CN206235517U - Sandstone/shale/coal bed fracturing experimental rig - Google Patents
Sandstone/shale/coal bed fracturing experimental rig Download PDFInfo
- Publication number
- CN206235517U CN206235517U CN201621234653.7U CN201621234653U CN206235517U CN 206235517 U CN206235517 U CN 206235517U CN 201621234653 U CN201621234653 U CN 201621234653U CN 206235517 U CN206235517 U CN 206235517U
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- CN
- China
- Prior art keywords
- outer barrel
- shale
- sandstone
- fracturing
- coal seam
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Abstract
The utility model discloses a kind of sandstone/shale/coal bed fracturing experimental rig, including outer barrel（4）, the outer barrel（4）Interior setting mixes layer body by the sandstone/shale/coal seam of high pressure compression（8）, the outer barrel（4）Periphery is installed by rondelle electric boiling plate（3）After be placed in core holding unit（7）In；The mixed layer body in the sandstone/shale/coal seam（8）Placing steel tubes pit shaft after internal drilling（2）, the steel pipe pit shaft（2）On open up perforation（6）；The outer barrel（4）Upper end closed simultaneously reserves steel tube well nozzle, and the steel tube well nozzle connects high-pressure hydraulic pump（1）；The outer barrel（4）It is placed with CT scan monitoring device outward（5）.The device can be simulated under different formation conditions, and under different pressure conditions and under different temperature conditionss, the fracturing effect to transitional facies sandstone, coal, the mixed layer of shale gas is estimated, and draws best fracturing parameter and fracturing technology.
Description
Technical field
The utility model is related to underground mining technological experiment room experimental rig field, specially a kind of sandstone/shale/coal seam
Fracturing experiments device, subsurface fracture technological parameter is determined for simulating.
Background technology
The unique transitional facies stratum in Shanxi Province proposes new problem to traditional fracturing technique, in the shale of marine facies
In gas stratum, shale gas fracturing technique is more ripe, but is mingled with coal seam, rammell, the rock of the transitional facies of sand layers
In layer, pressure break is carried out, the technique of feature and pressure break to the gap of pressure break is required for detailed laboratory simulation.
The content of the invention
The purpose of this utility model is to provide a kind of coal bed gas/shale gas crushing test device, for solving production practices
Before carry out sufficient fracturing experiments, it is ensured that underground work it is safe and effective.
The utility model adopts the following technical scheme that realization：
Set by high pressure compression in a kind of sandstone/shale/coal bed fracturing experimental rig, including outer barrel, the outer barrel
The mixed layer body in sandstone/shale/coal seam, the outer barrel periphery is placed in core holding unit after installing rondelle electric boiling plate；The sand
Placing steel tubes pit shaft after the mixed layer drilling in vivo of rock/shale/coal seam, perforation is opened up on the steel pipe pit shaft；End seal on the outer barrel
Steel tube well nozzle is closed and reserves, the steel tube well nozzle connects high-pressure hydraulic pump；CT scan monitoring device is placed with outside the outer barrel.
According to test requirements document, a cylindrical shape experimental provision is put into from different coals, sandstone, shale（Outer barrel）, add
High pressure constitutes the mixed layer body in sandstone/shale/coal seam after being fully compacted, the aperture of needs is got out as needed, and centre is put into basis
Need the steel pipe pit shaft that perforation is finished.Rondelle electric boiling plate, external power supply, for temperature control are added around outer barrel.So
The outmost turns of cylindrical shape experimental provision are added into core holding unit, convenient control confined pressure afterwards.Finally, to whole outer barrel device steel
Plate is closed, and reserves the steel tube well nozzle of centre, and high-pressure hydraulic pump is accessed from steel tube well nozzle, and experimental provision is pressurized.Experiment
CT scan monitoring device, the crack state of the mixed layer body in detection sandstone/shale/coal seam are added around device.
The beneficial effects of the utility model are as follows：
The present apparatus can carry out laboratory simulation fracturing process before large-scale underground fracture, to confined pressure, temperature, Jie
The influence of the forms of factor fracture such as matter situation, aperture, Kong Mi, load fluid, sand particle diameter carries out sensitivity analysis, draws most
Excellent Fracturing Project.
The utility model is reasonable in design, and the device can be simulated under different formation conditions, under different pressure conditions with
And under different temperature conditionss, the fracturing effect to transitional facies sandstone, coal, the mixed layer of shale gas is estimated, and drawing most has
The fracturing parameter and fracturing technology of profit, with preferable application value.
Brief description of the drawings
Fig. 1 represents the structural representation of fracturing device.
In figure：1- high-pressure hydraulic pumps, 2- steel pipe pit shafts, 3- rondelle electric boiling plates, 4- outer barrels, 5-CT scanning monitoring devices,
6- perforations, 7- core holding units, the mixed layer body in 8- sandstone/shale/coal seam.
Specific embodiment
Specific embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
A kind of sandstone/shale/coal bed fracturing experimental rig, as shown in figure 1, including outer barrel 4, warp is set in the outer barrel 4
Cross the mixed layer body 8 in sandstone/shale/coal seam of high pressure compression；During preparation, outer barrel is put into from different coals, sandstone, shale, added
High pressure constitutes the mixed layer body in sandstone/shale/coal seam after being fully compacted.
As shown in figure 1, the internal drilling of the mixed layer body 8 in the sandstone/shale/coal seam（Generally, in the axis of mixed layer body
Place's drilling）Placing steel tubes pit shaft 2, perforation 6 is opened up on the steel pipe pit shaft 2 afterwards.
As shown in figure 1, rondelle electric boiling plate 3 is installed in the periphery of the outer barrel 4（Namely heat conduction iron sheet）, connect power supply
Afterwards, for temperature control.The outmost turns of outer barrel 4 install core holding unit 7 additional, for controlling confined pressure.
As shown in figure 1, the upper end closed of the outer barrel 4 and reserving steel tube well nozzle, the steel tube well nozzle connects water under high pressure
Pump 1, for pressurizeing.
As shown in figure 1, CT scan monitoring device 5 is placed with outside the outer barrel 4, for detecting that layer is mixed in sandstone/shale/coal seam
The crack state of body.
During specific implementation, according to test requirements document, a cylindrical shape experimental provision is put into from different coals, sandstone, shale
（Outer barrel 4）, add high pressure that the mixed layer body 8 in sandstone/shale/coal seam is constituted after being fully compacted, the aperture of needs is got out as needed, in
Between be put into the steel pipe pit shaft 2 that perforation is finished as needed.The addition rondelle electric boiling plate 3 around outer barrel 4, external power supply,
For temperature control.Then the outmost turns of cylindrical shape experimental provision are added into core holding unit 7, convenient control confined pressure.Finally, it is right
Whole outer barrel device is closed with steel plate, reserves the steel tube well nozzle of centre, and high-pressure hydraulic pump 1 is accessed from steel tube well nozzle, to experiment
Device is pressurized.CT scan monitoring device 5, the slit-like of the mixed layer body in detection sandstone/shale/coal seam are added around experimental provision
State.
It should be noted last that, above example is only used to illustrate the technical solution of the utility model and unrestricted, to the greatest extent
Pipe has been described in detail with reference to the utility model embodiment, it will be understood by those within the art that, it is new to this practicality
The technical scheme of type is modified or equivalent, without departure from the spirit and scope of the technical solution of the utility model, its
In all should covering claims.
Claims (1)
1. a kind of sandstone/shale/coal bed fracturing experimental rig, it is characterised in that：Including outer barrel（4）, the outer barrel（4）Interior setting
Layer body is mixed by the sandstone/shale/coal seam of high pressure compression（8）, the outer barrel（4）Periphery is installed by rondelle electric boiling plate（3）Afterwards
It is placed in core holding unit（7）In；The mixed layer body in the sandstone/shale/coal seam（8）Placing steel tubes pit shaft after internal drilling（2）, the steel
Pipe well cylinder（2）On open up perforation（6）；The outer barrel（4）Upper end closed simultaneously reserves steel tube well nozzle, the steel tube well nozzle connection
High-pressure hydraulic pump（1）；The outer barrel（4）It is placed with CT scan monitoring device outward（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234653.7U CN206235517U (en) | 2016-11-17 | 2016-11-17 | Sandstone/shale/coal bed fracturing experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234653.7U CN206235517U (en) | 2016-11-17 | 2016-11-17 | Sandstone/shale/coal bed fracturing experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206235517U true CN206235517U (en) | 2017-06-09 |
Family
ID=58990237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621234653.7U Expired - Fee Related CN206235517U (en) | 2016-11-17 | 2016-11-17 | Sandstone/shale/coal bed fracturing experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206235517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281191A (en) * | 2021-05-25 | 2021-08-20 | 中国科学院武汉岩土力学研究所 | High-low temperature fracturing test device and test method based on same |
-
2016
- 2016-11-17 CN CN201621234653.7U patent/CN206235517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281191A (en) * | 2021-05-25 | 2021-08-20 | 中国科学院武汉岩土力学研究所 | High-low temperature fracturing test device and test method based on same |
| CN113281191B (en) * | 2021-05-25 | 2022-11-08 | 中国科学院武汉岩土力学研究所 | High-low temperature fracturing test device and test method based on same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20171117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |