CN219915491U - Nondestructive accurate measuring device for rock self-seepage saturation interface - Google Patents
Nondestructive accurate measuring device for rock self-seepage saturation interface Download PDFInfo
- Publication number
- CN219915491U CN219915491U CN202222679118.4U CN202222679118U CN219915491U CN 219915491 U CN219915491 U CN 219915491U CN 202222679118 U CN202222679118 U CN 202222679118U CN 219915491 U CN219915491 U CN 219915491U
- Authority
- CN
- China
- Prior art keywords
- acoustic emission
- emission sensor
- bin
- sample
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011435 rock Substances 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000005213 imbibition Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008054 signal transmission Effects 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 230000001066 destructive effect Effects 0.000 claims 3
- 239000012466 permeate Substances 0.000 claims 2
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 8
- 238000012800 visualization Methods 0.000 abstract description 4
- 239000002609 medium Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses a nondestructive accurate measuring device for a rock self-seepage saturation interface, which comprises a water storage tank, a water storage tank sealing cover, a vacuum valve, an acoustic emission scanning bin data transmission connector, an acoustic emission scanning bin top cover vent hole, a sample bin, a sample water permeable support, a circumferential acoustic emission sensor, an upper acoustic emission sensor, a lower acoustic emission sensor, an acoustic emission sensor movable screw, a conduit, a balance valve and a base. The signal transmission of the annular acoustic emission sensor, the upper acoustic emission sensor, the lower acoustic emission sensor and the acoustic emission sensor moving screw rod is connected with a data processing PCB main board inside the base through an acoustic emission scanning bin data transmission connector and is connected with a computer host and a computer display through data lines. The method can better reflect the self-imbibition real-time path of the pore medium in the rock, and has the advantages of simple operation, high measurement precision, safety, reliability and good visualization effect of the imbibition path.
Description
Technical Field
The utility model relates to the technical field of rock mechanical equipment, in particular to a nondestructive accurate measuring device for measuring a self-imbibition saturation interface of a rock pore medium by utilizing an acoustic emission principle.
Background
In rock mechanics experiments, the measurement of pore medium self-imbibition paths in the rock is difficult, and most of the currently adopted measurement modes are Nuclear Magnetic Resonance (NMR) technologies.
If the current advanced NMR instrument is a high-temperature high-pressure nuclear magnetic resonance online detection system, the model is macroMR12-100H-GS, the magnet used by the system is a permanent magnet, the main frequency is 12.42MHz, and the experiment is carried out at room temperature. However, the method has obvious defects that the method is limited by the measurement time factor of an experimental instrument when describing the self-imbibition path of the pore medium in the rock, the real-time self-imbibition parameter measurement cannot be carried out, and the measurement result is the average value of the superposition of the staged results of the whole self-imbibition saturation process.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the experimental device for measuring the self-imbibition path of the pore medium in the rock, which is safe and reliable and has high real-time visualization degree in the self-imbibition process, and the pore medium self-imbibition path measurement principle can be applied to the self-imbibition experiments of various rocks.
The technical scheme for solving the problems is as follows: a nondestructive accurate measuring device for a rock self-imbibition saturation interface comprises a water storage tank, a water storage tank sealing cover, a vacuum valve, a water storage tank outer wall, a water storage tank inner wall, an acoustic emission scanning bin data transmission connector, an acoustic emission scanning bin top cover vent hole, a sample bin outer wall, a sample permeable support, a circumferential acoustic emission sensor, an upper acoustic emission sensor, a lower acoustic emission sensor, an acoustic emission sensor movable screw, a guide pipe, a balance valve, a base, a data processing PCB main board and a power data interface. The water balance valve is arranged at the top of the conduit between the outer wall of the sample bin and the sample water permeable support, and the electric signal transmission of the annular acoustic emission sensor, the upper acoustic emission sensor, the lower acoustic emission sensor and the acoustic emission sensor moving screw is connected with the data processing PCB main board inside the base through the acoustic emission scanning bin data transmission connector and connected with the computer host and the computer display through data lines.
The nondestructive accurate measuring device for the rock self-imbibition saturation interface has the measuring principle that: the resonant sensor with high sensitivity to acoustic emission has the function of converting the mechanical vibration generated by the sensor surface into an electrical signal, the output voltage V (T, x) of which is the convolution of the surface displacement wave U (x, T) and its response function T (T), caused by the difference in the transmission parameters of the acoustic emission signal of the acoustic source under different media in the detected object: v (T, x) =u (T, x) T (T), thereby determining the displacement, velocity and shape of its medium according to an algorithm. According to the acoustic emission sensor, the detection of penetrating 2-33 mm of material can be realized, and the minimum detectable displacement can reach 10-14m or even smaller, so that the seepage path of the self-seepage saturation interface of the rock pore medium can be accurately measured in a lossless manner.
The nondestructive accurate measuring device for the rock self-imbibition saturation interface is characterized in that a rock sample to be subjected to the self-imbibition experiment is placed at the center of a sample permeable support, an acoustic emission scanning bin top cover and a water storage tank sealing cover are covered, a vacuum valve and a vacuum pump are connected, vacuumizing is stabilized to-2 MPa, and the vacuum valve is closed.
The nondestructive accurate measuring device for the rock self-imbibition saturation interface is characterized in that the outermost part of the nondestructive accurate measuring device is a water storage tank for pore medium self-imbibition saturation water, and the water storage tank is formed by the outer wall of the water storage tank and the inner wall of the water storage tank. The top of the water storage tank is provided with a water storage tank sealing cover and a vacuum valve arranged on the water storage tank sealing cover.
The bottom of the nondestructive accurate measuring device is composed of a base, a data processing PCB main board arranged at the inner top of the base and a power data interface arranged at the outer edge of the base. The vacuum environment inside the nondestructive accurate measuring device is completed by a vacuum pump connected with a vacuum valve, so that the influence of air on the acoustic wave transmission parameters is eliminated.
The nondestructive accurate measuring device for the rock self-seepage saturation interface is characterized in that the outside of the sample bin and the inside of the water storage tank are composed of an acoustic emission scanning bin, and the inside of the sample bin is composed of a sample water permeable support arranged at the center of the bottom of the sample bin and a water balance valve arranged at the top of a guide pipe between the outer wall of the sample bin and the sample water permeable support.
The nondestructive accurate measuring device for the rock self-seepage saturation interface comprises an acoustic emission scanning bin, an acoustic emission scanning bin data transmission connector, a guide pipe at the bottom of the acoustic emission scanning bin, a lower acoustic emission sensor and an acoustic emission scanning bin top cover at the top of the acoustic emission scanning bin, wherein the acoustic emission scanning bin is composed of a circumferential acoustic emission sensor in the acoustic emission scanning bin, an acoustic emission sensor moving screw rod, and the acoustic emission scanning bin data transmission connector at the lower part of the acoustic emission scanning bin.
The nondestructive accurate measuring device for the rock self-seepage saturation interface is characterized in that four annular acoustic emission sensors and four acoustic emission sensor moving screws for controlling the annular acoustic emission sensors to scan up and down are arranged in the acoustic emission scanning bin, and each annular acoustic emission sensor and the matched acoustic emission sensor moving screw are respectively arranged at 90 degrees with each other according to the included angle of a circular plane.
The nondestructive accurate measuring device for the rock self-seepage saturation interface can transmit electric signals of the circumferential acoustic emission sensor, the upper acoustic emission sensor and the acoustic emission sensor moving screw, simultaneously isolate air communication between the upper part of the acoustic emission scanning bin and a data line connecting hole in the base, and mount the lower acoustic emission sensor at the central position of the bottom of the acoustic emission scanning bin and in the same space with the guide pipe.
The nondestructive accurate measuring device for the rock self-seepage saturation interface is characterized in that the acoustic emission scanning bin top cover consists of 2 vent holes and an upper acoustic emission sensor at the center of the acoustic emission scanning bin top cover.
The nondestructive accurate measuring device for the rock self-seepage saturation interface is characterized in that the electric signal transmission of the annular acoustic emission sensor, the annular acoustic emission sensor and the acoustic emission sensor moving screw is connected with a data processing PCB main board inside a base through an acoustic emission scanning bin data transmission connector and is connected with a computer host and a computer display through data lines with a power supply data interface.
The utility model has the beneficial effects that: the utility model has the characteristics of low manufacturing cost, simple experimental operation, high measurement precision, high visualization degree in the experimental process and the like, can reduce the operation time of experimental staff, reduce repeated and frequent experimental operation, reduce the radiation risk of nuclear magnetism, and has good social benefit and economic benefit.
Drawings
FIG. 1 is a three-dimensional schematic diagram of a imbibition assay device according to the utility model.
FIG. 2 is a schematic cross-sectional view of a imbibition measurement apparatus according to the utility model.
FIG. 3 is a schematic top view of the wicking assay device of the present utility model.
FIG. 4 is a schematic view of the inside of an acoustic emission scanning bin of the seepage and absorption measuring device of the utility model.
FIG. 5 is a schematic diagram of an acoustic emission sensor arrangement of a imbibition measurement device of the utility model.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
1-5, a nondestructive accurate measuring device for a rock self-imbibition saturation interface comprises a water storage tank outer wall 1, a water storage tank inner wall 2, a water storage tank 3, a water storage tank sealing cover 4, a vacuum valve 5, an acoustic emission scanning bin 6, an acoustic emission scanning bin top cover 7, an acoustic emission scanning bin top cover vent hole 8, an acoustic emission scanning bin data transmission connector 9, a sample bin outer wall 10, a sample bin 11, a sample permeable support 12, a conduit 13, a water balance valve 14, a base 15, a data processing PCB main board 16, a power data interface 17, a circumferential acoustic emission sensor 18, an upper acoustic emission sensor 19, a lower acoustic emission sensor 20, an acoustic emission sensor moving screw 21, a computer host 22 and a computer display 23.
The barrel body ring formed by the outer wall 1 of the water storage tank at the outermost part and the inner wall 2 of the water storage tank at the inner part of the nondestructive accurate measuring device for the rock self-seepage saturation interface forms the water storage tank 3. The water storage tank sealing cover 4 is arranged at the top of the water storage tank 3, and the vacuum valve 5 forming the inner and outer boundary channels of the container is arranged at the position, close to the edge, of the water storage tank sealing cover 4.
The acoustic emission scanning bin 6 is divided into an upper vacuum sealing part and a bottom fixing part by an acoustic emission scanning bin data transmission connector 9 at the middle and lower part of the acoustic emission scanning bin 6, and the whole acoustic emission scanning bin 6 is arranged between the water storage tank inner wall 2 and the sample bin outer wall 10 and accommodates the whole sample bin 11. The sample chamber 11 is internally formed by a sample permeable support 12, a conduit 13 and a water balance valve 14.
The sample water permeable support 12 is arranged at the center of the bottom of the sample bin 11, the guide pipe 13 penetrates through the fixed part of the bottom of the acoustic emission scanning bin 6 to enable the water storage tank 3 to be communicated with the sample bin 11, the water balance valve 14 is arranged at the top of the guide pipe 13 at the bottom of the sample bin 11 between the outer wall 10 of the sample bin and the sample water permeable support 12, and the stability of a self-seepage water plane is controlled.
The top of the acoustic emission scanning bin 6 is provided with an acoustic emission scanning bin top cover 7 for conveniently installing an acoustic emission sensor 19 and protecting a sample 24, 2 symmetrical acoustic emission scanning bin top cover vent holes 8 are arranged on a circle with the same radius of the acoustic emission scanning bin top cover 7 by taking the center of the top cover as the center of the circle, and the acoustic emission sensor 19 is arranged at the center of the acoustic emission scanning bin top cover 7. Four circumferential acoustic emission sensors 18 and four acoustic emission sensor moving screws 21 for controlling the circumferential acoustic emission sensors 18 to move up and down and scan are arranged in the acoustic emission scanning bin 6, and each circumferential acoustic emission sensor 18 and the matched acoustic emission sensor moving screw 21 are respectively arranged at 90 degrees with each other according to the included angle of a circular plane. The upper top surface of the center of the bottom fixed part of the acoustic emission scanning bin 6 is provided with a lower acoustic emission sensor 20.
The electrical signals among the circumferential acoustic emission sensor 18, the upper acoustic emission sensor 19 and the acoustic emission sensor moving screw 21 are transmitted through the acoustic emission scanning bin data transmission connector 9.
When the device is used, a proper amount of self-imbibition experimental water is added into the water storage tank 3 of the nondestructive accurate measuring device for the self-imbibition saturation interface of the rock, and the height of the self-imbibition experimental water is not more than the top of the inner wall 2 of the water storage tank. After the water level at the bottom of the sample bin 11 is stable, the center of the bottom surface of the sample 24 is aligned with the center of the sample water permeable support 12, the acoustic emission scanning bin top cover 7 is closed, whether the ventilation holes 8 of the 2 acoustic emission scanning bin top covers are transparent or not is checked, the water storage tank sealing cover 4 is closed, the vacuum valve 5 is connected with the vacuum pump through a conduit, and the tightness of the joint is checked. After checking, the vacuum pump is started to carry out vacuumizing operation, so that the internal pressure of the nondestructive accurate measuring device of the rock self-seepage saturation interface is kept at-2 MPa, and the power data interface 17, the computer host 22 and the computer display 23 are connected through a data line.
In the experimental process, four circumferential acoustic emission sensors 18 in the acoustic emission scanning bin 6 in the nondestructive accurate measuring device for the rock self-seepage and saturation interface automatically realize the determination of the monitoring position of the sample 24 by the up-down movement of the acoustic emission sensor moving screw 21 under the control of the data processing PCB main board 16 so as to accurately determine the monitoring position of the sample 24 in the height direction, thereby eliminating the phenomenon that the sound waves at the edge of the sample 24 cannot be monitored. By comprehensively analyzing and processing the data of each sensor of the four ring-direction acoustic emission sensors 18, the two fixed upper acoustic emission sensors 19 and the lower acoustic emission sensors 20 which can move up and down and combining the acoustic imaging principle, the visualization of the rock self-imbibition process path is realized, wherein the positions of the four ring-direction acoustic emission sensors 18 in the height direction of the sample 24 are not changed once being determined in order to reduce the influence of other noise factors; the data measured by the lower acoustic emission sensor 20 can automatically ignore the influence of the initial value aqueous medium of the self-seepage experiment at the bottom of the sample bin 11 and the sample water permeable support 12 according to an algorithm.
Claims (8)
1. A harmless accurate survey device that is used for rock to ooze saturated interface, its characterized in that: the device comprises a water storage tank, a water storage tank sealing cover, a vacuum valve, a water storage tank outer wall, a water storage tank inner wall, an acoustic emission scanning bin data transmission connector, an acoustic emission scanning bin top cover vent hole, a sample bin outer wall, a sample permeable support, a circumferential acoustic emission sensor, an upper acoustic emission sensor, a lower acoustic emission sensor, a guide pipe, a water balance valve, a base, a data processing PCB main board and a power supply data interface, wherein electric signal transmission of the circumferential acoustic emission sensor, the upper acoustic emission sensor, the lower acoustic emission sensor and the acoustic emission sensor is connected with the data processing PCB main board inside the acoustic emission detector base through the acoustic emission scanning bin data transmission connector, and is connected with a computer host and a computer display through data lines.
2. The nondestructive accurate measurement device for a rock self-imbibition saturation interface according to claim 1, wherein: the water storage tank is a barrel body formed by encircling an outermost water storage tank outer wall and an inner water storage tank inner wall, the water storage tank sealing cover is arranged at the top of the water storage tank, and the vacuum valve is arranged at the position, close to the edge, of the water storage tank sealing cover so that the inner periphery and the outer periphery of the container are communicated.
3. The nondestructive accurate measurement device for a rock self-imbibition saturation interface according to claim 1, wherein: the acoustic emission scanning bin is divided into an upper vacuum sealing part and a lower fixing part by an acoustic emission scanning bin data transmission connector at the middle and lower parts of the acoustic emission scanning bin, and the whole acoustic emission scanning bin is arranged between the inner wall of the water storage tank and the outer wall of the sample bin and accommodates the sample bin consisting of a sample water permeable support, a conduit and a water balance valve.
4. The nondestructive accurate measurement device for a rock self-imbibition saturation interface according to claim 2, wherein: the vacuum valve arranged at the sealing cover of the water storage tank and close to the edge of the sealing cover, which enables the inner periphery and the outer periphery of the container to be communicated, controls the atmospheric pressure environment in the experimental process to be-2 MPa so as to eliminate the influence of air media on acoustic wave transmission parameters.
5. A non-destructive accurate measurement apparatus for a rock self-imbibition saturation interface according to claim 3, wherein: the sample support that permeates water is installed in sample storehouse bottom central point, the pipe passes the fixed part of acoustic emission scanning storehouse bottom and makes the storage water tank communicate with the sample storehouse, the balanced water valve is installed at the pipe top of sample storehouse bottom between sample storehouse outer wall and the sample support that permeates water, control from the stability of infiltration water plane.
6. A non-destructive accurate measurement apparatus for a rock self-imbibition saturation interface according to claim 3, wherein: the acoustic emission scanning bin data transmission connector is responsible for transmission of electric signals of the circumferential acoustic emission sensor, the upper acoustic emission sensor and the acoustic emission sensor moving screw, and isolates air communication between the upper part of the acoustic emission scanning bin and a data line connection hole in the base.
7. A non-destructive accurate measurement apparatus for a rock self-imbibition saturation interface according to claim 3, wherein: the top of the acoustic emission scanning bin is provided with an acoustic emission sensor which is convenient to install and an acoustic emission scanning bin top cover which plays a role in protecting a sample, the upper top surface of the center of the fixed part of the bottom of the acoustic emission scanning bin is provided with a lower acoustic emission sensor, and the acoustic emission scanning bin is internally formed by a circumferential acoustic emission sensor and an acoustic emission sensor moving screw.
8. The nondestructive accurate measurement device for a rock self-imbibition saturation interface of claim 7, wherein: the acoustic emission scanning bin top cover is characterized in that 2 symmetrical vent holes are arranged on a circle with the same radius and taking the center of the top cover as the center of the circle, an acoustic emission sensor is arranged at the center of the acoustic emission scanning bin top cover, four annular acoustic emission sensors and four acoustic emission sensor moving screws for controlling the annular acoustic emission sensors to scan up and down are arranged in the acoustic emission scanning bin, the annular acoustic emission sensors and the matched acoustic emission sensor moving screws are respectively arranged at 90 degrees with each other in a circular plane included angle, and the four annular acoustic emission sensors can automatically determine the monitoring position of a sample under the control of a data processing PCB main board through the acoustic emission sensor moving screws so as to accurately determine the monitoring position of the height direction of the sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222679118.4U CN219915491U (en) | 2022-10-12 | 2022-10-12 | Nondestructive accurate measuring device for rock self-seepage saturation interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222679118.4U CN219915491U (en) | 2022-10-12 | 2022-10-12 | Nondestructive accurate measuring device for rock self-seepage saturation interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915491U true CN219915491U (en) | 2023-10-27 |
Family
ID=88429279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222679118.4U Active CN219915491U (en) | 2022-10-12 | 2022-10-12 | Nondestructive accurate measuring device for rock self-seepage saturation interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915491U (en) |
-
2022
- 2022-10-12 CN CN202222679118.4U patent/CN219915491U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105806766B (en) | A kind of flexible wall permeameter for surveying body change | |
| CN101672829B (en) | Method for measuring parameter of omega welding seam defect | |
| CN101813513B (en) | Hydrophone testing device | |
| CN103306318B (en) | A kind of panoramic ultrasonic side wall detector | |
| US9097609B1 (en) | Hermetic seal leak detection apparatus with variable size test chamber | |
| CN104198593A (en) | High-hydrostatic-pressure low-frequency calibrating cavity and testing method thereof | |
| US2918651A (en) | Calibrator for underwater hydrophones | |
| CN206311174U (en) | Deep-sea liquid level detecting sensor | |
| CN102392635A (en) | Underground well water level observation device | |
| CN112067481B (en) | Intelligent geotechnical mechanical parameter testing system | |
| WO2021003688A1 (en) | Triaxial experiment device for hydrate | |
| CN107084883A (en) | High pressure low temperature frozen soil pressure-loaded system | |
| CN219915491U (en) | Nondestructive accurate measuring device for rock self-seepage saturation interface | |
| CN107084884A (en) | High pressure low temperature frozen soil pressure loading device | |
| CN210071521U (en) | Natural gas hydrate sediment dynamic triaxial experimental device with ultrasonic scanning | |
| CN109298076B (en) | Lamb wave-based active valve internal leakage damage detection system and method | |
| CN107688165A (en) | A kind of extra-high voltage transformer vibration noise source localization method | |
| KR101174249B1 (en) | device and method of signal transmission between hyperbaric chamber and underwater housing using sound wave in hydrostatic test | |
| CN205607820U (en) | Flexible wall infiltration appearance that measurable body becomes | |
| CN211955049U (en) | Hydrate-containing sediment mechanical property detection device | |
| CN109946023A (en) | A kind of pipeline gas leakage discriminating gear and sentence knowledge method | |
| CN115452952A (en) | Nondestructive accurate determination device and method for rock self-imbibition saturated interface | |
| CN202273672U (en) | Water level observation device for underground well | |
| CN114414456B (en) | Method and device for calculating saturation of gas hydrate | |
| CN105842138B (en) | A kind of mercury column interface automatic regulating system and rock core pore structure analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |