Simulation device based on water-drive reservoir seepage field
By using a combination of heating wires and cooling water pipes in the simulation device, along with removable baffles and multi-particle-size seepage media, the problem of insufficient temperature control in existing devices is solved, enabling accurate simulation of the seepage field in water-driven reservoirs and providing detailed seepage field characteristic data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-07
AI Technical Summary
Existing water-driven reservoir seepage field simulation devices cannot accurately simulate complex reservoir geological conditions, especially in terms of temperature control, which leads to inaccurate seepage processes.
A simulation device including a heating box and cooling water pipes was designed. By using the combination of heating wires and cooling water pipes, the temperature inside the simulation chamber can be precisely controlled. Different oil reservoir areas are simulated by detachable partitions and layers of quartz sand and gravel with different particle sizes. Pressure and temperature sensors are used for real-time monitoring to ensure that the simulation conditions are consistent with the actual oil reservoir conditions.
It achieves precise control of temperature and pressure during seepage, can simulate complex reservoir geological conditions, provides comprehensive and real-time seepage field characteristic data support, and improves the accuracy and reliability of simulation.
Smart Images
Figure CN224095632U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water-drive reservoir seepage field technology, specifically relating to a simulation device based on the seepage field of a water-drive reservoir. Background Technology
[0002] With the continuous exploitation of oil resources, improving oil recovery has become a crucial issue for the petroleum industry. Waterflooding is one of the most widely used oil recovery methods, and a thorough understanding of the characteristics and patterns of the seepage field in waterflooded reservoirs is of paramount importance for optimizing reservoir development plans and improving oil recovery.
[0003] Currently, to study the seepage patterns in water-driven reservoirs, simulation devices are needed to model the actual reservoir environment. However, existing simulation devices cannot accurately simulate complex reservoir geological conditions and have insufficient temperature control. Different temperature conditions can cause changes in the physical properties of fluids in the reservoir, thereby affecting the seepage process and making it difficult to accurately simulate the complex environment of actual reservoirs. Therefore, there is an urgent need for a simulation device based on the seepage field of water-driven reservoirs to solve the above problems. Utility Model Content
[0004] In view of the problems mentioned above in the background technology, the purpose of this utility model is to provide a simulation device based on the seepage field of water-driven oil reservoirs.
[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0006] A simulation device for seepage field in water-driven oil reservoirs includes a simulation chamber containing a simulation cavity. The top of the simulation chamber is covered, and a transparent observation panel is mounted on the front. A heating box is installed inside the simulation cavity, containing several evenly arranged heating wires. Partitions are installed on the left and right sides of the simulation cavity, and cooling water pipes are installed within these partitions in a serpentine arrangement. Both the inlet and outlet ends of the cooling water pipes are connected to an external cooling water pump. A seepage plate is installed between the partitions on both sides, and a seepage medium filling module is installed on top of the seepage plate. A pressure device is installed within the seepage medium filling module. The system includes several evenly arranged mounting brackets on the top of the enclosure cover, each mounting bracket housing a temperature sensor. The bottom of each temperature sensor extends to the upper side of the seepage medium filling module. A simulated production well is installed on one side of the top of the enclosure cover, and a wellhead pressure sensor is installed inside the simulated production well. The output end of the simulated production well is connected to a transfer pipe, which houses a control valve. The output end of the control valve is connected to a collection cylinder. A water tank is installed at the bottom of the simulation enclosure, and a water pump is installed inside the water tank. The output end of the water pump is connected to a water pipe, the top of which penetrates the simulation enclosure and extends to its bottom. A water flow pressure sensor is installed inside the water pipe.
[0007] Furthermore, the partition is detachably installed within the simulation chamber and comes in different types and sizes. This structural design allows for the simulation of reservoir areas of different shapes and sizes through the installation of detachable partitions.
[0008] Furthermore, the seepage medium filling module comprises layers of quartz sand and gravel of different particle sizes, with the pressure sensor installed between the quartz sand and gravel layers. This structural design can simulate changes in permeability by layering quartz sand and gravel layers of different particle sizes.
[0009] Furthermore, a locking seat is installed on the outside of the collection cylinder, and the locking seat is securely installed on the outside of the simulation box. This structural design facilitates fixed installation on the collection cylinder.
[0010] Furthermore, the water tank has a transparent observation window on its front, with water level markings on the window, and water inlet valves and drain valves installed on the upper and lower sides of the back of the water tank. This structural design allows for monitoring of the water level inside the tank.
[0011] Further specifying, the simulation chamber has support frames installed on both sides of its bottom, a base plate installed at the bottom of the support frames, a water tank mounted on the base plate, self-locking casters installed on all four sides of the bottom of the base plate, and side plates installed on the four sides of the base plate. Each side plate is threadedly connected to a screw, a torsion block is installed at the top of the screw, and an anti-slip seat is installed at the bottom of the screw. This structural design allows the simulation chamber to be moved and fixed in place for use.
[0012] The beneficial effects of this invention are as follows: This invention uses heating wires and cooling water pipes for precise control, ensuring that the temperature inside the simulation chamber is uniform and stable at the set value. Pressure sensors are distributed in different positions within the seepage medium filling module to monitor pressure changes in real time during the seepage process. Temperature sensors are used to monitor the temperature of the simulation environment, ensuring that the simulation conditions conform to the actual situation of the reservoir. This enables precise simulation of complex reservoir geological temperature conditions and also allows for comprehensive and real-time monitoring of various parameters such as pressure, temperature, and flow rate during the seepage process, providing rich and accurate data support for in-depth research on seepage field characteristics. Attached Figure Description
[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0014] Figure 1 This is a schematic diagram of the axial structure of a simulation device based on the seepage field of a water-driven oil reservoir according to an embodiment of the present invention;
[0015] Figure 2This is a schematic cross-sectional view of a simulation device based on the seepage field of a water-driven oil reservoir according to an embodiment of the present invention.
[0016] Figure 3 This is a vertical cross-sectional structural diagram of a simulation device based on the seepage field of a water-driven oil reservoir according to an embodiment of the present invention.
[0017] The symbols for the main components are explained below:
[0018] Simulation box 1, simulation cavity 2, box cover 3, transparent observation plate 4, heating box 5, heating wire 6, partition 7, cooling water pipe 8, seepage plate 9, seepage medium filling module 10, pressure sensor 11, fixing frame 12, temperature sensor 13, simulated production well 14, wellhead pressure sensor 15, adapter pipe 16, control valve 17, collection cylinder 18, water tank 19, water pump 20, water pipe 21, water flow pressure sensor 22, quartz sand layer 23, gravel layer 24, lock seat 25, transparent observation window 26, water supply valve 27, drain valve 28, support frame 29, base plate 30, self-locking caster 31, side plate 32, screw 33, torsion block 34, anti-slip seat 35. Detailed Implementation
[0019] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0020] like Figure 1-3 As shown, this utility model discloses a simulation device for seepage field in a water-driven oil reservoir. The simulation chamber 1 contains a simulation cavity 2, and a cover 3 is installed on the top of the simulation chamber 1. A transparent observation plate 4 is installed on the front of the simulation chamber 1. A heating box 5 is installed inside the simulation cavity 2, containing several evenly arranged heating wires 6. Partitions 7 are installed on the left and right sides of the simulation cavity 2, and cooling water pipes 8 are installed within the partitions 7. The cooling water pipes 8 are arranged in a serpentine structure, and both their input and output ends are connected to an external cooling water pump. A seepage plate 9 is installed between the left and right partitions 7, and a seepage medium filling module 10 is installed on top of the seepage plate 9. A pressure sensor 11 is installed inside the seepage medium filling module 10. The top of the cover 3... Several evenly arranged mounting brackets 12 are installed, and temperature sensors 13 are installed on the mounting brackets 12. The bottom of the temperature sensors 13 extends to the upper side of the seepage medium filling module 10. A simulated production well 14 is installed on one side of the top of the box cover 3. A wellhead pressure sensor 15 is installed inside the simulated production well 14. The output end of the simulated production well 14 is connected to a transfer pipe 16. A control valve 17 is installed inside the transfer pipe 16. The output end of the control valve 17 is connected to a collection cylinder 18. A water tank 19 is installed at the bottom of the simulation box 1. A water pump 20 is installed inside the water tank 19. The output end of the water pump 20 is connected to a water pipe 21. The top of the water pipe 21 passes through the simulation box 1 and extends to its bottom. A water flow pressure sensor 22 is installed inside the water pipe 21.
[0021] Preferably, the partition 7 is detachably installed within the simulation chamber 2 and comes in different types and sizes. This structural design allows for the simulation of reservoir areas of different shapes and sizes through the installation of the detachable partition 7. In practice, other structural shapes of the partition 7 can also be considered depending on the specific circumstances.
[0022] Preferably, the seepage medium filling module 10 includes a quartz sand layer 23 and a gravel layer 24 with different particle sizes, and a pressure sensor 11 is installed between the quartz sand layer 23 and the gravel layer 24. This structural design can simulate changes in permeability by filling the quartz sand layer 23 and the gravel layer 24 with different particle sizes in layers. In practice, other structural shapes of the seepage medium filling module 10 can also be considered depending on the specific circumstances.
[0023] Preferably, a locking seat 25 is installed on the outside of the collection cylinder 18, and the locking seat 25 is locked onto the outside of the simulation box 1. This structural design facilitates fixed installation on the collection cylinder 18. In practice, other installation structure shapes for the collection cylinder 18 can also be considered depending on the specific circumstances.
[0024] Preferably, the water tank 19 has a transparent observation window 26 on its front, with water level markings on the window. A water inlet valve 27 and a water outlet valve 28 are installed on the upper and lower sides of the back of the water tank 19. This structural design allows for monitoring of the water level inside the water tank 19. However, other structural shapes for the water tank 19 can also be considered depending on the specific circumstances.
[0025] Preferably, support frames 29 are installed on both sides of the bottom of the simulation box 1, and a base plate 30 is installed at the bottom of the support frames 29. The water tank 19 is installed on the base plate 30. Self-locking casters 31 are installed on the four sides of the bottom of the base plate 30, and side plates 32 are also installed on the four sides of the base plate 30. The side plates 32 are threadedly connected to screws 33, and a torsion block 34 is installed on the top of the screws 33. An anti-slip seat 35 is installed on the bottom of the screws 33. This structural design allows the simulation box 1 to be moved and fixed for use. In fact, other support and movement structure shapes for the simulation box 1 can also be considered depending on the specific situation.
[0026] In this embodiment, during simulation, the seepage medium filling module 10 is installed inside the simulation chamber 1. Different particle sizes of quartz sand layer 23 and gravel layer 24 are layered to simulate the actual reservoir seepage medium. Simulated oil is injected into the seepage medium filling module 10, and then the chamber cover 3 is closed. The heating wire 6 in the heating box 5 is activated to heat the simulation chamber 2 electrically. The temperature inside the simulation chamber 2 is monitored by the temperature sensor 13 to ensure that the temperature inside the simulation chamber 2 simulates the actual temperature. When the temperature inside the simulation chamber 2 exceeds the value set by the temperature sensor 13, external cold water is connected through the cooling water pipe 8. Since the cooling water pipe 8 is arranged in a serpentine structure... This results in a large contact area, enabling rapid cooling and maintaining the temperature within the simulation chamber 2 within a suitable range, thus controlling the simulated temperature. Then, the water pump 20 starts, pumping water from the water tank 19 into the simulation chamber 2 through the water pipe 21. At this time, the water flow pressure sensor 22 detects the pressure of the input water flow. When artificially injected water flows into the simulation chamber 2, it drives the simulated oil in the seepage medium filling module 10 to flow towards the simulated production well 14, and outputs it to the collection cylinder 18 through the transfer pipe 16. At this time, the wellhead pressure sensor 15 in the simulated production well 14 detects the outflow pressure, achieving the simulation effect of the seepage field in a water-driven oil reservoir.
[0027] Among them, the pressure sensor 11 is distributed in different positions in the seepage medium filling module 10 to monitor the pressure changes in real time during the seepage process; the temperature sensor 13 is used to monitor the temperature of the simulated environment to ensure that the simulated conditions are consistent with the actual situation of the reservoir.
[0028] Precise control is achieved through heating wire 6 and cooling water pipe 8 to ensure that the temperature inside the simulation chamber 2 is uniform and stable at the set value.
[0029] The heating wire 6 is connected to an external temperature controller, which automatically adjusts the heating power of the heating wire according to the set temperature value.
[0030] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A simulation device based on the seepage field of a water-drive oil reservoir, characterized in that: The system includes a simulation chamber (1), which contains a simulation cavity (2). A cover (3) is installed on the top of the simulation chamber (1). A transparent observation plate (4) is installed on the front of the simulation chamber (1). A heating box (5) is installed inside the simulation cavity (2). Several evenly arranged heating wires (6) are installed inside the heating box (5). Partitions (7) are installed on the left and right sides of the simulation cavity (2). Cooling water pipes (8) are installed inside the partitions (7). The cooling water pipes (8) are arranged in a serpentine structure. The input and output ends of the cooling water pipes (8) are connected to an external cooling water pump. A permeation plate (9) is installed between the partitions (7) on the left and right sides. A permeation medium filling module (10) is installed on the top of the permeation plate (9). A pressure sensor (11) is installed inside the permeation medium filling module (10). Several evenly arranged heating wires (6) are installed on the top of the cover (3). The fixed frame (12) is equipped with a temperature sensor (13), the bottom of which extends to the upper side of the seepage medium filling module (10). A simulated production well (14) is installed on one side of the top of the box cover (3). A wellhead pressure sensor (15) is installed in the simulated production well (14). A transfer pipe (16) is connected to the output end of the simulated production well (14). A control valve (17) is installed in the transfer pipe (16). A collection cylinder (18) is connected to the output end of the control valve (17). A water tank (19) is installed at the bottom of the simulation box (1). A water pump (20) is installed in the water tank (19). A water pipe (21) is connected to the output end of the water pump (20). The top of the water pipe (21) passes through the simulation box (1) and extends to its bottom. A water flow pressure sensor (22) is installed in the water pipe (21).
2. The simulation device based on the seepage field of a water-drive reservoir according to claim 1, characterized in that: The partition (7) is detachably installed inside the simulation cavity (2) and comes in different types and sizes.
3. The simulation device based on the seepage field of a water-drive reservoir according to claim 2, characterized in that: The seepage medium filling module (10) includes a quartz sand layer (23) and a gravel layer (24) with different particle sizes, and the pressure sensor (11) is installed between the quartz sand layer (23) and the gravel layer (24).
4. The simulation device based on the seepage field of a water-drive reservoir according to claim 3, characterized in that: A lock seat (25) is installed on the outside of the collection tube (18), and the lock seat (25) is locked on the outside of the simulation box (1).
5. The simulation device based on the seepage field of a water-drive reservoir according to claim 4, characterized in that: The water tank (19) has a transparent observation window (26) on the front, and the transparent observation window (26) has a water level scale. The water tank (19) has a water supply valve (27) and a drain valve (28) installed on the upper and lower sides of the back.
6. The simulation device based on the seepage field of a water-drive reservoir according to claim 5, characterized in that: The simulation box (1) has support frames (29) installed on both sides of its bottom. The bottom of the support frames (29) has a base plate (30) installed on its bottom. The water tank (19) is installed on the base plate (30). The bottom of the base plate (30) has self-locking casters (31) installed on its four sides. The base plate (30) also has side plates (32) installed on its four sides. The side plates (32) are threadedly connected to screws (33). The top of the screws (33) has a torsion block (34) installed on its top. The bottom of the screws (33) has an anti-slip seat (35) installed on its bottom.