Geological fault simulation device and method

Abstract

The invention discloses a geological fault simulation device and method, and relates to the technical field of geological simulation, the simulation device comprises a support seat, a simulation concave disc, a plate fault simulation block, a reservoir simulation hose and a cover plate; the simulation concave disc is rotatably mounted on the supporting seat, the two plate fault simulation blocks are assembled in the opening side of the simulation concave disc, the reservoir simulation hoses are mounted in the plate fault simulation blocks, the shape of each reservoir simulation hose is adjustable, and the cover plate covers the opening side of the simulation concave disc. By arranging the sliding assembly, the adjusting assembly and the sealing mechanism, the adjusting assembly can be utilized to finely adjust the simulation process, the sealing mechanism can be utilized to highly seal the plate fault simulation block, and meanwhile, the sliding assembly and the adjusting assembly can be utilized to highly flexibly adjust the plate fault simulation block; fine adjustment can be achieved in the fault simulation process, and combination of high sealing performance and high flexible adjustment performance can be met at the same time.

Description

Technical Field

[0001] The present invention relates to the field of geological simulation technology, and more specifically to a geological fault simulation device and method. Background Art

[0002] The three types of faults in nature give rise to complex and diverse fault systems. The scales of fault systems vary greatly, ranging from the fault of rock layers to the mid-ocean ridges that span the ocean. Oil is nurtured in basins, and faults can provide space for the formation of basins. Many famous oil fields in the world are located in basins controlled by normal faults. The activity of faults will cause the upper plate of the fault to sink, which is conducive to the accumulation of sediments. Over time, the organic matter in the basin sediments is continuously compacted by the new sediments above, and becomes oil or natural gas under certain temperature and pressure conditions. In addition to energy, faults are also closely related to the distribution of metal minerals and water resources. Fault zones provide space for the flow of hydrothermal fluids or groundwater that precipitate metals. After recognizing the existence of faults, water or other resources can be found along the distribution of faults.

[0003] In the existing technology, the use of geological fault simulation can help people quickly understand the state and changes of faults and predict the location and direction of resources. However, the existing geological fault simulation devices cannot achieve fine adjustment during the fault simulation process and cannot simultaneously meet the combination of high sealing and high flexible adjustment performance. Summary of the invention

[0004] In order to overcome the defects existing in the above-mentioned prior art, the present invention discloses a geological fault simulation device and method. The purpose of the present invention is to solve the problem that the prior art cannot achieve fine adjustment during the fault simulation process, and cannot simultaneously meet the combination of high sealing and high flexible adjustment performance. The present invention sets a sliding component, an adjustment component and a sealing mechanism, and can use the adjustment component to finely adjust the simulation process, and can use the sealing mechanism to highly seal the plate fault simulation block, and can use the sliding component and the adjustment component to highly flexibly adjust the plate fault simulation block. In addition, the present invention can finely adjust the position of the plate fault simulation block, and adopts a method of causing extremely small driving force to the driving arc surface and the plate fault simulation block, so as to achieve fine dynamic adjustment of the geological fault simulation, and after the adjustment is completed, the lateral displacement plate can be effectively fixed, and the present invention can effectively improve the sealing performance of the bottom of the simulated fault.

[0005] In order to achieve the above objectives, the technical solution adopted by the present invention is: A geological fault simulation device comprises a support seat, a simulation concave plate, a plate fault simulation block, a reservoir simulation hose and a cover plate; The simulation concave disk is rotatably mounted on the support seat, the plate fault simulation blocks are mounted inside the opening side of the simulation concave disk and are provided with two blocks, the reservoir simulation hose is installed in the plate fault simulation block and its shape is adjustable, and the cover plate is provided on the opening side of the simulation concave disk; The simulation concave plate is provided with an adjustment mechanism for adjusting the lateral and vertical positions of the plate fault simulation block, and the adjustment mechanism includes a sliding component and an adjustment component for driving the plate fault simulation block to move lateral and vertically on the sliding component and performing rough and fine adjustment on the lateral and vertical movement; The plate fault simulation block is provided with a sealing strip, and the sealing strip is provided with a sealing mechanism. The sealing mechanism has two states, namely, tightened and relaxed. When tightened, the friction between the sealing strip and the cover plate is increased to tightly seal the two. When relaxed, the friction between the sealing strip and the cover plate is reduced to adjust the position of the plate fault simulation block.

[0006] Preferably, the sliding assembly comprises a lateral displacement plate, a lateral slide groove, a lateral slider and a vertical slide rail slide groove; The transverse slider is fixedly arranged on the inner surface of the opening side of the simulation concave disk, the transverse displacement plate is slidably assembled on the transverse slider through the transverse sliding groove inside it, and the plate fault simulation block is slidably assembled on the transverse displacement plate through the vertical sliding rail sliding groove.

[0007] Preferably, the adjustment assembly comprises a precision adjustment ring, a cylinder, a rolling column and a driving camber; The precision adjustment ring is rotatably mounted on the inner side wall of the opening side of the simulation concave disk, the two plate fault simulation blocks are both located inside the precision adjustment ring and inverted with each other, the cylinder is mounted on the inner side wall of the precision adjustment ring, the rolling column is rotatably mounted on the end of the telescopic rod of the cylinder, and a scale for observing the telescopic distance of the cylinder is provided on one side of the simulation concave disk close to the cover plate; The driving arc surface has a gradually increasing curvature from one end to the other end. The driving arc surface is arranged on the side wall of the plate fault simulation block close to the end of the precision adjustment ring. The driving arc surfaces on the two plate fault simulation blocks are arranged diagonally, and the rolling column is in rolling contact with the driving arc surface.

[0008] Preferably, the sealing mechanism comprises a steel wire rope and a rope groove, a rope groove is provided on the side of the side wall of the plate fault simulation block close to the sealing strip, and the steel wire rope passes through the rope groove; A deformation expansion groove is arranged on the side of the sealing strip close to the rope groove, and a first movable groove is opened on the side wall of the plate fault simulation block close to the sealing strip. A filling block is slidably installed inside the first movable groove, and the filling block is simultaneously embedded in the deformation expansion groove. A rope hole is arranged in the filling block, and the steel wire rope passes through the rope hole. When the steel wire rope is tightened, it drives the filling block to move toward the deformation expansion groove to squeeze the sealing strip outward. When the steel wire rope is relaxed, the sealing strip drives the filling block in the deformation expansion groove to move toward the first movable groove.

[0009] Preferably, the starting end of the steel wire rope passes through the starting end through hole and is connected with a starting fixed knot, and the tail end of the steel wire rope is connected with a second movable block; A second movable groove is provided inside the plate fault simulation block, and the second movable block is slidably assembled in the second movable groove. A driving threaded hole is provided on the second movable block. A control through hole is also provided on the side wall of the plate fault simulation block. A driving member is assembled in the control through hole, and the driving member is connected to the driving threaded hole. The driving member drives the second movable block to move in the second movable groove to tighten or loosen the wire rope.

[0010] Preferably, the simulation concave disc is provided with an adjustment mechanism for adjusting the shape of the reservoir simulation hose, the adjustment mechanism comprises a plurality of adjustment components, and the plurality of adjustment components each comprises a positioning bar, a threaded connecting rod, a bellows, a first adjustment through hole, a second adjustment through hole and a nut; The positioning bar is located on the inner surface of the opening side of the simulation concave disk and contacts with the reservoir simulation hose, the first adjusting through hole and the second adjusting through hole are respectively arranged on the lateral displacement plate and the simulation concave disk and the two are aligned and extend in the vertical direction, one end of the threaded connecting rod is connected to the positioning bar, and the other end is assembled with the nut after passing through the first adjusting through hole and the second adjusting through hole, the nut is located on the back side of the simulation concave disk and abuts against it, and the bellows is arranged between the positioning bar and the lateral displacement plate; the nut is used to adjust the position of the threaded connecting rod in the vertical direction, so that the positioning bar moves in the vertical direction to squeeze the reservoir simulation hose and adjust the shape of the reservoir simulation hose.

[0011] Preferably, a first strong magnet is embedded and installed on the back side of the lateral displacement plate, and a second strong magnet adapted to the first strong magnet is installed on the back side of the simulated concave disk.

[0012] Preferably, a plurality of sealing air bags are arranged between the bottoms of the two plate fault simulation blocks, and fault through holes are penetrated through the side walls of the two plate fault simulation blocks at their close ends, and the fault through holes are connected to the inside of the reservoir simulation hose through a fault connecting pipe.

[0013] Preferably, the cover plate is a transparent cover plate, and a side clamping plate is fixedly mounted on the edge of the transparent cover plate, and the transparent cover plate is interference-fitted with the outer side wall of the simulated concave disk through the side clamping plate.

[0014] Based on the above geological fault simulation device, the present invention also provides a geological fault simulation method on the other hand, including a fault fixing and filling step and a geological fault driving simulation step; The fault fixing and filling step comprises the following steps: S11, fault fixing: flip the simulation concave plate to a horizontal state, use the sliding assembly to adjust the two plate fault simulation blocks to a suitable position, and then adjust the shape of the reservoir simulation hose inside and fix the adjusted shape; S12, filling the simulation hose: filling the reservoir simulation hose with rock formation simulation particles, and closing the cover plate on the simulation concave plate, sealing the cover plate and the plate fault simulation block by using a sealing mechanism, and sealing the bottom of the gap between the two plate fault simulation blocks; The geological fault driving simulation step comprises the following steps: S21, simulated fault filling: rotate the simulated concave disk to a vertical state, and fill particles of corresponding diameter from above the plate fault simulation block to between two plate fault simulation blocks to simulate the filling of the fault; S22, fault drive simulation: after the simulated fault is filled, particles of different sizes are laid on the plate fault simulation block to simulate different geological rock layers; then the plate fault simulation block is roughly adjusted using the adjustment component to make the two plate fault simulation blocks overlap with each other to simulate the formation of geological faults; S23, fine fault adjustment: use the adjustment component to finely adjust the plate fault simulation block; S24, simulated gas expulsion between fault particles, simulation test of corresponding angle faults and corresponding angle shape reservoir sealing.

[0015] Beneficial effects of the invention: 1. The geological fault simulation device provided by the present invention can use the adjustment component to finely adjust the simulation process, use the sealing mechanism to highly seal the plate fault simulation block, and use the sliding component and the adjustment component to highly flexibly adjust the plate fault simulation block. In addition, the shape of the reservoir simulation hose can be adjusted by the adjustment mechanism. Therefore, it can achieve fine adjustment in the fault simulation process and can simultaneously meet the combination of high sealing and high flexible adjustment performance.

[0016] 2. The geological fault simulation device provided by the present invention can finely adjust the position of the plate fault simulation block. It adopts the method of rotating the precision adjustment ring, and then the rolling column rolls on the driving arc surface, which causes a very small driving force on the driving arc surface and the plate fault simulation block, and can realize the fine dynamic adjustment of the geological fault simulation. After the adjustment is completed, the second strong magnet can be used to effectively fix the lateral displacement plate to prevent the rebound of the adjusted lateral displacement plate position caused by the rebound force of the expansion of the sealing airbag. The sealing airbags of different shapes and sizes in the present invention can effectively improve the sealing performance of the bottom of the simulated fault; the simulation concave disk is provided with a scale close to the transparent cover plate, which is convenient for observing the moving position of the cylinder relative to the scale, and the observation is convenient, and the displacement control of the plate fault simulation block can be more fine.

[0017] 3. During the operation of geological fault simulation, the transparent cover plate fits tightly with the plate fault simulation block, which makes the simulated fault well sealed, and does not leak liquid outward or infiltrate air inward. At the same time, it also causes the plate fault simulation block to be subjected to excessive friction, so that the plate fault simulation block cannot be effectively adjusted smoothly. In the present invention, the initial fixed knot fixes one end of the wire rope, and the driving member is rotated from the bottom of the plate fault simulation block. The driving member drives the second movable block to slide vertically in the second movable groove, so as to realize the tightening and relaxation of the wire rope. In the tightened state, the filling block fits tightly with the deformation expansion groove, so that the friction between the rubber sealing strip and the transparent cover plate is large and the sealing effect is good; in the relaxed state, the filling block is easy to move toward the first movable groove after being stressed, and the friction between the rubber sealing strip and the transparent cover plate is small, which is convenient for adjusting the position of the plate fault simulation block, and convenient for adjusting the simulation state in the later operation of geological fault simulation, so that the geological fault simulation is more flexible and can simulate the further geological dynamic change state after the geological fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall orthographic oblique structure of the geological fault simulation device of the present invention; Figure 2 It is a rear oblique structural schematic diagram of the geological fault simulation device of the present invention; Figure 3 The geological fault simulation device of the present invention Figure 2 A schematic diagram of the enlarged structure of the middle A area; Figure 4 It is a schematic diagram of the side cross-sectional structure of the positioning strip area of ​​the geological fault simulation device of the present invention; Figure 5 It is a schematic diagram of the side cross-sectional structure of the rubber sealing strip area of ​​the geological fault simulation device of the present invention; Figure 6 It is a schematic diagram of the main cross-sectional structure of the through hole area at the starting end of the geological fault simulation device of the present invention.

[0019] Reference numerals: 101, support seat; 102, simulated concave plate; 103, cover plate; 104, side clamping plate; 201, lateral displacement plate; 202, plate fault simulation block; 203, lateral slide groove; 204, lateral slider; 205, first strong magnet; 206, second strong magnet; 301, reservoir simulation hose; 302, fault through hole; 303, fault connecting pipe; 401, positioning strip; 402, threaded connecting rod; 403, bellows; 404, first adjustment through hole; 405, second adjustment through hole; 406, nut; 5 01, precision adjustment ring; 502, cylinder; 503, rolling column; 504, driving arc surface; 505, vertical slide rail groove; 601, sealing airbag; 701, sealing strip; 702, rope groove; 703, deformation expansion groove; 704, first movable groove; 705, filling block; 706, rope hole; 707, wire rope; 801, starting end through hole; 802, starting fixed knot; 803, second movable groove; 804, second movable block; 805, driving threaded hole; 806, driving member; 807, tail end of wire rope. DETAILED DESCRIPTION

[0020] The concept, specific structure and technical effects of the present invention will be clearly and completely described below in combination with the embodiments and drawings to fully understand the purpose, characteristics and effects of the present invention.

[0021] Example 1 A geological fault simulation device, such as Figure 1 As shown, it includes a support seat 101, a simulated concave plate 102, a plate fault simulation block 202, a reservoir simulation hose 301 and a cover plate 103; The simulation concave plate 102 is rotatably mounted on the support seat 101, two plate fault simulation blocks 202 are assembled inside the opening side of the simulation concave plate 102, a reservoir simulation hose 301 is installed in the plate fault simulation block 202 and its shape is adjustable, and a cover plate 103 is covered on the opening side of the simulation concave plate 102; The simulation concave plate 102 is provided with an adjustment mechanism for adjusting the horizontal and vertical positions of the plate fault simulation block 202, and the adjustment mechanism includes a sliding component and an adjustment component for driving the plate fault simulation block 202 to move horizontally and vertically on the sliding component and performing rough and fine adjustment on the horizontal and vertical movement; A sealing strip 701 is provided on the plate fault simulation block 202, and a sealing mechanism is provided on the sealing strip 701. The sealing mechanism has two states: tightened and relaxed. When tightened, the friction between the sealing strip 701 and the cover plate 103 increases to tightly seal the two. When relaxed, the friction between the sealing strip 701 and the cover plate 103 decreases to adjust the position of the plate fault simulation block 202.

[0022] In this embodiment, the support seat 101 is used to support the simulation device; the simulation concave plate 102 is used to install the plate fault simulation block 202; the plate fault simulation block 202 is used to simulate the plate fault; the reservoir simulation hose 301 is used to simulate the reservoir; the cover plate 103 is used to cover the simulation concave plate 102 and seal the plate fault simulation block 202.

[0023] In this embodiment, by setting a sliding component, an adjusting component and a sealing mechanism, the adjusting component can be used to perform fine adjustment on the simulation process, the sealing mechanism can be used to perform high sealing on the plate fault simulation block 202, and the sliding component and the adjusting component can be used to perform high flexibility on the plate fault simulation block 202. Therefore, the geological fault simulation device provided in this embodiment can achieve fine adjustment in the fault simulation process, and can simultaneously meet the combination of high sealing and high flexible adjustment performance.

[0024] Example 2 This embodiment is further described on the basis of embodiment 1. Figure 1 As shown, the sliding assembly includes a transverse displacement plate 201, a transverse slide groove 203, a transverse slider 204 and a vertical slide rail groove 505; the transverse slider 204 is fixedly arranged on the inner surface of the opening side of the simulation concave disk 102, the transverse displacement plate 201 is slidably assembled on the transverse slider 204 through the transverse slide groove 203 inside it, and the plate fault simulation block 202 is slidably assembled on the transverse displacement plate 201 through the vertical slide rail groove 505.

[0025] In this embodiment, the lateral displacement of the plate fault simulation block 202 can be achieved through the lateral displacement plate 201, the lateral sliding groove 203, and the lateral sliding block 204. The vertical displacement of the plate fault simulation block 202 can be achieved through the vertical sliding rail sliding groove 505.

[0026] like Figure 1 As shown, the adjustment assembly includes a precision adjustment ring 501, a cylinder 502, a rolling column 503 and a driving arc surface 504; The precision adjustment ring 501 is rotatably mounted on the inner wall of the opening side of the simulation concave plate 102, the two plate fault simulation blocks 202 are both located inside the precision adjustment ring 501 and inverted with each other, the cylinder 502 is mounted on the inner wall of the precision adjustment ring 501, the rolling column 503 is rotatably mounted on the end of the telescopic rod of the cylinder 502, and a scale for observing the telescopic distance of the cylinder 502 is provided on one side of the simulation concave plate 102 close to the cover plate 103; The driving arc surface 504 gradually increases in curvature from one end to the other end. The driving arc surface 504 is set on the side wall of the plate fault simulation block 202 close to the end of the precision adjustment ring 501. The driving arc surfaces 504 on the two plate fault simulation blocks 202 are arranged diagonally, and the rolling column 503 is in rolling contact with the driving arc surface 504.

[0027] like Figure 1 and 2 As shown, a first strong magnet 205 is embedded and installed on the back side of the lateral displacement plate 201 , and a second strong magnet 206 adapted to the first strong magnet 205 is installed on the back side of the simulated concave disk 102 .

[0028] In this embodiment, when adjusting, the driving cylinder 502 operates, and the rolling column 503 is pushed and rolls on the arc surface of the driving arc surface 504, which can cause lateral and vertical driving forces on the plate fault simulation block 202, so that the two plate fault simulation blocks 202 are interlocked with each other, simulating the formation of a geological fault.

[0029] The mechanical drive has low control accuracy on the position of the plate fault simulation block 202. The driving arc surface 504 is a driving arc surface 504 whose curvature gradually increases from one end to the other end. When it is necessary to fine-tune the position of the plate fault simulation block 202, the precision adjustment ring 501 is manually rotated, and then the rolling column 503 rolls on the arc surface of the driving arc surface 504, which causes a very small driving force on the driving arc surface 504 and the plate fault simulation block 202, thereby realizing fine dynamic adjustment of the geological fault simulation.

[0030] After the adjustment is completed, the second strong magnet 206 is adsorbed on the area behind the simulated concave plate 102 close to the first strong magnet 205 to achieve the fixing effect of the lateral displacement plate 201.

[0031] Example 3 This embodiment is further described on the basis of embodiment 2. Figure 1 and 5 As shown, the sealing mechanism includes a wire rope 707 and a rope groove 702. A rope groove 702 is provided on the side wall of the plate fault simulation block 202 close to the sealing strip 701, and the wire rope 707 passes through the rope groove 702; a deformation expansion groove 703 is provided on the side wall of the sealing strip 701 close to the rope groove 702, and a first movable groove 704 is provided on the side wall of the plate fault simulation block 202 close to the sealing strip 701. A filling block 705 is slidably installed inside the first movable groove 704, and the filling block 705 is also embedded in the deformation expansion groove 703. A rope hole 706 is provided in the filling block 705, and the wire rope 707 passes through the rope hole 706. When the wire rope 707 is tightened, it drives the filling block 705 to move toward the deformation expansion groove 703 to squeeze the sealing strip 701 outward. When the wire rope 707 is relaxed, the sealing strip 701 drives the filling block 705 in the deformation expansion groove 703 to move toward the first movable groove 704.

[0032] like Figure 1 and 6As shown, the starting end of the wire rope 707 passes through the starting end through hole 801 and is connected to the starting fixed knot 802, and the tail end 807 of the wire rope is connected to the second movable block 804; a second movable groove 803 is opened inside the plate fault simulation block 202, and the second movable block 804 is slidably assembled in the second movable groove 803, and a driving threaded hole 805 is arranged on the second movable block 804. A control through hole is also opened on the side wall of the plate fault simulation block 202, and a driving member 806 is assembled in the control through hole, and the driving member 806 is connected to the driving threaded hole 805. The driving member 806 drives the second movable block 804 to move in the second movable groove 803 to tighten or loosen the wire rope 707.

[0033] In this embodiment, the driving member 806 is a screw. The initial fixed knot 802 fixes one end of the wire rope 707, and the screw 806 is rotated from the bottom of the plate fault simulation block 202, and then the screw 806 drives the second movable block 804 to slide vertically in the second movable groove 803 by using the thread, so as to realize the tightening and loosening of the wire rope 707.

[0034] In the tightened state, the filling block 705 fits tightly with the deformation expansion groove 703, so that the friction between the rubber sealing strip 701 and the transparent cover plate 103 is large and the sealing effect is good. During the geological fault simulation operation, the cover plate 103 fits tightly with the plate fault simulation block 202, which makes the simulated fault well sealed and prevents liquid from leaking out or air from leaking in. At the same time, it also causes the friction force on the plate fault simulation block 202 to be too large, so that the plate fault simulation block 202 cannot be effectively adjusted smoothly.

[0035] In this embodiment, the problem of unsmooth adjustment in the above-mentioned tightened state is solved in the relaxed state. In the relaxed state, the filling block 705 is easy to move toward the first movable groove 704 after being stressed, and the friction between the rubber sealing strip 701 and the transparent cover 103 is small, which facilitates the position adjustment of the plate fault simulation block 202, facilitates the adjustment of the simulation state in the later operation of the geological fault simulation, makes the geological fault simulation more flexible, and can simulate the further geological dynamic change state after the geological fault.

[0036] Example 4 This embodiment is further described on the basis of embodiment 3. Figure 1 , 2 , 3 and 4, an adjustment mechanism for adjusting the shape of the reservoir simulation hose 301 is provided on the simulation concave disc 102, and the adjustment mechanism includes a plurality of adjustment components, and the plurality of adjustment components include a positioning bar 401, a threaded connecting rod 402, a bellows 403, a first adjustment through hole 404, a second adjustment through hole 405 and a nut 406; The positioning bar 401 is located on the inner surface of the opening side of the simulation concave disk 102 and contacts the reservoir simulation hose 301. The first adjustment through hole 404 and the second adjustment through hole 405 are respectively arranged on the lateral displacement plate 201 and the simulation concave disk 102 and the two are aligned and extend in the vertical direction. One end of the threaded connecting rod 402 is connected to the positioning bar 401, and the other end passes through the first adjustment through hole 404 and the second adjustment through hole 405 and is assembled with a nut 406. The nut 406 is located on the back side of the simulation concave disk 102 and abuts against it. The bellows 403 is arranged between the positioning bar 401 and the lateral displacement plate 201. The nut 406 is used to adjust the position of the threaded connecting rod 402 in the vertical direction, so that the positioning bar 401 moves in the vertical direction to squeeze the reservoir simulation hose 301 and adjust the shape of the reservoir simulation hose 301.

[0037] In this embodiment, the shape of the reservoir simulation hose 301 can be adjusted by the above adjustment mechanism. First, loosen the nut 406, manually adjust the position of the positioning strip 401 to control the shape of the reservoir simulation hose 301, and tighten the nut 406 after adjustment to increase the friction between the nut 406 and the simulation concave disc 102, so as to achieve the effect of fixing the threaded connecting rod 402, the positioning strip 401, and the reservoir simulation hose 301 in sequence, and the shape of the reservoir simulation hose 301 is fixed.

[0038] Example 5 This embodiment is further described on the basis of embodiment 4. Figure 1 As shown, a plurality of sealing airbags 601 are arranged between the bottoms of the two plate fault simulation blocks 202, and fault through holes 302 are penetrated through the side walls of the two plate fault simulation blocks 202 at the close ends, and the fault through holes 302 are connected to the inside of the reservoir simulation hose 301 through the fault connection tube 303. By arranging the sealing airbags 601, the sealing airbags 601 can perform high-quality sealing on the bottom of the gap formed by the two plate fault simulation blocks 202.

[0039] like Figure 1 As shown, the cover plate 103 is a transparent cover plate 103 , and a side clamping plate 104 is fixedly installed on the edge of the transparent cover plate 103 . The transparent cover plate 103 is interference-fitted with the outer side wall of the simulated concave plate 102 through the side clamping plate 104 .

[0040] Example 6 A geological fault simulation method comprises the following steps: Step 1: Fault fixation and filling: S11. Fault fixation: flip the simulation concave plate 102 to a horizontal state, use the vertical slide rail slot 505, the horizontal slide slot 203, and the horizontal slider 204 to adjust the two plate fault simulation blocks 202 to a suitable position, manually adjust the position of the positioning bar 401 to control the shape of the reservoir simulation hose 301, and tighten the nut 406 after adjustment to increase the friction between the nut 406 and the simulation concave plate 102, thereby achieving the effect of fixing the threaded connecting rod 402, the positioning bar 401, and the reservoir simulation hose 301 in sequence, and the shape of the reservoir simulation hose 301 is fixed.

[0041] S12. Filling the simulation hose: Fill the reservoir simulation hose 301 with rock formation simulation particles, and use the side clamping plate 104 to fix the transparent cover 103 on the simulation concave plate 102, so that the transparent cover 103 and the side wall of the plate fault simulation block 202 fit each other, and the rubber sealing strip 701 is squeezed to achieve a sealing effect. Use external pipes and inflation devices to inflate the sealing airbag 601, and several sealing airbags 601 with different volumes and shapes can perform high-quality sealing on the bottom of the gap formed by the two plate fault simulation blocks 202.

[0042] Step 2: Geological fault drive simulation: S21, simulated fault filling: rotate the simulated concave disk 102 to a vertical state, and fill particles of corresponding diameter from above the plate fault simulation block 202 to between two plate fault simulation blocks 202 to achieve the filling of the simulated fault.

[0043] S22, fault drive simulation: After the simulated fault is filled, particles of different sizes are laid on the plate fault simulation block 202 to simulate different geological rock layers; the driving cylinder 502 is operated, and the rolling column 503 is pushed and rolls on the arc surface of the driving arc surface 504, which can cause lateral and vertical driving forces on the plate fault simulation block 202, so that the two plate fault simulation blocks 202 are interlocked with each other, simulating the formation of a geological fault.

[0044] S23. Fine fault adjustment: The mechanical drive has low control accuracy on the position of the plate fault simulation block 202. The driving arc surface 504 is a driving arc surface 504 with a gradually increasing arc from one end to the other end. When it is necessary to finely adjust the position of the plate fault simulation block 202, the fine adjustment ring 501 is manually rotated, and then the rolling column 503 rolls on the driving arc surface 504, which creates a very small driving force on the driving arc surface 504 and the plate fault simulation block 202, thereby realizing fine dynamic simulation of geological faults. After the adjustment is completed, the second strong magnet 206 is adsorbed on the area behind the simulation concave disk 102 near the first strong magnet 205 to achieve the fixing effect of the lateral displacement plate 201, so as to prevent the rebound force of the expanded sealing airbag 601 from rebounding the adjusted lateral displacement plate 201 position; a scale is set on the side of the simulation concave disk 102 close to the transparent cover 103, which is convenient for observing the moving position of the cylinder 502 relative to the scale, and the observation is convenient, so that the displacement control of the plate fault simulation block 202 can be more precise.

[0045] S24. By pre-buried pipelines above the sealing airbag 601, distilled water is injected into the bottom of the simulated fault through the pre-buried pipelines to simulate the discharge of gas between the fault particles. When the distilled water completely infiltrates the simulated fault and the particles in the reservoir simulation hose 301, dyed kerosene is stably and continuously input to the bottom of the simulated fault through the pre-buried pipelines. The height of the oil column in the simulated fault increases continuously with the transportation time, and the oil migrates upward along the simulated fault and is input into the reservoir simulation hose 301 through the fault connecting pipe 303. The height and width of the oil layer in the single reservoir simulation hose 301 no longer change, achieving a balance in its maximum storage capacity, and being able to complete the simulation test of the corresponding angle fault and the corresponding angle shape reservoir sealing.

[0046] During the geological fault simulation operation, the transparent cover 103 fits tightly with the plate fault simulation block 202, which makes the simulated fault well sealed and prevents liquid from leaking out or air from penetrating in. At the same time, the friction force on the plate fault simulation block 202 is too large, making it impossible to effectively adjust the plate fault simulation block 202 smoothly. The initial fixed knot 802 fixes one end of the wire rope 707, and the screw 806 is rotated from the bottom of the plate fault simulation block 202, so that the screw 806 drives the second movable block 804 to slide vertically in the second movable groove 803 by using the thread, so that the wire rope 707 can be adjusted smoothly. In the tightened state, the filling block 705 fits tightly with the deformation expansion groove 703, so that the friction between the rubber sealing strip 701 and the transparent cover 103 is large and the sealing effect is good. In the relaxed state, the filling block 705 is easy to move toward the first movable groove 704 after being stressed, and the friction between the rubber sealing strip 701 and the transparent cover 103 is small, which is convenient for adjusting the position of the plate fault simulation block 202, and convenient for adjusting the simulation state in the later operation of the geological fault simulation, making the geological fault simulation more flexible and able to simulate the further geological dynamic change state after the geological fault.

[0047] The above is a specific description of the implementation mode of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalents or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A geological fault simulation device, characterized in that: It comprises a support seat (101), a simulated concave plate (102), a plate fault simulation block (202), a reservoir simulation hose (301) and a cover plate (103); The simulation concave disc (102) is rotatably mounted on the support seat (101); the plate fault simulation blocks (202) are mounted inside the opening side of the simulation concave disc (102) and are provided with two blocks; the reservoir simulation hose (301) is installed inside the plate fault simulation block (202) and its shape is adjustable; and the cover plate (103) is provided to cover the opening side of the simulation concave disc (102); The simulation concave disk (102) is provided with an adjustment mechanism for adjusting the lateral and vertical positions of the plate fault simulation block (202), the adjustment mechanism comprising a sliding component and an adjustment component for driving the plate fault simulation block (202) to move lateral and vertically on the sliding component and for performing rough and fine adjustments on the lateral and vertical movements; The plate fault simulation block (202) is provided with a sealing strip (701), and the sealing strip (701) is provided with a sealing mechanism. The sealing mechanism has two states: tightened and relaxed. When tightened, the friction between the sealing strip (701) and the cover plate (103) increases, so that the two are tightly sealed. When relaxed, the friction between the sealing strip (701) and the cover plate (103) decreases, so that the position of the plate fault simulation block (202) can be adjusted.

2. The geological fault simulation device according to claim 1, characterized in that: The sliding assembly comprises a transverse displacement plate (201), a transverse slide groove (203), a transverse sliding block (204) and a vertical slide rail slide groove (505); The transverse sliding block (204) is fixedly arranged on the inner surface of the opening side of the simulation concave disk (102); the transverse displacement plate (201) is slidably assembled on the transverse sliding block (204) via the transverse sliding groove (203) inside the transverse sliding block (201); and the plate fault simulation block (202) is slidably assembled on the transverse displacement plate (201) via the vertical sliding rail sliding groove (505).

3. The geological fault simulation device according to claim 2, characterized in that: The adjustment component comprises a precision adjustment ring (501), a cylinder (502), a rolling column (503) and a driving arc surface (504); The precision adjustment ring (501) is rotatably mounted on the inner side wall of the opening side of the simulation concave disk (102); the two plate fault simulation blocks (202) are both located inside the precision adjustment ring (501) and are inverted with each other; the cylinder (502) is mounted on the inner side wall of the precision adjustment ring (501); the rolling column (503) is rotatably mounted on the end of the telescopic rod of the cylinder (502); and a scale for observing the telescopic distance of the cylinder (502) is provided on one side of the simulation concave disk (102) close to the cover plate (103); The driving arc surface (504) has an arc that gradually increases from one end to the other end. The driving arc surface (504) is arranged on the side wall of the plate fault simulation block (202) close to the end of the precision adjustment ring (501). The driving arc surfaces (504) on the two plate fault simulation blocks (202) are arranged diagonally, and the rolling column (503) is in rolling contact with the driving arc surface (504).

4. The geological fault simulation device according to claim 1, characterized in that: The sealing mechanism comprises a steel wire rope (707) and a rope groove (702); a rope groove (702) is provided on a side of the side wall of the plate fault simulation block (202) close to the sealing strip (701); and the steel wire rope (707) passes through the rope groove (702); A deformation expansion groove (703) is provided on one side of the sealing strip (701) close to the rope groove (702); a first movable groove (704) is provided on one side of the side wall of the plate fault simulation block (202) close to the sealing strip (701); a filling block (705) is slidably installed inside the first movable groove (704); the filling block (705) is embedded in the deformation expansion groove (703); a rope hole (706) is provided inside the filling block (705); the steel wire rope (707) passes through the rope hole (706); when the steel wire rope (707) is tightened, the steel wire rope (707) drives the filling block (705) to move toward the deformation expansion groove (703) and squeeze the sealing strip (701) outwards; when the steel wire rope (707) is relaxed, the sealing strip (701) drives the filling block (705) in the deformation expansion groove (703) to move toward the first movable groove (704).

5. The geological fault simulation device according to claim 4, characterized in that: The starting end of the steel wire rope (707) passes through the starting end through hole (801) and is connected to a starting fixed knot (802), and the tail end (807) of the steel wire rope is connected to a second movable block (804); A second movable groove (803) is provided inside the plate fault simulation block (202), and the second movable block (804) is slidably assembled in the second movable groove (803). A driving threaded hole (805) is provided on the second movable block (804). A control through hole is also provided on the side wall of the plate fault simulation block (202), and a driving member (806) is assembled in the control through hole. The driving member (806) is connected to the driving threaded hole (805), and the driving member (806) drives the second movable block (804) to move in the second movable groove (803) to tighten or loosen the steel wire rope (707).

6. The geological fault simulation device according to claim 2, characterized in that: The simulation concave disc (102) is provided with an adjustment mechanism for adjusting the shape of the reservoir simulation hose (301), the adjustment mechanism comprising a plurality of adjustment components, each of the plurality of adjustment components comprising a positioning bar (401), a threaded connecting rod (402), a bellows (403), a first adjustment through hole (404), a second adjustment through hole (405) and a nut (406); The positioning strip (401) is located on the inner surface of the opening side of the simulation concave disk (102) and is in contact with the reservoir simulation hose (301); the first adjustment through hole (404) and the second adjustment through hole (405) are respectively arranged on the lateral displacement plate (201) and the simulation concave disk (102) and are aligned and extend in the vertical direction; one end of the threaded connecting rod (402) is connected to the positioning strip (401), and the other end passes through the first adjustment through hole (404) and the second adjustment through hole (405). The nut (406) is assembled after the hole (405), the nut (406) is located on the back of the simulation concave disk (102) and abuts against it, and the bellows (403) is arranged between the positioning bar (401) and the lateral displacement plate (201); the position of the threaded connecting rod (402) in the vertical direction is adjusted by using the nut (406), so that the positioning bar (401) moves in the vertical direction to squeeze the reservoir simulation hose (301), thereby adjusting the shape of the reservoir simulation hose (301).

7. The geological fault simulation device according to claim 2, characterized in that: A first strong magnet (205) is embedded and installed on the back side of the lateral displacement plate (201), and a second strong magnet (206) adapted to the first strong magnet (205) is installed on the back side of the simulated concave disk (102).

8. The geological fault simulation device according to claim 1, characterized in that: A plurality of sealing air bags (601) are arranged between the bottoms of the two plate fault simulation blocks (202), and fault through holes (302) are provided through the side walls of the two plate fault simulation blocks (202) at the close ends. The fault through holes (302) are connected to the inside of the reservoir simulation hose (301) through a fault connection pipe (303).

9. The geological fault simulation device according to claim 1, characterized in that: The cover plate (103) is a transparent cover plate (103), and a side clamping plate (104) is fixedly mounted on the edge of the transparent cover plate (103). The transparent cover plate (103) is interference-fitted with the outer side wall of the simulated concave disk (102) via the side clamping plate (104).

10. A geological fault simulation method according to the geological fault simulation device according to any one of claims 1 to 9, characterized in that: It includes a fault fixing and filling step and a geological fault driving simulation step; The fault fixing and filling step comprises the following steps: S11, fault fixing: flip the simulation concave plate (102) to a horizontal state, use the sliding assembly to adjust the two plate fault simulation blocks (202) to a suitable position, then adjust the shape of the reservoir simulation hose (301) therein and fix the adjusted shape; S12, filling the simulation hose: filling the reservoir simulation hose (301) with rock formation simulation particles, and closing the cover plate (103) on the simulation concave plate (102), sealing the cover plate (103) and the plate fault simulation block (202) with a sealing mechanism, and sealing the bottom of the gap between the two plate fault simulation blocks (202); The geological fault driving simulation step comprises the following steps: S21, simulating fault filling: rotating the simulated concave disk (102) to a vertical state, and filling particles of corresponding diameter from above the plate fault simulation block (202) to between two plate fault simulation blocks (202), so as to simulate the filling of the fault; S22, fault drive simulation: after the simulated fault is filled, particles of different sizes are laid on the plate fault simulation block (202) to simulate different geological rock layers; and then the plate fault simulation block (202) is roughly adjusted using the adjustment component to make the two plate fault simulation blocks (202) overlap with each other to simulate the formation of a geological fault; S23, fine fault adjustment: finely adjusting the plate fault simulation block (202) using an adjustment component; S24, simulated gas expulsion between fault particles, simulation test of corresponding angle faults and corresponding angle shape reservoir sealing.

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