CN110261019B - Carbon dioxide phase transition fracturing pressure testing device - Google Patents
Carbon dioxide phase transition fracturing pressure testing device Download PDFInfo
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- CN110261019B CN110261019B CN201910441216.4A CN201910441216A CN110261019B CN 110261019 B CN110261019 B CN 110261019B CN 201910441216 A CN201910441216 A CN 201910441216A CN 110261019 B CN110261019 B CN 110261019B
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- carbon dioxide
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- pressure
- change
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 184
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 93
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 93
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 230000007704 transition Effects 0.000 title claims description 19
- 239000000945 filler Substances 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 34
- 238000003860 storage Methods 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000010008 shearing Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 13
- 238000013022 venting Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 239000011435 rock Substances 0.000 description 8
- 239000002360 explosive Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 238000005422 blasting Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0052—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to impact
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/12—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of critical point; of other phase change
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a carbon dioxide phase-change fracturing pressure testing device. The device of the invention comprises a base; the sleeve is vertically arranged on the base, the top end of the sleeve is open, the inner wall of the sleeve is provided with a plurality of pressure sensors, and the lower end of the sleeve is provided with a gas leakage hole; the carbon dioxide phase-change fracturing device is vertically arranged in the sleeve, a gap is formed between the carbon dioxide phase-change fracturing device and the inner wall of the sleeve, and the gap is filled with filler; the energy release port of the carbon dioxide phase-change fracturing device is positioned below the air release hole; and the data acquisition and processing system is electrically connected with the pressure sensor. The invention can effectively test the explosion venting pressure of the carbon dioxide phase-change fracturing device under the vertical working condition, can obtain the carbon dioxide phase-change explosion venting pressure time course curves at different positions and the carbon dioxide phase-change explosion venting pressure along course distribution curves at different times, and has important significance for researching the point type energy gathering effect of the carbon dioxide phase-change fracturing technology.
Description
Technical Field
The invention relates to the technical field of rock breaking, in particular to a carbon dioxide phase transition fracturing pressure testing device.
Background
With the development of society, the requirements of urban excavation engineering on vibration and environment are higher and higher, common explosive blasting cannot be used under some conditions, and carbon dioxide phase change fracturing technology is used as a primary replacing means for the current explosive blasting, so that the method is widely applied. However, since the practical level of the carbon dioxide phase-change fracturing technology is far higher than the theoretical level, the load research of the carbon dioxide phase-change fracturing technology is still in the primary stage. The existing carbon dioxide phase-change fracturing technology research generally utilizes theoretical calculation to calculate carbon dioxide phase-change fracturing energy, and then converts the phase-change fracturing energy into TNT equivalent as phase-change fracturing load. However, the shock wave action generated by the explosive load is far greater than the static wedge action of explosive gas, so that the shock wave action is mainly used when the explosive breaks rock, the gas wedge action in the carbon dioxide phase-change fracturing rock breaking process plays a non-negligible role in the rock crack propagation, the energy proportion of the synergistic action of the stress wave and the gas in the carbon dioxide phase-change fracturing rock breaking process is not clear, and the theoretical research on directly converting the carbon dioxide phase-change fracturing load into the explosive load has a certain defect. In contrast, the pressure time-course curve of the carbon dioxide phase-change fracturing can be directly researched to more simply and accurately reflect the phase-change load characteristics of the carbon dioxide.
There are a variety of existing carbon dioxide phase transition pressure time course curve tests. The pressure in the carbon dioxide phase-change cracking tube is tested, namely the pressure in the carbon dioxide phase-change cracking tube is tested, and certain difference exists between the pressure in the carbon dioxide phase-change cracking tube and the pressure of high-pressure gas sprayed by the energy release port of the carbon dioxide phase-change cracking device, so that the pressure of carbon dioxide phase-change explosion release cannot be accurately reflected. A carbon dioxide phase change fracturing device with a single energy release hole is sleeved in a sealed steel pipe, a drilling hole is simulated by the steel pipe, the steel pipe is prone to carry out carbon dioxide phase change fracturing pressure test, but the test method has a part of defects, in most cases, the carbon dioxide phase change fracturing device is arranged nearly vertically, a carbon dioxide phase change fracturing pressure time course curve measured in prone position only meets the relative position relation between the carbon dioxide phase change fracturing device and the drilling hole in horizontal tunneling, and does not meet the relative position relation between the carbon dioxide phase change fracturing device and the drilling hole in most cases.
Because carbon dioxide phase-change fracturing is time-consuming and labor-consuming to perform on-site test, and manpower and material resources are wasted, the method for measuring the carbon dioxide phase-change fracturing pressure time course curve in a laboratory is an economic and rapid method. Because the accuracy of the carbon dioxide phase-change fracturing time course curve obtained by the existing test is not high, and the carbon dioxide phase-change fracturing technology is a point type energy gathering blasting technology, and certain differences exist in pressure time course curves at different positions in the same section, a testing device and a testing method capable of accurately obtaining the carbon dioxide phase-change explosion venting pressure time course curves at different positions in a drill hole under different fracturing parameters are needed, so that the carbon dioxide phase-change explosion venting power can be accurately described, and a theoretical basis is provided for field practical application.
Disclosure of Invention
The invention aims to provide the carbon dioxide phase-change fracturing pressure testing device which can effectively test the explosion venting pressure of the carbon dioxide phase-change fracturing device under the vertical working condition, aiming at the defects of the prior art.
The invention relates to a carbon dioxide phase change fracturing pressure testing device, which comprises a base; the sleeve is vertically arranged on the base, the top end of the sleeve is open, the inner wall of the sleeve is provided with a plurality of pressure sensors, and the lower end of the sleeve is provided with a gas leakage hole; the carbon dioxide phase-change fracturing device is vertically arranged in the sleeve, a gap is formed between the carbon dioxide phase-change fracturing device and the inner wall of the sleeve, and the gap is filled with filler; the energy release port of the carbon dioxide phase transition fracturing device is positioned below the air release hole; and the data acquisition and processing system is electrically connected with the pressure sensor.
Preferably, the air release holes are provided with wire netting for preventing the filler from leaking out of the air release holes.
Preferably, the plurality of pressure sensors 8 are arranged along the axial direction of the sleeve 2 and the circumferential inner wall at intervals, the pressure sensors 8 arranged along the axial direction of the sleeve 2 are arranged on the same straight line at equal intervals, the pressure sensors 8 arranged along the circumferential inner wall at intervals are on the same horizontal plane, and at least 4 pressure sensors 8 on the same horizontal plane are arranged.
Preferably, a plurality of pressure sensors 8 are also arranged on the horizontal plane where the energy release openings 351 are located at intervals along the inner circumferential wall, and at least two pressure sensors 8 correspond to the energy release openings 351.
Preferably, the carbon dioxide phase change fracturing device comprises a filling head, a liquid storage pipe, a heating pipe, a constant pressure shear slice and an energy release head; the liquid storage pipe is vertically arranged in the sleeve, the filling head is arranged at the top end of the liquid storage pipe, the energy discharging head is detachably arranged at the bottom end of the liquid storage pipe, the constant-pressure shear slice can be arranged at the bottom end of the liquid storage pipe, and the heating pipe is arranged in the liquid storage pipe and used for heating liquid carbon dioxide in the liquid storage pipe; the energy discharging port is arranged on the energy discharging head.
Preferably, the carbon dioxide phase transition fracturing device is detachably and vertically arranged in the sleeve through a fixing mechanism.
Preferably, the fixing mechanism comprises a plurality of bolts, a plurality of fixing threaded holes are formed in the side wall of the sleeve at intervals along the axial direction of the sleeve, the bolts correspond to the fixing threaded holes one by one, and one end of each bolt penetrates through the corresponding fixing threaded hole to abut against the outer tube wall of the liquid storage tube.
Preferably, the sleeve is detachably and vertically arranged on the base through a mounting mechanism.
Preferably, the mounting mechanism comprises a mounting screw fixedly arranged at the bottom end of the sleeve, a mounting screw hole is formed in the base, and the mounting screw is screwed in the mounting screw hole.
Preferably, the mounting mechanism further comprises at least two support rods, at least two support grooves are formed in the outer wall of the sleeve, the support grooves correspond to the support rods one by one, one ends of the support rods are hinged to the base, and the other ends of the support rods extend into the support grooves.
According to the carbon dioxide phase-change fracturing pressure testing device, the heating tube is excited to emit a large amount of heat in a short time, liquid carbon dioxide absorbs heat and changes phase into a supercritical state, and when the pressure in the inner cavity of the liquid storage tube exceeds the breaking pressure of the constant-pressure shear slice, the carbon dioxide rushes out of the phase to become high-pressure gas; the pressure sensor is used for transmitting the acquired pressure value to the data acquisition and processing system at any time, so that the explosion venting pressure of the carbon dioxide phase-change fracturing device under the vertical working condition can be effectively tested, the carbon dioxide phase-change explosion venting pressure time course curves at different positions and the carbon dioxide phase-change explosion venting pressure along course distribution curves at different moments can be obtained, and the method has important significance for researching the point type energy gathering effect of the carbon dioxide phase-change fracturing technology.
Drawings
FIG. 1 is a schematic diagram of a carbon dioxide phase transition fracturing pressure test device according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1-1.
1-a base; 11-mounting screw holes; 2-a sleeve; 21-an air vent; 211-wire netting; 22-fixing threaded holes; 23-supporting grooves; 3-carbon dioxide phase transition fracturing device; 31-a filling head; 32-a liquid storage tube; 33-heating tubes; 34-shearing and slicing under constant pressure; 35-energy release head; 351-energy release port; 4-filling; 5-a data acquisition and processing system; 6-a fixing mechanism; 61-bolts; 7-a mounting mechanism; 71-mounting a screw; 72-supporting rods; 8-pressure sensor.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the carbon dioxide phase transition fracturing pressure testing device comprises a base 1; the sleeve 2 is vertically arranged on the base 1, the top end of the sleeve 2 is open, the inner wall of the sleeve 2 is provided with a plurality of pressure sensors 8, and the lower end of the sleeve 2 is provided with a gas leakage hole 21; the carbon dioxide phase-change fracturing device 3 is vertically arranged in the sleeve 2, a gap is formed between the carbon dioxide phase-change fracturing device 3 and the inner side wall of the sleeve 2, and the gap is filled with a filler 4; the energy release hole 351 of the carbon dioxide phase transition fracturing device 3 is positioned below the air release hole 21; the data acquisition and processing system 5, the data acquisition and processing system 5 is electrically connected with the pressure sensor 8.
According to the carbon dioxide phase-change fracturing pressure testing device, the heating tube 33 is excited to emit a large amount of heat in a short time, liquid carbon dioxide absorbs heat and changes phase into a supercritical state, and when the pressure in the inner cavity of the liquid storage tube 32 exceeds the breaking pressure of the constant pressure shear slice 34, the carbon dioxide rushes out of the phase to become high-pressure gas; the high-pressure gas punched by the phase change impacts the pressure sensor 8, and the pressure sensor 8 transmits the acquired pressure value to the data acquisition and processing system 5 at any time. The carbon dioxide phase-change explosion venting pressure under the vertical working condition of the carbon dioxide phase-change fracturing device 3 can be effectively tested, carbon dioxide phase-change explosion venting pressure time course curves at different positions and carbon dioxide phase-change explosion venting pressure along-course distribution curves at different times can be obtained, and the method has important significance for researching the point type energy gathering effect of the carbon dioxide phase-change fracturing technology.
A certain gap is kept between the carbon dioxide phase-change fracturing device 3 and the sleeve 2, so as to simulate the uncoupled state between the carbon dioxide phase-change fracturing device 3 and the drill hole.
The leakage hole 21 may be provided with a wire mesh 211 to prevent the filler 4 from leaking therethrough. The filler 4 is not blown out from the air release hole 21 while ensuring the air flow to be smooth. Wherein the filler 4 can be clay stemming and other materials. The gas release hole 21 is used for simulating the pressure reduction process when the gas is wedged into the rock mass when the carbon dioxide phase changes to crack the rock mass, and can effectively represent the pressure dissipation process of the high-pressure gas generated by the carbon dioxide phase changes in the rock breaking process.
The plurality of pressure sensors 8 are arranged along the axial direction of the sleeve 2 and the circumferential inner wall at intervals, the pressure sensors 8 arranged along the axial direction of the sleeve 2 are arranged on the same straight line at equal intervals, the pressure sensors 8 arranged along the circumferential inner wall at intervals are on the same horizontal plane, and at least 4 pressure sensors 8 on the same horizontal plane are arranged. The pressure sensors 8 are arranged on the horizontal plane, and the data collected by the pressure sensors 8 at different positions of the horizontal plane can effectively compare the pressure differences at different positions of the same section in the point type energy gathering blasting process.
Wherein the pressure sensor 8 may be a PVDF pressure sensor or a high range piezoresistive sensor.
The horizontal plane where the energy release port 351 is located is also provided with a plurality of pressure sensors 8 which are arranged at intervals along the circumferential inner wall of the sleeve, and at least two pressure sensors 8 correspond to the energy release port 351. Ensuring that the high-pressure carbon dioxide phase change cracking gas can directly impact the two pressure sensors 8 to accurately obtain pressure data;
the carbon dioxide phase change fracturing device 3 comprises a filling head 31, a liquid storage tube 32, a heating tube 33, a constant pressure shear slice 34 and an energy release head 35; the liquid storage tube 32 is vertically arranged in the sleeve 2, the filling head 31 is arranged at the top end of the liquid storage tube 32, the energy discharging head 35 is detachably arranged at the bottom end of the liquid storage tube 32, the constant pressure shear slice 34 can be arranged at the bottom end of the liquid storage tube 32, and the heating tube 33 is arranged in the liquid storage tube 32 and is used for heating liquid carbon dioxide in the liquid storage tube 32; the energy discharging port 351 is provided on the energy discharging head 35. The two energy discharging ports 351 may be provided, and may be provided on both sides of the energy discharging head 35, respectively, and the two pressure sensors 8 correspond to the energy discharging ports 351 on both sides, respectively.
The carbon dioxide phase transition fracturing device 3 can be vertically arranged in the sleeve 2 in a detachable mode through the fixing mechanism 6.
The fixing mechanism 6 has various structures, but not limited to this, in this embodiment, the fixing mechanism 6 may include a plurality of bolts 61, and the side wall of the sleeve 2 is provided with a plurality of fixing threaded holes 22 along the axial direction thereof at intervals, the bolts 61 are in one-to-one correspondence with the fixing threaded holes 22, and one end of each bolt 61 passes through the fixing threaded hole 22 to abut against the outer wall of the liquid storage tube 32. For further fixation stabilization, a groove may be provided in the outer wall of the liquid storage tube, without penetrating the outer wall of the liquid storage tube, into which one end of the bolt 61 is inserted through the fixation screw hole 22. The arrangement positions of the plurality of bolts 61 may be various, and are not limited herein, for example: the position provided for the bolt 61 may be on four straight lines along the axis thereof, the four straight lines being provided at both ends of the two perpendicular straight surfaces, respectively.
The sleeve 2 can be arranged on the base 1 in a detachable and vertical manner by means of a mounting mechanism 7.
The structure of the mounting mechanism 7 is not limited herein, and in this embodiment, the mounting mechanism 7 may include a mounting screw 71 fixedly disposed at the bottom end of the sleeve 2, and the base 1 is provided with a mounting screw hole 11, and the mounting screw 71 is screwed in the mounting screw hole 11.
The mounting mechanism 7 may further include at least two support rods 72, at least two support grooves 23 are formed in the outer wall of the sleeve 2, the support grooves 23 are in one-to-one correspondence with the support rods 72, one end of each support rod 72 is hinged to the base 1, and the other end of each support rod extends into each support groove 23. The carbon dioxide phase-change fracturing device 3 and the non-cover thick-wall steel sleeve 2 can be perpendicular to the base 1 during test, the condition that the carbon dioxide phase-change fracturing device 3 is vertically arranged in a drill hole is effectively simulated, and the carbon dioxide phase-change fracturing device 3 is kept in a vertical stable state during test.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the foregoing examples are provided for the purpose of illustration only and are not intended to limit the scope of the invention, and that various modifications or additions and substitutions to the described specific embodiments may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the accompanying claims. It should be understood by those skilled in the art that any modification, equivalent substitution, improvement, etc. made to the above embodiments according to the technical substance of the present invention should be included in the scope of protection of the present invention.
Claims (6)
1. The utility model provides a carbon dioxide phase transition fracturing pressure testing arrangement which characterized in that: comprising
A base (1);
the sleeve (2) is vertically arranged on the base (1), the top end of the sleeve (2) is open, a plurality of pressure sensors (8) are arranged on the inner wall of the sleeve (2), and an air leakage hole (21) is formed in the side wall of the lower end of the sleeve (2);
the carbon dioxide phase change fracturing device (3), the carbon dioxide phase change fracturing device (3) is vertically arranged in the sleeve (2), a gap is formed between the carbon dioxide phase change fracturing device (3) and the inner side wall of the sleeve (2), and a filler (4) is filled in the gap; the energy release port (351) of the carbon dioxide phase transition fracturing device (3) is positioned below the air release hole (21);
the data acquisition and processing system (5), the data acquisition and processing system (5) is electrically connected with the pressure sensor (8);
the air leakage hole (21) is provided with a wire netting (211) for preventing the filler (4) from leaking out;
the carbon dioxide phase change fracturing device (3) comprises a filling head (31), a liquid storage pipe (32), a heating pipe (33), a constant pressure shearing slice (34) and an energy release head (35); the liquid storage tube (32) is vertically arranged in the sleeve (2), the filling head (31) is arranged at the top end of the liquid storage tube (32), the energy discharging head (35) is detachably arranged at the bottom end of the liquid storage tube (32), the constant pressure shear slice (34) is arranged at the bottom end of the liquid storage tube (32), and the heating tube (33) is arranged in the liquid storage tube (32) and used for heating liquid carbon dioxide in the liquid storage tube (32); the energy discharging port (351) is arranged on the energy discharging head (35);
the sleeve (2) is detachably and vertically arranged on the base (1) through a mounting mechanism (7);
the pressure sensors (8) are arranged along the axial direction of the sleeve (2) and the interval of the circumferential inner wall, the pressure sensors (8) arranged along the axial direction of the sleeve (2) are arranged on the same straight line at equal intervals, the pressure sensors (8) arranged along the interval of the circumferential inner wall are arranged on the same horizontal plane, and at least 4 pressure sensors (8) on the same horizontal plane are arranged.
2. The carbon dioxide phase transition fracturing pressure test device of claim 1, wherein: the horizontal plane where the energy release opening (351) is located is also provided with a plurality of pressure sensors (8) which are arranged along the inner wall of the circumference at intervals, and at least two pressure sensors (8) are corresponding to the energy release opening (351).
3. The carbon dioxide phase transition fracturing pressure test device of claim 1, wherein: the carbon dioxide phase transition fracturing device (3) is detachably and vertically arranged in the sleeve (2) through the fixing mechanism (6).
4. A carbon dioxide phase transition fracturing pressure test apparatus as claimed in claim 3, wherein: the fixing mechanism (6) comprises a plurality of bolts (61), a plurality of fixing threaded holes (22) are formed in the side wall of the sleeve (2) at intervals along the axial direction of the sleeve, the bolts (61) correspond to the fixing threaded holes (22) one by one, and one end of each bolt (61) penetrates through each fixing threaded hole (22) to abut against the outer wall of the liquid storage tube (32).
5. A carbon dioxide phase transition fracturing pressure test apparatus according to any one of claims 1-3, wherein: the mounting mechanism (7) comprises a mounting screw (71) fixedly arranged at the bottom end of the sleeve (2), a mounting screw hole (11) is formed in the base (1), and the mounting screw (71) is screwed in the mounting screw hole (11).
6. The carbon dioxide phase transition fracturing pressure test device of claim 5, wherein: the mounting mechanism (7) further comprises at least two support rods (72), at least two support grooves (23) are formed in the outer wall of the sleeve (2), the support grooves (23) correspond to the support rods (72) one by one, one ends of the support rods (72) are hinged to the base (1), and the other ends of the support rods extend into the support grooves (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441216.4A CN110261019B (en) | 2019-05-24 | 2019-05-24 | Carbon dioxide phase transition fracturing pressure testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441216.4A CN110261019B (en) | 2019-05-24 | 2019-05-24 | Carbon dioxide phase transition fracturing pressure testing device |
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| Publication Number | Publication Date |
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| CN110261019A CN110261019A (en) | 2019-09-20 |
| CN110261019B true CN110261019B (en) | 2024-04-02 |
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| CN201910441216.4A Active CN110261019B (en) | 2019-05-24 | 2019-05-24 | Carbon dioxide phase transition fracturing pressure testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111442868B (en) * | 2020-03-27 | 2021-06-08 | 西北核技术研究院 | Sensor lateral installation protection device for explosion test |
| CN111537432B (en) * | 2020-04-29 | 2021-06-04 | 重庆大学 | Liquid CO2Phase change cracking power testing device and testing method |
| CN111579579B (en) * | 2020-05-26 | 2024-04-16 | 中国地质大学（武汉） | Multipoint omnibearing CO 2 Phase-change fracturing pressure time-course curve testing system and method |
| CN113310657B (en) * | 2021-05-26 | 2022-09-02 | 北京中煤矿山工程有限公司 | Device and method for measuring pressure relief capacity of carbon dioxide fracturing device in rock mass or coal mass |
| CN113310658B (en) * | 2021-05-27 | 2022-08-05 | 北京中煤矿山工程有限公司 | Pressure measuring device and method for carbon dioxide fracturing device |
| CN113639596B (en) * | 2021-07-21 | 2022-11-01 | 北京科技大学 | System and method for testing bursting pressure and effect of carbon dioxide fracturing device |
| CN113701805B (en) * | 2021-08-11 | 2022-07-19 | 中国地质大学（武汉） | System and method for testing internal temperature and internal pressure and external overpressure of carbon dioxide cracking tube |
| CN115452302A (en) * | 2022-10-11 | 2022-12-09 | 中煤科工集团重庆研究院有限公司 | Dynamic performance testing device for high-energy gas cracking device |
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| CN106769551A (en) * | 2016-12-28 | 2017-05-31 | 中南大学 | The fracturing pressure measuring unit and method of a kind of carbon dioxide fracturing device |
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| CN210071193U (en) * | 2019-05-24 | 2020-02-14 | 中国地质大学（武汉） | Carbon dioxide phase change fracturing pressure testing device |
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2019
- 2019-05-24 CN CN201910441216.4A patent/CN110261019B/en active Active
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| CN105510384A (en) * | 2016-01-27 | 2016-04-20 | 北京理工大学 | Supercritical carbon dioxide explosion monitoring device |
| CN106769551A (en) * | 2016-12-28 | 2017-05-31 | 中南大学 | The fracturing pressure measuring unit and method of a kind of carbon dioxide fracturing device |
| CN206439041U (en) * | 2017-01-17 | 2017-08-25 | 山西工程技术学院 | A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing |
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