Petroleum screen pipe convenient to clean

Abstract

The utility model discloses a petroleum screen pipe convenient to clean, which comprises a split type screen pipe fitting, a screen pipe main body and a filter pipe plate combined and connected with the screen pipe main body, and a baffle plate is welded on the inner surface of the filter pipe plate; the reinforcing assembly comprises reinforcing plates which are symmetrically distributed, fixed semi-cylinders which are connected with one ends of the reinforcing plates in a welded mode and reinforcing plates which are connected with the attached fixed semi-cylinders in a sliding and inserted mode, and protruding blocks are welded to the surfaces of the fixed semi-cylinders; the combined petroleum screen pipe can be split into the filter pipe plate and the screen pipe body, the inner surfaces of the filter pipe plate and the screen pipe body can be fully cleaned conveniently, a reinforcing assembly and a sealing piece are designed, a reinforcing plate is connected with a fixed semi-cylinder in a sliding and inserted mode, the fixed semi-cylinder is limited, and the service life of the screen pipe is prolonged. And therefore, stable connection of the screen pipe body and the filter pipe plate is guaranteed, the sealing block and the shielding plate shield the joint gap position of the screen pipe body and the filter pipe plate, and leakage is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of screen tube technology, specifically relating to an easy-to-clean oil screen tube. Background Technology

[0002] In oil drilling and production, screen pipes are an important piece of equipment. The main function of oil screen pipes is sand control. The surface of oil screen pipes has screen holes or slits. Solid particles in the fluid are filtered through the slits or holes on the screen pipe. When the fluid passes through the oil screen pipe, larger solid particles are blocked outside the screen pipe, while smaller fluid particles can continue to flow through these slits. There are many types of oil screen pipes, mainly including slotted screen pipes, perforated screen pipes, wire-wound screen pipes, bridge screen pipes, and composite screen pipes.

[0003] When perforated screens are used for oil transportation, oil or solid particles may clog the screen holes, affecting oil transportation. Therefore, the oil screens need to be cleaned. Usually, oil screens are a one-piece structure. When cleaning with high-pressure nozzle flushing, high-pressure cleaning is performed by inserting a high-pressure nozzle into the oil screen. However, this method is prone to dead corners that cannot be cleaned, which has its shortcomings.

[0004] Existing drilling screens have the problem that the screens cannot be disassembled during cleaning, and the inner surface of the screens cannot be thoroughly cleaned. Therefore, this application proposes an oil screen that is easy to clean. Utility Model Content

[0005] The purpose of this invention is to provide an easy-to-clean oil screen tube to solve the problem mentioned in the background art that the screen tube cannot be disassembled and its inner surface cannot be thoroughly cleaned.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-clean oil screen pipe, comprising...

[0007] The split-type screen tube fitting includes a screen tube body and a filter tube plate connected to the screen tube body. A baffle plate is welded on the inner surface of the filter tube plate.

[0008] The reinforcing assembly includes symmetrically distributed reinforcing plates, a fixed semi-cylinder welded to one end of the reinforcing plates, and a reinforcing plate slidably connected to the fitted fixed semi-cylinder, wherein protrusions are welded to the surface of the fixed semi-cylinder.

[0009] The sealing element includes a welded sealing block and a sealing plate, wherein a locking block is welded to the opposite surface of the sealing plate.

[0010] Preferably, one end of the reinforcing plate is welded to the center of the inner surface of the corresponding filter tube plate, and the cross-section of the fixed semi-cylinder is a semi-circular plate shape.

[0011] Preferably, the surface of the fixed semi-cylinder is provided with a recessed groove that mates with the corresponding protrusion. The orthographic projection of the groove is rectangular. The opposing fixed semi-cylinders are securely fastened with bolts.

[0012] Preferably, a T-shaped limiting groove is provided at the center of the surface of the fixed semi-cylinder, and the reinforcing plate with the I-shaped structure cooperates with the limiting groove.

[0013] Preferably, the baffle plate includes a wide end near one end of the filter tube plate and a narrow end at the other end, and the cross-section of the baffle plate is a curved shape extending from the wide end to the narrow end.

[0014] Preferably, the outer surface of the sealing block away from the sealing plate is curved, and the arc curve of the outer surface of the sealing block fits the arc curve of the inner surface of the screen tube body. The side of the sealing block facing the baffle plate is a waist surface, which is an arc curve shape that fits the baffle plate.

[0015] Preferably, the sealing plate is located between opposing shielding plates, the shielding plate has a concave sealing groove that mates with the locking block, and the shielding plate and the sealing block are securely fastened together by bolts.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this utility model, the combined oil screen pipe can be disassembled into a filter tube sheet and a screen pipe body, which facilitates thorough cleaning of the inner surfaces of the filter tube sheet and the screen pipe body. It is designed with reinforcing components and sealing elements. The reinforcing plate is slidably inserted into the fixed semi-cylinder to limit the fixed semi-cylinder, thereby ensuring a stable connection between the screen pipe body and the filter tube sheet. The sealing block and the baffle plate cover the gap where the screen pipe body and the filter tube sheet meet, preventing leakage. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of the screen tube body and filter tube sheet of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0020] Figure 3 This is a top view of the main body of the screen tube of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the screen tube body of this utility model;

[0022] Figure 5 This is a schematic diagram of the front view of the fixed semi-cylinder structure of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the sealing block of this utility model;

[0024] In the diagram: 2. Reinforcing plate; 3. Fixed semi-cylinder; 4. Reinforcing plate; 11. Screen tube body; 12. Filter tube plate; 31. Protrusion; 32. Limiting groove; 33. Slot; 51. Sealing block; 52. Blocking plate; 53. Slot; 121. Baffle plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6 This utility model provides a technical solution: an easy-to-clean oil screen pipe, comprising a split screen pipe fitting, including a screen pipe body 11 and a filter pipe plate 12 connected to the screen pipe body 11. A baffle plate 121 is welded to the inner surface of the filter pipe plate 12. The screen pipe body 11 and the filter pipe plate 12 are a combined structure, allowing the filter pipe plate 12 and the screen pipe body 11 to be separated for thorough cleaning of their inner surfaces. A reinforcing component includes symmetrically distributed reinforcing plates 2, a fixed semi-cylinder 3 welded to one end of the reinforcing plate 2, and a reinforcing plate 4 slidably inserted into the fixed semi-cylinder 3. A protrusion 31 is welded to the surface of the fixed semi-cylinder 3. The reinforcing component increases the stability of the assembly between the screen pipe body 11 and the filter pipe plate 12. One end of the reinforcing plate 2 is welded to the corresponding filter pipe plate 12. When the filter pipe plate 12 is assembled with the screen pipe body 11, the opposing fixed semi-cylinders 3 are in contact. The "I"-shaped reinforcing plate 4 is slidably inserted into the fixed semi-cylinder 3 to limit the fixed semi-cylinder 3, thereby ensuring a stable connection between the screen tube body 11 and the filter tube plate 12. In addition, the protrusion 31 is embedded in the interior of the opposing fixed semi-cylinder 3 to increase the tightness of the fit between the opposing fixed semi-cylinder 3. The reinforcing component increases the stability of the filter tube plate 12 installed on the screen tube body 11 and increases the structural strength; the sealing components include a welded sealing block 51 and a sealing plate. 52. A locking block 53 is welded to the opposite surface of the sealing plate 52. There is a gap on the inner surface where the screen tube body 11 and the filter tube plate 12 are joined. The sealing block 51 and the baffle plate 121 cover the gap to prevent leakage. The locking block 53 is embedded in the interior of the baffle plate 121 to increase the sealing between the sealing plate 52 and the baffle plate 121. In addition, the sealing element is combined with the baffle plate 121 and the sealing element is regarded as a support element to increase the stability of the joint position of the screen tube body 11 and the filter tube plate 12.

[0027] In this embodiment, one end of the reinforcing plate 2 is welded to the center of the inner surface of the corresponding filter tube plate 12. The cross-section of the fixed semi-cylinder 3 is semi-circular. The opposing fixed semi-cylinders 3 form a bent solid cylinder. The surface of the fixed semi-cylinder 3 is provided with a recessed groove 33 that cooperates with the corresponding protrusion 31. The protrusion 31 is embedded in the corresponding groove 33, so that the opposing fixed semi-cylinders 3 are accurately fitted. The orthographic projection of the groove 33 is rectangular. The opposing fixed semi-cylinders 3 are firmly secured by bolts. The opposing fixed semi-cylinders 3 are firmly installed. The number of bolts can be designed according to actual needs. A "T"-shaped limiting groove 32 is provided at the center of the surface of the fixed semi-cylinder 3. The "I"-shaped reinforcing plate 4 cooperates with the limiting groove 32. The reinforcing plate 4 and the limiting groove 32 are slidably connected. The reinforcing plate 4 is limited by the fixed semi-cylinder 3. In addition, the reinforcing plate 4 also limits the fixed semi-cylinder 3 to prevent the fixed semi-cylinder 3 from tilting.

[0028] In this embodiment, the baffle plate 121 includes a wide end near one end of the filter tube plate 12 and a narrow end at the other end. The cross-section of the baffle plate 121 is a curved shape extending from the wide end to the narrow end, allowing fluid to flow smoothly on the surface of the baffle plate 121. The outer surface of the sealing block 51 facing away from the sealing plate 52 is curved. The arc curve of the outer surface of the sealing block 51 fits the arc curve of the inner surface of the screen tube body 11. The side of the sealing block 51 facing the baffle plate 121 is a waist surface, which is an arc curve shape that fits the baffle plate 121. The sealing block 51 fits tightly with the baffle plate 121. The sealing block 51 and the baffle plate 121 cover the gap where the screen tube body 11 and the filter tube plate 12 are joined, preventing leakage.

[0029] In this embodiment, the sealing plate 52 is located between the opposing shielding plates 121. The shielding plate 121 has a recessed sealing groove that cooperates with the locking block 53. The shielding plate 121 and the sealing block 51 are firmly secured by bolts. The shielding plate 121 and the sealing block 51 are installed securely. The number of bolts can be designed according to actual needs.

[0030] Working principle and usage process of this utility model:

[0031] When it is necessary to disassemble the inner surface of the oil screen tube, the screen tube body 11 and the filter tube plate 12 of this application are a combined structure, and the filter tube plate 12 and the screen tube body 11 can be separated to facilitate thorough cleaning of the inner surfaces of the screen tube body 11 and the filter tube plate 12.

[0032] The opposing filter tube plates 12 of this application are provided with a reinforcing component. When the filter tube plate 12 is assembled with the screen tube body 11, the opposing fixed semi-cylinders 3 are fitted together, and the reinforcing plate 4 is slidably inserted into the fixed semi-cylinders 3 to limit the fixed semi-cylinders 3, thereby ensuring a stable connection between the screen tube body 11 and the filter tube plate 12.

[0033] In addition, the protrusion 31 is embedded in the interior of the opposing fixed semi-cylinder 3, which increases the tightness of the fit between the opposing fixed semi-cylinder 3. The reinforcement component increases the stability of the filter tube plate 12 installed on the screen tube body 11 and increases the structural strength.

[0034] In addition, through the designed sealing element, the sealing block 51 fits tightly with the baffle plate 121, and the sealing block 51 and the baffle plate 121 cover the gap where the screen tube body 11 and the filter tube plate 12 are joined, thus preventing leakage.

[0035] In summary, the combined oil screen pipe of this application can be disassembled into a filter tube sheet 12 and a screen pipe body 11, which facilitates thorough cleaning of the inner surfaces of the filter tube sheet 12 and the screen pipe body 11. It is designed with reinforcing components and sealing elements. The reinforcing plate 4 is slidably inserted into the fixed semi-cylinder 3 to limit the fixed semi-cylinder 3, thereby ensuring a stable connection between the screen pipe body 11 and the filter tube sheet 12. The sealing block 51 and the shielding plate 121 cover the gap where the screen pipe body 11 and the filter tube sheet 12 meet, preventing leakage.

[0036] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil screen pipe that is easy to clean, characterized by: Comprising The split screen pipe fitting comprises a screen pipe body (11), a filter pipe plate (12) combined with the screen pipe body (11), and a shielding plate (121) welded on the inner surface of the filter pipe plate (12). The reinforcing assembly comprises symmetrically distributed reinforcing plates (2), a fixed half-cylinder (3) welded at one end of the reinforcing plate (2), and a reinforcing plate (4) slidingly inserted into the fixed half-cylinder (3). The sealing member comprises a sealing block (51) and a blocking plate (52) welded together, and a clamping block (53) welded on the opposite surface of the blocking plate (52).

2. An oil screen of claim 1 wherein: One end of the reinforcing plate (2) is welded to the center of the inner surface of the corresponding filter pipe plate (12), and the cross section of the fixed half-cylinder (3) is in the shape of a half-cylinder plate.

3. An oil screen of claim 1 wherein: The surface of the fixed half-cylinder (3) is provided with an inner recessed clamping groove (33) matched with the corresponding protrusion (31), and the orthographic projection of the clamping groove (33) is in the shape of a rectangle.

4. An oil screen of claim 1 wherein: The surface of the fixed half-cylinder (3) is provided with a "T" shaped limiting groove (32) at the center, and the "T" shaped reinforcing plate (4) is matched with the limiting groove (32).

5. An oil screen of claim 1 wherein: The shielding plate (121) comprises a wide end near one end of the filter pipe plate (12) and a narrow end at the other end, and the cross section of the shielding plate (121) is in the shape of a curved shape extending from the wide end to the narrow end.

6. An oil screen of claim 1 wherein: The outer surface of the sealing block (51) away from the blocking plate (52) is in the shape of a curved shape, the arc curve of the outer surface of the sealing block (51) is matched with the circular arc curve of the inner surface of the screen pipe body (11), and the surface of the sealing block (51) facing the shielding plate (121) is in the shape of a waist surface, which is in the shape of an arc curve matched with the shielding plate (121).

7. An oil screen of claim 1 wherein: The blocking plate (52) is located between the opposite shielding plates (121), the shielding plate (121) is provided with an inner recessed sealing groove matched with the clamping block (53), and the shielding plate (121) is fastened with the sealing block (51) by bolts.

Images