Device and method for simulating sand body deposition of huge thick delta of large lake basin

Abstract

The invention relates to the field of deposition simulation, and discloses a large lake basin huge thick delta sand body deposition simulation device and method, and the large lake basin huge thick delta sand body deposition simulation device comprises a large lake basin huge thick delta sand body deposition simulation box, the bottom of the large lake basin huge thick delta sand body deposition simulation box is fixedly connected with a water storage tank and an outer shell, the outer shell is fixedly connected with the water storage tank, and the large lake basin huge thick delta sand body deposition simulation box, the water storage tank and the outer shell are provided with a simulation switching mechanism, an auxiliary mechanism and a slicing mechanism. The simulation switching mechanism and the auxiliary mechanism are used in cooperation. The device has the following advantages and effects that the deposition simulation of the large-scale huge thick delta sand body is facilitated, the influence of different gradients and different sea wave actions on the deposition formation of the large-scale lake basin huge thick delta sand body can be simulated, and slice observation can be performed after the experiment is finished.

Description

Technical Field

[0001] The present invention relates to the technical field of sedimentation simulation, and particularly relates to a sedimentation simulation device and method for a huge delta sand body in a large lake basin. Background Art

[0002] With the development and progress of exploration and development technologies, the focus of oil and gas reservoir development at home and abroad has gradually shifted to unconventional oil and gas, deeper layers, and more refined development. A series of large oil and gas fields put into production and developed in the early stage have entered the middle and late stages of development. Continuing to tap the potential of oil and gas exploration and development is the top priority of oil and gas reservoir research. Therefore, the fine characterization and research of oil and gas reservoir reservoirs have become increasingly important.

[0003] For sandstone-type reservoir oil and gas reservoirs, sandstone rock formations, as the main reservoir rock formations, are crucial for the exploration and development of oil and gas reservoirs. Sedimentary facies refer to different sedimentary environments and sedimentary products, and different sedimentary substances will develop in different sedimentary facies. Delta sedimentary bodies are excellent oil and gas reservoirs. The braided river delta front sand bodies have good sorting, developed pores, and large sand body scales, and are high-quality oil and gas reservoirs. Reservoir sand bodies are controlled by sedimentary microfacies, and there are large variations in the scale and occurrence of sand bodies. At the same time, oil and gas often accumulate in sand bodies, and the physical properties between different sand body configurations are different, which can control the oil and gas enriched inside the reservoir. Therefore, for sandstone-type reservoirs, sand body configuration is often the primary target for the fine characterization of oil and gas reservoirs.

[0004] In the prior art, the sedimentation simulation device for a huge delta sand body in a large lake basin cannot simulate the sedimentation of a huge delta sand body in a large lake basin under different slopes and wave actions, which will affect the sedimentation simulation effect of a huge delta sand body in a large lake basin. In addition, the authenticity of the simulation needs to be improved. Therefore, it is necessary to design a sedimentation simulation device and method for a huge delta sand body in a large lake basin to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a sedimentation simulation device and method for a huge delta sand body in a large lake basin to solve the above problems.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: A sedimentation simulation device for a huge delta sand body in a large lake basin, comprising:

[0007] A sedimentation simulation box for a huge delta sand body in a large lake basin, the bottom of the sedimentation simulation box for a huge delta sand body in a large lake basin is fixedly connected with a water storage tank and an outer shell, the outer shell is fixedly connected with the water storage tank, and a simulation switching mechanism, an auxiliary mechanism, and a slicing mechanism are arranged on the sedimentation simulation box for a huge delta sand body in a large lake basin, the water storage tank, and the outer shell, and the simulation switching mechanism and the auxiliary mechanism are used in cooperation.

[0008] A further setting of the present invention is that the analog switching mechanism includes an assembly plate, a simulation slope plate for thick delta sand body deposition in a large lake basin, a sealing plate, a mounting frame, an expansion airbag, a connecting pipe, an electric telescopic rod, a connecting frame, a rod body, a piston, an infusion pump and a positioning block. The top of the assembly plate is fixedly connected to the simulation slope plate for thick delta sand body deposition in a large lake basin, the bottom of the assembly plate is fixedly connected to the sealing plate, a sealing hole is formed on the inner wall of the bottom of the simulation box for thick delta sand body deposition in a large lake basin, and the sealing plate is clamped with the sealing hole. The mounting frame is fixedly connected to the expansion airbag, the mounting frame is fixedly installed on the inner wall of the water storage tank, the connecting pipe is fixedly connected to the expansion airbag, the connecting pipe is fixedly installed on the water storage tank, both the electric telescopic rod and the infusion pump are fixed on the water storage tank, the telescopic arm of the electric telescopic rod is fixedly connected to the connecting frame, the connecting frame is fixedly connected to the rod body and the positioning block, the rod body is fixedly connected to the piston, the piston is slidably and sealingly installed in the connecting pipe, a positioning hole is formed on one side of the sealing plate, and the positioning block is clamped with the positioning hole.

[0009] A further setting of the present invention is that the auxiliary mechanism includes a rotating shaft, a tensioned mesh cloth, steel balls, side rods, a moving plate, a strong electromagnet, a vertical rod, a touch rod, an opening panel and a closing panel. The rotating shaft is rotatably installed on the outer shell, a rectangular frame is fixedly connected to the end of the rotating shaft, the tensioned mesh cloth is fixedly installed on the rectangular frame, the steel balls are located inside the rectangular frame, the side rods are fixedly connected to the rectangular frame, a moving groove is formed on the inner wall of one side of the outer shell, the moving plate is slidably installed in the moving groove, a groove body is formed on one side of the moving plate, the side rods are located in the groove body, the strong electromagnet is fixedly installed in the moving groove, the top of the vertical rod is fixedly connected to the rod body, the bottom of the vertical rod is fixedly connected to the touch rod, and the closing panel is fixedly installed on the water storage tank.

[0010] By adopting the above technical solution, it is convenient to emit the sound of ocean waves and the experience is strong.

[0011] A further setting of the present invention is that the moving plate is made of iron, a side hole is formed on one side of the connecting frame, and the rectangular frame passes through the side hole.

[0012] A further setting of the present invention is that both the opening panel and the closing panel are electrically connected to the strong electromagnet. A traction frame is fixedly connected to the bottom of the opening panel, a fixing screw is threadedly connected to the traction frame, the traction frame is slidably installed on the outer shell, the fixing screw is threadedly connected to the outer shell, and an outer hole is formed on the rear side of the outer shell.

[0013] By adopting the above technical solution, it is convenient to move the opening panel downward, so as to facilitate the subsequent replacement process of the simulation slope plate for thick delta sand body deposition in a large lake basin.

[0014] A further setting of the present invention is that: the slicing mechanism includes a top cover, a clamping frame, a hydraulic cylinder, a push plate and a slicing knife. The bottom of the top cover is in contact with the large lake basin thick delta sand body deposition simulation box. The top cover is fixedly connected to the clamping frame, and the clamping frame is clamped with the large lake basin thick delta sand body deposition simulation box. The hydraulic cylinder is fixedly installed on the top of the top cover, the hydraulic rod of the hydraulic cylinder is fixedly connected to the push plate, and the bottom of the push plate is fixedly connected to the slicing knife.

[0015] By adopting the above technical solution, starting the hydraulic cylinder can cause the push plate to drive the slicing knife to move downward, and the slicing knife slices the thick sand body.

[0016] A further setting of the present invention is that: through holes are opened at the bottom of the large lake basin thick delta sand body deposition simulation box, and transparent observation plates are fixedly arranged around the large lake basin thick delta sand body deposition simulation box.

[0017] A method for a large lake basin thick delta sand body deposition simulation device according to any one of the above, comprising the following steps:

[0018] S1: Select a large lake basin thick delta sand body deposition simulation slope plate with an appropriate slope, snap the sealing plate on the bottom assembly plate of the large lake basin thick delta sand body deposition simulation slope plate into the sealing hole, then start the electric telescopic rod to make the positioning block snap into the positioning hole to limit the large lake basin thick delta sand body deposition simulation slope plate. Then move the traction frame upward and fix the traction frame with fixing screws. By starting the infusion pump, the water level in the water storage tank rises, which can simulate the rising tide. Then, in cooperation with the large lake basin thick delta sand body deposition simulation slope plate, the automatic deposition of the large lake basin thick delta sand body is realized;

[0019] S2: Start the electric telescopic rod to make the connecting frame move horizontally back and forth. When the connecting frame moves to the right, the piston can move to the right to inflate the expansion airbag. When the piston moves to the left, the expansion airbag is exhausted. During the inflation and exhaust processes of the expansion airbag, waves can be formed in the water storage tank, and the waves repeatedly impact the large lake basin thick delta sand body deposition simulation slope plate, which is beneficial to the deposition formation of the large lake basin thick delta sand body;

[0020] S3: When the touch rod touches the opening panel, the strong electromagnet is started at this time to adsorb the moving plate. The moving plate moves upward to drive the side rod upward through the groove body. The side rod will drive the rectangular frame to flip, so that the steel balls in the rectangular frame roll towards the inclined side. The steel balls collide with each other, and the steel balls rub against the tightened mesh cloth to make the sound of waves. When the touch rod touches the closing panel, the strong electromagnet is closed at this time, and the moving plate moves downward due to its own gravity. The moving plate will drive the side rod downward at this time, so that the rectangular frame flips again, and the sound of waves is emitted again, with a strong authenticity;

[0021] S4: By controlling the speed of the electric telescopic rod to drive the connecting frame, the influence of different wave actions on the deposition formation of the extremely thick delta sand body in the large lake basin can be simulated. By lowering the traction frame and then starting the electric telescopic rod, the positioning block is moved out of the positioning hole. At this time, the deposition simulation slope plate of the extremely thick delta sand body in the large lake basin can be removed and replaced with a deposition simulation slope plate of the extremely thick delta sand body in the large lake basin with a different slope, so as to simulate the influence of different slopes on the deposition formation of the extremely thick delta sand body in the large lake basin;

[0022] S5: After the simulation is completed, an extremely thick sand body is obtained. Starting the hydraulic cylinder can make the push plate drive the slicing knife to move down, and the slicing knife slices the extremely thick sand body. After the experiment, slicing observation can be carried out.

[0023] The beneficial effects of the present invention are:

[0024] 1. Through the provided simulation switching mechanism of the present invention, by controlling the speed of the electric telescopic rod to drive the connecting frame, the influence of different wave actions on the deposition formation of the extremely thick delta sand body in the large lake basin can be simulated. By lowering the traction frame and then starting the electric telescopic rod, the positioning block is moved out of the positioning hole. At this time, the deposition simulation slope plate of the extremely thick delta sand body in the large lake basin can be removed and replaced with a deposition simulation slope plate of the extremely thick delta sand body in the large lake basin with a different slope, so as to simulate the influence of different slopes on the deposition formation of the extremely thick delta sand body in the large lake basin;

[0025] 2. Through the provided auxiliary mechanism of the present invention, when the touch rod touches the opening panel, the powerful electromagnet is started at this time, and the side rod will drive the rectangular frame to flip, so that the steel balls in the rectangular frame roll towards the inclined side. The steel balls collide with each other, and the steel balls rub against the tightened mesh cloth, making the sound of the waves. When the touch rod touches the closing panel, the powerful electromagnet is closed at this time, and the moving plate moves down due to its own gravity. The moving plate will drive the side rod to move down at this time, so that the rectangular frame flips again, and the sound of the waves is emitted again, with strong authenticity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size.

[0027] Figure 1 and Figure 2It is a three-dimensional structure schematic diagram of a large lake basin thick delta sand body deposition simulation device proposed by the present invention.

[0028] Figure 3 It is a sectional structure schematic diagram of a large lake basin thick delta sand body deposition simulation device proposed by the present invention.

[0029] Figure 4 It is Figure 3 a schematic diagram of part A structure in

[0030] Figure 5 It is Figure 3 a schematic diagram of part B structure in

[0031] Figure 6 It is Figure 3 a schematic diagram of part C structure in

[0032] In the figure, 1. Large lake basin thick delta sand body deposition simulation box; 2. Water storage tank; 3. Outer shell; 4. Assembly plate; 5. Large lake basin thick delta sand body deposition simulation slope plate; 6. Sealing plate; 7. Sealing hole; 8. Mounting frame; 9. Expansion airbag; 10. Connecting pipe; 11. Electric telescopic rod; 12. Connecting frame; 13. Rod body; 14. Piston; 15. Infusion pump; 16. Positioning block; 17. Positioning hole; 18. Rotating shaft; 19. Tightening mesh; 20. Steel ball; 21. Side rod; 22. Moving groove; 23. Moving plate; 24. Groove body; 25. Strong electromagnet; 26. Vertical rod; 27. Touching rod; 28. Opening panel; 29. Closing panel; 30. Traction frame; 31. Through hole; 32. Top cover; 33. Card frame; 34. Hydraulic cylinder; 35. Pushing plate; 36. Slicing knife; 37. Transparent observation plate. Specific embodiments

[0033] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0036] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0038] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , the present invention provides a large lake basin thick delta sand body deposition simulation device, comprising:

[0039] Large-scale lake basin thick delta sand body deposition simulation box 1, a water storage tank 2 and an outer shell 3 are fixedly connected to the bottom of the large-scale lake basin thick delta sand body deposition simulation box 1, the outer shell 3 is fixedly connected to the water storage tank 2, and a simulation switching mechanism, an auxiliary mechanism and a slicing mechanism are arranged on the large-scale lake basin thick delta sand body deposition simulation box 1, the water storage tank 2 and the outer shell 3, and the simulation switching mechanism and the auxiliary mechanism are used in cooperation.

[0040] Specifically, the simulation switching mechanism includes an assembly plate 4, a large-scale lake basin thick delta sand body deposition simulation slope plate 5, a sealing plate 6, a mounting frame 8, an expansion airbag 9, a connecting pipe 10, an electric telescopic rod 11, a connecting frame 12, a rod body 13, a piston 14, an infusion pump 15 and a positioning block 16. The top of the assembly plate 4 is fixedly connected to the large-scale lake basin thick delta sand body deposition simulation slope plate 5, the bottom of the assembly plate 4 is fixedly connected to the sealing plate 6, a sealing hole 7 is opened on the inner wall of the bottom of the large-scale lake basin thick delta sand body deposition simulation box 1, and the sealing plate 6 is clamped with the sealing hole 7. The mounting frame 8 is fixedly connected to the expansion airbag 9, and the mounting frame 8 is fixedly installed on the inner wall of the water storage tank 2. The connecting pipe 10 is fixedly connected to the expansion airbag 9, and the connecting pipe 10 is fixedly installed on the water storage tank 2. The electric telescopic rod 11 and the infusion pump 15 are both fixed on the water storage tank 2. The telescopic arm of the electric telescopic rod 11 is fixedly connected to the connecting frame 12, and the connecting frame 12 is fixedly connected to the rod body 13 and the positioning block 16. The rod body 13 is fixedly connected to the piston 14, and the piston 14 is slidably and sealingly installed in the connecting pipe 10. A positioning hole 17 is opened on one side of the sealing plate 6, and the positioning block 16 is clamped with the positioning hole 17.

[0041] Through the above structure, by controlling the speed of the electric telescopic rod 11 driving the connecting frame 12, the influence of different wave actions on the deposition formation of the large-scale lake basin thick delta sand body can be simulated. By lowering the traction frame 30 and then starting the electric telescopic rod 11, the positioning block 16 is moved out of the positioning hole 17. At this time, the large-scale lake basin thick delta sand body deposition simulation slope plate 5 can be removed and replaced with a large-scale lake basin thick delta sand body deposition simulation slope plate 5 with a different slope, so as to simulate the influence of different slopes on the deposition formation of the large-scale lake basin thick delta sand body.

[0042] Specifically, the auxiliary mechanism includes a rotating shaft 18, a tensioned mesh 19, steel balls 20, side rods 21, a moving plate 23, a powerful electromagnet 25, a vertical rod 26, a touch rod 27, an opening panel 28, and a closing panel 29. The rotating shaft 18 is rotatably installed on the outer housing 3. A rectangular frame is fixedly connected to the end of the rotating shaft 18. The tensioned mesh 19 is fixedly installed on the rectangular frame. The steel balls 20 are located inside the rectangular frame. The side rod 21 is fixedly connected to the rectangular frame. A moving groove 22 is formed on one inner wall of the outer housing 3. The moving plate 23 is slidably installed in the moving groove 22. A groove 24 is formed on one side of the moving plate 23. The side rod 21 is located in the groove 24. The powerful electromagnet 25 is fixedly installed in the moving groove 22. The top end of the vertical rod 26 is fixedly connected to the rod body 13, and the bottom end of the vertical rod 26 is fixedly connected to the touch rod 27. The closing panel 29 is fixedly installed on the water storage tank 2.

[0043] With the above structure, when the touch rod 27 touches the opening panel 28, the powerful electromagnet 25 is activated at this time to adsorb the moving plate 23. The moving plate 23 moves upward and drives the side rod 21 to move upward through the groove 24. The side rod 21 will drive the rectangular frame to flip, causing the steel balls 20 in the rectangular frame to roll towards the inclined side. The steel balls 20 collide with each other, and the steel balls 20 rub against the tensioned mesh 19, producing the sound of ocean waves. When the touch rod 27 touches the closing panel 29, the powerful electromagnet 25 is turned off at this time. The moving plate 23 moves downward due to its own gravity. The moving plate 23 will drive the side rod 21 to move downward at this time, causing the rectangular frame to flip again, and thus producing the sound of ocean waves again, with relatively strong authenticity.

[0044] Specifically, the moving plate 23 is made of iron. A side hole is formed on one side of the connecting frame 12. The rectangular frame passes through the side hole. It should be noted that this does not affect the rotation of the rectangular frame.

[0045] Specifically, both the opening panel 28 and the closing panel 29 are electrically connected to the powerful electromagnet 25. A traction frame 30 is fixedly connected to the bottom of the opening panel 28. A fixing screw is threadedly connected to the traction frame 30. The traction frame 30 is slidably installed on the outer housing 3. The fixing screw is threadedly connected to the outer housing 3. An outer hole is formed at the rear of the outer housing 3. It should be noted that this facilitates the adjustment of the position of the opening panel 28, and thus facilitates the replacement of the large lake basin thick delta sand body deposition simulation slope plate 5.

[0046] Specifically, the slicing mechanism includes a top cover 32, a clamping frame 33, a hydraulic cylinder 34, a pushing plate 35, and a slicing knife 36. The bottom of the top cover 32 is in contact with the large lake basin thick delta sand body deposition simulation box 1. The top cover 32 is fixedly connected to the clamping frame 33. The clamping frame 33 is clamped to the large lake basin thick delta sand body deposition simulation box 1. The hydraulic cylinder 34 is fixedly installed on the top of the top cover 32. The hydraulic rod of the hydraulic cylinder 34 is fixedly connected to the pushing plate 35. The bottom of the pushing plate 35 is fixedly connected to the slicing knife 36.

[0047] With the above structure, by starting the hydraulic cylinder 34, the push plate 35 can drive the slicing knife 36 to move downward, and the slicing knife 36 slices the extremely thick sand body.

[0048] Specifically, through holes 31 are provided at the bottom of the large lake basin extremely thick delta sand body deposition simulation box 1, and transparent observation plates 37 are fixedly arranged around the large lake basin extremely thick delta sand body deposition simulation box 1. It should be noted that the setting of the transparent observation plates 37 facilitates the observation of the deposition process.

[0049] A method for a large lake basin extremely thick delta sand body deposition simulation device according to any one of the above, comprising the following steps:

[0050] S1: Select a large lake basin extremely thick delta sand body deposition simulation slope plate 5 with an appropriate slope, snap the sealing plate 6 on the bottom assembly plate 4 of the large lake basin extremely thick delta sand body deposition simulation slope plate 5 into the sealing hole 7, then start the electric telescopic rod 11 to make the positioning block 16 snap into the positioning hole 17 to limit the large lake basin extremely thick delta sand body deposition simulation slope plate 5. Then move the traction frame 30 upward and fix the traction frame 30 with fixing screws. By starting the infusion pump 15, the water level in the water storage tank 2 rises, which can simulate the rising tide. Then, in cooperation with the large lake basin extremely thick delta sand body deposition simulation slope plate 5, the automatic deposition of the large lake basin extremely thick delta sand body is realized;

[0051] S2: Start the electric telescopic rod 11 to make the connecting frame 12 move horizontally back and forth. When the connecting frame 12 moves to the right, the piston 14 can move to the right to inflate the expansion airbag 9. When the piston 14 moves to the left, the expansion airbag 9 is exhausted. During the inflation and exhaust processes of the expansion airbag 9, waves can be formed in the water storage tank, and the waves repeatedly impact the large lake basin extremely thick delta sand body deposition simulation slope plate 5, which is conducive to the deposition and formation of the large lake basin extremely thick delta sand body;

[0052] S3: When the touch rod 27 touches the opening panel 28, the strong electromagnet 25 is started at this time to adsorb the moving plate 23. The moving plate 23 moves upward to drive the side rod 21 to move upward through the groove body 24. The side rod 21 will drive the rectangular frame to flip, so that the steel balls 20 in the rectangular frame roll towards the inclined side. The steel balls 20 collide with each other, and the steel balls 20 rub against the tensioned mesh cloth 19 to make the sound of waves. When the touch rod 27 touches the closing panel 29, the strong electromagnet 25 is closed at this time, and the moving plate 23 moves downward due to its own gravity. The moving plate 23 will drive the side rod 21 to move downward at this time, causing the rectangular frame to flip again, and thus making the sound of waves again, with a relatively high authenticity;

[0053] S4: By controlling the speed of the electric telescopic rod 11 to drive the connecting frame 12, the influence of different wave actions on the deposition formation of the thick delta sand body in the large lake basin can be simulated. By lowering the traction frame 30 and then starting the electric telescopic rod 11, the positioning block 16 is moved out of the positioning hole 17. At this time, the thick delta sand body deposition simulation slope plate 5 of the large lake basin can be removed and replaced with the thick delta sand body deposition simulation slope plate 5 with different slopes, so as to simulate the influence of different slopes on the deposition formation of the thick delta sand body in the large lake basin;

[0054] S5: After the simulation is completed, a thick sand body is obtained. Starting the hydraulic cylinder 34 can cause the push plate 35 to drive the slicing knife 36 to move downward, and the slicing knife 36 slices the thick sand body. After the experiment, slicing observation can be carried out.

[0055] The above has introduced in detail a simulation device and method for the deposition of thick delta sand bodies in a large lake basin provided by the present invention. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A sedimentation simulation device for a thick delta sand body in a large lake basin, characterized in that Including: A large lake basin thick delta sand body deposition simulation box (1), a water storage tank (2) and an outer shell (3) are fixedly connected to the bottom of the large lake basin thick delta sand body deposition simulation box (1), the outer shell (3) is fixedly connected with the water storage tank (2), and a simulation switching mechanism, an auxiliary mechanism and a slicing mechanism are arranged on the large lake basin thick delta sand body deposition simulation box (1), the water storage tank (2) and the outer shell (3), and the simulation switching mechanism and the auxiliary mechanism are used in cooperation.

2. The sedimentation simulation device for large-scale lake-basin thick delta sand bodies according to claim 1, characterized in that, The simulation switching mechanism includes an assembly plate (4), a large lake basin thick delta sand body deposition simulation slope plate (5), a sealing plate (6), a mounting frame (8), an expansion airbag (9), a connecting pipe (10), an electric telescopic rod (11), a connecting frame (12), a rod body (13), a piston (14), an infusion pump (15) and a positioning block (16). The top of the assembly plate (4) is fixedly connected with the large lake basin thick delta sand body deposition simulation slope plate (5), the bottom of the assembly plate (4) is fixedly connected with the sealing plate (6), a sealing hole (7) is formed in the inner wall of the bottom of the large lake basin thick delta sand body deposition simulation box (1), and the sealing plate (6) is clamped with the sealing hole (7). The mounting frame (8) is fixedly connected with the expansion airbag (9), the mounting frame (8) is fixedly installed on the inner wall of the water storage tank (2), the connecting pipe (10) is fixedly connected with the expansion airbag (9), the connecting pipe (10) is fixedly installed on the water storage tank (2), the electric telescopic rod (11) and the infusion pump (15) are both fixedly installed on the water storage tank (2), the telescopic arm of the electric telescopic rod (11) is fixedly connected with the connecting frame (12), the connecting frame (12) is fixedly connected with the rod body (13) and the positioning block (16), the rod body (13) is fixedly connected with the piston (14), the piston (14) is slidably and sealingly installed in the connecting pipe (10), a positioning hole (17) is formed in one side of the sealing plate (6), and the positioning block (16) is clamped with the positioning hole (17).

3. The sedimentation simulation device for a large-scale lake basin's extremely thick delta sand body according to claim 2, wherein The auxiliary mechanism includes a rotating shaft (18), a tensioned mesh (19), steel balls (20), side rods (21), a moving plate (23), a powerful electromagnet (25), a vertical rod (26), a touch rod (27), an opening panel (28) and a closing panel (29). The rotating shaft (18) is rotatably installed on the outer housing (3). A rectangular frame is fixedly connected to the end of the rotating shaft (18). The tensioned mesh (19) is fixedly installed on the rectangular frame. The steel balls (20) are located inside the rectangular frame. The side rod (21) is fixedly connected to the rectangular frame. A moving groove (22) is formed on one inner wall of the outer housing (3). The moving plate (23) is slidably installed in the moving groove (22). A groove body (24) is formed on one side of the moving plate (23). The side rod (21) is located inside the groove body (24). The powerful electromagnet (25) is fixedly installed in the moving groove (22). The top end of the vertical rod (26) is fixedly connected to the rod body (13), and the bottom end of the vertical rod (26) is fixedly connected to the touch rod (27). The closing panel (29) is fixedly installed on the water storage tank (2).

4. A large lake basin thick delta sand body deposition simulation device according to claim 3, characterized in that, The moving plate (23) is made of iron. An edge hole is formed on one side of the connecting frame (12), and the rectangular frame passes through the edge hole.

5. A large lake basin thick delta sand body deposition simulation device according to claim 3, characterized in that, Both the opening panel (28) and the closing panel (29) are electrically connected to the powerful electromagnet (25). A traction frame (30) is fixedly connected to the bottom of the opening panel (28). A fixing screw is threadedly connected to the traction frame (30). The traction frame (30) is slidably installed on the outer housing (3). The fixing screw is threadedly connected to the outer housing (3). An outer hole is formed at the rear of the outer housing (3).

6. The sedimentation simulation device for large-scale lake basin thick delta sand bodies according to claim 1, characterized in that, The slicing mechanism includes a top cover (32), a clamping frame (33), a hydraulic cylinder (34), a push plate (35) and a slicing knife (36). The bottom of the top cover (32) is in contact with the large lake basin thick delta sand body deposition simulation box (1). The top cover (32) is fixedly connected to the clamping frame (33). The clamping frame (33) is clamped with the large lake basin thick delta sand body deposition simulation box (1). The hydraulic cylinder (34) is fixedly installed on the top of the top cover (32). The hydraulic rod of the hydraulic cylinder (34) is fixedly connected to the push plate (35). The bottom of the push plate (35) is fixedly connected to the slicing knife (36).

7. A large lake basin thick delta sand body deposition simulation device according to claim 1, characterized in that, A through hole (31) is formed at the bottom of the large lake basin thick delta sand body deposition simulation box (1). Transparent observation plates (37) are fixedly arranged around the large lake basin thick delta sand body deposition simulation box (1).

8. A method for a large lake basin thick delta sand body deposition simulation device according to any one of claims 1-7, characterized in that, Including the following steps: S1: Select a large - scale lake - basin thick - delta sand - body deposition simulation slope plate (5) with an appropriate slope. Snap the sealing plate (6) on the bottom assembly plate (4) of the large - scale lake - basin thick - delta sand - body deposition simulation slope plate (5) into the sealing hole (7). Then start the electric telescopic rod (11) so that the positioning block (16) snaps into the positioning hole (17) to limit the large - scale lake - basin thick - delta sand - body deposition simulation slope plate (5). Next, move the traction frame (30) upward and fix the traction frame (30) with a fixing screw. By starting the infusion pump (15), the water level in the water storage tank (2) rises, which can simulate the rising tide. Then, in cooperation with the large - scale lake - basin thick - delta sand - body deposition simulation slope plate (5), the automatic deposition of the large - scale lake - basin thick - delta sand - body is achieved; S2: Start the electric telescopic rod (11) so that the connecting frame (12) moves horizontally back and forth. When the connecting frame (12) moves to the right, the piston (14) can be made to move to the right to inflate the expansion airbag (9). When the piston (14) moves to the left, the expansion airbag (9) is exhausted. During the inflation and deflation of the expansion airbag (9), waves can be formed in the water storage tank. The waves repeatedly impact the large - scale lake - basin thick - delta sand - body deposition simulation slope plate (5), which is conducive to the deposition and formation of the large - scale lake - basin thick - delta sand - body; S3: When the touch rod (27) touches the opening panel (28), the strong electromagnet (25) is started to adsorb the moving plate (23). The moving plate (23) moves upward and drives the side rod (21) to move upward through the groove body (24). The side rod (21) drives the rectangular frame to flip, so that the steel balls (20) in the rectangular frame roll towards the inclined side. The steel balls (20) collide with each other, and the steel balls (20) rub against the tensioned mesh cloth (19) to emit the sound of waves. When the touch rod (27) touches the closing panel (29), the strong electromagnet (25) is turned off, and the moving plate (23) moves downward due to its own gravity. At this time, the moving plate (23) drives the side rod (21) to move downward, causing the rectangular frame to flip again, and thus emitting the sound of waves again, with a relatively high degree of authenticity; S4: By controlling the speed of the electric telescopic rod (11) driving the connecting frame (12), the influence of different wave actions on the deposition and formation of the large - scale lake - basin thick - delta sand - body can be simulated. By moving the traction frame (30) downward and then starting the electric telescopic rod (11), the positioning block (16) is removed from the positioning hole (17). At this time, the large - scale lake - basin thick - delta sand - body deposition simulation slope plate (5) can be removed and replaced with a large - scale lake - basin thick - delta sand - body deposition simulation slope plate (5) with a different slope, so as to simulate the influence of different slopes on the deposition and formation of the large - scale lake - basin thick - delta sand - body; S5: After the simulation, a thick sand body is obtained. Start the hydraulic cylinder (34), which can make the push plate (35) drive the slicing knife (36) to move downward. The slicing knife (36) slices the thick sand body. After the experiment, slice observation can be carried out.

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