Laser-ultrasound physical model data acquisition method, device, equipment, storage medium and computer program
By using a point-contact ultrasonic probe to acquire and amplify ultrasonic data in a laser ultrasonic physical model, the problem of complex seismic wave propagation paths on complex surfaces was solved, and higher-precision experimental data acquisition was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2024-12-28
- Publication Date
- 2026-06-30
AI Technical Summary
In seismic exploration, the undulations of complex terrain lead to complex propagation paths and energy distributions of seismic waves, and existing technologies cannot obtain experimental data that truly reflects the excitation and reception of seismic waves on complex terrain.
A point-contact ultrasonic probe, including a preamplifier and an ultrasonic crystal, is used to collect and amplify ultrasonic data reflected from a laser ultrasonic physical model. The lead zirconate titanate (PZT) crystal is used for signal detection and amplification, and the probe is electromagnetically shielded by a metal shell to reduce external interference.
This improved the accuracy of seismic wave reflection data and enhanced the quality and accuracy of experimental data.
Smart Images
Figure CN122307666A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the fields of earthquake physical model experiments and laser ultrasound, and particularly to a laser ultrasound physical model data acquisition method, device, equipment, storage medium, and computer program. Background Technology
[0002] In seismic exploration, undulating terrain is one of the key focuses and challenges. Due to the unevenness of the surface, seismic waves undergo complex physical phenomena such as reflection, refraction, and scattering during propagation, making the propagation path and energy distribution of seismic waves complex and posing significant challenges to the acquisition and processing of seismic data. Currently, physical modeling, as an effective forward modeling method, provides effective technical support for the physical modeling of seismic data on undulating surfaces.
[0003] However, the challenge of ultrasonic excitation on solid undulating surfaces has long constrained the development of earthquake physics simulation technology, resulting in the inability to obtain experimental data that truly reflects the excitation and reception of complex surfaces when conducting earthquake physics model experiments. Summary of the Invention
[0004] This disclosure provides a method, apparatus, device, storage medium, and computer program for acquiring data from a laser ultrasonic physical model, in order to solve the problem of being unable to obtain experimental data that can truly reflect the excitation and reception conditions of complex surfaces.
[0005] In a first aspect, this disclosure provides a method for acquiring data from a laser ultrasound physical model, comprising: acquiring and amplifying ultrasonic data reflected in the laser ultrasound physical model based on a point-contact ultrasonic probe.
[0006] In some embodiments, the point-contact ultrasound probe includes a preamplifier and an ultrasound wafer.
[0007] In some embodiments, acquiring and amplifying ultrasonic data reflected in a laser ultrasonic physical model based on a point-contact ultrasonic probe includes: acquiring ultrasonic data based on an ultrasonic wafer; and amplifying the ultrasonic data acquired by the ultrasonic wafer based on a preamplifier.
[0008] In some embodiments, the ultrasonic wafer includes a lead zirconate titanate (PZT) wafer.
[0009] In some embodiments, ultrasonic data is generated by exciting the surface of a laser ultrasonic physical model with a laser beam.
[0010] Secondly, this disclosure provides a laser ultrasound physical model data acquisition device, including: an acquisition module for acquiring and amplifying ultrasonic data reflected in the laser ultrasound physical model based on a point-contact ultrasonic probe.
[0011] In some embodiments, the point-contact ultrasonic probe includes: an ultrasonic wafer for acquiring ultrasonic data; and a preamplifier for amplifying the ultrasonic data acquired by the ultrasonic wafer.
[0012] Thirdly, this disclosure provides a computer device including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the foregoing aspects.
[0013] Fourthly, this disclosure provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of the methods described in the above aspects.
[0014] Fifthly, this disclosure provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the methods described in the foregoing aspects.
[0015] This disclosure provides a laser ultrasonic physical model data acquisition method, device, equipment, storage medium, and computer program. By applying a point-contact ultrasonic probe to the laser ultrasonic physical model, good seismic wave reflection data is obtained, improving the accuracy of experimental data. Attached Figure Description
[0016] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings:
[0017] Figure 1 This is a diagram of a laser ultrasonic testing system that uses a pulsed laser to excite and receive signals to simulate the action of seismic waves on a physical earthquake model in the field.
[0018] Figure 2 This is a flowchart illustrating a laser ultrasound physical model data acquisition method provided in an embodiment of the present disclosure.
[0019] Figure 3 This diagram illustrates a laser-ultrasound testing system that uses a pulsed laser to excite signals and a point-contact ultrasonic probe to receive signals, simulating the action of seismic waves on a seismic physical model in the field, according to an embodiment of this disclosure.
[0020] Figure 4 This is a focused image of the laser excitation beam when the laser acts on a physical model in a laser ultrasonic testing system.
[0021] Figure 5 This is a schematic diagram of ultrasonic waves generated by a laser beam on the surface of a model.
[0022] Figure 6 This is a schematic diagram of the structure of a point-contact ultrasonic probe provided in an embodiment of this disclosure.
[0023] Figure 7This is a schematic diagram of a laser ultrasonic physical model data acquisition device provided in an embodiment of the present disclosure.
[0024] In the accompanying drawings, the same parts are referred to by the same reference numerals, and the drawings are not drawn to scale. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solutions of this disclosure, and to fully understand and implement the process of how this disclosure applies technical means to solve technical problems and achieve corresponding technical effects, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, not all embodiments. The embodiments of this disclosure and the various features within them can be combined with each other without conflict, and the resulting technical solutions are all within the protection scope of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort should fall within the protection scope of this disclosure.
[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0027] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.
[0028] To facilitate the following description, some technical terms will be explained first, as follows:
[0029] 1) Undulating surface: This refers to the topography of the Earth's surface, which is characterized by highs and lows, and unevenness. It is a common natural landform. In-depth research on this type of surface helps improve the accuracy and effectiveness of seismic exploration and provides a better understanding of underground geological structures and other information.
[0030] 2) Earthquake physical simulation (the simulation scenario can be found in [reference]) Figure 1 Forward modeling is a type of simulation method that plays an effective role in the research process. Simply put, forward modeling uses known geological models and other conditions to simulate the propagation of seismic waves, thereby predicting the possible results in seismic exploration.
[0031] In a laboratory setting, a seismic physics simulation scenario can include: an excitation source, a physical model, and an acquisition module. The physical model can be made of epoxy resin and silicone rubber to reproduce models that conform to actual geological structures or different reservoir types, in order to study the kinematic and dynamic characteristics of seismic waves in complex structures and reservoirs. The excitation source can be used to transmit signals to simulate an earthquake source, and the waves generated after the transmitted signals bombard the surface of the physical model are used to reconstruct the seismic waves. The acquisition module can be used to receive or acquire seismic wave reflection data.
[0032] Figure 1 This diagram illustrates a laser-ultrasonic testing system in existing technology that uses a pulsed laser to excite and receive signals to simulate the action of seismic waves on a seismic physical model. As mentioned above, existing technology uses a pulsed laser as the excitation source, employing high-energy pulsed lasers to bombard the surface of the physical model. The interaction between the laser and the materials in the physical model generates elastic stress waves (i.e., ultrasonic waves). These ultrasonic waves are then used to simulate seismic waves in the field, and the propagation laws of seismic waves are studied through the excitation and reception of ultrasonic signals. Figure 1 As shown, in the existing technology, pulsed lasers are used to excite and receive signals, but when conducting experiments on physical models of earthquakes on complex surfaces, it is impossible to obtain experimental data that can truly reflect the excitation and reception conditions on complex surfaces.
[0033] Example 1
[0034] Figure 2 This is a flowchart illustrating a laser ultrasound physical model data acquisition method provided in this embodiment. To address the above problems, this embodiment proposes a laser ultrasound physical model data acquisition method, which includes at least:
[0035] Step S201 involves acquiring and amplifying the ultrasonic data reflected from the laser ultrasonic physical model using a point-contact ultrasonic probe. In other words, the point-contact ultrasonic probe is applied... Figure 1 In this scenario, using a point-contact ultrasonic probe to receive ultrasonic waves from the physical model can achieve better reception, laying the foundation for experiments on reservoir physical models and laser ultrasonic acquisition experiments.
[0036] Specifically, a schematic diagram of applying a point-contact ultrasonic probe to a laser ultrasonic physical model can be shown as follows: Figure 3 As shown. Figure 3This diagram illustrates a laser-ultrasound testing system that uses a pulsed laser to excite signals and a point-contact ultrasonic probe to receive signals, simulating the action of seismic waves on a seismic physical model in the field, according to an embodiment of this disclosure.
[0037] Example 2
[0038] Based on the above embodiments, the pulsed laser excitation beam focusing pattern and the schematic diagram of the ultrasonic waves generated after the laser beam bombards the surface of the physical model can be as follows: Figure 4 , Figure 5 As shown. Figure 4 This is a focused image of the laser excitation beam when the laser acts on a physical model in a laser ultrasonic testing system. Figure 5 This is a schematic diagram of ultrasonic waves generated by a laser beam on the surface of a model.
[0039] Example 3
[0040] Based on the above embodiments, the point-contact ultrasonic probe applied to the laser ultrasonic physical model can be as follows: Figure 6 As shown. Figure 6 This is a schematic diagram of the structure of a point-contact ultrasonic probe provided in an embodiment of the present disclosure, which may include at least: a preamplifier and an ultrasonic wafer.
[0041] The ultrasonic transducer is used to acquire ultrasonic data, and the preamplifier is used to amplify the ultrasonic data acquired by the ultrasonic transducer.
[0042] For example, the ultrasound wafer may be a lead zirconate titanate (PZT) wafer.
[0043] Specifically, the point-contact ultrasonic probe employs a special structural design that effectively minimizes the contact point, ensuring excellent acoustic matching and tight contact between the probe and the PZT wafer. This tight contact reduces sound wave reflection and scattering at the interface, allowing the ultrasonic waves generated by the PZT wafer to couple more effectively into the probe's interior, thereby improving signal transmission efficiency.
[0044] Furthermore, the point-contact ultrasound probe integrates a preamplifier. When the PZT chip generates a weak electrical signal, the preamplifier amplifies it at the very beginning of signal transmission. Because the preamplifier is very close to the signal source, it amplifies the signal before it is attenuated by the transmission line or subjected to external interference, thus preserving the original information and strength of the signal to the greatest extent and effectively avoiding the impact of attenuation and interference during transmission on signal quality.
[0045] Furthermore, to reduce the impact of external electromagnetic interference on weak ultrasonic signals, point-contact ultrasonic probes can employ effective shielding measures. Specifically, the probe's outer shell is made of metal, which provides electromagnetic shielding and prevents external electromagnetic fields from interfering with the internal signal transmission lines. Simultaneously, the probe's internal circuitry incorporates anti-interference technologies such as filtering and grounding to further enhance signal stability and anti-interference capabilities.
[0046] Point-contact ultrasonic probes typically feature high sensitivity and broadband characteristics, enabling effective detection and amplification of weak signals generated by PZT wafers. High sensitivity allows the probe to detect extremely weak ultrasonic signals, while broadband characteristics ensure distortion-free amplification and transmission of signals over a wide frequency range, thus better adapting to ultrasonic signals of different frequencies and improving signal acquisition quality and accuracy.
[0047] Example 4
[0048] Figure 7 This is a schematic diagram of a laser ultrasonic physical model data acquisition device provided in an embodiment of this disclosure. Figure 7 As shown, the laser ultrasonic physical model data acquisition device 700 may include the following modules.
[0049] The acquisition module 701 is used to acquire and amplify ultrasonic data reflected in the laser ultrasonic physical model based on a point-contact ultrasonic probe.
[0050] The point-contact ultrasonic probe includes: an ultrasonic wafer for acquiring ultrasonic data; and a preamplifier for amplifying the ultrasonic data acquired by the ultrasonic wafer.
[0051] Furthermore, the ultrasound wafer can be a lead zirconate titanate (PZT) wafer.
[0052] In addition, the laser ultrasonic physical model data acquisition device 700 may also include:
[0053] Physical model 702 is used to reconstruct actual geological structures or different reservoir types.
[0054] The excitation module 703 is used to excite the surface of the physical model 702 based on a laser beam emitted from a pulsed laser. In other words, ultrasonic data is generated by the excitation of the surface of the physical model 702 by the laser beam.
[0055] Example 5
[0056] Based on the above embodiments, this embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above embodiments.
[0057] In some embodiments of this example, a computer-readable storage medium is provided, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method described in the above embodiments.
[0058] In some embodiments of this example, a computer program product is provided, including a computer program / instructions, wherein the computer program, when executed by a processor, implements the steps of the method described in the above embodiments.
[0059] The processor may include, but is not limited to, one or more processors or microprocessors. Each processor may be implemented as an Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor, or other electronic component, for executing the methods described in the above embodiments.
[0060] Computer-readable storage media can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Computer-readable storage media may include, but are not limited to, random access memory (RAM), read-only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, computer storage media (e.g., hard disk, floppy disk, solid-state drive, removable disk, CD-ROM, DVD-ROM, Blu-ray disc, etc.).
[0061] Computer-readable storage media may also store at least one computer-executable program / instruction, such as computer-readable instructions. Computer-readable storage media include, but are not limited to, volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory. Computer-readable storage media may include, for example, read-only memory (ROM), hard disk, flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device executes the computer-readable instructions stored on the computer-readable storage medium, the various methods described above can be performed.
[0062] In addition, the computer device may include (but is not limited to) a data bus, an input / output (I / O) bus, a display, and input / output devices (e.g., keyboard, mouse, speakers, etc.).
[0063] The processor can communicate with external devices via the I / O bus through wired or wireless networks.
[0064] In one embodiment, the at least one computer-executable instruction may also be compiled into or comprise a software product / computer program product, wherein one or more computer-executable instructions are executed by a processor to perform the steps of the various functions and / or methods in the embodiments described herein.
[0065] In the embodiments provided in this disclosure, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.
[0066] It should be noted that, in this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element limited by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0067] While the embodiments disclosed herein are as described above, the foregoing content is merely for the purpose of facilitating understanding of this disclosure and is not intended to limit this disclosure. Any person skilled in the art to which this disclosure pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope of this disclosure; however, the scope of patent protection of this disclosure shall still be determined by the scope defined in the appended claims.
Claims
1. A method of laser-ultrasound physical model data acquisition, the method comprising: include: The ultrasonic data reflected in the laser ultrasonic physical model are acquired and amplified using a point-contact ultrasonic probe.
2. The method of claim 1, wherein, The point-contact ultrasound probe includes a preamplifier and an ultrasound wafer.
3. The method of claim 2, wherein, The acquisition and amplification of ultrasonic data reflected in the laser ultrasonic physical model based on a point-contact ultrasonic probe includes: Based on the ultrasonic wafer, the ultrasonic data is acquired; The ultrasonic data acquired by the ultrasonic wafer is amplified by the preamplifier.
4. The method of claim 2, wherein, The ultrasonic wafer includes a lead zirconate titanate (PZT) wafer.
5. The method according to any one of claims 1 to 4, characterized in that, The ultrasonic data is generated by exciting the surface of the laser ultrasonic physical model with a laser beam.
6. A laser-ultrasound physical model data acquisition apparatus, characterized by, include: The acquisition module is used to acquire and amplify the ultrasonic data reflected in the laser ultrasonic physical model based on a point-contact ultrasonic probe.
7. The apparatus of claim 6, wherein, The point contact ultrasound probe includes: An ultrasonic transducer, used to acquire the ultrasonic data; A preamplifier is used to amplify the ultrasonic data acquired by the ultrasonic transducer.
8. A computer device comprising a memory, a processor, and a computer program stored on the memory, wherein the computer program comprises instructions that, when executed by the processor, cause the processor to perform the method of any one of claims 1-7. The processor executes the computer program to implement the steps of the method according to any one of claims 1 to 5.
9. A computer-readable storage medium having stored thereon a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 5.
10. A computer program product comprising computer programs / instructions, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 5.