Scouring-resistant alloy oil nozzle

Abstract

The utility model discloses a scouring-resistant alloy oil nozzle, which belongs to the technical field of oil field oil extraction oil nozzles, and comprises an oil nozzle shell, a mounting slot is arranged in the oil nozzle shell, one end of the oil nozzle shell is provided with a through hole, and the other end of the oil nozzle shell is provided with an inner threaded hole. Two limiting inserting grooves are formed in one end of an inner cavity of the inner threaded hole, and an inner cavity of the mounting inserting groove is sleeved with a washing-resistant pipe. According to the anti-scouring oil nozzle, the installation inserting groove, the limiting inserting groove, the inner threaded hole, the outer threaded ring and the limiting inserting block are used in cooperation, so that the anti-scouring pipe is stably installed in the installation inserting groove in the oil nozzle shell, the anti-scouring pipe can be replaced, and oil gas flows in the overflowing hole in the anti-scouring pipe during oil gas exploitation; the washing-resistant pipe made of the tungsten carbide alloy prevents the oil nozzle from being damaged by sand carried in oil gas, and the service life of the nozzle is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of oilfield nozzle technology, and more specifically, to a erosion-resistant alloy nozzle. Background Technology

[0002] Oil extraction refers to the act of digging and extracting oil from areas with oil reserves. During oil extraction, oil and gas flow from the reservoir to the bottom of the well and then rise from the bottom to the wellhead. In oilfield production, nozzles are used to control the amount of oil produced, regulating the flow rate and pressure. Due to the long production time and high sand content in the oil and gas, nozzles are easily eroded, leading to damage to downstream production pipelines and necessitating frequent nozzle replacements. Therefore, we propose a erosion-resistant alloy nozzle. Utility Model Content

[0003] In view of the problems existing in the above-mentioned background technology, the purpose of this utility model is to provide an erosion-resistant alloy nozzle.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A erosion-resistant alloy nozzle includes a nozzle housing with an internal mounting slot. One end of the nozzle housing has a through hole, and the other end has an internally threaded hole. Two limiting slots are formed at one end of the internally threaded hole. An erosion-resistant tube is fitted into the inner cavity of the mounting slot, with one end of the erosion-resistant tube fitting against one end of the inner cavity of the mounting slot. Limiting blocks are fixedly connected to both sides of the other end of the erosion-resistant tube. The ends of the two limiting blocks are movably fitted into the inner cavity of the limiting slot. An externally threaded ring is threaded into the inner cavity of the internally threaded hole, and a clearance hole is provided on the inner side of the externally threaded ring. The inner wall of the clearance hole fits against the side of the erosion-resistant tube. A flow-through hole is provided in the middle of the erosion-resistant tube.

[0006] As a preferred embodiment of this utility model, the end face of the external threaded ring is provided with a plurality of internal hexagonal holes.

[0007] In a preferred embodiment of this utility model, the outer surface of the erosion-resistant tube is fitted to the inner wall of the mounting slot, and the inner diameter of the through hole is smaller than the inner diameter of one end of the flow hole.

[0008] In a preferred embodiment of this utility model, the inner wall of the limiting slot and the side of the limiting block are in contact with each other.

[0009] In a preferred embodiment of this utility model, one end of the external threaded ring is fitted with one end of the limiting insert, and the other end of the external threaded ring is flush with the other end of the oil nozzle housing.

[0010] As a preferred embodiment of this utility model, the erosion-resistant pipe is made of tungsten carbide alloy.

[0011] The advantages of this utility model are:

[0012] In this invention, the mounting slot, the limiting slot, the internal threaded hole, the external threaded ring, and the limiting block are used in combination to securely install the scour-resistant tube in the mounting slot inside the nozzle housing. The scour-resistant tube can be replaced, and during oil and gas extraction, oil and gas flow in the flow holes inside the scour-resistant tube. The scour-resistant tube, made of tungsten carbide alloy, prevents sand carried in the oil and gas from damaging the nozzle, thus ensuring the service life of the nozzle. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the present invention;

[0015] Figure 3 This is a cross-sectional schematic diagram of the nozzle housing of this utility model;

[0016] Figure 4 This is a schematic diagram of the erosion-resistant pipe of this utility model;

[0017] Figure 5 This is a schematic diagram of the external threaded ring of this utility model.

[0018] Explanation of the labels in the diagram:

[0019] 1. Oil nozzle housing; 2. Mounting slot; 3. Through hole; 4. Limiting slot; 5. Internal threaded hole; 6. Erosion-resistant tube; 7. Limiting block; 8. Flow hole; 9. External threaded ring; 10. Clearance hole; 11. Internal hexagonal hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] Please see Figure 1-5 A erosion-resistant alloy nozzle includes a nozzle housing 1, an installation slot 2 inside the nozzle housing 1, a through hole 3 at one end of the nozzle housing 1, and an internal threaded hole 5 at the other end of the nozzle housing 1. Two limiting slots 4 are opened at one end of the inner cavity of the internal threaded hole 5. An erosion-resistant tube 6 is fitted inside the inner cavity of the installation slot 2. One end of the erosion-resistant tube 6 is fitted with one end of the inner cavity of the installation slot 2. Limiting blocks 7 are fixedly connected to both sides of the other end of the erosion-resistant tube 6. The ends of the two limiting blocks 7 are movably fitted into the inner cavity of the limiting slot 4. An external threaded ring 9 is threadedly installed inside the inner cavity of the internal threaded hole 5. An avoidance hole 10 is provided on the inner side of the external threaded ring 9. The inner wall of the avoidance hole 10 is fitted with the side of the erosion-resistant tube 6. An overflow hole 8 is provided in the middle of the erosion-resistant tube 6.

[0025] In this embodiment, the flow passage 8 can be of variable diameter, and the flow velocity and pressure of the fluid flowing through it can be smoothly adjusted by the structure of the variable diameter flow passage 8.

[0026] For details, please refer to Figure 5 The end face of the external threaded ring 9 is provided with multiple internal hexagonal holes 11.

[0027] In this embodiment, the internal hexagonal hole 11 facilitates the rotation of the external threaded ring 9, so as to disassemble the external threaded ring 9.

[0028] For details, please refer to Figures 2 to 4The outer side of the erosion-resistant tube 6 fits against the inner wall of the mounting slot 2, and the inner diameter of the through hole 3 is smaller than the inner diameter of one end of the flow hole 8.

[0029] In this embodiment, gaps are avoided between the inner wall of the mounting slot 2 and the side of the erosion-resistant pipe 6, while the oil and gas flowing in the flow hole 8 can be smoothly discharged from the through hole 3.

[0030] For details, please refer to Figures 2 to 4 The inner wall of the limiting slot 4 and the side of the limiting insert 7 are in contact.

[0031] In this embodiment, the inner wall of the limiting slot 4 is used to limit the limiting plug 7, ensuring that the erosion-resistant tube 6 will not rotate in the inner cavity of the mounting slot 2.

[0032] For details, please refer to Figure 1 and Figure 4 One end of the external threaded ring 9 is in contact with one end of the limiting insert 7, and the other end of the external threaded ring 9 is flush with the other end of the oil nozzle housing 1.

[0033] In this embodiment, the end face of the external threaded ring 9 is used to limit the end face of the limiting plug 7, thereby ensuring the stability of the erosion resistant pipe 6 installed in the inner cavity of the mounting slot 2.

[0034] For details, please refer to Figure 1 and Figure 4 The erosion-resistant pipe 6 is made of tungsten carbide alloy.

[0035] In this embodiment, the erosion resistance of the nozzle is ensured by the erosion-resistant tube 6 made of tungsten carbide alloy.

[0036] Working principle: During use, oil and gas flow through the flow hole 8 inside the scour-resistant tube 6. The scour-resistant tube 6, made of tungsten carbide alloy, prevents damage to the nozzle from sand carried in the oil and gas. The scour-resistant tube 6 can be replaced. During replacement, an internal hexagonal wrench is inserted into the internal hexagonal hole 11, causing the external threaded ring 9 to rotate. This removes the external threaded ring 9, releasing it from the fixation of the scour-resistant tube 6. The scour-resistant tube 6 is then removed from the mounting slot 2 inside the nozzle housing 1. The replacement scour-resistant tube 6 is inserted into the mounting slot 2 inside the nozzle housing 1, causing the limiting block 7 on the side of the scour-resistant tube 6 to insert into the limiting slot 4. The external threaded ring 9 is then reinstalled into the internal threaded hole 5, using the end face of the external threaded ring 9 to limit the end of the limiting block 7. Finally, the scour-resistant tube 6 is installed in the mounting slot 2 inside the nozzle housing 1.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A erosion-resistant alloy nozzle, comprising a nozzle housing (1), characterized in that: The nozzle housing (1) has an internal mounting slot (2). One end of the nozzle housing (1) has a through hole (3). The other end of the nozzle housing (1) has an internal threaded hole (5). Two limiting slots (4) are opened at one end of the inner cavity of the internal threaded hole (5). A scour-resistant tube (6) is fitted inside the inner cavity of the mounting slot (2). One end of the scour-resistant tube (6) is in contact with one end of the inner cavity of the mounting slot (2). Limiting blocks (7) are fixedly connected to both sides of the other end of the scour-resistant tube (6). The ends of the two limiting blocks (7) are movably fitted into the inner cavity of the limiting slot (4). An external threaded ring (9) is threaded into the inner cavity of the internal threaded hole (5). An avoidance hole (10) is provided on the inner side of the external threaded ring (9). The inner wall of the avoidance hole (10) is in contact with the side of the scour-resistant tube (6). An overflow hole (8) is provided in the middle of the scour-resistant tube (6).

2. The erosion-resistant alloy nozzle according to claim 1, characterized in that: The end face of the external threaded ring (9) is provided with multiple internal hexagonal holes (11).

3. The erosion-resistant alloy nozzle according to claim 1, characterized in that: The outer side of the erosion-resistant tube (6) fits against the inner wall of the mounting slot (2), and the inner diameter of the through hole (3) is smaller than the inner diameter of one end of the flow hole (8).

4. The erosion-resistant alloy nozzle according to claim 1, characterized in that: The inner wall of the limiting slot (4) and the side of the limiting plug (7) are in contact.

5. The erosion-resistant alloy nozzle according to claim 1, characterized in that: One end of the external threaded ring (9) is in contact with one end of the limiting insert (7), and the other end of the external threaded ring (9) is flush with the other end of the oil nozzle housing (1).

6. The erosion-resistant alloy nozzle according to claim 1, characterized in that: The erosion-resistant tube (6) is made of tungsten carbide alloy.

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