CN117627597A - Dry ice heating sublimation device for carbon dioxide flooding and use method - Google Patents
Dry ice heating sublimation device for carbon dioxide flooding and use method Download PDFInfo
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- CN117627597A CN117627597A CN202210952454.3A CN202210952454A CN117627597A CN 117627597 A CN117627597 A CN 117627597A CN 202210952454 A CN202210952454 A CN 202210952454A CN 117627597 A CN117627597 A CN 117627597A
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- round
- dry ice
- carbon dioxide
- cylinder
- heating
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 235000011089 carbon dioxide Nutrition 0.000 title claims abstract description 57
- 238000010438 heat treatment Methods 0.000 title claims abstract description 55
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 37
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 37
- 238000000859 sublimation Methods 0.000 title claims abstract description 32
- 230000008022 sublimation Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 241001233242 Lontra Species 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention belongs to the technical field of petroleum exploitation, and particularly relates to a dry ice heating sublimation device for carbon dioxide flooding and a use method thereof. The device includes drum, closure assembly, stacks subassembly and heating element, closure assembly includes circle chock, lower otic placode, round bar and motor, the lower part terminal surface sealing connection of circle chock and drum, the output drive round bar of motor drives circle chock up-and-down motion, stacks the subassembly and is located inside the drum, including support frame and a plurality of round otter board, heating element includes peristaltic pump, electromagnetic heating board, external steel pipe that connects gradually with the peristaltic pump, built-in steel pipe is the heliciform, be located between the outside of drum inner wall, support frame, the external steel pipe outside is equipped with electromagnetic heating board. The invention can intensively contain dry ice, is provided with the circulating flow heating component, is convenient for realizing the concentrated uniform heating of the dry ice, sublimates rapidly, has high water flow speed, and can avoid the situation that the pipe body is blocked due to the low water flow speed.
Description
Technical Field
The invention belongs to the technical field of petroleum exploitation, and particularly relates to a dry ice heating sublimation device for carbon dioxide flooding and a use method thereof.
Background
Carbon dioxide displacement is a technique of injecting carbon dioxide into an oil reservoir to increase oil recovery in an oil field, wherein a miscible phase is not formed when carbon dioxide is first contacted with crude oil in a stratum, but under the conditions of proper pressure, temperature and crude oil components, the carbon dioxide can form a miscible phase front, a supercritical fluid extracts heavier hydrocarbons from the crude oil, and gas at a displacement front is continuously concentrated, so that the carbon dioxide and the crude oil become a miscible phase liquid, and a single liquid phase is formed, thereby effectively displacing the crude oil in the stratum to a production well.
Among the existing carbon dioxide flooding technologies in oil fields, the liquid-phase carbon dioxide injection technology is most widely applied. In the prior art, carbon dioxide is compressed and stored in a tank body, the carbon dioxide storage mode is small in storage quantity and occupies space relative to dry ice, the storage quantity of the dry ice is large, the dry ice is easy to transport, but the time spent for heat absorption and sublimation at normal temperature is long when the dry ice storage tank is used, the existing storage tank is lack of a space structure capable of containing heated dry ice, and meanwhile, slow flowing liquid in a pipeline is frozen due to heat absorption and sublimation of the dry ice.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the dry ice heating sublimation device for carbon dioxide flooding and the use method, the device can intensively contain dry ice and is provided with the circulating flow heating assembly, so that the dry ice can be intensively and uniformly heated, the sublimation is fast, the water body flow speed is fast, and the situation that the pipe body is blocked due to icing caused by slow water flow rate can be avoided.
The technical scheme of the invention is as follows: the utility model provides a carbon dioxide is dry ice heating sublimating device for displacement of reservoir oil, includes drum, closure assembly, stacks subassembly and heating element, the top of drum is the closure terminal surface, closure terminal surface center is connected with the return bend, closure assembly includes circle chock, two lower otic placodes, two round bars and two motors, circle chock with the lower terminal surface sealing connection of drum, circle chock annular side symmetry installs two lower otic placode, two lower otic placode up end respectively fixedly connected with round bar, two screw has been seted up respectively to round bar top terminal surface, be equipped with thin screw rod in the screw, thin screw rod top with the output of motor is connected, stack the subassembly and be located inside the drum, including support frame and a plurality of round otter board, the support frame is the U type, the U type open end with circle chock up end fixed connection, the round otter board is circular, and the circular surface is equipped with a plurality of mesh equidistance is installed between the support frame inner side wall, two heating element includes peristaltic pump, external steel pipe and spiral pump are located in proper order, the external steel pipe is equipped with the electromagnetic heating plate is in the outside between the drum, the outside is equipped with the electromagnetic heating plate is located in the outside.
An electric regulating valve is arranged on the bent pipe.
An upper lug plate is arranged right above the two lower lug plates and on the annular side face of the round plug block, and the motors are respectively and fixedly arranged on the two upper lug plates.
The inside concave surface ring that is equipped with of drum lower part nozzle, the circle chock top be equipped with concave surface ring shape assorted circular arch.
The outer side of the upper part of the cylinder is correspondingly provided with a left round flat box and a right round flat box, the bottoms of the left round flat box and the right round flat box are respectively provided with an electromagnetic heating plate, and the external steel pipe is positioned inside the left round flat box and the right round flat box and above the electromagnetic heating plates.
The number of the round screen plates is 5, and the height of the cylinder is larger than the length of the supporting frame.
The application method of the dry ice heating sublimation device for carbon dioxide flooding uses any one of the dry ice heating sublimation devices for carbon dioxide flooding, and comprises the following steps:
s1: the motor is operated to drive the connected thin screw rod to rotate, the round rod which is in threaded connection with the screw hole is moved downwards, the round rod drives the round plug block to separate from the cylinder opening of the cylinder, the round screen plate is moved out of the cylinder, dry ice is filled on the round screen plate, then the motor is reversed, and the round plug block and the cylinder opening of the cylinder are closed and sealed;
s2: the inner annular wall of the cylinder is provided with the built-in steel pipes which are spirally distributed, dry ice on the circular screen plate can be surrounded, a circulating pipe body is formed by the built-in steel pipes and the external steel pipes on two sides, water in the external steel pipes is electrified and heated through the electromagnetic heating plate, water body circulation flow is realized by running the peristaltic pump, and dry ice sublimation is accelerated;
s3: and after the dry ice sublimates, the bent pipe is regulated to be discharged outwards through the electric regulating valve, and carbon dioxide flooding is carried out.
The invention has the technical effects that: 1. according to the invention, the motor is operated to drive the connected thin screw rod to rotate, so that the round rod is driven to move downwards or upwards, the effect of separating the round plug block from the cylinder opening and closing the round plug block with the cylinder opening is achieved, the round screen plate is facilitated to be moved out of the cylinder, dry ice is conveniently contained, and the dry ice is intensively heated and sublimated uniformly; 2. according to the invention, the spiral distributed built-in steel pipes are arranged on the inner annular wall of the cylinder, so that dry ice on the circular screen plate can be surrounded, a circulating pipe body is formed by the built-in steel pipes and the external steel pipes on two sides, and water in the external steel pipes is electrified and heated through the electromagnetic heating plate, thereby being beneficial to heating circulating water, realizing the function of accelerating sublimation of dry ice and improving treatment efficiency; 3. by operating the peristaltic pump, the peristaltic pump has high operating speed, realizes the water body circulation flow function, has high water body flow speed, and can avoid the situation that the pipe body is blocked due to icing caused by low water body flow speed.
Further description will be made below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of a dry ice heating sublimation device for carbon dioxide flooding in an embodiment of the invention.
Fig. 2 is a schematic diagram of the internal structure of a cylinder of a dry ice heating sublimation device for carbon dioxide flooding in an embodiment of the invention.
Fig. 3 is a schematic diagram of the internal structure of a right round flat box of a dry ice heating sublimation device for carbon dioxide displacement in an embodiment of the invention.
Fig. 4 is a front view of a stacked assembly structure of a dry ice heating sublimation device for carbon dioxide flooding in an embodiment of the invention.
Fig. 5 is a top view of a stacked assembly structure of a dry ice heating sublimation device for carbon dioxide flooding in an embodiment of the invention.
Fig. 6 is a schematic diagram showing connection between a round rod and a thin screw of a dry ice heating sublimation device for carbon dioxide flooding in an embodiment of the invention.
Reference numerals: 1. the device comprises a cylinder, 2, a round plug block, 3, a lower lug plate, 4, a round rod, 5, a right round flat box, 6, an upper lug plate, 7, an elbow pipe, 8, an electric control valve, 9, a motor, 10, a left round flat box, 11, a peristaltic pump, 12, an internal steel pipe, 13, a concave ring, 14, an external steel pipe, 15, an electromagnetic heating plate, 16, a supporting frame, 17, a round screen plate, 18, a thin screw rod, 19 and a screw hole.
Detailed Description
Example 1
As shown in fig. 1-6, a dry ice heating sublimation device for carbon dioxide displacement of reservoir oil comprises a cylinder 1, a sealing component, stacking components and a heating component, wherein the top of the cylinder 1 is a sealing end face, the center of the sealing end face is connected with a bent pipe 7, the sealing component comprises a round plug block 2, two lower ear plates 3, two round rods 4 and two motors 9, the round plug block 2 is in sealing connection with the lower end face of the cylinder 1, two lower ear plates 3 are symmetrically arranged on the annular side face of the round plug block 2, two lower ear plates 3 are fixedly connected with the round rods 4 respectively, screw holes 19 are respectively formed in the top end faces of the round rods 4, thin screws 18 are arranged in the screw holes 19, the top of the thin screws 18 are connected with the output ends of the motors 9, the stacking components are located inside the cylinder 1 and comprise a support frame 16 and a plurality of round mesh plates 17, the U-shaped opening ends are fixedly connected with the upper end face of the round plug block 2, the two outer mesh plates 17 are fixedly connected with the inner side faces of the cylinder 1, the outer mesh plates are respectively fixedly connected with the inner side faces of the cylinder 14 and the outer side faces of the cylinder 1, the outer side faces of the cylinder 14 are respectively, the outer mesh plates are respectively provided with the inner side faces of the cylinder 14, the inner side faces of the cylinder 14 are respectively, and the outer side faces of the cylinder are respectively, and the inner side faces of the cylinder are respectively provided with the inner side faces of the cylinder 14 and the outer side faces of the cylinder are respectively, and are respectively.
In the actual use process, the end face of the top end of the round rod 4 is provided with the screw hole 19, the screw hole 19 is internally provided with the thin screw rod 18, the top of the thin screw rod 18 is connected with the output end of the motor 9, the connected thin screw rod 18 is driven to rotate by operating the motor 9, the round rod 4 connected through the screw hole 19 in a threaded manner can be moved downwards or upwards, the effect that the round plug block 2 connected through the lower lug plate 3 is separated from the barrel opening of the barrel 1 and is closed together with the barrel opening of the barrel 1 is achieved, the round screen plate 17 is conveniently moved out of the barrel, dry ice is conveniently contained, and the dry ice is intensively heated and sublimated uniformly is realized; meanwhile, the inner steel pipes 12 which are spirally distributed are arranged on the inner annular wall of the cylinder 1, so that dry ice on the circular screen plate 17 can be surrounded, a circulating pipe body is formed by the inner steel pipes 12 and the outer steel pipes 14 on two sides, and water in the outer steel pipes 14 is electrified and heated through the electromagnetic heating plates 15, thereby being beneficial to heating circulating water, realizing the function of accelerating dry ice sublimation and improving the treatment efficiency; by operating the peristaltic pump 11, the operation speed is high, the water body circulation flow function is realized, the water body flow speed is high, and the situation that the pipe body is blocked due to icing caused by low water body flow speed can be avoided.
Example 2
Preferably, in this embodiment, on the basis of embodiment 1, an electric control valve 8 is provided on the elbow 7.
In the actual use process, the electric regulating valve is arranged on the bent pipe 7, so that the sublimated dry ice can be conveniently regulated and quickly output.
Example 3
Preferably, in this embodiment, on the basis of embodiment 1 or embodiment 2, an upper ear plate 6 is disposed directly above the two lower ear plates 3 and on the annular side surface of the round plug 2, and the motors 9 are fixedly mounted on the upper parts of the two upper ear plates 6, respectively.
In the actual use process, the upper lug plates 6 are arranged right above the two lower lug plates 3 and on the annular side surfaces of the round plug blocks 2, and the motor 9 is fixedly arranged on the upper part of the upper lug plates 6, so that the concentric arrangement of the round rods 4 driven by the output ends of the motor 9 is ensured.
Example 4
Preferably, in this embodiment, on the basis of embodiment 1 or embodiment 4, a concave ring 13 is disposed inside the lower nozzle of the cylinder 1, and a circular protrusion matching the shape of the concave ring 13 is disposed on the top of the circular plug 2.
In the actual use process, the concave ring 13 is arranged in the lower cylinder opening of the cylinder 1, the circular bulge matched with the concave ring 13 in shape is arranged at the top of the circular plug block 2, and the circular plug block 2 is in sealing connection with the lower cylinder opening of the cylinder 1.
Example 5
Preferably, in this embodiment, on the basis of embodiment 1 or embodiment 5, the outer side of the upper portion of the cylinder 1 is correspondingly provided with a left flat round box 10 and a right flat round box 5, bottoms of the left flat round box 10 and the right flat round box 5 are respectively provided with the electromagnetic heating plate 15, and the external steel pipe 14 is located inside the left flat round box 10 and the right flat round box 5 and above the electromagnetic heating plate 15.
In the actual use process, the bottoms of the left round flat box 10 and the right round flat box 5 are respectively provided with the electromagnetic heating plates 15, and the electromagnetic heating plates 15 are used for heating water in the external steel pipes 14.
Example 6
Preferably, in this embodiment, the number of the circular screen plates 17 is 5, and the height of the cylinder 1 is greater than the length of the supporting frame 6.
In the actual use process, the height of the cylinder 1 is larger than the length of the supporting frame 6, so that groups can be formed with other cylinders 1, and the dry ice treatment amount is improved.
Example 7
The application method of the dry ice heating sublimation device for carbon dioxide flooding uses any one of the dry ice heating sublimation devices for carbon dioxide flooding, and comprises the following steps:
s1: the motor 9 is operated to drive the connected thin screw rod 18 to rotate, the round rod 4 which is in threaded connection with the screw hole 19 is moved downwards, the round rod 4 drives the round plug block 2 to separate from the cylinder opening of the cylinder 1, the round screen 17 is moved out of the cylinder 1, dry ice is placed on the round screen 17, then the motor 9 is reversed, and the round plug block 2 and the cylinder opening of the cylinder 1 are closed and sealed;
s2: the inner steel pipes 12 which are spirally distributed are arranged on the inner annular wall of the cylinder 1, so that dry ice on the circular screen plate 17 can be surrounded, a circulating pipe body is formed by the inner steel pipes 12 and the outer steel pipes 14 on two sides, water in the outer steel pipes 14 is electrified and heated through the electromagnetic heating plates 15, the peristaltic pump 11 is operated to realize water body circulation flow, and dry ice sublimation is accelerated;
s2: and after the dry ice sublimates, the bent pipe 7 is regulated to be discharged outwards through the electric regulating valve 8, so that carbon dioxide flooding is carried out.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a carbon dioxide is dry ice heating sublimation device for displacement of reservoir oil which characterized in that: including drum (1), closure assembly, stack subassembly and heating element, the top of drum (1) is the closure terminal surface, closure terminal surface center is connected with return bend (7), closure assembly includes circle chock (2), two lower otic placode (3), two round bars (4) and two motors (9), circle chock (2) with the lower terminal surface sealing connection of drum (1), circle chock (2) annular side symmetry installs two lower otic placode (3), two lower otic placode (3) up end fixedly connected with respectively round bar (4), two screw (19) have been seted up respectively to round bar (4) top terminal surface, be equipped with thin screw (18) in screw (19), thin screw (18) top with the output of motor (9) is connected, stack the subassembly and be located inside drum (1), including support frame (16) and a plurality of round screen (17), support frame (16) are U type, U type chock (2) up end fixedly connected with round bar (4), two round bars (17), round screen (17) are installed to be the hot plate, round pump (17) are installed to the round, the round pump (17) are equidistant between the round side wall (17), the round pump (17) is installed to round end face, the round pump is equipped with round, the round pump (17 is equipped with the round electric motor (17) is equipped with the round electric motor The peristaltic pump is characterized in that the peristaltic pump is sequentially connected with an external steel pipe (14) and an internal steel pipe (12), the internal steel pipe (12) is in a spiral shape and is positioned between the inner wall of the cylinder (1) and the outer side of the supporting frame (16), the external steel pipe (14) is positioned on two sides of the annular side face of the cylinder (1), and an electromagnetic heating plate (15) is arranged on the outer side of the external steel pipe (14).
2. The dry ice heating sublimation device for carbon dioxide flooding of claim 1, wherein: an electric regulating valve (8) is arranged on the bent pipe (7).
3. The dry ice heating sublimation device for carbon dioxide flooding of claim 1, wherein: an upper lug plate (6) is arranged right above the two lower lug plates (3) and on the annular side face of the round plug block (2), and the motors (9) are respectively and fixedly arranged on the two upper lug plates (6).
4. The dry ice heating sublimation device for carbon dioxide flooding of claim 1, wherein: the cylinder is characterized in that a concave ring (13) is arranged in the lower cylinder opening of the cylinder (1), and a circular bulge matched with the concave ring (13) in shape is arranged at the top of the circular plug block (2).
5. The dry ice heating sublimation device for carbon dioxide flooding of claim 1, wherein: the outer side of the upper portion of the cylinder (1) is correspondingly provided with a left round flat box (10) and a right round flat box (5), the bottoms of the left round flat box (10) and the right round flat box (5) are respectively provided with an electromagnetic heating plate (15), and an external steel pipe (14) is positioned inside the left round flat box (10) and the right round flat box (5) and above the electromagnetic heating plates (15).
6. The dry ice heating sublimation device for carbon dioxide flooding of claim 1, wherein: the number of the round screen plates (17) is 5, and the height of the cylinder (1) is larger than the length of the supporting frame (6).
7. The application method of the dry ice heating sublimation device for carbon dioxide flooding uses any one of the dry ice heating sublimation devices for carbon dioxide flooding, and is characterized in that: the method comprises the following steps:
s1: the motor (9) is operated to drive the connected thin screw rod (18) to rotate, the round rod (4) connected through the screw hole (19) in a threaded mode moves downwards, the round rod (4) drives the round plug block (2) to separate from the barrel opening of the barrel (1), the round screen plate (17) is moved out of the barrel (1), dry ice is placed on the round screen plate (17), then the motor (9) is reversed, and the round plug block (2) and the barrel opening of the barrel (1) are sealed in a closed mode;
s2: the inner annular wall of the cylinder (1) is provided with the built-in steel pipes (12) which are spirally distributed, dry ice positioned on the circular screen plate (17) can be surrounded, a circulating pipe body is formed by the built-in steel pipes (12) and the external steel pipes (14) positioned on two sides, water in the external steel pipes (14) is electrified and heated through the electromagnetic heating plate (15), and circulating flow of water is realized by running the peristaltic pump (11), so that sublimation of the dry ice is accelerated;
s2: and after the dry ice sublimates, the bent pipe (7) is regulated by the electric regulating valve (8) to be discharged outwards, so that carbon dioxide displacement is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210952454.3A CN117627597A (en) | 2022-08-09 | 2022-08-09 | Dry ice heating sublimation device for carbon dioxide flooding and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210952454.3A CN117627597A (en) | 2022-08-09 | 2022-08-09 | Dry ice heating sublimation device for carbon dioxide flooding and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117627597A true CN117627597A (en) | 2024-03-01 |
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ID=90020340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210952454.3A Pending CN117627597A (en) | 2022-08-09 | 2022-08-09 | Dry ice heating sublimation device for carbon dioxide flooding and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117627597A (en) |
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2022
- 2022-08-09 CN CN202210952454.3A patent/CN117627597A/en active Pending
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