Carbon dioxide supercharging device with heating function

Abstract

The utility model discloses a carbon dioxide supercharging device with a heating function, which comprises a soil layer, a working surface is arranged on the soil layer, a closed box body is arranged on the working surface, a multi-stage electric telescopic cylinder is arranged in the closed box body, a piston is arranged at the telescopic end of the multi-stage electric telescopic cylinder, and a heating device is arranged on the piston. A liquid inlet pipe is arranged on the closed box body, a first electromagnetic valve is arranged on the liquid inlet pipe, a first check valve is arranged on the liquid inlet pipe and located on one side of the first electromagnetic valve, a first pressure gauge is arranged on the liquid inlet pipe and located on the other side of the first electromagnetic valve, and a first heat tracing band is arranged on the liquid inlet pipe. The utility model relates to the technical field of oil well drilling, which can heat the closed box body and the conveying pipeline for storing carbon dioxide, prevent the closed box body and the conveying pipeline from being frozen and frosted due to vaporization of the carbon dioxide, prevent the closed box body and the conveying pipeline from being damaged, and further prolong the service life of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of oil well drilling, in particular to a carbon dioxide pressurizing device with heating. Background Art

[0002] As emission requirements become increasingly stringent, carbon dioxide, as the main greenhouse gas, is subject to strict restrictions on its emissions. In the past, part of the carbon dioxide was injected into oil wells in the later stages of exploitation, and the pressure of the carbon dioxide was used to drive the carbon dioxide in the oil wells to move toward the wellhead, namely, carbon dioxide flooding. However, in the past, the carbon dioxide produced in the production process of chemical companies was first pressurized to a liquid state, and then the liquid carbon dioxide was transported to the oil field by a tank truck, and then the carbon dioxide was sent into the oil well by a pumping device. At present, when the existing carbon dioxide booster is used, the pipe connecting the tank truck and the closed box is exposed to the outside, and the pipe temperature is relatively high. Affected by the characteristics of carbon dioxide, liquid carbon dioxide will vaporize and absorb heat when the temperature is higher than 31°C. When it vaporizes, the temperature drops sharply and freezes and frosts at the connection, causing irreversible damage to valves and other equipment. At the same time, the temperature underground is relatively high. When liquid carbon dioxide is input into the underground oil field, part of the liquid carbon dioxide will vaporize, causing the transmission pipeline to have an empty pipe effect, causing damage to the carbon dioxide booster pump, thereby affecting the transmission efficiency of carbon dioxide.

[0003] For example, the utility model patent with the publication number CN220506105U discloses a carbon dioxide booster device for oilfield fracturing, including a booster box and a liquid storage tank, the output end of the booster box is provided with a connecting pipe, the liquid storage tank is connected to the booster box through the connecting pipe, and a feed pipe is provided on the top of the booster box, and a one-way valve is provided on the feed pipe, a control panel for controlling the liquid storage tank is provided at one end of the liquid storage tank, and a connecting seat for connecting the pipeline is provided at one end of the liquid storage tank, a through hole is provided on the connecting seat, and a useful As for the connection mechanism for fixing the pipeline, when the device is in use, the pipeline connecting the tank truck and the closed box is exposed, and the pipeline temperature is relatively high. Affected by the characteristics of carbon dioxide, liquid carbon dioxide will vaporize and absorb heat when the temperature is higher than 31°C. When it vaporizes, the temperature drops sharply and freezes and frosts at the connection, causing irreversible damage to valves and other equipment. At the same time, the temperature underground is relatively high. When liquid carbon dioxide is input into the underground oil field, part of the liquid carbon dioxide will vaporize, causing the transmission pipeline to have an empty pipe effect, causing damage to the carbon dioxide booster pump, and thus affecting the carbon dioxide transmission efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a carbon dioxide boosting device with heating, which solves the problem that when the existing carbon dioxide boosting device is used, the pipeline connecting the tank truck and the closed box is exposed, the pipeline temperature is relatively high, and affected by the characteristics of carbon dioxide, the liquid carbon dioxide will vaporize and absorb heat when the temperature is higher than 31°C. When vaporizing, the temperature drops sharply and freezes and frosts at the connection, causing irreversible damage to valves and other equipment. At the same time, the temperature underground is relatively high. When liquid carbon dioxide is input into the underground oil field, part of the liquid carbon dioxide will vaporize, causing the transmission pipeline to have an empty pipe effect, causing damage to the carbon dioxide boosting pump, thereby affecting the transmission efficiency of carbon dioxide.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a heated carbon dioxide booster device, comprising a soil layer, a working surface is arranged on the soil layer, a closed box is arranged on the working surface, a multi-stage electric telescopic cylinder is arranged in the closed box, a piston is arranged on the telescopic end of the multi-stage electric telescopic cylinder, a liquid inlet pipe is arranged on the closed box, a first solenoid valve is arranged on the liquid inlet pipe, a first check valve is arranged on the liquid inlet pipe and located on one side of the first solenoid valve, a first pressure gauge is arranged on the liquid inlet pipe and located on the other side of the first solenoid valve, and a first heating belt is arranged on the liquid inlet pipe.

[0006] Preferably, a liquid outlet pipe is provided on the closed box body, a second solenoid valve is provided on the liquid outlet pipe, a second check valve is provided on the liquid outlet pipe and located on one side of the second solenoid valve, a second pressure gauge is provided on the liquid outlet pipe and located on the other side of the second solenoid valve, and a second heating belt is provided on the liquid outlet pipe.

[0007] Preferably, a carbon dioxide booster pump is provided on the working surface, and the liquid outlet pipe is provided on the liquid inlet of the carbon dioxide booster pump.

[0008] Preferably, a cooling pipe is provided on the liquid outlet of the carbon dioxide booster pump, an inner pipe is provided inside the cooling pipe, and a first refrigeration pipe is spirally provided between the cooling pipe and the inner pipe.

[0009] Preferably, a refrigerator is provided on the working surface, a second refrigeration pipe is provided on the refrigerator, and the second refrigeration pipe is connected to the first refrigeration pipe.

[0010] Preferably, a heat preservation board is provided on the closed box, a heat insulation layer is provided on the heat preservation board, and a temperature control panel is provided on the closed box.

[0011] Beneficial Effects

[0012] The utility model provides a carbon dioxide booster device with heating, which has the following beneficial effects:

[0013] The closed box of the present design is provided with a liquid inlet pipe, a first solenoid valve, a first check valve, a first pressure gauge, a first heating tape, a liquid outlet pipe, a second solenoid valve, a second check valve, a second pressure gauge, a second heating tape, a heat preservation board, a heat preservation layer, and a temperature control panel. The device can heat the closed box and the delivery pipeline for storing carbon dioxide to prevent the closed box and the delivery pipeline from freezing and frosting due to the vaporization of carbon dioxide, and avoid the closed box and the delivery pipeline from being damaged, thereby improving the service life of the equipment.

[0014] The carbon dioxide booster pump of the present invention is provided with a cooling pipe on the liquid outlet, an inner pipe is provided inside the cooling pipe, a first refrigeration pipe is spirally provided between the cooling pipe and the inner pipe, a refrigerator is provided on the working surface, a second refrigeration pipe is provided on the refrigerator, and the second refrigeration pipe is connected to the first refrigeration pipe. The device can cool the carbon dioxide transmission pipeline connected to the oil well, and when liquid carbon dioxide is input into the underground oil field, it can prevent part of the liquid carbon dioxide from vaporizing, and avoid the empty pipe effect in the transmission pipeline to damage the carbon dioxide booster pump, thereby improving the transmission efficiency of carbon dioxide.

[0015] A working surface is arranged on the soil layer of the present design, a closed box is arranged on the working surface, a multi-stage electric telescopic cylinder is arranged in the closed box, a piston is arranged on the telescopic end of the multi-stage electric telescopic cylinder, and the device can maintain the pressure in the closed box when transporting carbon dioxide to the oil well, preventing the carbon dioxide from vaporizing due to insufficient pressure, thereby improving the transportation efficiency of liquid carbon dioxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the whole of the utility model.

[0017] Figure 2 It is a schematic diagram of the cooling pipe of the utility model.

[0018] In the figure: 1. insulation board; 2. closed box; 3. first pressure gauge; 4. first check valve; 5. liquid inlet pipe; 6. first solenoid valve; 7. first heating belt; 8. soil layer; 9. insulation layer; 10. multi-stage electric telescopic cylinder; 11. piston; 12. temperature control panel; 13. second check valve; 14. second solenoid valve; 15. second heating belt; 16. liquid outlet pipe; 17. carbon dioxide booster pump; 18. refrigerator; 19. working surface; 20. second refrigeration pipe; 21. inner pipe; 22. first refrigeration pipe; 23. cooling pipe; 24. second pressure gauge. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 The utility model provides a technical solution: a carbon dioxide booster device with heating, comprising a soil layer 8, a working surface 19 is arranged on the soil layer 8, a closed box 2 is arranged on the working surface 19, a multi-stage electric telescopic cylinder 10 is arranged in the closed box 2, a piston 11 is arranged on the telescopic end of the multi-stage electric telescopic cylinder 10, a liquid inlet pipe 5 is arranged on the closed box 2, a first solenoid valve 6 is arranged on the liquid inlet pipe 5, a first check valve 4 is arranged on the liquid inlet pipe 5 and located on one side of the first solenoid valve 6, a first pressure gauge 3 is arranged on the liquid inlet pipe 5 and located on the other side of the first solenoid valve 6, and a first heating belt 7 is arranged on the liquid inlet pipe 5;

[0021] Driving the multi-stage electric telescopic cylinder 10 to extend and retract drives the piston 11 to increase the pressure in the closed box 2, preventing the carbon dioxide from vaporizing due to insufficient pressure, thereby improving the transportation efficiency of liquid carbon dioxide;

[0022] The first check valve 4 prevents the carbon dioxide liquid in the closed box 2 from flowing back into the tanker from the liquid inlet pipe 5, which belongs to the existing mature technology, and its check method belongs to the common technical knowledge, so its structure is not described in detail;

[0023] The first heating belt 7 can heat the liquid inlet pipe 5, and the heating temperature is lower than 31°C, to prevent the liquid carbon dioxide from vaporizing and causing the liquid inlet pipe 5 and the equipment on the liquid inlet pipe 5 to freeze and frost, thereby avoiding damage to the liquid inlet pipe 5 and the equipment on the liquid inlet pipe 5, thereby increasing the service life of the equipment.

[0024] This embodiment is further configured such that a liquid outlet pipe 16 is provided on the closed box body 2, a second solenoid valve 14 is provided on the liquid outlet pipe 16, a second check valve 13 is provided on the liquid outlet pipe 16 and located on one side of the second solenoid valve 14, a second pressure gauge 24 is provided on the liquid outlet pipe 16 and located on the other side of the second solenoid valve 14, and a second heating belt 15 is provided on the liquid outlet pipe 16;

[0025] The second heating belt 15 can heat the liquid outlet pipe 16, and the heating temperature is lower than 31°C to prevent the liquid carbon dioxide from vaporizing and causing the liquid outlet pipe 16 and the equipment on the liquid outlet pipe 16 to freeze and frost, thereby avoiding damage to the liquid outlet pipe 16 and the equipment on the liquid outlet pipe 16, thereby increasing the service life of the equipment.

[0026] This embodiment is further configured such that a carbon dioxide booster pump 17 is provided on the working surface 19, and the liquid outlet pipe 16 is provided on the liquid inlet of the carbon dioxide booster pump 17;

[0027] The carbon dioxide booster pump 17 is used to boost the pressure of liquid carbon dioxide, which is an existing mature technology. Its boosting method is common technical knowledge, so its structure is not described in detail.

[0028] This embodiment is further configured such that a cooling pipe 23 is provided on the liquid outlet of the carbon dioxide booster pump 17, an inner pipe 21 is provided inside the cooling pipe 23, and a first refrigeration pipe 22 is spirally provided between the cooling pipe 23 and the inner pipe 21;

[0029] The first refrigeration pipe 22 is spirally arranged between the cooling pipe 23 and the inner pipe 21, which can increase the contact area between the first refrigeration pipe 22 and the inner pipe 21, improve the refrigeration effect, and cool the carbon dioxide transmission pipeline connected to the oil well. When liquid carbon dioxide is input into the underground oil field, it prevents part of the liquid carbon dioxide from vaporizing, avoids the empty pipe effect of the transmission pipeline, and damages the carbon dioxide booster pump 17, thereby improving the transmission efficiency of carbon dioxide.

[0030] This embodiment is further configured such that a refrigerator 18 is provided on the working surface 19, a second refrigeration pipe 20 is provided on the refrigerator 18, and the second refrigeration pipe 20 is connected to the first refrigeration pipe 22;

[0031] The refrigerator 18 is only used for refrigeration, which belongs to the existing mature technology. Its refrigeration is common knowledge, so its structure is not described in detail.

[0032] This embodiment is further configured such that a heat preservation board 1 is provided on the closed box 2, a heat insulation layer 9 is provided on the heat preservation board 1, and a temperature control panel 12 is provided on the closed box 2;

[0033] The heat preservation board 1 is a heating board, which can heat the closed box 2, and the heating temperature is lower than 31°C, so as to prevent the liquid carbon dioxide from vaporizing and causing the closed box 2 to freeze and frost, thereby avoiding damage to the closed box 2, and thus prolonging the service life of the closed box 2;

[0034] The temperature control panel 12 is only used to control the heating temperature of the heating belt and the cooling temperature of the refrigerator 18. It is not within the protection scope of this design and belongs to the existing mature technology. Its control method belongs to the common technical knowledge, so its structure is not described in detail.

[0035] Embodiment: When the tank truck delivers liquid carbon dioxide to the closed box 2, the liquid outlet pipe of the tank truck is connected to the liquid inlet pipe 5, and the temperature of the first heating belt 7 is controlled by the temperature control panel 12 to heat the liquid inlet pipe 5, and the heating is lower than 31°C to prevent the liquid carbon dioxide from vaporizing and causing the liquid inlet pipe 5 and the equipment on the liquid inlet pipe 5 to freeze and frost, thereby avoiding damage to the liquid inlet pipe 5 and the equipment on the liquid inlet pipe 5, thereby increasing the service life of the equipment, opening the first solenoid valve 6 and the control valve on the tank truck, and starting the delivery pump on the tank truck to deliver the liquid carbon dioxide to the closed box 2 The first check valve 4 prevents the carbon dioxide liquid in the closed box 2 from flowing back into the tanker from the liquid inlet pipe 5. After the delivery is completed, the first solenoid valve 6 is closed. When the closed box 2 inputs liquid carbon dioxide into the underground oil well, the temperature of the second heating belt 15 is controlled by the temperature control panel 12 to heat the liquid outlet pipe 16, and the heating is lower than 31°C to prevent the liquid carbon dioxide from evaporating and causing the liquid outlet pipe 16 and the equipment on the liquid outlet pipe 16 to freeze and frost, thereby avoiding damage to the liquid outlet pipe 16 and the equipment on the liquid outlet pipe 16, thereby increasing the service life of the equipment. The cooling liquid generated by 18 passes through the second refrigeration pipe 20 and then to the first refrigeration pipe 22. The first refrigeration pipe 22 is spirally arranged between the cooling pipe 23 and the inner pipe 21, which can increase the contact area between the first refrigeration pipe 22 and the inner pipe 21, improve the refrigeration effect, and cool the carbon dioxide transmission pipeline connected to the oil well. When liquid carbon dioxide is input into the underground oil field, part of the liquid carbon dioxide is prevented from vaporizing, and the empty pipe effect of the transmission pipeline is avoided to damage the carbon dioxide booster pump 17, thereby improving the transmission efficiency of carbon dioxide. The second solenoid valve 14 is opened, and the carbon dioxide booster pump 17 is started to transport the liquid carbon dioxide in the closed box 2 to the underground oil well. At the same time, the multi-stage electric telescopic cylinder 10 is driven to extend and retract, and the piston 11 can be driven to increase the pressure in the closed box 2 to prevent carbon dioxide from vaporizing due to insufficient pressure, thereby improving the transmission efficiency of liquid carbon dioxide. The insulation board 1 is a heating board, which can heat the closed box 2, and the heating is lower than 31°C, to prevent the liquid carbon dioxide from vaporizing and causing the closed box 2 to freeze and frost, and to avoid damage to the closed box 2, thereby improving the service life of the closed box 2.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heated carbon dioxide booster device, comprising a soil layer (8), a working surface (19) being arranged on the soil layer (8), characterized in that: A closed box (2) is arranged on the working surface (19), a multi-stage electric telescopic cylinder (10) is arranged in the closed box (2), a piston (11) is arranged on the telescopic end of the multi-stage electric telescopic cylinder (10), a liquid inlet pipe (5) is arranged on the closed box (2), a first solenoid valve (6) is arranged on the liquid inlet pipe (5), a first check valve (4) is arranged on the liquid inlet pipe (5) and located on one side of the first solenoid valve (6), a first pressure gauge (3) is arranged on the liquid inlet pipe (5) and located on the other side of the first solenoid valve (6), and a first heating belt (7) is arranged on the liquid inlet pipe (5).

2. A heated carbon dioxide booster device according to claim 1, characterized in that: The closed box (2) is provided with a liquid outlet pipe (16), a second solenoid valve (14) is provided on the liquid outlet pipe (16), a second check valve (13) is provided on the liquid outlet pipe (16) and located on one side of the second solenoid valve (14), a second pressure gauge (24) is provided on the liquid outlet pipe (16) and located on the other side of the second solenoid valve (14), and a second heating belt (15) is provided on the liquid outlet pipe (16).

3. A heated carbon dioxide booster device according to claim 2, characterized in that: A carbon dioxide booster pump (17) is arranged on the working surface (19), and the liquid outlet pipe (16) is arranged on the liquid inlet of the carbon dioxide booster pump (17).

4. A heated carbon dioxide boosting device according to claim 3, characterized in that: A cooling pipe (23) is arranged on the liquid outlet of the carbon dioxide booster pump (17), an inner pipe (21) is arranged inside the cooling pipe (23), and a first refrigeration pipe (22) is spirally arranged between the cooling pipe (23) and the inner pipe (21).

5. The heated carbon dioxide boosting device according to claim 4, characterized in that: A refrigerator (18) is arranged on the working surface (19), a second refrigeration pipe (20) is arranged on the refrigerator (18), and the second refrigeration pipe (20) is connected to the first refrigeration pipe (22).

6. A heated carbon dioxide booster device according to claim 5, characterized in that: The closed box (2) is provided with a heat preservation board (1), the heat preservation board (1) is provided with a heat insulation layer (9), and the closed box (2) is provided with a temperature control panel (12).

Images