciting by using the controllable source of the up-conversion scanning signal and the controllable source of the down-conversion scanning signal to obtain aliasing data of the up-conversion scanning excitation shot point and the down-conversion scanning excitation shot point.
In the embodiment of the invention, all the controllable seismic sources are averagely divided into two groups, wherein one group adopts the frequency increasing scanning signal, and the other group adopts the frequency decreasing scanning signal.
When the single shot data is collected, the controllable seismic sources adopting the up-conversion scanning signals and the controllable seismic sources adopting the down-conversion scanning signals can be synchronously excited, and the up-conversion scanning signals and the down-conversion scanning signals are basically uncorrelated, so that the mutual interference of the two groups of seismic sources is small, and the collection efficiency can be approximately improved by 1 time on the premise of not increasing collection equipment. In the embodiment of the invention, the data of the up-scanning excitation shot point is related to the up-scanning signal, and the data of the down-scanning excitation shot point is related to the down-scanning signal, so that the data separation is realized.
And step S4, obtaining single shot data through data separation according to the aliasing data of the up-scanning excitation shot point and the down-scanning excitation shot point.
In the embodiment of the invention, the single shot data can be obtained by processing the data of the frequency-up scanning excitation shot point and the data of the frequency-down scanning excitation shot point by adopting the existing single shot data processing method.
In one embodiment of the present invention, the start-stop frequency comprises: a start frequency and an end frequency. The determining an up-scan signal and a down-scan signal according to the start-stop frequency in step S2 includes:
generating the upsweep signal with the start frequency as a minimum frequency and the end frequency as a maximum frequency. Specifically, the scanning frequency range of the up-scan signal is from the start frequency to the end frequency, and if the start frequency of a work area is 3Hz and the end frequency is 84Hz, the up-scan signal is up-scan excited at 3-84Hz, as shown in fig. 3.
In an embodiment of the present invention, the determining an up-scan signal and a down-scan signal according to the start-stop frequency in step S2 specifically further includes:
generating the down-scan signal with the start frequency as a minimum frequency and the end frequency as a maximum frequency. Specifically, the scanning frequency range of the down-conversion scanning signal is from the start frequency to the end frequency, and if the start frequency of a work area is 3Hz and the end frequency is 84Hz, the down-conversion scanning signal is 84-3Hz, and is down-converted scanning excitation, as shown in fig. 4.
It can be seen from the above description that, in the present invention, an up-conversion scanning signal and a down-conversion scanning signal are designed according to the start-stop frequency of the scanning signal of the controllable seismic source in a work area, and the controllable seismic source using the up-conversion scanning signal and the controllable seismic source using the down-conversion scanning signal are synchronously excited when single shot data is acquired, because the up-conversion scanning signal and the down-conversion scanning signal are basically uncorrelated, the mutual interference between the two sets of seismic source signals is small, and the acquisition efficiency can be approximately improved by 1 time without increasing the acquisition equipment.
Fig. 2 is a flowchart of a method for acquiring single-shot data of vibroseis simultaneous excitation according to a second embodiment of the present invention, and as shown in fig. 2, the method for acquiring single-shot data of vibroseis simultaneous excitation according to the present embodiment includes steps S101 to S106.
And S101, obtaining the start-stop frequency of the scanning signal of the controllable seismic source of the work area.
In the embodiment of the invention, the start-stop frequency of the scanning signal of the work area can be determined according to the work area condition and the test result.
S102, designing a scanning signal according to the start-stop frequency, and performing up-conversion scanning and down-conversion scanning.
In the optional embodiment of the invention, the designed starting low frequency and the ending high frequency of the scanning signal are fixed, the frequency increasing signal adopts a frequency increasing scanning mode, and the frequency reducing signal adopts a frequency reducing scanning mode. If the start frequency of a work area is 3Hz and the end frequency is 84Hz, the frequency increasing signal is 3-84Hz frequency increasing scanning excitation (as shown in figure 3), and the frequency reducing signal is 84-3Hz frequency reducing scanning excitation (as shown in figure 4).
S103, acquiring the number of the seismic source groups, and dividing the number into two groups, wherein one group adopts up-conversion scanning and the other group adopts down-conversion scanning.
In an alternative embodiment of the invention, the invention divides the number of the seismic source groups according to the project allocation into two groups, wherein one group adopts up-conversion scanning and the other group adopts down-conversion scanning. If a certain project is equipped with 4 groups of seismic sources, 2 groups of seismic sources are excited by the up-conversion signal, and the other two groups of seismic sources are excited by the down-conversion signal, so that the characteristics of the method can be exerted, and the construction efficiency is improved to the maximum extent.
And S104, when the seismic source groups are acquired in the field, the seismic source groups with different scanning modes can be synchronously excited.
In the embodiment of the invention, during field acquisition, two groups of seismic sources with short interval are adopted, one group adopts linear frequency increasing, and the other group adopts a linear frequency decreasing mode to be excited simultaneously. Because the two scanning signals are basically uncorrelated and the mutual interference of the two groups of seismic sources is small, the acquisition efficiency can be approximately improved by 1 time on the premise of not increasing acquisition equipment.
And S105, recording the data before the correlation and correlating the data with the corresponding scanning signals.
In the embodiment of the invention, because two scanning modes exist in the field, single shot records cannot be obtained by correlation of instruments on the field, and therefore, correlated pre-data needs to be recorded. The data of the up-scan excitation shot point is related to the up-frequency signal, and the data of the down-scan excitation shot point is related to the down-frequency signal, so that the data separation is realized.
And S106, obtaining the final single shot data.
In the embodiment of the invention, the final single shot data is obtained after corresponding correlation.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
Based on the same inventive concept, the embodiment of the present invention further provides a single-shot data acquisition apparatus for simultaneous excitation of vibroseis, which can be used to implement the single-shot data acquisition method for simultaneous excitation of vibroseis described in the above embodiments, as described in the following embodiments. Because the principle of solving the problem of the single-shot data acquisition device simultaneously excited by the controllable seismic sources is similar to that of the single-shot data acquisition method simultaneously excited by the controllable seismic sources, the embodiment of the single-shot data acquisition device simultaneously excited by the controllable seismic sources can be referred to as the embodiment of the single-shot data acquisition method simultaneously excited by the controllable seismic sources, and repeated parts are not described again. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a block diagram of a single-shot data acquisition device for simultaneous excitation of vibroseis according to an embodiment of the present invention, and as shown in fig. 5, the single-shot data acquisition device for simultaneous excitation of vibroseis according to an embodiment of the present invention includes:
the starting and stopping frequency obtaining unit 1 is used for obtaining the starting and stopping frequency of a scanning signal of a controllable seismic source in a work area;
the scanning signal generating unit 2 is used for determining an up-conversion scanning signal and a down-conversion scanning signal according to the start-stop frequency;
the seismic source excitation unit 3 is used for synchronously exciting the controllable seismic source by adopting the up-conversion scanning signal and the controllable seismic source by adopting the down-conversion scanning signal when single-shot data are acquired, so as to obtain aliasing data of the up-conversion scanning excitation shot point and the down-conversion scanning excitation shot point;
and the single shot data generation unit 4 is used for obtaining single shot data through data separation according to the aliasing data of the up-scanning excitation shot point and the down-scanning excitation shot point.
In an embodiment of the present invention, the apparatus for acquiring single shot data with simultaneous excitation of vibroseis of the present invention further comprises:
and the vibroseis grouping unit is used for averagely grouping all the vibroseiss into two groups, wherein one group adopts the up-conversion scanning signal, and the other group adopts the down-conversion scanning signal.
In one embodiment of the present invention, the start-stop frequency comprises: a start frequency and a stop frequency, the source excitation unit 3 comprising: and the frequency-increasing scanning signal generating module is used for generating the frequency-increasing scanning signal by taking the starting frequency as a minimum frequency and the ending frequency as a maximum frequency.
In an embodiment of the present invention, the source excitation unit 3 further includes: and the frequency reduction scanning signal generating module is used for generating the frequency reduction scanning signal by taking the starting frequency as the minimum frequency and the termination frequency as the maximum frequency.
To achieve the above object, according to another aspect of the present application, there is also provided a computer apparatus. As shown in fig. 6, the computer device comprises a memory, a processor, a communication interface and a communication bus, wherein a computer program that can be run on the processor is stored in the memory, and the steps of the method of the above embodiment are realized when the processor executes the computer program.
The processor may be a Central Processing Unit (CPU). The Processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and units, such as the corresponding program units in the above-described method embodiments of the present invention. The processor executes various functional applications of the processor and the processing of the work data by executing the non-transitory software programs, instructions and modules stored in the memory, that is, the method in the above method embodiment is realized.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and such remote memory may be coupled to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more units are stored in the memory and when executed by the processor perform the method of the above embodiments.
The specific details of the computer device may be understood by referring to the corresponding related descriptions and effects in the above embodiments, and are not described herein again.
In order to achieve the above object, according to another aspect of the present application, there is also provided a computer-readable storage medium storing a computer program which, when executed in a computer processor, implements the steps in the above method for acquiring single shot data with simultaneous excitation of vibroseis. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A single shot data acquisition method for simultaneous excitation of vibroseis is characterized by comprising the following steps:
acquiring the starting and stopping frequency of a controllable seismic source scanning signal in a work area;
determining an up-scanning signal and a down-scanning signal according to the start-stop frequency;
when single shot data are collected, synchronously exciting by using the controllable seismic source of the up-conversion scanning signal and the controllable seismic source of the down-conversion scanning signal to obtain aliasing data of up-conversion scanning excitation shot points and down-conversion scanning excitation shot points;
and obtaining single shot data through data separation according to the aliasing data of the up-scanning excitation shot point and the down-scanning excitation shot point.
2. The method of simultaneous vibroseis excitation single shot data acquisition according to claim 1, further comprising:
all the vibroseis are averagely divided into two groups, wherein one group adopts the up-conversion scanning signal, and the other group adopts the down-conversion scanning signal.
3. The method of simultaneous vibroseis excitation single shot data acquisition according to claim 1, wherein the start-stop frequencies comprise: a start frequency and an end frequency;
the determining an up-scan signal and a down-scan signal according to the start-stop frequency comprises:
generating the upsweep signal with the start frequency as a minimum frequency and the end frequency as a maximum frequency.
4. The method of claim 3, wherein determining an upsweep signal and a downsweep signal based on the start-stop frequency further comprises:
generating the down-scan signal with the start frequency as a minimum frequency and the end frequency as a maximum frequency.
5. A single-shot data acquisition device with controllable seismic sources excited simultaneously is characterized by comprising:
the starting and stopping frequency obtaining unit is used for obtaining the starting and stopping frequency of the scanning signal of the controllable seismic source in the work area;
the scanning signal generating unit is used for determining an up-conversion scanning signal and a down-conversion scanning signal according to the start-stop frequency;
the seismic source excitation unit is used for synchronously exciting the controllable seismic source adopting the up-conversion scanning signal and the controllable seismic source adopting the down-conversion scanning signal when single-shot data are acquired, so as to obtain aliasing data of the up-conversion scanning excitation shot point and the down-conversion scanning excitation shot point;
and the single shot data generation unit is used for obtaining single shot data through data separation according to the aliasing data of the up-scanning excitation shot point and the down-scanning excitation shot point.
6. The device for acquiring single shot data from vibroseis simultaneous excitation according to claim 5, further comprising:
and the vibroseis grouping unit is used for averagely grouping all the vibroseiss into two groups, wherein one group adopts the up-conversion scanning signal, and the other group adopts the down-conversion scanning signal.
7. The vibroseis simultaneous excitation single shot data acquisition device according to claim 5, wherein the start-stop frequency comprises: a start frequency and an end frequency;
the seismic source excitation unit comprises:
and the frequency-increasing scanning signal generating module is used for generating the frequency-increasing scanning signal by taking the starting frequency as a minimum frequency and the ending frequency as a maximum frequency.
8. The device for acquiring single shot data simultaneously fired by vibroseis according to claim 7, characterized in that the source firing unit further comprises:
and the frequency reduction scanning signal generating module is used for generating the frequency reduction scanning signal by taking the starting frequency as the minimum frequency and the termination frequency as the maximum frequency.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 4 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when executed in a computer processor, implements the method of any one of claims 1 to 4.
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| CN114200544A (en) * | 2021-11-12 | 2022-03-18 | 中石化石油工程技术服务有限公司 | Vibroseis scanning efficiency evaluation method and device, electronic equipment and storage medium |
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