CN116007444A - Liquid carbon dioxide fracturing device with fly stopping device - Google Patents
Liquid carbon dioxide fracturing device with fly stopping device Download PDFInfo
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- CN116007444A CN116007444A CN202211709829.XA CN202211709829A CN116007444A CN 116007444 A CN116007444 A CN 116007444A CN 202211709829 A CN202211709829 A CN 202211709829A CN 116007444 A CN116007444 A CN 116007444A
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- energy
- main pipe
- carbon dioxide
- liquid carbon
- flying
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 41
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 41
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 238000002955 isolation Methods 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 19
- 230000005284 excitation Effects 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims description 27
- 238000004146 energy storage Methods 0.000 claims description 17
- 239000003245 coal Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000011435 rock Substances 0.000 description 6
- 230000002265 prevention Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 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
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 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
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- Carbon And Carbon Compounds (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a liquid carbon dioxide fracturing device with a flying stop device, which comprises the following components: a main pipe, wherein the inner cavity of the main pipe is filled with liquid carbon dioxide; the energy release device is fixedly connected and communicated with one end of the main pipe; the energy isolation release device is arranged in the cavity of the main pipe and is positioned between the liquid carbon dioxide and the energy release device; the excitation device is fixedly arranged at one end of the main pipe far away from the energy release device, and is electrically connected with a heating component which is arranged in the inner cavity of the main pipe; the anti-flying device comprises an anti-flying winding drum which is sleeved and connected to the outer wall of the main pipe in a sliding way, and one end of the anti-flying winding drum, which is far away from the energy release device, is unfolded in a contracted shape after being stressed.
Description
Technical Field
The invention relates to the technical field of blasting devices, in particular to a liquid carbon dioxide fracturing device with a flying stopping device.
Background
Coal is used as main energy source in China, is also an important industrial raw material in China, and plays an important role in industrial development and economic growth. Along with the development of the age, the requirement on energy is higher and higher, and how to more efficiently utilize coal resources to achieve coal and gas co-mining is a hot spot for developing and utilizing the coal resources at present. Compared with the petroleum and natural gas surface extraction technology, natural gas has good fluidity due to its own properties, and is in most cases present in a state floating above liquid petroleum. Whereas gas is a non-flowing gas and is in most cases adsorbed on solid surfaces or in fractures of coal seams due to geological conditions limitations, in an adsorbed state. Therefore, the gas drainage is more difficult than natural gas, and the gas can be converted into a free state from an adsorption state only when the coal bed structure and the coal bed environment with the temperature increased are changed, so that the gas drainage is facilitated.
The carbon dioxide fracturing device utilizes the phase change fracturing of carbon dioxide, takes the energy difference of supercritical carbon dioxide and gaseous carbon dioxide as the rock breaking power, enables the liquid carbon dioxide to be firstly converted into the supercritical state by heat absorption in the fracturing process, and then is decompressed and expanded to become high-pressure gas to break the coal bed so as to achieve the effect of extracting gas. In addition, open fire, destructive vibration and shock waves are not generated in the operation process, the possibility of explosion of gas when encountering fire is not considered, and the influence on the surrounding environment is not great.
When the existing carbon dioxide fracturing device breaks rock, holes are drilled firstly, then the carbon dioxide fracturing device is inserted into the fracturing holes, a large amount of gas generated by gasification of liquid carbon dioxide when the carbon dioxide fracturing device works is sprayed out by a release head, high-pressure gas accumulates at the bottom of the holes at the moment of blasting, the fracturing device applies force to the outside of the holes in a narrow space, when a coal seam is fractured by large impact force, the phenomenon of 'flying tube' of the fracturing device is easily induced, the rock breaking efficiency is reduced, great potential safety hazards are brought to external personnel and mechanical equipment, and the fracturing device with 'flying tube' is possibly damaged, is unfavorable for repeated use, and further affects the economic effect.
Disclosure of Invention
The invention aims to provide a liquid carbon dioxide fracturing device with a flying stopping device, and aims to solve or improve at least one of the technical problems.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a liquid carbon dioxide fracturing device with a flying-stopping device, which comprises the following components:
the main pipe is filled with liquid carbon dioxide in the inner cavity of the main pipe;
the energy release device is fixedly connected and communicated with one end of the main pipe;
the energy isolation release device is arranged in the main pipe cavity and is positioned between the liquid carbon dioxide and the energy release device;
the excitation device is fixedly arranged at one end of the main pipe far away from the energy release device, and is electrically connected with a heating component which is arranged in the inner cavity of the main pipe;
the anti-flying device comprises an anti-flying winding drum which is sleeved and connected with the outer wall of the main pipe in a sliding manner, and one end, far away from the energy release device, of the anti-flying winding drum is unfolded in a shrinkage mode after being stressed.
Preferably, the energy discharging device comprises an energy discharging head fixedly connected to one end of the main pipe, an energy discharging channel is formed in the energy discharging head and communicated with the inner cavity of the main pipe, a plurality of energy discharging ports are formed in the energy discharging head, and the energy discharging channel is communicated with the outside through the energy discharging ports.
Preferably, the energy isolation release device comprises a constant pressure fracture plate and an isolation release door, wherein the constant pressure fracture plate and the isolation release door are fixedly arranged in the inner cavity of the main pipe, and the isolation release door is positioned between the energy release head and the constant pressure fracture plate.
Preferably, the pressure control display is fixedly arranged on the isolation release door.
Preferably, an energy storage channel communicated with the inner cavity of the main pipe is arranged in one end of the main pipe far away from the energy discharging head, the energy storage channel extends to the outside of the main pipe, and an energy storage valve is fixedly arranged in the energy storage channel.
Preferably, the heating component comprises a heater, the heater is fixedly arranged in an inner cavity of one end of the main pipe far away from the energy discharging head, and the heater is electrically connected with the excitation device through a cable.
Preferably, a limiting groove is formed in the circumferential direction of the outer wall of the main pipe, a movable base is connected in the limiting groove in a sliding mode, and one end of the anti-flying winding drum, which is close to the energy discharging head, is hinged to the movable base.
Preferably, the flying stop winding drum is formed by a plurality of flying stop sheets in umbrella shape.
The invention discloses the following technical effects: the heating component is controlled by the excitation device to enable the liquid carbon dioxide to react to generate pressure, the burst energy isolation release device is released by the energy release device, the effect of fracturing surrounding rock mass and coal mass is achieved, when huge air pressure generates thrust to the outside of a drill hole, the flying prevention winding drum is stressed to be expanded from a contracted shape to a circular table shape and clamped in a coal bed around the fracturing device until the main pipe slides out to reach a pole, the flying prevention winding drum shape is gradually changed from the circular table shape to a circle along with the increase of the outward thrust, the larger the expansion angle of the flying prevention winding drum is clamped deeper into the coal bed depth when the stress is larger, the good flying prevention effect is achieved, and the flying of the fracturing device from the outside direction of the drill hole can be effectively prevented from generating potential safety hazards to surrounding personnel and machinery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an expanded view of the anti-fly device of the present invention;
FIG. 3 is a schematic illustration of the fly roll of the present invention as it is retracted;
in the figure: 1. an energy release port; 2. a pressure control display; 3. an energy release head; 4. a main pipe; 5. an energy release channel; 6. a movable base; 7. a fly-stopping reel; 8. a limit groove; 9. liquid carbon dioxide; 10. an energy storage channel; 11. an energy storage valve; 12. an excitation device; 13. a cable; 14. a heater; 15. an energy isolation release device; 16. an isolation release door; 17. constant pressure rupture disc; 18. and a fly-stopping sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-3, the present embodiment provides a liquid carbon dioxide cracker with a fly stopping device, comprising:
the main pipe 4, the cavity of the main pipe 4 is filled with liquid carbon dioxide 9;
the energy release device is fixedly connected and communicated with one end of the main pipe 4;
the energy isolation release device 15 is arranged in the inner cavity of the main pipe 4, and the energy isolation release device 15 is positioned between the liquid carbon dioxide 9 and the energy release device;
the excitation device 12 is fixedly arranged at one end of the main pipe 4 far away from the energy release device, the excitation device 12 is electrically connected with a heating component, and the heating component is arranged in the inner cavity of the main pipe 4;
the anti-flying device comprises an anti-flying winding drum 7, wherein the anti-flying winding drum 7 is sleeved and connected to the outer wall of the main pipe 4 in a sliding manner, and one end, far away from the energy release device, of the anti-flying winding drum 7 is unfolded in a shrinkage mode after being stressed.
The excitation device 12 controls the heating component to enable the liquid carbon dioxide 9 to react to generate pressure, the burst energy isolation release device 15 is released by the energy release device to achieve the effect of fracturing surrounding rock mass and coal mass, when huge air pressure generates thrust to the outside of a drill hole, the anti-flying reel 7 is forced to expand from a contracted shape to a circular table shape and is clamped in a coal bed around the fracturing device until the main pipe 4 slides to reach a pole, the shape of the anti-flying reel 7 gradually changes from the circular table shape to a circle along with the increase of the outward thrust, the greater the expansion angle of the anti-flying reel 7 is, the deeper the depth of the anti-flying reel 7 is clamped into the coal bed, the good anti-flying effect is achieved, and the fracturing device can be effectively prevented from flying out from the outside direction of the drill hole.
Furthermore, a small amount of sand can be placed in the main pipe 4 when the liquid carbon dioxide 9 is filled, the liquid carbon dioxide 9 and a small amount of sand particles are mixed for use, and the main pipe is used for supporting cracks of holes, so that the fracturing effect is better, the duration time is longer, and the methane extraction rate is higher.
Further optimizing scheme, let out can the device and include letting out can the head 3, let out can the head 3 rigid coupling and be responsible for 4 one end, let out and offer in letting out can the head 3 and let out can passageway 5, let out can passageway 5 and be responsible for 4 inner chamber intercommunication, let out and offer a plurality of and let out can mouthful 1 on letting out can the head 3, let out can passageway 5 and external intercommunication through letting out can mouthful 1.
The energy discharging channel 5 is used for better concentrating energy, providing a direction for the energy, and releasing gas from the energy discharging ports 1 to the outside, so as to achieve the effect of fracturing the whole range of the fracturing pipe in the drill hole, and solve the problems of low fracturing efficiency and low gas extraction rate in the coal seam of the existing fracturing technology of the coal mine.
In a further optimization scheme, the energy isolation release device 15 comprises a constant pressure fracture plate 17 and an isolation release door 16, wherein the constant pressure fracture plate 17 and the isolation release door 16 are fixedly arranged in the inner cavity of the main pipe 4, and the isolation release door 16 is positioned between the energy release head 3 and the constant pressure fracture plate 17; the pressure control display 2 is fixedly mounted on the isolation release door 16.
The pressure control display 2 can accurately control the pressure in the main pipe and monitor the pressure change in the main pipe 4, so that the pressure and the energy released by the fracturing device are more accurate and controllable, the controlled pressure is safer and more reliable, the pressure in the main pipe 4 breaks the fixed pressure fracture plate 17 when reaching a certain peak value, and the pressure enters the energy release channel 5 through the isolation release door 16.
According to a further optimization scheme, an energy storage channel 10 communicated with the inner cavity of the main pipe 4 is arranged in one end, far away from the energy discharging head 3, of the main pipe 4, the energy storage channel 10 extends to the outside of the main pipe 4, and an energy storage valve 11 is fixedly arranged in the energy storage channel 10.
The opening and closing of the energy storage channel 10 is controlled by the energy storage valve 11, and liquid carbon dioxide 9 is injected into the main pipe 4 through the energy storage channel.
Further optimizing scheme, the heating element includes the heater 14, and heater 14 fixed mounting is in the one end inner chamber that is far away from letting out energy head 3 in being responsible for 4, and heater 14 passes through cable 13 and excitation device 12 electric connection.
The excitation device 12 controls the heater 14 to generate heat through the cable 13, thereby heating the liquid carbon dioxide 9 in the main pipe 4 and causing the liquid carbon dioxide 9 to react.
Further, the cable 13 is arranged inside the main pipe 4, the electric wires are connected by a hidden wire, open fire cannot occur in the operation process, and the circuit system is stable and reliable.
Further optimizing scheme, the limit groove 8 has been seted up to the circumference of being responsible for 4 outer walls, and sliding connection has the removal base 6 in the limit groove 8, and the one end that the reel 7 that ends that is close to letting out can the head 3 articulates with the removal base 6.
The position and the sliding distance of the movable base 6 can be limited by arranging the limiting groove 8, the flying-stopping winding drum 7 can be contracted into an umbrella shape and placed in the limiting groove 8 to be clung to the cracking device, and the cracking device is convenient to store.
Further optimizing scheme, the fly-stopping winding drum 7 is composed of a plurality of fly-stopping sheets 18 in umbrella shape.
The plurality of flying stop sheets 18 are hinged at the long sides in sequence to form a final movable folding umbrella, the single flying stop sheet 18 is preferably approximately trapezoidal, the single flying stop sheet 18 and the movable base 6 are in a hinged state (refer to the umbrella structure specifically, the umbrella is just like an undeployed shape when not stressed, and the umbrella is just like a stretched shape when stressed).
Furthermore, the main pipe 4 and the anti-flying piece 18 are preferably made of high-strength steel materials, can bear the pressure of at least 170MPa, have high hardness, are not easy to damage, have long service life, and are used for expanding and clamping the anti-flying reel 7 into a coal seam during operation, applying reaction force to the whole fracturing device for counteracting the thrust generated by huge air pressure and outwards from a hole, so that the effect of fixing the position of the fracturing device in a drilled hole is achieved.
Working principle: when in fracturing operation, the excitation device 12 releases current through the cable 13, the heater 14 in the main pipe 4 is excited by the current to start heating, the liquid carbon dioxide 9 in the main pipe 4 is heated to be converted into a supercritical state from a liquid state to generate huge pressure, the constant pressure fracture piece 17 in the energy isolation release device 15 is broken when the pressure in the pipe reaches a certain peak value, the energy in the main pipe 4 is instantaneously and automatically released, the gas breaks the constant pressure fracture piece 17 and enters the energy release channel 5, the energy release opening 1 arranged on the energy release channel 5 is released, the effect of fracturing surrounding rock mass and coal mass is achieved, huge air pressure generates thrust to the outside of a drill hole, the anti-flying reel 7 is expanded from a contracted state to a circular table shape and is clamped in a coal bed around the fracturing device, the movable base 6 moves along with the expansion of the anti-flying reel 7 until the front end of the limit groove 8 is reached, the shape of the anti-flying reel 7 is gradually converted from a circular table shape to a circular table shape along with the increase of the outward thrust, and the larger expansion angle of the anti-flying reel 7 is clamped into the depth of the coal bed along with the increase of the outward thrust.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (8)
1. A liquid carbon dioxide cracker having a fly-stopping means, comprising:
the main pipe (4), the cavity of the main pipe (4) is filled with liquid carbon dioxide (9);
the energy release device is fixedly connected and communicated with one end of the main pipe (4);
the energy isolation release device (15) is arranged in the inner cavity of the main pipe (4), and the energy isolation release device (15) is positioned between the liquid carbon dioxide (9) and the energy release device;
the excitation device (12), the excitation device (12) is fixedly arranged at one end of the main pipe (4) far away from the energy release device, the excitation device (12) is electrically connected with a heating component, and the heating component is arranged in the inner cavity of the main pipe (4);
the anti-flying device comprises an anti-flying winding drum (7), wherein the anti-flying winding drum (7) is sleeved and connected with the outer wall of the main pipe (4) in a sliding mode, and one end, far away from the energy release device, of the anti-flying winding drum (7) is unfolded in a shrinkage mode after being stressed.
2. A liquid carbon dioxide cracker with a fly-stopping device according to claim 1, wherein: the energy discharging device comprises an energy discharging head (3), the energy discharging head (3) is fixedly connected to one end of the main pipe (4), an energy discharging channel (5) is formed in the energy discharging head (3), the energy discharging channel (5) is communicated with the inner cavity of the main pipe (4), a plurality of energy discharging ports (1) are formed in the energy discharging head (3), and the energy discharging channel (5) is communicated with the outside through the energy discharging ports (1).
3. A liquid carbon dioxide cracker with a fly-stopping device according to claim 2, wherein: the energy isolation release device (15) comprises a constant pressure fracture piece (17) and an isolation release door (16), wherein the constant pressure fracture piece (17) and the isolation release door (16) are fixedly installed in the inner cavity of the main pipe (4), and the isolation release door (16) is located between the energy release head (3) and the constant pressure fracture piece (17).
4. A liquid carbon dioxide cracker with a fly-stopping device according to claim 3, wherein: the pressure control display (2) is fixedly arranged on the isolation release door (16).
5. A liquid carbon dioxide cracker with a fly-stopping device according to claim 2, wherein: an energy storage channel (10) communicated with the inner cavity of the main pipe (4) is arranged in one end, far away from the energy discharging head (3), of the main pipe (4), the energy storage channel (10) extends to the outside of the main pipe (4), and an energy storage valve (11) is fixedly arranged in the energy storage channel (10).
6. A liquid carbon dioxide cracker with a fly-stopping device according to claim 2, wherein: the heating component comprises a heater (14), the heater (14) is fixedly arranged in an inner cavity of one end of the main pipe (4) far away from the energy discharging head (3), and the heater (14) is electrically connected with the excitation device (12) through a cable (13).
7. A liquid carbon dioxide cracker with a fly-stopping device according to claim 2, wherein: limiting grooves (8) are formed in the circumferential direction of the outer wall of the main pipe (4), a movable base (6) is connected in the limiting grooves (8) in a sliding mode, and one end, close to the energy discharging head (3), of the anti-flying winding drum (7) is hinged to the movable base (6).
8. A liquid carbon dioxide cracker with a fly-stopping device according to claim 1, wherein: the flying stop winding drum (7) is formed by a plurality of flying stop sheets (18) in an umbrella shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709829.XA CN116007444B (en) | 2022-12-29 | 2022-12-29 | Liquid carbon dioxide fracturing device with fly stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709829.XA CN116007444B (en) | 2022-12-29 | 2022-12-29 | Liquid carbon dioxide fracturing device with fly stopping device |
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| Publication Number | Publication Date |
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| CN116007444A true CN116007444A (en) | 2023-04-25 |
| CN116007444B CN116007444B (en) | 2024-05-24 |
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| CN202211709829.XA Active CN116007444B (en) | 2022-12-29 | 2022-12-29 | Liquid carbon dioxide fracturing device with fly stopping device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066801A (en) * | 2015-08-05 | 2015-11-18 | 河北亿科金属制品有限公司 | Carbon dioxide fracturing device |
| CN105604550A (en) * | 2016-03-14 | 2016-05-25 | 山东名世矿业机械有限公司 | Carbon dioxide fracturer |
| CN110939441A (en) * | 2019-12-03 | 2020-03-31 | 中国地质大学（武汉） | Carbon dioxide phase change fracturing device with fly stopper |
| AU2020102179A4 (en) * | 2020-06-09 | 2020-10-15 | Shanxi Xinqiao Technology Co., Ltd. | Release tube of carbon dioxide fracturing tube and carbon dioxide fracturing tube |
| CN214950920U (en) * | 2021-05-18 | 2021-11-30 | 武汉大通工程建设有限公司 | Carbon dioxide phase change fracturing device with fly stopper |
| CN114000858A (en) * | 2021-11-12 | 2022-02-01 | 中煤华晋集团有限公司王家岭分公司 | Combinable multi-pipe type liquid carbon dioxide fracturing device and using method thereof |
-
2022
- 2022-12-29 CN CN202211709829.XA patent/CN116007444B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066801A (en) * | 2015-08-05 | 2015-11-18 | 河北亿科金属制品有限公司 | Carbon dioxide fracturing device |
| CN105604550A (en) * | 2016-03-14 | 2016-05-25 | 山东名世矿业机械有限公司 | Carbon dioxide fracturer |
| CN110939441A (en) * | 2019-12-03 | 2020-03-31 | 中国地质大学（武汉） | Carbon dioxide phase change fracturing device with fly stopper |
| AU2020102179A4 (en) * | 2020-06-09 | 2020-10-15 | Shanxi Xinqiao Technology Co., Ltd. | Release tube of carbon dioxide fracturing tube and carbon dioxide fracturing tube |
| CN214950920U (en) * | 2021-05-18 | 2021-11-30 | 武汉大通工程建设有限公司 | Carbon dioxide phase change fracturing device with fly stopper |
| CN114000858A (en) * | 2021-11-12 | 2022-02-01 | 中煤华晋集团有限公司王家岭分公司 | Combinable multi-pipe type liquid carbon dioxide fracturing device and using method thereof |
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