Reservoir oil gas overpressure upward migration simulation device

Abstract

The invention relates to the technical field of oil and gas migration simulation devices, in particular to a reservoir oil and gas overpressure upward migration simulation device which comprises a simulation bin, side opening extension plates, an overpressure oil and gas tank and an observation assembly capable of observing upward migration of oil and gas. An upper film is installed between the two side opening extending plates located on the upper portion, an upper sealing space is formed between the upper film and the inner side of the upper end of the simulation bin, a lower film is installed between the two side opening extending plates located on the lower portion, a lower sealing space is formed between the lower film and the inner side of the lower end of the simulation bin, and a plugging cover is installed on the outer side of the right end of the side opening extending plate located on the right portion. The device is reasonable and compact in structure and convenient to use, modeling and pressure applying treatment can be effectively performed on a simulation space by constructing the upper sealed space and the lower sealed space, distribution and trend construction of rock stratum samples are more fit, diversity of geological structures can be simulated, simulation is more real, and experimental results are more accurate.

Description

Technical Field

[0001] This invention relates to the field of oil and gas migration simulation devices, and is a reservoir oil and gas overpressure upward migration simulation device. Background Technology

[0002] In oil and gas exploration and development, understanding the upward migration paths of oil and gas within reservoirs is crucial for decision-making and optimizing development strategies. To conduct in-depth studies on upward oil and gas migration, researchers typically use various migration simulation devices to perform experiments. However, several challenges exist that prevent existing migration simulation devices from fully meeting research needs.

[0003] 1. Difficulty in simulating reservoir strike: The geological structure and strike of a reservoir have a significant impact on oil and gas migration. Due to the diversity of geological structures, existing migration simulation devices often struggle to simulate the geological structure of reservoirs. Designing a migration simulation device that can adapt to different types of reservoirs is a complex task. The lack of accurate geological simulation may lead to deviations in experimental results and limit the understanding of the actual situation. 2. Difficulty in achieving simple observation: Currently, computed tomography (CT) equipment is commonly used for scanning observation. However, many laboratories do not have this equipment, making it inconvenient to conduct oil and gas migration observation. Summary of the Invention

[0004] This invention provides a reservoir oil and gas overpressure upward migration simulation device, which overcomes the shortcomings of the prior art and can effectively solve the problem that existing oil and gas upward migration experiments are difficult to simulate the geological structure of the reservoir, resulting in experimental result deviations.

[0005] The technical solution of the present invention is achieved through the following measures: a reservoir oil and gas overpressure upward migration simulation device, comprising a simulation chamber, side extension plates, an overpressure oil and gas tank, and an observation component capable of observing the upward migration of oil and gas. Side extension plates are installed on both the left and right sides of the simulation chamber. An upper membrane is installed between the two upper side extension plates, forming an upper sealing space between the upper membrane and the inner side of the upper end of the simulation chamber. A lower membrane is installed between the two lower side extension plates, forming a lower sealing space between the lower membrane and the inner side of the lower end of the simulation chamber. A sealing cap is installed on the outer right end of the right side extension plate, and an adjustment cap is installed on the outer left end of the left side extension plate. The overpressure oil and gas tank is connected to the simulation chamber through a pipeline passing through the lower membrane. The upper and lower membranes are provided with shaping parts that can be shaped. The upper and lower sealing spaces are both connected to a pressure-applying structure with the same structure that can apply force to the simulation chamber.

[0006] The following are further optimizations and / or improvements to the above-mentioned technical solution: Preferably, the pressure-applying structure includes a cooler, a water tank, and an oil tank. The cooler is located in the upper sealed space, and the water tank and the oil tank are respectively connected to the upper sealed space.

[0007] Preferably, it also includes a hydraulic cylinder, a pressure plate, and a column. A pressure plate is provided between the membrane and the lower membrane. A hydraulic cylinder is installed on the column. The extended end of the hydraulic cylinder passes through the adjustment cover and connects to the pressure plate. The simulated chamber is rotatably mounted on a rotating support column.

[0008] Preferably, the molding component is a molding telescopic rod, and several molding telescopic rods are provided at intervals on the left and right sides of the simulation chamber. The telescopic ends of the molding telescopic rods pass through the simulation chamber and are connected to the upper or lower membrane respectively.

[0009] Preferably, the observation component includes a three-dimensional manipulator, a grinding disc, a camera, and a feed rod. The three-dimensional moving end of the three-dimensional manipulator is equipped with an integrated base, and the other end of the three-dimensional manipulator is equipped with a feed rod. The grinding disc is mounted on the integrated base, and a camera located behind the grinding disc is mounted on the integrated base. The grinding disc is provided with a through hole for camera shooting.

[0010] Preferably, a suction hood is provided on the outside of the grinding disc.

[0011] The present invention has a reasonable and compact structure and is easy to use. By constructing an upper and lower sealed space, it can effectively shape and pressurize the simulated space, making the distribution and orientation of rock strata samples more closely match, simulating the diversity of geological structures, making the simulation more realistic, and making the experimental results more accurate. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the front cross-sectional structure according to an embodiment of the present invention.

[0013] Appendix Figure 2 For the appendix Figure 1 A schematic diagram of the main view structure of the observation component.

[0014] Appendix Figure 3 This is a schematic diagram of the front sectional view of the structure when the present invention is in use.

[0015] The codes in the attached diagram are as follows: 1. Simulation chamber; 2. Side extension plate; 3. Upper membrane; 4. Lower membrane; 5. Pressure plate; 6. Sealing cap; 7. Overpressure oil and gas tank; 8. Shaped telescopic rod; 9. Water tank; 10. Oil tank; 11. Adjustment cap; 12. Hydraulic cylinder; 13. Column; 14. Grinding disc; 15. Suction hood; 16. Camera; 17. 3D robotic arm; 18. Feeding rod; 19. Rotating support column; 20. Refrigerator. Detailed Implementation

[0016] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0017] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0018] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2 As shown in Figure 3, the reservoir oil and gas overpressure upward migration simulation device includes a simulation chamber 1, side extension plates 2, an overpressure oil and gas tank 7, and an observation component capable of observing the upward migration of oil and gas. Side extension plates 2 are installed on both the left and right sides of the simulation chamber 1. An upper membrane 3 is installed between the two upper side extension plates 2, forming an upper sealing space between the upper membrane 3 and the inner side of the upper end of the simulation chamber 1. A lower membrane 4 is installed between the two lower side extension plates 2, forming a lower sealing space between the lower membrane 4 and the inner side of the lower end of the simulation chamber 1. A sealing cap 6 is installed on the outer side of the right end of the side extension plate 2, and an adjustment cap 11 is installed on the outer side of the left end of the side extension plate 2. The overpressure oil and gas tank 7 is connected to the simulation chamber 1 through the lower membrane 4 via a pipeline. The upper membrane 3 and the lower membrane 4 are provided with shaping parts that can be shaped. The upper sealing space and the lower sealing space are connected to a pressure-applying structure with the same structure that can apply force to the simulation chamber 1.

[0019] The adjustment cover 11, sealing cover 6, upper membrane 3, and lower membrane 4 form a simulated space for placing rock samples. The upper membrane 3 and lower membrane 4 are shaped using a molding component to simulate the morphology and orientation of the upper and lower surfaces of the rock sample. Pressure is applied to the constructed rock surface using a pressure-applying structure to simulate the stress on the upper and lower surfaces of the rock sample. Oil and gas are supplied to the lower side of the rock sample via an overpressure oil and gas tank 7 located on the lower left side of the simulated chamber 1. An observation component monitors the movement of the oil and gas. To better observe this process, the oil and gas can be colored or fluorescently treated. This invention features an upper membrane 3 and lower membrane 4 that conform to the rock surface. The pressure-applying component further protects, shapes, and pressurizes the shaped space, ensuring a closer fit to the rock surface and uniform pressure application. This allows for the simulation of rock diversity and reduces experimental errors.

[0020] The above-mentioned reservoir oil and gas overpressure upward migration simulation device can be further optimized and / or improved according to actual needs: Example 2: As shown in the attached document Figure 1 , 3As shown, the pressurizing structure includes a cooler 20, a water tank 9, and an oil tank 10. The cooler 20 is located within the upper sealed space, and the water tank 9 and oil tank 10 are respectively connected to the upper sealed space. Both the upper and lower sealed spaces are embedded with coolers 20. The coolers 20 can freeze the water supplied by the water tank 9 into ice. When using the coolers 20 to freeze the water, the upper sealed space is processed first, and then the simulation chamber is rotated 180° to process the lower sealed space. The water is frozen, effectively protecting and shaping the already molded space, preventing it from shifting. Furthermore, a gap is left between the ice and the simulation chamber 1 so that the oil tank 10 can inject oil into the gap. The oil can act on the ice and transmit force through the ice, ensuring the uniformity of pressurization.

[0021] Example 3: As shown in the attached document Figure 1 , 3 As shown, it also includes a hydraulic cylinder 12, a pressure plate 5, and a column 13. A pressure plate 5 is provided between the membrane 3 and the lower membrane 4. A hydraulic cylinder 12 is mounted on the column 13, with its extended end passing through an adjustment cover 11 and connecting to the pressure plate 5. The simulation chamber 1 is rotatably mounted on a rotating support column 19. By incorporating the hydraulic cylinder 12, the pressure simulation of the rock sample can be further enhanced. The hydraulic cylinder 12, the oil in the upper sealed space, and the oil in the lower sealed space work together on the rock sample, enabling the rock sample to effectively simulate its stress state.

[0022] Example 4: As shown in the appendix Figure 1 , 3 As shown, the shaping component is a shaping telescopic rod 8. Several shaping telescopic rods 8 are spaced apart on the left and right sides of the simulation chamber 1. The telescopic ends of the shaping telescopic rods 8 pass through the simulation chamber 1 and are connected to the upper membrane 3 or the lower membrane 4 respectively. By adjusting the telescopic state of the shaping telescopic rods 8, the surface distribution and orientation of the rock layer sample can be constructed.

[0023] Example 5: As shown in the attached document Figure 2 As shown, the observation assembly includes a 3D robotic arm 17, a grinding disc 14, a camera 16, and a feed rod 18. An integrated base is mounted on the 3D moving end of the 3D robotic arm 17, and the feed rod 18 is mounted on the other end. The grinding disc 14 is mounted on the integrated base, and the camera 16 is mounted on the integrated base, located behind the grinding disc 14. The grinding disc 14 has through holes for the camera 16 to take pictures. The grinding disc 14 can grind the rock layer sample layer by layer. The feed rod 18 can feed the 3D robotic arm 17 along the length of the simulation chamber 1, exposing the rock layer sample layer by layer. During this process, the camera 16 can take pictures of the rock layer sample layer by layer. Multiple pictures of the rock layer sample can effectively observe the distribution of upward migration of oil and gas. To accurately observe this situation, the oil and gas can be colored or fluorescently treated.

[0024] Example 6: As shown in the appendix Figure 2 As shown, a suction hood 15 is provided on the outside of the grinding disc 14. The suction hood 15 absorbs the grinding powder, making it easy for the camera 16 to take pictures.

[0025] The above technical features constitute various embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A device for simulating the upward migration of reservoir oil and gas under overpressure, characterized in that... The system includes a simulation chamber, side extension plates, an overpressure oil and gas tank, and an observation component for observing the upward migration of oil and gas. Side extension plates are installed on both the left and right sides of the simulation chamber. An upper membrane is installed between the two upper side extension plates, forming an upper sealing space between the upper membrane and the inner side of the upper end of the simulation chamber. A lower membrane is installed between the two lower side extension plates, forming a lower sealing space between the lower membrane and the inner side of the lower end of the simulation chamber. A sealing cap is installed on the outer right end of the right side extension plate, and an adjustment cap is installed on the outer left end of the left side extension plate. The overpressure oil and gas tank is connected to the simulation chamber through a pipeline passing through the lower membrane. The upper and lower membranes are equipped with shaping parts that can be molded. Both the upper and lower sealing spaces are connected to a pressure-applying structure with the same structure that can apply force into the simulation chamber.

2. The reservoir oil and gas overpressure upward migration simulation device according to claim 1, characterized in that... The pressure-applying structure includes a cooler, a water tank, and an oil tank. The cooler is located in the upper sealed space, and the water tank and oil tank are respectively connected to the upper sealed space.

3. The reservoir oil and gas overpressure upward migration simulation device according to claim 1 or 2, characterized in that... It also includes a hydraulic cylinder, a pressure plate, and a column. A pressure plate is provided between the membrane and the lower membrane. A hydraulic cylinder is installed on the column. The extended end of the hydraulic cylinder passes through the adjustment cover and connects to the pressure plate. The simulated chamber is rotatably mounted on a rotating support column.

4. The reservoir oil and gas overpressure upward migration simulation device according to claim 1 or 2, characterized in that... The molding component is a molding telescopic rod. Several molding telescopic rods are spaced apart on the left and right sides of the simulation chamber. The telescopic ends of the molding telescopic rods pass through the simulation chamber and are connected to the upper or lower membrane respectively.

5. The reservoir oil and gas overpressure upward migration simulation device according to claim 3, characterized in that... The molding component is a molding telescopic rod. Several molding telescopic rods are spaced apart on the left and right sides of the simulation chamber. The telescopic ends of the molding telescopic rods pass through the simulation chamber and are connected to the upper or lower membrane respectively.

6. The reservoir oil and gas overpressure upward migration simulation device according to claim 1, 2, or 5, characterized in that the observation... The components include a 3D robotic arm, a grinding disc, a camera, and a feed rod. An integrated base is mounted on the 3D moving end of the 3D robotic arm, and a feed rod is mounted on the other end of the 3D robotic arm. The grinding disc is mounted on the integrated base, and a camera located behind the grinding disc is mounted on the integrated base. The grinding disc has a through hole for the camera to take pictures.

7. The reservoir oil and gas overpressure upward migration simulation device according to claim 3, characterized in that the observation... The components include a 3D robotic arm, a grinding disc, a camera, and a feed rod. An integrated base is mounted on the 3D moving end of the 3D robotic arm, and a feed rod is mounted on the other end of the 3D robotic arm. The grinding disc is mounted on the integrated base, and a camera located behind the grinding disc is mounted on the integrated base. The grinding disc has a through hole for the camera to take pictures.

8. The reservoir oil and gas overpressure upward migration simulation device according to claim 4, characterized in that the observation... The components include a 3D robotic arm, a grinding disc, a camera, and a feed rod. An integrated base is mounted on the 3D moving end of the 3D robotic arm, and a feed rod is mounted on the other end of the 3D robotic arm. The grinding disc is mounted on the integrated base, and a camera located behind the grinding disc is mounted on the integrated base. The grinding disc has a through hole for the camera to take pictures.

9. The reservoir oil and gas overpressure upward migration simulation device according to claim 6, characterized in that... The grinding disc is equipped with a suction hood.

10. The reservoir oil and gas overpressure upward migration simulation device according to claim 7 or 8, characterized in that... The grinding disc is equipped with a suction hood.

Images