An oil and gas migration and accumulation simulation device

Abstract

The utility model discloses an oil and gas migration and accumulation simulation device, including simulation square box, still include intelligent controller, the inside of simulation square box is fixed from top to bottom in proper order with the fixed baffle of ventilating net board, the inside of simulation square box is provided with the air pressure sensor and temperature sensor of being located ventilating net board top, simulation square box inside bottom end is provided with booster air pump and hot blast engine, and the air outlet of booster air pump and the air outlet of hot blast engine all extend setting between ventilating net board and fixed baffle, intelligent controller with air pressure sensor, temperature sensor, booster air pump and hot blast engine all electric connection. The utility model discloses utilize the air pressure sensor to feel the air pressure height in simulation square box, can start booster air pump to the simulation square box in through intelligent controller and pressurize, prevent in the oil and gas migration simulation experiment of carrying out and can take place pressure too low, make simulation experiment time pressure steady, improve the success rate of carrying out simulation experiment, with the advantage that it is more convenient to adjust air pressure according to demand.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas migration technology, specifically to an oil and gas migration and accumulation simulation device. Background Technology

[0002] The flow of oil and natural gas in the Earth's crust under the influence of various natural factors is called oil and gas migration. Oil and gas migration can lead to the enrichment of oil and natural gas in appropriate locations (traps) of reservoirs, forming oil and gas reservoirs, which is called oil and gas accumulation. There are two basic modes of oil and gas migration: infiltration and diffusion. In tight rock formations with poor porosity and permeability, diffusion flow is the main mode. However, it is difficult to conduct field studies when studying the flow patterns of oil and gas migration. Therefore, in order to facilitate the advancement of research, it is necessary to use simulation devices for auxiliary research.

[0003] In the prior art, the invention patent application with application number CN202210052045.8 discloses a physical simulation device for hydrocarbon source rock expulsion and oil and gas migration and accumulation. The device includes a support frame with a flipping mechanism connected to it to support and connect the main body of the model and adjust the tilt angle. The main body of the model is filled with a stratum model, and injection points are arranged around the outer periphery of the main body of the model. A simulated injection tube is connected through the injection points. One end of the simulated injection tube is inserted into the stratum model and a simulated blasting grenade is provided. The stratum model is pre-compacted using a compaction component and then sealed using a visualization structure. Different injection points are selected to connect to the simulated injection tube until the pressure accumulated at the simulated blasting grenade reaches the breakthrough pressure value, so as to inject into the stratum model. During the process, the simulated oil and gas migration is observed and recorded through the visualization structure to realize the simulation of hydrocarbon generation and expulsion from source rocks, as well as the migration and accumulation patterns under different geological configurations.

[0004] The aforementioned patent discloses a physical simulation device for hydrocarbon source rock expulsion, hydrocarbon migration, and reservoir formation based on hydrocarbon migration patterns, thus facilitating research. However, this device has an open-top structure, making it susceptible to external environmental factors during hydrocarbon accumulation simulations. This can lead to insufficient internal pressure, resulting in errors in the simulation results. Furthermore, the experimental pressure cannot be adjusted as needed during the simulation. Utility Model Content

[0005] The purpose of this invention is to provide an oil and gas migration and accumulation simulation device, which aims to improve the existing oil and gas migration simulation devices that are easily affected by external environmental factors, resulting in insufficient pressure inside the device and errors in the oil and gas migration simulation experimental results; and that the experimental pressure cannot be adjusted at any time according to actual research needs during the simulation experiment, making it difficult to accurately simulate the oil and gas migration and accumulation laws under different pressure conditions; further affecting the pressure stability and the accuracy of experimental data.

[0006] This utility model is implemented as follows:

[0007] An oil and gas migration and accumulation simulation device includes a simulation box and an intelligent controller. Inside the simulation box, a permeable mesh plate and a fixed partition are fixedly arranged sequentially from top to bottom. A pressure sensor and a temperature sensor are installed inside the simulation box, located above the permeable mesh plate. A booster pump and a hot air blower are installed at the bottom of the simulation box, with the outlets of the booster pump and the hot air blower extending between the permeable mesh plate and the fixed partition. The intelligent controller is electrically connected to the pressure sensor, temperature sensor, booster pump, and hot air blower.

[0008] Preferably, the upper surface of the simulated box is fixedly connected to a feeding cylinder, and a detachable cover plate is sealed and installed on the feeding cylinder.

[0009] Preferably, a fastening screw is vertically and rotatably installed on the side of the simulated box near the cover plate, and a handle is provided at the end of the fastening screw. The cover plate is raised and lowered in the upper port of the feeding cylinder by means of the fastening screw.

[0010] Preferably, the cover plate includes a sealing gasket, and the bottom surface of the cover plate is provided with a sealing gasket that is compatible with the upper port of the feeding cylinder.

[0011] Preferably, a fixed box is provided on the side of the simulated box near the cover plate, and a bearing is provided on the fixed box. The fastening screw is rotatably mounted on the fixed box through the bearing. The upper end of the fastening screw extends through the fixed box and extends to the top to provide a rotating handle. A lifting plate is threaded on the shaft of the fastening screw. A through hole is opened on the side of the fixed box near the cover plate. The end of the lifting plate near the cover plate passes through the through hole and is fixedly connected to the upper end face of the cover plate.

[0012] Preferably, the fixed box further includes multiple support rods, and the lower end face of the fixed box and the back plate of the simulated square box are reinforced and supported by the multiple support rods.

[0013] Preferably, the simulated box further includes an observation window, louvers, and support legs; the front of the simulated box is provided with an observation window, the side of the simulated box is provided with louvers in the area below the fixed partition, and multiple support legs are evenly distributed on the lower end face of the simulated box.

[0014] Preferably, the breathable mesh panel includes an air guide plate, and multiple sets of air guide plates are provided on the lower end face of the breathable mesh panel.

[0015] Preferably, the outlet of the booster air pump is connected to a vent pipe, and the end of the vent pipe away from the booster air pump extends through the fixed partition and between the vent mesh plate and the fixed partition plate; the outlet of the hot air blower is connected to a guide pipe, and the end of the guide pipe away from the hot air blower extends through the fixed partition and between the vent mesh plate and the fixed partition plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, through the combined use of a booster air pump, a vent pipe, a breathable mesh plate, and a guide plate, can use a pressure sensor to sense the air pressure level inside the simulated box. The booster air pump can be activated by an intelligent controller to pressurize the simulated box, preventing excessively low pressure during oil and gas migration simulation experiments. This achieves a stable pressure during simulation experiments, improves the success rate of simulation experiments, and has the advantage of making it more convenient to adjust the air pressure according to needs.

[0018] 2. This utility model, through the combined use of a hot air blower, an air duct, and a temperature sensor, can measure the temperature inside the simulated box using the temperature sensor. The hot air blower and air duct can then be used to raise the temperature inside the simulated box, preventing the temperature inside the simulated box from becoming too low during simulation experiments. This ensures a constant temperature for the staff during the simulation experiments, guarantees their safety, and greatly improves the success rate of the experiments. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front;

[0020] Figure 2 This is a schematic diagram of the internal structure of the simulated square box of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the fixing box of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the simulated square box side of this utility model.

[0023] In the diagram: 1. Simulated box; 2. Observation window; 3. Louver; 4. Support leg; 5. Intelligent controller; 6. Feeding cylinder; 7. Air pressure sensor; 8. Temperature sensor; 9. Ventilation mesh plate; 10. Fixed partition; 11. Booster air pump; 12. Ventilation pipe; 13. Support block; 14. Horizontal plate; 15. Hot air blower; 16. Air guide pipe; 17. Air guide plate; 18. Fixed box; 19. Bearing; 20. Fastening screw; 21. Lifting plate; 22. Rotary handle; 23. Cover plate; 24. Sealing gasket; 25. Support rod; 26. Through hole. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0026] Example 1

[0027] like Figure 2 and Figure 4As shown, an oil and gas migration and accumulation simulation device includes a simulation box 1 and an intelligent controller 5. Inside the simulation box 1, a permeable mesh plate 9 and a fixed partition plate 10 are fixedly installed from top to bottom. The fixed partition plate 10 is fixed and sealed to the side wall of the simulation box 1, thus dividing the simulation box 1 into two areas. Inside the simulation box 1, a pressure sensor 7 and a temperature sensor 8 are installed above the permeable mesh plate 9. A booster pump 11 and a hot air blower 15 are installed at the bottom of the simulation box 1. The air outlets of the booster pump 11 and the hot air blower 15 extend between the permeable mesh plate 9 and the fixed partition plate 10. Two support blocks 13 are fixedly connected to the inner bottom wall of the simulation box 1. A horizontal plate 14 is fixedly connected to the upper surface of the two support blocks 13, and the hot air blower 15 is supported and installed via the horizontal plate 14. The outlet of the booster air pump 11 is connected to a vent pipe 12. The end of the vent pipe 12 away from the booster air pump 11 extends through the fixed partition 10 and between the ventilated mesh plate 9 and the fixed partition 10. The outlet of the hot air blower 15 is connected to a guide pipe 16. The end of the guide pipe 16 away from the hot air blower 15 extends through the fixed partition 10 and between the ventilated mesh plate 9 and the fixed partition 10. The ventilated mesh plate 9 includes guide plates 17, and multiple sets of guide plates 17 are provided on the lower end face of the ventilated mesh plate 9. The guide plates 17 allow the upward-blowing air to be blown upwards evenly, improving the uniformity of the airflow. The intelligent controller 5 is electrically connected to the pressure sensor 7, temperature sensor 8, booster air pump 11, and hot air blower 15. The pressure sensor 7 and temperature sensor 8 can detect the air pressure and temperature inside the simulated box 1. The intelligent controller 5 uses a Siemens S7-1200 series PLC controller, which has abundant analog input / output interfaces. It can accurately connect to the signals of the pressure sensor 7 and temperature sensor 8, and stably drive actuators such as the booster pump 11 and the hot air blower 15. It supports multiple programming methods such as ladder diagrams and SCL, allowing for flexible adjustment of control logic according to experimental needs. It also has strong anti-interference capabilities, ensuring that the simulation device maintains control accuracy during long-term operation. Based on the detection results, the intelligent controller 5 controls the booster pump 11 to pressurize the simulated box 1, preventing excessively low pressure during oil and gas migration simulation experiments, thus achieving a stable pressure during the simulation experiment.

[0028] like Figures 1-4As shown, the simulated box 1 also includes an observation window 2, louvers 3, and support legs 4. The front of the simulated box 1 has an observation window 2, and the sides of the simulated box 1 corresponding to the area below the fixed partition 10 have louvers 3. Multiple support legs 4 are evenly distributed on the lower end face of the simulated box 1. A feeding cylinder 6 is fixedly connected to the upper surface of the simulated box 1, and a removable cover plate 23 is sealed and installed on the feeding cylinder 6. The cover plate 23 includes a sealing gasket 24, and the bottom surface of the cover plate 23 has a sealing gasket 24 that matches the upper port of the feeding cylinder 6. A fastening screw 20 is vertically and rotatably installed on the side of the simulated box 1 near the cover plate 23. A handle 22 is provided at the end of the fastening screw 20, and the cover plate 23 can be raised and lowered in the upper port of the feeding cylinder 6 via the fastening screw 20. A fixed box 18 is provided on the side of the simulated square box 1 near the cover plate 23. A bearing 19 is provided on the fixed box 18, and a fastening screw 20 is rotatably mounted on the fixed box 18 via the bearing 19. The upper end of the fastening screw 20 extends through the fixed box 18 to a handle 22 located above it. A lifting plate 21 is threaded onto the shaft of the fastening screw 20. A through hole 26 is provided on the side of the fixed box 18 near the cover plate 23, and the end of the lifting plate 21 near the cover plate 23 passes through the through hole 26 and is fixedly connected to the upper end face of the cover plate 23. The fixed box 18 also includes multiple support rods 25, which reinforce and support the lower end face of the fixed box 1 and the back plate of the simulated square box 1. The fastening screw 20 can be rotated via the handle 22, causing the lifting plate 21 and the cover plate 23 to move up and down. When the cover plate 23 moves, it seals the top of the feeding cylinder 6, improving its sealing performance and ensuring more stable pressure, thus offering the advantage of greater ease of use. The transparent observation window 2 makes it easier for staff to observe, improving the convenience of observation and making it more practical.

[0029] Example 2

[0030] like Figure 2 and Figure 4As shown, an oil and gas migration and accumulation simulation device includes a simulation box 1 and an intelligent controller 5. Inside the simulation box 1, a permeable mesh plate 9 and a fixed partition plate 10 are fixedly arranged from top to bottom. Inside the simulation box 1, a pressure sensor 7 and a temperature sensor 8 are located above the permeable mesh plate 9. At the bottom of the simulation box 1, a booster pump 11 and a hot air blower 15 are arranged. The air outlets of both the booster pump 11 and the hot air blower 15 extend between the permeable mesh plate 9 and the fixed partition plate 10. The air outlet of the booster pump 11 is connected to a vent pipe 12, with one end of the vent pipe 12, away from the booster pump 11, passing through the fixed partition plate 10 and extending between the permeable mesh plate 9 and the fixed partition plate 10. The air outlet of the hot air blower 15 is connected to a guide pipe 16, with one end of the guide pipe 16, away from the hot air blower 15, passing through the fixed partition plate 10 and extending between the permeable mesh plate 9 and the fixed partition plate 10. The breathable mesh panel 9 includes air guide plates 17, and multiple sets of air guide plates 17 are provided on the lower end face of the breathable mesh panel 9. The intelligent controller 5 is electrically connected to the air pressure sensor 7, temperature sensor 8, booster air pump 11, and hot air blower 15.

[0031] like Figures 1-4 As shown, the simulated box 1 also includes an observation window 2, louvers 3, and support legs 4. The front of the simulated box 1 has an observation window 2, and the sides of the simulated box 1 corresponding to the area below the fixed partition 10 have louvers 3. Multiple support legs 4 are evenly distributed on the lower end face of the simulated box 1. A feeding cylinder 6 is fixedly connected to the upper surface of the simulated box 1, and a removable cover plate 23 is sealed and installed on the feeding cylinder 6. The cover plate 23 includes a sealing gasket 24, and the bottom surface of the cover plate 23 has a sealing gasket 24 that matches the upper port of the feeding cylinder 6. A fastening screw 20 is vertically and rotatably installed on the side of the simulated box 1 near the cover plate 23. A handle 22 is provided at the end of the fastening screw 20, and the cover plate 23 can be raised and lowered in the upper port of the feeding cylinder 6 via the fastening screw 20. A fixed box 18 is provided on the side of the simulated box 1 near the cover plate 23. A bearing 19 is provided on the fixed box 18, and a fastening screw 20 is rotatably mounted on the fixed box 18 through the bearing 19. The upper end of the fastening screw 20 extends through the fixed box 18 and extends to the top, where a handle 22 is provided. A lifting plate 21 is threaded onto the shaft of the fastening screw 20. A through hole 26 is opened on the side of the fixed box 18 near the cover plate 23, and the end of the lifting plate 21 near the cover plate 23 passes through the through hole 26 and is fixedly connected to the upper end face of the cover plate 23. The fixed box 18 also includes multiple support rods 25, which reinforce and support the lower end face of the fixed box 18 and the back plate of the simulated box 1.

[0032] Working principle: When using this oil and gas migration and accumulation simulation device, the user first puts the formation model into the simulation box 1 through the feeding cylinder 6, so that the formation model is laid flat on the upper side of the permeable mesh plate 9 to facilitate the simulation of oil and gas movement. Then, the power is turned on, and the fastening screw 20 is rotated by the handle 22. When the fastening screw 20 rotates, it drives the lifting plate 21, the cover plate 23, and the sealing gasket 24 to cover the feeding cylinder 6, keeping the simulation box 1 sealed. The situation inside the simulation box 1 is observed through the transparent observation window 2. The pressure sensor 7 is used to measure the pressure inside the simulation box 1, and the temperature sensor 8 is used to measure the pressure inside the simulation box 1. Temperature: When the air pressure is too low, the air pressure sensor 7 transmits an electrical signal to the intelligent controller 5. The intelligent controller 5 then starts the booster pump 11, which pressurizes the simulated box 1 through the ventilation pipe 12 and the permeable mesh plate 9 to simulate the oil and gas movement of the formation model under different pressure environments. When the temperature is too low, the temperature sensor 8 transmits an electrical signal to the intelligent controller 5. The intelligent controller 5 then starts the hot air blower 15, which heats the simulated box 1 through the air guide pipe 16 and the permeable mesh plate 9. This allows the pressure inside the simulated box 1 to be adjusted as needed, improving the success rate of the simulation experiment.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An oil and gas migration and accumulation simulation device, comprising a simulation box (1), characterized in that, It also includes an intelligent controller (5). The simulated box (1) is fixedly provided with a breathable mesh plate (9) and a fixed partition plate (10) from top to bottom. The simulated box (1) is provided with a pressure sensor (7) and a temperature sensor (8) located above the breathable mesh plate (9). The simulated box (1) is provided with a booster air pump (11) and a hot air blower (15) at the bottom of the simulated box (1). The air outlet of the booster air pump (11) and the air outlet of the hot air blower (15) are both extended between the breathable mesh plate (9) and the fixed partition plate (10). The intelligent controller (5) is electrically connected to the pressure sensor (7), the temperature sensor (8), the booster air pump (11) and the hot air blower (15).

2. The oil and gas migration and accumulation simulation device according to claim 1, characterized in that, The upper surface of the simulated box (1) is fixedly connected to a feeding cylinder (6), and a detachable cover plate (23) is sealed on the feeding cylinder (6).

3. The oil and gas migration and accumulation simulation device according to claim 2, characterized in that, The simulated box (1) is vertically and rotatably mounted with a fastening screw (20) on the side near the cover plate (23). The end of the fastening screw (20) is provided with a handle (22). The cover plate (23) can be raised and lowered in the upper port of the feeding cylinder (6) through the fastening screw (20).

4. The oil and gas migration and accumulation simulation device according to claim 3, characterized in that, The cover plate (23) includes a sealing gasket (24), and the bottom surface of the cover plate (23) is provided with a sealing gasket (24) that is compatible with the upper port of the feeding cylinder (6).

5. The oil and gas migration and accumulation simulation device according to claim 3, characterized in that, The simulated box (1) has a fixed box (18) on the side near the cover plate (23). The fixed box (18) is equipped with a bearing (19). The fastening screw (20) is rotatably mounted on the fixed box (18) through the bearing (19). The upper end of the fastening screw (20) extends through the fixed box (18) and is provided with a handle (22) above. A lifting plate (21) is threaded on the shaft of the fastening screw (20). The fixed box (18) has a through hole (26) on the side near the cover plate (23). The end of the lifting plate (21) near the cover plate (23) passes through the through hole (26) and is fixedly connected to the upper surface of the cover plate (23).

6. The oil and gas migration and accumulation simulation device according to claim 5, characterized in that, The fixed box (18) also includes multiple support rods (25), and the lower end face of the fixed box (18) and the back plate of the simulated square box (1) are reinforced and supported by multiple support rods (25).

7. The oil and gas migration and accumulation simulation device according to claim 1, characterized in that, The simulated box (1) also includes an observation window (2), louvers (3) and support legs (4); the front of the simulated box (1) is provided with an observation window (2), the side of the simulated box (1) is provided with louvers (3) corresponding to the area below the fixed partition (10), and multiple support legs (4) are evenly distributed on the lower end face of the simulated box (1).

8. The oil and gas migration and accumulation simulation device according to claim 1, characterized in that, The breathable mesh plate (9) includes an air guide plate (17), and multiple sets of air guide plates (17) are provided on the lower end face of the breathable mesh plate (9).

9. The oil and gas migration and accumulation simulation device according to claim 1, characterized in that, The outlet of the booster air pump (11) is connected to a vent pipe (12), and the end of the vent pipe (12) away from the booster air pump (11) extends through the fixed partition (10) and between the vent mesh plate (9) and the fixed partition plate (10); the outlet of the hot air blower (15) is connected to a guide pipe (16), and the end of the guide pipe (16) away from the hot air blower (15) extends through the fixed partition plate (10) and between the vent mesh plate (9) and the fixed partition plate (10).

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