Novel oil nozzle wrench for producing well

Abstract

The novel oil nozzle wrench comprises a sleeve and a poking needle, a sleeve head provided with a magnet block is fixed at the top end of the sleeve, an inner square structure which is the same as an outer square structure of an oil nozzle is arranged in an upper body of the sleeve head, and the magnet block is fixed in a top body of the sleeve head. An internal sealing piece is arranged in a lower body of the sleeve head; a poking needle is fixed at the upper end of a poking needle supporting rod which is in threaded connection with the sleeve; the poking needle can penetrate through an internal sealing element in the sleeve head to enter an oil nozzle hole of the oil nozzle; and the lower part of the sleeve is provided with a sleeve force application piece. The tool can be widely applied to assembly and disassembly of oil nozzles of electric pump wells and rod-pumped wells, the potential safety hazards that plugs of the oil nozzles are sprayed outwards at a high speed, an oil nozzle wrench is beaten away, and operators are injured are avoided, and the purpose of safe production is achieved. The tool has a simple structure, is convenient, quick and safe to operate in the process of replacing the oil nozzle, can effectively improve the working efficiency and the safety and reliability of the operation, and has a remarkable using effect.

Description

Technical Field

[0001] The utility model relates to a tool for disassembling and assembling a wellhead oil nozzle of an oil production well in the petroleum industry, in particular to a novel oil nozzle wrench used in the oil production well. Background Art

[0002] In the oil industry, the nozzles in the Christmas trees on the ground of oil wells are chokes used to control and regulate oil well production. During oil well production, nozzle wrenches are often used to replace nozzles. However, during oil well production, the nozzles often become clogged due to the presence of various impurities in the produced oil and gas.

[0003] When replacing a nozzle, the oil and gas in the wellhead process must first be vented. For wells with low crude oil viscosity, the pressure in the wellhead process pipeline can be easily vented during nozzle replacement. However, for wells with high crude oil viscosity, the pressure in the pipeline is difficult to vent during venting, which greatly inconveniences the nozzle replacement. If the residual pressure in the wellhead process is too high, there is also the safety risk of the nozzle flying out and breaking the nozzle wrench.

[0004] The traditional grease nipple wrench currently used in production sites consists of a socket and a socket head. It can only be used to install and remove the grease nipple. When installing and removing the grease nipple, it must be used in conjunction with a pipe wrench to rotate the socket to disassemble it. Its main disadvantages are:

[0005] 1. When the pressure in the pipeline between the nozzle seat and the production valve gate cannot be completely released, it is easy to cause the nozzle wrench to be hit and injure people and environmental pollution accidents, which poses a safety hazard and does not comply with safety production regulations.

[0006] 2. Before removing the oil nozzle, the common method to clear the oil nozzle is for the staff to hold a homemade piercing needle made of thin steel wire or iron wire to pierce the oil nozzle hole of the oil nozzle to be removed. Because the diameters of the oil nozzle hole and the steel wire are very small, it is difficult to align the homemade piercing needle with the oil nozzle hole. In actual work, multiple operations are required to succeed.

[0007] 3. When removing the nozzle, the removal of the nozzle is completely achieved by the friction between the outer square body of the nozzle and the inner square body of the sleeve. The nozzle is very easy to fall off from the sleeve and easily fall into the riser in the wellhead process. If it falls, it is necessary to realign the nozzle so that the outer square body of the nozzle and the inner square body of the sleeve are completely fitted together before the nozzle can be slowly taken out, resulting in low efficiency in replacing the nozzle.

[0008] In order to solve the above problems, there are currently several related patent technologies: Chinese patent application No. 201620170411.X discloses a nozzle wrench, which is a nozzle wrench used in oil wells in the petroleum industry. It is used to replace the nozzles installed in the Christmas tree, and is easy to operate and safe to use. The wrench includes a main body, the front end of which is a socket, and a piercing needle is installed in the main body. The piercing needle passes through the plug at the rear end of the main body and the center hole of the partition at the front, and then exits from the socket; a pressure relief hole is provided on the main body between the partition and the socket. The above utility model solves the problem that when routinely checking and replacing the nozzle, sometimes the nozzle is blocked, causing increased pressure, thick oil, or the nozzle was previously too tight. When removing the nozzle, the existing nozzle wrench requires other auxiliary tools and personnel to work together to complete the disassembly work, which greatly facilitates the disassembly and installation of the nozzle.

[0009] However, the above utility model still has defects, in that there is no anti-leakage mechanism when disassembling the oil nozzle, and oil and water may leak from the pressure release hole. In addition, the use of the piercing needle is not very convenient, and still needs to be improved.

[0010] Chinese patent application No. 202221584698.2 discloses a wrench for disassembling and assembling a nozzle. This utility model comprises a rod-shaped body, with an upper connector at its upper end capable of connecting to the nozzle of a Christmas tree, and a rotating portion at its lower end capable of driving the body for rotation. The upper connector is made of a magnetic material capable of adsorbing onto the nozzle of a Christmas tree. When the upper connector is connected to the nozzle of a Christmas tree, a magnetic attraction is generated between them. As a result, when an operator removes a removed Christmas tree nozzle from the Christmas tree pipeline, the upper connector magnetically secures the nozzle to the body, preventing the nozzle from detaching from the body due to slippage and falling into the Christmas tree pipeline, potentially affecting the proper operation of the tree.

[0011] The utility model of the wrench for disassembling and assembling the oil nozzle can reduce the probability of the oil nozzle falling off and has better applicability. However, the utility model only solves the problem of reducing the probability of the oil nozzle falling off and still needs to be improved.

[0012] Chinese patent application No. 201320068632.2 discloses a detachable magnetic oil nozzle socket wrench. The utility model comprises a rod connected to an operating handle, the other end of which is connected to a sleeve. A magnet is placed at the portion where the rod connects to the sleeve, and the magnet is connected to the sleeve via a fixing pin. The sleeve of the detachable magnetic oil nozzle socket wrench is placed over the oil nozzle, and after the oil nozzle is twisted, the oil nozzle is magnetically attracted, and the oil nozzle and the detachable magnetic oil nozzle socket wrench are removed together. The utility model has the advantage of providing a safe and secure operating environment for operators, freeing them from worry and avoiding unnecessary losses caused by a series of chain operation errors caused by not installing the oil nozzle due to fear of the oil nozzle falling into the oil nozzle sleeve. Furthermore, the utility model has a simple structure, quick operation, convenient processing and maintenance, practicality, and low cost. It effectively prevents the oil nozzle from falling out of the socket wrench and into the nozzle sleeve, thus ensuring normal production of the oil well.

[0013] However, although the above utility model provides a good safe operating environment for the operating staff and solves the problem of the oil nozzle falling off, it still needs to be improved.

[0014] In summary, the oil nozzle wrenches currently in use still need to be improved. Summary of the Invention

[0015] The purpose of this utility model is to provide a new type of nozzle wrench for use in oil production wells. It solves the problems of poor safety of existing nozzle wrenches during the process of replacing nozzles in oil production wells. Due to the high pressure in the pipeline in front of the nozzle after the nozzle is blocked, the obstruction in the nozzle is very likely to be ejected outward at high speed, injuring the operator and causing safety accidents. It is also difficult to align the needle with the nozzle hole when clearing the nozzle, and the nozzle is very likely to fall off the wrench when removing the nozzle. The utility model improves the safety of the nozzle wrench, improves the work efficiency of employees, and reduces the labor intensity of employees.

[0016] The technical solution of the utility model is: a new type of oil nozzle wrench used in oil wells, including a sleeve and a poking needle, a sleeve head equipped with a magnet block is fixed on the top of the sleeve, wherein: the upper body of the sleeve head is provided with an inner square structure identical to the outer square structure of the oil nozzle, the magnet block is fixed in the top body of the sleeve head, and the lower body of the sleeve head is equipped with an internal sealing component; the upper end of the poking needle support rod threadedly connected to the sleeve is fixed with the poking needle, and the poking needle can pass through the internal sealing component in the sleeve head and enter the oil nozzle hole of the oil nozzle; the lower part of the sleeve is equipped with a sleeve force applying member.

[0017] Preferably, the inner cavity of the sleeve head is a non-uniform diameter inner cavity and the inner diameter of the upper part is smaller than the inner diameter of the lower part, a partition is provided in the middle of the inner cavity, and a central hole for allowing the puncture needle to pass through is provided in the partition; an inner square structure identical to the outer square structure of the oil nozzle is provided in the inner cavity above the partition, and a sealing sleeve fixed to the top of the sleeve can be installed in the inner cavity below the partition; the sealing sleeve is fixed to the lower body of the sleeve head by fixing pins or screws.

[0018] Preferably, there are more than two fixing pins or screws between the sealing sleeve and the sleeve head, the sealing sleeve is provided with an internal seal installation cavity and the bottom of the cavity is provided with a center hole that can allow the puncture needle to pass through; the internal seal is a seal made of rubber, nylon or felt, and the internal seal is installed in the internal seal installation cavity in the sealing sleeve and is also provided with a center hole that can allow the puncture needle to pass through.

[0019] Preferably, a sealing plug is also installed on the outside of the sleeve between the sealing sleeve and the sleeve force member, and the outer circle of the sealing plug is provided with an external thread that can be connected to the nozzle sleeve of the oil nozzle; the upper inner cavity of the sealing plug is larger than the lower inner cavity, and an external seal can be installed in the upper inner cavity of the sealing plug.

[0020] Preferably, the outer circle of the sealing plug matches the inner circle of the nozzle sleeve of the oil nozzle that needs to be disassembled and assembled, and the sleeve can pass through the central hole of the external sealing component; a plug force member is installed on the lower outer circle of the sealing plug.

[0021] Preferably, the sleeve is a cylindrical body, the upper inner circle of the sleeve is equipped with a needle guide limit block, the lower inner circle is provided with a needle rotating section, and the top of the sleeve is welded to the sealing sleeve; the magnet block is an arc-shaped block body, and there are two of them, and the two magnet blocks are symmetrically embedded in the arc groove in the upper end body of the sleeve head.

[0022] Preferably, the sleeve is threadedly connected to the puncture needle guide limit block or welded; the puncture needle guide limit block is a cylinder with a tapered inner cavity and a central hole, and the puncture needle can pass through the central hole.

[0023] Preferably, the needle support rod is a non-uniform rod-shaped body, the outer diameter of the upper rod is smaller than the outer diameter of the lower rod, the needle is installed at the upper end of the rod body of the needle support rod and the external thread arranged on the outer circle of the lower rod body can be threadedly connected with the internal thread of the needle rotating section in the sleeve.

[0024] Preferably, the upper end rod body of the needle support rod is provided with an external thread and a needle mounting hole, and a longitudinal needle clamping groove is provided in the body around the needle mounting hole, and the external thread of the upper end rod body of the needle support rod can be threadedly connected with the needle clamping nut.

[0025] Preferably, there are more than two needle clamping grooves in the needle support rod, and the lower end of the needle support rod is equipped with a needle force applying member.

[0026] Compared with the prior art, the significant effects of the present invention are as follows: 1. Magnet blocks are symmetrically embedded at both ends of the top of the sleeve head, and the bottom is connected and fixed to the sealing sleeve with an internal seal installed and fixed to the top of the sleeve through a fixing pin. The internal seal is used to seal the oil nozzle during disassembly and assembly, preventing high-pressure oil and gas from spraying out of the oil nozzle, thereby improving the safety of the tool.

[0027] 2. The needle and sleeve are integrated. The needle support rod is threaded into the sleeve. The needle is mounted on the top of the needle support rod. The needle screws linearly into the sleeve and is securely positioned within the sleeve head and the nozzle hole by the needle guide stop. Thanks to the needle guide stop, the needle in this tool is easily aligned with the nozzle hole, making it easier to clear obstructions in the nozzle and effectively improving the efficiency of nozzle removal and replacement.

[0028] 3. In order to further improve the sealing and blowout prevention performance of this tool, a secondary sealing mechanism consisting of a sealing plug and an external seal is set up. The sealing plug equipped with the external seal is connected to the nozzle sleeve. The external seal completes the sealing and blowout prevention of the inner cavity of the nozzle sleeve, ensuring that the gas and liquid in the process pipeline cannot leak out through this tool, ensuring the safety of the use of this tool.

[0029] 4. As the tool is equipped with a sleeve force member, a needle force member and a screw plug force member, the oil nozzle can be quickly disassembled and assembled without the help of other tools, which is convenient and quick.

[0030] In summary, this tool can be widely used for installing and removing oil nozzles in electric pump wells and pumping unit wells, avoiding the safety hazards of oil nozzle blockages being ejected at high speed, the oil nozzle wrench being blown away, and injuries to operators, thereby achieving the goal of safe production. The utility model has a simple structure and is easy, quick, and safe to operate during the oil nozzle replacement process, which can effectively improve the work efficiency of employees and the safety and reliability of operations, and has a significant use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a cross-sectional view of the overall structure of the utility model; Figure 2 yes Figure 1 Schematic diagram of the structure of the middle puncture needle; Figure 3 yes Figure 1 The main view of the middle sleeve head; Figure 4 yes Figure 3Top view of the middle sleeve head; Figure 5 yes Figure 1 Schematic diagram of the structural analysis of the sealing plug.

[0032] In the figure: magnet block 1, sleeve head 2, internal seal 3, sealing sleeve 4, piercing needle guide limit block 5, sleeve 6, piercing needle 7, piercing needle clamping nut 8, piercing needle support rod 9, sleeve force member 10, piercing needle rotating section 11, piercing needle force member 12, fixing pin 13, external seal 14, sealing wire plug 15, wire plug force member 16. DETAILED DESCRIPTION

[0033] The accompanying drawings are for reference and illustration purposes only and are not intended to limit the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0036] See also Figure 1 - Figure 5A new type of oil nozzle wrench used in oil wells includes a sleeve 6 and a poking needle 7. A sleeve head 2 equipped with a magnet block 1 is fixed to the top of the sleeve 6, wherein: the upper body of the sleeve head 2 is provided with an inner square structure identical to the outer square structure of the oil nozzle, the magnet block 1 is fixed in the top body of the sleeve head 2, and the lower body of the sleeve head 2 is equipped with an internal seal 3; the upper end of the poking needle support rod 9 threadedly connected to the sleeve 6 is fixed with the poking needle 7, and the poking needle 7 can pass through the internal seal 3 in the sleeve head 2 and enter the oil nozzle hole of the oil nozzle; the lower part of the sleeve 6 is equipped with a sleeve force applying member 10.

[0037] The present invention comprises a magnet block 1, an internal seal 3, and a probing needle 7. The magnet block 1, located within the upper body of the sleeve head 2, attracts the nozzle within the inner square structure, preventing it from falling out of the sleeve head 2. To facilitate use and avoid the need for tools such as pipe wrenches to remove and install the nozzle, a sleeve force member 10 is installed below the sleeve 6, effectively improving nozzle removal and installation efficiency. The sleeve force member 10 can be a handwheel, handle, or force rod.

[0038] This tool fixes the needle 7 to the top of the needle support rod 9 threadedly connected to the sleeve 6. The needle 7 can pass through the internal seal 3 in the sleeve head 2 and enter the nozzle hole of the oil nozzle. This solves the problem of difficulty in aligning the nozzle hole because the diameters of the nozzle hole and the needle 7 are very small, facilitating operation and effectively improving work efficiency.

[0039] To address the problem of nozzle replacement in oil wells, where the high internal pressure in the pipeline ahead of the nozzle after the nozzle is clogged can easily cause the obstructed material in the nozzle to spray outward at high speed during the nozzle removal and unclogging process, injuring operators and causing safety accidents, this tool incorporates an internal seal 3 within the lower body of the sleeve head 2, allowing the piercing needle 7 to pass through the internal seal 3 and into the nozzle hole of the nozzle. This effectively solves the problem of existing nozzle wrenches causing obstructed material in the nozzle to spray outward at high speed during the nozzle removal and unclogging process, potentially injuring operators.

[0040] The utility model significantly improves the use safety of the existing oil nozzle wrench, improves the work efficiency of employees and reduces the labor intensity of employees, and has a significant use effect.

[0041] Based on the above embodiment 1, the present invention also has the following embodiments:

[0042] A preferred embodiment: the inner cavity of the sleeve head 2 is a non-uniform inner cavity and the inner diameter of the upper part is smaller than the inner diameter of the lower part, a partition is provided in the middle of the inner cavity, and a central hole is provided in the partition to allow the puncture needle 7 to pass through; an inner square structure identical to the outer square structure of the oil nozzle is provided in the inner cavity above the partition, and a sealing sleeve 4 fixed to the top of the sleeve 6 can be installed in the inner cavity below the partition; the sealing sleeve 4 is fixed to the lower body of the sleeve head 2 by a fixing pin 13 or a screw, and the fixing pin 13 or the screw is used to complete the connection and fixation of the sleeve head 2 and the sleeve 6.

[0043] A preferred embodiment: at least two fixing pins 13 or screws are provided between the sealing sleeve 4 and the sleeve head 2, the sealing sleeve 4 is provided with an internal seal installation cavity and a center hole is provided at the bottom of the cavity so that the puncture needle 7 can pass through; the internal seal 3 is a seal made of rubber, nylon or felt, and the internal seal 3 is installed in the internal seal installation cavity in the sealing sleeve 4 and is also provided with a center hole so that the puncture needle 7 can pass through.

[0044] A preferred embodiment: A sealing plug 15 is further installed on the outside of the sleeve 6 between the sealing sleeve 4 and the sleeve force member 10. The outer circle of the sealing plug 15 is provided with an external thread that can be connected to the nozzle sleeve of the oil nozzle; the upper inner cavity of the sealing plug 15 is larger than the lower inner cavity, and the external seal 14 can be installed in the upper inner cavity of the sealing plug 15. In order to further improve the sealing performance of the disassembled oil nozzle, this tool is provided with a secondary sealing mechanism consisting of a sealing plug 15 and an external seal 14. The sealing plug 15 equipped with the external seal 14 is connected to the oil nozzle sleeve, and the sealing of the inner cavity of the oil nozzle sleeve is completed by the external seal 14, ensuring that gas and liquid in the process pipeline cannot leak out through this tool, further enhancing the safety of use of this tool.

[0045] In a preferred embodiment, the outer circumference of the sealing plug 15 matches the inner circumference of the nozzle sleeve of the grease nozzle to be disassembled and assembled, and the center hole of the external seal 14 is large enough to pass through the sleeve 6. A plug force member 16 is mounted on the lower outer circumference of the sealing plug 15. To facilitate the threaded connection between the sealing plug 15 and the nozzle sleeve, the plug force member 16 is further mounted on the lower outer circumference of the sealing plug 15. The plug force member 16 can be a force rod, a force handle, or a handwheel.

[0046] A preferred embodiment: the sleeve 6 is a cylindrical body, the upper inner circle of the sleeve 6 is equipped with a needle guide limit block 5, the lower inner circle is provided with a needle rotating section 11, and the top of the sleeve 6 is welded to the sealing sleeve 4; the magnet block 1 is an arc-shaped block, and two pieces are provided. The two magnet blocks 1 are symmetrically embedded in the arc groove in the upper end body of the sleeve head 2, which has a greater adsorption effect on the oil nozzle.

[0047] In a preferred embodiment, the sleeve 6 is threadedly connected to or welded to the needle guide stopper 5; the needle guide stopper 5 is a cylindrical body with a tapered inner cavity and a central hole through which the needle 7 can pass. Because the nozzle hole in the nozzle is small and the needle 7 is also a slender rod, the needle guide stopper 5 is provided to facilitate the passage of the needle 7 through the sealing sleeve 4 and the inner seal 3.

[0048] A preferred embodiment: the puncture needle support rod 9 is a non-uniform rod-shaped body, the outer diameter of the upper rod is smaller than the outer diameter of the lower rod, the puncture needle 7 is installed at the upper end of the rod body of the puncture needle support rod 9 and the external thread arranged on the outer circle of the lower rod can be threadedly connected with the internal thread of the puncture needle rotating section 11 in the sleeve 6, so that the movement of the puncture needle 7 in the sleeve 6 is a centered linear motion.

[0049] In a preferred embodiment, the upper end of the needle support rod 9 is provided with an external thread and a needle mounting hole, and a longitudinal needle clamping groove is provided in the main body outside the needle mounting hole. The external thread of the upper end of the needle support rod 9 can be threadedly connected to the needle clamping nut 8. After the needle 7 is installed in the needle mounting hole, the needle clamping nut 8 is installed outside the needle clamping groove to ensure that the needle 7 is securely installed.

[0050] A preferred embodiment: the needle clamping grooves in the needle support rod 9 are provided with two or more, and the lower end of the needle support rod 9 is provided with a needle force member 12 to facilitate the screwing in and out of the needle 7. The needle force member 12 can be a hand wheel, a handle or a force rod.

[0051] The embodiments described above are merely typical embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and enlightenment of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the creative spirit and creative concept of the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection is not limited to the above description.

Claims

1. A new type of oil nozzle wrench used in oil wells, comprising a sleeve and a piercing needle, wherein a sleeve head equipped with a magnet block is fixed on the top of the sleeve, and wherein: The upper body of the sleeve head is provided with an inner square structure identical to the outer square structure of the oil nozzle, the magnet block is fixed in the top body of the sleeve head, and the lower body of the sleeve head is equipped with an internal seal; the upper end of the needle support rod threadedly connected to the sleeve is fixed with the needle, and the needle can pass through the internal seal in the sleeve head and enter the oil nozzle hole of the oil nozzle; the lower part of the sleeve is equipped with a sleeve force member.

2. The novel oil nozzle wrench for oil production wells as claimed in claim 1, characterized in that: The inner cavity of the sleeve head is a non-uniform diameter inner cavity and the inner diameter of the upper part is smaller than the inner diameter of the lower part. A partition is provided in the middle of the inner cavity, and a central hole is provided in the partition to allow the puncture needle to pass through; an inner square structure identical to the outer square structure of the oil nozzle is provided in the inner cavity above the partition, and a sealing sleeve fixed to the top of the sleeve can be installed in the inner cavity below the partition; the sealing sleeve is fixed to the lower body of the sleeve head by fixing pins or screws.

3. The novel oil nozzle wrench for oil production wells as claimed in claim 2, characterized in that: There are more than two fixing pins or screws between the sealing sleeve and the sleeve head. The sealing sleeve is provided with an internal sealing member installation cavity and a center hole is provided at the bottom of the cavity for a puncture needle to pass through. The internal seal is a seal made of rubber, nylon or felt. The internal seal is installed in the internal seal installation cavity in the sealing sleeve and is also provided with a center hole for a puncture needle to pass through.

4. A novel oil nozzle wrench for use in oil production wells as claimed in claim 2 or 3, characterized in that A sealing plug is also installed on the outside of the sleeve between the sealing sleeve and the sleeve force member. The outer circle of the sealing plug is provided with an external thread that can be connected to the nozzle sleeve of the oil nozzle; the upper inner cavity of the sealing plug is larger than the lower inner cavity, and an external seal can be installed in the upper inner cavity of the sealing plug.

5. The novel oil nozzle wrench for oil production wells as claimed in claim 4, characterized in that: The outer circle of the sealing plug matches the inner circle of the nozzle sleeve of the oil nozzle that needs to be disassembled and assembled, and the sleeve can pass through the central hole of the external sealing component; a plug force member is installed on the lower outer circle of the sealing plug.

6. A novel oil nozzle wrench for use in oil production wells as claimed in claim 4, characterized in that: The sleeve is a cylindrical body, the upper inner circle of the sleeve is equipped with a needle guide limit block, the lower inner circle is provided with a needle rotating section, and the top of the sleeve is welded to the sealing sleeve; the magnet block is an arc-shaped block body, and there are two of them. The two magnet blocks are symmetrically embedded in the arc groove in the upper end body of the sleeve head.

7. A novel oil nozzle wrench for use in oil production wells as claimed in claim 6, characterized in that: The sleeve is threadedly connected or welded to the puncture needle guide limit block; the puncture needle guide limit block is a cylinder with a tapered inner cavity and a center hole, and the puncture needle can pass through the center hole.

8. A novel oil nozzle wrench for use in oil production wells as claimed in claim 6, characterized in that: The needle support rod is a non-uniform rod-shaped body, the outer diameter of the upper rod is smaller than the outer diameter of the lower rod, the needle is installed at the upper end of the rod body of the needle support rod, and the external thread arranged on the outer circle of the lower rod can be threadedly connected with the internal thread of the needle rotating section in the sleeve.

9. A novel oil nozzle wrench for use in oil production wells as claimed in claim 8, characterized in that: The upper end rod body of the needle support rod is provided with an external thread and a needle mounting hole, and a longitudinal needle clamping groove is provided in the body around the needle mounting hole. The external thread of the upper end rod body of the needle support rod can be threadedly connected with the needle clamping nut.

10. A novel oil nozzle wrench for use in oil production wells as claimed in claim 9, characterized in that: There are more than two puncture needle clamping grooves in the puncture needle supporting rod, and a puncture needle force applying member is installed at the lower end of the puncture needle supporting rod.

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