CN113137229A - Underwater carbon dioxide rubber fracturing pipe and using method thereof - Google Patents
Underwater carbon dioxide rubber fracturing pipe and using method thereof Download PDFInfo
- Publication number
- CN113137229A CN113137229A CN202110603495.7A CN202110603495A CN113137229A CN 113137229 A CN113137229 A CN 113137229A CN 202110603495 A CN202110603495 A CN 202110603495A CN 113137229 A CN113137229 A CN 113137229A
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- Prior art keywords
- pipe
- rubber
- fracturing
- carbon dioxide
- inflation
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 67
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 230000005284 excitation Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011435 rock Substances 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 32
- 238000005336 cracking Methods 0.000 claims description 23
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pipe Accessories (AREA)
Abstract
The underwater carbon dioxide rubber fracturing pipe comprises a one-way inflation valve, an excitation pipe, a rubber fracturing pipe, an inflation extension pipe, a gasket, an excitation wire, a one-way inflation valve and an upper port, wherein the upper port is formed in the upper portion of the rubber fracturing pipe, the excitation pipe is installed into the rubber fracturing pipe from the upper port, the excitation pipe is connected with the excitation wire, the rubber fracturing pipe is in compression connection with the inflation extension pipe through a bolt and the gasket, the one-way inflation valve is installed at the upper end of the inflation extension pipe in a connected mode, the upper end of the one-way inflation valve is connected with an inflation steel pipe, and the inflation steel pipe extends out of the water surface. The method is suitable for the requirements of different pore diameters in the underwater carbon dioxide phase change rock breaking.
Description
Technical Field
The invention relates to the technical field of gas expansion and underwater rock breaking, in particular to an underwater carbon dioxide fracturing pipe and a using method thereof, and the underwater carbon dioxide fracturing pipe is suitable for being used in different underwater apertures of 90-150 mm.
Background
At present, the diameters of drill holes of drilling ships are not uniform, and the diameters of the drill holes are all 90-150 mm; the carbon dioxide who uses at present sends cracked tube structure to be rigid structure basically, is not suitable for filling under water moreover, and different drilling aperture need be joined in marriage different carbon dioxide and send cracked tube, causes purchase, storage, use inconvenient, and the hole fills outward and easily causes the construction accident. Therefore, there is a need to provide a new underwater carbon dioxide fracturing pipe suitable for different bore diameters to solve the above technical problems,
disclosure of Invention
The invention aims to provide an underwater carbon dioxide rubber fracturing pipe and a using method thereof, which are suitable for underwater carbon dioxide fracturing pipes with different apertures.
The invention adopts the following technical scheme to achieve the aim: the utility model provides an underwater carbon dioxide rubber fracturing pipe, constitution component includes one-way inflation valve, arouses tub, rubber fracturing pipe, aerifys extension pipe, fastening bolt, gasket, arouses electric wire, one-way inflation valve and upper portion port, and the concrete structure and the relation of connection of constitution component are: the upper end of the rubber fracturing pipe is provided with an upper port, the exciting pipe is arranged in the rubber fracturing pipe from the upper port, the exciting pipe is connected with an exciting electric wire, the rubber fracturing pipe is in compression connection with an inflatable extension pipe through a fastening bolt and a gasket, a one-way inflation valve is arranged on the inflatable extension pipe, the upper end of the one-way inflation valve is connected with the inflatable steel pipe, and the inflatable steel pipe extends out of the water surface.
The one-way inflation valve is composed of a one-way valve core, a return spring and a valve bottom bolt, wherein one end of the return spring is connected with the one-way valve core, and the other end of the return spring is connected with the valve bottom bolt.
The upper end of the one-way inflation valve is of a conical structure, and the conical end of the one-way valve core is propped against the valve port.
The upper and lower connecting threads of the one-way inflation valve are in positive and negative threaded connection.
The rubber cracking tube is suitable for filling liquid carbon dioxide in different hole drilling apertures of 90-150 mm.
And a rigid inflation extension pipe for plugging the closed fracturing pipe is arranged between the rubber fracturing pipe and the conical one-way inflation valve.
The using method of the underwater carbon dioxide rubber fracturing pipe comprises the following steps:
(1) installing an exciting tube, expanding the upper connecting port of the rubber fracturing tube, drawing out an internal exciting wire, inserting the exciting tube into the rubber fracturing tube from the expanded upper port, leaving the exciting wire of the exciting tube outside, connecting the exciting wire of the rubber fracturing tube with the exciting wire of the exciting tube, firmly binding the exciting wire, and putting the exciting wire back into the rubber fracturing tube;
(2) connecting the rubber cracking tube with an inflatable extension tube, inserting one end of the inflatable extension tube with a check ring from the expanded upper port, then loosening to tighten the upper port, sleeving a sealing gasket, and screwing a fastening bolt;
(3) installing a one-way inflation valve, winding a leakage-proof raw rubber belt on the upper end thread of the inflation extension pipe, then screwing the one-way inflation valve at the upper end of the inflation extension pipe, winding the leakage-proof raw rubber belt on the upper end thread of the inflation extension pipe, then winding the leakage-proof raw rubber belt on the lower thread of the inflation steel pipe, screwing the leakage-proof raw rubber belt on the one-way inflation valve, and finally connecting a carbon dioxide inflation hose to the inflation steel pipe;
(4) the first inflation, the mounted rubber fracturing pipe is sent to the bottom of the hole through a drill pipe, a carbon dioxide inflation valve is opened, the rubber fracturing pipe is expanded to be tightly attached to the wall of the hole through the first inflation, and the inflation valve is closed;
(5) injecting double-liquid quick-setting mortar which is prepared by cement and water glass and is not dispersed in water into the hole, wherein the grouting height does not exceed a one-way inflation valve, and reserving a strength test block;
(6) after the strength of the test block reaches 10Mpa, starting a carbon dioxide inflator to secondarily fill liquid carbon dioxide into the rubber fracturing pipe, and controlling the inflation pressure at 7-8 Mpa;
(7) and connecting excitation wires of the filled rubber fracturing pipes to a network, and connecting an ignition exciter to excite after the ship is moved to crush the rock.
Liquid carbon dioxide is filled twice in the rubber fracturing pipe, the first filling is to make the expansion of the rubber fracturing pipe cling to the hole wall, the fracturing pipe is prevented from floating, and the second filling is carried out after the plugging is finished.
The upper part of the rubber cracking tube is filled with double-liquid quick setting mortar which is prepared by cement and water glass and is not dispersed in water to fill and block the hole.
The invention has the outstanding advantages that:
1. the fracturing pipe of the invention is beneficial to restraining the fracturing pipe by using the self strength of rocks in a drilled hole, and the cost of the fracturing pipe is reduced.
2. Can be used in the drilling holes with the diameter of 90 mm-150 mm, and reduces the spare products and the varieties of the prepared materials in the construction.
3. In the fracturing pipe with the same length, because the annular clearance between the fracturing pipe and the hole wall is reduced, the filled liquid carbon dioxide is more in amount and higher in power.
4. The liquid carbon dioxide is filled in the hole, and the danger of open-air filling is avoided.
Drawings
Fig. 1 is a schematic structural view of an underwater carbon dioxide fracturing pipe of the present invention.
Fig. 2 is a schematic structural diagram of a one-way inflation valve of the underwater carbon dioxide cracking pipe.
Fig. 3 is a schematic diagram of an application layout of the underwater carbon dioxide cracking pipe.
FIG. 4 is a diagram of the status of the access hole of the underwater carbon dioxide cracking pipe of the present invention.
Fig. 5 is a diagram of the initial aeration state of the underwater carbon dioxide cracking pipe of the present invention.
Fig. 6 is a diagram of the hole plugging state of the underwater carbon dioxide fracturing pipe.
Labeled as: the device comprises a liquid carbon dioxide storage tank 1, a liquid carbon dioxide tank valve 2, a liquid carbon dioxide inflator 3, a liquid carbon dioxide inflation valve 4, an inflation hose 5, an inflation steel pipe 6, a one-way inflation valve 7, an excitation pipe 8, a rubber cracking pipe 9, an electric exciter 10, an inflation extension pipe 11, a drill hole 12, a fastening bolt 13, a gasket 14, an excitation wire 15, a one-way valve core 16, a reset spring 17, a valve bottom bolt 18, an upper port 19 of the rubber cracking pipe and double-liquid quick setting mortar 20.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
It should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" in the description of the present invention are to be construed broadly, and may be, for example, fixedly, detachably, or integrally, mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1 to 6, the underwater carbon dioxide fracturing pipe comprises a liquid carbon dioxide storage tank 1, a liquid carbon dioxide tank valve 2, a liquid carbon dioxide inflator 3, a liquid carbon dioxide inflation valve 4, an inflation hose 5, an inflation steel pipe 6, a one-way inflation valve 7, an excitation pipe 8, a rubber fracturing pipe 9, an electric exciter 10, an inflation extension pipe 11, a drill hole 12, a fastening bolt 13, a gasket 14, an excitation wire 15, a one-way valve core 16, a return spring 17, a valve bottom bolt 18, an upper port 19 of the rubber fracturing pipe, and double-liquid quick setting mortar 20. The concrete structure and the connection relation of the component members are as follows:
the carbon dioxide storage tank 1 is connected to a liquid carbon dioxide inflator 3 through a liquid carbon dioxide tank valve 2 and an inflation hose, the outlet of the liquid carbon dioxide inflator 3 is connected to a liquid carbon dioxide inflation valve 4, and then is connected to an inflation steel pipe 6 through an inflation hose 5. The inflatable steel pipe 6 is screwed on the one-way inflation valve 7 through threads, and the one-way inflation valve 7 is installed at the top of the inflatable extension pipe 11 and used for sealing an inflation inlet after inflation is finished and preventing carbon dioxide leakage. The gas-filled extension tube 11 is connected to the upper port 19 of the rubber cracking tube 9 by a fastening bolt 13 and a gasket 14.
The underwater carbon dioxide fracturing pipe comprises a one-way inflation valve 7, an excitation pipe 8, a rubber fracturing pipe 9, an inflation extension pipe 11, a fastening bolt 13, a gasket 14, an excitation wire 15, the one-way inflation valve 7 and an upper port 19 of the rubber fracturing pipe. The rubber cracking tube 9 is provided with an upper port 19, the exciting tube 8 is arranged in the rubber cracking tube 9 from the upper port 19, the exciting tube 8 is connected with an exciting wire 15, the rubber cracking tube 9 is in compression connection with the inflatable extension tube 11 through a fastening bolt 13 and a gasket 14, the upper end of the inflatable extension tube 11 is provided with a one-way inflation valve 7, the upper and lower connecting threads of the one-way inflation valve 7 are in positive and negative threaded connection, the upper end of the one-way inflation valve 7 is connected with the inflatable steel tube 6, and the inflatable steel tube 6 extends out of the water surface.
The one-way inflation valve is composed of a one-way valve core 16, a return spring 17 and a valve bottom bolt 18, one end of the return spring 17 is connected with the one-way valve core 16, the other end of the return spring 17 is connected with the valve bottom bolt 18, the upper end of the one-way valve core 16 is of a conical structure, and one conical end of the one-way valve core 16 props against a valve port to keep a sealed state.
The upper part of the rubber cracking tube is filled with double-liquid quick setting mortar which is prepared by cement and water glass and is not dispersed in water to fill and block the hole. The double-liquid quick-setting mortar 20 injected into the filling and plugging hole is injected into the hole after the initial inflation, and the injection height is smaller than the height of the one-way inflation valve 7 and is not smaller than 1000 mm.
Example 2
The embodiment is a using method of the underwater carbon dioxide fracturing pipe, and the using method comprises the following steps:
(1) installing an exciting tube, expanding an upper connecting port 19 of the rubber cracking tube 9, drawing out an inner exciting wire 15, inserting the exciting tube 8 into the rubber cracking tube 9 from the expanded upper port 19, paying attention to the fact that the exciting wire 15 of the exciting tube 8 is left outside, then connecting the exciting wire 15 of the rubber cracking tube 9 with the exciting wire of the exciting tube 1, firmly wrapping, and putting back the rubber cracking tube 9.
(2) Connecting the rubber cracking tube 9 with the inflatable extension tube 11, inserting one end of the inflatable extension tube 11 with a check ring from the expanded upper port 19, and then loosening to tighten the upper port 19; the sealing gasket 14 is sleeved and the fastening bolt 13 is screwed to prevent air leakage.
(3) Installing a one-way inflation valve 7 and an inflation extension pipe 11, screwing the one-way inflation valve 7 on the thread wound with the anti-leakage raw rubber belt at the upper end of the inflation extension pipe 11, screwing an inflation steel pipe 6 on the one-way inflation valve 7, and connecting a carbon dioxide inflation hose 5 on the inflation steel pipe 6.
(4) And (3) carrying out primary inflation, namely feeding the mounted rubber fractured pipe 9 into the bottom of the hole through a drill pipe, opening a carbon dioxide inflation valve (not starting an inflator) for primary inflation, and expanding the rubber fractured pipe 9 to be tightly attached to the wall of the drilled hole. I.e. the inflation valve is closed.
(5) And injecting double-liquid quick-setting mortar 20 which is prepared by cement and water glass and is not dispersed in water into the hole, wherein the grouting height is not more than the one-way inflation valve 7, and a strength test block is reserved.
(6) After the strength of the test block reaches 10Mpa, the carbon dioxide inflator 3 is started to secondarily fill liquid carbon dioxide into the rubber cracking tube 9, and the inflation pressure is controlled to be between 7 Mpa and 8 Mpa.
(7) And connecting excitation wires 15 of the filled rubber fracturing pipes 9 with a network, and connecting an ignition exciter 10 to excite after the ship is moved to crush the rock.
The working principle and the process are as follows:
the rubber cracking tube comprises a cavity for storing liquid carbon dioxide, an exciting tube for igniting and heating, an inflation extension tube of a plugging section and a one-way inflation valve. Drilling a hole from a drilling and blasting ship to underwater rock in construction, then installing the assembled underwater carbon dioxide fracturing pipe in the hole, and preventing the underwater carbon dioxide fracturing pipe from floating up through primary inflation expansion; the double-liquid quick-setting mortar which is prepared by injecting cement and water glass into the hole and is not dispersed in water is used for preventing the gas from leaking too early after excitation and adding atmospheric pressure. The high-energy combustion agent in the exciting tube is ignited by the igniting tube to generate a large amount of heat, so that the liquid carbon dioxide in the rubber cracking tube is gasified and phase-changed into a gas state, the temperature of the carbon dioxide gas is increased, the pressure in the hole is rapidly increased, and the rock is crushed and thrown under the action of huge gas pressure. Compared with explosive blasting, the rock breaking mechanism is quasi-static rock breaking, the generated vibration, noise and shock waves in water are very small, and the distance between individual flying stones is short; has good protection effect on nearby buildings, structures, facilities and aquatic organisms.
Claims (8)
1. The utility model provides an underwater carbon dioxide rubber fracturing pipe, constitution component includes one-way inflation valve, arouses tub, rubber fracturing pipe, aerifys extension pipe, fastening bolt, gasket, arouses electric wire, one-way inflation valve and upper portion port, its characterized in that, the concrete structure and the relation of connection of constitution component are: the rubber fracturing pipe is provided with an upper port, the exciting pipe is arranged in the rubber fracturing pipe from the upper port, the exciting pipe is connected with an exciting electric wire, the rubber fracturing pipe is in compression connection with the inflatable extension pipe through a fastening bolt and a gasket, the inflatable extension pipe is provided with a one-way inflation valve, the upper end of the one-way inflation valve is connected with the inflatable steel pipe, and the inflatable steel pipe extends out of the water surface.
2. The underwater carbon dioxide rubber fracturing pipe of claim 1, wherein the one-way inflation valve is composed of a one-way valve core, a return spring and a valve bottom bolt, one end of the return spring is connected with the one-way valve core, and the other end of the return spring is connected with the valve bottom bolt.
3. The underwater carbon dioxide rubber fracturing tube of claim 1, wherein the upper end of the one-way inflation valve is of a conical structure, and the conical end of the one-way valve core is abutted against the valve port.
4. The underwater carbon dioxide rubber fracturing tube of claim 1, wherein the upper and lower connecting threads of the one-way inflation valve are a positive and negative threaded connection.
5. The underwater carbon dioxide fracturing pipe of claim 1, wherein the rubber fracturing pipe is suitable for filling liquid carbon dioxide in different hole drilling hole diameters of 90-150 mm.
6. The underwater carbon dioxide fracturing pipe of claim 1, wherein a rigid inflatable extension pipe for plugging the closed fracturing pipe is arranged between the rubber fracturing pipe and the conical one-way inflation valve.
7. The method of using an underwater carbon dioxide rubber fracturing pipe as claimed in claim 1, comprising the steps of:
(1) installing an exciting tube, expanding the upper connecting port of the rubber fracturing tube, drawing out an internal exciting wire, inserting the exciting tube into the rubber fracturing tube from the expanded upper port, leaving the exciting wire of the exciting tube outside, connecting the exciting wire of the rubber fracturing tube with the exciting wire of the exciting tube, firmly binding the exciting wire, and putting the exciting wire back into the rubber fracturing tube;
(2) connecting the rubber cracking tube with an inflatable extension tube, inserting one end of the inflatable extension tube with a check ring from the expanded upper port, then loosening to tighten the upper port, sleeving a sealing gasket, and screwing a fastening bolt;
(3) installing a one-way inflation valve, winding a leakage-proof raw rubber belt on the upper end thread of the inflation extension pipe, then screwing the one-way inflation valve at the upper end of the inflation extension pipe, winding the leakage-proof raw rubber belt on the upper end thread of the inflation extension pipe, then winding the leakage-proof raw rubber belt on the lower thread of the inflation steel pipe, screwing the leakage-proof raw rubber belt on the one-way inflation valve, and finally connecting a carbon dioxide inflation hose to the inflation steel pipe;
(4) the first inflation, the mounted rubber fracturing pipe is sent to the bottom of the hole through a drill pipe, a carbon dioxide inflation valve is opened, the rubber fracturing pipe is expanded to be tightly attached to the wall of the hole through the first inflation, and the inflation valve is closed;
(5) injecting double-liquid quick-setting mortar which is prepared by cement and water glass and is not dispersed in water into the hole, wherein the grouting height does not exceed a one-way inflation valve, and reserving a strength test block;
(6) after the strength of the test block reaches 10Mpa, starting a carbon dioxide inflator to secondarily fill liquid carbon dioxide into the rubber fracturing pipe, and controlling the inflation pressure at 7-8 Mpa;
(7) and connecting excitation wires of the filled rubber fracturing pipes to a network, and connecting an ignition exciter to excite after the ship is moved to crush the rock.
8. The underwater carbon dioxide fracturing pipe according to claim 1, wherein the rubber fracturing pipe is filled with liquid carbon dioxide twice, the first filling is performed by enabling the rubber fracturing pipe to expand and cling to the wall of the hole to prevent the fracturing pipe from floating upwards, and the second filling is performed after plugging is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603495.7A CN113137229A (en) | 2021-05-31 | 2021-05-31 | Underwater carbon dioxide rubber fracturing pipe and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603495.7A CN113137229A (en) | 2021-05-31 | 2021-05-31 | Underwater carbon dioxide rubber fracturing pipe and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113137229A true CN113137229A (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110603495.7A Pending CN113137229A (en) | 2021-05-31 | 2021-05-31 | Underwater carbon dioxide rubber fracturing pipe and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877753A (en) * | 2022-05-09 | 2022-08-09 | 广西新港湾工程有限公司 | Underwater carbon dioxide rock breaking pipe and using method |
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2021
- 2021-05-31 CN CN202110603495.7A patent/CN113137229A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877753A (en) * | 2022-05-09 | 2022-08-09 | 广西新港湾工程有限公司 | Underwater carbon dioxide rock breaking pipe and using method |
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