An X-ray imaging test device for testing shear properties of fracture fluids

Abstract

The invention discloses an X-ray development test equipment for testing the shear characteristics of fracture fluid, comprising a main frame, a box body, a fixed component, a development device and two shear components, wherein the main frame comprises a top plate and a bottom plate arranged in parallel, the top plate and the bottom plate are connected by two side plates arranged at intervals, and the bottom plate is provided with a storage table; the box body is placed on the storage table and is provided with a rock block inside, the rock block is provided with a crack, and both ends of the crack are connected with a fluid pipeline for the circulation of contrast fluid; the fixed component is connected to the top plate and can move along its own axial direction; the two shear components are respectively arranged on two side plates; the development device comprises an X-ray generator and an X-ray target surface located on both sides of the box body, the development device is turned on and a developing solution is introduced, and after the developing solution maintains a linear flow state, the fixed component is started to apply a normal stress to the rock sample, and then the shear component is started to perform a compression shear test, so that the flow law of the fracture fluid inside the rock is visualized, thereby improving the accuracy of the calculation of the flow law of the fracture fluid.

Description

Technical Field

[0001] The invention relates to the technical field of fracture fluid shear testing, and in particular to an X-ray development test device for fracture fluid shear property testing. Background Art

[0002] The material composition, structural development characteristics and occurrence environment of fractured rock mass determine its mechanical behavior and permeability characteristics. The permeability characteristics of fractured rock mass are a basic scientific problem in rock mechanics. Exploring the nonlinear seepage mechanism of fluid inside fractured rock mass is of great significance to solving the problem of sudden water inrush during tunnel excavation and underground engineering construction.

[0003] The stress and water pressure changes caused by engineering disturbances will change the size and geometry of the cracks inside the rock mass, which will lead to changes in the seepage characteristics. This change is particularly prominent when the cracks are shear dislocated. The nonlinear seepage of fractured rock mass caused by engineering disturbances brings great difficulties to the accurate evaluation of seepage characteristics. Therefore, it is of great significance to study the nonlinear seepage of fractured rock mass under shear dislocation through indoor experiments.

[0004] For the shear property test of fractured fluid, the existing technical solution is mainly to develop test equipment that can control multiple test conditions to study the influence of various parameters on the seepage characteristics and the correlation between various control parameters. After obtaining data in the shear test, numerical simulation software is used to build a model to simulate the flow law of fractured fluid inside the rock mass. However, the role of numerical simulation is only to verify the completed test data and analysis results. There are errors in the calculation of the flow law of fractured fluid under shear dislocation, which cannot accurately express the shear characteristics of fractured fluid and cannot record the flow law of fractured fluid inside the rock.

[0005] Therefore, how to visualize the flow law of fracture fluid inside rocks and thus improve the accuracy of calculation of the flow law of fracture fluid is a technical problem that technicians in this field currently need to solve. Summary of the invention

[0006] The purpose of the present invention is to provide an X-ray development test device for testing the shear characteristics of fracture fluids, which can visualize the flow law of fracture fluids inside rocks, thereby improving the calculation accuracy of the flow law of fracture fluids.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An X-ray development test device for testing shear properties of fracture fluids, comprising:

[0009] The main frame includes a top plate and a bottom plate arranged in parallel, the top plate and the bottom plate are connected by two side plates arranged at intervals, and the bottom plate is provided with a storage table;

[0010] The box body is placed on the storage table and has a rock block inside. The rock block has a crack, and both ends of the crack are connected with fluid pipes for the flow of contrast fluid;

[0011] A fixing assembly connected to the top plate and capable of moving along its own axial direction to compress the box body;

[0012] Two shearing components are respectively arranged on the two side plates, and are used for shearing or holding the box body pressed by the fixing component;

[0013] The developing device comprises an X-ray generator and an X-ray target surface located on both sides of the box body, and is used for developing the contrast fluid flowing through the rock block.

[0014] Preferably, the main frame further comprises vertical tie rods and transverse tie rods. The vertical tie rods are arranged around the top plate and the bottom plate, and the transverse tie rods are arranged around the two side plates. Both the vertical tie rods and the transverse tie rods are fixed by fixing parts.

[0015] Preferably, the top plate and the bottom plate are detachably connected to the side plate via connecting pieces, and both the top plate and the side plate are provided with a first through hole and a slot, and the first through holes are evenly arranged along the circumference of the slot, and a universal wheel is provided on the side of the bottom plate away from the top plate, and the universal wheels are distributed around the bottom plate for driving the main frame to move.

[0016] Preferably, the fixed component and the shear component both include a connected telescopic component and a stress sensor, the fixed component also includes a pressure plate connected to the stress sensor, and the shear component also includes a shear module connected to the stress sensor. The stress sensors are both provided with a digital display connected to a computer to record the normal stress of the pressure plate and the horizontal shear force of the shear module in real time.

[0017] Preferably, the telescopic assembly includes a piston rod, a second through hole and a cylinder. The cylinder is inserted into the slot and fixed by the second through hole and the first through hole. The piston rod can telescope and rotate along its own axis to drive the shear module connected through the stress sensor to move.

[0018] Preferably, the stress sensor is a spoke sensor, which is provided with a third through hole and a fourth through hole whose axes are parallel to each other, the fourth through hole is evenly distributed along the circumference of the third through hole, the piston rod is provided with a fifth through hole adapted to the fourth through hole, so that the stress sensor and the piston rod can be fixed after the limit member is passed through, and the shear module is provided with a shear plug for matching and connecting with the third through hole.

[0019] Preferably, the box body further comprises a shear box and a rubber sleeve, wherein the rubber sleeve is arranged on the outside of the shear box to seal the shear box and the rock block inside the shear box, and rollers are arranged at the bottom of the box body to space the box body and the storage table.

[0020] Preferably, the fluid pipeline includes a first pipeline and a second pipeline respectively connected to the containing box and the receiving box, and a liquid pump is provided on the first pipeline to allow the contrast fluid in the containing box to flow into the crack along the first pipeline and then flow to the receiving box along the second pipeline.

[0021] Preferably, the first pipeline and the second pipeline are both provided with electromagnetic flowmeters, and the electromagnetic flowmeters are both connected to a computer to transmit contrast fluid flow information in real time.

[0022] Preferably, the contrast fluid is a barium sulfate solution.

[0023] Compared with the above-mentioned background technology, the X-ray development test equipment for testing the shear characteristics of fracture fluid provided by the present invention includes a main frame, a box body, a fixed component, a developing device and two shearing components, the main frame includes a top plate and a bottom plate arranged in parallel, the top plate and the bottom plate are connected by two side plates arranged at intervals, and the bottom plate is provided with a storage table; the box body is placed on the storage table and a rock block is arranged inside, the rock block is provided with a crack, and the two ends of the crack are connected with fluid pipelines for the circulation of contrast fluid; the fixed component is connected to the top plate and can move along its own axial direction to press the box body; the two shearing components are respectively arranged on the two side plates, for shearing or supporting the box body pressed by the fixed component; the developing device includes an X-ray generator and an X-ray target surface located on both sides of the box body, for developing the contrast fluid flowing through the rock block.

[0024] Specifically, a prefabricated rock sample is placed in the center of a storage table and connected to a fluid pipeline for the circulation of contrast fluid. An X-ray generator is deployed in front of the rock sample, and an X-ray target for receiving X-rays is arranged on the side of the rock sample away from the X-ray generator. The developing device is turned on and the developing fluid is introduced. When the developing fluid maintains a linear flow state, the fixing component is started to apply normal stress to the rock sample, and then the shear component is started to perform a compression shear test to study the shear characteristics of the fracture fluid. This arrangement can visualize the flow law of the fracture fluid inside the rock, thereby improving the accuracy of the calculation of the flow law of the fracture fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 A structural cross-sectional view of an X-ray development test device provided by an embodiment of the present invention;

[0027] Figure 2 A structural cross-sectional view of the X-ray development test equipment provided by an embodiment of the present invention from another perspective;

[0028] Figure 3 A structural cross-sectional view of a box body provided by an embodiment of the present invention;

[0029] Figure 4 A structural cross-sectional view of an X-ray development test device provided by an embodiment of the present invention when no box body is placed;

[0030] Figure 5 A front view of a main frame provided by an embodiment of the present invention;

[0031] Figure 6 A side view of a main frame provided by an embodiment of the present invention;

[0032] Figure 7 A top view of a main frame provided by an embodiment of the present invention;

[0033] Figure 8 A schematic diagram of the structure of a telescopic assembly provided in an embodiment of the present invention;

[0034] Fig. 9 A top view of a telescopic assembly provided by an embodiment of the present invention;

[0035] Fig.10 A cross-sectional view of the structure of a stress sensor provided by an embodiment of the present invention;

[0036] Fig.11 A structural cross-sectional view of a shear module provided in an embodiment of the present invention.

[0037] in:

[0038] 110-top plate, 111-first through hole, 112-slot, 120-bottom plate, 121-storage table, 122-universal wheel, 130-side plate, 140-vertical pull rod, 150-lateral pull rod, 160-fixing member, 170-connecting member;

[0039] 210-rock block, 211-crack, 220-shear box, 230-rubber sleeve, 240-roller;

[0040] 310 - containing box, 320 - storage box, 330 - first pipeline, 331 - electromagnetic flowmeter, 340 - second pipeline;

[0041] 400-fixed component, 411-piston rod, 412-second through hole, 413-oil cylinder, 414-fifth through hole, 420-stress sensor, 421-third through hole, 422-fourth through hole, 430-pressing plate;

[0042] 500- shear assembly, 510- shear module, 511- shear plug;

[0043] 610-X-ray generator, 620-X-ray target surface. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] In the description of the present invention, it is necessary to understand that the terms "front", "back", "top", "bottom", "inside", "outside", "left" and "right" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0047] The purpose of the present invention is to provide an X-ray development test device for testing the shear characteristics of fracture fluids, which can visualize the flow law of fracture fluids inside rocks, thereby improving the calculation accuracy of the flow law of fracture fluids.

[0048] To achieve the above object, the present invention provides the following technical solutions:

[0049] See also Figure 1 and Figure 2 This embodiment provides an X-ray development test device for testing the shear properties of fracture fluids, including a main frame, a box body, a fixing component 400, a development device and two shear components 500.

[0050] The main frame includes a top plate 110 and a bottom plate 120 which are arranged in parallel. The top plate 110 and the bottom plate 120 are connected by two side plates 130 which are arranged at intervals. The bottom plate 120 is provided with a storage table 121 .

[0051] In this embodiment, the storage table 121 is a rigid structure with a certain bearing capacity, and is preferably located in the middle of the base plate 120. The main frame is preferably made of Q235 steel. The material of the main frame can also be adjusted according to actual conditions as long as the above purpose can be achieved.

[0052] See also Figure 3The box body is placed on the storage table 121 and a rock block 210 is arranged inside. The rock block 210 is provided with a crack 211. Both ends of the crack 211 are connected with fluid pipes for the circulation of contrast fluid.

[0053] The diameter of the fluid conduit for the contrast fluid to flow into and out of the rock block 210 is preferably 5 mm. The diameter of the fluid conduit can be adjusted according to actual conditions as long as the above purpose can be achieved.

[0054] See also Figure 4 The fixing assembly 400 is connected to the top plate 110 and can move along its own axial direction to compress the box body.

[0055] It should be noted that the fixing component 400 is correspondingly arranged above the storage table 121 , and the box body between the fixing component 400 and the storage table 121 is fixed by the movement of the fixing component 400 for subsequent shearing by the shearing component 500 .

[0056] The two shearing assemblies 500 are respectively disposed on the two side plates 130 , and are used to shear or hold the box body compressed by the fixing assembly 400 .

[0057] It can be understood that the shearing components 500 arranged on the two side plates 130 can be close to and away from each other. When conducting relevant research under stress, the two shearing components 500 support the two sides of the box body at the same height, and then the pressure on the rock block 210 by adjusting the fixing component 400 can be obtained; when conducting relevant research under shear force, the rock block 210 is pressed by the fixing component 400, and then the two shearing components 500 are adjusted to be symmetrical about the center of the rock block 210 and then the shear force is applied toward each other.

[0058] The developing device includes an X-ray generator 610 and an X-ray target surface 620 located on both sides of the box body, and is used to develop the contrast fluid flowing through the rock block 210 .

[0059] It should be noted that the setting positions of the X-ray generator 610 and the X-ray target surface 620 are related to the position of the shearing assembly 500. Preferably, the two shearing assemblies 500 are set on the left and right sides of the rock mass, and the X-ray generator 610 and the X-ray target surface 620 are respectively set in front and behind the rock mass.

[0060] Specifically, a prefabricated rock sample is placed in the center of the storage table 121 and connected to a fluid pipeline for circulating contrast fluid. The X-ray generator 610 is deployed in front of the rock sample, and the X-ray target plate for receiving X-rays is arranged on the side of the rock sample away from the X-ray generator 610. The developing device is turned on and the developing fluid is introduced. After the developing fluid maintains a linear flow state, the fixing component 400 is started to apply normal stress to the rock sample, and then the shear component 500 is started to perform a compression shear test to study the shear characteristics of the fracture fluid. With this arrangement, the flow law of the fracture fluid inside the rock can be visualized, thereby improving the accuracy of the calculation of the flow law of the fracture fluid.

[0061] See also Figures 5 to 7 Preferably, the main frame also includes a vertical tie rod 140 and a transverse tie rod 150. The vertical tie rod 140 is arranged around the top plate 110 and the bottom plate 120, and the transverse tie rod 150 is arranged around the two side plates 130. The vertical tie rod 140 and the transverse tie rod 150 are both fixed by fixing members 160.

[0062] In this embodiment, the number of the vertical tie rods 140 and the transverse tie rods 150 is preferably four, the vertical tie rods 140 are parallel to each other and are arranged around the top plate 110 and the bottom plate 120, the transverse tie rods 150 are parallel to each other and are arranged around the two side plates 130, all the vertical tie rods 140 and all the transverse tie rods 150 are preferably perpendicular to each other, and the vertical tie rods 140 and the transverse tie rods 150 installed at the predetermined position are fixed by the fixing parts 160, wherein the fixing parts 160 are preferably nuts, and the main frame is made detachable by the nuts, which is convenient for replacement when parts are damaged.

[0063] Preferably, the top plate 110 and the bottom plate 120 are detachably connected to the side plate 130 via a connecting piece 170, and both the top plate 110 and the side plate 130 are provided with a first through hole 111 and a slot 112, and the first through hole 111 is evenly arranged along the circumference of the slot 112, and a universal wheel 122 is provided on the side of the bottom plate 120 facing away from the top plate 110, and the universal wheel 122 is distributed around the bottom plate 120 for driving the main frame to move.

[0064] It can be understood that the connecting member 170 is preferably a bolt, which facilitates the detachable connection between the top plate 110 and the bottom plate 120 and the side plate 130, wherein the axis of the bolt is preferably perpendicular to the top plate 110 and the bottom plate 120, and four universal wheels 122 are provided on the side of the bottom plate 120 away from the top plate 110, and the four universal wheels 122 are evenly distributed around the bottom plate 120, and the flexibility of the main frame can be maintained by the universal wheels 122.

[0065] Preferably, the fixed component 400 and the shear component 500 both include a connected telescopic component and a stress sensor 420, the fixed component 400 also includes a pressure plate 430 connected to the stress sensor 420, and the shear component 500 also includes a shear module 510 connected to the stress sensor 420. The stress sensors 420 are both provided with a digital display connected to a computer to record the normal stress of the pressure plate 430 and the horizontal shear force of the shear module 510 in real time.

[0066] In this embodiment, the movement of the pressure plate 430 and the shear module 510 is driven by the extension and retraction of the telescopic component, and the normal stress and the horizontal shear force can be recorded and displayed in real time through the stress sensor 420. Preferably, the pressure plate 430 and the shear module 510 are connected to the telescopic component through the stress sensor 420, wherein the fixed component 400 and the shear component 500 both include a telescopic component and a stress sensor 420 of the same structure to increase versatility, and a computer is connected to the digital display of the stress sensor 420 to facilitate rapid collection and processing of information.

[0067] See also Figure 8 and Fig. 9 Preferably, the telescopic assembly includes a piston rod 411, a second through hole 412 and a cylinder 413. The cylinder 413 is inserted into the slot 112 and fixed by the second through hole 412 and the first through hole 111. The piston rod 411 can be telescoped and rotated along its own axis to drive the shear module 510 connected through the stress sensor 420 to move.

[0068] It can be understood that after the oil cylinder 413 is passed through the slot 112, it is connected through the corresponding second through hole 412 and the first through hole 111 to realize the limiting of the telescopic component. In the present application, the number of the second through hole 412 and the first through hole 111 are preferably 6. The shearing or holding of the rock block 210 by the shearing module 510 is realized by the extension and rotation of the piston rod 411 relative to the rock block 210. The rotation angle of the two shearing modules 510 can be adjusted according to actual needs. For example, the two shearing modules 510 are symmetrical about the axis or center of the rock block 210.

[0069] See also Fig.10 and Fig.11 Preferably, the stress sensor 420 is specifically a spoke sensor, and the stress sensor 420 is provided with a third through hole 421 and a fourth through hole 422 whose axes are parallel to each other, and the fourth through hole 422 is evenly distributed along the circumference of the third through hole 421, and the piston rod 411 is provided with a fifth through hole 414 adapted to the fourth through hole 422, so that the stress sensor 420 and the piston rod 411 can be fixed after the limit member is penetrated, and the shear module 510 is provided with a shear plug 511 for matching and connecting with the third through hole 421.

[0070] In this embodiment, the fourth through holes 422 are evenly distributed along the circumference of the third through holes 421, and the number of the fourth through holes 422 and the fifth through holes 414 are preferably 4. The stress sensor 420 and the piston rod 411 are relatively fixed by limiting members passing through the corresponding fourth through holes 422 and fifth through holes 414. The limiting members are preferably bolts. The third through hole 421 is located at the center of the stress sensor 420 so that the shear plug 511 of the shear module 510 can be inserted into the third through hole 421. The shear module 510 also includes a shear head for shearing the rock mass, and the size of the shear head is adapted to the size of the box body.

[0071] Preferably, the box body also includes a shear box 220 and a rubber sleeve 230, the rubber sleeve 230 is sleeved on the outside of the shear box 220 to seal the shear box 220 and the rock block 210 located inside the shear box 220, and a roller 240 is provided at the bottom of the box body to space the box body and the storage table 121.

[0072] Among them, the inside of the box body is a cubic rock block 210 with a size of 100mm×100mm×100mm, and the outside is a transparent acrylic shear box 220 with a size of 258mm×258mm×258mm. A crack 211 is prefabricated along the center line of the rock block 210. The shear box 220 is processed with a channel for diverting the fracture fluid. The outside of the specimen is sealed with a rubber sleeve 230. A roller 240 is provided at the bottom of the box body to prevent excessive friction between the bottom of the box body and the storage table 121 during the shearing process, which makes shearing difficult.

[0073] It should be noted that the sizes of the rock block 210 and the shear box 220 and the specific positions and numbers of the rollers 240 can be adjusted according to actual conditions as long as the above-mentioned purpose can be achieved.

[0074] Preferably, the fluid pipeline includes a first pipeline 330 and a second pipeline 340 which are respectively connected to the containing box 310 and the storage box 320. The first pipeline 330 is provided with a liquid pump so that the contrast fluid in the containing box 310 flows along the first pipeline 330 into the crack 211 and then flows along the second pipeline 340 to the storage box 320.

[0075] It can be understood that, in the present embodiment, a containing box 310 and a storage box 320 for containing contrast fluid are provided, wherein the containing box 310 is used for the contrast fluid to enter the crack 211 along the first pipe 330, and the storage box 320 is used for collecting the contrast fluid flowing out through the crack 211, and a liquid pump is provided on the first pipe 330, by which the flow rate of the contrast fluid can be adjusted, wherein the height of the containing box 310 is preferably higher than the height of the crack 211, and the height of the storage box 320 is preferably lower than the height of the crack 211.

[0076] Preferably, the first pipeline 330 and the second pipeline 340 are both provided with an electromagnetic flowmeter 331 , and the electromagnetic flowmeter 331 is connected to a computer to transmit contrast fluid flow information in real time.

[0077] In this embodiment, the first pipeline 330 and the second pipeline 340 are both provided with an electromagnetic flowmeter 331, which is connected to a computer to monitor the flow rate and flow velocity changes of the contrast fluid flowing into and out of the crack 211. The computer can regulate the liquid pump in real time according to the flow information of the electromagnetic flowmeter 331, thereby changing the flow rate of the contrast fluid to achieve the preset flow condition.

[0078] Preferably, the contrast fluid is a barium sulfate solution.

[0079] The contrast fluid is preferably a barium sulfate solution, which has a fluid mechanics property close to that of a pure water medium, and is conducive to improving and enhancing the imaging quality of the contrast fluid in the X-ray scanning system when the contrast fluid flows along the cracks, and can significantly improve the development effect without affecting the fluid properties. In addition, the type and concentration of the contrast fluid can also be adjusted according to actual conditions, as long as the above-mentioned imaging quality can be achieved.

[0080] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0081] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0082] The embodiments provided by the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An X-ray imaging test device for testing the shear properties of fracture fluids, characterized in that: include: A main frame comprises a top plate (110) and a bottom plate (120) arranged in parallel, wherein the top plate (110) and the bottom plate (120) are connected via two side plates (130) arranged at intervals, and the bottom plate (120) is provided with a storage table (121); A box body is placed on the storage table (121) and has a rock block (210) inside, the rock block (210) has a crack (211), and both ends of the crack (211) are connected to a fluid pipeline for the circulation of contrast fluid; A fixing assembly (400) connected to the top plate (110) and capable of moving along its own axial direction to compress the box body; Two shearing assemblies (500), respectively disposed on the two side plates (130), and used for shearing or holding the box body compressed by the fixing assembly (400); The developing device comprises an X-ray generator (610) and an X-ray target surface (620) located on both sides of the box body, and is used for developing the contrast fluid flowing through the rock block (210).

2. The X-ray imaging test equipment for fracture fluid shear property testing according to claim 1, characterized in that: The main frame also includes a vertical tie rod (140) and a transverse tie rod (150). The vertical tie rod (140) is arranged around the top plate (110) and the bottom plate (120), and the transverse tie rod (150) is arranged around the two side plates (130). The vertical tie rod (140) and the transverse tie rod (150) are both fixed by a fixing member (160).

3. The X-ray imaging test equipment for fracture fluid shear property testing according to claim 1, characterized in that: The top plate (110) and the bottom plate (120) are detachably connected to the side plate (130) via a connecting piece (170); the top plate (110) and the side plate (130) are both provided with a first through hole (111) and a slot (112); the first through hole (111) is evenly arranged along the circumference of the slot (112); a universal wheel (122) is provided on a side of the bottom plate (120) away from the top plate (110); the universal wheel (122) is distributed around the bottom plate (120) and is used to drive the main frame to move.

4. The X-ray imaging test equipment for fracture fluid shear property testing according to claim 3, characterized in that: The fixing assembly (400) and the shearing assembly (500) both include a telescopic assembly and a stress sensor (420) connected to each other. The fixing assembly (400) further includes a pressure plate (430) connected to the stress sensor (420). The shearing assembly (500) further includes a shearing module (510) connected to the stress sensor (420). The stress sensors (420) are both provided with a digital display connected to a computer to record the normal stress of the pressure plate (430) and the horizontal shear force of the shearing module (510) in real time.

5. The X-ray imaging test equipment for fracture fluid shear property testing according to claim 4, characterized in that: The telescopic assembly includes a piston rod (411), a second through hole (412) and an oil cylinder (413); the oil cylinder (413) is inserted into the slot (112) and fixed via the second through hole (412) and the first through hole (111); the piston rod (411) is capable of telescoping and rotating along its own axis to drive the shear module (510) connected via the stress sensor (420) to move.

6. The X-ray imaging test equipment for fracture fluid shear property testing according to claim 5, characterized in that: The stress sensor (420) is specifically a spoke sensor. The stress sensor (420) is provided with a third through hole (421) and a fourth through hole (422) whose axes are parallel to each other. The fourth through hole (422) is evenly distributed along the circumference of the third through hole (421). The piston rod (411) is provided with a fifth through hole (414) adapted to the fourth through hole (422) so that the stress sensor (420) and the piston rod (411) can be fixed after the limiter is penetrated. The shear module (510) is provided with a shear plug (511) for matching and connecting with the third through hole (421).

7. The X-ray imaging test equipment for fracture fluid shear property testing according to claim 1, characterized in that: The box body also includes a shear box (220) and a rubber sleeve (230), wherein the rubber sleeve (230) is sleeved on the outside of the shear box (220) to seal the shear box (220) and the rock block (210) located inside the shear box (220), and a roller (240) is provided at the bottom of the box body to allow the box body and the storage platform (121) to be spaced apart.

8. The X-ray imaging test equipment for fracture fluid shear property testing according to claim 4, characterized in that: The fluid pipeline comprises a first pipeline (330) and a second pipeline (340) which are respectively connected to the containing box (310) and the storage box (320); a liquid pump is provided on the first pipeline (330) so that the contrast fluid in the containing box (310) flows into the crack (211) along the first pipeline (330) and then flows to the storage box (320) along the second pipeline (340).

9. The X-ray imaging test equipment for testing the shear properties of fracture fluids according to claim 8, characterized in that: The first pipeline (330) and the second pipeline (340) are both provided with an electromagnetic flowmeter (331), and the electromagnetic flowmeter (331) is connected to the computer to transmit the contrast fluid flow information in real time.

10. The X-ray imaging test equipment for testing the shear properties of fracture fluids according to any one of claims 1 to 9, characterized in that: The contrast solution is specifically a barium sulfate solution.

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