CN106198342A - Quickly measure the hydraulic pressure succusion pilot system of hypotonic rock permeability parameter - Google Patents
Quickly measure the hydraulic pressure succusion pilot system of hypotonic rock permeability parameter Download PDFInfo
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- 239000011435 rock Substances 0.000 title claims abstract description 54
- 230000035699 permeability Effects 0.000 title claims abstract description 43
- 230000010355 oscillation Effects 0.000 claims abstract description 48
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 238000001764 infiltration Methods 0.000 claims abstract description 25
- 230000008595 infiltration Effects 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000003921 oil Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000009919 sequestration Effects 0.000 claims description 3
- 238000009375 geological disposal Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract 1
- 238000003556 assay Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 2
- 241001061225 Arcos Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009877 rendering Methods 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
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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Abstract
The invention discloses the hydraulic pressure succusion pilot system of a kind of quick measurement hypotonic rock permeability parameter, it includes confined pressure servomechanism installation, hydraulic pressure oscillation device, sample permeability apparatus and data acquisition processing device, wherein: confined pressure servomechanism installation is connected with wave of oscillation exciter (10), the data acquisition processing device of hydraulic pressure oscillation device by the entrance point of its first high-precision hydraulic pump, and the first high-precision hydraulic delivery side of pump end is connected with the pressure chamber (24) of sample permeability apparatus through the second hydraulic valve of confined pressure servomechanism installation.The present invention can complete hypotonic rock infiltration coefficient and testing experiment of built-up factor under different confined pressures, and test time-consumingly only needs 5～10min, and the certainty of measurement of permeability of low-leakage stone can as little as 10‑16～10‑23m2, process of the test is simple to operate, the shortest, precision is high, reliable results, and can intuitively show.
Description
Technical field
The invention belongs to Seepage of Rock Masses and seepage-pipe coupling model technical field, particularly to being applicable to different confined pressure condition
The lower hydraulic pressure succusion assay device quickly measuring hypotonic rock permeability parameter and test method.
Background technology
Hypotonic rock permeability (infiltration coefficient and water storage coefficient) measures at shale gas exploitation, underground water-seal oil depot, underground heat
Development of resources, carbon dioxide sequestration and height are put the rock mechanics engineering fields such as Surrounding Nuclear Waste Repositories disposal and are all had quite varied answering
By value.Although the method for rock permeability parameter determination is a lot of at present, such as laboratory test, on-the-spot test, monitor feedback etc., but pin
Generally there is test in the technology such as mensuration, the in-situ test of Rock And Soil permeability tensor and the feedback analysis to hypotonic rock permeability coefficient
The outstanding problems such as cycle length, achievement reliability and representativeness difference, the most remote for the experimental study of tight rock
Can meet far away engineering construction and security evaluation demand, the most economic, to determine Rock And Soil quickly and accurately permeability parameters is section
Grind and one of engineers and technicians' key technical problem needing solution.
The indoor test of rock permeability is that the one that application at present is the most universal and technology is the most ripe obtains rock seepage flow
According to test principle, the means of parameter, can be divided into that steady-state flow is mensuration, transient pulse technique and hydraulic pressure succusion three kinds.Its
In, steady state method is mensuration also known as flow measurement, is the most universal permeability test method of Rock And Soil, and the method has theory and tested
The simple advantage of journey, but it is applicable to the rock that permeability is high more；Transient pulse technique transient pulse technique becomes because it is theoretical
Ripe, certainty of measurement is high and is widely used in the infiltration coefficient test of hypotonic rock, but the method can not realize different stress shape
The continuous measurement of rock permeability under state, and the infiltration coefficient of rock can only be measured；Hydraulic pressure succusion is except certainty of measurement height
Outward, maximum advantage is time-consumingly only to need a few minutes and can realize the most uninterrupted measurement of rock permeability coefficient, moreover it is possible to simultaneously
Measuring the water storage coefficient of rock, but the acquisition precision of assay device is required the highest by the method, the most domestic not yet possess out
The hydraulic pressure succusion assay device that under the conditions of the different confined pressure of exhibition, hypotonic rock permeability parameter is quickly measured.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of hydraulic pressure being applicable to quickly measure hypotonic rock permeability parameter
Succusion pilot system, and give the test method of this system.
The present invention solves its technical problem and uses following technical scheme:
The hydraulic pressure succusion pilot system quickly measuring hypotonic rock permeability parameter that the present invention provides, it includes that confined pressure is watched
Clothing are put, hydraulic pressure oscillation device, sample permeability apparatus and data acquisition processing device, wherein: confined pressure servomechanism installation passes through it
The entrance point of the first high-precision hydraulic pump is connected with the wave of oscillation exciter of hydraulic pressure oscillation device, data acquisition processing device, the
One high-precision hydraulic delivery side of pump end is connected with the pressure chamber of sample permeability apparatus through the second hydraulic valve of confined pressure servomechanism installation.
Described confined pressure servomechanism installation, by pressure-oil tank, the first hydraulic valve, the first high-precision hydraulic pump, the first safety
Sheet, the second hydraulic valve, confined pressure sensor form, wherein: one end of pressure-oil tank and the first hydraulic valve is connected；First hydraulic pressure
The other end of valve is connected with the second hydraulic valve, confined pressure sensor respectively；First high-precision hydraulic pump, the first safety disc,
Two hydraulic valves, confined pressure sensor are sequentially connected.
Described hydraulic pressure oscillation device, by water tank, the 3rd hydraulic valve, waste liquid collection vessel, wave of oscillation exciter, second
High-precision hydraulic pump, the second safety disc, the 4th hydraulic valve, entrance point hydraulic pressure sensor, the 5th hydraulic valve, port of export hydraulic pressure
Sensor, the 6th hydraulic valve, High Precision Automatic electronics balance form, wherein: water tank and the 3rd hydraulic valve are sequentially connected, and shake
Swing wave-exciting device, the second high-precision hydraulic pump, the second safety disc are sequentially connected；Described 4th hydraulic valve, its one end respectively with
3rd hydraulic valve, the second safety disc connect, its other end, entrance point hydraulic pressure sensor, the 5th hydraulic valve, port of export hydraulic pressure
Sensor, the 6th hydraulic valve, High Precision Automatic electronics balance are sequentially connected.
Described sample permeability apparatus, by triaxial cell and a support component, sample black box and infiltration connecting pipe
Composition.
Described triaxial cell and support component by support, pressure chamber, the 7th hydraulic valve, the 8th hydraulic valve, the
Nine hydraulic valve compositions；Described pressure chamber is fixed on support by fastening bolt；7th hydraulic valve, the 9th hydraulic valve are with high
Force feed case is connected, and keeps the recycling of hydraulic oil；One end of 8th hydraulic valve is connected with the 9th hydraulic valve, the 8th hydraulic pressure
The other end of valve is connected with air.
Described sample black box, the hydraulic oil isolation in sample with pressure chamber, this sample black box is by close
Seal, rubber case, sample, infiltration piston composition, wherein；Sample is sequentially connected with infiltration piston, by rubber case parcel oil absolutely, and
Airtight by sealing ring.
Described data acquisition processing device, is made up of computer, and this computer is swashed with the wave of oscillation respectively by data wire
The input of the first high-precision hydraulic pump sending out the input of device, confined pressure servomechanism installation is joined directly together.
The above-mentioned hydraulic pressure succusion pilot system quickly measuring hypotonic rock permeability parameter that the present invention provides, it is at 0-
Shale gas exploitation, underground water-seal oil depot, Development of Geothermal Resources, carbon dioxide sequestration or Gao Fanghe is measured under the conditions of 100MPa confined pressure
The application of the infiltration coefficient of hypotonic rock in waste material geological disposal.
Described hypotonic rock permeability is parametric includes infiltration coefficient and water storage coefficient.
Hydraulic pressure succusion pilot system of the present invention can excite sine, cosine, rectangle and four kinds of continuous waves of sawtooth, by
Test sample inlet end applies the hydraulic pressure wave of oscillation excited, and propagates, in sample outlet termination test sample, the hydraulic pressure waveform of coming；Pass through
Test sample inlet end, port of export hydraulic pressure wave of oscillation wave amplitude and the change of phase place, it is thus achieved that the infiltration coefficient of rock sample and water storage coefficient.
The present invention compared with prior art has a following major advantage:
1. can complete hypotonic rock infiltration coefficient and testing experiment of built-up factor under different confined pressures:
The test of hypotonic rock permeability parameter under the conditions of being capable of 0-100MPa confined pressure, its core component hydraulic pressure vibrates
Device can excite sine, cosine, rectangle and four kinds of continuous waves of sawtooth, is vibrated by the hydraulic pressure applying to excite at test sample inlet end
Ripple, propagates, in sample outlet termination test sample, the hydraulic pressure waveform of coming.
2. test is the shortest, and certainty of measurement is high.
Solve the mensuration acquisition not being suitable for hypotonic rock permeability parameter of steady-state flow, transient pulse technique testing time
Needing time-consuming 1h～24h, the certainty of measurement of rock permeability is 10-18～10-22m2, it is impossible to obtain outside rock permeability other
The problem of seepage parameters.Capture different Under Confining Pressure permeability as little as 10-16～10-23m2In range ability, rock oozes
The quick high accuracy of characteristic obtains problem thoroughly, by the change of import and export end hydraulic pressure wave of oscillation wave amplitude Yu phase place, can obtain rock
The infiltration coefficient of sample and water storage coefficient.
With similar Permeation Test System contrast both at home and abroad, test the shortest, it is only necessary to 5～10min, and measuring accuracy reaches state
The similar achievement level in border.
The most simple to operate, the shortest, precision is high, reliable results, and can intuitively show.
The most practical:
Can exploit at shale gas, fine and close oil and gas reservoir, high-level waste underground disposal storehouse country rock testing permeability and seepage flow
The aspects such as parameter acquiring are with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is the hydraulic pressure succusion assay device schematic diagram of hypotonic rock permeability parameter.
Fig. 2 is that hypotonic rock sample seals schematic diagram.
Fig. 3 is the sinusoidal hydraulic pressure wave of oscillation.
Fig. 4 is the cosine-shaped hydraulic pressure wave of oscillation.
Fig. 5 is the rectangle hydraulic pressure wave of oscillation.
Fig. 6 is the zigzag hydraulic pressure wave of oscillation.
Fig. 7 is entrance end hydraulic pressure wave of oscillation waveform deformation schematic diagram.
In figure: 1. pressure-oil tank；2. the first hydraulic valve；3. the first high-precision hydraulic pump；4. the first safety disc；5. second
Hydraulic valve；6. confined pressure sensor；7. water tank；8. the 3rd hydraulic valve；9. waste liquid collection vessel；10. wave of oscillation exciter；
11. second high-precision hydraulic pumps；12. second safety discs；13. the 4th hydraulic valves；14. entrance point hydraulic pressure sensors；15. the 5th
Hydraulic valve；16. port of export hydraulic pressure sensors；17. the 6th hydraulic valves；18. High Precision Automatic electronics balances；19. sealing rings；
20. rubber cases；21. samples；22. infiltration pistons；23. supports；24. pressure chamberes；25. fastening bolts；26. the 7th hydraulic valves；
27. the 8th hydraulic valves；28. the 9th hydraulic valves.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described, but does not limit the present invention.
The hydraulic pressure succusion pilot system quickly measuring hypotonic rock permeability parameter that the present invention provides (is hereinafter referred to as
System), its structure is as it is shown in figure 1, include at confined pressure servomechanism installation, hydraulic pressure oscillation device, sample permeability apparatus and data acquisition
Reason device, wherein: confined pressure servomechanism installation is by the wave of oscillation of the entrance point of its first high-precision hydraulic pump 3 with hydraulic pressure oscillation device
Exciter 10, data acquisition processing device are connected, and the port of export of the first high-precision hydraulic pump 3 is through the second liquid of confined pressure servomechanism installation
Pressure valve 5 is connected with the pressure chamber 24 of sample permeability apparatus.
Described confined pressure servomechanism installation, is contained in system upper left side, for hypotonic rock sample is applied 0-100MPa confined pressure,
So that process of the test applies predetermined confined pressure value to rock sample.In the structure of this confined pressure servomechanism installation such as Fig. 1, dotted line frame is 1.
Shown in: by pressure-oil tank the 1, first hydraulic valve the 2, first high-precision hydraulic pump the 3, first safety disc the 4, second hydraulic valve 5, enclose
Pressure sensor 6 forms, wherein: pressure-oil tank 1 is connected with one end of the first hydraulic valve 2；The other end of the first hydraulic valve 2 divides
It is not connected with the second hydraulic valve 5, confined pressure sensor 6；First high-precision hydraulic pump the 3, first safety disc the 4, second hydraulic valve
5, confined pressure sensor 6 is sequentially connected.
The first described high-precision hydraulic pump 3, can use the PHMP 50-1000 type of TOP INDUSTRIE company of France
Hydraulic servo pump.
The first described safety disc 4, can use the 402633-60 high-pressure overflow valve of HIP company of the U.S..
Described confined pressure sensor 6, can use the PX409 pressure transducer of OMEGA company of the U.S..
Described hydraulic pressure oscillation device, is contained in system lower left, is used for exciting sine, cosine, rectangle and four kinds of companies of sawtooth
Continuous waveform, is applied the hydraulic pressure wave of oscillation excited, leads at sample outlet end by the second high-precision hydraulic pump 11 at test sample inlet end
Excess pressure sensor accepts sample and propagates the hydraulic pressure waveform of coming.In the structure of this hydraulic pressure oscillation device such as Fig. 1, dotted line frame is 2.
Shown in: by water tank 7, the 3rd hydraulic valve 8, waste liquid collection vessel 9, wave of oscillation exciter the 10, second high-precision hydraulic pump 11, the
Two safety disc the 12, the 4th hydraulic valves 13, entrance point hydraulic pressure sensor the 14, the 5th hydraulic valve 15, port of export hydraulic pressure sensor
16, the 6th hydraulic valve 17, High Precision Automatic electronics balance 18 form, wherein: water tank 7 is sequentially connected with the 3rd hydraulic valve 8,
Wave of oscillation exciter the 10, second high-precision hydraulic pump the 11, second safety disc 12 is sequentially connected；Described 4th hydraulic valve 13, its
One end is connected with the 3rd hydraulic valve the 8, second safety disc 12 respectively, its other end, entrance point hydraulic pressure sensor the 14, the 5th hydraulic pressure
Valve 15, port of export hydraulic pressure sensor the 16, the 6th hydraulic valve 17, High Precision Automatic electronics balance 18 are sequentially connected.
Described wave of oscillation exciter 10, can use S-520/S-520A, S-524/S-of PMP ARCOS company of Finland
The hydraulic vibration wave-exciting devices such as 524A, S-571.
The second described high-precision hydraulic pump 11, can use the PHMP 50-1000 of TOP INDUSTRIE company of France
Type hydraulic servo pump.
The second described safety disc 12, can use the 402633-60 high-pressure overflow valve of HIP company of the U.S..
Described entrance point hydraulic pressure sensor 14 and port of export hydraulic pressure sensor 16, all can use OMEGA company of the U.S.
PX409 pressure transducer.
Described High Precision Automatic electronics balance 18, can use the BT4202S electronics sky of Sartorius company of Germany
Flat, for permeating the measurement of port of export flow.
Described sample permeability apparatus, is contained in system upper right side, oozes for carrying out the hydraulic pressure vibration of rock under different confined pressure
Test thoroughly.In the structure of this sample permeability apparatus such as Fig. 1 dotted line frame 3. shown in, close by triaxial cell and support component, sample
Sealing assembly and infiltration connecting pipe composition, wherein: triaxial cell and a support component are by support 23, pressure chamber 24, fastening bolt
25, the 7th hydraulic valve the 26, the 8th hydraulic valve the 27, the 9th hydraulic valve 28 forms；Described pressure chamber 24 is by fastening bolt 25
It is fixed on support 23；7th hydraulic valve the 26, the 9th hydraulic valve 28 is connected with pressure-oil tank 1, keeps the circulation of hydraulic oil
Use；One end of 8th hydraulic valve 27 is connected with the 9th hydraulic valve 28, the other end of the 8th hydraulic valve 27 and big gas phase
Even.Described sample black box, the hydraulic oil isolation in sample with pressure chamber 24, this sample black box is by sealing ring
19, rubber case 20, sample 21, infiltration piston 22 form, wherein；Sample 21 is sequentially connected, by rubber case 20 with infiltration piston 22
Parcel oil absolutely, and airtight by sealing ring 19.
Described data acquisition processing device, the system left comer of being contained in falls, for Real-time Collection rock sample import and export end
Hydraulic pressure waveform, real-time rendering hydraulic pressure-time graph, and according to import and export end hydraulic pressure wave of oscillation wave amplitude and the change of phase place
Automatically calculate infiltration coefficient and the water storage coefficient of rock sample, store and show.The knot of this data acquisition processing device
In structure such as Fig. 1 dotted line frame 4. shown in: be made up of computer 29, this computer by data wire respectively with the of confined pressure servomechanism installation
The input of one high-precision hydraulic pump 3, the input of wave of oscillation exciter 10 of hydraulic pressure oscillation device are joined directly together.
The above-mentioned parts related to, it is also possible to select other parts with type and function according to practical situation.
The hydraulic pressure succusion assay device quickly measuring hypotonic rock permeability parameter that the present invention provides, its work process is such as
Under:
Step 1, dress sample seals:
By φ 50mm × 100mm standard cylinder rock sample, toast 24 hours continuously in 105 ° of baking ovens, then very
Cold in empty cooling tower put 24 hours.Put into sample normal-temperature water is soaked and carry out nature and satisfy water, be first filled to sample during full water high
Degree 1/4, two as a child after be filled to again sample 1/2 at, adding water at 3/4 specimen height after two hours, 6 hours
Rear submergence sample, soaks 48 hours, makes sample fully satisfy water.Rubber sleeve 20 can be put into afterwards and fill sample, in order to ensure to fill sample
Sealing, dress sample is concrete as shown in Figure 2.
Step 2, applying confined pressure:
Close the second hydraulic valve the 5, the 7th hydraulic valve the 26, the 8th hydraulic valve 27 successively, open first the most successively
Hydraulic valve the 2, the 9th hydraulic valve 28, to pressure chamber 24 topping up force feed, to drive the air inside pressure chamber 24.Hydraulic oil leads to
Piping loop returns to pressure-oil tank 1, illustrates that pressure chamber 24 fills with, and closes the 9th hydraulic valve 28, first the most according to this
Hydraulic valve 2.Open the first high-precision hydraulic pump 3, open the second hydraulic valve 5, apply confined pressure and pass through to predetermined value, confined pressure value
Confined pressure sensor 6 Real-time Collection.
Step 3, excites the hydraulic pressure wave of oscillation:
Close the 4th hydraulic valve 13, open the 3rd hydraulic valve 8, to the second high-precision hydraulic pump 11 water-filling, treat second
After high-precision hydraulic pump 11 is full of, closes the 3rd hydraulic valve 8, the 5th hydraulic valve 15, the 6th hydraulic valve 17, open the
Four hydraulic valves 13, send hydraulic pressure wave of oscillation excitation waveform, wave amplitude and cycle by wave of oscillation exciter 10, and the hydraulic pressure excited shakes
Swing ripple and be applied to sample 21 entrance point by the second high-precision hydraulic pump 11, excited by entrance point hydraulic pressure sensor 14 record
Waveform, port of export hydraulic pressure sensor 16 records the waveform that sample 21 transmission comes simultaneously, and this pilot system just can excite
String, cosine, rectangle and four kinds of continuous waves of sawtooth, the hydraulic pressure wave of oscillation excited is as shown in Fig. 3～Fig. 6.
Step 4, sample permeates:
The hydraulic pressure wave of oscillation that entrance point excites enters into sample 21 by entrance point infiltration piston 22, and sample 21 is by rubber case
20 wrap up and pass through sealing ring 19 sealing and pressure chamber 24 oil absolutely, and the hydraulic pressure wave of oscillation passes through sample 21 and is delivered to port of export hydraulic pressure biography
Sensor 16.While sample 21 permeates, confined pressure can be applied continuously by the first high-precision hydraulic pump 3, thus realize difference and enclose
The infiltrative continuous measurement of rock sample 21 under the conditions of pressure.Data are stored and show by computer 29 in real time, according to into and out of
Mouth end wave amplitude and the change (as shown in Figure 7) of phase place, can calculate infiltration coefficient and the water storage coefficient of rock sample 21.
Step 5, release tears sample open:
Close the 4th hydraulic valve 13, open the 3rd hydraulic valve the 8, the 5th hydraulic valve the 15, the 6th hydraulic valve 17, unload
Except vibration hydraulic pressure is to pipeline residual value, during removal, the water yield of the port of export is measured by High Precision Automatic electronics balance 18；Unload
Except closing the second hydraulic valve 2 after confined pressure to pipeline residual value, opening the 7th hydraulic valve the 26, the 8th hydraulic valve 27, discharge
Hydraulic oil in pressure chamber 24, closes hydraulic valve the 8th hydraulic valve 27 after oil emptying, opens pressure chamber 24 by rock sample 21
Remove, test complete.
In described Fig. 3 to Fig. 7, the implication of each symbol respectively: p. seepage water pressure；T. time of penetration；A. excite shakes
Swing wave amplitude；T. the wave of oscillation cycle excited；AU. the wave of oscillation amplitude that entrance point excites；AD. the vibration wave amplitude that the port of export accepts
Value；θ. import and export end wave of oscillation phase contrast.
Claims (10)
1. a hydraulic pressure succusion pilot system for quick measurement hypotonic rock permeability parameter, is characterized in that including that confined pressure servo fills
Put, hydraulic pressure oscillation device, sample permeability apparatus and data acquisition processing device, wherein: confined pressure servomechanism installation by its first
The entrance point of high-precision hydraulic pump is connected with wave of oscillation exciter (10), the data acquisition processing device of hydraulic pressure oscillation device, the
The one high-precision hydraulic delivery side of pump end the second hydraulic valve through confined pressure servomechanism installation and the pressure chamber (24) of sample permeability apparatus
It is connected.
Hydraulic pressure succusion pilot system the most according to claim 1, it is characterised in that described confined pressure servomechanism installation, by height
Force feed case (1), the first hydraulic valve, the first high-precision hydraulic pump, the first safety disc, the second hydraulic valve, confined pressure sensor (6)
Composition, wherein: pressure-oil tank (1) is connected with one end of the first hydraulic valve；The other end of the first hydraulic valve is respectively with second
Hydraulic valve, confined pressure sensor (6) are connected；First high-precision hydraulic pump, the first safety disc, the second hydraulic valve, confined pressure sense
Device (6) is sequentially connected.
Hydraulic pressure succusion pilot system the most according to claim 1, it is characterised in that described hydraulic pressure oscillation device, by water
Case (7), the 3rd hydraulic valve, waste liquid collection vessel (9), wave of oscillation exciter (10), the second high-precision hydraulic pump, the second safety
Sheet, the 4th hydraulic valve, entrance point hydraulic pressure sensor (14), the 5th hydraulic valve, port of export hydraulic pressure sensor (16), the 6th liquid
Pressure valve, High Precision Automatic electronics balance (18) form, and wherein: water tank (7) is sequentially connected with the 3rd hydraulic valve, the wave of oscillation swashs
Send out device (10), the second high-precision hydraulic pump, the second safety disc are sequentially connected；Described 4th hydraulic valve, its one end is respectively with
Three hydraulic valves, the second safety disc connect, its other end, entrance point hydraulic pressure sensor (14), the 5th hydraulic valve, port of export water
Pressure sensor (16), the 6th hydraulic valve, High Precision Automatic electronics balance (18) are sequentially connected.
Hydraulic pressure succusion pilot system the most according to claim 1, it is characterised in that described sample permeability apparatus, by three
Axial pressure room and a support component, sample black box and infiltration connecting pipe composition.
Hydraulic pressure succusion pilot system the most according to claim 4, it is characterised in that described triaxial cell and support
Assembly is by support (23), pressure chamber (24), the 7th hydraulic valve (26), the 8th hydraulic valve (27), the 9th hydraulic valve (28)
Composition；Described pressure chamber (24) is fixed on support (23) by fastening bolt (25)；7th hydraulic valve (26), the 9th hydraulic valve
Door (28) is connected with pressure-oil tank (1), keeps the recycling of hydraulic oil；One end of 8th hydraulic valve (27) and the 9th hydraulic pressure
Valve (28) is connected, and the other end of the 8th hydraulic valve (27) is connected with air.
Hydraulic pressure succusion pilot system the most according to claim 4, it is characterised in that described sample black box, is used for
Sample and the hydraulic oil isolation in pressure chamber (24), this sample black box is by sealing ring (19), rubber case (20), sample
(21), infiltration piston (22) forms, wherein；Sample (21) is sequentially connected with infiltration piston (22), by rubber case (20) parcel absolutely
Oil, and airtight by sealing ring (19).
Hydraulic pressure succusion pilot system the most according to claim 1, it is characterised in that described data acquisition processing device,
Being made up of computer (29), this computer passes through data wire input, confined pressure servo respectively with wave of oscillation exciter (10) and fills
The input of the first high-precision hydraulic pump (3) put is joined directly together.
8., according to the purposes of described hydraulic pressure succusion pilot system arbitrary in claim 1 to 7, it is characterized in that this system is at 0-
Shale gas exploitation, underground water-seal oil depot, Development of Geothermal Resources, carbon dioxide sequestration or Gao Fanghe is measured under the conditions of 100MPa confined pressure
The application of the infiltration coefficient of hypotonic rock in waste material geological disposal.
Purposes the most according to claim 8, it is characterised in that described hypotonic rock permeability is parametric includes infiltration coefficient
With water storage coefficient.
Purposes the most according to claim 8, it is characterised in that this system can excite sine, cosine, rectangle and four kinds of sawtooth
Continuous wave, by the hydraulic pressure wave of oscillation applying to excite at test sample inlet end, propagates, in sample outlet termination test sample, the water of coming
Pressure waveform；By test sample inlet end, port of export hydraulic pressure wave of oscillation wave amplitude and the change of phase place, it is thus achieved that the infiltration of rock sample
Coefficient and water storage coefficient.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610486971.0A CN106198342A (en) | 2016-06-28 | 2016-06-28 | Quickly measure the hydraulic pressure succusion pilot system of hypotonic rock permeability parameter |
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| CN201610486971.0A CN106198342A (en) | 2016-06-28 | 2016-06-28 | Quickly measure the hydraulic pressure succusion pilot system of hypotonic rock permeability parameter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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