A stratum water filtering device for oil and gas field development experiments

Abstract

The present application relates to experimental filtration technical field, disclose a kind of stratum water filtering device for oil and gas field development experiment, including first layer filter structure, second layer filter structure, third layer filter structure, fourth layer filter structure, fifth layer filter structure, sixth layer filter structure and seventh layer filter structure, first layer filter structure, second layer filter structure, third layer filter structure, fourth layer filter structure, fifth layer filter structure, sixth layer filter structure and the upper and lower end outer edge of seventh layer filter structure are fixed with sealing installation ring, installation hole is sequentially docked with first layer filter structure, second layer filter structure, third layer filter structure, fourth layer filter structure, fifth layer filter structure, sixth layer filter structure and seventh layer filter structure by bolt installation.This application can experience multistage filtration process, can be aimed at different particle size or nature of impurities and be separated, greatly improve the filtering effect, can better satisfy oil and gas field development experiment.

Description

Technical Field

[0001] This invention relates to the field of experimental filtration technology, specifically to a formation water filtration device for oil and gas field development experiments. Background Technology

[0002] With advancements in technology and increased R&D investment, oil and gas field produced water reuse and treatment technologies are constantly being upgraded, requiring filters to possess higher anti-fouling performance and treatment efficiency. As energy demand grows and water scarcity intensifies, oil and gas field enterprises are increasingly eager to improve water resource recycling rates.

[0003] In steady-state seepage experiments of two-phase fluids such as oil-water, gas-water, and gas-oil, the fluid may contain various tiny particles, impurities, and substances of different phases. Single-layer filtration often cannot simultaneously meet the requirements for effective filtration of multiple impurities. During the experiment, the pressure and flow rate of the fluid may change. If the connection is not sealed tightly, fluid leakage will occur, which will not only affect the experiment but may also cause pollution of the experimental environment. The device may be affected by factors such as the impact force and vibration of the fluid. If the connection is not firm enough, problems such as loosening or displacement may occur, affecting the filtration effect and the stability of the device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a formation water filtration device for oil and gas field development experiments, solving the technical problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a formation water filtration device for oil and gas field development experiments, comprising a multi-layer filtration structure, totaling 7 layers. Each filtration structure has a sealing mounting ring at its upper and lower outer edges, and mounting holes are evenly distributed on the sealing mounting rings. The mounting holes are used to sequentially connect and install the first, second, third, fourth, fifth, sixth, and seventh filtration layers using bolts.

[0006] Preferably, the upper circumference of the first, second, third, fourth, fifth, sixth, and seventh filter layers is fixedly distributed with docking shafts, and the lower circumference of the first, second, third, fourth, fifth, sixth, and seventh filter layers is provided with docking holes. The mating shaft and mating hole fit together precisely, ensuring a stable installation between multiple filter structures.

[0007] Preferably, filter element grooves are formed in the middle of the first, second, third, fourth, fifth, sixth, and seventh filter layers, and the filter element grooves are inserted into and connected to an outer fixing ring, and a filter element structure is fixedly provided at the inner end of the outer fixing ring. The filter cartridge groove is used for precise insertion of the outer retaining ring, facilitating quick installation and disassembly and ensuring the stability of the filtration effect. When the filter cartridge needs to be replaced, simply pull the outer retaining ring out of the filter cartridge groove to remove the old filter cartridge structure, and then insert the new outer retaining ring to complete the replacement operation. This greatly shortens the filter cartridge structure replacement time and improves the efficiency of the device. The sealing mounting plate is designed on the outer edge of the outer retaining ring, which can fit tightly with the outer end face of the filter cartridge groove to prevent fluid leakage from the gap between the filter cartridge and the filter cartridge groove, thus ensuring the filtration effect.

[0008] Preferably, the sealing mounting plate has screw holes, and a mounting groove is provided at the corresponding position of the screw holes. The positioning bolt passes through the screw holes and connects with the locking screw holes of the filter structure. The positioning bolt has a bolt head with an internal hexagonal hole. The screw hole is used to install the positioning bolt, and the internal hexagonal hole is used for manual disassembly and assembly operations, which can effectively ensure the connection of the filter element and lock the screw hole to cooperate with the positioning bolt.

[0009] Preferably, the filter chip structure has multiple structures, namely a first filter plate, a second filter plate, a third filter plate, a fourth filter plate, a fifth filter plate, a sixth filter plate, and a seventh filter plate. The first filter plate, the fourth filter plate, and the seventh filter plate are all split structures. Insertion posts are fixedly distributed on one inner end of the first filter plate, the fourth filter plate, and the seventh filter plate, and insertion holes are distributed on the other inner end of the first filter plate, the fourth filter plate, and the seventh filter plate. The inserts and holes on the first, fourth, and seventh filter plates enable precise docking and installation.

[0010] Preferably, positioning heads are fixedly provided at both ends of the inner side of the outer fixing ring, and positioning holes are provided at the inner end of the filter element groove; The positioning head and positioning hole have a precisely corresponding structure, which further improves the stability of the installation, making it stable and reliable.

[0011] Preferably, the first filter plate has a first filter chip inside, the first filter chip has circular holes distributed inside, and the cross-section of the first filter plate has a curved structure. The fourth filter plate has square holes and grooves inside, and the square holes and grooves are distributed in a ring. The seventh filter plate has a seventh filter chip inside, and the seventh filter chip has a mesh structure. The designed pores increase the contact area between the fluid and the filter chip, improving filtration efficiency. The curved structure generates eddies as the fluid passes through, further enhancing the filtration effect. The square pores with annular distribution can filter impurities of specific shapes and sizes, improving the targeting of filtration. The mesh structure provides a large filtration area and has a good interception effect on small particles, making it suitable for experimental scenarios with high filtration accuracy requirements.

[0012] Preferably, the second filter plate and the sixth filter plate are respectively fixedly distributed with partitions and support rods inside. The partitions are filled with second filter chips, and the support rods are filled with sixth filter chips. An installation block is fixedly provided in the middle of the partitions and the support rods. The installation block is a split structure and extension plates are fixedly connected to both the upper and lower ends. The baffles and support rods provide support and fixation for the second and sixth filter cartridges, enhancing the structural stability of the filter cartridges. When fluid passes through the filter cartridges, the cartridges are subjected to the impact force of the fluid. Without sufficient support, the cartridges are prone to deformation or damage, affecting the filtration effect. The baffles and support rods can effectively disperse the impact force of the fluid on the cartridges, ensuring the stability of the shape and structure of the cartridges, thereby maintaining good filtration performance.

[0013] Preferably, X-shaped support plate I and X-shaped support plate II are fixedly distributed inside the third filter plate and the fifth filter plate, respectively, and the X-shaped support plate I and X-shaped support plate II are filled with the third filter chip and the fifth filter chip, respectively. X-type support plates I and II possess high structural strength, enabling them to withstand significant fluid pressure and impact. They provide reliable support for the third and fifth filter chips. During the experiment, the fluid flows through the filter element at a high velocity, generating substantial pressure. X-type support plates I and II ensure that the filter element does not deform or become damaged under these conditions, maintaining its normal filtration function. Furthermore, they increase the turbulence within the filter element, resulting in more thorough mixing between the fluid and the filter chip, thus improving filtration efficiency. This enhances the load-bearing capacity and filtration efficiency of the filter element, providing better assurance for the experiment.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The first, second, third, fourth, fifth, sixth and seventh filtration structures enable the fluid to undergo a multi-stage filtration process when passing through the device. Each filtration structure can intercept and separate impurities of different particle sizes or properties. Multi-layer filtration can remove impurities from the fluid more thoroughly. Targeted filtration can be carried out in different layers according to the characteristics of different impurities, which greatly improves the filtration effect and provides a purer fluid sample for the experiment, thereby ensuring the accuracy of the experimental results.

[0015] (2) By fixing multiple sets of sealing mounting rings at the upper and lower outer edges of each filter structure, the seven filter structures can be installed sequentially by bolts passing through the mounting holes. The sealing mounting rings can effectively prevent fluid leakage at the connection between the filter structures, ensuring that the fluid flows in the device according to the predetermined path and ensuring the normal conduct of the experiment. At the same time, by fixing the docking shafts around the upper end of each filter structure and the corresponding docking holes below, the connection strength between each filter structure can be enhanced, which can play a positioning and guiding role, so that each filter structure can be accurately aligned and connected, and can form a tighter connection between each filter structure, effectively resisting the action of external forces and ensuring the overall structural strength of the device.

[0016] (3) The first filter plate, second filter plate, third filter plate, fourth filter plate, fifth filter plate, sixth filter plate and seventh filter plate installed in the filter structure are all split structures, which can be flexibly combined and replaced to meet diverse experimental requirements. Through the filter holes and filter chips inside, they can effectively filter and purify, better meet the diverse filtration needs of different fluids in oil and gas field development experiments, and improve the accuracy and reliability of the experiment. Attached Figure Description

[0017] Figure 1 This is an exploded view of the overall filtration device of the present invention; Figure 2 This is a schematic diagram of the overall filtration device of the present invention after assembly; Figure 3 This is a schematic diagram of the fourth layer filter structure of the present invention after disassembly; Figure 4 This is a schematic diagram of one end of the filter element plate of the fourth layer filter structure of the present invention; Figure 5 This is a top view of one end of the filter element plate of the fourth layer filter structure of the present invention; Figure 6 This is a schematic diagram of the sealing mounting plate structure of the present invention; Figure 7 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 8 This is a schematic diagram of the fourth-layer filter structure of the present invention after assembly; Figure 9 This is a schematic diagram of the first layer filter structure of the present invention from above; Figure 10 This is a schematic diagram of the first layer filter structure from below. Figure 11 This is a schematic diagram of the second-layer filter structure from below. Figure 12 This is a schematic diagram of the third-layer filter structure from above. Figure 13 This is a schematic diagram of the fifth layer filter structure from above in this invention; Figure 14 This is a schematic diagram of the sixth-layer filter structure from below. Figure 15 For the present invention Figure 14 Enlarged structural diagram at point B; Figure 16 This is a schematic diagram of the seventh-layer filter structure from above.

[0018] In the diagram: 1. First layer filter structure; 11. First filter element plate; 12. First filter chip; 2. Second-layer filter structure; 21. Second filter element plate; 22. Second filter element; 23. Separator; 3. Third-layer filtration structure; 31. Third filter element plate; 32. Third filter element; 33. X-shaped support plate I; 4. Fourth-layer filter structure; 401. Filter element groove; 402. Positioning hole; 403. Locking screw hole; 41. Fourth filter element plate; 411. Insert post; 42. Outer fixing ring; 43. Sealing mounting ring; 431. Mounting hole; 44. Insertion hole; 45. Positioning head; 46. Sealing mounting plate; 461. Screw hole; 462. Mounting groove; 47. Positioning bolt; 471. Bolt head; 472. Socket head; 48. Connecting shaft; 49. Connecting hole; 5. Fifth layer filtration structure; 51. Fifth filter element plate; 52. Fifth filter element; 53. X-shaped support plate II; 6. Sixth layer filter structure; 61. Sixth filter element plate; 62. Sixth filter element chip; 63. Support rod; 64. Mounting block; 641. Extension plate; 7. Seventh layer filtration structure; 71. Seventh filter element plate; 72. Seventh filter chip. Detailed Implementation

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-16 This invention provides a formation water filtration device for oil and gas field development experiments, comprising a multi-layered filtration structure with a total of 7 layers. Each filtration structure has a sealing ring 43 at its upper and lower outer edges, and mounting holes 431 are evenly distributed on the sealing ring 43. The mounting holes 431 are used to sequentially connect and install the first layer filtration structure 1, the second layer filtration structure 2, the third layer filtration structure 3, the fourth layer filtration structure 4, the fifth layer filtration structure 5, the sixth layer filtration structure 6, and the seventh layer filtration structure 7 via bolts.

[0021] The integrated filtration device is used for steady-state seepage experiments of two-phase fluids such as oil-water, gas-water, and gas-oil.

[0022] Further improvements include the following: docking shafts 48 are fixedly distributed around the upper circumference of the first filter layer 1, the second filter layer 2, the third filter layer 3, the fourth filter layer 4, the fifth filter layer 5, the sixth filter layer 6, and the seventh filter layer 7; docking holes 49 are distributed around the lower circumference of the first filter layer 1, the second filter layer 2, the third filter layer 3, the fourth filter layer 4, the fifth filter layer 5, the sixth filter layer 6, and the seventh filter layer 7. The mating shaft 48 and the mating hole 49 work together to achieve precise mating, ensuring a stable installation between multiple filter structures.

[0023] Further improvements include a filter element groove 401 in the middle of the first filter layer 1, the second filter layer 2, the third filter layer 3, the fourth filter layer 4, the fifth filter layer 5, the sixth filter layer 6, and the seventh filter layer 7. The filter element groove 401 is inserted into and connected to an outer fixing ring 42, and a filter element structure is fixedly installed at the inner end of the outer fixing ring 42. The filter element groove 401 is used for precise insertion of the outer fixing ring 42, which facilitates quick installation and disassembly and ensures the stability of the filtration effect. When the filter element needs to be replaced, simply pull the outer fixing ring 42 out of the filter element groove 401 to remove the old filter element structure, and then insert the new outer fixing ring 42 to complete the replacement operation. This greatly shortens the time for replacing the filter element structure and improves the efficiency of the device. The sealing mounting plate 46 is designed on the outer edge of the outer fixing ring 42 and can fit tightly with the outer end face of the filter element groove 401 to prevent fluid leakage from the gap between the filter element and the filter element groove 401, thus ensuring the filtration effect.

[0024] Further improvements include a screw hole 461 on the sealing mounting plate 46, a mounting groove 462 at the corresponding position of the screw hole 461, a positioning bolt 47 passing through the screw hole 461 and connecting to the locking screw hole 403 of the filter structure, the positioning bolt 47 having a bolt head 471, and the bolt head 471 having an internal hexagonal hole 472. The screw hole 461 is used to install the positioning bolt 47, and the internal hexagonal hole 472 is used for manual disassembly and assembly operations, which can effectively ensure the connection of the filter element. The locking screw hole 403 cooperates with the positioning bolt 47 to ensure a firm connection.

[0025] Further improvements include a variety of filter chip structures, namely a first filter plate 11, a second filter plate 21, a third filter plate 31, a fourth filter plate 41, a fifth filter plate 51, a sixth filter plate 61, and a seventh filter plate 71. These are respectively installed on the first layer of filter structure 1 to the seventh layer of filter structure 7. The first filter plate 11, the fourth filter plate 41, and the seventh filter plate 71 are all split structures. Insertion posts 411 are fixedly distributed on one inner end of the first filter plate 11, the fourth filter plate 41, and the seventh filter plate 71, and insertion holes 44 are opened on the other inner end of the first filter plate 11, the fourth filter plate 41, and the seventh filter plate 71.

[0026] The inserts 411 and holes 44 on the first filter plate 11, the fourth filter plate 41 and the seventh filter plate 71 are used to achieve precise docking and installation. They have a simple structure and low cost.

[0027] Further improvements include positioning heads 45 fixed at both ends of the inner side of the outer fixing ring 42, and positioning holes 402 opened at the inner end of the filter element groove 401. The positioning head 45 and the positioning hole 402 are precisely matched, which further improves the stability of the installation and makes it stable and reliable.

[0028] In a further improvement, the first filter plate 11 is provided with a first filter chip 12 inside, the first filter chip 12 has circular holes distributed inside, and the cross-section of the first filter plate 11 is a curved structure. The fourth filter plate 41 has square holes and grooves inside, which are distributed in a ring. The seventh filter plate 71 has a seventh filter chip 72 inside, and the seventh filter chip 72 has a mesh structure; The designed pores increase the contact area between the fluid and the filter chip, improving filtration efficiency. The curved structure generates eddies as the fluid passes through, further enhancing the filtration effect. The square pores with annular distribution can filter impurities of specific shapes and sizes, improving the targeting of filtration. The mesh structure provides a large filtration area and has a good interception effect on small particles, making it suitable for experimental scenarios with high filtration accuracy requirements.

[0029] In a further improvement, a partition 23 and a support rod 63 are fixedly distributed inside the second filter plate 21 and the sixth filter plate 61, respectively. The partition 23 is filled with a second filter chip 22. The support rod 63 is filled with a sixth filter chip 62. A mounting block 64 is fixedly provided at the middle of the partition 23 and the support rod 63. The mounting block 64 has a split structure and extension plates 641 are fixedly connected to both its upper and lower ends.

[0030] The partition 23 and support rod 63 provide support and fixation for the second filter element 22 and the sixth filter element 62, enhancing the structural stability of the filter elements. When fluid passes through the filter elements, the filter elements are subjected to the impact force of the fluid. Without sufficient support, the filter elements are prone to deformation or damage, affecting the filtration effect. The partition 23 and support rod 63 effectively disperse the impact force of the fluid on the filter elements, ensuring the stability of the shape and structure of the filter elements, thereby maintaining good filtration performance.

[0031] Specifically, in the improvements, X-shaped support plate I 33 and X-shaped support plate II 53 are fixedly distributed inside the third filter plate 31 and the fifth filter plate 51, respectively, and the third filter chip 32 and the fifth filter chip 52 are filled inside the X-shaped support plate I 33 and the X-shaped support plate II 53, respectively. X-type support plates I33 and II53 have high structural strength and can withstand large fluid pressure and impact forces, providing reliable support for the third filter chip 32 and the fifth filter chip 52. During the experiment, the fluid will pass through the filter element at a high flow rate, generating large pressure. X-type support plates I33 and II53 can ensure that the filter element does not deform or get damaged under these conditions, maintaining normal filtration function. They can also increase the turbulence of the fluid inside the filter element, making the mixing between the fluid and the filter chip more thorough, improving filtration efficiency, and enhancing the load-bearing capacity and filtration efficiency of the filter element, providing better protection for the experiment.

[0032] The integrated filtration device is used for steady-state seepage experiments of two-phase fluids such as oil-water, gas-water, and gas-oil.

[0033] Working principle: The oil-water, gas-water, or gas-oil two-phase fluid to be filtered is injected into the device inlet, and the fluid sequentially enters the first filter structure 1, the second filter structure 2, the third filter structure 3, the fourth filter structure 4, the fifth filter structure 5, the sixth filter structure 6, and the seventh filter structure 7.

[0034] The fluid passes through the first filter chip 12 of the first filter plate 11, where the eddy current effect and increased contact area initially intercept large particles of impurities. The fluid then enters the second filter chip 22 of the second filter plate 21, where the partition 23 disperses the impact force and extends the flow path, further filtering small and medium-sized particles. The fluid passes through the third filter chip 32 of the third filter plate 31, where the X-shaped support plate I 33 enhances turbulence and improves the interception efficiency of small particles. The fluid enters the square perforated grooves of the fourth filter plate 41, where it is specifically filtered for impurities of particular shapes. The fluid passes through the fifth filter chip 52 of the fifth filter plate 51, where the X-shaped support plate II 53 further strengthens the filtration of small particles. The fluid enters the sixth filter chip 62 of the sixth filter plate 61, where the support rod 63 fixes and disperses the impact force, ensuring filtration stability. Finally, the fluid passes through the mesh-like seventh filter chip 72 of the seventh filter plate 71, intercepting the remaining small particles and completing the final purification. The filtered fluid is discharged from the device outlet, completing the steady-state seepage experiment. This greatly improves the filtration effect and provides a purer fluid sample for the experiment, thus ensuring the accuracy of the experimental results. It can better meet the diverse filtration needs of different fluids in oil and gas field development experiments and improve the accuracy and reliability of the experiment.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A formation water filtration device for oil and gas field development experiments, comprising a multi-layer filtration structure with a total of 7 layers, characterized in that: All filter structures have sealing mounting rings (43) at the outer edges of the upper and lower ends. The sealing mounting rings (43) are evenly distributed with mounting holes (431). The mounting holes (431) are used to connect and install the first layer filter structure (1), the second layer filter structure (2), the third layer filter structure (3), the fourth layer filter structure (4), the fifth layer filter structure (5), the sixth layer filter structure (6), and the seventh layer filter structure (7) in sequence by bolts.

2. The formation water filtration device for oil and gas field development experiments according to claim 1, characterized in that: The upper circumference of the first layer filter structure (1), the second layer filter structure (2), the third layer filter structure (3), the fourth layer filter structure (4), the fifth layer filter structure (5), the sixth layer filter structure (6) and the seventh layer filter structure (7) is fixedly distributed with docking shafts (48), and the lower circumference of the first layer filter structure (1), the second layer filter structure (2), the third layer filter structure (3), the fourth layer filter structure (4), the fifth layer filter structure (5), the sixth layer filter structure (6) and the seventh layer filter structure (7) is provided with docking holes (49).

3. The formation water filtration device for oil and gas field development experiments according to claim 1, characterized in that: The first layer filter structure (1), the second layer filter structure (2), the third layer filter structure (3), the fourth layer filter structure (4), the fifth layer filter structure (5), the sixth layer filter structure (6) and the seventh layer filter structure (7) have filter element grooves (401) in the middle. The filter element grooves (401) are connected to an outer fixing ring (42). The inner end of the outer fixing ring (42) is fixed with a filter element structure.

4. The formation water filtration device for oil and gas field development experiments according to claim 3, characterized in that: The sealing mounting plate (46) is designed on the outer edge of the outer fixing ring (42). The sealing mounting plate (46) has a screw hole (461) and a mounting groove (462) is provided at the corresponding position of the screw hole (461). The positioning bolt (47) passes through the screw hole (461) and is connected to the locking screw (403) of the filter structure. The positioning bolt (47) has a bolt head (471) and the bolt head (471) has an internal hexagonal hole (472).

5. The formation water filtration device for oil and gas field development experiments according to claim 4, characterized in that: The filter chip structure has multiple structures, namely a first filter plate (11), a second filter plate (21), a third filter plate (31), a fourth filter plate (41), a fifth filter plate (51), a sixth filter plate (61), and a seventh filter plate (71). The first filter plate (11), the fourth filter plate (41), and the seventh filter plate (71) are all split structures. Insertion posts (411) are fixedly distributed on one inner end of the first filter plate (11), the fourth filter plate (41), and the seventh filter plate (71). Insertion holes (44) are opened on the other inner end of the first filter plate (11), the fourth filter plate (41), and the seventh filter plate (71).

6. The formation water filtration device for oil and gas field development experiments according to claim 4, characterized in that: The outer fixing ring (42) has a positioning head (45) fixed at both ends on its inner side, and the filter element groove (401) has a positioning hole (402) at its inner end.

7. The formation water filtration device for oil and gas field development experiments according to claim 5, characterized in that: The first filter plate (11) has a first filter chip (12) inside, and the first filter chip (12) has circular holes distributed inside, and the cross section of the first filter plate (11) is a curved structure. The fourth filter plate (41) has square holes and grooves inside, and the square holes and grooves are distributed in a ring. The seventh filter chip (72) inside the seventh filter plate (71) has a mesh structure.

8. The formation water filtration device for oil and gas field development experiments according to claim 5, characterized in that: The second filter plate (21) and the sixth filter plate (61) are respectively fixedly distributed with partitions (23) and support rods (63). The partitions (23) are filled with second filter chips (22), and the support rods (63) are filled with sixth filter chips (62). An installation block (64) is fixedly provided in the middle of the partitions (23) and the support rods (63). The installation block (64) is a split structure and extension plates (641) are fixedly connected to both the upper and lower ends.

9. The formation water filtration device for oil and gas field development experiments according to claim 5, characterized in that: The interior of the third filter plate (31) and the fifth filter plate (51) are respectively fixedly distributed with X-shaped support plate I (33) and X-shaped support plate II (53), and the interior of the X-shaped support plate I (33) and the X-shaped support plate II (53) are respectively filled with the third filter chip (32) and the fifth filter chip (52).

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