CN113218985B - Nuclear magnetic resonance triaxial experiment high-pressure-to-high-temperature device and operation method thereof - Google Patents
Nuclear magnetic resonance triaxial experiment high-pressure-to-high-temperature device and operation method thereof Download PDFInfo
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- 238000005481 NMR spectroscopy Methods 0.000 title claims abstract description 27
- 238000002474 experimental method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000012546 transfer Methods 0.000 claims abstract description 24
- 239000011435 rock Substances 0.000 claims abstract description 19
- 239000011148 porous material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims abstract description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 7
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000007602 hot air drying Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 9
- 230000003247 decreasing effect Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004742 high temperature nuclear magnetic resonance Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
- G01N24/081—Making measurements of geologic samples, e.g. measurements of moisture, pH, porosity, permeability, tortuosity or viscosity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/023—Pressure
- G01N2203/0232—High pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a high-pressure variable high-temperature device for a nuclear magnetic resonance triaxial experiment, which comprises a heat transfer pipe, wherein a piston pipe is arranged in the heat transfer pipe, a sample object is movably plugged in the piston pipe, two ends of the sample object are provided with sample gaskets, the outer side of each sample gasket is provided with a fixed end, a spiral temperature control pipe which is distributed from compact to loose is wrapped outside the piston pipe, a temperature control medium capable of circularly flowing is arranged in the spiral temperature control pipe, two ends of the piston pipe are respectively provided with a first fluorinated liquid pipe and a second fluorinated liquid pipe which are communicated with the piston pipe, a pressure pump which enables fluorinated liquid to circularly move in the piston pipe is connected to the first fluorinated liquid pipe, and two ends of the piston pipe are also provided with displacement pipes which can be used for displacing pore water and air in the piston pipe. The invention also discloses an operation method for high-pressure change and high-temperature change of the nuclear magnetic resonance triaxial experiment. The invention can simulate the real condition of rock.
Description
Technical Field
The invention relates to the technical field of nuclear magnetic resonance triaxial experimental devices, in particular to a high-pressure variable high-temperature device for nuclear magnetic resonance triaxial experiments and an operation method thereof.
Background
Nuclear Magnetic Resonance (NMR) refers to a physical process in which non-zero magnetic moment nuclei undergo zeeman splitting of spin energy levels under the combined action of a static magnetic field and a radio frequency field, and the nuclei absorb radio frequency energy. The nuclear magnetic resonance technology has a very wide application range and covers various fields of biomedicine, chemistry, food, petroleum, materials and the like. In the aspect of porous medium analysis of materials, a sample is required to be subjected to a nuclear magnetic resonance triaxial experiment under high-temperature and high-pressure conditions, and a coil device is generally adopted for experimental detection in the nuclear magnetic resonance triaxial experiment.
However, in the existing nuclear magnetic resonance triaxial experiment, the coil device can only simulate the conditions of triaxial high pressure and high temperature in the rock stratum, but the conditions of the rock in the rock stratum are complex, and the heat conduction of the rock can cause uneven heating of the rock due to joint or crack, and the whole rock can be in a decreasing pattern, but the existing coil device can only simulate the condition of uniform heating of the rock, so that the actual conditions of various rocks cannot be simulated, and improvement is needed.
Disclosure of Invention
The invention aims to provide a high-voltage variable high-temperature device for a nuclear magnetic resonance triaxial experiment and an operation method thereof, so as to solve the problem that the real condition of rock cannot be simulated in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a nuclear magnetic resonance triaxial experiment high pressure becomes high temperature device, includes the heat transfer pipe, is provided with the signal transmission end that is used for transmitting nuclear magnetic signal to the computer in heat transfer pipe one side, is provided with the piston pipe in the heat transfer pipe, has the sample article at piston intraductal activity joint, the both ends of sample article are provided with the test piece gasket, are provided with the stiff end in the outside of every test piece gasket, wrap up outside the piston pipe by closely to loose spiral accuse temperature pipe that distributes, spiral accuse temperature pipe is the device that can let the sample article in the piston pipe receive the step by step, is provided with the accuse temperature medium that can circulate in spiral accuse temperature pipe, the both ends of piston pipe are provided with first fluoride liquid pipe and the second fluoride liquid pipe that communicates with the piston pipe respectively, are connected with the pressure pump that lets the fluoride liquid circulate in the piston pipe on first fluoride liquid pipe, still be provided with the displacement pipe that can be used for displacing pore water and air in the piston pipe at the both ends of piston pipe.
Further, guarantee the accuracy of detection, be provided with more than one first temperature sensor at the interval on spiral accuse temperature pipe, be provided with first pressure sensor in the piston pipe, be provided with second temperature sensor and second pressure sensor in the sample article.
In order to prevent the dissipation of temperature and play a certain heat preservation effect, a layer of heat insulation layer which isolates the spiral temperature control tube from the outside is arranged outside the heat transfer tube.
Further, the heat insulation effect is improved, and the heat insulation layer is filled with heat insulation medium.
In order to ensure that the sample object, the fixed end and the sample gasket form a sample unit when being uniformly stressed during uniaxial compression, a heat shrinkage tube is wrapped outside the sample unit, the heat shrinkage tube is wrapped outside the sample unit through a hot air drying heat shrinkage tube,
in order to facilitate the fixation, the two ends of the piston tube extend out of the heat transfer tube, and the two ends of the heat transfer tube are respectively fixed on the heat transfer tube through more than one fixing tube.
The invention also discloses an operation method for changing the high pressure into high temperature in the nuclear magnetic resonance triaxial experiment, which comprises the following steps:
s1, determining the size of a sample, finding a magnetic field uniform distribution interval as a sample area by measuring the magnetic field distribution of a nuclear magnetic machine, determining the size of the sample, determining the determined value as the size of a sample object, arranging sample gaskets at two ends of the sample object, and fixing the sample gaskets by using a fixed end respectively;
s2, actively plugging the sample object into a piston tube, opening a fluoride liquid tube at two ends to enable the fluoride liquid to fill the whole movable plug, connecting a pressure pump to one of the fluoride liquid tubes to enable the fluoride liquid to circulate, enabling the fluoride liquid to flow into the piston tube, heating the sample object through heat conduction of a heat insulation medium, and enabling pore water around the sample object to reach a saturated state and a semi-saturated state by applying pressure and the temperature control medium through the pressure pump; the horizontal movement of the sample object in the piston tube is guaranteed, the heating processes of different temperatures of different areas of the sample object are realized, and the effect that the rock mass in geology is gradually heated is finally simulated.
As the preference, guarantee the precision that detects, when installing the sample article in the piston pipe in step S1, need to debug the parameter, first temperature debugging, utilize the first temperature sensor real-time supervision spiral temperature control pipe' S of spiral temperature control pipe temperature data, and utilize the second temperature sensor to detect the temperature of sample article, then compare, whether the temperature is unanimous between them, utilize the pressure in the sample article of second pressure sensor detection simultaneously, utilize the pressure in the piston pipe of first pressure sensor detection, when the pressure is inconsistent, whether air or space exists in the detection of through opening the displacement pipe, guarantee that both pressures are unanimous.
Compared with the prior art, the invention has the following beneficial effects:
the high-pressure-to-high temperature device for the nuclear magnetic resonance triaxial experiment disclosed by the invention has the advantages that the overall structural layout is simple, meanwhile, the pressure is controlled by the piston tube with the axial pressure, the triaxial experiment is realized, the movable plugged sample object is arranged inside the triaxial experiment device, the spiral temperature control tube is arranged from compact to loose, different temperature effects can be obtained for simulating the condition of decreasing the heating, namely, the nuclear magnetic resonance coil under the condition of changing the triaxial high pressure into high temperature can be finally simulated, the complicated heating and compression conditions in a geological rock mass can be simulated, the condition of gradually decreasing the heating of the rock mass can be tested, and the real condition of the rock can be simulated.
The method for operating the nuclear magnetic resonance triaxial experiment at high pressure to high temperature is simpler in whole operation and more reasonable in detection precision.
Drawings
FIG. 1 is a schematic diagram of a high-pressure-to-high-temperature apparatus for a triaxial nuclear magnetic resonance experiment in example 1;
FIG. 2 is a schematic structural diagram of a high-pressure-to-high-temperature device for a triaxial nuclear magnetic resonance experiment in example 2;
fig. 3 is a schematic structural diagram of a sample unit in embodiment 3.
In the figure: the device comprises a heat transfer tube 1, a signal transmission end 2, a piston tube 3, a sample object 4, a sample gasket 5, a fixed end 6, a spiral temperature control tube 8, a first fluorinated liquid tube 9, a second fluorinated liquid tube 10, a pressure pump 11, a displacement tube 12, a first temperature sensor 13, a first pressure sensor 14, a second temperature sensor 15, a second pressure sensor 16, a heat insulation layer 17, a sample unit 18, a heat shrinkage tube 19 and a fixed tube 20.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1:
referring to fig. 1, an embodiment of the present invention is provided: the utility model provides a nuclear magnetic resonance triaxial experiment high pressure becomes high temperature device, includes heat transfer pipe 1, is provided with the signal transmission end 2 that is used for transmitting nuclear magnetic signal to the computer in heat transfer pipe 1 one side, is provided with piston tube 3 in heat transfer pipe 1, has the sample article 4 in piston tube 3 activity joint, the both ends of sample article 4 are provided with test piece gasket 5, are provided with stiff end 6 in the outside of each test piece gasket 5, wrap up outside piston tube 3 and have by closely to loose spiral temperature control tube 8 that distributes, spiral temperature control tube 8 is the device that can let the sample article 4 in the piston tube 3 receive heat progressively, is provided with the accuse temperature medium that can circulate in spiral temperature control tube 8, the both ends of piston tube 3 are provided with first fluoride liquid pipe 9 and second fluoride liquid pipe 10 with piston tube 3 intercommunication respectively, are connected with the pressure pump 11 that lets the fluoride liquid circulate in piston tube 3, still are provided with the displacement tube 12 that can be used for displacing pore water and air in piston tube 3 at piston tube 3's both ends.
For convenient fixation, the two ends of the piston tube 3 extend out of the heat transfer tube 1, and the two ends of the heat transfer tube 1 are respectively fixed on the heat transfer tube 1 through more than one fixing tube 20.
The structure is provided with the piston tube 3 for controlling pressure by axial pressure, so that triaxial experiments are realized, a movable plugged sample object 4 is arranged inside, the arrangement of the spiral temperature control tube 8 is compact to loose, different temperature effects can be obtained for simulating a condition of decreasing heating, namely, finally, a nuclear magnetic resonance coil under the condition of changing triaxial high pressure into high temperature can be simulated, the complex heating and compression conditions in geological rock mass can be simulated, and the condition of decreasing heating step by step of the experimental rock mass can be simulated so as to simulate the real rock condition.
The embodiment also discloses an operation method for high-pressure change and high-temperature change of the nuclear magnetic resonance triaxial experiment, which comprises the following steps:
s1, determining the size of a sample, finding a magnetic field uniform distribution interval as a sample area by measuring the magnetic field distribution of a nuclear magnetic machine, determining the size of the sample, determining the determined value as the size of a sample object 4, arranging sample gaskets at two ends of the sample object 4, and fixing the sample gaskets by using a fixed end 6 respectively;
s2, actively plugging the sample object 4 into the piston tube 3, opening the fluoride liquid tubes at two ends to enable the fluoride liquid to fill the whole movable plug, connecting a pressure pump 11 to one of the fluoride liquid tubes to enable the fluoride liquid to circulate, enabling the fluoride liquid to flow into the piston tube 3, heating the sample object 4 through heat conduction of a heat insulation medium, and applying pressure and a temperature control medium through the pressure pump 11 to displace pore water around the sample object 4 to enable the pore water to reach a saturated state and a semi-saturated state; the method ensures that the sample object 4 horizontally moves in the piston tube 3 to realize the heating processes of different temperatures of different areas of the sample object 4, finally imitates the effect that the rock mass in geology is gradually heated, and has simpler whole operation and more reasonable detection precision.
Example 2:
referring to fig. 2, an embodiment of the present invention is provided: further, the accuracy of detection is ensured, more than one first temperature sensor 13 is arranged on the spiral temperature control tube 8 at intervals, a first pressure sensor 14 is arranged in the piston tube 3, and a second temperature sensor 15 and a second pressure sensor 16 are arranged in the sample object 4.
In order to prevent the dissipation of temperature and play certain heat preservation effect, be provided with the one deck insulating layer 17 that keeps apart spiral temperature control pipe 8 and external world outside heat transfer pipe 1, can avoid the process heat dissipation of heating in the experiment through above-mentioned structure for the thermal field collides with the magnetic field and produces the problem emergence that the coupling effect influences the accuracy of data.
Further, the heat insulating effect is improved, and the heat insulating layer 17 is filled with a heat insulating medium.
The present embodiment also discloses a method for operating the high-pressure-to-high temperature nuclear magnetic resonance triaxial test, which is similar to that of embodiment 1, except that, as a preferred method, the accuracy of detection is ensured, when the sample object 4 is installed in the piston tube 3 in step S1, the parameter needs to be debugged, the temperature is debugged first, the temperature data of the spiral temperature control tube 8 is monitored in real time by using the first temperature sensor 13 of the spiral temperature control tube 8, the temperature of the sample object 4 is detected by using the second temperature sensor 15, then the temperature is compared, whether the temperatures are consistent or not, the pressure in the sample object 4 is detected by using the second pressure sensor 16, the pressure in the piston tube 3 is detected by using the first pressure sensor 14, and when the pressures are inconsistent, whether the air or the gap exists in the sample object is detected by opening the displacement tube 12, so that the pressure is consistent or not is ensured.
Example 3:
referring to fig. 3, an embodiment of the present invention is provided: in order to uniformly bear force during uniaxial compression, the sample object 4, the fixed end 6 and the sample gasket 5 form a sample unit 18, a heat shrinkage tube 19 is wrapped outside the sample unit 18, and the heat shrinkage tube 19 is wrapped outside the sample unit 18 through a hot air drying heat shrinkage tube 19.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. The high-pressure high-temperature operation method for the nuclear magnetic resonance triaxial experiment is characterized in that the high-pressure high-temperature operation device for the nuclear magnetic resonance triaxial experiment adopted by the operation method comprises a heat transfer pipe (1), a signal transmission end (2) for transmitting nuclear magnetic signals to a computer is arranged on one side of the heat transfer pipe (1), a piston pipe (3) is arranged in the heat transfer pipe (1), a sample object (4) is movably plugged in the piston pipe (3), test piece gaskets (5) are arranged at two ends of the sample object (4), a fixed end (6) is arranged at the outer side of each test piece gasket (5), a spiral temperature control pipe (8) which is tightly and loosely distributed is wrapped outside the piston pipe (3), the spiral temperature control pipe (8) is a device capable of enabling the sample object (4) in the piston pipe (3) to be heated gradually and gradually reduced, a temperature control medium capable of circularly flowing is arranged in the spiral temperature control pipe (8), a first fluorinated liquid pipe (9) and a second fluorinated liquid pipe (10) which are communicated with the piston pipe (3) are respectively arranged at two ends of the piston pipe (3), and a driving pump (12) is arranged at two ends of the piston pipe (3) and can be driven by air in the piston pipe (3);
more than one first temperature sensor (13) is arranged on the spiral temperature control tube (8) at intervals, a first pressure sensor (14) is arranged in the piston tube (3), and a second temperature sensor (15) and a second pressure sensor (16) are arranged in the sample object (4);
a heat insulation layer (17) for isolating the spiral temperature control tube (8) from the outside is arranged outside the heat transfer tube (1); a heat insulation medium is filled in the heat insulation layer (17);
the sample object (4), the fixed end (6) and the sample gasket (5) form a sample unit (18), a heat shrinkage tube (19) is wrapped outside the sample unit (18), and the heat shrinkage tube (19) is wrapped outside the sample unit (18) through a hot air drying heat shrinkage tube (19);
two ends of the piston tube (3) extend out of the heat transfer tube (1), and two ends of the heat transfer tube (1) are fixed on the heat transfer tube (1) through more than one fixing tube (20) respectively;
the operation method for high-pressure high-temperature change of the nuclear magnetic resonance triaxial experiment comprises the following steps:
s1, determining the size of a sample, finding a magnetic field uniform distribution interval as a sample area by measuring the magnetic field distribution of a nuclear magnetic machine, determining the size of the measured value as the size of a sample object (4), arranging sample gaskets at two ends of the sample object (4), and fixing the sample gaskets by using a fixed end (6) respectively;
s2, actively plugging the sample object (4) into the piston tube (3), opening the fluoride liquid tubes at two ends to enable the fluoride liquid to fill the whole movable plug, connecting a pressure pump (11) to one of the fluoride liquid tubes to enable the fluoride liquid to circulate, enabling the fluoride liquid to flow into the piston tube (3), heating the sample object (4) through heat conduction of a heat insulation medium, and applying pressure and the temperature control medium through the pressure pump (11) to displace pore water around the sample object (4) to enable the pore water to reach a saturated state and a semi-saturated state; the horizontal movement of the sample object (4) in the piston tube (3) is guaranteed, the heating processes of different temperatures of different areas of the sample object (4) are realized, and the effect that the rock mass in geology is gradually heated is finally simulated.
2. The method for operating the nuclear magnetic resonance triaxial experiment at high pressure and high temperature according to claim 1, characterized in that: when the sample object (4) is installed in the piston tube (3) in the step S1, parameters are required to be debugged, temperature debugging is firstly carried out, temperature data of the spiral temperature control tube (8) are monitored in real time by using a first temperature sensor (13) of the spiral temperature control tube (8), the temperature of the sample object (4) is detected by using a second temperature sensor (15), comparison is carried out, whether the temperature is consistent or not is carried out, meanwhile, the pressure in the sample object (4) is detected by using a second pressure sensor (16), the pressure in the piston tube (3) is detected by using a first pressure sensor (14), and when the pressure is inconsistent, whether air or a gap exists in the interior is detected by opening the displacement tube (12), so that the pressure consistency of the two is ensured.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599834A (en) * | 1991-06-04 | 1993-04-23 | Mitsubishi Materials Corp | Water penetration test device of rock sample |
| JP2006336435A (en) * | 2005-06-06 | 2006-12-14 | National Institute Of Advanced Industrial & Technology | Temperature gradient addition type core holder device and component output behavior time variation measuring method using the same |
| CN101376853A (en) * | 2008-09-09 | 2009-03-04 | 中国石油大学(北京) | Method and apparatus for simulating gas hydrate accumulation process under one-dimensional condition |
| CN105954495A (en) * | 2016-06-03 | 2016-09-21 | 中国石油大学(华东) | Stratum core holder |
| CN106324009A (en) * | 2015-07-06 | 2017-01-11 | 中国石油化工股份有限公司 | Core displacement test equipment and test method |
| CN106908470A (en) * | 2017-04-25 | 2017-06-30 | 北京青檬艾柯科技有限公司 | A kind of nuclear magnetic resonance HTHP rock displacement system and method |
| CN107703037A (en) * | 2017-08-30 | 2018-02-16 | 中国石油天然气股份有限公司 | For HTHP Natural Gas Migration And Accumulation visual detection device and method |
| CN108387712A (en) * | 2018-02-23 | 2018-08-10 | 山东科技大学 | A kind of coal petrography unidirectionally heated and bidirectional stress experimental system for simulating and method |
| CN208375861U (en) * | 2018-06-15 | 2019-01-15 | 温州金马文具用品制造有限公司 | A kind of no waste mine hot-runner device |
| CN109254028A (en) * | 2018-11-07 | 2019-01-22 | 苏州纽迈分析仪器股份有限公司 | Nuclear magnetic resonance test macro |
| WO2020009981A1 (en) * | 2018-07-02 | 2020-01-09 | Saudi Arabian Oil Company | Systems and methods for tri-axial nmr testing |
| CN112213345A (en) * | 2020-09-18 | 2021-01-12 | 中国石油大学(华东) | Nuclear magnetic resonance system and method for simulating high-temperature and high-pressure conditions |
| CN112415051A (en) * | 2020-11-21 | 2021-02-26 | 西安交通大学 | High-temperature heat pipe heat transfer performance and failure test experimental device |
| CN112505084A (en) * | 2020-11-30 | 2021-03-16 | 中国石油大学(华东) | Evaluation model, evaluation method and application for improving shale oil mobility through gas injection |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7567079B2 (en) * | 2007-06-08 | 2009-07-28 | University Of New Brunswick | Methods suitable for measuring capillary pressure and relative permeability curves of porous rocks |
| CN110118794B (en) * | 2019-05-29 | 2020-04-28 | 中国科学院地质与地球物理研究所 | High-temperature high-pressure nuclear magnetic resonance core holder |
-
2021
- 2021-05-10 CN CN202110505365.XA patent/CN113218985B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599834A (en) * | 1991-06-04 | 1993-04-23 | Mitsubishi Materials Corp | Water penetration test device of rock sample |
| JP2006336435A (en) * | 2005-06-06 | 2006-12-14 | National Institute Of Advanced Industrial & Technology | Temperature gradient addition type core holder device and component output behavior time variation measuring method using the same |
| CN101376853A (en) * | 2008-09-09 | 2009-03-04 | 中国石油大学(北京) | Method and apparatus for simulating gas hydrate accumulation process under one-dimensional condition |
| CN106324009A (en) * | 2015-07-06 | 2017-01-11 | 中国石油化工股份有限公司 | Core displacement test equipment and test method |
| CN105954495A (en) * | 2016-06-03 | 2016-09-21 | 中国石油大学(华东) | Stratum core holder |
| CN106908470A (en) * | 2017-04-25 | 2017-06-30 | 北京青檬艾柯科技有限公司 | A kind of nuclear magnetic resonance HTHP rock displacement system and method |
| CN107703037A (en) * | 2017-08-30 | 2018-02-16 | 中国石油天然气股份有限公司 | For HTHP Natural Gas Migration And Accumulation visual detection device and method |
| CN108387712A (en) * | 2018-02-23 | 2018-08-10 | 山东科技大学 | A kind of coal petrography unidirectionally heated and bidirectional stress experimental system for simulating and method |
| CN208375861U (en) * | 2018-06-15 | 2019-01-15 | 温州金马文具用品制造有限公司 | A kind of no waste mine hot-runner device |
| WO2020009981A1 (en) * | 2018-07-02 | 2020-01-09 | Saudi Arabian Oil Company | Systems and methods for tri-axial nmr testing |
| CN109254028A (en) * | 2018-11-07 | 2019-01-22 | 苏州纽迈分析仪器股份有限公司 | Nuclear magnetic resonance test macro |
| CN112213345A (en) * | 2020-09-18 | 2021-01-12 | 中国石油大学(华东) | Nuclear magnetic resonance system and method for simulating high-temperature and high-pressure conditions |
| CN112415051A (en) * | 2020-11-21 | 2021-02-26 | 西安交通大学 | High-temperature heat pipe heat transfer performance and failure test experimental device |
| CN112505084A (en) * | 2020-11-30 | 2021-03-16 | 中国石油大学(华东) | Evaluation model, evaluation method and application for improving shale oil mobility through gas injection |
Non-Patent Citations (3)
| Title |
|---|
| High pressure magnetic resonance imaging with metallic vessels;Hui Han 等;《Journal of Magnetic Resonance》;全文 * |
| 高温及三轴应力下花岗岩体力学特性的实验研究;万志军;赵阳升;董付科;冯子军;张宁;武晋文;;岩石力学与工程学报(第01期);全文 * |
| 高温高压岩石三轴(固体传压介质)实验装置;张流, 王绳祖, 王光根, 刘树山;地震地质(第01期);全文 * |
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