Experimental device for simulating steam flooding

Abstract

The utility model relates to the technical field of experimental apparatuses, in particular to an experimental device for simulating steam flooding. The experimental device for simulating steam flooding comprises a bottom plate, a box body is arranged at the top of the bottom plate, a storage tank is arranged on one side of the box body at the top of the bottom plate, an injection assembly is arranged on the other side of the box body at the top of the bottom plate, and an observation assembly is arranged above the box body. According to the experimental device for simulating steam oil displacement, through the arrangement of the transparent observation pipelines with different specifications in the observation assembly, in the using process, the transparent observation pipelines with different specifications can be flexibly replaced for oil displacement time, so that the comprehensiveness of experimental data can be assisted, and the use experience of the device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental instruments, in particular to an experimental device for simulating steam oil displacement. Background Art

[0002] At present, the main method for the extraction of heavy oil is to inject high-temperature steam into the formation oil reservoir to melt the heavy oil at high temperature, and then drive the heavy oil into the oil wellhead. In order to facilitate research, it is necessary to conduct simulation tests before extraction. In steam flooding experiments, a method often used is to fill the formation oil and sand in a sealed environment to simulate the real formation.

[0003] The existing Chinese patent announcement number is CN208152999U, which is an experimental device for simulating nitrogen-assisted steam flooding in heavy oil reservoirs. It can be seen from the contents recorded in its specification that the transparent round tube for oil liquid circulation in the device is directly set in the box body, and the transparent round tube of a single specification cannot be used to test the experimental results by changing the diameter of the pipe when in use, thereby reducing the data comprehensiveness of the experimental device to a certain extent.

[0004] Therefore, it is necessary to provide a new experimental device for simulating steam flooding to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an experimental device for simulating steam oil flooding.

[0006] The experimental device for simulating steam flooding provided by the utility model comprises: a bottom plate, a box body is arranged on the top of the bottom plate, a storage tank is arranged on one side of the box body on the top of the bottom plate, an injection assembly is arranged on the other side of the box body on the top of the bottom plate, and an observation assembly is arranged above the box body;

[0007] The observation assembly includes a support plate, the support plate is arranged on the top of the box body, a fixedly connected support rod and a drive motor are provided on the top of the support plate, a drive rod is provided at the output end of the drive motor, a movably connected support plate is arranged between the drive rod and the support rod, the inside of the support plate is slidably connected to the support rod, and the inside of the support plate is threadedly connected to the drive rod;

[0008] A rotating motor is provided above the supporting plate, a supporting plate is provided at the output end of the rotating motor, a plurality of transparent observation tubes are provided inside the supporting plate, the diameter specifications of the inside of each transparent observation tube are different, and a docking joint of the same specification is provided at the bottom end of each transparent observation tube;

[0009] The inner top of the box body is provided with a communicating butt joint pipe, the interior of the box body is provided with a rock block, and the inner wall of the butt joint pipe abuts against the bottom end of each butt joint.

[0010] Preferably, a plurality of evenly distributed installation grooves are provided inside the support plate, slots are provided on both side walls of the installation grooves, limiting holes are provided inside the slots, a movably connected installation frame is provided inside the installation groove, and the inner wall of the installation frame is fixedly connected to the outer wall of the docking joint.

[0011] Preferably, fixedly connected sliders are provided on both side walls of the installation frame, the outer walls of the sliders are abutted against and slidably connected to the inner walls of the slots, and slidably connected limit rods are inserted into the interior of the installation frame and opposite to the sliders, the ends of the limit rods are inserted into the corresponding limit holes, and a limit spring is provided between the limit rods and the installation frame.

[0012] Preferably, a delivery pump is provided on one side of the top of the bottom plate close to the storage tank, the input end of the delivery pump is communicated with the interior of the storage tank, and the output end of the delivery pump is communicated with the interior of the box body.

[0013] Preferably, the injection assembly comprises a steam generator, a connected fan is provided outside the steam generator, a connected injection pipe is provided at the output end of the fan, and the injection pipe is connected to the interior of the box at one end away from the fan.

[0014] Preferably, a flow meter is provided on the injection pipe, and a connecting transfer valve is provided on the injection pipe, and valves are provided on both the injection pipe and the transfer pipe.

[0015] Preferably, a collecting cylinder is provided on one side of the observation assembly above the top box of the bottom plate, a supporting frame is provided on the bottom plate, and a control box and a high-speed camera are provided on the supporting frame.

[0016] Compared with the related art, the experimental device for simulating steam flooding provided by the utility model has the following beneficial effects:

[0017] 1. The utility model provides a plurality of transparent observation pipes of different specifications in the observation assembly. During use, transparent observation pipes of different specifications can be flexibly replaced to perform oil displacement time, thereby assisting the comprehensiveness of experimental data and thus improving the user experience of the device.

[0018] 2. The utility model adopts a snap-on method to install the transparent observation tube. After the oil displacement experiment is completed, it is more convenient for the staff to disassemble and clean the transparent observation tube. At the same time, it is convenient to prevent the transparent observation tube from being affected by the residual oil stains from the previous experiment on the next experimental observation during the later experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of a preferred embodiment of an experimental device for simulating steam flooding is provided for the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the observation component shown;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of the support plate and its components in the observation assembly shown;

[0022] Figure 4 for Figure 2 A schematic diagram of the structure of a transparent observation tube and its components in the observation assembly shown;

[0023] Figure 5 for Figure 1 A schematic diagram of the partial cross-sectional structure of the base plate and its components shown.

[0024] Numbers in the figure: 1. bottom plate; 11. box body; 111. docking tube; 12. rock block; 13. support frame; 14. high-speed camera; 15. control box; 2. storage tank; 21. delivery pump; 3. injection assembly; 31. steam generator; 32. fan; 33. injection pipe; 331. flow meter; 34. transfer tube; 4. collecting tube; 5. observation assembly; 51. support plate; 511. support rod; 512. drive motor; 513. drive rod; 514. support plate; 515. rotating motor; 52. support plate; 521. mounting groove; 522. slot; 523. limit hole; 53. transparent observation tube; 531. docking joint; 54. mounting frame; 541. slider; 542. limit rod; 543. limit spring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0027] See also Figures 1 to 5 The embodiment of the utility model provides an experimental device for simulating steam oil recovery. The experimental device for simulating steam oil recovery includes: a bottom plate 1.

[0028] In the embodiments of the present invention, please refer to Figures 1 to 5A box body 11 is provided on the top of the bottom plate 1, a storage tank 2 is provided on one side of the box body 11 on the top of the bottom plate 1, an injection assembly 3 is provided on the other side of the box body 11 on the top of the bottom plate 1, and an observation assembly 5 is provided above the box body 11; the observation assembly 5 includes a support plate 51, the support plate 51 is arranged on the top of the box body 11, a fixedly connected support rod 511 and a drive motor 512 are provided on the top of the support plate 51, a drive rod 513 is provided at the output end of the drive motor 512, a movably connected supporting plate 514 is provided between the drive rod 513 and the support rod 511, the interior of the supporting plate 514 is slidably connected to the support rod 511, and the interior of the supporting plate 514 is threadedly connected to the drive rod 513; the supporting plate 514 is provided with a plurality of supporting plates, and the supporting plates are connected to the plurality of supporting plates. A rotating motor 515 is provided above the support plate 514, and a support plate 52 is provided at the output end of the rotating motor 515. A plurality of transparent observation tubes 53 are provided inside the support plate 52. The diameter specifications inside each transparent observation tube 53 are different, and a docking joint 531 of the same specification is provided at the bottom end of each transparent observation tube 53; a connected docking tube 111 is provided at the inner top of the box body 11, a rock block 12 is provided inside the box body 11, and the inner wall of the docking tube 111 is abutted against the bottom end of each docking joint 531, a collecting tube 4 is provided on one side of the observation assembly 5 above the box body 11 at the top of the bottom plate 1, a support frame 13 is provided on the bottom plate 1, and a control box 15 and a high-speed camera 14 are provided on the support frame 13.

[0029] It should be noted that when using the present device, the driving motor 512 can be controlled to work first, and the working driving motor 512 will drive the driving rod 513 to rotate, and the rotating driving rod 513 will drive the supporting plate 514 and the components on its top to move in the vertical direction through the threaded structure, so that the docking joint 531 at the bottom end of the transparent observation tube 53 can be moved to the top of the docking tube 111 at the top end of the box body 11, and then the rotating motor 515 can be controlled to work, and the working rotating motor 515 will drive the internal transparent observation tube 514 through the supporting plate 52. The tube 53 rotates, and when the transparent observation tube 53 of the required specifications moves to the top of the docking tube 111, the drive motor 512 can be reversely controlled to rotate, so that it drives the top component to move downward. At this time, the docking head 531 located at the bottom of the transparent observation tube 53 above the docking tube 111 will be smoothly inserted into the docking tube 111 and connected with the docking tube 111. By adjusting the rotation of the transparent observation tube 53, the device can conduct multiple groups of experiments of different specifications during the experiment, thereby improving the comprehensiveness of the later experimental data of the device.

[0030] In the embodiments of the present invention, please refer to Figures 1 to 5A plurality of evenly distributed mounting grooves 521 are provided inside the support plate 52, slots 522 are provided on both side walls of the mounting groove 521, and limiting holes 523 are provided inside the slots 522. A movable mounting frame 54 is provided inside the mounting groove 521, and the inner wall of the mounting frame 54 is fixedly connected to the outer wall of the docking joint 531, and fixedly connected sliders 541 are provided on both side walls of the mounting frame 54, and the outer wall of the slider 541 abuts against and is slidably connected to the inner wall of the slot 522, and a slidably connected limiting rod 542 is inserted into the corresponding position of the slider 541 inside the mounting frame 54, and the end of the limiting rod 542 is inserted into the corresponding limiting hole 523, and a limiting spring 543 is arranged between the limiting rod 542 and the mounting frame 54.

[0031] It should be noted that: through the abutment between the slider 541 and the slot 522, when in use, by controlling the slider 541 to slide inside the slot 522, the transparent observation tube 53 can be stably driven to move inside the installation slot 521, so that the later installation and disassembly of the transparent observation tube 53 can be more convenient. Through the setting of the limit spring 543, after the limit rod 542 is moved to the position corresponding to the limit hole 523, the limit spring 543 will drive the limit rod 542 to move toward the corresponding limit hole 523 through its own force, so that the limit rod 542 is inserted into the limit hole 523 to achieve the limitation of the installation frame 54, so that the installation of the transparent observation tube 53 can be more stable during the later use.

[0032] In the embodiments of the present invention, please refer to Figures 1 to 5 A delivery pump 21 is provided on one side of the top of the bottom plate 1 close to the storage tank 2, the input end of the delivery pump 21 is connected to the interior of the storage tank 2, and the output end of the delivery pump 21 is connected to the interior of the box body 11. The injection assembly 3 includes a steam generator 31, a connected fan 32 is provided outside the steam generator 31, a connected injection pipe 33 is provided at the output end of the fan 32, and the end of the injection pipe 33 away from the fan 32 is connected to the interior of the box body 11, a flow meter 331 is provided on the injection pipe 33, and a connected transfer valve is provided on the injection pipe 33, and valves are provided on both the injection pipe 33 and the transfer pipe 34.

[0033] It should be noted that: through the setting of the flow meter 331, during the experimental test, the wind speed of the fan 32 can be detected in real time by the flow meter 331, so that the variable can be flexibly controlled as needed, and through the setting of the transfer tube 34, during the steam injection drive process, the transfer tube 34 can be connected to the external nitrogen source as needed to perform nitrogen auxiliary injection experiments.

[0034] The working principle of the experimental device for simulating steam flooding provided by the utility model is as follows;

[0035] During use, the staff can first add the required oil into the storage tank 2, and then control the driving motor 512 through the controller to drive the driving rod 513 to rotate. The rotating driving rod 513 will drive the supporting plate 514 and the components on its top to move vertically through the threaded structure, so that the docking joint 531 at the bottom end of the transparent observation tube 53 can be moved to the top of the docking tube 111 at the top end of the box body 11;

[0036] Then the rotating motor 515 can be controlled to work, and the working rotating motor 515 will drive the internal transparent observation tube 53 to rotate through the supporting plate 52. When the transparent observation tube 53 of the required specifications moves to the top of the docking tube 111, the driving motor 512 can be reversely controlled to rotate, so that it drives the top component to move downward. At this time, the docking head 531 at the bottom of the transparent observation tube 53 above the docking tube 111 will be smoothly inserted into the docking tube 111 and connected with the docking tube 111;

[0037] Then the delivery pump 21 can be controlled to work, and the oil in the storage tank 2 can be delivered to the inside of the box body 11. When the oil flows into the transparent observation tube 53 through the internal rock block 12, the delivery amount of the delivery pump 21 is reduced, and the valve and the fan 32 on the injection pipe 33 are opened to inject the steam generated by the steam generator 31 into the inside of the box body 11. When the steam flows into the inside of the box body 11, the oil in the box body 11 can be driven. During this process, the high-speed camera 14 on the outside can shoot and detect the movement state of the oil, and the oil at the driving place will fall into the external collection tube 4. After completing the data monitoring of the oil flow in an observation tube of one specification, the driving motor 512 and the rotating motor 515 can be repeatedly controlled to work, so that observation tubes of different specifications can be connected to the docking tube 111 in turn to carry out test experiments;

[0038] After completing the use of the device, after lifting the transparent observation tube 53 upward to separate it from the docking tube 111, the staff can hold the two limit rods 542 on the outside of the same transparent observation tube 53, so that the limit rods 542 can slide out from the inside of the limit hole 523, releasing the limit on the installation frame 54, and at the same time pulling the installation frame 54 outward to complete the disassembly of the transparent observation tube 53, which can facilitate the staff to clean the transparent observation tube 53 after use.

[0039] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0040] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An experimental device for simulating steam flooding, characterized in that: include: A bottom plate (1), a box body (11) is provided on the top of the bottom plate (1), a storage tank (2) is provided on one side of the box body (11) on the top of the bottom plate (1), an injection assembly (3) is provided on the other side of the box body (11) on the top of the bottom plate (1), and an observation assembly (5) is provided above the box body (11); The observation assembly (5) comprises a support plate (51), the support plate (51) being arranged on the top of the box body (11), the top of the support plate (51) being provided with a fixedly connected support rod (511) and a drive motor (512), the output end of the drive motor (512) being provided with a drive rod (513), a movably connected support plate (514) being arranged between the drive rod (513) and the support rod (511), the interior of the support plate (514) being slidably connected to the support rod (511), and the interior of the support plate (514) being threadedly connected to the drive rod (513); A rotating motor (515) is provided above the supporting plate (514); a supporting plate (52) is provided at the output end of the rotating motor (515); a plurality of transparent observation tubes (53) are provided inside the supporting plate (52); the diameter of each transparent observation tube (53) is different, and a docking joint (531) of the same specification is provided at the bottom end of each transparent observation tube (53); A communicating butt joint pipe (111) is provided at the inner top of the box body (11), a rock block (12) is provided inside the box body (11), and an inner wall of the butt joint pipe (111) abuts against the bottom end of each butt joint (531).

2. The experimental device for simulating steam flooding according to claim 1, characterized in that: A plurality of evenly distributed mounting grooves (521) are provided inside the support plate (52), slots (522) are provided on both side walls of the mounting groove (521), limiting holes (523) are provided inside the slots (522), a movably connected mounting frame (54) is provided inside the mounting groove (521), and the inner wall of the mounting frame (54) is fixedly connected to the outer wall of the docking joint (531).

3. The experimental device for simulating steam flooding according to claim 2, characterized in that: Both side walls of the installation frame (54) are provided with fixedly connected sliders (541); the outer wall of the slider (541) abuts against and is slidably connected to the inner wall of the slot (522); a slidably connected limit rod (542) is inserted into a portion of the installation frame (54) opposite to the slider (541); an end of the limit rod (542) is inserted into a corresponding limit hole (523); and a limit spring (543) is arranged between the limit rod (542) and the installation frame (54).

4. The experimental device for simulating steam flooding according to claim 3, characterized in that: A delivery pump (21) is provided on one side of the top of the bottom plate (1) close to the storage tank (2); an input end of the delivery pump (21) is in communication with the interior of the storage tank (2), and an output end of the delivery pump (21) is in communication with the interior of the box body (11).

5. The experimental device for simulating steam flooding according to claim 1, characterized in that: The injection assembly (3) comprises a steam generator (31), a fan (32) is provided outside the steam generator (31) and is in communication with the steam generator (31), an injection pipe (33) is provided at the output end of the fan (32), and an end of the injection pipe (33) away from the fan (32) is in communication with the interior of the box (11).

6. The experimental device for simulating steam flooding according to claim 5, characterized in that: The injection pipe (33) is provided with a flow meter (331), and the injection pipe (33) is provided with a communicating transfer valve, and both the injection pipe (33) and the transfer pipe (34) are provided with valves.

7. The experimental device for simulating steam flooding according to claim 1, characterized in that: A collecting cylinder (4) is provided on one side of the observation assembly (5) above the top box (11) of the bottom plate (1), a supporting frame (13) is provided on the bottom plate (1), and a control box (15) and a high-speed camera (14) are provided on the supporting frame (13).

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