CN205982015U - Rock fracture seepage flow parameter testing device under high temperature high pressure condition - Google Patents
Rock fracture seepage flow parameter testing device under high temperature high pressure condition Download PDFInfo
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- CN205982015U CN205982015U CN201620720146.8U CN201620720146U CN205982015U CN 205982015 U CN205982015 U CN 205982015U CN 201620720146 U CN201620720146 U CN 201620720146U CN 205982015 U CN205982015 U CN 205982015U
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Abstract
The utility model provides a rock fracture seepage flow parameter testing device under high temperature high pressure condition includes the testing machine frame at least, install testing machine triaxial jar and pressure head system in the testing machine frame, the pressure head system comprises last pressure head and lower pressure head, is cylindric sample and places in last pressure head under and between the pressure head, upward pressure head and lower pressure head are installed and are exerted pressure to the sample on testing machine triaxial jar and under it drives, push down overhead seepage flow blasthole and the infiltration inlet tube of being provided with, upward be provided with seepage flow apopore and infiltration outlet pipe on the pressure head, be connected with defeated oil pipe on the testing machine triaxial jar, the other end of infiltration inlet tube, infiltration outlet pipe all is connected with consolidation control system, and defeated oil pipe's the other end is connected with confined pressure control system. The utility model provides a not enough among the prior art, provide one kind satisfy carry out permeability test and can test porous flow process under the high temperature high pressure in heat exchange efficiency's device and method, the exploitation has important meaning to geothermol power.
Description
Technical field
This utility model provides a kind of device for testing rock fracture seepage parameters, and more particularly, to one kind is used for
Infiltration coefficient under the conditions of specified temp, confined pressure for the subterranean body and the isoparametric dress of permeability is tested under high-temperature and high-pressure conditions
Put, belong to machinery technical field.
Background technology
Geothermal energy resources are a kind of typical clean energy resource, also referred to as " green energy resource " and " the renewable energy energy ", have
Huge value.Enhancement mode geothermal system (EGS) is passed through to inject cold water, using the spy of underground deep layer temperature near constant
Property, make temperature of cold water rises, and it is extracted out from underground, thus obtaining high-temperature water or vapor, in order to generate electricity.The infiltration of subterranean body
Heat exchange efficiency in property and flow event is the key factor of the efficiency determining that geothermal energy resources utilize, and is also enhancement mode ground simultaneously
The important parameter that hot systems detail design is relied on.
In enhancement mode geothermal system detail design, if the fracture seepage characteristic understanding to rock is insufficient, can not
Determine the optimal seepage plan of deep layer crack rock, carry out under certain depth specified temp during hydrofracturing to hydraulic pressure
And the selection of proppant will lack foundation, construction will be difficult to.And the heat exchange efficiency in flow event is then directly connected to
The economical and practical problem of enhancement mode geothermal system exploitation, during the operation of enhancement mode geothermal system, if not knowing about Penetration Signature,
Mistake can estimate crack rock penetration property, have a strong impact on the efficiency of underground heat exploitation, the creation of value of engineering generating institute may be led to
Far smaller than early investment and the maintenance cost day after tomorrow.Hydrofracturing is the previous work of enhancement mode geothermal system construction it is necessary to fill
Divide and understand that this region contains seepage characteristic under the High Temperature High Pressure of local environment for the fissure rock and heat exchange efficiency, just can be constructed
Design work, seepage characteristic includes infiltration coefficient and permeability under specified temp, confined pressure, further analysis heat exchange effect
Rate.
Existing rock fracture seepage parameters characteristic test method is general all manually to be made using improved Brazil split the law
Make crack, then carry out seepage characteristic test under low-pressure state again, carry out the calculating of permeability parameters by Darcy's law, and do not have
There are the relevant apparatus of the heat exchange efficiency in test flow event.
It is inadequate for only carrying out testing under low voltage situations under many circumstances.In the engineerings such as deep earth heart exploitation, need
Under high confining pressure state, artificial seepage flow is carried out to crack rock injection cold water, and to extract hot water, thus obtaining geothermal energy resources.Cause
This needs the fissure permeability matter of the High temperature rocks to deep to study.And current instrument is once carried out under High Temperature High Pressure
Permeability test, the sealing of instrument will be destroyed.In enhancement mode geothermal system, the heat exchange efficiency in flow event is the most
Crucial factor, current instrument does not have relevant apparatus it is impossible to test relevant parameter.
Existing rock fracture seepage characteristic test Patents mainly have：China Mining University develop " it is contemplated that many because
The rock fill crack permeability method of testing of element impact and device " patent No. CN105403498A；University Of Science and Technology Of Hunan develops
" a kind of test method produced with seepage apparatus and seepage characteristic of rock fracture " patent No. CN105388098A；Wuhan is big
Learn " a kind of crack shearing-seepage coupling test system the being applied to triaxial cell and test method " patent No. developed
CN105203411A；" the coal measure strata fracture seepage simulation test device under a kind of plus unloading condition that Xi'an Technology University develops
And method " patent No. CN104458534A；" a kind of Fracture Networks rock shearing-seepage flow coupling reality that Beijing University of Technology develops
Proved recipe method " patent No. CN103954511A；" visible multifunctional fracture seepage simulation test bench " that China Mining University develops
Patent No. CN101871876A；" seepage test device for rock crack " that Wuhan Inst. of Rock and Soil Mechanics, Chinese Academy of Sciences develops is specially
Profit CN1425906A etc..
Above utility model patent major part is only applicable to low-pressure state it is impossible to realize realizing under conditions of High Temperature High Pressure
Precise control to crack, and all do not test the means of heat exchange efficiency.And China Mining University " it is contemplated that multifactor shadow
Ring rock fill crack permeability method of testing and device " be only applicable to the fracture seepage containing charges test it is impossible to
The penetration property of unfilling fracture is tested.
Content of the invention
This utility model solves deficiency of the prior art, for the infiltration under the High Temperature High Pressure of enhancement mode geothermal system
Test requirements document, improves to MTS rock mechanics experiment machine, so have developed one kind meet carry out under High Temperature High Pressure infiltration examination
Test and can test the device of the heat exchange efficiency in flow event, underground heat exploitation is had great significance.
Realizing the technical scheme that this utility model above-mentioned purpose adopted is：
Rock fracture seepage parameters test device under a kind of high-temperature and high-pressure conditions, at least includes testing machine frame, described examination
Test and testing machine three axle cylinder and pressurized head systems are installed in machine frame, pressurized head systems are made up of seaming chuck and push-down head, cylindrical
Sample be positioned between seaming chuck and push-down head, the junction latex film phonograph seal of seaming chuck, push-down head and sample, sample
Outer wrap has heat-shrink tube, and the two ends of heat-shrink tube are respectively fitted on seaming chuck and push-down head, and two ends are all sealed using insulating tape
Mouthful；
Described seaming chuck and push-down head are installed on testing machine three axle cylinder and under its drive, sample are pressed；Described push
It is provided with seepage flow blasthole on head, seaming chuck is provided with seepage flow water outlet hole, seepage flow blasthole is connected with infiltration water inlet pipe, oozes
Flow out and be connected with infiltration outlet pipe on water hole, testing machine three axle cylinder is connected with petroleum pipeline, described infiltration water inlet pipe, infiltration water outlet
The other end of pipe is all connected with osmotic pressure control system, and the other end of petroleum pipeline is connected with confined pressure control system, described osmotic pressure control
System processed passes through to permeate water inlet pipe and infiltration outlet pipe controls the hydraulic pressure of sample upper and lower ends, forms permeable pressure head；Described encloses
Pressure control system passes through the applying pressure to sample for the petroleum pipeline Control experiment machine three axle cylinder.
It is fixed with the sheet metal for resisting confined pressure using transparent adhesive tape at the crack of described sample.
It is provided with temperature measurer, temperature measurer passes through data wire and data processing on described infiltration water inlet pipe and infiltration outlet pipe
Record system connects, and described data handling recording system includes computer and display, and data handling recording system is also by number
It is connected with osmotic pressure control system and confined pressure control system according to line.
It is additionally provided with sample splitting device, described sample splitting device includes spherical contact member, plinth and arc
Shape cleaves pressure head, and plinth and arc splitting pressure head are provided with upper and lower two, and upper and lower two arcs splitting pressure head is all solid
In upper and lower two plinths, and upper and lower two arcs cleave the arc indent opening of pressure head relatively, and sample is fixed on
At lower two arc indent openings, spherical contact member is located at the top of plinth.
A diameter of 50mm of described sample, the height of sample is 100mm.
The utility model proposes a kind of dress at high temperature under high pressure rock fracture seepage flow and heat exchange efficiency tested
Put.It solves the problems, such as cannot test permeability parameters and the heat exchange efficiency of crack rock in prior art at high temperature under high pressure.
The method by installing the sheet metal of two panels high intensity at sample crack additional for this method, resists confined pressure, prevents pyrocondensation tracheal rupture, protects
Demonstrate,prove the intact of sealing.And sealing part use the method steel plate such as latex film, sealing ring, insulating tape it is ensured that confined pressure and
Osmotic pressure is not revealed, and is tested using the thermometer exchange thermal efficiency at the import and export water pipe of osmosis system.With prior art
Compare, this utility model has advantages below：1st, this utility model provides reliably interior for analysis rock fracture seepage characteristic
Test method, provides reliable test to support for enhancement mode geothermal system detail design；2. provide quantitative analysis to evaluate high temperature
The means of rock permeability parameters and heat exchange efficiency in fracture seepage under condition of high voltage.3. method of testing is accurately careful, and data is accurate
Really.
Brief description
The structural representation of the rock fracture seepage parameters test device that Fig. 1 provides for this utility model；
Fig. 2 is the structural representation of sample splitting device；
Fig. 3 cleaves the structural representation of pressure head for arc；
Fig. 4 is the structural representation of sample and seaming chuck, push-down head；
In figure：1- data handling recording system, 2- osmotic pressure control system, 3- confined pressure control system, 4- tests machine frame, 5-
Testing machine three axle cylinder, 6- sample, 7- seaming chuck, 8- infiltration water inlet pipe, 9- infiltration outlet pipe, 10- petroleum pipeline, 11- push-down head,
12- seepage flow blasthole, 13- seepage flow water outlet hole, 14- spherical contact member, 15- plinth, 16- arc cleaves pressure head.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment does detailed specific description to this utility model, but of the present utility model
Protection domain is not limited to following examples.
The structure of the rock fracture seepage parameters test device that the present embodiment provides is as shown in figure 1, at least include testing machine
Framework 4, is provided with testing machine three axle cylinder 5 and pressurized head systems in described test machine frame 4, pressurized head systems by seaming chuck 7 and push
11 compositions, cylindrical sample 6 is positioned between seaming chuck 7 and push-down head 11, and its structure is as shown in Figure 4.Seaming chuck, under
Pressure head and the junction latex film phonograph seal of sample, are fixed with the metal for resisting confined pressure using transparent adhesive tape at the crack of sample
Piece, the outer wrap of sample has heat-shrink tube, and the two ends of heat-shrink tube are respectively fitted on seaming chuck and push-down head, and two ends are all using absolutely
Edge tape seal.
Described seaming chuck 7 and push-down head 11 are installed on testing machine three axle cylinder 5 and under its drive, sample are pressed；Described
Seepage flow blasthole 12 is provided with push-down head 11, seaming chuck 7 is provided with seepage flow water outlet hole 13, seepage flow blasthole 12 is connected with
Infiltration water inlet pipe 8, seepage flow water outlet hole 13 is connected with infiltration outlet pipe 9, testing machine three axle cylinder 5 is connected with petroleum pipeline 10, institute
State infiltration water inlet pipe 8, the other end of infiltration outlet pipe 9 is all connected with osmotic pressure control system 2, the other end of petroleum pipeline 10 and confined pressure
Control system 3 connects, and described osmotic pressure control system passes through to permeate water inlet pipe and infiltration outlet pipe controls sample upper and lower ends
Hydraulic pressure, forms permeable pressure head；Described confined pressure control system passes through the applying pressure to sample for the petroleum pipeline Control experiment machine three axle cylinder
Power.
It is provided with temperature measurer, temperature measurer passes through at data wire and data on described infiltration water inlet pipe 8 and infiltration outlet pipe 9
Reason record system 1 connects, and described data handling recording system 1 includes computer and display, and data handling recording system 1 is also logical
Cross data wire to be connected with osmotic pressure control system 2 and confined pressure control system 3.
A diameter of 50mm of the sample 6 employed in the present embodiment, the height of sample is 100mm.The preparation of sample adopts
Sample splitting device, the structure of described sample splitting device as shown in Fig. 2 include spherical contact member 14, plinth 15 with
And arc cleaves pressure head 16, plinth 15 and arc splitting pressure head 16 are provided with upper and lower two, and upper and lower two arcs are split
Split pressure head 16 to be both secured in upper and lower two plinths 15, arc cleaves the structure of pressure head as shown in figure 3, upper and lower two arcs
Relatively, sample is fixed at upper and lower two arc indent openings the arc indent opening of splitting pressure head, and spherical contact member is located at
The top of plinth.
The using method of the rock fracture seepage parameters test device that the present embodiment is provided is as follows：(1), will according to test
Ask and the rock sample sample containing crack is made by sample splitting device, manufacture the crack of a through diameter in the sample；
(2), by sample setup between seaming chuck and push-down head, and use in the junction of seaming chuck, push-down head and sample
Latex film phonograph seal, fixes sheet metal with transparent adhesive tape at the crack of sample, for resisting confined pressure, prevents outside pyrocondensation tracheal rupture；
Then wrapped with heat-shrink tube and one section of heat-shrink tube is respectively reserved on sample, and the seaming chuck in upper and lower ends and push-down head so that close
Envelope；After being heated heat-shrink tube by hot hair dryer, the junction being enclosed within seaming chuck, push-down head and sample with sealing ring is close further
Envelope；The last two ends insulating tape in heat-shrink tube seals；
(3) sample after, finishing sealing and seaming chuck, push-down head are placed on testing machine three axle cylinder, and according to infiltration
Infiltration water inlet pipe and infiltration outlet pipe, petroleum pipeline are installed in test requirements document；Close testing machine three axle cylinder, and pass through confined pressure control system
Inject oil into three axle cylinders, and add confined pressure to the oil in three axle cylinders；
(4), open the water route of seaming chuck and push-down head by osmotic pressure control system, and add initial head, close sample
The water route of lower end, pins the head of lower end, then reduces the head of sample upper end to predetermined value；Open seepage flow switch, permeated
Test；With infra-red thermometer, intake-outlet temperature is measured in permeability test is carried out；
(5), derive Various types of data, processed, be calculated permeability parameters and heat transfer rate.
Claims (1)
1. rock fracture seepage parameters test device under a kind of high-temperature and high-pressure conditions, at least includes testing machine frame, its feature exists
In：Testing machine three axle cylinder and pressurized head systems are installed in described test machine frame, pressurized head systems are made up of seaming chuck and push-down head,
Cylindrical sample is positioned between seaming chuck and push-down head, and the junction of seaming chuck, push-down head and sample is close with latex film
Envelope, the outer wrap of sample has heat-shrink tube, and the two ends of heat-shrink tube are respectively fitted on seaming chuck and push-down head, and two ends are all using absolutely
Edge tape seal；It is fixed with the sheet metal for resisting confined pressure using transparent adhesive tape at the crack of described sample；
Described seaming chuck and push-down head are installed on testing machine three axle cylinder and under its drive, sample are pressed；On described push-down head
It is provided with seepage flow blasthole, seaming chuck is provided with seepage flow water outlet hole, seepage flow blasthole is connected with infiltration water inlet pipe, seepage flow goes out
Infiltration outlet pipe is connected with water hole, testing machine three axle cylinder is connected with petroleum pipeline, described infiltration water inlet pipe, infiltration outlet pipe
The other end is all connected with osmotic pressure control system, and the other end of petroleum pipeline is connected with confined pressure control system, and described osmotic pressure controls system
System controls the hydraulic pressure of sample upper and lower ends by permeating water inlet pipe and infiltration outlet pipe, forms permeable pressure head；Described confined pressure control
System processed passes through the applying pressure to sample for the petroleum pipeline Control experiment machine three axle cylinder；
It is provided with temperature measurer, temperature measurer passes through data wire and data processing record on described infiltration water inlet pipe and infiltration outlet pipe
System connects, and described data handling recording system includes computer and display, and data handling recording system is also by data wire
It is connected with osmotic pressure control system and confined pressure control system；
Be additionally provided with sample splitting device in this device, described sample splitting device include spherical contact member, plinth with
And arc cleaves pressure head, plinth and arc splitting pressure head are provided with upper and lower two, and upper and lower two arcs cleave pressure head
It is both secured in upper and lower two plinths, and upper and lower two arcs cleave the arc indent opening of pressure head relatively, sample is fixed
At upper and lower two arc indent openings, spherical contact member is located at the top of plinth；Described sample a diameter of
50mm, the height of sample is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720146.8U CN205982015U (en) | 2016-07-08 | 2016-07-08 | Rock fracture seepage flow parameter testing device under high temperature high pressure condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720146.8U CN205982015U (en) | 2016-07-08 | 2016-07-08 | Rock fracture seepage flow parameter testing device under high temperature high pressure condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205982015U true CN205982015U (en) | 2017-02-22 |
Family
ID=58023170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620720146.8U Expired - Fee Related CN205982015U (en) | 2016-07-08 | 2016-07-08 | Rock fracture seepage flow parameter testing device under high temperature high pressure condition |
Country Status (1)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928859A (en) * | 2016-07-08 | 2016-09-07 | 中国地质大学（武汉） | Device and method for testing rock fracture seepage parameters under high temperature and high pressure conditions |
| CN107036882A (en) * | 2017-03-29 | 2017-08-11 | 东北大学 | A kind of hydrostatic pressure load test small size column rock sample sealing device and method |
| CN107764631A (en) * | 2017-10-23 | 2018-03-06 | 中国矿业大学 | A kind of the sealing pressure head and test method of the ordinary triaxial test of the rock of cuboid containing prefabricated crack |
| CN108693047A (en) * | 2018-03-29 | 2018-10-23 | 大连理工大学 | A kind of sealing device of rock fracture shearing Seepage Experiment |
| CN110296927A (en) * | 2019-07-18 | 2019-10-01 | 南京理工大学 | A kind of rock fracture permeability test device and method applying unidirectional confining pressure |
| CN111879814A (en) * | 2020-07-31 | 2020-11-03 | 武汉大学 | Experimental device and system for water-heat transfer mechanism of fractured rock mass |
-
2016
- 2016-07-08 CN CN201620720146.8U patent/CN205982015U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928859A (en) * | 2016-07-08 | 2016-09-07 | 中国地质大学（武汉） | Device and method for testing rock fracture seepage parameters under high temperature and high pressure conditions |
| CN107036882A (en) * | 2017-03-29 | 2017-08-11 | 东北大学 | A kind of hydrostatic pressure load test small size column rock sample sealing device and method |
| CN107764631A (en) * | 2017-10-23 | 2018-03-06 | 中国矿业大学 | A kind of the sealing pressure head and test method of the ordinary triaxial test of the rock of cuboid containing prefabricated crack |
| CN107764631B (en) * | 2017-10-23 | 2019-04-05 | 中国矿业大学 | A kind of the sealing pressure head and test method of the ordinary triaxial test of the rock of cuboid containing prefabricated crack |
| CN108693047A (en) * | 2018-03-29 | 2018-10-23 | 大连理工大学 | A kind of sealing device of rock fracture shearing Seepage Experiment |
| CN110296927A (en) * | 2019-07-18 | 2019-10-01 | 南京理工大学 | A kind of rock fracture permeability test device and method applying unidirectional confining pressure |
| CN111879814A (en) * | 2020-07-31 | 2020-11-03 | 武汉大学 | Experimental device and system for water-heat transfer mechanism of fractured rock mass |
| CN111879814B (en) * | 2020-07-31 | 2023-08-22 | 武汉大学 | Fracture rock mass hydrothermal transmission mechanism experimental device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20170708 |