A compression-shear and tension-shear structural system simulation device

Abstract

This invention discloses a simulation device for compression-torsion and tension-torsion tectonic systems, relating to the field of petroleum and natural gas geology. The invention includes a support platform and several plexiglass rods arranged side-by-side on the support platform. Longitudinal constraint components are arranged on the front and rear sides of each plexiglass rod, and transverse constraint components are arranged on the front and rear sides of each plexiglass rod. The longitudinal and transverse constraint components form a deformable parallelogram constraint component. A longitudinal drive mechanism is provided on the support platform to drive the parallelogram constraint component and induce longitudinal deformation of the plexiglass rods. A transverse compression mechanism is also provided on the support platform to laterally compress the plexiglass rods. This invention has the advantages of simple structure, reasonable design, and the ability to accurately simulate compression-torsion and tension-torsion tectonic systems within a craton through the longitudinal drive mechanism and transverse compression mechanism, thus solving the problem of the inability to simulate strike-slip fracture systems within a craton.

Description

Technical Field

[0001] This invention relates to the field of petroleum and natural gas geology, and more specifically to the field of simulation devices for compression-torsion and tension-torsion tectonic systems. Background Technology

[0002] For oil and gas exploration and development, compressional-torsional and extensional-torsional faults play a crucial role in controlling the formation of reservoirs and oil and gas traps in fault-controlled oil and gas reservoirs. However, how to simulate the formation process of compressional-torsional and extensional-torsional structural systems within a craton using physical simulation methods has always been a challenge and a key focus in oil and gas exploration.

[0003] Structural physics simulation devices are instruments used in geology to simulate the deformation of underground structures. They can simulate the morphology and deformation process of existing structures through physical means, which is of great significance for structural interpretation schemes and structural modeling of underground seismic data, and also plays an important role in geological scientific research and teaching. However, previous structural physics simulation devices and related patent technologies have not specifically included devices and related inventions for simulating compression-torsion and tension-torsion structural systems within cratons. Therefore, there is an urgent need to invent a physical simulation device for compression-torsion and tension-torsion structural systems to simulate the rationality of underground compression-torsion and tension-torsion structural systems and understand their structural deformation formation process. This is crucial for reservoir development and trap identification in fault-controlled oil and gas reservoirs in oil and gas exploration, as well as for geological understanding of the formation mechanism of compression-torsion and tension-torsion structural systems within cratons.

[0004] Existing patents for simulating compression-torsion and tension-torsion structures mainly concern the development process of a single pure strike-slip fault, such as the patent with application number "CN201621388470.0" and patent name "Experimental Device for Physical Simulation of Strike-Slip Fault Structures".

[0005] And the patent with application number "CN201911037799.0" and patent title "A loading device and test method for bidirectional loading of indoor strike-slip faults";

[0006] And the patent with application number "CN201510200464.1" and patent name "A pressure-applied strike-slip fault displacement simulation device and simulation experiment method";

[0007] And the patent with application number "CN201811323852.9" and patent name "Experimental device and method for physical simulation of run-slip structure in hypergravity environment";

[0008] And the patent with application number "CN201721096425.2" and patent name "Physical Simulation Device for Strike-Slip Tectonics in Basins";

[0009] And the patent with application number "CN201410125687.1" and patent name "Experimental Device for Physical Simulation of Strike-Slip Structure and its Operation Method";

[0010] These patented devices only simulate single pure strike-slip faults and do not simulate compressional-torsional and tensional tectonic systems within cratons; existing tectonic physics simulation devices do not have dedicated physical model devices for simulating compressional-torsional and tensional tectonic deformation. Therefore, existing inventions do not address how to simulate underground geological conditions to reconstruct the formation process of compressional-torsional and tensional tectonic systems within cratons, nor do they address inventing a physical simulation device specifically for simulating the deformation of compressional-torsional and tensional tectonic systems.

[0011] Therefore, no physical simulation device has been invented that can simulate the compression-torsion and tension-torsion structural systems inside a craton. Summary of the Invention

[0012] The purpose of this invention is to provide a device for simulating compression-torsion and tension-torsion structures in cratons, in order to solve the problem that existing craton internal compression-torsion and tension-torsion structures cannot be simulated.

[0013] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0014] A simulation device for a compression-torsion and tension-torsion structural system includes a support platform and several plexiglass rods arranged side by side on the support platform. Longitudinal constraint components are provided on the front and rear sides of each plexiglass rod, and transverse constraint components are provided on the front and rear sides of each plexiglass rod. The longitudinal and transverse constraint components form a deformable parallelogram constraint component. A longitudinal drive mechanism is provided on the support platform to drive the parallelogram constraint component and cause the several plexiglass rods to deform longitudinally. A transverse extrusion mechanism is also provided on the support platform to laterally extrude the several plexiglass rods.

[0015] Furthermore, the longitudinal drive mechanism includes a movable base and a fixed base arranged side by side on the support platform and in edge contact, a drive mechanism for driving the movable base to move longitudinally, and several plexiglass rods arranged in two equal parts side by side on the movable base and the fixed base, with a parallelogram constraint assembly arranged on the movable base and the fixed base.

[0016] Furthermore, the number of the acrylic rods is 60, each acrylic rod is a quadrangular prism with a diameter of 0.5 x 0.5 cm and a length of 60 cm. 30 acrylic rods are arranged in a longitudinal parallel manner on a movable base, and the other 30 acrylic rods are arranged in a longitudinal parallel manner on a fixed base.

[0017] Furthermore, the longitudinal constraint component includes longitudinal constraint strips on a movable base and a fixed base respectively for defining the longitudinal position of a plurality of plexiglass rods. The longitudinal constraint strips on the movable base are provided with an inner longitudinal upper baffle, and the longitudinal constraint strips on the fixed base are provided with an outer longitudinal upper baffle.

[0018] Furthermore, both ends of the inner longitudinal upper baffle are fixed to the movable base by rivets and connecting wooden blocks, and both ends of the outer longitudinal upper baffle are fixed to the fixed base by rivets and connecting wooden blocks.

[0019] Furthermore, the lateral constraint assembly includes a left lateral constraint strip and a right lateral constraint strip located on the left and right sides of several plexiglass rods, both passing through the inner and outer longitudinal upper baffles. The inner sides of the left lateral constraint strip and the right lateral constraint strip are connected to a movable base at the point where they pass through the inner longitudinal upper baffle, and the outer sides of the left lateral constraint strip and the right lateral constraint strip are slidably connected to a fixed base through the outer longitudinal upper baffle.

[0020] Furthermore, both the inner and outer longitudinal upper baffles are provided with a central slot at the bottom, which is the same height and length as the plexiglass rod and is used to accommodate the corresponding longitudinal constraint strip. Two side slots are provided on both sides of the central slot and communicate with the central slot. The two side slots cooperate with the corresponding left and right transverse constraint strips, respectively. The length of the longitudinal constraint strip is less than the length of the central slot and the longitudinal constraint strip is located in the center of the central slot. The left and right ends of the longitudinal constraint strip are in gaps with the left and right transverse constraint strips, respectively, and the gaps are filled with modeling clay.

[0021] Furthermore, the inner longitudinal baffle is provided with an inner groove through which the arched transverse extrusion mechanism passes, located above the central slot. Furthermore, the transverse extrusion mechanism includes a lateral push plate located in contact with the parallelogram constraint assembly and the plexiglass rod, and a lateral push rod connected to the lateral push plate. The lateral push rod passes through the inner groove and is connected to a motor unit that controls the extrusion speed.

[0022] Furthermore, both the movable base and the fixed base are square blocks of the same size with their long sides in contact.

[0023] The beneficial effects of this invention are as follows:

[0024] This invention can accurately simulate compressional-torsional and tensional-torsional tectonic systems within cratons, determining the development conditions and formation processes of such structures. Strike-slip fault systems within cratons are weakly deformed, making it difficult to distinguish between strike-slip faults and basement-involved reverse or normal faults. Physical simulation is needed to clarify the formation mechanism and process of strike-slip fault systems within cratons. However, previous strike-slip fault simulation devices primarily simulated the development of individual strike-slip faults and lacked a dedicated physical simulation device for compressional-torsional and tensional-torsional tectonic systems within cratons. Therefore, the formation process and mechanism of strike-slip fault systems within cratons have remained unclear. This invention designs a dedicated physical simulation device for simulating strike-slip fault systems within cratons to address the problem of the inability to simulate strike-slip fault systems within cratons. Attached Figure Description

[0025] Figure 1 This is a perspective view of a physical simulation device for compression-torsion and tension-torsion structural systems;

[0026] Figure 2 This is a schematic diagram of the inner longitudinal upper baffle;

[0027] Figure 3 This is a schematic diagram of the structure of the outer longitudinal upper baffle;

[0028] Figure 4 It is the base of the experimental apparatus in its undeformed state;

[0029] Figure 5 It is the cross-section of the undeformed simulation device;

[0030] Figure 6 yes Figure 1 The left view;

[0031] Reference numerals: 1-Supporting platform, 2-Outer longitudinal upper baffle, 2-1-Central groove, 2-2-Side groove, 3-Longitudinal constraint strip, 4-, 5-Right transverse constraint strip, 6-Connecting wooden block, 7-Left transverse constraint strip, 8-Rivet, 9-Inner longitudinal upper baffle, 10-Inner groove, 11-Side push rod, 12-Side push plate, 13-Modible base, 14-Acrylic rod, 15-Fixed base, 16-Drive mechanism. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0036] Example 1

[0037] like Figures 1 to 5 As shown, this embodiment provides a simulation device for a compression-torsion and tension-torsion structural system, including a support platform 1 and several plexiglass rods 14 arranged side by side on the support platform 1. The plexiglass rods 14 are provided with longitudinal constraint components on their front and rear sides, and transverse constraint components are provided on their front and rear sides. The longitudinal constraint components and the transverse constraint components form a deformable parallelogram constraint component. The support platform 1 is provided with a longitudinal drive mechanism that drives the parallelogram constraint component to drive the several plexiglass rods 14 to deform longitudinally. The support platform 1 is also provided with a transverse extrusion mechanism that can transversely extrude the several plexiglass rods 14.

[0038] In this embodiment, the overall deformation of the compressional-torsional and tensional tectonic systems within the craton is weak, making it difficult to distinguish between faults formed by these structures and basement-involved reverse and normal faults. Physical simulation is needed to clarify the formation mechanism and process of these systems. However, currently, there is no dedicated physical simulation device for simulating these systems within cratons. Therefore, the formation process and mechanism of these systems remain unclear. This invention designs a dedicated physical simulation device for simulating compressional-torsional and tensional tectonic systems within cratons to solve the problem of their inability to be simulated.

[0039] Example 2

[0040] This embodiment is a further optimization based on Embodiment 1, specifically:

[0041] The longitudinal drive mechanism includes a movable base 13 and a fixed base 15 arranged side by side on the support platform 1 and in edge contact, and a drive mechanism 16 for driving the movable base 13 to move longitudinally. The drive mechanism 16 is a screw and nut drive mechanism. Several plexiglass rods 14 are arranged in two equal parts side by side on the movable base 13 and the fixed base 15. A parallelogram constraint assembly is arranged on the movable base 13 and the fixed base 15.

[0042] The number of the acrylic rods 14 is 60. Each acrylic rod 14 is a quadrangular prism with a diameter of 0.5 x 0.5 cm and a length of 60 cm. 30 acrylic rods 14 are arranged in a longitudinal parallel manner on the movable base 13, and the other 30 acrylic rods 14 are arranged in a longitudinal parallel manner on the fixed base 15.

[0043] The longitudinal constraint assembly includes longitudinal constraint strips 3 fixedly mounted on a movable base 13 and a fixed base 15 for defining the longitudinal positions of a plurality of plexiglass rods 14. The longitudinal constraint strips 3 of the movable base 13 are provided with an inner longitudinal upper baffle 9, and the longitudinal constraint strips 3 of the fixed base 15 are provided with an outer longitudinal upper baffle 2.

[0044] Both ends of the inner longitudinal upper baffle 9 are fixed to the movable base 13 by rivets 8 and connecting wooden blocks 6, and both ends of the outer longitudinal upper baffle 2 are fixed to the fixed base 15 by rivets 8 and connecting wooden blocks 6.

[0045] The lateral constraint assembly includes a left lateral constraint strip 7 and a right lateral constraint strip 5 located on the left and right sides of several plexiglass rods 14, both passing through the inner longitudinal upper baffle 9 and the outer longitudinal upper baffle 2. The inner sides of the left lateral constraint strip 7 and the right lateral constraint strip 5 are connected to a movable base 13 that passes through the inner longitudinal upper baffle 9. The outer sides of the left lateral constraint strip 7 and the right lateral constraint strip 5 pass through the outer longitudinal upper baffle 2 and are slidably connected to a fixed base 15.

[0046] Both the inner longitudinal upper baffle 9 and the outer longitudinal upper baffle 2 have a central slot 2-1 at their bottom, which is the same height and length as the plexiglass rod 14 and is used to accommodate the corresponding longitudinal constraint strip 3. Two side slots 2-2 are provided on both sides of the central slot 2-1 and communicate with it. The two side slots 2-2 respectively cooperate with the corresponding left transverse constraint strip 7 and right transverse constraint strip 5. The length of the longitudinal constraint strip 3 is less than the length of the central slot 2-1, and the longitudinal constraint strip 3 is located in the center of the central slot 2-1. The left and right ends of the longitudinal constraint strip 3 are in gaps with the left transverse constraint strip 7 and right transverse constraint strip 5, respectively, and these gaps are filled with modeling clay. The inner side of the central slot is 60cm long, the same length as the plexiglass rod, and holds the longitudinal constraint strip. The longitudinal constraint strip is 53cm long and located in the middle of the inner side of the slot. After installation, there are 3.5cm gaps on both sides between the longitudinal constraint strip and the transverse constraint strip, which are filled with modeling clay. The width of the side slots 2-2 is 1cm.

[0047] An inner groove 10 is provided on the inner longitudinal baffle 9, through which the arched transverse extrusion mechanism passes, located above the central groove 2-1. The inner groove is 40cm long and 2cm wide.

[0048] The transverse extrusion mechanism includes a lateral push plate 12 located in contact with the parallelogram constraint assembly and the plexiglass rod 14, and a lateral push rod 11 connected to the lateral push plate 12. The lateral push rod 11 passes through the inner groove 10 and is connected to a motor that can control the extrusion speed.

[0049] The movable base 13 and the fixed base 15 are both square blocks of the same size with their long sides touching. The movable base 13 and the fixed base 15 have the same length and width, both being 80cm long and 25cm wide.

Claims

1. A simulation device for compression-torsion and tension-torsion structural systems, characterized in that, The system includes a support platform (1) and several acrylic rods (14) arranged side by side on the support platform (1). The acrylic rods (14) are provided with longitudinal constraint components on their front and rear sides and transverse constraint components on their left and right sides. The longitudinal constraint components and transverse constraint components form a deformable parallelogram constraint component. The support platform (1) is provided with a longitudinal drive mechanism for driving the parallelogram constraint component to cause the several acrylic rods (14) to deform longitudinally. The longitudinal drive mechanism includes a movable base (13) and a fixed base (15) arranged side by side on the support platform (1) and in edge contact, and a drive mechanism (16) for driving the movable base (13) to move longitudinally. The several acrylic rods (14) are arranged in two equal parts side by side on the movable base (13) and the fixed base (15). The parallelogram constraint components are correspondingly arranged on the movable base (13) and the fixed base (15). The support platform (1) is also provided with a transverse extrusion mechanism that can transversely extrude the several acrylic rods (14).

2. The simulation device for compression-torsion and tension-torsion structural systems according to claim 1, characterized in that, The number of the acrylic rods (14) is 60. Each acrylic rod (14) is a quadrangular prism with a diameter of 0.5 x 0.5 cm and a length of 60 cm. 30 acrylic rods (14) are arranged in a longitudinal parallel manner on a movable base (13), and another 30 acrylic rods (14) are arranged in a longitudinal parallel manner on a fixed base (15).

3. The simulation device for compression-torsion and tension-torsion structural systems according to claim 2, characterized in that, The longitudinal constraint assembly includes longitudinal constraint strips (3) that are fixedly mounted on the movable base (13) and the fixed base (15) to define the longitudinal position of a plurality of plexiglass rods (14). The longitudinal constraint strips (3) of the movable base (13) are provided with an inner longitudinal upper baffle (9), and the longitudinal constraint strips (3) of the fixed base (15) are provided with an outer longitudinal upper baffle (2).

4. The simulation device for compression-torsion and tension-torsion structural systems according to claim 3, characterized in that, Both ends of the inner longitudinal upper baffle (9) are fixed to the movable base (13) by rivets and connecting wooden blocks (6), and both ends of the outer longitudinal upper baffle (2) are fixed to the fixed base (15) by rivets and connecting wooden blocks (6).

5. The simulation device for compression-torsion and tension-torsion structural systems according to claim 3, characterized in that, The lateral constraint assembly includes a left lateral constraint strip (7) and a right lateral constraint strip (5) located on the left and right sides of several plexiglass rods (14), both passing through the inner longitudinal upper baffle (9) and the outer longitudinal upper baffle (2). The inner sides of the left lateral constraint strip (7) and the right lateral constraint strip (5) pass through the inner longitudinal upper baffle (9) and are hinged to the movable base (13). The outer sides of the left lateral constraint strip (7) and the right lateral constraint strip (5) pass through the outer longitudinal upper baffle (2) and are slidably connected to the fixed base (15).

6. The simulation device for compression-torsion and tension-torsion structural systems according to claim 5, characterized in that, The bottom of the inner longitudinal upper baffle (9) and the outer longitudinal upper baffle (2) are provided with a central slot (2-1) of the same height and length as the plexiglass rod (14) and used to accommodate the corresponding longitudinal constraint strip (3). Two side slots (2-2) are provided on both sides of the central slot (2-1) and connected to the central slot (2-1). The two side slots (2-2) are respectively matched with the corresponding left transverse constraint strip (7) and right transverse constraint strip (5). The length of the longitudinal constraint strip (3) is less than the length of the central slot (2-1) and the longitudinal constraint strip (3) is located in the center of the central slot (2-1). There are gaps between the left and right ends of the longitudinal constraint strip (3) and the left transverse constraint strip (7) and the right transverse constraint strip (5), respectively. The gaps are filled with modeling clay.

7. The simulation device for compression-torsion and tension-torsion structural systems according to claim 6, characterized in that, The inner longitudinal upper baffle (9) is provided with an inner groove (10) located above the central slot (2-1) for the transverse extrusion mechanism to pass through.

8. The simulation device for compression-torsion and tension-torsion structural systems according to claim 7, characterized in that, The transverse extrusion mechanism includes a lateral push plate (12) located in contact with the parallelogram constraint assembly and the plexiglass rod (14), and a lateral push rod (11) connected to the lateral push plate (12). The lateral push rod (11) passes through the inner groove (10) and is connected to a motor that can control the extrusion speed.

9. The simulation device for compression-torsion and tension-torsion structural systems according to claim 1, characterized in that, The movable base (13) and the fixed base (15) are both square blocks of the same size with their long sides in contact.

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