CN206329306U - A kind of carbon dioxide fracturing hole sealing device - Google Patents
A kind of carbon dioxide fracturing hole sealing device Download PDFInfo
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- CN206329306U CN206329306U CN201621421674.XU CN201621421674U CN206329306U CN 206329306 U CN206329306 U CN 206329306U CN 201621421674 U CN201621421674 U CN 201621421674U CN 206329306 U CN206329306 U CN 206329306U
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- carbon dioxide
- water filling
- fracturing
- pressure
- hole sealing
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Abstract
A kind of carbon dioxide fracturing hole sealing device, including closing device main body, the closing device main body includes expansion water filling capsule, expand the two ends connection retardant device of water filling capsule, the center of closing device main body is provided with central tubing string, the inside of central tubing string is provided with connecting wire, and the inside and outside of central tubing string is respectively arranged at two ends with interior pin clamp and extrapolation lock-joint；The outer end of closing device main body is provided with water filling port and pressure observation mouthful；The carbon dioxide fracturing hole sealing device is provided with pressure observation mouthful, can at any time in peephole fracturing device release pressure, it can shift to an earlier date release when the release pressure in hole is higher than design pressure or be adjusted, and it ensure that the pressure security during fracturing, fracturing wire is arranged on inside hole sealing device, all secret joints, it is to avoid produce fracturing spark, ensure the safety and stability of fracturing circuit, be worth promoting.
Description
Technical field
The utility model is related to carbon dioxide fracturing technical field, especially a kind of carbon dioxide fracturing hole sealing device.
Background technology
Carbon dioxide fracturing technology is a kind of high pressure pneumatic component technology, is body when utilizing liquid carbon dioxide endothermic gasification
Drastically expansion produces high pressure to product, causes coal（Rock）Body is broken or ftractures.It can be widely applied to colliery and non-coal mine, cement, adopt
All conglomeraties such as stone.
Coal and gas outburst mine is particularly suitable for use in, explosive is substituted, available for coal blasting, Comprehensive Gas Control, impact
Ground pressure improvement, extinction, top coal reduction, stone door punching coal, Floor Heave in Roadway improvement, coal bunker block clearing etc..It is anti-reflection for coal seam fracturing, can
Dramatically increase gas permeability of coal seam, solve low-air-permeability coal-bed gas extraction difficulty, the problem of transfiniting frequent is improved coal-bed gas and taken out
Adopt efficiency.
In order to ensure fracturing effect, it is necessary to be sealed to fracturing hole, typically using hole packer, but existing hole packer
Structure is relatively simple, there is many safety problems.
Utility model content
The utility model aims to provide one kind and is provided with pressure observation mouthful, can at any time in peephole fracturing device release pressure
Power, and the pressure security during fracturing is ensure that, fracturing wire is arranged on inside hole sealing device, it is to avoid produce fracturing fire
Flower, it is ensured that the carbon dioxide fracturing hole sealing device of the safety and stability of fracturing circuit.
To achieve the above object, the utility model provides following technical scheme：A kind of carbon dioxide fracturing hole sealing device, bag
Closing device main body is included, the closing device main body includes expansion water filling capsule, and the two ends of expansion water filling capsule connect retardant device,
The center of closing device main body is provided with central tubing string, and the inside of central tubing string is provided with connecting wire, the inside and outside two ends of central tubing string
It is respectively equipped with interior pin clamp and extrapolation lock-joint；The outer end of closing device main body is provided with water filling port and pressure observation mouthful.
It is used as further scheme of the present utility model：Water filling port and the pressure observation mouth is all connected to expansion water filling capsule
It is interior.
It is used as further scheme of the present utility model：The outer end connection external connecting leads of the connecting wire, the inner is even
Connect internal connecting wire；External connecting leads are connected in carbon dioxide fracturing initiator, internal connecting wire and fracturing hole
Fracturing device circuit is connected.
It is used as further scheme of the present utility model：The water filling port connects high pressure water-injection pump by pressure duct.
It is used as further scheme of the present utility model：The pressure observation mouthful connection pressure gauge.
It is used as further scheme of the present utility model：The inside at the two ends of the central tubing string is provided with sealing column.
It is used as further scheme of the present utility model：Filling water under high pressure in the expansion water filling capsule.
Compared with prior art, the beneficial effects of the utility model are：The carbon dioxide fracturing hole sealing device has following
Advantage：The first, pressure observation mouthful is installed, can at any time in peephole fracturing device release pressure, when the release pressure in hole is high
Release can be shifted to an earlier date when design pressure or be adjusted.And it ensure that the pressure security during fracturing.2nd, improve
The intensity of water filling capsule, water filling capsule makes sealing of hole pressure when disclosure satisfy that fracturing using special material.3rd, fracturing is led
Line is arranged on inside hole sealing device, all secret joints, it is to avoid produce fracturing spark, it is ensured that the safety and stability of fracturing circuit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, in the utility model embodiment, a kind of carbon dioxide fracturing hole sealing device, including closing device master
Body 1, the closing device main body 1 includes expansion water filling capsule 2, the two ends connection retardant device 3 of expansion water filling capsule 2, sealing dress
The center for putting main body 1 is provided with central tubing string 4, and the inside of central tubing string 4 is provided with connecting wire, the inside and outside two ends point of central tubing string 4
She You not interior pin clamp 5 and extrapolation lock-joint 6；The outer end of closing device main body 1 is provided with water filling port 7 and pressure observation mouthful 8.
Above-mentioned, water filling port 7 and pressure observation mouthful 8 are all connected in expansion water filling capsule 2.
It is above-mentioned, the outer end connection external connecting leads 9 of connecting wire, the inner connection internal connecting wire 10.External connection
Wire 9 is connected to carbon dioxide fracturing initiator, and internal connecting wire 10 is connected with the fracturing device circuit in fracturing hole.
Above-mentioned, water filling port 7 connects high pressure water-injection pump by pressure duct.
Above-mentioned, pressure observation mouthful 8 connects pressure gauge.
Above-mentioned, the inside at the two ends of central tubing string 4 is provided with sealing column 11.
It is above-mentioned, filling water under high pressure 21 in expansion water filling capsule 2.
Above-mentioned, expansion water filling capsule 2 is socketed or other connected modes with retardant device 3, is prior art and is not gone to live in the household of one's in-laws on getting married again
State.
Design feature and its operation principle of the present utility model：The utility model applies to carbon dioxide fracturing technique
A part, external connecting leads 9 and the external connection circuit of carbon dioxide fracturing hole sealing device are connected to carbon dioxide fracturing and risen
Quick-fried device, extrapolation lock-joint 6 is connected with connecting rod, and hole packer can be pushed to the sealing of hole position specified by connecting rod, and hole packer is pushed
To specified location, water filling port 7 is connected to high pressure water-injection pump by pressure duct, water under high pressure 21 is filled out by high pressure water-injection pump
It is filled with expansion water filling capsule 2, its expansion is combined with hole wall rapidly and reach the effect of sealing of hole.Pressure observation mouthful 8 and outside
Pressure gauge be attached the change of the pressure value of peephole at any time, the intensity of expansion water filling capsule 2 can bear the wink in hole
Between pressure be 80-230MPa, meet the sealing of hole demand of fracturing.Retardant device 3 is for and hole wall less when hole packer is reclaimed
Friction, enables hole packer smoothly to reclaim（External diameter diminishes after the internal water discharge of expansion water filling capsule 2, therefore main when taking out
It is retardant device 3 and hole wall friction）.Sealing column 11 is arranged on the inside at central two of tubing string 4, it is ensured that the sealing of connection line part
Property.Internal connecting wire 10 is connected with the fracturing device circuit in hole, and internal pin clamp connects with internal fracturing device, all filling pins
Connect, make connection simple and practical.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of carbon dioxide fracturing hole sealing device, including closing device main body, it is characterised in that the closing device main body bag
Expansion water filling capsule is included, the two ends connection retardant device of expansion water filling capsule, the center of closing device main body is provided with central tubing string, in
The inside of tubing string is entreated to be provided with connecting wire, the inside and outside of central tubing string is respectively arranged at two ends with interior pin clamp and extrapolation lock-joint；Sealing dress
The outer end of main body is put provided with water filling port and pressure observation mouthful.
2. carbon dioxide fracturing hole sealing device according to claim 1, it is characterised in that the water filling port and pressure observation
Mouth is all connected in expansion water filling capsule.
3. carbon dioxide fracturing hole sealing device according to claim 1, it is characterised in that the outer end of the connecting wire connects
Connect external connecting leads, the inner connection internal connecting wire；External connecting leads are connected to carbon dioxide fracturing initiator, internal
Connecting wire is connected with the fracturing device circuit in fracturing hole.
4. carbon dioxide fracturing hole sealing device according to claim 1, it is characterised in that the water filling port passes through high-voltage tube
Road connects high pressure water-injection pump.
5. carbon dioxide fracturing hole sealing device according to claim 1, it is characterised in that the pressure observation mouthful connection pressure
Power table.
6. carbon dioxide fracturing hole sealing device according to claim 1, it is characterised in that the two ends of the central tubing string
Inside is provided with sealing column.
7. carbon dioxide fracturing hole sealing device according to claim 1, it is characterised in that filled out in the expansion water filling capsule
Fill water under high pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421674.XU CN206329306U (en) | 2016-12-23 | 2016-12-23 | A kind of carbon dioxide fracturing hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421674.XU CN206329306U (en) | 2016-12-23 | 2016-12-23 | A kind of carbon dioxide fracturing hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329306U true CN206329306U (en) | 2017-07-14 |
Family
ID=59293384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621421674.XU Active CN206329306U (en) | 2016-12-23 | 2016-12-23 | A kind of carbon dioxide fracturing hole sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676092A (en) * | 2017-10-10 | 2018-02-09 | 山西煤炭运销集团长治有限公司 | A kind of liquid carbon dioxide phase transformation explosion rapid hole sealing device and method for sealing |
| CN109931060A (en) * | 2017-12-15 | 2019-06-25 | 中国矿业大学 | A kind of gas-liquid combination orientation fracturing device and method |
-
2016
- 2016-12-23 CN CN201621421674.XU patent/CN206329306U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676092A (en) * | 2017-10-10 | 2018-02-09 | 山西煤炭运销集团长治有限公司 | A kind of liquid carbon dioxide phase transformation explosion rapid hole sealing device and method for sealing |
| CN109931060A (en) * | 2017-12-15 | 2019-06-25 | 中国矿业大学 | A kind of gas-liquid combination orientation fracturing device and method |
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