Oil field oil extraction nozzle and using method thereof
The design of quick connectors and limiting sleeves solves the problem of difficult nozzle replacement in oil fields, enabling fast, safe, and efficient nozzle replacement and improving work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2024-11-22
- Publication Date
- 2026-05-22
AI Technical Summary
The existing process of replacing oil nozzles in oil fields is difficult, time-consuming, labor-intensive, and poses safety hazards.
By employing quick connectors and tools, and through the threaded connection between the inner threaded sleeve and the connecting threaded sleeve, combined with the design of the limiting sleeve and the fixing spring, the oilfield nozzle can be replaced quickly and safely.
It enables rapid, safe, and efficient replacement of oilfield nozzles, shortens replacement time, improves work efficiency, reduces downtime and labor costs, and has strong versatility and applicability, meeting environmental protection and energy-saving requirements.
Smart Images
Figure CN122071928A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of oilfield nozzle technology, specifically relating to oilfield nozzles and methods of using oilfield nozzles. Background Technology
[0002] With the increasing global energy demand, oilfield production technology, as a crucial means of energy supply, continues to receive widespread attention. Against this backdrop, multi-functional nozzles, as an important component of oilfield production technology, are increasingly highlighting the importance of technological innovation and development. Traditional oilfield production technologies mainly rely on the natural pressure of oil wells or artificially increasing pressure to extract oil from underground. With technological advancements, various new oilfield production technologies, such as hydraulic fracturing and horizontal drilling, have been widely applied, significantly improving oilfield production efficiency.
[0003] In existing oilfield nozzles, the nozzles are key components controlling oil flow, and their proper operation is crucial for oil production efficiency and safety. However, due to the harsh environment of oilfields, nozzles are prone to wear and blockage, requiring regular replacement. However, the current nozzle replacement process is difficult, time-consuming, labor-intensive, and poses safety hazards. Therefore, a new oilfield nozzle replacement technology is urgently needed to solve this problem. Summary of the Invention
[0004] The primary objective of this invention is to provide an oilfield nozzle that solves the technical problem that the replacement process of existing oilfield nozzles is difficult, time-consuming, and labor-intensive.
[0005] The second objective of this invention is to provide a method for using oilfield nozzles.
[0006] The first technical solution adopted in this invention is an oilfield nozzle, including a connecting cylinder, an oil inlet pipe is snapped into the end of the connecting cylinder, and the oil inlet pipe is connected to an oil spray pipe; a connecting threaded sleeve is fixedly connected to the outer wall of the end of the connecting cylinder, and multiple fixing rods are uniformly fixedly connected to the outer wall of the bottom of the oil inlet pipe, and the multiple fixing rods are snapped into the connecting threaded sleeve.
[0007] The invention is further characterized by: Multiple slots are evenly distributed on the connecting threaded sleeve, and the fixing rod corresponds to each slot. Limiting sleeves are symmetrically fixed on both sides of the top of the slots on the connecting threaded sleeve. At least one limiting sleeve has a fixing spring fixed inside. The free end of the fixing spring is fixed to a limiting block, which abuts against the side wall of the opposite limiting sleeve. The fixing rod passes through the point where the limiting block abuts against the side wall of the opposite limiting sleeve and enters the slot. The limiting block abuts against the fixing rod.
[0008] Multiple slots are evenly distributed on the connecting threaded sleeve, and the fixing rod corresponds to each slot. Limiting sleeves are symmetrically fixed on both sides of the top of the slots on the connecting threaded sleeve. A fixing spring is fixed inside each of the two limiting sleeves, and a limiting block is fixed to the free end of the fixing spring. The two limiting blocks are set to abut against each other. The fixing rod passes through the abutting point of the two limiting blocks and enters the slot. The two limiting blocks abut against the fixing rod.
[0009] The side wall of the limit block has rounded corners, which abut against the fixing rod.
[0010] A conical head is fixed to the bottom of the oil inlet pipe; multiple connecting shafts are fixed to the inner wall of the connecting cylinder along the circumference, and multiple separation plates are rotatably connected to the outer wall of the connecting shafts. The multiple separation plates are movably connected to each other, and a support spring is fixed to the bottom end of each separation plate. The support spring is fixed to the inner wall of the connecting cylinder; the conical head abuts against the multiple separation plates.
[0011] The separation plate has a fan-shaped cross-section, and the arc-shaped side of the separation plate abuts against the connecting shaft; one side of the connecting shaft is a flat surface, and the other side of the connecting shaft is an arc surface. The flat side of the connecting shaft abuts against the separation plate, and the arc surface side of the connecting shaft is fixed to the inner wall of the connecting cylinder.
[0012] The connecting screw sleeve is threaded with an internal screw sleeve.
[0013] The second technical solution adopted in this invention is a method for using an oilfield nozzle, which employs the aforementioned oilfield nozzle and is implemented according to the following steps: Step 1: When it is necessary to replace or clean the nozzle, first rotate the inner threaded sleeve to rotate it out from the outside of the connecting threaded sleeve, and then drag the inlet pipe and the injection pipe out from the outside of the connecting sleeve. Step 2: Replace or clean the nozzle. Align the fixing rod on the outside of the nozzle with the limiting sleeve and press it down. This will cause the fixing rod to exert force on the limiting block, causing the limiting block to move along the compression direction of the fixing spring. When the fixing rod enters the inner groove of the connecting sleeve, the limiting block will limit the fixing rod. Then, rotate the inner thread sleeve to connect the inner thread sleeve to the outer wall of the connecting sleeve, thus fixing the entire nozzle.
[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes quick connectors to achieve rapid, safe, and efficient replacement of oilfield nozzles, significantly shortening replacement time and improving work efficiency. Through specialized quick connectors and tools, this invention avoids the risks and safety hazards that may occur with traditional replacement methods. This invention is applicable to different types of oilfield nozzles, exhibiting strong versatility and applicability. This invention can improve replacement efficiency, reduce downtime and labor costs. This invention reduces waste generation during the replacement process, meeting environmental protection and energy conservation requirements. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the oilfield nozzle of the present invention; Figure 2 This is a schematic diagram of the structure of the fixing rod in the oilfield nozzle of the present invention; Figure 3 This is a schematic diagram of the limiting sleeve in the oilfield nozzle of the present invention; Figure 4 This is a schematic diagram of the connection structure between the separation plate and the support spring in the oilfield nozzle of the present invention; Figure 5 This is a schematic diagram of the limiting block in the oilfield nozzle of the present invention; Figure 6 This is a cross-sectional schematic diagram of the inner threaded sleeve in the oilfield nozzle of the present invention; In the diagram, 1. Connecting cylinder, 11. Oil inlet pipe, 12. Injection pipe, 2. Connecting threaded sleeve, 21. Fixing rod, 22. Inner threaded sleeve, 23. Connecting shaft, 24. Separating plate, 25. Support spring, 26. Limiting sleeve, 27. Fixing spring, 28. Limiting block. Detailed Implementation
[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0017] Example 1 like Figure 1-6 As shown, the oilfield nozzle disclosed in this embodiment includes a connecting cylinder 1, with an oil inlet pipe 11 snapped onto the end of the connecting cylinder 1, and the oil inlet pipe 11 connected to an oil injection pipe 12; a connecting threaded sleeve 2 is fixedly connected to the outer wall of the end of the connecting cylinder 1, and a plurality of fixing rods 21 are evenly fixedly connected to the outer wall of the bottom of the oil inlet pipe 11, and the plurality of fixing rods 21 are snapped onto the connecting threaded sleeve 2. An inner threaded sleeve 22 is threadedly connected to the connecting threaded sleeve 2.
[0018] In this embodiment, by setting a fixing rod 21 at the bottom of the oil inlet pipe 11, when disassembly or assembly is required, the oil inlet pipe 11 can be pulled straight relative to the connecting cylinder 1 to remove the oil inlet pipe 11 from the connecting threaded sleeve 2. Similarly, during assembly, the oil inlet pipe 11 can be pushed straight relative to the connecting cylinder 1 to engage with the connecting threaded sleeve 2, achieving quick installation. The purpose of threading the inner threaded sleeve 22 on the outer wall of the end of the connecting cylinder 1 is to fix the entire nozzle. When disassembling the oil inlet pipe 11, the inner threaded sleeve 22 is unscrewed from the connecting threaded sleeve 2. After installing the oil inlet pipe 11, the inner threaded sleeve 22 is connected to the connecting threaded sleeve 2.
[0019] Example 2 Based on embodiment 1, multiple slots are evenly opened on the connecting screw sleeve 2, and the fixing rod 21 corresponds to each slot. Limiting sleeves 26 are symmetrically fixed on both sides of the top of the slots on the connecting screw sleeve 2. At least one limiting sleeve 26 has a fixing spring 27 fixed inside. The free end of the fixing spring 27 is fixed to a limiting block 28. The limiting block 28 is slidably connected inside the limiting sleeve 26 and abuts against the side wall of the opposite limiting sleeve 26. The fixing rod 21 passes through the abutment between the limiting block 28 and the side wall of the opposite limiting sleeve 26 and enters the slot. The limiting block 28 abuts against the fixing rod 21.
[0020] In this embodiment, when disassembly and assembly are required, the oil inlet pipe 11 is pulled straight relative to the connecting sleeve 1 to remove the oil inlet pipe 11 from the connecting threaded sleeve 2. Specifically, the fixing rod 21 applies force to the limiting block 28, and the limiting block 28 moves in the compression direction of the fixing spring 27, so the fixing rod 21 can be taken out of the slot. The limiting block 28 moves in the direction of the rebound of the fixing spring 27 until the side wall of the limiting block 28 abuts against the side wall of the limiting sleeve 26. Similarly, during assembly, the oil inlet pipe 11 is pushed straight relative to the connecting sleeve 1 to engage the oil inlet pipe 11 with the connecting threaded sleeve 2, achieving quick installation. Specifically, the fixing rod 21 applies force to the limiting block 28, and the limiting block 28 moves in the compression direction of the fixing spring 27, so the fixing rod 21 can be placed into the slot. Then, the compression of the fixing spring 27 decreases, and the limiting block 28 moves in the direction of the rebound of the fixing spring 27, limiting the fixing rod 21.
[0021] Example 3 Based on embodiment 1, multiple slots are evenly opened on the connecting screw sleeve 2, and the fixing rod 21 corresponds to each slot. Limiting sleeves 26 are symmetrically fixed on both sides of the top of the slots on the connecting screw sleeve 2. A fixing spring 27 is fixed inside each of the two limiting sleeves 26. A limiting block 28 is fixed to the free end of the fixing spring 27. The limiting block 28 is slidably connected inside the limiting sleeve 26. The two limiting blocks 28 are set to abut against each other. The fixing rod 21 passes through the abutting part of the two limiting blocks 28 and enters the slot. The two limiting blocks 28 abut against the fixing rod 21.
[0022] In this embodiment, when disassembly and assembly are required, the oil inlet pipe 11 is pulled straight relative to the connecting sleeve 1 to remove the oil inlet pipe 11 from the connecting threaded sleeve 2. Specifically, the fixing rod 21 applies force to the limiting block 28, and the limiting block 28 moves in the compression direction of the fixing spring 27, so the fixing rod 21 can be taken out of the slot. The limiting block 28 moves in the direction of the rebound of the fixing spring 27 until the opposite side walls of the two limiting blocks 28 abut against each other. Similarly, during assembly, the oil inlet pipe 11 is pushed straight relative to the connecting sleeve 1 to engage the oil inlet pipe 11 with the connecting threaded sleeve 2, achieving quick installation. Specifically, the fixing rod 21 applies force to the limiting block 28, and the limiting block 28 moves in the compression direction of the fixing spring 27, so the fixing rod 21 can be placed into the slot. Then the compression of the fixing spring 27 decreases, and both limiting blocks 28 move in the direction of the rebound of the fixing spring 27, limiting the fixing rod 21.
[0023] Example 4 Based on embodiment 2 or 3, the side wall of the limiting block 28 is rounded, and the rounded corner abuts against the fixing rod 21.
[0024] In this embodiment, by providing rounded corners on the side wall of the limiting block 28, it is beneficial for the fixing rod 21 to apply a force toward the fixing spring 27.
[0025] Example 5 Based on Example 1, a conical head is fixedly connected to the bottom of the oil inlet pipe 11; multiple connecting shafts 23 are fixedly connected to the inner wall of the connecting cylinder 1 along the circumference, and multiple separation plates 24 are rotatably connected to the outer wall of the connecting shafts 23. The multiple separation plates 24 are movably connected to each other, and a support spring 25 is fixedly connected to the bottom end of each separation plate 24. The support spring 25 is fixedly connected to the inner wall of the connecting cylinder 1; the conical head abuts against the multiple separation plates 24.
[0026] In this embodiment, after the oil inlet pipe 11 and the oil injection pipe 12 are detached from the outside of the connecting cylinder 1, the conical head at the bottom of the oil inlet pipe 11 does not apply a downward force to the separating plate 24. At this time, the support spring 25 will apply an upward force to the separating plate 24, causing the separating plate 24 to rotate around the connecting shaft 23 as the axis, sealing the inside of the connecting cylinder 1 to prevent internal oil leakage. Then, the oil nozzle is cleaned or replaced with a new oil nozzle. Then, the oil inlet pipe 11 is installed. At this time, the conical head at the bottom of the oil inlet pipe 11 will apply a downward force to the separating plate 24, the support spring 25 is compressed, and the oil inlet pipe 11 is connected to the connecting cylinder 1.
[0027] Example 6 Based on Example 5, the cross-section of the separation plate 24 is fan-shaped, and the arc-shaped side of the separation plate 24 abuts against the connecting shaft 23.
[0028] This invention also discloses a method for using an oilfield nozzle, which is implemented using the aforementioned oilfield nozzle according to the following steps: Step 1: When it is necessary to replace or clean the nozzle, first rotate the inner threaded sleeve 22 to rotate the inner threaded sleeve 22 out from the outside of the connecting threaded sleeve 2, and then drag the oil inlet pipe 11 and the oil injection pipe 12 to pull the oil inlet pipe 11 and the oil injection pipe 12 out from the outside of the connecting cylinder 1. Step 2: Replace or clean the nozzle. Align the fixing rod 21 on the outside of the nozzle with the limiting sleeve 26 and press it down. This will cause the fixing rod 21 to exert force on the limiting block 28, causing the limiting block 28 to move along the compression direction of the fixing spring 27. When the fixing rod 21 enters the inner groove of the connecting sleeve 2, the limiting block 28 will limit the fixing rod 21. Then, rotate the inner thread sleeve 22 so that the inner thread sleeve 22 is threaded to the outer wall of the connecting sleeve 2, thus fixing the entire nozzle.
[0029] The working principle and process of this invention are as follows: When the nozzle needs to be replaced or cleaned, first rotate the inner threaded sleeve 22 to rotate it out from the outside of the connecting threaded sleeve 2. Then, drag the inlet pipe 11 and the injection pipe 12 to pull them out from the outside of the connecting cylinder 1. After the inlet pipe 11 and the injection pipe 12 are separated from the outside of the connecting cylinder 1, the support spring 25 will exert a force on the separation plate 24, causing the separation plate 24 to rotate around the connecting shaft 23, sealing the inside of the connecting cylinder 1 to prevent internal oil leakage. Then, clean or replace the nozzle with a new one. Come over and press down the fixing rod 21 on the outside of the nozzle, aligning it with the limiting sleeve 26. This will cause the fixing rod 21 to exert force on the limiting block 28, causing the limiting block 28 to move backward. When the fixing rod 21 enters the connecting sleeve 2, it will release the limiting block 28, causing the fixing spring 27 to push the limiting block 28, allowing the limiting block 28 to limit the fixing rod 21 and thus limit the entire nozzle. Then, rotate the inner thread sleeve 22 so that the inner thread sleeve 22 is threaded to the outer wall of the connecting sleeve 2, thus fixing the entire nozzle.
[0030] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An oilfield nozzle, characterized in that, Includes a connecting cylinder (1), with an oil inlet pipe (11) clamped at the end of the connecting cylinder (1), and an oil injection pipe (12) connected to the oil inlet pipe (11); a connecting screw sleeve (2) is fixed to the outer wall of the end of the connecting cylinder (1), and multiple fixing rods (21) are evenly fixed to the outer wall of the bottom of the oil inlet pipe (11), and the multiple fixing rods (21) are clamped to the connecting screw sleeve (2).
2. The oilfield nozzle according to claim 1, characterized in that, The connecting screw sleeve (2) has multiple slots evenly spaced, and the fixing rod (21) corresponds to each slot. The connecting screw sleeve (2) is symmetrically fixed to the two sides of the top of the slot. At least one of the limiting sleeves (26) has a fixing spring (27) fixed inside. The free end of the fixing spring (27) is fixed to a limiting block (28). The limiting block (28) slides inside the limiting sleeve (26) and abuts against the side wall of the opposite limiting sleeve (26). The fixing rod (21) passes through the abutment between the limiting block (28) and the side wall of the opposite limiting sleeve (26) and enters the slot. The limiting block (28) abuts against the fixing rod (21).
3. The oilfield nozzle according to claim 1, characterized in that, The connecting screw sleeve (2) has multiple slots evenly spaced, and the fixing rod (21) corresponds to each slot. The connecting screw sleeve (2) is symmetrically fixed to the two sides of the top of the slot. The two limiting sleeves (26) are fixedly connected to the inside of each limiting sleeve (26). The free end of the fixing spring (27) is fixedly connected to the limiting block (28). The limiting block (28) is slidably connected inside the limiting sleeve (26). The two limiting blocks (28) are set to abut against each other. The fixing rod (21) passes through the abutting point of the two limiting blocks (28) and enters the slot. The two limiting blocks (28) abut against the fixing rod (21).
4. The oilfield nozzle according to claim 2 or 3, characterized in that, The side wall of the limiting block (28) has rounded corners, which abut against the fixing rod (21).
5. The oilfield nozzle according to claim 1, characterized in that, A conical head is fixed to the bottom of the oil inlet pipe (11); multiple connecting shafts (23) are fixed to the inner wall of the connecting cylinder (1) along the circumference; multiple separation plates (24) are rotatably connected to the outer wall of the connecting shafts (23); the multiple separation plates (24) are movably connected to each other; a support spring (25) is fixed to the bottom end of each separation plate (24); the support spring (25) is fixed to the inner wall of the connecting cylinder (1); the conical head abuts against the multiple separation plates (24).
6. The oilfield nozzle according to claim 5, characterized in that, The separation plate (24) has a fan-shaped cross-section, and the arc-shaped side of the separation plate (24) abuts against the connecting shaft (23).
7. The oilfield nozzle according to claim 1, characterized in that, The connecting sleeve (2) is threaded with an inner thread sleeve (22).
8. The method of using the oilfield nozzle, using the oilfield nozzle as described in claim 4, is implemented according to the following steps: Step 1: When it is necessary to replace or clean the nozzle, first rotate the inner thread sleeve (22) to rotate the inner thread sleeve (22) out from the outside of the connecting thread sleeve (2), and then drag the oil inlet pipe (11) and the oil injection pipe (12) to pull the oil inlet pipe (11) and the oil injection pipe (12) out from the outside of the connecting cylinder (1); Step 2: Replace or clean the nozzle. Align the fixing rod (21) on the outside of the nozzle with the limiting sleeve (26) and press it down. The fixing rod (21) exerts force on the limiting block (28), causing the limiting block (28) to move along the compression direction of the fixing spring (27). When the fixing rod (21) enters the inner groove of the connecting sleeve (2), the limiting block (28) limits the fixing rod (21). Then rotate the inner sleeve (22) so that the inner sleeve (22) is threaded to the outer wall of the connecting sleeve (2) to fix the entire nozzle.