Geologic fault simulation apparatus and method

Abstract

The application discloses a geological fault simulation device and method, relates to the technical field of geological simulation, and comprises a supporting seat, a simulation concave disc, plate block fault simulation blocks, a reservoir simulation hose and a cover plate. The simulation concave disc is rotatably installed on the supporting seat, the plate block fault simulation blocks are assembled inside the opening side of the simulation concave disc and are provided with two, the reservoir simulation hose is installed in the plate block fault simulation blocks and is adjustable in shape, and the cover plate is arranged on the opening side of the simulation concave disc. The sliding assembly, the adjusting assembly and the sealing mechanism are arranged, the simulation process can be finely adjusted by the adjusting assembly, the plate block fault simulation blocks can be highly sealed by the sealing mechanism, the plate block fault simulation blocks can be highly flexibly adjusted by the sliding assembly and the adjusting assembly, the fine adjustment can be realized in the fault simulation process, and the combination of high sealing performance and high flexible adjustment performance can be simultaneously satisfied.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geological simulation, more particularly to a geological fault simulation device and method. BACKGROUND

[0002] The three types of faults in nature give rise to complex fault systems, which vary greatly in scale, from the small-scale faulting of rock layers to the large-scale oceanic ridges that span across oceans. Oil is generated 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 can cause the hanging wall to subside, which is conducive to the accumulation of sediments. Over time, the organic matter in the basin sediments is continuously compacted by the overlying new sediments, and under certain temperature and pressure conditions, it becomes oil or natural gas. In addition to energy resources, faults are also closely related to the distribution of metal mineral resources and water resources. Fault zones provide space for the flow of sedimentary metal hydrothermal fluids or groundwater. After recognizing the existence of faults, water or other resources can be sought along the distribution of faults.

[0003] In the prior art, the geological fault simulation method can help people quickly understand the fault state and changes, and predict the location and trend of resources. However, the existing geological fault simulation device cannot achieve fine adjustment during fault simulation, and cannot simultaneously satisfy the combination of high sealing performance and high flexible adjustment performance. SUMMARY

[0004] In order to overcome the defects in the prior art, the present application discloses a geological fault simulation device and method. The purpose of the present application is to solve the problem that the prior art cannot achieve fine adjustment during fault simulation, and cannot simultaneously satisfy the combination of high sealing performance and high flexible adjustment performance. The present application sets up a sliding assembly, an adjusting assembly and a sealing mechanism. The adjusting assembly can be used to finely adjust the simulation process, the sealing mechanism can be used to highly seal the plate fault simulation block, and the sliding assembly and the adjusting assembly can be used to highly flexibly adjust the plate fault simulation block. In addition, the present application can finely adjust the position of the plate fault simulation block. The driving cam and the plate fault simulation block are driven in a way that causes very small pushing force, which can achieve fine dynamic adjustment of the geological fault simulation. After adjustment, the transverse displacement plate can be effectively fixed. The present application can effectively improve the sealing performance of the simulation fault bottom.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A geological fault simulation device, comprising a support seat, a simulation concave disc, a plate fault simulation block, a reservoir simulation hose and a cover plate.

[0007] The simulation concave disc is rotatably installed on the support base, the plate block fault simulation blocks are assembled inside the opening side of the simulation concave disc and are provided with two, the reservoir simulation soft tubes are installed in the plate block fault simulation blocks and are adjustable in shape, and the cover plate is arranged on the opening side of the simulation concave disc;

[0008] The simulation concave disc is provided with an adjusting mechanism for adjusting the horizontal and vertical positions of the plate block fault simulation blocks, the adjusting mechanism comprises a sliding assembly and an adjusting assembly for driving the plate block fault simulation blocks to horizontally and vertically move on the sliding assembly and coarsely and finely adjust the horizontal and vertical movement;

[0009] The plate block fault simulation blocks are provided with sealing strips, the sealing strips are provided with sealing mechanisms, the sealing mechanisms have two states of being taut and being relaxed, when being taut, the friction between the sealing strips and the cover plate is increased to tightly seal the two, when being relaxed, the friction between the sealing strips and the cover plate is reduced to adjust the positions of the plate block fault simulation blocks.

[0010] Preferably, the sliding assembly comprises a horizontal displacement plate, a horizontal sliding groove, a horizontal sliding block and a vertical sliding rail sliding groove;

[0011] The horizontal sliding block is fixedly arranged on the inner surface of the opening side of the simulation concave disc, the horizontal displacement plate is slidably assembled on the horizontal sliding block through the horizontal sliding groove in the horizontal displacement plate, and the plate block fault simulation blocks are slidably assembled on the horizontal displacement plate through the vertical sliding rail sliding groove.

[0012] Preferably, the adjusting assembly comprises a fine adjustment ring, a cylinder, a rolling column and a driving camber;

[0013] The fine adjustment ring is rotatably installed on the inner side wall of the opening side of the simulation concave disc, the two plate block fault simulation blocks are located inside the fine adjustment ring and are inverted relative to each other, the cylinder is installed on the inner side wall of the fine adjustment ring, the rolling column is rotatably installed on the end of the telescopic rod of the cylinder, and the side of the simulation concave disc close to the cover plate is provided with a scale for observing the telescopic distance of the cylinder;

[0014] The driving camber gradually increases in camber from one end to the other end, the driving camber is arranged on the side wall of the plate block fault simulation block close to the fine adjustment ring, the driving cambers on the two plate block fault simulation blocks are diagonally arranged, and the rolling column is in rolling contact with the driving camber.

[0015] Preferably, the sealing mechanism comprises a steel wire rope and a rope groove, the rope groove is arranged on the side wall of the plate block fault simulation block close to the sealing strip, and the steel wire rope passes through the rope groove;

[0016] The side close to the rope groove of the sealing strip is provided with a deformation expansion groove, the side wall of the plate block fault simulation block is provided with a first movable groove close to the sealing strip, a filling block is slidably installed in the first movable groove, the filling block is embedded in the deformation expansion groove, a rope hole is arranged in the filling block, the steel wire rope passes through the rope hole, and the steel wire rope drives the filling block to move to the deformation expansion groove and extrude the sealing strip outward when the steel wire rope is tightened, and the sealing strip drives the filling block in the deformation expansion groove to move to the first movable groove when the steel wire rope is relaxed.

[0017] 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.

[0018] The plate block fault simulation block is internally provided with a second movable groove, the second movable block is slidably assembled in the second movable groove, a driving screw hole is arranged on the second movable block, a control through hole is further arranged on the side wall of the plate block fault simulation block, a driving piece is assembled in the control through hole, the driving piece is connected with the driving screw hole, the driving piece drives the second movable block to move in the second movable groove, and the steel wire rope is tightened or relaxed.

[0019] Preferably, the simulation concave disc is provided with an adjusting mechanism for adjusting the shape of the reservoir simulation hose, the adjusting mechanism comprises a plurality of adjusting assemblies, and each adjusting assembly comprises a positioning strip, a threaded connecting rod, a corrugated pipe, a first adjusting through hole, a second adjusting through hole and a nut.

[0020] The positioning strip is located on the inner surface of the opening side of the simulation concave disc and in contact with the reservoir simulation hose, the first adjusting through hole and the second adjusting through hole are arranged on the lateral displacement plate and the simulation concave disc respectively and are aligned and extend in the vertical direction, one end of the threaded connecting rod is connected with the positioning strip, the other end passes through the first adjusting through hole and the second adjusting through hole and is assembled with the nut, the nut is located on the back surface of the simulation concave disc and abuts against the simulation concave disc, and the corrugated pipe is arranged between the positioning strip and the lateral displacement plate; the position of the threaded connecting rod in the vertical direction is adjusted by the nut, the positioning strip moves in the vertical direction to extrude the reservoir simulation hose, and the shape of the reservoir simulation hose is adjusted.

[0021] Preferably, the back surface of the lateral displacement plate is embedded and mounted with a first strong magnet, and the back surface of the simulation concave disc is mounted with a second strong magnet matched with the first strong magnet.

[0022] Preferably, a plurality of sealing air bags are arranged between the bottoms of the two plate block fault simulation blocks, a fault through hole is arranged through the side wall of the close end of each plate block fault simulation block, and the fault through hole is communicated with the inside of the reservoir simulation hose through a fault connecting pipe.

[0023] Preferably, the cover plate is a transparent cover plate, and the edge of the transparent cover plate is fixedly provided with a side clamping plate, and the transparent cover plate is in interference fit with the outer side wall of the simulation concave disc through the side clamping plate.

[0024] Based on the geological fault simulation device, the application further provides a geological fault simulation method, which comprises a fault fixing and filling step and a geological fault driving simulation step.

[0025] The fault fixing and filling step comprises the following steps.

[0026] S11, fault fixing: the simulation concave disc is turned to a horizontal state, the two plate fault simulation blocks are adjusted to a suitable position by using the sliding assembly, the shape of the reservoir simulation hose is adjusted and the adjusted shape is fixed;

[0027] S12, simulation hose filling: the reservoir simulation hose is filled with rock layer simulation particles, the cover plate is covered on the simulation concave disc, the cover plate and the plate fault simulation blocks are sealed by using the sealing mechanism, and the gap between the two plate fault simulation blocks is sealed.

[0028] The geological fault driving simulation step comprises the following steps.

[0029] S21, simulation fault filling: the simulation concave disc is rotated to a vertical state, and the particles with a corresponding diameter are filled between the two plate fault simulation blocks from above the plate fault simulation blocks to simulate the filling of the fault;

[0030] S22, fault driving simulation: after the simulation fault filling is completed, the particles with different sizes are laid on the plate fault simulation blocks to simulate different geological rock layers, the plate fault simulation blocks are coarsely adjusted by using the adjusting assembly, the two plate fault simulation blocks are matched with each other to simulate the formation of the geological fault.

[0031] S23, fine fault adjustment: the plate fault simulation blocks are finely adjusted by using the adjusting assembly.

[0032] S24, simulation of gas discharge between the particles of the simulation fault, simulation test of the sealing property of the corresponding angle fault and the corresponding angle shape reservoir.

[0033] Advantages of the application:

[0034] 1. The geological fault simulation device can finely adjust the simulation process by using the adjusting assembly, can highly seal the plate fault simulation blocks by using the sealing mechanism, can highly flexibly adjust the plate fault simulation blocks by using the sliding assembly and the adjusting assembly, and can adjust the shape of the reservoir simulation hose by using the adjusting mechanism, so that the fine adjustment in the fault simulation process can be realized, and the combination of high sealing property and high flexible adjustment performance can be met.

[0035] 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, causing extremely small driving force on the driving arc surface and the plate fault simulation block, which can realize 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 force of the expanded sealing airbag from rebounding the adjusted lateral displacement plate position. 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 near the transparent cover plate, which is convenient for observing the moving position of the cylinder relative to the scale, making observation convenient and capable of more fine displacement control of the plate fault simulation block.

[0036] 3. During the geological fault simulation operation, the transparent cover plate and the plate fault simulation block fit tightly together, ensuring a good seal between the simulated fault and preventing liquid leakage or air infiltration. However, this also causes excessive friction on the plate fault simulation block, preventing smooth adjustment of the plate fault simulation block. In the present invention, an initial fixed knot secures one end of the wire rope. A driving member rotates from the bottom of the plate fault simulation block, driving the second movable block to vertically displace and slide within the second movable groove, achieving two states of tension and relaxation for the wire rope. In the tensioned state, the filler block fits tightly against the deformation expansion groove, increasing friction between the rubber sealing strip and the transparent cover plate and achieving a good sealing effect. In the relaxation state, the filler block, under load, easily displaces toward the first movable groove, minimizing friction between the rubber sealing strip and the transparent cover plate. This facilitates position adjustment of the plate fault simulation block and facilitates adjustments to the simulation state during the later stages of the geological fault simulation. This makes the geological fault simulation more flexible and capable of simulating further geological dynamic changes after the geological fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall orthographic structure of the geological fault simulation device of the present invention;

[0038] Figure 2 This is a rear oblique structural diagram of the geological fault simulation device of the present invention;

[0039] Figure 3 The geological fault simulation device of the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0040] Figure 4 A schematic side cross-sectional structural diagram of the positioning bar area of ​​the geological fault simulation device of the present invention;

[0041] Figure 5 This is a schematic side cross-sectional structural diagram of the rubber sealing strip area of ​​the geological fault simulation device of the present invention;

[0042] Figure 6 This 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.

[0043] Reference numerals:

[0044] 101. Support seat; 102. Simulation concave plate; 103. Cover plate; 104. Side clamping plate; 201. Horizontal displacement plate; 202. Plate fault simulation block; 203. Horizontal slide; 204. Horizontal 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

[0045] The following will provide a clear and complete description of the concept, specific structure and technical effects of the present invention in conjunction with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present invention.

[0046] Example 1

[0047] A geological fault simulation device, such as Figure 1 As shown, it includes a support base 101, a simulation concave plate 102, a plate fault simulation block 202, a reservoir simulation hose 301 and a cover plate 103;

[0048] The simulation concave disc 102 is rotatably mounted on the support base 101. Two plate fault simulation blocks 202 are assembled inside the opening side of the simulation concave disc 102. The reservoir simulation hose 301 is installed in the plate fault simulation block 202 and its shape is adjustable. The cover plate 103 is covered on the opening side of the simulation concave disc 102.

[0049] 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. The adjustment mechanism includes a sliding assembly and an adjustment assembly for driving the plate fault simulation block 202 to move horizontally and vertically on the sliding assembly and performing coarse and fine adjustments on the horizontal and vertical movements.

[0050] 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 of tension and relaxation. When the sealing mechanism is in tension, the friction between the sealing strip 701 and the cover plate 103 is increased to tightly seal the two. When the sealing mechanism is in relaxation, the friction between the sealing strip 701 and the cover plate 103 is reduced to adjust the position of the plate fault simulation block 202.

[0051] In the embodiment, the support seat 101 is used for supporting the simulation device; the simulation concave disc 102 is used for mounting the plate fault simulation block 202; the plate fault simulation block 202 is used for simulating a plate fault; the reservoir simulation hose 301 is used for simulating a reservoir; and the cover plate 103 is used for covering the simulation concave disc 102 and sealing the plate fault simulation block 202.

[0052] In the embodiment, the sliding assembly, the adjusting assembly and the sealing mechanism are provided, the simulation process can be finely adjusted by the adjusting assembly, the plate fault simulation block 202 can be highly sealed by the sealing mechanism, and the plate fault simulation block 202 can be highly flexibly adjusted by the sliding assembly and the adjusting assembly. Therefore, the geological fault simulation device provided in the embodiment can realize fine adjustment in the fault simulation process, and can simultaneously meet the combination of high sealing performance and high flexible adjustment performance.

[0053] Embodiment 2

[0054] The embodiment is further described on the basis of the embodiment 1. As shown in Figure 1 The sliding assembly includes a horizontal displacement plate 201, a horizontal sliding groove 203, a horizontal sliding block 204 and a vertical sliding rail sliding groove 505. The horizontal sliding block 204 is fixedly arranged on the inner surface of the opening side of the simulation concave disc 102. The horizontal displacement plate 201 is slidably assembled on the horizontal sliding block 204 through the horizontal sliding groove 203 in the horizontal displacement plate 201. The plate fault simulation block 202 is slidably assembled on the horizontal displacement plate 201 through the vertical sliding rail sliding groove 505.

[0055] In the embodiment, the horizontal displacement plate 201, the horizontal sliding groove 203 and the horizontal sliding block 204 can be used to realize the horizontal displacement of the plate fault simulation block 202. The vertical sliding rail sliding groove 505 can be used to realize the vertical displacement of the plate fault simulation block 202.

[0056] As shown in Figure 1 The adjusting assembly includes a precise adjusting ring 501, a gas cylinder 502, a rolling column 503 and a driving camber 504.

[0057] The precision adjusting ring 501 is rotatably installed on the inner side wall of the opening side of the simulation concave disc 102, the two plate fault simulation blocks 202 are located inside the precision adjusting ring 501 and are inverted to each other, the air cylinder 502 is installed on the inner side wall of the precision adjusting ring 501, the rolling column 503 is rotatably installed on the end of the telescopic rod of the air cylinder 502, and the simulation concave disc 102 is provided with a scale for observing the telescopic distance of the air cylinder 502 on the side close to the cover plate 103.

[0058] The driving camber 504 gradually increases in camber from one end to the other end, the driving camber 504 is arranged on the side wall of the plate fault simulation block 202 close to the precision adjusting ring 501, the driving cambers 504 on the two plate fault simulation blocks 202 are diagonally arranged, and the rolling column 503 is in rolling contact with the driving camber 504.

[0059] As shown in Figure 1 and 2 , the back surface of the transverse displacement plate 201 is embeddedly installed with the first strong magnet 205, and the back surface of the simulation concave disc 102 is installed with the second strong magnet 206 matched with the first strong magnet 205.

[0060] In the embodiment, when adjusting, the driving air cylinder 502 operates, the rolling column 503 is rolled on the camber of the driving camber 504 under the thrust, can cause the transverse and vertical thrust to the plate fault simulation block 202, and makes the two plate fault simulation blocks 202 fit each other, to simulate the formation of the geological fault.

[0061] The mechanical driving control precision of the position of the plate fault simulation block 202 is low, the driving camber 504 is the driving camber 504 gradually increasing in camber from one end to the other end, when the position of the plate fault simulation block 202 needs to be finely adjusted, the precision adjusting ring 501 is manually rotated, and then the rolling column 503 is rolled on the camber of the driving camber 504, to cause very small thrust to the driving camber 504 and the plate fault simulation block 202, to realize the fine dynamic adjustment of the geological fault simulation.

[0062] After the adjustment is completed, the second strong magnet 206 is adsorbed on the area close to the first strong magnet 205 behind the simulation concave disc 102, to achieve the fixing effect of the transverse displacement plate 201.

[0063] Embodiment 3

[0064] The embodiment is further described on the basis of the embodiment 2, as shown in Figure 1 and 5As shown, the sealing mechanism includes a steel wire rope 707 and a rope groove 702, the rope groove 702 is arranged on 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; the side of the sealing strip 701 close to the rope groove 702 is provided with a deformation expansion groove 703, the side wall of the plate fault simulation block 202 close to the sealing strip 701 is provided with a first movable groove 704, the first movable groove 704 is internally slidably provided with a filling block 705, the filling block 705 is simultaneously embedded in the inside of the deformation expansion groove 703, the filling block 705 is internally provided with a rope hole 706, the steel wire rope 707 passes through the rope hole 706, and the steel wire rope 707 drives the filling block 705 to move to the deformation expansion groove 703 and extrude the sealing strip 701 outward when being tightened, and the sealing strip 701 drives the filling block 705 in the deformation expansion groove 703 to move to the first movable groove 704 when the steel wire rope 707 is relaxed.

[0065] As shown in Figure 1 and 6 As shown, the starting end of the steel wire rope 707 passes through a starting end through hole 801 and is connected with a starting fixed rope knot 802, and a tail end 807 of the steel wire rope is connected with a second movable block 804; the plate fault simulation block 202 is internally provided with a second movable groove 803, the second movable block 804 is slidably arranged in the second movable groove 803, the second movable block 804 is provided with a driving screw hole 805, and the side wall of the plate fault simulation block 202 is further provided with a control through hole, a driving piece 806 is arranged in the control through hole, the driving piece 806 is connected with the driving screw hole 805, the driving piece 806 drives the second movable block 804 to move in the second movable groove 803, and the steel wire rope 707 is tightened or relaxed.

[0066] In the embodiment, the driving piece 806 is a screw. The starting fixed rope knot 802 fixes one end of the steel wire rope 707, 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 vertically displace and slide in the second movable groove 803 by using the thread, so that the two states of the steel wire rope 707 being tightened and relaxed are realized.

[0067] In the tightened state, the filling block 705 is closely combined 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. In the process of geological fault simulation operation, the cover plate 103 is closely combined with the plate fault simulation block 202, so that the simulated fault has good sealing performance, liquid cannot be seeped outwards or air cannot be seeped inwards, and meanwhile, the plate fault simulation block 202 cannot be effectively and smoothly adjusted due to too large friction.

[0068] In the relaxed state, the filling block 705 is easily displaced in the direction of the first movable slot 704 after being stressed, the friction between the rubber sealing strip 701 and the transparent cover plate 103 is small, the position adjustment of the plate fault simulation block 202 is facilitated, the simulation state adjustment change in the post-operation of the geological fault simulation is facilitated, the geological fault simulation is more flexible, and the further geological dynamic change state after the geological fault simulation can be simulated.

[0069] Embodiment 4

[0070] The embodiment is further described based on the embodiment 3, as shown in Figure 1 、 2 , 3 and 4, the adjusting mechanism for adjusting the shape of the reservoir simulation hose 301 is arranged on the simulation concave disc 102, the adjusting mechanism comprises a plurality of adjusting assemblies, each of the adjusting assemblies comprises a positioning strip 401, a threaded connecting rod 402, a corrugated pipe 403, a first adjusting through hole 404, a second adjusting through hole 405 and a nut 406;

[0071] The positioning strip 401 is located on the inner surface of the opening side of the simulation concave disc 102 and in contact with the reservoir simulation hose 301, the first adjusting through hole 404 and the second adjusting through hole 405 are arranged on the lateral displacement plate 201 and the simulation concave disc 102 respectively and are aligned, and extend in the vertical direction, one end of the threaded connecting rod 402 is connected with the positioning strip 401, the other end passes through the first adjusting through hole 404 and the second adjusting through hole 405 and is assembled with the nut 406, the nut 406 is located on the back surface of the simulation concave disc 102 and abuts against the simulation concave disc 102, and the corrugated pipe 403 is arranged between the positioning strip 401 and the lateral displacement plate 201; the position of the threaded connecting rod 402 in the vertical direction is adjusted by the nut 406, so that the positioning strip 401 moves in the vertical direction and presses the reservoir simulation hose 301, and the shape of the reservoir simulation hose 301 is adjusted.

[0072] In the embodiment, the shape of the reservoir simulation hose 301 can be adjusted by the adjusting mechanism. The nut 406 is loosened, the position of the positioning strip 401 is manually adjusted to control the shape of the reservoir simulation hose 301, the nut 406 is tightened after the adjustment, the friction between the nut 406 and the simulation concave disc 102 is increased, and the threaded connecting rod 402, the positioning strip 401 and the reservoir simulation hose 301 are sequentially fixed, so that the shape of the reservoir simulation hose 301 is fixed.

[0073] Embodiment 5

[0074] The embodiment is further described based on the embodiment 4, as shown in Figure 1As shown, a plurality of sealed air bags 601 are arranged between the bottoms of the two plate fault simulation blocks 202, and a fault through hole 302 is arranged through the side wall of the approaching end of the two plate fault simulation blocks 202, and the fault through hole 302 is in communication with the inside of the reservoir simulation hose 301 through a fault connection pipe 303. By arranging the sealed air bag 601, the sealed air bag 601 seals the gap between the two plate fault simulation blocks 202.

[0075] As shown in the figure, Figure 1 As shown, the cover plate 103 is a transparent cover plate 103, and the edge of the transparent cover plate 103 is fixedly installed with a side clamping plate 104, and the transparent cover plate 103 is in interference fit with the outer side wall of the simulation concave disc 102 through the side clamping plate 104.

[0076] Embodiment 6

[0077] A geological fault simulation method, comprising the following steps:

[0078] Step one, fault fixed filling:

[0079] S11, fault fixing: Turn over the simulation concave disc 102 to the horizontal state, adjust the two plate fault simulation blocks 202 to the appropriate position by using the vertical sliding rail sliding groove 505, the horizontal sliding groove 203 and the horizontal sliding block 204, manually adjust the position of the positioning strip 401 to control the shape of the reservoir simulation hose 301, and then tighten the nut 406 to increase the friction between the nut 406 and the simulation concave disc 102, so as to fix the threaded connection 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.

[0080] S12, simulation hose filling: Fill the rock layer simulation particles into the inside of the reservoir simulation hose 301, fix the transparent cover plate 103 on the simulation concave disc 102 by using the side clamping plate 104, so that the transparent cover plate 103 and the side wall of the plate fault simulation block 202 are mutually attached, the rubber sealing strip 701 is extruded to play a sealing effect, and the sealed air bag 601 is inflated by using the external pipe and the inflation device. A plurality of sealed air bags 601 with different shapes are arranged to seal the gap between the two plate fault simulation blocks 202.

[0081] Step two, geological fault driving simulation:

[0082] S21, simulation fault filling: Rotate the simulation concave disc 102 to the vertical state, fill the particles with corresponding diameters from above the plate fault simulation block 202 to between the two plate fault simulation blocks 202, so as to realize the filling of the simulation fault.

[0083] S22, fault driving simulation: after the fault filling is completed, different size particles are laid on the plate fault simulation block 202 to simulate different geological strata; the driving cylinder 502 operates, the rolling column 503 is rolled on the arc surface of the driving arc surface 504 under the thrust, which can cause the horizontal and vertical thrust to the plate fault simulation block 202, so that the two plate fault simulation blocks 202 are mutually mismatched, and the formation of the geological fault is simulated.

[0084] S23, fine fault adjustment: the mechanical driving control accuracy of the position of the plate fault simulation block 202 is low, the driving arc surface 504 is a driving arc surface 504 with gradually increasing curvature from one end to the other end, when fine adjustment of the position of the plate fault simulation block 202 is needed, the precise adjustment ring 501 is manually rotated, and then the rolling column 503 is rolled on the arc surface of the driving arc surface 504, which causes a very small thrust to the driving arc surface 504 and the plate fault simulation block 202, realizes fine dynamic adjustment of the geological fault simulation, after the adjustment is completed, the second strong magnet 206 is adsorbed on the second strong magnet 206 area behind the simulation concave disc 102 close to the first strong magnet 205, the fixing effect of the horizontal displacement plate 201 is achieved, and the rebound force of the inflation of the sealed air bag 601 is avoided; the simulation concave disc 102 is provided with a scale close to the transparent cover plate 103, which is convenient for observing the movement position of the cylinder 502 relative to the scale, convenient for observation, and can more finely control the displacement of the plate fault simulation block 202.

[0085] S24, by embedding the pipeline above the sealed air bag 601, the distilled water is injected into the bottom of the simulation fault through the embedded pipeline, the gas between the simulation fault particles is discharged, when the distilled water completely infiltrates the particles in the simulation fault and the reservoir simulation hose 301, the dyed kerosene is stably and continuously input into the bottom of the simulation fault through the embedded pipeline, the oil column height in the simulation fault increases with the transportation time, the oil moves upward along the simulation fault, and is input into the reservoir simulation hose 301 through the fault connecting pipe 303, the oil layer height and width in the single reservoir simulation hose 301 no longer changes, reaches the balance of the maximum storage capacity, and can complete the simulation test of the corresponding angle fault and the corresponding angle shape reservoir sealing property.

[0086] In the geological fault simulation operation process, the transparent cover plate 103 is closely attached to the plate fault simulation block 202, which can make the simulation fault sealing good, and will not seep out liquid or seep into air, at the same time, it will also cause the plate fault simulation block 202 to bear too much friction, so that the smooth adjustment of the plate fault simulation block 202 cannot be effectively carried out. The starting fixed knot 802 fixes one end of the steel wire rope 707, rotates the screw 806 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, realizing the two states of tension and relaxation of the steel wire rope 707. In the tension state, the filler block 705 is closely attached to 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. In the relaxation state, the filler block 705 is easy to displace in the direction of the first movable groove 704 after being stressed, and the friction between the rubber sealing strip 701 and the transparent cover plate 103 is small, which is convenient for adjusting the position of the plate fault simulation block 202. The simulation state adjustment change 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.

[0087] The above describes the embodiments of the present application, but the present application is not limited to the above-mentioned embodiments. Those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are included in the scope defined by the claims of the present application.

Claims

1. A geological fault simulation device, characterized in that: It includes a support seat (101), a simulation 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); two plate fault simulation blocks (202) are assembled inside the opening side of the simulation concave disc (102); the reservoir simulation hose (301) is installed in the plate fault simulation block (202) and its shape is adjustable; and the cover plate (103) is covered on the opening side of the simulation concave disc (102); The simulation concave disc (102) is provided with an adjustment mechanism for adjusting the horizontal 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 horizontally and vertically on the sliding component and performing rough and fine adjustment on the horizontal 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, thereby tightly sealing the two. When relaxed, the friction between the sealing strip (701) and the cover plate (103) decreases, thereby adjusting the position of the plate fault simulation block (202); The sliding assembly comprises a transverse displacement plate (201), a transverse slide groove (203), a transverse slider (204) and a vertical slide rail slide groove (505); The transverse slider (204) is fixedly arranged on the inner surface of the opening side of the simulation concave disc (102); the transverse displacement plate (201) is slidably assembled on the transverse slider (204) through the transverse sliding groove (203) inside the transverse displacement plate (201); and the plate fault simulation block (202) is slidably assembled on the transverse displacement plate (201) through the vertical sliding rail sliding groove (505); 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 cambered surface (504) gradually increases in curvature from one end to the other end. The driving cambered surface (504) is arranged on the side wall of the plate fault simulation block (202) near the end of the precision adjustment ring (501). The driving cambered surfaces (504) on the two plate fault simulation blocks (202) are arranged diagonally. The rolling column (503) is in rolling contact with the driving cambered surface (504).

2. 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), 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 embedded in the deformation expansion groove (703). A rope hole (706) is provided in the filling block (705), and the steel wire rope (707) passes through the rope hole (706). When the steel wire rope (707) is tightened, it drives the filling block (705) to move toward the deformation expansion groove (703) and squeeze the sealing strip (701) outward. 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).

3. The geological fault simulation device according to claim 2, characterized in that: The starting end of the steel 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 steel wire rope is connected to the 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 wire rope (707).

4. The geological fault simulation device according to claim 1, 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 which comprises 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 plate (102) and contacts the reservoir simulation hose (301). The first adjustment hole (404) and the second adjustment hole (405) are respectively provided on the lateral displacement plate (201) and the simulation concave plate (102). 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 hole (404) and the second adjustment 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 is 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).

5. The geological fault simulation device according to claim 1, 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 disc (102).

6. The geological fault simulation device according to claim 1, characterized in that: A plurality of sealed air bags (601) are provided 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 their close ends. The fault through holes (302) are connected to the interior of the reservoir simulation hose (301) via a fault connecting pipe (303).

7. 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 disc (102) via the side clamping plate (104).

8. A geological fault simulation method according to the geological fault simulation device according to any one of claims 1 to 7, 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 simultaneously 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, simulated fault filling: rotating the simulated concave disk (102) to a vertical state, filling particles of corresponding diameter from above the plate fault simulation block (202) to between the two plate fault simulation blocks (202), simulating 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; then, the plate fault simulation block (202) is roughly adjusted using the adjustment component to make the two plate fault simulation blocks (202) interlock with each other to simulate the formation of a geological fault; S23, fine fault adjustment: finely adjusting the plate fault simulation block (202) using the adjustment component; S24. Simulate gas expulsion between fault particles, simulate faults with corresponding angles, and simulate reservoir sealing performance with corresponding angle shapes.

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