CN109297771A - Shale gas fast desorption test device - Google Patents
Shale gas fast desorption test device Download PDFInfo
- Publication number
- CN109297771A CN109297771A CN201811285823.8A CN201811285823A CN109297771A CN 109297771 A CN109297771 A CN 109297771A CN 201811285823 A CN201811285823 A CN 201811285823A CN 109297771 A CN109297771 A CN 109297771A
- Authority
- CN
- China
- Prior art keywords
- rock core
- shale gas
- sealing
- piston
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003795 desorption Methods 0.000 title claims abstract description 21
- 239000011435 rock Substances 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 238000000227 grinding Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000002386 leaching Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
Abstract
The invention discloses a kind of shale gas fast desorption test devices, including shale gas collection device (1), it seals room (2), rock core grinding device (3), driving device (4), rock core tank (5), water bath device (6) and support (7), support (7) support sealing room (1), support (7) center is equipped with driving device (4), sealing room (2) is provided with rock core grinding device (3), driving device (4) passes through magnetic drive rock core grinding device (3), rock core tank (5) is inserted into the mill section of rock core grinding device (3) at the top of sealing room (2), shale gas collection device (1) communication seals room (2), sealing room (2) leaching is set in water bath device (6).The invention has the advantages that shale core is processed into powder, the speed of shale desorption release shale gas is accelerated, while the shale gas released is sealed, test is quickly, accurately.
Description
Technical field
The invention belongs to a kind of new energy detection techniques, and in particular to a kind of experimental test for implementing shale gas fast desorption
Device is tested for shale gas air content.
Background technique
Accurate acquisition shale gas reservoir gas-bearing amount is most important to resource reserve and evaluating reservoir.Since shale is fine and close, big
In diameter core sample shale gas be difficult to desorption release, routine test can not accurate calculation shale gas reserves, how to implement shale
Gas fast desorption, test are problems of the existing technology.
Summary of the invention
For the problem that major diameter shale core shale gas desorption rate is slow, the technical problems to be solved by the invention are exactly
A kind of shale gas fast desorption test device is provided, it can implement shale gas fast desorption, improve the test of shale gas air content
Accuracy.
It is realized the technical problem to be solved by the present invention is to technical solution in this way, it includes that shale gas collects dress
It sets, seal room, rock core grinding device, driving device, rock core tank, water bath device and support, seat supports seal room, support center
Position is equipped with driving device, and sealing is indoor to be equipped with rock core grinding device, and driving device passes through magnetic drive rock core grinding device,
Rock core tank is inserted into the mill section of rock core grinding device from sealing ceiling portion, and shale gas collection device communication seals room seals room
Leaching is set in water bath device.
Driving device is rotated by the Moving plate of magnetic field power drive rock core grinding device, and shale core is from rock core tank indentation sealing
In indoor rock core grinding device, the desorption release shale gas after rock core grinding device is ground, shale gas is sealed in sealing room
It is interior, it is kept the temperature by water bath device, shale gas collection device, which is drawn, seals indoor shale gas progress gauge check.So the present invention will
Shale core is processed into powder, accelerates the speed of shale desorption release shale gas, while the shale gas released is sealed, and is surveyed
Examination is quickly, accurately.
Detailed description of the invention
Detailed description of the invention of the invention is as follows:
Fig. 1 is the structural diagram of the present invention；
Fig. 3 is main structure chart of the present invention；
Fig. 2 is the structural schematic diagram of shale gas collection device.
In figure: 1, shale gas collection device；2, room is sealed；3, rock core grinding device；4, driving device；5, rock core tank；6,
Water bath device；7, support；
11, vacuum gas tank；12, shutoff valve；13, burp valve；14, exhaust pipe；
21, seal casinghousing；22, price fixing；23, cover board；24, holddown spring；25, thin skin convex block；
31, Moving plate；32, strong magnetic cylinder；33, bearing；41, strong permanent magnets；42, motor；
51, piston rod；52, cover；53, piston spring；54, piston；55, tank body；
61, sink；62, heater.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
As shown in Figure 1, the present invention include shale gas collection device 1, sealing room 2, rock core grinding device 3, driving device 4, rock core
Tank 5, water bath device 6 and support 7, the support sealing of support 7 room 2,7 center of support is equipped with driving device 4, seals in room 2
Equipped with rock core grinding device 3, driving device 4 is inserted at the top of sealing room 2 by magnetic drive rock core grinding device 3, rock core tank 5
To the mill section of rock core grinding device 3,1 communication seals room 2 of shale gas collection device, the leaching of sealing room 2 is set in water bath device 6.
As shown in Fig. 2, the sealing room 2 includes that seal casinghousing 21, price fixing 22, cover board 23, holddown spring 24 and thin skin are convex
Block 25 has laid flat price fixing 22 in the inner cavity of seal casinghousing 21, and the outer and rock core tank that price fixing 22 is contacted with seal casinghousing inner wall are inserted
Entrance is equipped with sealing rubber ring, and the oral area of seal casinghousing 21 is stamped cover board 23, acts below cover board 23 equipped with holddown spring 24
On price fixing 22, capping has the thin skin convex block 25 being isolated from the outside world, 21 bottom surface of seal casinghousing at 21 bottom centre hole of seal casinghousing
Equipped with upward bearing mounting base.
It is therefore seen that sealing room 2 is a completely enclosed chamber.
As shown in Fig. 2, the rock core grinding device 3 includes Moving plate 31, strong magnetic cylinder 32 and bearing 33, bearing 33 is placed in close
In the bearing mounting base of 21 bottom surface of capsule body, 31 top surface of Moving plate and 22 bottom surface of price fixing are in close contact, 31 outer circle of Moving plate and sealing
21 inner wall of shell has the axle journal of insertion 33 inner ring of bearing there are spacing below Moving plate 31, axle journal inner cavity is equipped with strong magnetic cylinder 32, by force
There are gaps between 32 inner wall of power magnetic cylinder and 25 outer wall of thin skin convex block.
It follows that the Moving plate 31 of the price fixing 22 on upper layer and lower layer constitutes stone mill structure, Moving plate 31 on bearing 33 from
By rotating.
As shown in Fig. 2, the driving device 4 includes motor 42 and strong permanent magnets 41, motor 42 is mounted on 7 center of support
Position, strong permanent magnets 41 are equipped on 42 output shaft of motor, and strong permanent magnets 41 put in the thin skin convex block inside strong magnetic cylinder 32
25 recessed portions, and with 25 recess walls retention gap of thin skin convex block.
Motor 42 drives strong permanent magnets 41 to rotate, and has magneticaction between strong permanent magnets 41 and strong magnetic cylinder 32, by force
Power magnetic cylinder 32 follows rotation, and Moving plate 31 is driven to rotate.
As shown in Fig. 2, the rock core tank 5 includes piston rod 51, cover 52, piston spring 53, piston 54 and tank body 55, tank
Lid 52 is tightened on 55 top opening of tank body, and piston rod 51 and piston 54 weld, and piston 54 is sealed by O-ring seal and 55 inner wall of tank body
Cooperation, piston rod 51 stretch out 52 top surface of cover, and the piston end on piston rod 51 is cased with piston spring 53, and piston spring 53 is located at tank
Between lid 52 and piston 54, tank body 55 passes through cover board 23 and the insertion sealing of price fixing 22 is indoor, and 55 lower port of tank body is close to Moving plate 31
Top surface.
Shale core is from the rock core grinding device 3 in 5 indentation sealing room 2 of rock core tank as a result, through rock core grinding device 3
Desorption release shale gas after grinding, shale gas are sealed in sealing room 2.
As shown in figure 3, the shale gas collection device 1 includes vacuum gas tank 11 and exhaust pipe 14, vacuum gas tank 11 is exported
Exhaust pipe 14,14 communication seals room 2 of gas exhaust piping are connected, exhaust pipe 14 is equipped with shutoff valve 12 and burp valve 13.
Shale gas collection device 1 is used to extract the shale gas in sealing room 2.
As shown in Figure 1, the water bath device 6 includes sink 61 and heater 62, sink 61 surrounds sealing room 2, sink 61
Heater 62 of the bottom equipped with heating water temperature.Water bath device 6 is that sealing room 2 provides constant temperature.
Use process of the invention is: firstly, by the built-in full water of thermostatic water bath, and heater makes water-bath reach setting
Temperature.Then, shale samples to be tested will be needed using loading rock core tank after plastic sealing bag fast sealing, and be put into work rapidly
It fills in and tightens rock core cover；By the burp valve connection vacuum pump at exhaust outlet and sealing room is carried out vacuumizing behaviour
Make, after sealing room reaches vacuum level requirements, close burp valve, remove vacuum pump adapter and connect upper vacuum gas tank, beats
Shutoff valve and burp valve are opened, vacuum gas tank and sealing room connection are made.
Motor, the rotation of motor driven strong permanent magnets are opened, strong permanent magnets establish magnetic force with strong magnetic cylinder and contact, by force
Power magnetic cylinder follows rotation, drives Moving plate rotation.The shale samples of test are continuous under the turning effort of Moving plate and the promotion of piston
It is ground into powder, and under the assistance of the water bath device of high temperature, the gas in shale samples desorbs rapidly and is full of entire sealing room
In vacuum gas tank, the fast desorption of shale gas is realized.Finally by collected system gas pressure, system temperature and known
System desorb spatial volume, obtain shale gas desorption quantity.
The present invention is easy to use quickly, and is able to achieve quick, the Accurate Determining of shale air content.
Claims (6)
1. shale gas fast desorption test device, it is characterized in that: including shale gas collection device (1), sealing room (2), rock core powder
Mill apparatus (3), driving device (4), rock core tank (5), water bath device (6) and support (7), support (7) support sealing room (1), branch
Seat (7) center is equipped with driving device (4), and sealing room (2) is provided with rock core grinding device (3), and driving device (4) passes through
Magnetic drive rock core grinding device (3), the mill that rock core tank (5) is inserted into rock core grinding device (3) at the top of sealing room (2) are cut
Face, shale gas collection device (1) communication seals room (2), sealing room (2) leaching are set in water bath device (6).
2. shale gas fast desorption test device according to claim 1, it is characterized in that: the sealing room (2) includes close
Capsule body (21), price fixing (22), cover board (23), holddown spring (24) and thin skin convex block (25), in the inner cavity of seal casinghousing (21)
Price fixing (22) have been laid flat, the outer and rock core tank insert port that price fixing 22 is contacted with seal casinghousing inner wall are equipped with sealing rubber ring,
The oral area of seal casinghousing (21) is stamped cover board (23), is acted on price fixing (22) below cover board (23) equipped with holddown spring (24),
Capping has a thin skin convex block (25) being isolated from the outside world at seal casinghousing (21) bottom centre hole, seal casinghousing (21) bottom surface be equipped with to
On bearing mounting base.
3. shale gas fast desorption test device according to claim 2, it is characterized in that: the rock core grinding device (3)
Including Moving plate (31), strong magnetic cylinder (32) and bearing (33), bearing (33) is placed in the bearing mounting base of seal casinghousing (21) bottom surface
Interior, Moving plate (31) top surface and price fixing (22) bottom surface are in close contact, (31) 31 outer of Moving plate and seal casinghousing inner wall there are spacing,
There is the axle journal of insertion bearing (33) inner ring below Moving plate (31), axle journal inner cavity is equipped with strong magnetic cylinder (32), in strong magnetic cylinder (32)
There are gaps between wall and thin skin convex block (25) outer wall.
4. shale gas fast desorption test device according to claim 3, it is characterized in that: the driving device (4) includes
Motor (42) and strong permanent magnets (41), motor (42) are mounted on support (7) center, are equipped on motor (42) output shaft strong
Power permanent magnet (41), strong permanent magnets (41) put in internal thin skin convex block (25) recessed portion of strong magnetic cylinder (32), and and thin skin
The recess walls retention gap of convex block (25).
5. shale gas fast desorption test device according to claim 4, it is characterized in that: the rock core tank (5) includes living
Stopper rod (51), cover (52), piston spring (53), piston (54) and tank body (55), cover (52) are tightened on tank body (55) top opening,
Piston rod (51) is fixedly connected with piston (54), and piston (54) is cooperated by sealing ring and the sealing of tank body (55) inner wall, piston rod
(51) cover (52) top surface is stretched out, the piston end on piston rod 51 is cased with piston spring (53), and piston spring (53) is located at cover
(52) between piston (54), tank body (55) passes through cover board (23) and price fixing (22) insertion sealing is indoor, tank body (55) lower port
Close to Moving plate (31) top surface.
6. shale gas fast desorption test device according to any one of claims 1 to 5, it is characterized in that: the shale gas is received
Acquisition means (1) include vacuum gas tank (11) and exhaust pipe (14), vacuum gas tank (11) outlet connection exhaust pipe (14), gas exhaust piping
(14) communication seals room (2), exhaust pipe (14) are equipped with shutoff valve (12) and burp valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285823.8A CN109297771A (en) | 2018-10-31 | 2018-10-31 | Shale gas fast desorption test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285823.8A CN109297771A (en) | 2018-10-31 | 2018-10-31 | Shale gas fast desorption test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109297771A true CN109297771A (en) | 2019-02-01 |
Family
ID=65145143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811285823.8A Pending CN109297771A (en) | 2018-10-31 | 2018-10-31 | Shale gas fast desorption test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109297771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595626A (en) * | 2020-11-25 | 2021-04-02 | 王云帅 | Shale gas critical desorption pressure testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595626A (en) * | 2020-11-25 | 2021-04-02 | 王云帅 | Shale gas critical desorption pressure testing device |
| CN112595626B (en) * | 2020-11-25 | 2022-12-13 | 陕西圣和源实业有限公司 | Shale gas critical desorption pressure testing device |
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