A screen pipe with good corrosion resistance for oil mining

Abstract

The utility model discloses a screen tube with good corrosion resistance for oil mining, including a screen tube body, a mounting plate is provided inside one end of the screen tube body, a through hole is connected to the mounting plate, a filter is provided in the through hole, a fastener is provided on the screen tube body to match the through hole and close to the bottom surface of the filter, the fastener is screwed to the outer wall of the screen tube body, the filter includes a fixed cylinder, a group of grooves are symmetrically provided on the outer wall of the fixed cylinder, a screen extending into the groove is provided at both ends of the fixed cylinder, and a mesh hoop sleeve close to the screen is provided in the groove. The advantages of the utility model compared with the prior art are: through the provision of the through hole and the fastener, the installation and disassembly of the filter is convenient, thereby realizing the cleaning operation of impurities and improving the corrosion resistance; the provision of the mesh hoop sleeve on the filter is convenient for replacing the screen, thereby realizing rapid maintenance and repair operations and convenient use.

Description

Technical Field

[0001] The utility model relates to the technical field of oil exploitation, in particular to a screen pipe with good corrosion resistance for oil exploitation. Background Art

[0002] Oil extraction refers to the act of digging and extracting oil from where it is stored. In the process of oil extraction, oil and gas flow from the reservoir to the bottom of the well and then rise from the bottom of the well to the wellhead.

[0003] In the process of oil extraction, the screen is a key device for filtering and separating liquids and gases in oil wells. However, when using traditional screen materials, a large amount of impurities are stored in the screen, which is inconvenient to remove, making the inner wall susceptible to corrosion and wear by impurities, resulting in a shortened service life of the screen, increasing the cost and risk of oil extraction. Therefore, a screen with good corrosion resistance is needed for oil extraction that can solve these problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is that impurities stored in the screen tube increase the risk of inner wall corrosion and wear, and a screen tube with good corrosion resistance for oil mining is provided.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a screen tube with good corrosion resistance for oil mining, comprising a screen tube body, a mounting plate is provided inside one end of the screen tube body, a through hole is connected on the mounting plate, a filter is provided in the through hole, a fastener is provided on the screen tube body to match the through hole and is close to the bottom surface of the filter, the fastener is screwed to the outer wall of the screen tube body, the filter comprises a fixed cylinder, a group of grooves are symmetrically provided on the outer wall of the fixed cylinder, screens extending into the grooves are provided at both ends of the fixed cylinder, and a mesh hoop sleeve close to the screen is provided in the groove.

[0006] As an improvement, the fastener includes a fastening plate, the screen tube body is provided with an annular groove matching the fastening plate, and the fastening plate is penetrated by a plurality of bolts threadedly connected with the annular groove, so as to facilitate the installation and disassembly of the fastening plate, thereby making the installation operation of the filter element simple and easy.

[0007] As an improvement, the fastening plate is provided with a sealing ring extending into the through hole and close to the inner wall of the through hole. The sealing ring is arranged close to the bottom surface of the filter element on the side away from the fastening plate, which can stabilize the installation of the filter element and make the connection sealed.

[0008] As an improvement, a conduit is fixedly connected to the outer wall of one end of the mounting plate away from the filter element, and the diameter of the conduit is smaller than the screen, so that the screen can be fully contacted with the oil.

[0009] As an improvement, the two ends of the mesh hoop are connected with adjustment plates, and a threaded screw is rotatably provided on the adjustment plate. The threaded screw is threadedly connected to another adjustment plate, so that the mesh hoop can be quickly disassembled, facilitating the installation and disassembly operations of the screen.

[0010] Compared with the prior art, the utility model has the advantages that: the filter element can be easily installed and disassembled by the through hole and the fastener, thereby realizing the cleaning operation of impurities and improving the corrosion resistance effect;

[0011] The setting of the screen hoop sleeve on the filter element makes it easy to replace the screen, thereby realizing quick maintenance and repair operations and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a first stereoscopic diagram of a screen pipe with good corrosion resistance for oil mining.

[0013] Figure 2 This is the second stereoscopic view of the utility model, which is a screen pipe with good corrosion resistance for oil mining.

[0014] Figure 3 It is the third stereoscopic view of the utility model of a screen pipe with good corrosion resistance for oil mining.

[0015] Figure 4 The utility model is a cross-sectional stereoscopic diagram of a screen pipe with good corrosion resistance used in petroleum mining.

[0016] Figure 5 The utility model is a three-dimensional diagram of a filter element of a screen tube with good corrosion resistance used in petroleum mining.

[0017] Figure 6 The utility model is a three-dimensional diagram of a filter element of a screen tube with good corrosion resistance used in petroleum mining in a disassembled state.

[0018] Figure 7 yes Figure 4 Schematic diagram of the structure of part A.

[0019] As shown in the figure: 1. Screen tube body; 2. Mounting plate; 3. Through hole; 4. Filter element; 5. Fastener; 6. Fixing cylinder; 7. Groove; 8. Screen; 9. Mesh hoop; 10. Fastening plate; 11. Annular groove; 12. Bolt; 13. Sealing ring; 14. Conduit; 15. Adjustment plate; 16. Threaded screw. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Combined with Figure 1-7As shown, a screen tube with good corrosion resistance for oil mining comprises a screen tube body 1, a mounting plate 2 is provided inside one end of the screen tube body 1, a through hole 3 is connected on the mounting plate 2, a filter 4 is provided in the through hole 3, the filter 4 comprises a fixed cylinder 6, a group of grooves 7 are symmetrically provided on the outer wall of the fixed cylinder 6, a screen 8 extending into the groove 7 is provided at both ends of the fixed cylinder 6, a conduit 14 is fixedly connected on the outer wall of one end of the mounting plate 2 away from the filter 4, the diameter of the conduit 14 is smaller than the screen 8, a mesh hoop 9 tightly attached to the screen 8 is matched and clamped in the groove 7, and an adjusting plate 15 is connected at both ends of the mesh hoop 9, a threaded screw 16 is rotatably provided on the adjusting plate 15, and the threaded screw 16 is threadedly connected with another adjusting plate 15;

[0022] Through the above structure, when in use, firstly, two clean screens 8 are placed on the upper and lower ends of the fixed cylinder 6, and then the mesh hoop 9 is clamped into the groove 7, and the threaded screw 16 is rotated to make the adjustment plate 15 constantly approach the other adjustment plate 15, until the mesh hoop 9 drives the screen 8 to cling to the inner wall of the groove 7, and the installation operation of the screen 8 is completed, and then the filter element 4 is placed in the through hole 3, so that it clings to the conduit 14, and the impurities can be filtered.

[0023] The sieve tube body 1 is provided with a fastener 5 that matches the through hole 3 and is close to the bottom surface of the filter element 4. The fastener 5 is screwed to the outer wall of the sieve tube body 1. The fastener 5 includes a fastening plate 10. The sieve tube body 1 is provided with an annular groove 11 that matches the fastening plate 10. The fastening plate 10 is penetrated with a plurality of bolts 12 that are screwed to the annular groove 11. The fastening plate 10 is provided with a sealing ring 13 that extends into the through hole 3 and is close to the inner wall of the through hole 3. The sealing ring 13 is arranged close to the bottom surface of the filter element 4 on the side away from the fastening plate 10;

[0024] Through the above structure, when installing the filter element 4, the fastener 5 is used to make the sealing ring 13 enter the through hole 3, and the fastening plate 10 enters the annular groove 11 until the sealing ring 13 is close to the bottom end of the filter element 4. Then, the bolt 12 is used to penetrate the fastening plate 10 and screw it into the annular groove 11, so that the filter element 4 can be quickly installed, so that it can adsorb impurities and facilitate centralized removal.

[0025] When the utility model is implemented, two clean screens 8 are first placed on the upper and lower ends of the fixed cylinder 6, and then the mesh hoop 9 is clamped into the groove 7, and the threaded screw 16 is rotated to make the adjustment plate 15 constantly close to the other adjustment plate 15, until the mesh hoop 9 drives the screen 8 to cling to the inner wall of the groove 7, and the installation operation of the screen 8 is completed, and then the filter 4 is placed in the through hole 3, so that it is close to the conduit 14, and the fastener 5 is used to make the sealing ring 13 enter the through hole 3, and the fastening plate 10 enters the annular groove 11, until the sealing ring 13 is close to the bottom end of the filter 4, and then the bolt 12 is used to penetrate the fastening plate 10 and screw it to the annular groove 11, so that the filter 4 can be quickly installed, so that it can adsorb impurities;

[0026] After a period of use, the bolt 12 is removed, the fastener 5 can be taken out, the filter element 4 is released and taken out, and the threaded screw 16 is rotated in the reverse direction to loosen the mesh hoop 9 and remove it, and the screen 8 can be taken out and replaced, so as to realize the cleaning operation of impurities and prevent the impurities from causing corrosion and wear on the inner wall of the screen tube.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A screen pipe with good corrosion resistance for oil mining, comprising a screen pipe body (1), characterized in that: A mounting plate (2) is provided inside one end of the sieve tube body (1), a through hole (3) is provided on the mounting plate (2), a filter element (4) is provided in the through hole (3), a fastener (5) is provided on the sieve tube body (1) and matches the through hole (3) and is in close contact with the bottom surface of the filter element (4), the fastener (5) is screwed to the outer wall of the sieve tube body (1), the filter element (4) comprises a fixing cylinder (6), a group of grooves (7) are symmetrically provided on the outer wall of the fixing cylinder (6), a sieve (8) extending into the groove (7) is provided at both ends of the fixing cylinder (6), and a mesh hoop sleeve (9) in close contact with the sieve element (8) is provided in the groove (7).

2. A screen pipe with good corrosion resistance for oil mining according to claim 1, characterized in that: The fastener (5) comprises a fastening plate (10), the screen tube body (1) is provided with an annular groove (11) matching the fastening plate (10), and the fastening plate (10) is penetrated by a plurality of bolts (12) matching and screwed with the annular groove (11).

3. A screen pipe with good corrosion resistance for oil mining according to claim 2, characterized in that: The fastening plate (10) is provided with a sealing ring (13) extending into the through hole (3) and in close contact with the inner wall of the through hole (3); the sealing ring (13) is arranged in close contact with the bottom surface of the filter element (4) on a side away from the fastening plate (10).

4. The corrosion-resistant screen pipe for oil mining according to claim 1 is characterized in that: The outer wall of one end of the mounting plate (2) away from the filter element (4) is fixedly connected to a conduit (14), and the diameter of the conduit (14) is smaller than the screen (8).

5. The corrosion-resistant screen pipe for oil mining according to claim 1 is characterized in that: The two ends of the mesh hoop sleeve (9) are connected with adjustment plates (15), and a threaded screw rod (16) is rotatably provided on the adjustment plate (15), and the threaded screw rod (16) is matched with another adjustment plate (15) in threaded connection.

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