Multistage streamline oil reservoir injection-production effect simulation device

Abstract

The invention provides a multi-stage streamline oil reservoir injection-production effect simulation device, and belongs to the technical field of oil and gas field development. Two supports are fixedly installed on the two sides of a base. The water tank is arranged on the base; the experiment box is positioned above the water tank; the experiment box is movably connected to the two supports through the two supporting blocks. The experiment box can be put into the water tank and lifted from the water tank through the lifting device; the experiment box is provided with a water cavity and an oil layer cavity. The water cavity is located above the oil layer cavity. The water cavity is provided with a water inlet and outlet; the oil layer cavity is provided with an air inlet and communicated with an oil discharge channel, and the air inlet is connected with a compression pump machine; the experiment box is provided with a heater, the oil layer cavity is provided with a heating plate, and the heater is connected with the heating plate; the controller is connected with the driving device; the driving device is connected with the supporting block and the lifting device. The air tightness of the pipeline can be detected more conveniently, the pipeline does not need to be filled with water for detection, the cleanliness of the pipeline before an experiment can be kept, and then the accuracy of experimental data can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil and gas field development, and particularly relates to a multi-stage flow line oil reservoir injection-production effect simulation device. BACKGROUND

[0002] Carbon dioxide flooding technology is one of the effective oil reservoir oil production methods, which injects carbon dioxide into the wellhead by using the physical properties of carbon dioxide, and drives the crude oil to move to the oil production well through the mechanism of dissolution or expansion. However, in the actual carbon dioxide flooding process, due to the complex geological structure of the oil reservoir and different physical properties of the oil reservoir, the oil production effect is different in different geological environments.

[0003] Before the simulation operation, the gas tightness of the gas delivery pipeline and the oil outlet pipeline needs to be tested respectively, and the existing simulation device is complicated to operate when testing the gas tightness, and part of the water in the gas delivery pipeline and the oil outlet pipeline will remain during the detection, which will affect the accuracy of the later oil displacement experiment. Therefore, in order to better understand and simulate the carbon dioxide flooding process, a multi-stage flow line oil reservoir injection-production effect simulation device is needed to simulate the oil production process in different geological environments.

[0004] Chinese patent application document CN111608621A discloses a carbon dioxide flooding multi-stage flow line injection-production simulation device and simulation method. In the simulation device, the shell has an opening for installing a simulation reservoir module and a pipe string module, the simulation reservoir module includes a simulation reservoir and at least three injection-production holes communicating with the simulation reservoir, the pipe string module includes an injection-production pipe string corresponding to each injection-production hole, and a valve arranged at each injection-production pipe string. The pipe string module is configured to change the multi-stage flow line injection-production relationship by controlling the opening and closing of the valves, thereby completing the simulation of the conversion of the current well pattern to the target well pattern. The carbon dioxide flooding multi-stage flow line injection-production simulation device and simulation method provided by the patent can simulate the carbon dioxide flooding and dynamic geological storage process in a complex well pattern environment, and can meet the research of the micro seepage law after well pattern conversion. However, the detection and management of gas tightness are not convenient, and the cleanliness of the pipeline before the experiment cannot be maintained, resulting in inaccurate experimental data. SUMMARY

[0005] To solve the problems in the prior art, the present application aims to provide a multi-stage flow line oil reservoir injection-production effect simulation device to solve the problem that the existing simulation device is complicated to operate when testing the gas tightness, and part of the water in the gas delivery pipeline and the oil outlet pipeline will remain during the detection, affecting the accuracy of the later oil displacement experiment.

[0006] The present application provides a multi-stage flow line oil reservoir injection-production effect simulation device, which comprises a base, two supports, a water tank, an experimental box, a driving device, a lifting device, two supporting blocks and a controller; the two supports are fixedly installed on the two sides of the base;

[0007] The water tank is arranged on the base, and the experiment box is located above the water tank; the experiment box is movably connected to the two supports through the two supporting blocks;

[0008] The experiment box can be put into and lifted out of the water tank through the lifting device;

[0009] The experiment box has a water cavity and an oil layer cavity, the water cavity is located above the oil layer cavity; the water cavity is provided with a water inlet and outlet; the oil layer cavity is provided with an air inlet and is communicated with an oil outlet channel, and the air inlet is connected with a compression pump;

[0010] The experiment box is provided with a heater, and the oil layer cavity is provided with a heating plate, and the heater is connected with the heating plate;

[0011] The controller is connected with the driving device; the driving device is connected with the supporting block and the lifting device, respectively.

[0012] Preferably, the driving device comprises a first push rod motor and a driving motor, the first push rod motor is connected with the supporting block; the driving motor is connected with the lifting device.

[0013] Preferably, the driving device further comprises a second push rod motor, the second push rod motor is connected with the experiment box and controls the drainage of the water cavity.

[0014] Preferably, a piston is arranged inside the experiment box, the second push rod motor is connected with the piston and controls the movement of the piston to realize the drainage of the experiment box.

[0015] Preferably, the lifting device comprises a lifting plate and a lead screw, the lead screw is movably connected with the water tank through a bearing, and the lifting plate is movably mounted outside the lead screw.

[0016] Preferably, a driving motor is fixedly mounted at the bottom end of the inside of the water tank, a first pulley is fixedly mounted at the output shaft end of the driving motor, shaft supports are fixedly mounted at the top ends of both sides of the water tank, the lead screws are movably mounted at the bottom end of the water tank through bearings, a second pulley is fixedly mounted at the bottom end of each lead screw, the first pulley is movably connected with the second pulleys at both ends through two belts, and a first assembly support is fixedly mounted at the top end of the lifting plate.

[0017] Preferably, the top end of the two supports is fixedly installed with a top plate, the two sides of the top plate are fixedly installed with first racks, the top end of the two first racks is fixedly installed with first push rod motors, the output shaft of the first push rod motor is fixedly connected with the support block through the support, the experiment box is clamped between the two support blocks, and the top end of the experiment box is provided with clamping grooves on both sides.

[0018] Preferably, the side of the support block close to the clamping groove is fixedly installed with a positioning sensor, and the positioning sensor is connected with the controller.

[0019] Preferably, the bottom end of the experiment box is fixedly installed with a second assembly rack, the inside of the experiment box is horizontally installed with a partition plate, the oil layer cavity is arranged at the bottom end of the experiment box close to the partition plate, and the water cavity is arranged at the top end of the experiment box close to the partition plate.

[0020] Preferably, the top end of the experiment box is respectively installed with a plurality of gas supply pipes and oil outlet pipes on both sides, and the bottom end of the gas supply pipe and the bottom end of the oil outlet pipe are communicated with the oil layer cavity through the partition plate.

[0021] Preferably, the top end of the top plate is fixedly installed with a machine box on one side, the inside of the machine box is fixedly installed with a compression pump, and the two ends of the compression pump are connected with the air inlet and the shunt pipe respectively.

[0022] Preferably, the top end of the two supports is fixedly installed with a second rack on the inner side surface, the two second racks are on the same horizontal line as the first racks, the top end of the two second racks is provided with a guide groove on the upper surface, the bottom end of the support block is fixedly connected with a guide block, and the guide block is slidably connected with the guide groove.

[0023] Preferably, the middle part of the flange is provided with an electric valve, the controller is installed on the top end of the machine box, and the controller is connected with the electric valve.

[0024] Preferably, the inner wall of the water tank is provided with a sliding groove on both sides, the outer side of the two ends of the lifting plate is fixedly installed with a sliding block, and the sliding block is slidably connected with the sliding groove.

[0025] Preferably, the bottom end of the water tank is communicated with a liquid level sensor on one side, the top end of the side of the water tank close to the liquid level sensor is communicated with a water filling pipe, and the bottom end of the side of the water tank away from the liquid level sensor is communicated with a drain pipe.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] (1) The present application can lift the experimental box into the water tank through the lifting device during the experiment, and can control the experimental box to rise after the experiment, which is more convenient when detecting the gas tightness of the pipeline, and can maintain the cleanliness of the pipeline before the experiment, thereby improving the accuracy of the experimental data.

[0028] (2) The present application can suspend the experimental box at the top of the water tank in daily use, avoiding long-term immersion in water, which can cause water to enter the heater shell at the bottom, and after the experimental box is raised, the residual material formed on the external surface due to impurities in the water can be easily cleaned, so that the line of sight is not affected when observed externally.

[0029] (3) In the present application, the heater at the bottom of the experimental box is started during the experiment, and the ceramic heating plate inside the oil layer cavity is heated after the heater is started, and then the oil inside the oil layer cavity is heated and warmed up, and then the oil outflow state of the oil layer is observed with temperature change, so that the changes of the oil layer under the influence of different factors can be observed and recorded by changing the experimental parameters. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the multi-stage streamline oil reservoir injection-production effect simulation device of an embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the driving motor installation of the multi-stage streamline oil reservoir injection-production effect simulation device of an embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the heater installation of the multi-stage streamline oil reservoir injection-production effect simulation device of an embodiment of the present application.

[0033] Figure 4 It is a schematic diagram of the first assembly frame installation of the multi-stage streamline oil reservoir injection-production effect simulation device of an embodiment of the present application.

[0034] Figure 5 It is a schematic diagram of the support block installation of the multi-stage streamline oil reservoir injection-production effect simulation device of an embodiment of the present application.

[0035] Figure 6 It is a schematic diagram of the compression pump installation of the multi-stage streamline oil reservoir injection-production effect simulation device of an embodiment of the present application.

[0036] In the diagram, 1. Base; 2. Water tank; 3. Drive motor; 4. First pulley; 5. Shaft bracket; 6. Lead screw; 7. Second pulley; 8. Lifting plate; 9. First assembly frame; 10. Support; 11. Top plate; 12. First frame; 13. First push rod motor; 14. Support block; 15. Experimental chamber; 16. Slot; 17. Second assembly frame; 18. Partition; 19. Oil layer chamber; 20. Water chamber; 21. Air supply pipe; 22. Chassis; 23. Compressor pump; 4. Air inlet; 25. Diverter pipe; 26. Connecting pipe; 27. Corrugated pipe; 28. Flange; 29. ​​Second push rod motor; 30. Piston; 31. Inlet and outlet pipes; 32. Heater; 33. Heating plate; 34. Second frame; 35. Guide groove; 36. Guide block; 37. Slide groove; 38. Slider; 39. Liquid level sensor; 40. Water inlet pipe; 41. Drain pipe; 42. Electric valve; 43. Controller; 44. Positioning sensor; 45. Oil outlet pipe. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-6 The specific embodiments of the present invention will be described in detail below.

[0038] The present invention provides a multi-stage streamline reservoir injection and production effect simulation device, comprising: a base 1, two supports 10, a water tank 2, an experimental chamber 15, a drive device, a lifting device, two support blocks 14 and a controller 43; the two supports 10 are fixedly installed on both sides of the base 1;

[0039] The water tank 2 is mounted on the base 1, and the experimental box 15 is located above the water tank 2; the experimental box 15 is movably connected to the two supports 10 via two support blocks 14;

[0040] The experimental box 15 can be placed into the water tank 2 and lifted out of the water tank 2 via the lifting device;

[0041] The experimental chamber 15 has a water chamber 20 and an oil layer chamber 19. The water chamber 20 is located above the oil layer chamber 19. The water chamber 20 is provided with an inlet and outlet 31. The oil layer chamber 19 is provided with an air inlet 24 and is connected to an oil discharge channel. The air inlet 24 is connected to a compressor pump 23.

[0042] The experimental chamber 15 is equipped with a heater 32, and the oil layer cavity 19 is equipped with a heating plate 33. The heater 32 is connected to the heating plate 33.

[0043] The controller 43 is connected to the drive device; the drive device is connected to the support block 14 and the lifting device respectively.

[0044] In one embodiment of the present invention, the driving device includes a first push rod motor 13 and a drive motor 3, wherein the first push rod motor 13 is connected to the support block 14; and the drive motor 3 is connected to the lifting device.

[0045] In one embodiment of the present invention, the driving device further includes a second push rod motor 29, which is connected to the experimental chamber 15 and controls the drainage of the water chamber 20.

[0046] In one embodiment of the present invention, a piston 30 is provided inside the experimental chamber 15, and the second push rod motor 29 is connected to the piston 30 to control the movement of the piston 30, thereby realizing the drainage of the experimental chamber 15.

[0047] In one embodiment of the present invention, the lifting device includes a lifting plate 8 and a lead screw 6. The lead screw 6 is movably connected to the water tank 2 via a bearing, and the lifting plate 8 is movably mounted on the outside of the lead screw 6.

[0048] In one embodiment of the present invention, a drive motor 3 is fixedly installed at the bottom of the water tank 2, a first pulley 4 is fixedly installed at the output shaft end of the drive motor 3, a shaft bracket 5 is fixedly installed on both sides of the top of the water tank 2, the two shaft brackets 5 at both ends and the bottom of the water tank 2 are movably installed with the lead screw 6 through bearings, the bottom ends of the two lead screws 6 are fixedly installed with the second pulley 7, the first pulley 4 is movably connected to the second pulley 7 at both ends through two belts, and a first assembly frame 9 is fixedly installed at the top of the lifting plate 8.

[0049] In one embodiment of the present invention, a top plate 11 is fixedly installed on the top of the two supports 10, and a first frame 12 is fixedly installed on both sides of the top plate 11. A first push rod motor 13 is fixedly installed on the top of the two first frames 12. The output shaft of the first push rod motor 13 passes through the support 10 and is fixedly connected to the support block 14. The experimental box 15 is snapped between the two support blocks 14. A slot 16 is opened on both sides of the top of the experimental box 15, and the slot 16 can be snapped with the support block 14.

[0050] In one embodiment of the present invention, a positioning sensor 44 is fixedly installed on the side of the support block 14 near the slot 16, and the positioning sensor 44 is connected to the controller 43.

[0051] In one embodiment of the present invention, a second assembly frame 17 is fixedly installed at the bottom of the experimental box 15, a partition 18 is horizontally installed inside the experimental box 15, the oil layer cavity 19 is disposed at the bottom of the experimental box 15 near the partition 18, and the water cavity 20 is disposed at the top of the experimental box 15 near the partition 18.

[0052] In one embodiment of the present invention, several air supply pipes 21 and oil outlet pipes 45 are respectively installed on both sides of the top of the experimental chamber 15. The bottom ends of the air supply pipes 21 and the bottom ends of the oil outlet pipes 45 pass through the partition 18 and connect to the oil layer cavity 19.

[0053] In one embodiment of the present invention, a housing 22 is fixedly installed on one side of the top of the top plate 11, and a compressor pump 23 is fixedly installed inside the housing 22. The two ends of the compressor pump 23 are respectively connected to the air inlet 24 and the diverter pipe 25. The top ends of the air supply pipe 21 and the oil outlet pipe 45 are both fixedly installed with a corrugated pipe 27 through a flange 28. The top ends of the corrugated pipe 27 are both fixedly installed with a connecting pipe 26. One side of the connecting pipe 26 is connected to the compressor pump 23 through the diverter pipe 25, and the top end of the other side of the connecting pipe 26 is provided with an oil outlet.

[0054] In one embodiment of the present invention, a second frame 34 is fixedly installed on the inner surface of the top of each of the two supports 10. The two second frames 34 are on the same horizontal line as the first frame 12. A guide groove 35 is opened on the upper surface of the top of the two second frames 34. A guide block 36 is fixedly connected to the lower surface of the bottom of the support block 14. The guide block 36 is slidably connected to the guide groove 35.

[0055] In one embodiment of the present invention, an electric valve 42 is provided in the middle of each of the flanges 28, and a controller 43 is installed on the outside of the top of the housing 22 and is connected to the electric valve 42.

[0056] In one embodiment of the present invention, the inner walls on both sides of the water tank 2 are provided with sliding grooves 37, and the outer sides of both ends of the lifting plate 8 are fixedly installed with sliders 38, which are slidably connected to the sliding grooves 37.

[0057] In one embodiment of the present invention, a liquid level sensor 39 is connected to one side of the bottom of the water tank 2, a water inlet pipe 40 is connected to the top of the side of the water tank 2 near the liquid level sensor 39, and a drain pipe 41 is connected to the bottom of the side of the water tank 2 away from the liquid level sensor 39.

[0058] In one embodiment of the present invention, the operation of the multi-stage streamline reservoir injection-production effect simulation device of the present invention specifically includes the following steps:

[0059] First, the drive device is activated to drive the lifting device to rise to the bottom of the experimental box 15, and the drive device controls the support block 14 to detach from the experimental box 15.

[0060] In the second step, the driving device controls the lifting device to descend and place the experimental chamber 15 into the water tank 2. At this time, the water inside the water tank 2 is poured into the water chamber 20 of the experimental chamber 15 from the inlet and outlet 31. Then, the compressor pump 23 is started. After the compressor pump 23 is started, the compressed air is injected into the oil layer chamber 19 of the experimental chamber 15 through the air inlet 24. In this way, the oil layer inside is compressed and pushed out from the oil discharge channel. During the air supply process, the air tightness of the pipeline can be detected simultaneously by observing whether bubbles are generated in the water chamber 20.

[0061] The third step is to start the heater 32 at the bottom of the experimental chamber 15 during the experiment. After the heater 32 is started, it controls the heating plate 33 inside the oil layer cavity 19 to heat up. After the heating plate 33 is heated, the oil inside the oil layer cavity 19 is heated and the temperature is increased. Then, the oil discharge state of the oil layer is observed as the temperature changes.

[0062] Fourth step: After the experiment is completed, start the drive device and control the lifting device to lift the experimental box 15. When it is lifted to the original preset position, the controller 43 controls the drive device to stop. At this time, the controller 43 controls the support block 14 to return to its original position so that the experimental box 15 is supported on the bracket 10.

[0063] Step 5: While raising the experimental chamber 15, simultaneously control the experimental chamber 15 to drain the water inside the water chamber 20, and the water falls back into the water tank 2 from the inlet and outlet 31.

[0064] Example 1

[0065] Please see Figures 1-6 This invention provides a multi-stage streamline reservoir injection and production effect simulation device, including a base 1, a water tank 2 fixedly installed in the middle of the base 1, a drive motor 3 fixedly installed at the bottom of the water tank 2, a first pulley 4 fixedly installed at the output shaft end of the drive motor 3, shaft brackets 5 fixedly installed on both sides of the top of the water tank 2, and lead screws 6 movably installed on both ends of the shaft brackets 5 and the bottom of the water tank 2 through bearings, and second pulleys 7 fixedly installed at the bottom of both lead screws 6, the first pulley 4 being movably connected to the second pulleys 7 at both ends through two belts, lifting plates 8 movably installed on the outside of the two lead screws 6, a first assembly frame 9 fixedly installed at the top of the lifting plate 8, and sliding grooves 37 being opened on both sides of the inner wall of the water tank 2, and sliders 38 being fixedly installed on both sides of the outer side of the lifting plate 8, the sliders 38 being slidably connected to the sliding grooves 37.

[0066] Before the experiment, the first pulley 4 is driven by the drive motor 3 to rotate. The first pulley 4 drives the second pulleys 7 at both ends to rotate synchronously through two belts. After the two second pulleys 7 rotate, the lifting plate 8 is raised to the top until the first assembly frame 9 at the top of the lifting plate 8 abuts against the bottom of the second assembly frame 17. To maintain stability, the two can also be fixed with bolts. Then the first push rod motor 13 is started. After the first push rod motor 13 is started, the support block 14 is retracted from the slot 16. During the experiment, the first assembly frame 9 abuts against the second assembly frame 17, which can lift the experimental box 15 into the water tank 2. After the experiment, the experimental box 15 can be controlled to rise. This makes it more convenient to test the airtightness of the pipeline, and there is no need to fill the pipeline with water for testing. The cleanliness of the pipeline before the experiment can be maintained, thereby improving the accuracy of the experimental data.

[0067] like Figure 3 As shown, brackets 10 are fixedly installed on both sides of the top of the base 1. Top plates 11 are fixedly installed on the top of the two brackets 10. First frames 12 are fixedly installed on the outer sides of both sides of the top plates 11. First push rod motors 13 are fixedly installed on the top of the two first frames 12. Support blocks 14 are fixedly installed through the output shafts of the two first push rod motors 13 through the brackets 10. Experiment boxes 15 are snapped between the two support blocks 14. Slots 16 are opened on both sides of the top of the two experiment boxes 15, and the slots 16 snap into the support blocks 14. Second frames 34 are fixedly installed on the inner surface of the top of the two brackets 10. The two second frames 34 are on the same horizontal line as the first frames 12. Guide grooves 3 are opened on the upper surface of the top of the two second frames 34. 5. A guide block 36 is fixedly connected to the lower surface of the bottom end of the support block 14. The guide block 36 is slidably connected to the guide groove 35. After the experiment, the drive motor 3 controls the experimental box 15 to rise. When it rises to the detection range of the positioning sensor 44, the controller 43 controls the drive motor 3 to stop. At this time, the controller 43 controls the first push rod motor 13 to start. After the first push rod motor 13 starts, it pushes the support block 14 into the slot 16 to support the experimental box 15. Normally, the experimental box 15 can be suspended on the top of the water tank 2 to avoid long-term immersion in water, which would cause water to enter the outer shell of the heater 32 at the bottom. At the same time, after the experimental box 15 is raised, it is convenient to clean the residue formed on its outer surface due to impurities in the water. This way, it will not affect the line of sight when observing from the outside.

[0068] like Figure 6As shown, a second assembly frame 17 is fixedly installed at the bottom of the experimental chamber 15. A partition 18 is fixedly installed in the middle of the inner side of the experimental chamber 15. An oil layer cavity 19 is provided at the bottom of the experimental chamber 15 near the partition 18. A water cavity 20 is provided at the top of the experimental chamber 15 near the partition 18. Several air supply pipes 21 and oil outlet pipes 45 are respectively installed on both sides of the top of the experimental chamber 15. The bottom ends of the air supply pipes 21 and oil outlet pipes 45 pass through the partition 18 and are located inside the oil layer cavity 19. A machine box 22 is fixedly installed on one side of the top of the top plate 11. A compressor pump 23 is fixedly installed inside the machine box 22. An air inlet 24 and a diverter pipe 25 are respectively connected to both ends of the compressor pump 23. The top ends of the air supply pipes 21 and oil outlet pipes 45 are fixedly installed with a wave plate 28. The corrugated pipe 27 has a connecting pipe 26 fixedly installed at the top of each end. The left connecting pipe 26 is connected to the compressor pump 23 through the diverter pipe 25, and the right connecting pipe 26 has an oil outlet at the top. A heater 32 is fixedly installed on the lower surface of the outer bottom of the experimental chamber 15, and a ceramic heating plate 33 is fixedly installed on the upper surface of the inner bottom of the experimental chamber 15. During the experiment, the heater 32 at the bottom of the experimental chamber 15 is started. After the heater 32 is started, it controls the ceramic heating plate 33 inside the oil layer cavity 19 to heat up. After the ceramic heating plate 33 is heated, the oil inside the oil layer cavity 19 is heated and the temperature is raised. Then, the oil discharge state of the oil layer is observed as the temperature changes. In this way, the changes in the oil layer under the influence of different factors can be observed and recorded by changing the experimental parameters.

[0069] like Figure 5 As shown, a second push rod motor 29 is fixedly installed on the outer side of the top center of the experimental box 15. The output shaft of the second push rod motor 29 passes through the experimental box 15 and a piston 30 is fixedly installed thereon. Both ends of the experimental box 15 near the partition 18 are connected to inlet and outlet ports 31. During the process of raising the experimental box 15, the second push rod motor 29 is started at the same time. After the second push rod motor 29 is started, it drives the piston 30 inside the water chamber 20 to descend. After the piston 30 descends, it discharges the water inside the water chamber 20. The water falls back into the water tank 2 from the inlet and outlet ports 31, thereby achieving the purpose of facilitating rapid drainage.

[0070] like Figure 1 As shown, a liquid level sensor 39 is connected to one side of the bottom of water tank 2. A water inlet pipe 40 is connected to the top of the side of water tank 2 closest to the liquid level sensor 39. A drain pipe 41 is connected to the bottom of the side of water tank 2 furthest from the liquid level sensor 39. When the water level in water tank 2 is insufficient, the liquid level sensor 39 will sense it and then water can be added through the water inlet pipe 40. When it is necessary to change the water, the water inside water tank 2 can be drained through the drain pipe 41 and then clean water can be added.

[0071] like Figure 6As shown, an electric valve 42 is installed in the middle of several flanges 28, and a controller 43 is fixedly installed on the top of the casing 22. The controller 43 is electrically connected to the electric valve 42. Figure 3 and 5 A positioning sensor 44 is fixedly installed on the side of the support block 14 near the slot 16. The positioning sensor 44 is electrically connected to the controller 43. The controller 43 is used to control the start and stop of the electric valve 42 and the positioning sensor 44.

[0072] In this embodiment, the operation of a multi-stage streamline reservoir injection-production effect simulation device specifically includes the following steps:

[0073] Step 1: First, start the drive motor 3. The drive motor 3 drives the first pulley 4 to rotate. The first pulley 4 drives the second pulleys 7 at both ends to rotate synchronously through two belts. After the two second pulleys 7 rotate, they drive the lifting plate 8 to rise to the top until the first assembly frame 9 at the top of the lifting plate 8 abuts against the bottom of the second assembly frame 17. To maintain stability, the two can also be fixed with bolts. Then start the first push rod motor 13. After the first push rod motor 13 starts, it retracts the support block 14 from the slot 16, so that the support block 14 is removed from the experimental box 15.

[0074] Step 2: After the experimental chamber 15 is lifted by the first assembly frame 9, the lifting plate 8 is lowered into the water tank 2 by the drive motor 3. At this time, the water inside the water tank 2 is poured into the water chamber 20 from the inlet and outlet 31. Then the compressor pump 23 is started. After the compressor pump 23 is started, the compressed air is injected into the oil layer chamber 19 through the air supply pipe 21. In this way, the oil layer inside is pressurized and pushed out from the oil outlet pipe 45. During the air supply process, the air tightness of the pipeline can be detected simultaneously by observing whether bubbles are generated in the water chamber 20.

[0075] Step 3: During the experiment, start the heater 32 at the bottom of the experimental chamber 15. After the heater 32 is started, it controls the ceramic heating plate 33 inside the oil layer cavity 19 to heat up. After the ceramic heating plate 33 is heated, the oil inside the oil layer cavity 19 is heated and the temperature is increased. Then observe the oil discharge state of the oil layer as the temperature changes.

[0076] Step 4: After the experiment is completed, start the drive motor 3. The drive motor 3 controls the experimental box 15 to rise. When it rises to the detection range of the positioning sensor 44, the controller 43 controls the drive motor 3 to stop. At this time, the controller 43 controls the first push rod motor 13 to start. After the first push rod motor 13 starts, it pushes the support block 14 into the slot 16 to support the experimental box 15.

[0077] Step 5: During the process of raising the experimental chamber 15, the second push rod motor 29 is started at the same time. After the second push rod motor 29 is started, it drives the piston 30 inside the water chamber 20 to descend. After the piston 30 descends, it discharges the water inside the water chamber 20. The water falls back into the water tank 2 from the inlet and outlet 31.

[0078] Working principle: First, start the drive motor 3. The drive motor 3 drives the first pulley 4 to rotate. The first pulley 4 drives the second pulleys 7 at both ends to rotate synchronously through two belts. After the two second pulleys 7 rotate, they drive the lifting plate 8 to rise to the top until the first assembly frame 9 at the top of the lifting plate 8 abuts against the bottom of the second assembly frame 17. To maintain stability, the two can also be fixed with bolts. Then, start the first push rod motor 13. After the first push rod motor 13 starts, it retracts the support block 14 from the slot 16. After the experimental box 15 is lifted by the first assembly frame 9, the drive motor 3 controls the lifting plate 8 to descend and enter the water tank 2. At this time, the water inside the water tank 2 is poured into the water chamber 20 from the inlet and outlet 31. Then, start the compressor pump 23. After the compressor pump 23 starts, it injects the compressed air into the oil layer chamber 19 through the air supply pipe 21. In this way, the oil layer inside is pressurized and pushed out from the oil outlet pipe 45. During the air supply process, observe whether bubbles are generated in the water chamber 20. The airtightness of the pipeline can be detected simultaneously during the experiment. During the experiment, the heater 32 at the bottom of the experimental chamber 15 is started. After the heater 32 is started, it controls the ceramic heating plate 33 inside the oil layer cavity 19 to heat up. After the ceramic heating plate 33 is heated, the oil inside the oil layer cavity 19 is heated and the oil discharge state of the oil layer is observed as the temperature changes. When the experiment is completed, the drive motor 3 is started. The drive motor 3 controls the experimental chamber 15 to be lifted. When it is lifted to the detection range of the positioning sensor 44, the controller 43 controls the drive motor 3 to stop. At this time, the controller 43 controls the first push rod motor 13 to start. After the first push rod motor 13 starts, it pushes the support block 14 into the slot 16 to support the experimental chamber 15. During the process of lifting the experimental chamber 15, the second push rod motor 29 is started at the same time. After the second push rod motor 29 starts, it drives the piston 30 inside the water cavity 20 to descend. After the piston 30 descends, it discharges the water inside the water cavity 20. The water falls back into the water tank 2 from the inlet and outlet 31.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A device for simulating the injection and production effect of a multi-stage streamlined reservoir, characterized in that, include: The system comprises a base, two brackets, a water tank, an experimental chamber, a drive unit, a lifting device, two support blocks, and a controller; the two brackets are fixedly installed on both sides of the base. The water tank is mounted on the base, and the experimental box is located above the water tank; the experimental box is movably connected to the two supports via two support blocks. The experimental chamber can be placed into the water tank and raised from the water tank via the lifting device; The experimental chamber has a water chamber and an oil layer chamber, with the water chamber located above the oil layer chamber; the water chamber is provided with an inlet and an outlet; the oil layer chamber is provided with an air inlet and connected to an oil drain channel, and the air inlet is connected to a compressor pump; The experimental chamber is equipped with a heater, and the oil layer cavity is equipped with a heating plate. The heater is connected to the heating plate. The controller is connected to the drive device; the drive device is connected to the support block and the lifting device respectively.

2. The multi-stage streamline reservoir injection-production effect simulation device according to claim 1, characterized in that, The driving device includes a first push rod motor and a drive motor, wherein the first push rod motor is connected to the support block; and the drive motor is connected to the lifting device.

3. The multi-stage streamline reservoir injection-production effect simulation device according to claim 2, characterized in that, The driving device also includes a second push rod motor, which is connected to the experimental chamber and controls the drainage of the water chamber.

4. The multi-stage streamline reservoir injection-production effect simulation device according to claim 3, characterized in that, A piston is installed inside the experimental chamber, and the second push rod motor is connected to the piston to control the movement of the piston and realize the drainage of the experimental chamber.

5. The multi-stage streamline reservoir injection-production effect simulation device according to claim 2, characterized in that, The lifting device includes a lifting plate and a lead screw. The lead screw is movably connected to the water tank via a bearing, and the lifting plate is movably mounted on the outside of the lead screw.

6. The multi-stage streamline reservoir injection-production effect simulation device according to claim 5, characterized in that, A drive motor is fixedly installed at the bottom of the water tank. A first pulley is fixedly installed at the output shaft end of the drive motor. Shaft brackets are fixedly installed on both sides of the top of the water tank. The lead screw is movably installed on the bottom of the water tank through bearings at both ends of the shaft brackets. A second pulley is fixedly installed at the bottom end of the two lead screws. The first pulley is movably connected to the second pulleys at both ends through two belts. A first assembly frame is fixedly installed at the top of the lifting plate.

7. The multi-stage streamline reservoir injection-production effect simulation device according to claim 6, characterized in that, A top plate is fixedly installed on the top of each of the two brackets. A first frame is fixedly installed on the outer sides of both top plates. A first push rod motor is fixedly installed on the top of each of the two first frames. The output shaft of the first push rod motor passes through the bracket and is fixedly connected to the support block. The experimental box is snapped between the two support blocks. A slot is opened on both sides of the top of the experimental box, and the slot can snap into the support block.

8. The multi-stage streamline reservoir injection-production effect simulation device according to claim 7, characterized in that, A positioning sensor is fixedly installed on the side of the support block near the slot, and the positioning sensor is connected to the controller.

9. The multi-stage streamline reservoir injection-production effect simulation device according to claim 7, characterized in that, The bottom of the experimental chamber is fixedly installed with a second assembly frame. A partition is horizontally installed inside the experimental chamber. The oil layer cavity is located at the bottom of the experimental chamber near the partition, and the water cavity is located at the top of the experimental chamber near the partition.

10. The multi-stage streamline reservoir injection-production effect simulation device according to claim 9, characterized in that, Several air supply pipes and oil outlet pipes are installed on both sides of the top of the experimental chamber. The bottom ends of the air supply pipes and the oil outlet pipes pass through the partition and connect to the oil layer cavity.

11. The multi-stage streamline reservoir injection-production effect simulation device according to claim 10, characterized in that, A housing is fixedly installed on one side of the top of the top plate. The compressor pump is fixedly installed inside the housing. The two ends of the compressor pump are respectively connected to the air inlet and the distributor pipe. The top ends of the air supply pipe and the oil outlet pipe are both fixedly installed with corrugated pipes through flanges. The top ends of the corrugated pipes are all fixedly installed with connecting pipes. One side of the connecting pipe is connected to the compressor pump through the distributor pipe, and the top end of the other side of the connecting pipe is provided with an oil outlet.

12. The multi-stage streamline reservoir injection-production effect simulation device according to claim 11, characterized in that, An electric valve is provided in the middle of several of the flanges, and the controller is installed on the outside of the top of the chassis and is connected to the electric valve.

13. The multi-stage streamline reservoir injection-production effect simulation device according to claim 9, characterized in that, A second frame is fixedly installed on the inner surface of the top of each of the two brackets. The two second frames are on the same horizontal line as the first frame. A guide groove is opened on the upper surface of the top of the two second frames. A guide block is fixedly connected to the lower surface of the bottom of the support block. The guide block is slidably connected to the guide groove.

14. The multi-stage streamline reservoir injection-production effect simulation device according to claim 5, characterized in that, The water tank has sliding grooves on both inner walls, and sliders are fixedly installed on both outer sides of the lifting plate, with the sliders slidably connected to the sliding grooves.

15. The multi-stage streamline reservoir injection-production effect simulation device according to claim 1, characterized in that, A liquid level sensor is connected to one side of the bottom of the water tank, a water inlet pipe is connected to the top of the side of the water tank closest to the liquid level sensor, and a drain pipe is connected to the bottom of the side of the water tank furthest from the liquid level sensor.

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