CN109469464B - Carbon dioxide injection device for carbon dioxide flooding - Google Patents
Carbon dioxide injection device for carbon dioxide flooding Download PDFInfo
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- CN109469464B CN109469464B CN201811267136.3A CN201811267136A CN109469464B CN 109469464 B CN109469464 B CN 109469464B CN 201811267136 A CN201811267136 A CN 201811267136A CN 109469464 B CN109469464 B CN 109469464B
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- carbon dioxide
- pipe
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- inlet pipe
- air inlet
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 71
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 71
- 238000002347 injection Methods 0.000 title claims abstract description 33
- 239000007924 injection Substances 0.000 title claims abstract description 33
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
-
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a carbon dioxide injection device for carbon dioxide flooding, which comprises a fixed seat, a support column, a fixed column, an electro-hydraulic push rod, a connecting cylinder, a connecting rod, a supporting seat, a rolling cylinder, a fixed cylinder, a moving rod, an exhaust shell, an electric push rod, a piston, scale marks, a first air inlet pipe, a first one-way valve, a second air inlet pipe, a second one-way valve, a main air inlet pipe, a flange, an exhaust pipe, a carbon dioxide storage tank, an air outlet pipe, a third one-way valve, a connecting air pipe, a first air guide pipe, a second air guide pipe and a conical air pipe head. This kind of carbon dioxide injection device that carbon dioxide displacement of reservoir oil was used simple structure is convenient for continuously inject into carbon dioxide gas, ensures carbon dioxide gas simultaneously and steadily orderly injects into, improves carbon dioxide gas's the efficiency of supplying with that lasts, promotes the supporting seat through the electric liquid push rod and adjusts the wheel that rolls and push up the fixing base, and the worker of being convenient for promotes the device and removes, very big reduction worker mobile device's intensity of labour.
Description
Technical Field
The invention relates to a carbon dioxide injection device, in particular to a carbon dioxide injection device for carbon dioxide flooding, and belongs to the technical field of carbon dioxide flooding application.
Background
The carbon dioxide flooding technology is a technology for injecting carbon dioxide into an oil layer to improve the oil recovery rate of an oil field; the carbon dioxide does not form a miscible front when it first contacts the formation crude oil, but under the appropriate conditions of pressure, temperature and crude oil composition, the carbon dioxide can form a miscible front. The supercritical fluid will extract heavier hydrocarbons from the crude oil and continually condense the gas displacing the front.
There are a lot of problems in the injection process of carbon dioxide in oil gas well, if current carbon dioxide device is at carbon dioxide injection in-process, the in-process that carbon dioxide injected into the oil gas well can not be constantly injected into, very big influence goes out oil effect in the oil gas well, and the device is when using simultaneously, needs the manual work to carry adjusting position, very big increase labourer's the amount of labour, and current gas injection pipeline length adjustment of not being convenient for, influence the application range of device, be not convenient for use. Therefore, a carbon dioxide injection device for carbon dioxide flooding is proposed to solve the above problems.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a carbon dioxide injection device for carbon dioxide flooding.
The invention achieves the aim through the following technical scheme, and the carbon dioxide injection device for carbon dioxide flooding comprises a fixed seat, a support column, a fixed column, a moving mechanism and a gas injection mechanism;
a support column is fixedly connected to the middle of the top side of the fixed seat, and a fixed cylinder is fixedly connected to one side of the top end of the support column; the other end of the fixed cylinder is fixedly connected with the side surface of an exhaust shell made of transparent material; a fixed column is fixedly connected to the side surface of the bottom end of the supporting column, and a first air duct is fixedly connected to the tail end of the fixed column; the surface of the exhaust shell is provided with scale marks;
the moving mechanism comprises an electro-hydraulic push rod, a connecting cylinder, a connecting rod, a supporting seat and a rolling cylinder, and the electro-hydraulic push rod is fixedly connected to the middle of the inner wall of a placing groove formed in the bottom of the fixing seat; the output end of the electro-hydraulic push rod is fixedly connected with a supporting seat, and the top of the supporting seat is fixedly connected with a connecting rod; the top end of the connecting rod is in sliding connection with an inner cavity of the connecting cylinder fixed on the placing inner wall; the bottom of the supporting seat is connected with a rolling cylinder in a rolling way;
the gas injection mechanism comprises a moving rod, an exhaust shell, an electric push rod, a gas outlet pipe, a first gas guide pipe and a second gas guide pipe, and one end of the moving rod is connected with the inner cavity of the fixed cylinder in a sliding manner; one side of the exhaust shell is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a piston in the exhaust shell; the other side of the piston is fixedly connected with one end of the movable rod; the top of the right side of the exhaust shell is fixedly communicated with the tail end of the first air inlet pipe, and the top of the left side of the exhaust shell corresponding to the exhaust shell is fixedly communicated with the tail end of the second air inlet pipe; a first check valve is arranged in the first air inlet pipe; a second one-way valve is arranged in the second air inlet pipe; the other ends of the first air inlet pipe and the second air inlet pipe are uniformly and fixedly communicated with the main air inlet pipe, and the tail end of the main air inlet pipe is connected with a flange; a carbon dioxide storage tank is arranged on the left side of the exhaust shell, and an exhaust pipe is fixedly communicated with the top end of the carbon dioxide storage tank; the top end of the exhaust pipe is connected with a flange of the main air inlet pipe; the bottom of the side surface of the exhaust shell is fixedly communicated with an air outlet pipe, and a third one-way valve is arranged in the air outlet pipe; the tail end of the air outlet pipe is fixedly communicated with the connecting air pipe, and the bottom end of the connecting air pipe is fixedly communicated with the first air guide pipe; the inner wall of the bottom end of the first air duct is connected with the second air duct in a sliding manner; the tail end of the second air duct is fixedly communicated with a conical air pipe head.
Preferably, the number of the connecting cylinders is two, and the two connecting cylinders are symmetrically distributed around the electro-hydraulic push rod.
Preferably, the plane of the bottom end of the rolling cylinder is higher than the plane of the bottom of the fixed seat.
Preferably, the sum of the length dimension of the connecting cylinder and the length dimension of the connecting rod is greater than the depth of the placement groove.
Preferably, the bottom surface of the fixing seat is provided with a placing groove, and the inner wall of the placing groove is connected with a supporting seat in a sliding manner.
Preferably, the movable rod is connected with the side surface of the exhaust shell in a sliding mode, the length of the movable rod is larger than that of the inner cavity of the exhaust shell, and the length of the movable rod is smaller than that of the fixed cylinder.
Preferably, the piston is slidably connected with the inner cavity of the exhaust shell.
Preferably, the number of the air outlet pipes is two, and the two air outlet pipes are respectively and fixedly communicated with the inner cavities at two opposite sides of the exhaust shell.
Preferably, the length of the first airway tube is equal to the length of the second airway tube.
Preferably, one side of the exhaust shell connected with the first air inlet pipe and one side of the exhaust shell connected with the second air inlet pipe are both connected with air outlet pipes.
The invention has the beneficial effects that:
1. this kind of carbon dioxide injection device that carbon dioxide displacement of reservoir oil was used simple structure, modern design are convenient for constantly inject into carbon dioxide gas, ensure the stable orderly injection of carbon dioxide gas simultaneously, improve carbon dioxide gas's the efficiency of supplying with continuously, do benefit to the worker and use.
2. When using, promote the supporting seat through electric liquid push rod and adjust the wheel that rolls and push up the fixing base, the worker of being convenient for promotes the device and removes, and very big reduction worker mobile device's intensity of labour ensures the device stable fixation when placing simultaneously, and the device of being convenient for uses steadily.
3. When the air guide tube is used, the moving length of the second air guide tube in the first air guide tube is convenient to adjust, the total length of the air guide tube is convenient to adjust, the application range of the air guide tube is improved, the practical value is high, and the air guide tube is suitable for popularization and application.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the surface structure of the exhaust housing of the present invention;
FIG. 3 is a schematic view of a bottom surface connection structure of the fixing base according to the present invention.
In the figure: 1. the device comprises a fixed seat, 2, a support column, 3, a fixed column, 4, an electro-hydraulic push rod, 5, a connecting cylinder, 6, a connecting rod, 7, a supporting seat, 8, a rolling cylinder, 9, a fixed cylinder, 10, a moving rod, 11, an exhaust shell, 12, an electric push rod, 13, a piston, 14, a scale mark, 15, a first air inlet pipe, 16, a first one-way valve, 17, a second air inlet pipe, 18, a second one-way valve, 19, a main air inlet pipe, 20, a flange, 21, an exhaust pipe, 22, a carbon dioxide storage tank, 23, an exhaust pipe, 24, a third one-way valve, 25, a connecting air pipe, 26, a first air guide pipe, 27, a second air guide pipe, 28 and a conical.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a carbon dioxide injection device for carbon dioxide flooding includes a fixing base 1, a supporting column 2, a fixing column 3, a moving mechanism and an air injection mechanism;
a support column 2 is fixedly connected to the middle of the top side of the fixed seat 1, and a fixed cylinder 9 is fixedly connected to one side of the top end of the support column 2; the other end of the fixed cylinder 9 is fixedly connected with the side surface of an exhaust shell 11 made of transparent material, and the exhaust shell 11 is arranged to facilitate the exhaust of the extracted carbon dioxide gas; the side surface of the bottom end of the support column 2 is fixedly connected with a fixing column 3, the tail end of the fixing column 3 is fixedly connected with a first air duct 26, and the first air duct 26 is conveniently and stably fixed by the arranged fixing column 3; the surface of the exhaust shell 11 is provided with scale marks 14;
the moving mechanism comprises an electro-hydraulic push rod 4, a connecting cylinder 5, a connecting rod 6, a supporting seat 7 and a rolling cylinder 8, the electro-hydraulic push rod 4 is fixedly connected to the middle of the inner wall of a placing groove formed in the bottom of the fixing seat 1, and the supporting seat 7 is convenient to push to move due to the arrangement of the electro-hydraulic push rod 4; the output end of the electro-hydraulic push rod 4 is fixedly connected with a supporting seat 7, and the top of the supporting seat 7 is fixedly connected with a connecting rod 6; the top end of the connecting rod 6 is in sliding connection with the inner cavity of the connecting cylinder 5 fixed on the inner placing wall; the bottom of the supporting seat 7 is connected with a rolling cylinder 8 in a rolling way, and the rolling cylinder 8 is arranged to facilitate the movement of the device;
the gas injection mechanism comprises a moving rod 10, an exhaust shell 11, an electric push rod 12, a gas outlet pipe 23, a first gas guide pipe 26 and a second gas guide pipe 27, and one end of the moving rod 10 is connected with the inner cavity of the fixed cylinder 9 in a sliding manner; an electric push rod 12 is fixedly connected to one side of the exhaust shell 11, the output end of the electric push rod 12 is fixedly connected with a piston 13 in the exhaust shell 11, and the arranged electric push rod 12 is convenient for pushing the piston 13 to move; the other side of the piston 13 is fixedly connected with one end of the movable rod 10; the top of the right side of the exhaust shell 11 is fixedly communicated with the tail end of the first air inlet pipe 15, and the top of the left side of the exhaust shell 11 corresponding to the exhaust shell is fixedly communicated with the tail end of the second air inlet pipe 17; a first check valve 16 is arranged in the first air inlet pipe 15, and the arranged first check valve 16 is convenient for the gas in the first air inlet pipe 15 to move in a one-way manner; a second one-way valve 18 is arranged in the second air inlet pipe 17, and the arranged second one-way valve 18 is convenient for the gas in the second air inlet pipe 17 to move in a one-way manner; the other ends of the first air inlet pipe 15 and the second air inlet pipe 17 are fixedly communicated with a main air inlet pipe 19, and the tail end of the main air inlet pipe 19 is connected with a flange 20; a carbon dioxide storage tank 22 is arranged on the left side of the exhaust shell 11, an exhaust pipe 21 is fixedly communicated with the top end of the carbon dioxide storage tank 22, and the exhaust pipe 21 is arranged to facilitate the exhaust of gas in the carbon dioxide storage tank 22; the top end of the exhaust pipe 21 is connected with a flange 20 of the main air inlet pipe 19; an air outlet pipe 23 is fixedly communicated with the bottom of the side surface of the exhaust shell 11, a third one-way valve 24 is arranged in the air outlet pipe 23, and the third one-way valve 24 is arranged to facilitate the exhaust of the air in the air outlet pipe 23; the tail end of the air outlet pipe 23 is fixedly communicated with the connecting air pipe 25, and the bottom end of the connecting air pipe 25 is fixedly communicated with the first air guide pipe 26; the inner wall of the bottom end of the first air duct 26 is connected with a second air duct 27 in a sliding way; the end of the second air duct 27 is fixedly communicated with a conical air pipe head 28.
The number of the connecting cylinders 5 is two, and the two connecting cylinders 5 are symmetrically distributed about the electro-hydraulic push rod 4, so that the connecting cylinders 25 are placed compactly, and the connecting rods 6 can slide conveniently; the plane of the bottom end of the rolling cylinder 8 is higher than the plane of the bottom of the fixed seat 1, so that the fixed seat 1 can be stably placed conveniently; the sum of the length of the connecting cylinder 5 and the length of the connecting rod 6 is greater than the depth of the placing groove, so that the rolling cylinder 8 can support the fixed seat 1 when in use, and the rolling cylinder 8 can roll conveniently; a placing groove is formed in the bottom surface of the fixing seat 1, and a supporting seat 7 is connected to the inner wall of the placing groove in a sliding mode, so that the supporting seat 7 can slide conveniently; the moving rod 10 is connected with the side surface of the exhaust shell 11 in a sliding manner, the length of the moving rod 10 is greater than that of the inner cavity of the exhaust shell 11, and the length of the moving rod 10 is smaller than that of the fixed cylinder 9, so that the moving rod 10 can conveniently slide in the fixed cylinder 9; the piston 13 is connected with the inner cavity of the exhaust shell 11 in a sliding manner, so that the piston 13 can move in the exhaust shell 11 conveniently; the number of the air outlet pipes 23 is two, and the two air outlet pipes 23 are respectively fixedly communicated with the inner cavities at two opposite sides of the exhaust shell 11, so that the air outlet pipes 23 are compactly placed and are convenient to exhaust; the length of the first air duct 26 is equal to that of the second air duct 27, so that the second air duct 27 can be contracted; one side that first intake pipe 15 was connected to exhaust shell 11 and one side of connecting second intake pipe 17 all are connected with outlet duct 23, and guarantee outlet duct 23 places compactly, convenient to use.
When the device is used, firstly, all electrical components in the device are externally connected with a control switch and a power supply, the support seat 7 is pushed to move downwards by starting the electro-hydraulic push rod 4, the support seat 7 pushes the rolling barrel 8 at the bottom to prop up the fixed seat 1, a worker moves under the rolling action of the rolling barrel 8 through the pushing device, so that the worker can conveniently adjust the device, meanwhile, the worker can conveniently insert the second air duct 27 into an oil-gas well according to the required length by adjusting the second air duct 27 to slide in the first air duct 26, meanwhile, when in gas injection, the electric push rod 12 is started to push the piston 13 to circularly and periodically slide in the exhaust casing 11, when the piston 13 moves leftwards, the piston 13 exhausts carbon dioxide gas in the left exhaust casing 11, and simultaneously, the exhausted carbon dioxide is exhausted into the first air duct 26 through the left air outlet pipe 23 of the exhaust casing 11, gas is discharged into the second gas guide pipe 27 through the first gas guide pipe 26 and finally discharged through the conical gas pipe head 28, when the piston 13 moves leftwards, the gas in the carbon dioxide storage tank 22 is pumped into the exhaust shell 11 through the first gas inlet pipe 15, when the piston 13 moves rightwards, the gas on the right side of the exhaust shell 11 is discharged from the gas outlet pipe 23 through the piston 13, the discharged gas is discharged into the first gas guide pipe 26, the gas is discharged into the second gas guide pipe 27 through the first gas guide pipe 26, and finally discharged through the conical gas pipe head 28, when the piston 13 moves rightwards, the gas in the carbon dioxide storage tank 22 is pumped into the exhaust shell 11 through the second gas inlet pipe 17, and therefore the gas injection process of the carbon dioxide is completed.
The electro-hydraulic push rod 4 is a 100 electro-hydraulic push rod sold by Mars electromechanical No. 3 shop, and a supporting circuit of the electro-hydraulic push rod can be provided by a merchant.
The electric push rod 12 is an XTL100 electric push rod sold in a dragon flying hardware flagship store, and a matching circuit of the electric push rod can be provided by a merchant.
It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A carbon dioxide injection device for carbon dioxide flooding is characterized in that: comprises a fixed seat (1), a supporting column (2), a fixed column (3), a moving mechanism and a gas injection mechanism;
a supporting column (2) is fixedly connected to the middle of the top side of the fixed seat (1), and a fixed cylinder (9) is fixedly connected to one side of the top end of the supporting column (2); the other end of the fixed cylinder (9) is fixedly connected with the side surface of an exhaust shell (11) made of transparent material; a fixed column (3) is fixedly connected to the side surface of the bottom end of the supporting column (2), and a first air duct (26) is fixedly connected to the tail end of the fixed column (3); the surface of the exhaust shell (11) is provided with scale marks (14);
the moving mechanism comprises an electro-hydraulic push rod (4), a connecting cylinder (5), a connecting rod (6), a supporting seat (7) and a rolling cylinder (8), and the electro-hydraulic push rod (4) is fixedly connected to the middle of the inner wall of a placing groove formed in the bottom of the fixing seat (1); the output end of the electro-hydraulic push rod (4) is fixedly connected with a supporting seat (7), and the top of the supporting seat (7) is fixedly connected with a connecting rod (6); the top end of the connecting rod (6) is in sliding connection with the inner cavity of the connecting cylinder (5) fixed on the inner wall of the placing groove; the bottom of the supporting seat (7) is connected with a rolling cylinder (8) in a rolling way;
the gas injection mechanism comprises a moving rod (10), an exhaust shell (11), an electric push rod (12), a gas outlet pipe (23), a first gas guide pipe (26) and a second gas guide pipe (27), and one end of the moving rod (10) is connected with the inner cavity of the fixed cylinder (9) in a sliding manner; one side of the exhaust shell (11) is fixedly connected with an electric push rod (12), and the output end of the electric push rod (12) is fixedly connected with a piston (13) in the exhaust shell (11); the other side of the piston (13) is fixedly connected with one end of the movable rod (10); the top of the right side of the exhaust shell (11) is fixedly communicated with the tail end of the first air inlet pipe (15), and the top of the left side of the exhaust shell (11) corresponding to the exhaust shell is fixedly communicated with the tail end of the second air inlet pipe (17); a first one-way valve (16) is arranged in the first air inlet pipe (15); a second one-way valve (18) is arranged in the second air inlet pipe (17); the other ends of the first air inlet pipe (15) and the second air inlet pipe (17) are fixedly communicated with a main air inlet pipe (19), and the tail end of the main air inlet pipe (19) is connected with a flange (20); a carbon dioxide storage tank (22) is arranged on the left side of the exhaust shell (11), and an exhaust pipe (21) is fixedly communicated with the top end of the carbon dioxide storage tank (22); the top end of the exhaust pipe (21) is connected with a flange (20) of the main air inlet pipe (19); an air outlet pipe (23) is fixedly communicated with the bottom of the side surface of the exhaust shell (11), and a third one-way valve (24) is arranged in the air outlet pipe (23); the tail end of the air outlet pipe (23) is fixedly communicated with the connecting air pipe (25), and the bottom end of the connecting air pipe (25) is fixedly communicated with the first air guide pipe (26); the inner wall of the bottom end of the first air duct (26) is connected with the second air duct (27) in a sliding way; the tail end of the second air duct (27) is fixedly communicated with a conical air duct head (28).
2. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the number of the connecting cylinders (5) is two, and the two connecting cylinders (5) are symmetrically distributed around the electro-hydraulic push rod (4).
3. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the plane of the bottom end of the rolling cylinder (8) is higher than the plane of the bottom of the fixed seat (1).
4. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the sum of the length of the connecting cylinder (5) and the length of the connecting rod (6) is larger than the depth of the placing groove.
5. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the bottom surface of the fixed seat (1) is provided with a placing groove, and the inner wall of the placing groove is connected with a supporting seat (7) in a sliding mode.
6. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the movable rod (10) is connected with the side surface of the exhaust shell (11) in a sliding mode, the length of the movable rod (10) is larger than that of the inner cavity of the exhaust shell (11), and the length of the movable rod (10) is smaller than that of the fixed cylinder (9).
7. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the piston (13) is connected with the inner cavity of the exhaust shell (11) in a sliding manner.
8. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the number of the air outlet pipes (23) is two, and the two air outlet pipes (23) are respectively fixedly communicated with the inner cavities at two opposite sides of the exhaust shell (11).
9. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: the length of the first air duct (26) is equal to the length of the second air duct (27).
10. The carbon dioxide injection device for carbon dioxide flooding according to claim 1, characterized in that: one side that first intake pipe (15) are connected in shell of exhausting (11) and one side of connecting second intake pipe (17) all are connected with outlet duct (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267136.3A CN109469464B (en) | 2018-10-29 | 2018-10-29 | Carbon dioxide injection device for carbon dioxide flooding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267136.3A CN109469464B (en) | 2018-10-29 | 2018-10-29 | Carbon dioxide injection device for carbon dioxide flooding |
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| CN109469464A CN109469464A (en) | 2019-03-15 |
| CN109469464B true CN109469464B (en) | 2020-11-06 |
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| CN201811267136.3A Expired - Fee Related CN109469464B (en) | 2018-10-29 | 2018-10-29 | Carbon dioxide injection device for carbon dioxide flooding |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112814651B (en) * | 2021-01-05 | 2024-03-01 | 中国石油天然气股份有限公司 | Oil reservoir gas injection huff and puff experimental device |
| CN113374453A (en) * | 2021-07-13 | 2021-09-10 | 秦昊良 | Carbon dioxide gas injection device for carbon dioxide flooding |
| CN113483254A (en) * | 2021-07-13 | 2021-10-08 | 杨健宇 | Gas supply equipment for carbon dioxide flooding |
| CN113586938A (en) * | 2021-07-20 | 2021-11-02 | 柏宗宪 | Gas supercharging device for carbon dioxide oil displacement |
| CN113982545B (en) * | 2021-09-28 | 2023-07-28 | 普斐特油气工程(江苏)股份有限公司 | Safety lifting Wen Zhuqi valve for oil well |
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