Detachable erosion-resistant oil gas nozzle

Abstract

The utility model discloses a detachable erosion-resistant oil-gas nozzle, which belongs to the technical field of oil-gas field development field application and comprises an oil-gas nozzle main body, the oil-gas nozzle main body is of a hollow circular tubular structure, the hollow position of the oil-gas nozzle main body is provided with an installation flow channel, the top end of the oil-gas nozzle main body is provided with an air outlet, and the bottom end of the oil-gas nozzle main body is provided with an air inlet. The air outlet is communicated with the air inlet through the mounting flow channel; the erosion-resistant assembly is arranged in the mounting flow channel, and the erosion-resistant assembly is detachably connected with the oil gas nozzle main body; the mounting part is arranged on the outer wall of the oil gas nozzle main body, and the mounting part is fixedly connected with the oil gas nozzle main body. The oil gas nozzle solves the technical problem that the oil gas nozzle is easily damaged due to erosion in the use process, and achieves the technical effects of reducing erosion of high-speed airflow to the oil gas nozzle, reducing the replacement frequency of the oil gas nozzle and reducing the maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of on-site application of oil and gas field development, in particular to a detachable erosion-resistant oil and gas nozzle. Background Art

[0002] In the process of gas well production, ground throttling usually adopts changing the size of the oil and gas nozzle to control the airflow speed and pressure from the bottom of the well to the ground, so as to achieve production flexibility, effectively control the high-pressure airflow to enter the gathering and transportation system, and prevent safety accidents such as blowouts. The gas flow rate in some gas wells, especially shale gas wells, is very fast in the wellbore. When the high-speed airflow passes through the oil and gas nozzle with a variable cross-section, the airflow state will change significantly. This change will cause the airflow to erode the inlet end face, inner wall, and outlet end face of the oil and gas nozzle. This erosion is unevenly distributed in the axial direction of the oil and gas nozzle, which may cause the oil and gas nozzle to fail prematurely, thereby affecting the normal production of the gas well;

[0003] In the prior art, commonly used oil and gas nozzles are made of materials such as carbon steel, which have average erosion resistance and are easily damaged by erosion during use. At the same time, hard objects such as sand and gravel carried during natural gas extraction can easily damage the threads of the oil and gas nozzles, causing them to leak and require frequent replacement, which not only affects the safe production of oil and gas wells, but also increases maintenance costs. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a detachable erosion-resistant oil and gas nozzle, comprising:

[0005] The main body of the oil and gas nozzle is a circular tubular structure with a hollow interior, wherein the hollow portion is a mounting flow channel, an air outlet is provided at the top of the main body of the oil and gas nozzle, and an air inlet is provided at the bottom of the main body of the oil and gas nozzle, wherein the air outlet and the air inlet are connected through the mounting flow channel;

[0006] An erosion-resistant component, the erosion-resistant component is arranged in the installation flow channel, and the erosion-resistant component is located between the air outlet and the air inlet;

[0007] Wherein, the erosion-resistant component is detachably connected to the oil and gas nozzle body;

[0008] The mounting part is arranged on the outer wall of the oil and gas nozzle body and is fixedly connected to the oil and gas nozzle body. The mounting part is used to fix and assemble the oil and gas nozzle body to an external oil and gas wellhead.

[0009] Optionally, the erosion-resistant component comprises:

[0010] An injection pipeline, wherein the injection pipeline is disposed in the installation flow channel and is movably connected to the installation flow channel;

[0011] Wherein, the injection pipeline is a tubular structure with an inner through-hole, the outer diameter of the injection pipeline is adapted to the inner diameter of the installation flow channel, and the length of the injection pipeline is adapted to the height of the oil and gas nozzle body;

[0012] A plurality of erosion-resistant strips, wherein the plurality of erosion-resistant strips are evenly arranged on the inner wall of the injection pipe, and the plurality of erosion-resistant strips are fixedly connected to the inner wall of the injection pipe;

[0013] A bottom plate is arranged at the bottom end of the oil and gas nozzle body, the bottom plate is fixedly connected to the injection pipeline, and an opening having the same inner diameter as the injection pipeline is opened at the center of the bottom plate.

[0014] Optionally, the erosion-resistant strip is a rib-shaped annular structure with a triangular cross-section, and the upper and lower surfaces of the erosion-resistant strip are inclined surfaces.

[0015] Optionally, the mounting portion includes:

[0016] A disassembly component, wherein the disassembly component is disposed on the outer wall of the oil and gas nozzle body, and the disassembly component is fixedly connected to the outer wall of the oil and gas nozzle body;

[0017] External threads are arranged on the outer wall of the oil and gas nozzle body and are located at the air inlet, so that under the action of the external threads, the oil and gas nozzle body is threadedly connected to the oil and gas wellhead.

[0018] Optionally, the disassembly component is an external hexagonal fixing nut.

[0019] Optionally, the bottom plate and the plurality of erosion-resistant strips are integrally formed with the injection pipe.

[0020] Optionally, the injection pipe and the plurality of erosion-resistant strips are made of wear-resistant and corrosion-resistant rubber materials.

[0021] Optionally, the surfaces of the injection pipe and the plurality of erosion-resistant strips are coated with an erosion-resistant wear coating.

[0022] By adopting the above technical solution, the utility model mainly has the following technical effects:

[0023] By providing an erosion-resistant component and arranging the erosion-resistant component in the main body of the oil and gas nozzle, the erosion of the oil and gas nozzle by the high-speed airflow is reduced, the number of times the oil and gas nozzle is replaced is reduced, and the maintenance cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a detachable erosion-resistant oil and gas nozzle of the utility model;

[0025] Figure 2This is a schematic cross-sectional view of a detachable erosion-resistant oil and gas nozzle of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of an erosion-resistant component of a detachable erosion-resistant oil and gas nozzle of the utility model;

[0027] Figure 4 The utility model is a schematic diagram of the erosion-resistant strip structure of a detachable erosion-resistant oil and gas nozzle.

[0028] The meanings of the reference numerals are as follows:

[0029] 1. Oil and gas nozzle body; 11. Install the flow channel;

[0030] 2. Erosion-resistant components; 21. Injection pipe; 22. Erosion-resistant strips; 23. Bottom plate;

[0031] 3. Installation part; 31. Disassembly and assembly part; 32. External thread. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the specification of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] Example:

[0035] See also Figure 1-Figure 4The utility model provides a detachable erosion-resistant oil and gas nozzle. In practical application, it is used to reduce the erosion of the oil and gas nozzle by high-speed airflow, reduce the number of oil and gas nozzle replacements, and reduce maintenance costs. It includes an oil and gas nozzle body 1, an erosion-resistant component 2, and a mounting portion 3. The oil and gas nozzle body 1 is a circular tubular structure with a hollow interior, and its hollow portion is a mounting flow channel 11. An air outlet is provided at the top of the oil and gas nozzle body 1, and an air inlet is provided at the bottom of the oil and gas nozzle body 1. The air outlet and the air inlet are connected through the mounting flow channel 11 to realize the gas in the well being ejected from the air inlet to the air outlet. Preferably, the oil and gas nozzle body 1 is made of common stainless steel material, which is easy to replace and reduces maintenance costs. The erosion-resistant component 2 is arranged in the mounting flow channel 11. In order to facilitate the replacement and maintenance of the erosion-resistant component 2, the erosion-resistant component 2 is detachably connected to the oil and gas nozzle body 1, and the erosion-resistant component 2 is used to protect the oil and gas nozzle body 1. The mounting portion 3 is arranged on the outer wall of the oil and gas nozzle body 1, and the mounting portion 3 is fixedly connected to the oil and gas nozzle body 1, so that under the action of the mounting portion 3, the oil and gas nozzle body 1 is fixedly assembled with the external oil and gas wellhead. In this embodiment, when in use, the staff installs the oil and gas nozzle body 1 at the oil and gas wellhead through the mounting portion 3, so that the air inlet is immersed in the oil and gas wellhead, and the gas sprayed from the wellhead enters the oil and gas nozzle body 1, and then is buffered under the erosion-resistant component 2 and then sprayed from the air outlet. The erosion-resistant component 2 can guide the fluid to redirect, increase the fluid flow resistance, and reduce the impact force of the local area, thereby reducing the erosion of the gas on the oil and gas nozzle body 1. When maintenance is required, the oil and gas nozzle body 1 is disassembled by rotating the mounting portion 3, and only the erosion-resistant component 2 in the oil and gas nozzle body 1 needs to be replaced, and the oil and gas nozzle body 1 does not need to be replaced. The purpose of slowing down the erosion of the oil and gas nozzle by high-speed airflow, reducing the number of oil and gas nozzle replacements, and reducing maintenance costs is achieved.

[0036] In this embodiment, the erosion-resistant assembly 2 includes an injection pipe 21, a plurality of erosion-resistant strips 22 and a bottom plate 23. The injection pipe 21 is arranged in the installation flow channel 11, and the injection pipe 21 is movably connected to the installation flow channel 11, that is, the injection pipe 21 is movably inserted in the installation flow channel 11 of the oil and gas nozzle body 1, so that the injection pipe 21 can be quickly installed in the installation flow channel 11 and can be disassembled. The injection pipe 21 is a tubular structure with an internal penetration, and the internal penetration is a gas flow channel, so that the gas entering the oil and gas nozzle body 1 is ejected through the injection pipe 21. The outer diameter of the injection pipe 21 is adapted to the diameter of the installation flow channel 11, and the length of the injection pipe 21 is adapted to the oil and gas nozzle body 1, that is, the length and width of the injection pipe 21 are the same as the oil and gas nozzle, so as to fully cover the oil and gas nozzle body 1, thereby protecting the entire oil and gas nozzle body 1. The erosion-resistant strip 22 is a rib-shaped annular structure with a triangular cross section. The upper and lower surfaces of the erosion-resistant strip 22 are inclined surfaces. The design of the inclined surface can disperse the force of the gas impact over a wider area, thereby reducing the concentrated impact on a specific point, which helps to reduce the damage or wear caused by the impact. When solid particles move with the fluid, they disperse after impacting the erosion-resistant strip 22, reducing the eddy current and vibration generated by the high-speed airflow directly impacting the wall. Several erosion-resistant strips 22 are evenly arranged on the inner wall of the injection pipe 21, and the erosion-resistant strips 22 are fixedly connected to the inner wall of the injection pipe 21. Each erosion-resistant strip 22 is spaced at the same distance in the injection pipe 21. Multiple erosion-resistant strips 22 are combined and buffered at the same time, which can reduce the impact of gas on the oil and gas nozzle body 1 and increase the service life. The bottom plate 23 is arranged at the bottom end of the oil and gas nozzle body 1, and an opening with the same inner diameter as the injection pipe 21 is opened at the center of the bottom plate 23. The area of ​​the bottom plate 23 is equal to the area of ​​the bottom end of the oil and gas nozzle body 1, and the top of the bottom plate 23 is fixedly connected to the injection pipe 21. On the one hand, the injection pipe 21 can be confined in the installation flow channel 11 under the action of the bottom plate 23, preventing the high-speed airflow from rushing the injection pipe 21 out of the oil and gas nozzle body 1 during jetting. On the other hand, the bottom plate 23 can also protect the bottom end of the oil and gas nozzle body 1 from directly facing the impact of the gas, further improving the service life of the oil and gas nozzle body 1, and at the same time it also acts as a gasket to improve the airtightness between the oil and gas nozzle body 1 and the external wellhead. Preferably, the base plate 23 and the plurality of erosion-resistant strips 22 are integrally formed with the injection pipe 21. The integrally formed structure can improve the strength and durability of the erosion-resistant component 2, while avoiding defects such as gaps and pores caused by uneven mold splicing or pouring, and making the surface smoother and flatter.

[0037] In this embodiment, the injection pipe 21 and the plurality of erosion-resistant strips 22 are made of wear-resistant and corrosion-resistant rubber material, which may be polyurethane rubber. The rubber material allows the injection pipe 21 to fit tightly in the installation flow channel 11, strengthens the air tightness between the erosion-resistant component 2 and the oil and gas nozzle body 1, and improves the stability of the oil and gas nozzle's safe production. Preferably, the surfaces of the injection pipe 21 and the plurality of erosion-resistant strips 22 are coated with an erosion-resistant wear coating, which may be a ceramic polymer mixed coating.

[0038] In this embodiment, the mounting portion 3 includes a disassembly component 31 and an external thread 32. The disassembly component 31 is sleeved on the outer wall of the oil and gas nozzle body 1, and the disassembly component 31 is fixedly connected to the outer wall of the oil and gas nozzle body 1. Since the outside of the oil and gas nozzle body 1 is a cylinder, it is not convenient to fasten and install it and quickly disassemble it from the external oil and gas wellhead in actual use. Therefore, the disassembly component 31 is fixedly arranged on the oil and gas nozzle body 1, which can facilitate the staff to use common tools to install or disassemble the oil and gas nozzle body 1, thereby improving work efficiency. Preferably, the disassembly component 31 can be an external hexagonal fixing nut, which is low in cost and widely used, and can reduce the difficulty of on-site application. The external thread 32 is arranged at the air inlet at the lower part of the oil and gas nozzle body 1, and the external thread 32 is used to be threadedly connected to the oil and gas wellhead so that the air inlet is connected to the wellhead for exhaust.

[0039] Finally, it should be noted that the embodiments of the present invention disclose only preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A detachable erosion-resistant oil and gas nozzle, characterized in that: include: An oil and gas nozzle body (1), the oil and gas nozzle body (1) is a circular tubular structure with a hollow interior, the hollow portion of which is a mounting flow channel (11), an air outlet is provided at the top end of the oil and gas nozzle body (1), an air inlet is provided at the bottom end of the oil and gas nozzle body (1), and the air outlet and the air inlet are connected through the mounting flow channel (11); An erosion-resistant component (2), the erosion-resistant component (2) being arranged in the installation flow channel (11), and the erosion-resistant component (2) being located between the air outlet and the air inlet; Wherein, the erosion-resistant component (2) and the oil and gas nozzle body (1) are detachably connected; A mounting portion (3), wherein the mounting portion (3) is arranged on the outer wall of the oil and gas nozzle body (1), and the mounting portion (3) is fixedly connected to the oil and gas nozzle body (1), and the mounting portion (3) is used to fix and assemble the oil and gas nozzle body (1) to an external oil and gas wellhead.

2. The detachable erosion-resistant oil and gas nozzle according to claim 1, characterized in that: The erosion-resistant component (2) comprises: an injection pipeline (21), the injection pipeline (21) being arranged in the installation flow channel (11), and the injection pipeline (21) being movably connected to the installation flow channel (11); The injection pipe (21) is a tubular structure with a through-hole, the outer diameter of the injection pipe (21) is matched with the inner diameter of the installation flow channel (11), and the length of the injection pipe (21) is matched with the height of the oil and gas nozzle body (1); A plurality of erosion-resistant strips (22), wherein the plurality of erosion-resistant strips (22) are evenly arranged on the inner wall of the injection pipe (21), and the plurality of erosion-resistant strips (22) are fixedly connected to the inner wall of the injection pipe (21); A bottom plate (23), the bottom plate (23) being arranged at the bottom end of the oil and gas nozzle body (1), the bottom plate (23) being fixedly connected to the injection pipe (21), and an opening having the same inner diameter as the injection pipe (21) being opened at the center of the bottom plate (23).

3. The detachable erosion-resistant oil and gas nozzle according to claim 2, characterized in that: The erosion-resistant strip (22) is a rib-shaped annular structure with a triangular cross section, and the upper and lower surfaces of the erosion-resistant strip (22) are inclined surfaces.

4. The detachable erosion-resistant oil and gas nozzle according to claim 1, characterized in that: The mounting portion (3) comprises: A disassembly component (31), wherein the disassembly component (31) is arranged on the outer wall of the oil and gas nozzle body (1), and the disassembly component (31) is fixedly connected to the outer wall of the oil and gas nozzle body (1); An external thread (32) is provided on the outer wall of the oil and gas nozzle body (1) and is located at the air inlet, so that under the action of the external thread (32), the oil and gas nozzle body (1) is threadedly connected to the oil and gas wellhead.

5. The detachable erosion-resistant oil and gas nozzle according to claim 4, characterized in that: The disassembly and assembly part (31) is an external hexagonal fixing nut.

6. The detachable erosion-resistant oil and gas nozzle according to claim 2, characterized in that: The bottom plate (23) and the plurality of erosion-resistant strips (22) are integrally formed with the injection pipe (21).

7. The detachable erosion-resistant oil and gas nozzle according to claim 2, characterized in that: The injection pipe (21) and the plurality of erosion-resistant strips (22) are both made of wear-resistant and corrosion-resistant rubber material.

8. The detachable erosion-resistant oil and gas nozzle according to claim 2, characterized in that: The surfaces of the injection pipe (21) and the plurality of erosion-resistant strips (22) are coated with an erosion-resistant wear coating.

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