CN109282707A - Liquid carbon dioxide phase transformation fracturing device - Google Patents
Liquid carbon dioxide phase transformation fracturing device Download PDFInfo
- Publication number
- CN109282707A CN109282707A CN201811230614.3A CN201811230614A CN109282707A CN 109282707 A CN109282707 A CN 109282707A CN 201811230614 A CN201811230614 A CN 201811230614A CN 109282707 A CN109282707 A CN 109282707A
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- CN
- China
- Prior art keywords
- pipe
- sent
- carbon dioxide
- feeding
- liquid carbon
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
Abstract
The invention discloses liquid carbon dioxide phase transformation fracturing devices, it is when controlling phase transformation fracturing, pipe is loaded to liquid carbon dioxide simultaneously by interior heated probe and additional heat coil to heat, liquid carbon dioxide can be improved and load the rapidity for managing interior carbon dioxide phase transformation, improve the impact force of phase transformation, and, interior heated probe is being internally heated, additional heat coil outside rapidly and uniformly heat by portion, so that the phase transformation simultaneously of internal liquid carbon dioxide, the effect of carbon dioxide phase transformation fracturing can be improved, simultaneously, the design of release head of the invention, atmospheric carbon dioxide after can making phase transformation quickly impacts coal seam, improve fracturing performance, feeder of the invention is sent by classification, it can be quick, steady feeding, it is high to be sent into accuracy, effect is good.
Description
Technical field
The present invention relates to liquid carbon dioxide phase transformation fracturing devices, belong to aerosol web material equipment for coating film technology neck
Domain.
Background technique
Liquid carbon dioxide phase transformation fracturing technology is a kind of advanced theory, essential safety, environmentally protective, demolition effect is significant
Blasting technique.Carbon dioxide explosion starts from nineteen fifties, and the eighties start to develop in the U.S., is primarily intended to keep away
Exempt from because explosive blasting generate flame caused by explosion accident due to exclusively for highly gassy mine coal working face research and development.It can be with
Gas permeability of coal seam is effectively improved, gas pumping effect is strengthened.
It is usually that the pipe equipped with liquid carbon dioxide is placed in brill for liquid carbon dioxide phase transformation fracturing technology
Then Kong Zhong is ignited by way of heating, current heating method is usually to be heated using heating stylus, this to add
Hot mode, heating efficiency is slower, and phase transformation while when carbon dioxide phase transformation cannot achieve liquid carbon dioxide leads to impact force not
It is enough, moreover, being sent into drilling for current liquid carbon dioxide phase transition tube, usually utilize simple hydraulic part
It is pressed into, this mode, for deeper drilling, the pressing-in force of hydraulic part is unstable, and hydraulic coupling is larger, is easy
Existing pipe fitting bending or stuck phenomenon, influence to be sent into efficiency and effect.
The present invention improves the ignition of phase transformation fracturing in view of the above problems, offer liquid carbon dioxide phase transformation fracturing device
Can, impact force is improved, and improve feeding efficiency.
Summary of the invention
To achieve the above object, the invention provides the following technical scheme: liquid carbon dioxide phase transformation fracturing device comprising
It is sent into pipe, more piece phase transformation fracturing pipe, feeding unit and controller, which is characterized in that the front end welding for being sent into pipe or spiral shell
Line is connected with more piece phase transformation fracturing pipe, and the controller controls each section phase transformation fracturing pipe simultaneously operation, the rear end for being sent into pipe
It is provided with feeding connection component, feeding unit is connect with the feeding connection component, to be sent into pipe, more piece phase transformation fracturing pipe
It is sent into coal bed drilling；
The phase transformation fracturing pipe includes that liquid carbon dioxide loads pipe, release pipe, release head, rupture disk and heating component, wherein
The front end that the liquid carbon dioxide loads pipe is provided with release pipe, and the front end of the release pipe is provided with release head, the liquid
State carbon dioxide, which loads, to be also connected between pipe and the release pipe and is provided with intermediate plug, and the centre bore of the intermediate plug is by institute
It states the space that liquid carbon dioxide loads between the loading chamaer of pipe and the release pipe to be connected to, in the centre bore of the intermediate plug
It is provided with rupture disk, so that liquid carbon dioxide to be isolated, which is characterized in that release the provided circumferentially about of pipe has multiple release
Discharge hole, is also equipped with multiple relief holes on the release head, and the heating component includes interior heated probe and additional heat coil,
In, the interior heated probe protrudes into the central interior that the liquid carbon dioxide loads pipe, and the additional heat coil is wound around institute
It states liquid carbon dioxide to load on the excircle of pipe, and it is irony pipe that the liquid carbon dioxide, which loads pipe, the controller is logical
It crosses controlling cable one and controlling cable two controls the interior heated probe and additional heat coil simultaneously operation, the controller is outside
Heating coil realizes the eddy heating for heating that pipe is loaded to carbon dioxide by being passed through alternating current.
Further, preferably, the release head is plugged together in a manner of clearance fit in the front aperture of the release pipe,
And the inclined inner end towards coal bed drilling of the relief hole is arranged, the relief hole and release on the release pipe are managed
The angle of central axis be 45-60 °, and the relief hole is the big wedged hole in the small inner end in outer end, the front end of the release head
For ball head structure, and the relief hole in the ball head structure extends along the radial direction of bulb.
Further, preferably, the outer, coaxial that the liquid carbon dioxide loads pipe is fixedly installed rigid insulation pipe,
The additional heat coil is laid in the cavity between the rigid insulation pipe and liquid titanium dioxide loading pipe, will pass through
The external heating coil of rigid insulation pipe is protected, and the outer diameter of the rigid insulation pipe, which is less than, is sent into pipe 1-2mm, described to send
The outer diameter of the outer diameter of inlet pipe and the intermediate plug is equal.
Further, preferably, the interior heated probe is arranged on internal heater, the internal heater is arranged in liquid
Carbon dioxide loads the end center of pipe, is additionally provided with liquid carbon dioxide note on the side wall of the liquid carbon dioxide loading pipe
Entrance and control valve.
Further, preferably, being additionally provided with expansion envelope between the outer end for being sent into pipe and the outer end of coal bed drilling
Stifled device.
Further, preferably, the feeding connection component includes feed plate and feeding support, the outer end for being sent into pipe
It is provided centrally with feeding connector, the feeding connector is fixedly connected on feed plate center, and described send is located on the feed plate
It is symmetrically arranged with feeding support into the both ends of connector, the feeding support is connect with the feeding unit, passes through the feeding group
Part drives in the feeding pipe insertion drilling.
Further, preferably, the feeding unit include removable frame body, lifting seat, the hydraulic feeding unit of level-one and
Second level lead screw feeding unit, wherein lifting seat is provided on the removable frame body, the hydraulic feeding unit of level-one is adjustable
Angle is fixedly connected on the lifting seat, and the front end of the hydraulic feeding unit of level-one is provided with elastic connection seat, described
The end of elastic connection seat is connected with the second level lead screw feeding unit, and the output end of the second level lead screw feeding unit is connected to
On the feeding connection component.
Further, preferably, the hydraulic feeding unit of the level-one includes hydraulic cylinder, extends support base, sliding seat and one
Grade is sent into seat, wherein the hydraulic cylinder is fixed on described one end for extending support base, the extension support base adjustable-angle
It is arranged on the lifting seat, the sliding seat is fixed on the tailpiece of the piston rod of the hydraulic cylinder, and the sliding seat is along described
The sliding slot extended on support base is slidably arranged, and the end of the sliding seat is provided with the level-one and is sent into seat, and the elasticity is even
Joint chair is connected to the end that the level-one is sent into seat.
Further, preferably, the second level lead screw feeding unit includes being sent into frame plate, being sent into motor one, be sent into motor
Two, turbine and worm, feeding lead screw and nut seat, wherein the feeding frame plate is fixed on the elastic connection seat by connecting column
On, the both sides of the side for being sent into frame plate are respectively arranged with a nut seat, and the nut on the nut seat uses turbine snail
Bar and the feeding motor one are sent into the transmission connection of motor two, and the feeding lead screw is threadedly engaged with the nut seat, described to send
It is connect into the end of lead screw with support is sent into, drives the feeding lead screw to move by the feeding motor one and feeding motor two
It is dynamic, realize the gradually feeding to pipe is sent into.
Further, preferably, when being sent into, first the feeding lead screw of second level lead screw feeding unit is torn open with support is sent into
It opens, the feeding lead screw of second level lead screw feeding unit is retracted into end, then the hydraulic feeding unit of level-one is sent into certain position,
So that being sent into lead screw and feeding support reconnect, then second level lead screw feeding unit is recycled to advance, realized to feeding pipe
It is sent into section by section steadily, repeats retract second level lead screw feeding unit later, continue to repeat above-mentioned movement
Compared with prior art, the beneficial effects of the present invention are:
Liquid carbon dioxide phase transformation fracturing device of the invention, when controlling phase transformation fracturing, by interior heated probe and additional
Heat coil loads pipe to liquid carbon dioxide simultaneously and heats, and liquid carbon dioxide can be improved and load titanium dioxide carbon phase in pipe
The rapidity of change improves the impact force of phase transformation, moreover, interior heated probe is being internally heated, portion is fast outside for additional heat coil
Fast uniform heating, so that the phase transformation simultaneously of internal liquid carbon dioxide, can be improved the effect of carbon dioxide phase transformation fracturing, together
When, the design of release head of the invention, the atmospheric carbon dioxide after can making phase transformation quickly impacts coal seam, improves resistance
Can, feeder of the invention is sent by classification, feeding that can be quick, steady, is sent into that accuracy is high, and effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of liquid carbon dioxide phase transformation fracturing device of the present invention；
Fig. 2 is the additional heat coil arragement construction schematic diagram of liquid carbon dioxide phase transformation fracturing device of the present invention；
Fig. 3 is the feeding unit structural schematic diagram of liquid carbon dioxide phase transformation fracturing device of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: liquid carbon dioxide phase transformation fracturing device comprising send
Inlet pipe, more piece phase transformation fracturing pipe, feeding unit and controller, which is characterized in that the front end welding for being sent into pipe or screw thread
It is connected with more piece phase transformation fracturing pipe, the controller controls each section phase transformation fracturing pipe simultaneously operation, and the rear end for being sent into pipe is set
It is equipped with feeding connection component, feeding unit is connect with the feeding connection component, and to be sent into pipe, more piece phase transformation fracturing pipe will be sent
Enter in coal bed drilling；
The phase transformation fracturing pipe includes that liquid carbon dioxide loads pipe 18, release pipe 14, release head 15, rupture disk 11 and heating group
Part, wherein the front end that the liquid carbon dioxide loads pipe 18 is provided with release pipe 14, and the front end of the release pipe 14 is provided with
Release head 15, the liquid carbon dioxide, which loads to be also connected between pipe and the release pipe, is provided with intermediate plug 12, it is described in
Between plug 12 centre bore by the liquid carbon dioxide load pipe loading chamaer 16 and it is described release pipe 14 between space connect
It is logical, it is provided with rupture disk 11 in the centre bore of the intermediate plug 12, so that liquid carbon dioxide to be isolated, which is characterized in that
Release the provided circumferentially about of pipe 14 has multiple relief holes 13, and multiple relief holes 13, institute are also equipped on the release head 15
Stating heating component includes interior heated probe 7 and additional heat coil 10, wherein the interior heated probe 7 protrudes into the liquid dioxy
Change the central interior of carbon loading pipe 16, the additional heat coil 10 is wound around the excircle that the liquid carbon dioxide loads pipe 18
On, and it is irony pipe that the liquid carbon dioxide, which loads pipe, the controller is controlled by controlling cable 1 and controlling cable 25
It makes the interior heated probe 7 and additional heat coil 10 moves at the same time, the outside heating coil of controller is by being passed through alternation electricity
Stream realizes the eddy heating for heating that pipe is loaded to carbon dioxide.
In the present embodiment, the release head 15 is plugged together in a manner of clearance fit in the front aperture of the release pipe,
And the inclined inner end towards coal bed drilling of the relief hole 13 is arranged, the relief hole on the release pipe 14 with release
The angle for putting the central axis of pipe is 45-60 °, and the relief hole 13 is the big wedged hole in the small inner end in outer end, the release head
15 front end is ball head structure, and the relief hole in the ball head structure extends along the radial direction of bulb.
As preferred embodiment, the outer, coaxial that the liquid carbon dioxide loads pipe is fixedly installed rigid insulation pipe
17, the additional heat coil is laid in the cavity between the rigid insulation pipe and liquid titanium dioxide loading pipe, so as to
It is protected by the external heating coil of rigid insulation pipe, the outer diameter of the rigid insulation pipe, which is less than, is sent into pipe 1-2mm, institute
The outer diameter for stating the outer diameter and the intermediate plug that are sent into pipe is equal.
Wherein, the interior heated probe is arranged on internal heater 6, and the internal heater 6 is arranged in liquid carbon dioxide
The end center of pipe is loaded, is additionally provided with 8 He of liquid carbon dioxide inlet on the side wall of the liquid carbon dioxide loading pipe
Control valve 9 is additionally provided with expansion plugging device 3 between the outer end for being sent into pipe and the outer end of coal bed drilling.
In the present embodiment, the feeding connection component includes feed plate 1 and feeding support 2, the outer end for being sent into pipe
It is provided centrally with feeding connector, the feeding connector is fixedly connected on feed plate center, and described send is located on the feed plate 1
It is symmetrically arranged with into the both ends of connector and is sent into support 2, the feeding support 2 is connect with the feeding unit, passes through the feeding
In feeding pipe insertion drilling described in Component driver.
As more preferably embodiment, the feeding unit includes removable frame body 19, lifting seat 20, the hydraulic feeding group of level-one
Part and second level lead screw feeding unit, wherein lifting seat 20, the hydraulic feeding group of level-one are provided on the removable frame body 19
Part adjustable-angle is fixedly connected on the lifting seat 20, and flexible company is arranged in the front end of the hydraulic feeding unit of level-one
Joint chair 24, the end of the elastic connection seat 24 are connected with the second level lead screw feeding unit, the second level lead screw feeding unit
Output end be connected on the feeding connection component.
The hydraulic feeding unit of level-one includes hydraulic cylinder 23, extends support base 22, sliding seat 24 and level-one feeding seat,
In, the hydraulic cylinder 23 is fixed on described one end for extending support base, and the setting for extending 22 adjustable-angle of support base exists
On the lifting seat 20, the sliding seat 24 is fixed on the tailpiece of the piston rod of the hydraulic cylinder, and the sliding seat 24 is along described
The sliding slot extended on support base is slidably arranged, and the end of the sliding seat is provided with the level-one and is sent into seat, and the elasticity is even
Joint chair 24 is connected to the end that the level-one is sent into seat.
The second level lead screw feeding unit includes being sent into frame plate 25, being sent into motor 1, be sent into motor 2 29, turbine snail
Bar is sent into lead screw 27 and nut seat, wherein the feeding frame plate 25 is fixed on the elastic connection seat 24 by connecting column 28
On, the both sides of the side for being sent into frame plate are respectively arranged with a nut seat, and the nut on the nut seat uses turbine snail
Bar and the feeding motor 1 are sent into the transmission connection of motor 2 29, and the feeding lead screw 27 is threadedly engaged with the nut seat,
The end for being sent into lead screw 27 is connect with support 2 is sent into, and drives described send by the feeding motor one and feeding motor two
It is mobile into lead screw, realize the gradually feeding to pipe is sent into.
When being sent into, the feeding lead screw of second level lead screw feeding unit is dismantled with support is sent into first, second level lead screw is sent into
The feeding lead screw of component retracts end, and then the hydraulic feeding unit of level-one is sent into certain position, so that being sent into lead screw and sending
It is reconnected into support, then second level lead screw feeding unit is recycled to advance, realized to being sent into section by section steadily for pipe is sent into, later
It repeats and retracts second level lead screw feeding unit, continue to repeat above-mentioned movement
Liquid carbon dioxide phase transformation fracturing device of the invention, when controlling phase transformation fracturing, by interior heated probe and additional
Heat coil loads pipe to liquid carbon dioxide simultaneously and heats, and liquid carbon dioxide can be improved and load titanium dioxide carbon phase in pipe
The rapidity of change improves the impact force of phase transformation, moreover, interior heated probe is being internally heated, portion is fast outside for additional heat coil
Fast uniform heating, so that the phase transformation simultaneously of internal liquid carbon dioxide, can be improved the effect of carbon dioxide phase transformation fracturing, together
When, the design of release head of the invention, the atmospheric carbon dioxide after can making phase transformation quickly impacts coal seam, improves resistance
Can, feeder of the invention is sent by classification, feeding that can be quick, steady, is sent into that accuracy is high, and effect is good.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. liquid carbon dioxide phase transformation fracturing device, which is characterized in that it includes being sent into pipe, more piece phase transformation fracturing pipe, feeding group
Part and controller, which is characterized in that the front end welding for being sent into pipe is threaded with more piece phase transformation fracturing pipe, the control
Device processed controls each section phase transformation fracturing pipe simultaneously operation, and the rear end for being sent into pipe is provided with feeding connection component, feeding unit with
The feeding connection component connection, to be sent into pipe, more piece phase transformation fracturing pipe will be sent into coal bed drilling；
The phase transformation fracturing pipe includes that liquid carbon dioxide loads pipe, release pipe, release head, rupture disk and heating component, wherein
The front end that the liquid carbon dioxide loads pipe is provided with release pipe, and the front end of the release pipe is provided with release head, the liquid
State carbon dioxide, which loads, to be also connected between pipe and the release pipe and is provided with intermediate plug, and the centre bore of the intermediate plug is by institute
It states the space that liquid carbon dioxide loads between the loading chamaer of pipe and the release pipe to be connected to, in the centre bore of the intermediate plug
It is provided with rupture disk, so that liquid carbon dioxide to be isolated, which is characterized in that release the provided circumferentially about of pipe has multiple release
Discharge hole, is also equipped with multiple relief holes on the release head, and the heating component includes interior heated probe and additional heat coil,
In, the interior heated probe protrudes into the central interior that the liquid carbon dioxide loads pipe, and the additional heat coil is wound around institute
It states liquid carbon dioxide to load on the excircle of pipe, and it is irony pipe that the liquid carbon dioxide, which loads pipe, the controller is logical
It crosses controlling cable one and controlling cable two controls the interior heated probe and additional heat coil simultaneously operation, the controller is outside
Heating coil realizes the eddy heating for heating that pipe is loaded to carbon dioxide by being passed through alternating current.
2. liquid carbon dioxide phase transformation fracturing device according to claim 1, it is characterised in that: the release head is with gap
The mode of cooperation plugs together in the front aperture of the release pipe, and the inclined inner end towards coal bed drilling of the relief hole
The angle of the central axis of setting, the relief hole discharged on pipe and release pipe is 45-60 °, and the relief hole is
The big wedged hole in the small inner end in outer end, the front end of the release head are ball head structure, and the relief hole in the ball head structure along
The radial direction of bulb extends.
3. liquid carbon dioxide phase transformation fracturing device according to claim 2, it is characterised in that: the liquid carbon dioxide
The outer, coaxial for loading pipe is fixedly installed rigid insulation pipe, the additional heat coil be laid in the rigid insulation pipe with it is described
Liquid titanium dioxide loads in the cavity between pipe, is protected with will pass through the external heating coil of rigid insulation pipe, described
The outer diameter of rigid insulation pipe, which is less than, is sent into pipe 1-2mm, and the outer diameter of the outer diameter for being sent into pipe and the intermediate plug is equal.
4. liquid carbon dioxide phase transformation fracturing device according to claim 3, it is characterised in that: the interior heated probe is set
It sets on internal heater, the end center that liquid carbon dioxide loads pipe, the liquid titanium dioxide is arranged in the internal heater
Liquid carbon dioxide inlet and control valve are additionally provided on the side wall of carbon loading pipe.
5. liquid carbon dioxide phase transformation fracturing device according to claim 1, it is characterised in that: the outer end for being sent into pipe
Expansion plugging device is additionally provided between the outer end of coal bed drilling.
6. liquid carbon dioxide phase transformation fracturing device according to claim 1, it is characterised in that: the feeding connection component
Including feed plate and it is sent into support, the outer end for being sent into pipe is provided centrally with feeding connector, and the feeding connector is fixedly connected
It is located at the both ends for being sent into connector on feed plate center, on the feed plate and is symmetrically arranged with feeding support, the feeding
Support is connect with the feeding unit, is driven in the feeding pipe insertion drilling by the feeding unit.
7. liquid carbon dioxide phase transformation fracturing device according to claim 1, it is characterised in that: the feeding unit includes
Removable frame body, lifting seat, the hydraulic feeding unit of level-one and second level lead screw feeding unit, wherein set on the removable frame body
It is equipped with lifting seat, the hydraulic feeding unit adjustable-angle of level-one is fixedly connected on the lifting seat, the level-one liquid
The front end of pressure feeding unit is provided with elastic connection seat, and the end of the elastic connection seat is connected with the second level lead screw feeding group
Part, the output end of the second level lead screw feeding unit are connected on the feeding connection component.
8. liquid carbon dioxide phase transformation fracturing device according to claim 7, it is characterised in that: the hydraulic feeding of level-one
Component includes hydraulic cylinder, extends support base, sliding seat and level-one feeding seat, wherein the hydraulic cylinder is fixed on the extension branch
One end of seat is supportted, on the lifting seat, the sliding seat is fixed on described for the setting for extending support base adjustable-angle
The tailpiece of the piston rod of hydraulic cylinder, and the sliding seat is slidably arranged along the sliding slot on the extension support base, the sliding seat
End be provided with the level-one and be sent into seat, the elastic connection seat is connected to the end that the level-one is sent into seat.
9. liquid carbon dioxide phase transformation fracturing device according to claim 8, it is characterised in that: the second level lead screw is sent into
Component includes being sent into frame plate, being sent into motor one, be sent into motor two, turbine and worm, be sent into lead screw and nut seat, wherein described to send
It is fixed on the elastic connection seat into frame plate by connecting column, the both sides of the side for being sent into frame plate are respectively arranged with one
Nut seat, nut on the nut seat using turbine and worm and the feedings motor one, be sent into the transmission connection of motor two, it is described
It is sent into lead screw to be threadedly engaged with the nut seat, the end for being sent into lead screw is connect with support is sent into, and passes through the feeding electricity
Machine one and feeding motor two drive the feeding lead screw mobile, realize the gradually feeding to pipe is sent into.
10. liquid carbon dioxide phase transformation fracturing device according to claim 9, it is characterised in that: when being sent into, first by two
The feeding lead screw of grade lead screw feeding unit is dismantled with support is sent into, and the feeding lead screw of second level lead screw feeding unit is retracted end,
Then the hydraulic feeding unit of level-one is sent into certain position, is reconnected so that being sent into lead screw and being sent into support, it is then sharp again
Advanced with second level lead screw feeding unit, realizes to being sent into section by section steadily for pipe is sent into, repeated later by second level lead screw feeding group
Part is retracted, and continues to repeat above-mentioned movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230614.3A CN109282707B (en) | 2018-10-22 | 2018-10-22 | Liquid carbon dioxide phase change fracturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230614.3A CN109282707B (en) | 2018-10-22 | 2018-10-22 | Liquid carbon dioxide phase change fracturing device |
Publications (2)
| Publication Number | Publication Date |
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| CN109282707A true CN109282707A (en) | 2019-01-29 |
| CN109282707B CN109282707B (en) | 2023-09-05 |
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| CN201811230614.3A Active CN109282707B (en) | 2018-10-22 | 2018-10-22 | Liquid carbon dioxide phase change fracturing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109723488A (en) * | 2019-03-05 | 2019-05-07 | 重庆大学 | Utilize the gas pumping method and extraction system of phase-change material auxiliary liquid nitrogen fracturing |
| CN110485980B (en) * | 2019-08-19 | 2020-05-08 | 重庆大学 | Intrinsically safe carbon dioxide fracturing and displacement integrated system |
| CN113338926A (en) * | 2021-04-30 | 2021-09-03 | 长沙领英智造科技有限公司 | Blasting rock cracking system and blasting rock cracking method |
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