Rock alternating temperature and pressure characteristic analysis method, system and equipment and storage medium

Abstract

The invention relates to the technical field of mineral analysis, and discloses a rock alternating temperature and pressure characteristic analysis method, system and equipment and a storage medium, a plurality of pressure values and a plurality of temperature values of a spherical cavity are obtained to simulate different actual environmental conditions, and a micro scanning electron microscope, an X-ray diffractometer and an X-ray fluorescence spectrometer are combined to simulate the temperature and pressure characteristics of the spherical cavity. The rock sample to be analyzed can be comprehensively tested and analyzed from multiple angles. Furthermore, the detector is used for collecting the test data set of the rock sample to be analyzed generated by the test, so that the automatic collection of the data is realized, and the test efficiency is improved. Finally, alternating temperature and pressure characteristic analysis is carried out through the data processing subsystem, and characteristic changes of the rock under different temperature and pressure conditions can be obtained. Therefore, by implementing the method, the rock sample to be analyzed is comprehensively tested and analyzed from multiple angles, the limitation that the conventional research method is single is overcome, and meanwhile, the obtained alternating temperature and pressure characteristic analysis result is more comprehensive.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral analysis, and in particular to a method, system, equipment and storage medium for analyzing the alternating temperature and pressure characteristics of rocks. Background Art

[0002] With the construction of new power systems and the large-scale application of new energy, the construction of rock projects involving alternating temperature and pressure, such as geothermal resource development and deep underground space utilization, has been accelerated. For example, in the field of air compression energy storage, the surrounding rock-support-sealing structure of the underground gas storage chamber will be subjected to the cyclic expansion load of high-pressure air for a long time during operation, accompanied by temperature changes (10℃~80℃ or a larger temperature range), that is, the surrounding rock structure of the chamber is subjected to the cyclic expansion load of alternating temperature and pressure. The surrounding rock is subjected to alternating stress for a long time, which may induce multi-scale fractures such as crack generation-connection-cracking, and then cause fatigue damage and destruction. At present, many experts and scholars at home and abroad have conducted some research on the changing characteristics of the physical and mechanical parameters of rocks after alternating temperature and pressure, but the methods adopted are relatively single or the research content is not comprehensive, the fatigue failure mechanism of rocks under alternating temperature and pressure expansion loads is not clear, and related physical model tests are rare. Summary of the invention

[0003] In view of this, the present invention provides a method, system, equipment and storage medium for analyzing the alternating temperature and pressure characteristics of rock, so as to solve the problems that the existing analysis methods are relatively single or the research content is not comprehensive, the fatigue failure mechanism of rock under the action of alternating temperature and pressure expansion load is still unclear, and related physical model tests are rare.

[0004] In a first aspect, the present invention provides a rock alternating temperature and pressure characteristic analysis method, which is used in a rock alternating temperature and pressure characteristic analysis system, wherein the analysis system comprises an equipment component device, a microscopic scanning electron microscope, an X-ray diffractometer, an X-ray fluorescence spectrometer, a detector and a data processing subsystem, and the equipment component device comprises a spherical cavity; the method comprises:

[0005] Acquire multiple pressure values ​​and multiple temperature values ​​of the spherical cavity; based on the multiple temperature values ​​and multiple pressure values, respectively use a microscopic scanning electron microscope, an X-ray diffractometer and an X-ray fluorescence spectrometer to test the rock sample to be analyzed, and use a detector to collect a test data set of the rock sample to be analyzed generated by the test, and the rock sample to be analyzed is stored in the spherical cavity; send the test data set to a data processing subsystem; based on the test data set, use the data processing subsystem to perform an alternating temperature-pressure characteristic analysis to obtain an alternating temperature-pressure characteristic analysis result of the rock sample to be analyzed.

[0006] The rock alternating temperature and pressure characteristic analysis method provided by the present invention can simulate different actual environmental conditions by obtaining multiple pressure values ​​and multiple temperature values ​​of the spherical cavity, covering a wide range of temperature and pressure, making the analysis more comprehensive and representative. Further, combined with a microscopic scanning electron microscope, an X-ray diffractometer and an X-ray fluorescence spectrometer, the rock sample to be analyzed can be comprehensively tested and analyzed from multiple angles. At the same time, advanced testing instruments can provide high-resolution images and accurate data analysis. Further, the test data set of the rock sample to be analyzed generated by the detector acquisition test is used to realize the automatic collection of data, improve the test efficiency, and reduce human errors. Finally, the alternating temperature and pressure characteristic analysis is performed through the data processing subsystem, and the characteristic changes of the rock under different temperature and pressure conditions can be obtained. Therefore, by implementing the present invention, by integrating a variety of advanced equipment and technologies such as a device component device, a microscopic scanning electron microscope, an X-ray diffractometer, an X-ray fluorescence spectrometer, a detector and a data processing subsystem, a comprehensive test and analysis of the rock sample to be analyzed from multiple angles is performed, overcoming the limitations of the single research method in the past, and making the obtained alternating temperature and pressure characteristic analysis results more comprehensive.

[0007] In an optional embodiment, the equipment component device further includes an air compression pump and a heating base; using the equipment component device to obtain multiple pressure values ​​and multiple temperature values ​​includes:

[0008] An air compression pump is used to change the air pressure in the spherical cavity and determine multiple pressure values; a heating base is used to change the temperature in the spherical cavity and determine multiple temperature values.

[0009] The rock alternating temperature and pressure characteristic analysis method provided by the present invention can provide a stable and adjustable pressure output through an air compression pump, ensuring that the pressure conditions in various actual environments can be accurately simulated during the experiment. Furthermore, a uniform heating effect can be provided through a heating base, and the temperature control accuracy is high, which can meet the requirements for studying rocks under different temperature conditions.

[0010] In an optional embodiment, based on multiple temperature values ​​and multiple pressure values, the rock sample to be analyzed is tested using a microscopic scanning electron microscope, an X-ray diffractometer, and an X-ray fluorescence spectrometer, respectively, and a detector is used to collect a test data set of the rock sample to be analyzed generated by the test, including:

[0011] Based on multiple temperature values ​​and multiple pressure values, a microscopic scanning electron microscope is used to emit a focused high-energy electron beam to the rock sample to be analyzed, so that the rock sample to be analyzed is excited to generate multiple physical information under the irradiation of the high-energy electron beam; based on multiple temperature values ​​and multiple pressure values, an X-ray diffractometer is used to perform an X-ray diffraction test on the rock sample to be analyzed, so that the rock sample to be analyzed diffracts to generate multiple X-ray diffraction signals; based on multiple temperature values ​​and multiple pressure values, an X-ray fluorescence spectrometer is used to perform an X-ray fluorescence experiment on the rock sample to be analyzed, so that the rock sample to be analyzed diffracts to generate multiple X-ray fluorescence characteristic information; and a detector is used to respectively collect multiple physical information, multiple X-ray diffraction signals and multiple X-ray fluorescence characteristic information to form a test data set.

[0012] The rock alternating temperature and pressure characteristic analysis method provided by the present invention can stimulate the generation of multiple physical information by using a microscopic scanning electron microscope to emit a focused high-energy electron beam to the rock sample to be analyzed at different temperature values ​​and pressure values, thereby providing support for a comprehensive understanding of the microscopic morphological changes of the rock sample under alternating temperature and pressure conditions. Further, X-ray diffraction test is carried out at multiple temperature values ​​and pressure values, so that the rock sample to be analyzed diffracts to produce multiple X-ray diffraction signals, which can provide support for the subsequent accurate determination of the mineral composition and crystal structure of the rock sample. Further, X-ray fluorescence experimental test is carried out using an X-ray fluorescence spectrometer, so that the rock sample to be analyzed diffracts to produce multiple X-ray fluorescence characteristic information, which can provide support for the subsequent accurate determination of the content of various elements in the rock sample. Finally, various test signals can be recorded quickly and accurately through the detector to ensure the integrity and reliability of the data, providing a basis for subsequent comprehensive analysis.

[0013] In an optional implementation, based on the test data set, the data processing subsystem is used to perform an alternating temperature and pressure characteristic analysis to obtain an alternating temperature and pressure characteristic analysis result of the rock sample to be analyzed, including:

[0014] Based on multiple physical information in the test data set, the data processing subsystem is used to analyze the rock microstructure characteristics to obtain the microstructure characteristic information set of the rock sample to be analyzed; based on multiple X-ray diffraction signals in the test data set, the data processing subsystem is used to analyze the rock phase characteristics to obtain the phase characteristic information set of the rock sample to be analyzed; based on multiple X-ray fluorescence characteristic information in the test data set, the data processing subsystem is used to analyze the rock mineral element content to obtain the mineral element information set of the rock sample to be analyzed; based on the microstructure characteristic information set, the phase characteristic information set and the mineral element information set, the alternating temperature and pressure characteristic analysis results of the rock sample to be analyzed are determined.

[0015] The rock alternating temperature and pressure characteristic analysis method provided by the present invention can understand in detail the microscopic morphological changes of rocks under alternating temperature and pressure conditions and determine the corresponding microstructural characteristic information set by using multiple physical information to analyze the rock microstructure characteristics. Furthermore, by using multiple X-ray diffraction signals to analyze the physical phase characteristics of rocks, the composition, content and crystal structure of different mineral phases in the rock can be accurately determined, and the changes of the physical phases under alternating temperature and pressure can be analyzed. Further, by using multiple X-ray fluorescence characteristic information to analyze the element content of rock minerals, the content of various elements in the rock can be accurately determined. Therefore, by implementing the present invention, the information at the three levels of micro, physical phase and element can be combined with each other, which can more deeply understand the behavior and change mechanism of rocks under alternating temperature and pressure, and then the alternating temperature and pressure characteristic analysis results of the rock sample to be analyzed can be comprehensively and comprehensively determined.

[0016] In an optional embodiment, based on multiple X-ray fluorescence feature information in the test data set, the data processing subsystem is used to analyze the rock mineral element content to obtain a mineral element information set of the rock sample to be analyzed, including:

[0017] Determine multiple X-ray fluorescence wavelength information and multiple X-ray fluorescence intensity information based on multiple X-ray fluorescence characteristic information; determine multiple mineral element information based on multiple X-ray fluorescence wavelength information; determine multiple mineral element content information based on multiple X-ray fluorescence intensity information; determine a mineral element information set based on multiple mineral element information and multiple mineral element content information.

[0018] The rock alternating temperature and pressure characteristic analysis method provided by the present invention can accurately identify the types of mineral elements in rock samples by utilizing the characteristic that the X-ray fluorescence wavelength of different elements depends only on the energy level difference of the atomic electron layer of each element. Furthermore, by utilizing the correlation between the X-ray fluorescence intensity and the element content, the content of each mineral element in the rock can be quantitatively analyzed more accurately. Finally, by integrating the element type and content information, a comprehensive and systematic rock mineral element information collection can be obtained, which is convenient for further analysis and application.

[0019] In the second aspect, the present invention provides a rock alternating temperature and pressure characteristics analysis system, which is used to execute the rock alternating temperature and pressure characteristics analysis method of the first aspect or any corresponding embodiment thereof; the system comprises: an equipment component device, a microscopic scanning electron microscope, an X-ray diffractometer, an X-ray fluorescence spectrometer, a detector and a data processing subsystem, and the equipment component device comprises a spherical cavity, an air compression pump and a heating base.

[0020] The rock alternating temperature and pressure characteristics analysis system provided by the present invention can realize a comprehensive analysis of the rock alternating temperature and pressure characteristics by integrating multiple devices such as equipment component devices, microscopic scanning electron microscopes, X-ray diffractometers, X-ray fluorescence spectrometers, detectors and data processing subsystems.

[0021] In an optional embodiment, the equipment component device also includes a conveying device; a sample table is arranged in the spherical cavity, and a heating base is arranged on the top of the sample table; the conveying device is used to input the rock sample to be analyzed into the spherical cavity, so that the spherical cavity is placed on the top of the heating base.

[0022] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the rock alternating temperature and pressure characteristics analysis method of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0023] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the rock alternating temperature and pressure characteristics analysis method of the first aspect or any corresponding embodiment thereof.

[0024] In a fifth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the rock alternating temperature and pressure characteristics analysis method of the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a structural block diagram of a rock alternating temperature and pressure characteristic analysis system according to an embodiment of the present invention;

[0027] Figure 2 is a schematic flow chart of a method for analyzing rock alternating temperature and pressure characteristics according to an embodiment of the present invention;

[0028] Figure 3 is a schematic flow chart of another rock alternating temperature and pressure characteristic analysis method according to an embodiment of the present invention;

[0029] Figure 4 is a schematic flow chart of another rock alternating temperature and pressure characteristic analysis method according to an embodiment of the present invention;

[0030] Figure 5 is a schematic structural diagram of a multifunctional system for analyzing rock properties by alternating temperature and pressure according to an embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] The embodiment of the present invention provides a method for analyzing the alternating temperature and pressure characteristics of rocks. By integrating a variety of advanced equipment and technologies such as equipment components, a microscopic scanning electron microscope, an X-ray diffractometer, an X-ray fluorescence spectrometer, a detector and a data processing subsystem, the rock samples to be analyzed are comprehensively tested and analyzed from multiple angles, overcoming the limitations of the previous single research method and making the obtained alternating temperature and pressure characteristics analysis results more comprehensive.

[0034] According to an embodiment of the present invention, an embodiment of a method for analyzing the alternating temperature and pressure characteristics of rocks is provided. It should be noted that the steps shown in the flowchart of 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 can be executed in an order different from that shown here.

[0035] In this embodiment, a rock alternating temperature and pressure characteristic analysis method is provided for Figure 1 The rock alternating temperature and pressure characteristic analysis system 1 shown in the figure includes an equipment component device 11, a microscopic scanning electron microscope 12, an X-ray diffractometer 13, an X-ray fluorescence spectrometer 14, a detector 15 and a data processing subsystem 16. Further, the equipment component device 11 includes a spherical cavity 111.

[0036] Figure 2 FIG. 1 is a flow chart of a method for analyzing rock alternating temperature and pressure characteristics according to an embodiment of the present invention. Figure 2 As shown, the process includes the following steps:

[0037] Step S201, obtaining multiple pressure values ​​and multiple temperature values ​​of the spherical cavity.

[0038] Specifically, the multiple pressure values ​​represent different pressure levels in the spherical cavity 111, which can reflect the change of air pressure in the spherical cavity 111, and can provide support for simulating the pressure conditions that rocks are subjected to in different environments. For example, a higher pressure value may correspond to the huge pressure on deep underground rocks, while a lower pressure value can simulate the pressure environment of shallow rocks or near the surface.

[0039] Furthermore, the multiple temperature values ​​represent different temperature levels in the spherical cavity 111, which can reflect the temperature changes in the spherical cavity 111, and can further simulate the temperature conditions experienced by rocks in different natural environments or geological processes. For example, a high temperature value can represent the temperature environment of rocks in geothermal activity areas or near volcanoes, while a low temperature value may correspond to the temperature conditions in cold areas or deep underground.

[0040] Furthermore, by obtaining multiple pressure values ​​and multiple temperature values ​​of the spherical cavity, different actual environmental conditions can be simulated, covering a wide range of temperature and pressure, making the analysis more comprehensive and representative.

[0041] Step S202, based on multiple temperature values ​​and multiple pressure values, the rock sample to be analyzed is tested using a microscopic scanning electron microscope, an X-ray diffractometer and an X-ray fluorescence spectrometer respectively, and a detector is used to collect a test data set of the rock sample to be analyzed generated by the test.

[0042] The rock samples to be analyzed are stored in the spherical cavity 111 ( Figure 1 not shown).

[0043] Scanning Electron Microscope (SEM) refers to a high-resolution electron microscope used to observe and analyze microstructures. It works mainly in the following way: the sample surface is scanned with a focused electron beam, and the electron beam interacts with the sample to generate various signals, such as secondary electrons, backscattered electrons, X-rays, etc. The detector collects these signals and converts them into images, thus presenting the microscopic morphology, structure and composition information of the sample surface.

[0044] X-ray diffraction (XRD) refers to an instrument that uses X-rays to perform structural analysis on crystalline materials.

[0045] X-ray fluorescence spectrometer (XRF) refers to an analytical instrument that uses X-rays to excite samples and measures the fluorescent X-rays produced by elements in the samples to determine the type and content of the elements.

[0046] Specifically, a plurality of different temperature values ​​and pressure values ​​are used to simulate various actual geological environment conditions.

[0047] Furthermore, in an alternating temperature and pressure environment with different temperature and pressure values, the rock samples to be analyzed are tested using a microscopic scanning electron microscope 12, an X-ray diffractometer 13 and an X-ray fluorescence spectrometer 14 respectively, so that a comprehensive analysis of the rock samples to be analyzed can be performed from multiple angles.

[0048] Furthermore, during the test process, the detector 15 can be used to collect corresponding test data and form a test data set of the rock sample to be analyzed, providing a rich data basis for subsequent further analysis and research.

[0049] Step S203: sending the test data set to the data processing subsystem.

[0050] Specifically, after the test of the rock sample is completed and the detector collects and forms a test data set, the obtained test data set can be sent to the data processing subsystem 16 through the data transmission channel.

[0051] Among them, data transmission can be carried out by wired or wireless connection to ensure stable and accurate data transmission.

[0052] Furthermore, in an optional implementation, during the transmission process, the data may be encrypted and verified to prevent data loss or tampering.

[0053] Step S204, based on the test data set, the data processing subsystem is used to perform an alternating temperature and pressure characteristic analysis to obtain an alternating temperature and pressure characteristic analysis result of the rock sample to be analyzed.

[0054] Specifically, after the data processing subsystem 16 receives the test data set sent by the detector 15, it can analyze the characteristic changes of the rock sample to be analyzed under different temperature and pressure conditions based on the test data set and obtain the corresponding alternating temperature and pressure characteristic analysis results.

[0055] The rock alternating temperature and pressure characteristic analysis method provided in this embodiment can simulate different actual environmental conditions by obtaining multiple pressure values ​​and multiple temperature values ​​of the spherical cavity, covering a wide range of temperature and pressure, making the analysis more comprehensive and representative. Further, combined with a microscopic scanning electron microscope, an X-ray diffractometer and an X-ray fluorescence spectrometer, the rock samples to be analyzed can be comprehensively tested and analyzed from multiple angles. At the same time, advanced testing instruments can provide high-resolution images and accurate data analysis. Further, the test data set of the rock sample to be analyzed generated by the detector acquisition test is used to realize the automatic collection of data, improve the test efficiency, and reduce human errors. Finally, the alternating temperature and pressure characteristic analysis is performed through the data processing subsystem, and the characteristic changes of the rock under different temperature and pressure conditions can be obtained. Therefore, by implementing the present invention, by integrating a variety of advanced equipment and technologies such as a device component device, a microscopic scanning electron microscope, an X-ray diffractometer, an X-ray fluorescence spectrometer, a detector and a data processing subsystem, a comprehensive test and analysis of the rock sample to be analyzed from multiple angles is performed, overcoming the limitations of the single research method in the past, and making the obtained alternating temperature and pressure characteristic analysis results more comprehensive.

[0056] In this embodiment, a rock alternating temperature and pressure characteristic analysis method is provided for Figure 1 The rock alternating temperature and pressure characteristic analysis system 1 shown in the figure includes an equipment component device 11, a microscopic scanning electron microscope 12, an X-ray diffractometer 13, an X-ray fluorescence spectrometer 14, a detector 15 and a data processing subsystem 16. Further, the equipment component device 11 includes a spherical cavity 111, an air compression pump 112 and a heating base 113. Figure 1 As shown, the air compression pump 112 is connected to the spherical cavity 111 .

[0057] Figure 3 FIG. 1 is a flow chart of a method for analyzing rock alternating temperature and pressure characteristics according to an embodiment of the present invention. Figure 3 As shown, the process includes the following steps:

[0058] Step S301, obtaining multiple pressure values ​​and multiple temperature values ​​of the spherical cavity.

[0059] Specifically, the above step S301 includes:

[0060] Step S3011, using an air compression pump to change the air pressure in the spherical cavity and determine multiple pressure values.

[0061] Specifically, the power supply of the air compression pump 112 can be turned on to put it in an operable state, and the relevant pressure monitoring instruments (such as pressure gauges) can be checked to ensure that they can display the pressure value normally.

[0062] Furthermore, before the air in the spherical cavity 111 is compressed, the initial air pressure value in the spherical cavity 111 is recorded, which can be used as a reference for subsequent pressure change comparisons. Generally, it can be directly read and recorded by a high-precision pressure gauge connected to the cavity.

[0063] Furthermore, the pressure of the air delivered to the spherical cavity 111 is slowly increased by adjusting the pressure adjustment knob or control device on the air compression pump 112. In the process of increasing the pressure, it is necessary to pay close attention to the value change of the pressure gauge and gradually increase the air pressure in the spherical cavity with a small pressure increment (for example, increasing by 0.1 MPa each time, etc., and the specific increment can be determined according to actual needs and equipment accuracy).

[0064] Furthermore, each time a set pressure value increment is reached, the pressure increase operation is paused and a period of time (such as a few seconds to tens of seconds to ensure pressure stability) is waited to allow the air pressure in the spherical cavity 111 to stabilize at the set value, and then the pressure value at this time is recorded, which is a determined pressure value.

[0065] Furthermore, if the research needs to simulate the pressure reduction, after the pressure increase is completed and a series of pressure values ​​are recorded, the air in the spherical cavity 111 can be slowly released by adjusting the relevant control device of the air compression pump 112 to gradually reduce the pressure. Similarly, the operation is performed with a certain pressure reduction (such as reducing by 0.1MPa each time), and each time a new pressure value is reached, wait for the pressure to stabilize and then record it.

[0066] Furthermore, the above pressure increasing and / or decreasing operation process may be repeated multiple times to obtain multiple more accurate and representative pressure values.

[0067] Step S3012: using the heating base to change the temperature in the spherical cavity and determine a plurality of temperature values.

[0068] Specifically, the heating base 113 can be installed at a suitable position of the spherical cavity 111 and in close contact with the spherical cavity 111, which can ensure that heat can be effectively transferred into the cavity.

[0069] Further, the heating base 113 is equipped with a temperature control device ( Figure 1 not shown).

[0070] Furthermore, the temperature control device can set the heating rate and target temperature. For example, the heating rate is set to 10° C. every 5 minutes. When the heating base 113 is started, the temperature control device starts to heat the spherical cavity at the set rate.

[0071] Furthermore, the temperature control device can monitor the temperature in the spherical cavity 111 in real time, and the temperature gradually rises as the heating progresses. Furthermore, since the temperature control device can automatically adjust the heating power according to the information fed back by the temperature sensor to maintain the temperature near the set value, that is, when the first target temperature (such as 50° C.) is reached, the heating base 113 will maintain a stable temperature under the regulation of the temperature control device.

[0072] Further, wait for a period of time (such as 10-15 minutes) to allow the temperature in the spherical cavity 111 to be fully uniform, and then record the stable temperature value, that is, the determined first temperature value.

[0073] Further, a higher target temperature (such as 70°C) is set by the temperature control device, and the heating base 113 is heated again according to the set heating rate. Similarly, when the target temperature is reached, after a temperature stabilization period, this temperature value is recorded. By repeating this operation, multiple different temperature values ​​can be determined.

[0074] Furthermore, a temperature reduction program can be set by the temperature control device, for example, by reducing the heating power or starting the cooling device (if any), so that the temperature in the spherical cavity 111 decreases at a certain rate.

[0075] Further, when the temperature drops to the target temperature (such as 40° C.), the temperature control device controls the heating base 113 to stabilize the temperature at this value. After the temperature uniformity period, this temperature value is recorded and the temperature values ​​in other cooling processes are determined in this way.

[0076] Step S302, based on multiple temperature values ​​and multiple pressure values, the rock sample to be analyzed is tested using a microscopic scanning electron microscope, an X-ray diffractometer and an X-ray fluorescence spectrometer respectively, and a detector is used to collect a test data set of the rock sample to be analyzed generated by the test.

[0077] Specifically, the above step S302 includes:

[0078] Step S3021, based on multiple temperature values ​​and multiple pressure values, a microscopic scanning electron microscope is used to emit a focused high-energy electron beam to the rock sample to be analyzed, so that the rock sample to be analyzed is excited to generate multiple physical information under the irradiation of the high-energy electron beam.

[0079] Among them, the microscopic scanning electron microscope 12 can observe the microscopic physical information of rocks, such as the mineral particles, crystal structure, microcracks, micropores and other fine structures of the rocks.

[0080] Furthermore, in this embodiment, the resolution of the microscopic scanning electron microscope 12 can reach 1 nm; the magnification can reach 300,000 times and above and can be continuously adjusted; and the depth of field, the field of view, and the three-dimensional imaging effect are good.

[0081] Specifically, based on scanning electron microscopy experiments, the damage mechanism of rock microstructures under different temperature and pressure effects can be studied, and the initiation, propagation and connectivity of cracks can be observed.

[0082] First, the rock sample to be analyzed is placed in a spherical cavity 111 with set specific temperature and pressure values, and the microscopic scanning electron microscope 12 is preheated, calibrated and other routine preparations are performed to ensure that the instrument is in the best working condition, can accurately emit a focused high-energy electron beam and can effectively collect various signals generated subsequently.

[0083] Secondly, a focused high-energy electron beam can be emitted through the electron gun and other components of the microscopic scanning electron microscope 12. According to the set parameters, the energy, beam spot size, scanning speed and other indicators of the electron beam are precisely controlled so that the electron beam can be accurately irradiated to the surface of the rock sample to be analyzed placed in a specific temperature and pressure environment.

[0084] Finally, when a high-energy electron beam irradiates the surface of a rock sample, the electron beam interacts with the atoms, molecules, etc. in the sample, and stimulates the generation of a variety of physical information.

[0085] Step S3022: Based on the multiple temperature values ​​and the multiple pressure values, an X-ray diffractometer is used to perform an X-ray diffraction test on the rock sample to be analyzed, so that the rock sample to be analyzed diffracts to generate multiple X-ray diffraction signals.

[0086] Among them, the X-ray diffractometer 13 can use the diffraction principle to accurately determine the crystal structure of the material for phase qualitative and quantitative analysis. For crystalline materials, when the crystal to be tested is at different angles with the incident beam, those crystal planes that satisfy Bragg diffraction will be detected, which is reflected in the XRD spectrum as diffraction peaks with different diffraction intensities. For amorphous materials, since their structure does not have the long-range order of atomic arrangement in the crystal structure, but only has short-range order within a few atomic ranges, the XRD spectrum of amorphous materials is some diffuse scattering bun peaks. An X-ray diffractometer is used to test rock minerals at a certain incident angle at standard temperature, and the test results are compared with the mineral spectrum at the corresponding incident angle at a known standard temperature to determine the main mineral component composition of the rock. Then the orthogonal test principle is used to test the mineral XRF spectrum at different temperatures and pressures, and the difference in diffraction spectrum of the same mineral at different temperatures and pressures is analyzed to further analyze the impact of temperature and pressure changes on the mineral.

[0087] Furthermore, the diffraction angle of minerals is mainly affected by the interplanar spacing of the crystal lattice. Under the action of temperature, the unit cell of rock minerals expands, and the interplanar spacing of the crystal lattice changes, causing the diffraction angle to change. The diffraction intensity is mainly affected by the position and type of atoms in the crystal lattice, and the temperature factor also needs to be considered. Under thermal vibration conditions, the periodicity of the crystal will be destroyed to a certain extent, resulting in some additional phase differences, resulting in incomplete constructive interference under Bragg conditions and changes in the diffraction intensity. In addition, high temperature will produce thermal diffuse scattering, causing the background of X-ray diffraction to change, resulting in changes in the diffraction intensity.

[0088] Specifically, each mineral has its own specific X-ray diffraction pattern, and the content of a certain mineral in a sample is positively correlated with its diffraction peak and intensity. In a mixture, the diffraction pattern of one material component has nothing to do with the presence or absence of other material components. This is the basis for X-ray diffraction to perform phase quantitative analysis. X-ray diffraction is the "fingerprint" of crystals. Different substances have different X-ray diffraction characteristic peaks (lattice type, unit cell size, number and position of atoms or molecules in the unit cell, etc.). Different structural parameters will result in different positions and intensities of X-ray diffraction lines. Therefore, different mineral components can be distinguished by comparing the positions and intensities of X-ray diffraction lines. Therefore, based on X-ray diffraction experiments, it is possible to study the changing characteristics of rock phase characteristics with temperature and pressure.

[0089] Furthermore, the temperature and pressure values ​​are adjusted continuously to repeat the X-ray diffraction test so that the rock sample to be analyzed can diffract and generate multiple X-ray diffraction signals.

[0090] Step S3023, based on multiple temperature values ​​and multiple pressure values, an X-ray fluorescence spectrometer is used to perform an X-ray fluorescence experimental test on the rock sample to be analyzed, so that the rock sample to be analyzed diffracts to generate multiple X-ray fluorescence characteristic information.

[0091] The X-ray fluorescence characteristic information may include X-ray fluorescence wavelength information and X-ray fluorescence intensity information.

[0092] Furthermore, when X-rays are irradiated on materials, in addition to diffraction, scattering and absorption, secondary X-rays, namely X-ray fluorescence, are also generated, and the wavelength of which depends only on the energy level difference of the electron layers of the atoms of each element. Therefore, the elements contained in the material can be determined by the wavelength of X-ray fluorescence, and the content of the element can be determined by its intensity.

[0093] Furthermore, based on X-ray fluorescence tests, quantitative analysis can be performed on the changes in the content of major mineral elements in rock samples after they have been subjected to different temperatures and pressures.

[0094] Specifically, the X-ray fluorescence spectrometer 14 is started to generate X-rays of a specific energy and irradiate the rock sample to be analyzed.

[0095] Secondly, as X-rays interact with atoms in the rock sample to be analyzed, they can stimulate the production of secondary X-rays, namely X-ray fluorescence.

[0096] Furthermore, the temperature and pressure values ​​are adjusted continuously to repeat the X-ray fluorescence experimental test, so that the diffraction of the rock sample to be analyzed produces multiple X-ray fluorescence characteristic information.

[0097] Step S3024: Utilize the detector to respectively collect multiple physical information, multiple X-ray diffraction signals, and multiple X-ray fluorescence characteristic information to form a test data set.

[0098] Specifically, during the experimental testing of the rock samples to be analyzed using the microscopic scanning electron microscope 12, the X-ray diffractometer 13, and the X-ray fluorescence spectrometer 14, the detector 15 can be used to collect multiple physical information, multiple X-ray diffraction signals, and multiple X-ray fluorescence characteristic information generated by the corresponding tests and form a test data set.

[0099] Step S303: Send the test data set to the data processing subsystem. Figure 2 Step S203 of the illustrated embodiment will not be described in detail here.

[0100] Step S304: Based on the test data set, the data processing subsystem is used to perform an alternating temperature and pressure characteristic analysis to obtain the alternating temperature and pressure characteristic analysis results of the rock sample to be analyzed. Figure 2 Step S204 of the illustrated embodiment will not be described in detail here.

[0101] The rock alternating temperature and pressure characteristic analysis method provided in this embodiment can provide a stable and adjustable pressure output through an air compression pump, ensuring that the pressure conditions in various actual environments can be accurately simulated during the experiment. Further, a uniform heating effect can be provided by a heating base, and the temperature control accuracy is high, which can meet the requirements for studying rocks under different temperature conditions. Further, by using a microscopic scanning electron microscope to emit a focused high-energy electron beam to the rock sample to be analyzed at different temperature values ​​and pressure values, multiple physical information can be stimulated to generate, thereby providing support for a comprehensive understanding of the microscopic morphological changes of the rock sample under alternating temperature and pressure conditions. Further, X-ray diffraction test tests are performed at multiple temperature values ​​and pressure values, so that the rock sample to be analyzed diffracts to generate multiple X-ray diffraction signals, which can provide support for the subsequent accurate determination of the mineral composition and crystal structure of the rock sample. Further, an X-ray fluorescence experimental test is performed using an X-ray fluorescence spectrometer, so that the rock sample to be analyzed diffracts to generate multiple X-ray fluorescence characteristic information, which can provide support for the subsequent accurate determination of the content of various elements in the rock sample. Finally, the detector can quickly and accurately record various test signals to ensure the integrity and reliability of the data, providing a basis for subsequent comprehensive analysis.

[0102] In this embodiment, a rock alternating temperature and pressure characteristic analysis method is provided for Figure 1 The rock alternating temperature and pressure characteristic analysis system 1 shown in the figure includes an equipment component device 11, a microscopic scanning electron microscope 12, an X-ray diffractometer 13, an X-ray fluorescence spectrometer 14, a detector 15 and a data processing subsystem 16. Further, the equipment component device 11 includes a spherical cavity 111.

[0103] Figure 4 FIG. 1 is a flow chart of a method for analyzing rock alternating temperature and pressure characteristics according to an embodiment of the present invention. Figure 4 As shown, the process includes the following steps:

[0104] Step S401, obtaining multiple pressure values ​​and multiple temperature values ​​of the spherical cavity. Figure 3 Step S301 of the illustrated embodiment will not be described in detail here.

[0105] Step S402: Based on the multiple temperature values ​​and the multiple pressure values, the rock samples to be analyzed are tested using a microscopic scanning electron microscope, an X-ray diffractometer, and an X-ray fluorescence spectrometer, respectively, and a detector is used to collect a test data set of the rock samples to be analyzed generated by the test. Figure 3 Step S302 of the illustrated embodiment will not be described in detail here.

[0106] Step S403: Send the test data set to the data processing subsystem. Figure 2 Step S203 of the illustrated embodiment will not be described in detail here.

[0107] Step S404: Based on the test data set, the data processing subsystem is used to perform an alternating temperature and pressure characteristic analysis to obtain an alternating temperature and pressure characteristic analysis result of the rock sample to be analyzed.

[0108] Specifically, the above step S404 includes:

[0109] Step S4041, based on the multiple physical information in the test data set, the data processing subsystem is used to analyze the rock microstructure characteristics to obtain a microstructure characteristic information set of the rock sample to be analyzed.

[0110] Specifically, the purpose of characterizing the microscopic morphology of matter can be achieved by amplifying and re-imaging multiple physical information.

[0111] In an optional embodiment, the rock microstructure characteristic analysis may specifically include:

[0112] (1) Mineral particle analysis: The mineral particle images in the test data set can be processed and analyzed. Through the image recognition algorithm, different types of mineral particles can be automatically identified, classified and labeled. Furthermore, parameters such as the size distribution, shape factor, surface area to volume ratio of mineral particles can be calculated to describe the size and shape characteristics of mineral particles. The aggregation state and mutual relationship of mineral particles can be analyzed to understand the distribution law of mineral particles in rocks.

[0113] (2) Crystal structure analysis: Image analysis technology and crystallographic principles can be used to analyze the crystal structure in rocks and determine the crystal lattice parameters, unit cell size, crystal symmetry and other characteristics. Furthermore, structural defects such as defects and dislocations in crystals can be analyzed to understand the integrity and stability of the crystal structure. By comparing the changes in crystal structure under different temperature and pressure conditions, the mechanism of the influence of temperature and pressure on crystal structure can be studied.

[0114] (3) Analysis of microcracks and micropores: Process and analyze images of microcracks and micropores, and measure their size parameters and distribution. Calculate parameters such as density and porosity of microcracks and micropores to describe the pore structure characteristics of rocks. Furthermore, the morphological characteristics of microcracks and micropores, such as the orientation, opening, and roughness of the cracks, as well as the shape and connectivity of the micropores, can be analyzed. Furthermore, the changing patterns of microcracks and micropores under different temperature and pressure conditions can be studied to evaluate their effects on the mechanical properties and permeability of rocks.

[0115] Finally, the analysis results obtained from the above analysis process are integrated to form a microstructural feature information set of the rock sample to be analyzed.

[0116] Step S4042, based on the multiple X-ray diffraction signals in the test data set, use the data processing subsystem to perform rock phase characteristic analysis to obtain a phase characteristic information set of the rock sample to be analyzed.

[0117] Specifically, according to the description of step S3022 above, the rock phase characteristics can be analyzed based on the multiple X-ray diffraction signals obtained, and the corresponding rock phase characteristics changing with temperature and pressure can be obtained to form a corresponding phase characteristic information set.

[0118] Step S4043, based on the multiple X-ray fluorescence feature information in the test data set, the data processing subsystem is used to analyze the rock mineral element content to obtain the mineral element information set of the rock sample to be analyzed.

[0119] In some optional implementations, the above step S4043 includes:

[0120] Step a1: determining a plurality of X-ray fluorescence wavelength information and a plurality of X-ray fluorescence intensity information based on a plurality of X-ray fluorescence characteristic information.

[0121] Step a2, determining multiple mineral element information based on multiple X-ray fluorescence wavelength information.

[0122] Step a3: determining multiple mineral element content information based on multiple X-ray fluorescence intensity information.

[0123] Step a4: determining a mineral element information set based on the multiple mineral element information and the multiple mineral element content information.

[0124] Specifically, according to the description of step S3023 above, the elements contained in the material can be determined in combination with the wavelength of the X-ray fluorescence contained in the X-ray fluorescence characteristic information: each element has its own unique X-ray fluorescence wavelength characteristic, and by comparing with the wavelength database of known elements, the elements in the rock sample can be accurately identified.

[0125] Furthermore, for complex rock samples, there may be overlapping peaks of multiple elements, and a spectrum decomposition algorithm is needed to decompose the overlapping X-ray fluorescence peaks into peaks of a single element to improve the accuracy of element identification.

[0126] Furthermore, the content of the element can be determined according to the intensity of X-ray fluorescence: Generally speaking, the content of the element is proportional to the intensity of X-ray fluorescence. The content can be calculated by using empirical formula method, standard curve method, basic parameter method and other methods. In the calculation process, factors such as mutual interference between elements and matrix effect need to be considered. The accuracy of content calculation can be improved by using correction algorithm and reference standard samples for correction.

[0127] Step S4044, based on the microstructure characteristic information set, the phase characteristic information set and the mineral element information set, determine the analysis results of the alternating temperature and pressure characteristics of the rock sample to be analyzed.

[0128] Specifically, the alternating temperature and pressure characteristics analysis may include:

[0129] (1) Analysis of the influence of temperature and pressure on microstructure: Based on the microstructure feature information set, analyze the influence of different temperature and pressure values ​​on the rock microstructure. Observe the changes in the morphology, pore structure, microcracks and other microscopic characteristics of mineral particles with the change of temperature and pressure. For example, determine whether mineral particles deform and fuse, whether pores shrink, and whether microcracks close under high temperature and high pressure conditions. Analyze the influence of these microstructural changes on the mechanical properties and permeability of rocks.

[0130] (2) Analysis of the influence of temperature and pressure on physical phases: Using the physical phase characteristic information set, study the influence of temperature and pressure changes on the physical phase composition and crystal structure of rocks. Determine the stability of mineral phases, phase transitions, and changes in crystal structure parameters under different temperature and pressure conditions. For example, analyze whether certain mineral phases will decompose or transform into other phases within a specific temperature and pressure range, and how the lattice parameters and symmetry of the crystal structure change with temperature and pressure. This helps to understand the changes in the physical and chemical properties of rocks under alternating temperature and pressure.

[0131] (3) Analysis of the influence of temperature and pressure on mineral elements: Based on the mineral element information set, analyze the influence of temperature and pressure on the content and distribution of mineral elements in rocks. Determine the migration, enrichment and distribution rules of each element under different temperature and pressure conditions. For example, study whether certain elements are more likely to be enriched in a specific mineral phase under high temperature and high pressure environments, or whether diffusion and migration of elements will occur. This is of great significance for studying the geochemical processes of rocks and resource evaluation.

[0132] Furthermore, the analysis results from various aspects are integrated to form an overall understanding of the characteristics of rocks under alternating temperature and pressure conditions, that is, to obtain the corresponding alternating temperature and pressure characteristic analysis results.

[0133] The rock alternating temperature and pressure characteristic analysis method provided in this embodiment can understand the microscopic morphological changes of rocks under alternating temperature and pressure conditions in detail and determine the corresponding microstructural characteristic information set by using multiple physical information to analyze the rock microstructure characteristics. Further, by using multiple X-ray diffraction signals to analyze the physical phase characteristics of rocks, the composition, content and crystal structure of different mineral phases in the rock can be accurately determined, and the changes of the physical phase under alternating temperature and pressure can be analyzed. Further, by using the characteristic that the X-ray fluorescence wavelength of different elements depends only on the energy level difference of the atomic electron layer of each element, the types of mineral elements in the rock sample can be accurately identified. Further, by using the correlation between the X-ray fluorescence intensity and the element content, the content of each mineral element in the rock can be quantitatively analyzed more accurately. Therefore, by implementing the present invention, the information at the three levels of micro, physical phase and element can be combined with each other, and the behavior and change mechanism of the rock under alternating temperature and pressure can be more deeply understood, and then the alternating temperature and pressure characteristic analysis results of the rock sample to be analyzed can be comprehensively and comprehensively determined.

[0134] In this embodiment, a rock alternating temperature and pressure characteristic analysis system 1 is provided. Figure 1 As shown, the rock alternating temperature and pressure characteristics analysis system 1 includes an equipment component device 11, a microscopic scanning electron microscope 12, an X-ray diffractometer 13, an X-ray fluorescence spectrometer 14, a detector 15 and a data processing subsystem 16.

[0135] Furthermore, the equipment assembly device 11 includes a spherical cavity 111 , an air compression pump 112 , a heating base 113 and a conveying device 114 .

[0136] Furthermore, a sample stage is disposed in the spherical cavity 111 , and a heating base 112 is disposed on the top of the sample stage.

[0137] Furthermore, the conveying device 114 is used to input the rock sample to be analyzed into the spherical cavity 111 , so that the spherical cavity 111 is placed on the top of the heating base 112 .

[0138] Furthermore, the functions of other devices refer to the implementation process of the rock alternating temperature and pressure characteristics analysis method provided in the above embodiment of the present invention, and will not be repeated here.

[0139] The rock alternating temperature and pressure characteristics analysis system provided in this embodiment can realize a comprehensive analysis of the rock alternating temperature and pressure characteristics by integrating multiple devices such as equipment components, microscopic scanning electron microscopes, X-ray diffractometers, X-ray fluorescence spectrometers, detectors and data processing subsystems.

[0140] In one example, if Figure 5 As shown, a multifunctional system for analyzing rock properties by alternating temperature and pressure is provided, comprising:

[0141] (1) Test system: micro scanning electron microscope (SEM), X-ray diffractometer (XRD); X-ray fluorescence spectrometer (XRF).

[0142] Microscopic scanning electron microscope (SEM): It uses a focused narrow high-energy electron beam to scan the sample, and stimulates various physical information through the interaction between the beam and the material. This information is collected, amplified, and re-imaged to achieve the purpose of characterizing the microscopic morphology of the material. The resolution of the new scanning electron microscope can reach 1nm; the magnification can reach 300,000 times and above and is continuously adjustable; and it has a large depth of field, a large field of view, and a good three-dimensional imaging effect. Based on the scanning electron microscope experiment, the damage mechanism of the rock microstructure under different temperature and pressure effects can be studied, and the initiation, expansion, and connectivity of cracks can be observed.

[0143] X-ray diffractometer (XRD): Each mineral has its own specific X-ray diffraction pattern, and the content of a certain mineral in the sample is positively correlated with its diffraction peak and intensity. In a mixture, the diffraction pattern of one material component has nothing to do with the presence or absence of other material components. This is the basis for X-ray diffraction to perform phase quantitative analysis. X-ray diffraction is the "fingerprint" of the crystal. Different substances have different X-ray diffraction characteristic peaks (lattice type, unit cell size, number and position of atoms or molecules in the unit cell, etc.). Different structural parameters will result in different positions and intensities of X-ray diffraction lines. Therefore, different mineral components can be distinguished by comparing the positions and intensities of X-ray diffraction lines. Based on X-ray diffraction experiments, the characteristics of rock phase characteristics changing with temperature and pressure can be studied.

[0144] X-ray fluorescence spectrometer (XRF): When X-rays are irradiated on materials, in addition to diffraction, scattering and absorption, secondary X-rays, namely X-ray fluorescence, are also generated, and the wavelength depends only on the energy level difference of the electron layers of the atoms of each element. Therefore, the elements contained in the material can be determined by the wavelength of X-ray fluorescence, and the content of the element can be determined by its intensity. Based on the X-ray fluorescence test, the changes in the content of the main mineral elements of the rock sample after being subjected to different temperature and pressure can be quantitatively analyzed.

[0145] Among them, the fluorescent X-rays of each element have specific wavelengths, which are related to the atomic number of the element. Following Moseley's law, by measuring the wavelength of the fluorescent X-rays, the type of element in the sample can be determined. The intensity of the fluorescent X-rays is proportional to the content of the corresponding element in the sample, and the standard curve method, incremental method and internal standard method are used for quantitative analysis. The standard curve method is based on the linear relationship between the X-ray fluorescence intensity of the element to be measured and its content in the sample. First, prepare a series of standard samples containing different concentrations of the element to be measured. Then measure the X-ray fluorescence intensity of these standard samples, and draw a standard curve of fluorescence intensity and element content. Finally, measure the X-ray fluorescence intensity of the unknown sample, and calculate the content of the element to be measured in the sample through the standard curve.

[0146] (2) Equipment components: spherical cavity, air compression pump, conveying device and heating base (equipped with temperature control device);

[0147] The air compression pump is used for variable pressure testing, and is used in conjunction with the air inlet and outlet to achieve a vacuum environment or change in air pressure in the spherical cavity during testing. The purpose of vacuuming is to avoid exposing the sample to the air as much as possible, which will cause surface oxidation or adsorption of water vapor and impurities, resulting in errors in the test results, thereby improving the accuracy of the test; the purpose of changing the air pressure is to analyze the changes in the microstructure and crystal structure of rock minerals under different pressures.

[0148] A conveying device is used to deliver rock samples from the outside to the rock sample testing area;

[0149] The heating base is used for variable temperature testing and timely analysis with several test systems.

[0150] Furthermore, the specific operation steps of the multifunctional system for analyzing rock properties by alternating temperature and pressure are as follows:

[0151] A. Place the sample into the conveyor and transport it to the testing area;

[0152] B. Turn on the air compression pump to make the test chamber present different pressure states;

[0153] SEM, XRD, and XRF tests were performed at room temperature to obtain basic information on the characteristics of the rock sample, such as microstructure, physical phase, and main mineral elements. Then, the orthogonal test method was used to repeat the above test at different temperatures and pressures (heating the heating base to reach the target temperature; turning on the air compression pump to change the gas pressure in the spherical cavity through the inlet and outlet valves to reach the target pressure), analyzing the changes in the basic properties of the samples at different temperatures and pressures, and so on, and finally obtaining the temperature and pressure correlation of various characteristics of the rock sample, providing corresponding technical support for actual engineering.

[0154] Among them, the testing process of SEM, XRD and XRF can specifically include:

[0155] 1. The changes in the fracture morphology information (microstructure composition and defects, etc.) of rock samples at room temperature were observed using scanning electron microscopy technology. Then, the fracture morphology information of rock samples was observed again at different temperatures and pressures using an orthogonal experimental design, and the microscopic mechanism of the development of rocks at different temperature and pressure states was further explored.

[0156] 2. Grind the rock sample into powder and sieve it. Put an appropriate amount of the powder sample into the mold and use a tablet press to press it into thin slices. The pressure and holding time should be adjusted according to the nature of the sample and the required thickness to ensure the flatness and density of the sample slice. Place the sample slice on the sample table.

[0157] 3. According to the properties of the sample and the required resolution, set appropriate XRD parameters such as X-ray tube voltage, current, and scanning speed; set appropriate XRF experimental parameters such as voltage, current, etc.

[0158] 4. Start the XRD instrument to collect data. The instrument will automatically record the diffraction intensity data at different angles, and then use professional XRD analysis software to process and analyze the collected data. By comparing the diffraction spectrum in the standard database, the phase composition and relative content of the sample can be determined.

[0159] 5. Start the XRF instrument, collect the X-ray fluorescence data emitted by the sample, use the data analysis system to process the collected data, and obtain the results of elemental composition. By analyzing the wavelength of the fluorescent X-ray, the type of element in the sample is determined. According to the intensity of the fluorescent X-ray, combined with a known standard curve or internal standard method, the content of each element is calculated.

[0160] 6. Using orthogonal experimental design, repeat 4 and 5 at different temperatures and pressures to explore and analyze the phase composition and relative content of samples at different temperature and pressure states, as well as the changes in element types and contents, and further study the fatigue failure mechanism of rocks under alternating temperature and pressure expansion loads.

[0161] The embodiment of the present invention also provides a computer device for executing the above Figures 2 to 4 The rock alternating temperature and pressure characteristics analysis device shown.

[0162] See also Figure 6 , Figure 6 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 6 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 6 A processor 10 is taken as an example.

[0163] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0164] The memory 20 stores instructions executable by at least one processor 10, so that at least one processor 10 executes the method shown in the above embodiment.

[0165] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0166] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0167] The computer device further comprises a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0168] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0169] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0170] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for analyzing the alternating temperature and pressure characteristics of rocks, characterized in that: A system for analyzing the alternating temperature and pressure characteristics of rocks, the system comprising an equipment component device, a microscopic scanning electron microscope, an X-ray diffractometer, an X-ray fluorescence spectrometer, a detector and a data processing subsystem, the equipment component device comprising a spherical cavity; the method comprising: Acquiring multiple pressure values ​​and multiple temperature values ​​of the spherical cavity; Based on the multiple temperature values ​​and the multiple pressure values, the rock sample to be analyzed is tested using the microscopic scanning electron microscope, the X-ray diffractometer and the X-ray fluorescence spectrometer respectively, and the test data set of the rock sample to be analyzed generated by the test is collected using the detector, and the rock sample to be analyzed is stored in the spherical cavity; Sending the test data set to the data processing subsystem; Based on the test data set, the data processing subsystem is used to perform alternating temperature and pressure characteristic analysis to obtain the alternating temperature and pressure characteristic analysis results of the rock sample to be analyzed.

2. The method according to claim 1, characterized in that The equipment component device also includes an air compression pump and a heating base; using the equipment component device to obtain multiple pressure values ​​and multiple temperature values, including: Using the air compression pump to change the air pressure in the spherical cavity and determine the multiple pressure values; The temperature in the spherical cavity is changed by using the heating base and the plurality of temperature values ​​are determined.

3. The method according to claim 1, characterized in that Based on the multiple temperature values ​​and the multiple pressure values, the rock sample to be analyzed is tested using the microscopic scanning electron microscope, the X-ray diffractometer and the X-ray fluorescence spectrometer respectively, and the test data set of the rock sample to be analyzed generated by the test is collected using the detector, including: Based on the multiple temperature values ​​and the multiple pressure values, the microscopic scanning electron microscope is used to emit a focused high-energy electron beam to the rock sample to be analyzed, so that the rock sample to be analyzed is excited to generate multiple physical information under the irradiation of the high-energy electron beam; Based on the multiple temperature values ​​and the multiple pressure values, using the X-ray diffractometer to perform an X-ray diffraction test on the rock sample to be analyzed, so that the rock sample to be analyzed diffracts to generate multiple X-ray diffraction signals; Based on the multiple temperature values ​​and the multiple pressure values, using the X-ray fluorescence spectrometer to perform an X-ray fluorescence experimental test on the rock sample to be analyzed, so that the rock sample to be analyzed diffracts to generate multiple X-ray fluorescence characteristic information; The detector is used to respectively collect the plurality of physical information, the plurality of X-ray diffraction signals and the plurality of X-ray fluorescence characteristic information to form the test data set.

4. The method according to claim 3, characterized in that: Based on the test data set, the data processing subsystem is used to perform an alternating temperature and pressure characteristic analysis to obtain an alternating temperature and pressure characteristic analysis result of the rock sample to be analyzed, including: Based on the multiple physical information in the test data set, using the data processing subsystem to perform rock microstructure characteristic analysis to obtain a microstructure characteristic information set of the rock sample to be analyzed; Based on the multiple X-ray diffraction signals in the test data set, using the data processing subsystem to perform rock phase characteristic analysis to obtain a phase characteristic information set of the rock sample to be analyzed; Based on the multiple X-ray fluorescence feature information in the test data set, using the data processing subsystem to analyze the mineral element content of the rock to obtain the mineral element information set of the rock sample to be analyzed; Based on the microstructure characteristic information set, the phase characteristic information set and the mineral element information set, the alternating temperature and pressure characteristic analysis result of the rock sample to be analyzed is determined.

5. The method according to claim 4, characterized in that Based on the multiple X-ray fluorescence feature information in the test data set, the data processing subsystem is used to perform rock mineral element content analysis to obtain the mineral element information set of the rock sample to be analyzed, including: Determine a plurality of X-ray fluorescence wavelength information and a plurality of X-ray fluorescence intensity information based on the plurality of X-ray fluorescence characteristic information; Determine multiple mineral element information based on the multiple X-ray fluorescence wavelength information; Determine multiple mineral element content information based on the multiple X-ray fluorescence intensity information; The mineral element information set is determined based on the plurality of mineral element information and the plurality of mineral element content information.

6. A rock alternating temperature and pressure characteristic analysis system, characterized in that: Used to perform the rock alternating temperature and pressure characteristics analysis method described in any one of claims 1 to 5; the system includes: an equipment component device, a microscopic scanning electron microscope, an X-ray diffractometer, an X-ray fluorescence spectrometer, a detector and a data processing subsystem, and the equipment component device includes a spherical cavity, an air compression pump and a heating base.

7. The system according to claim 6, characterized in that The equipment assembly device also includes a conveying device; A sample stage is arranged in the spherical cavity, and the heating base is arranged on the top of the sample stage; The conveying device is used to input the rock sample to be analyzed into the spherical cavity, so that the spherical cavity is placed on the top of the heating base.

8. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the rock alternating temperature and pressure characteristics analysis method described in any one of claims 1 to 5 by executing the computer instructions.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the rock alternating temperature and pressure characteristics analysis method according to any one of claims 1 to 5.

10. A computer program product, characterized in that It includes computer instructions, and the computer instructions are used to enable a computer to execute the rock alternating temperature and pressure characteristics analysis method described in any one of claims 1 to 5.

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