Sucker rod wax collection device with ultrasonic wax removal function and method

Through the ultrasonic wax removal device combined with heating and scraping wax sheets, the problems of low efficiency and environmental pollution of traditional wax removal methods are solved, efficient and environmentally friendly wax stain removal is achieved, and the service life of the oil suction rod is extended.

CN120487001APending Publication Date: 2025-08-15XI'AN PETROLEUM UNIVERSITY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510715002.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-08-15

AI Technical Summary

Technical Problem

Traditional mechanical wax scraping and chemical wax removal methods are inefficient and harmful to the equipment and the environment. It is difficult to effectively remove wax stains with strong adhesion, which increases maintenance and production costs and poses safety hazards.

Method used

Ultrasonic wax removal device is adopted, combined with a heater and a wax scraper, and the wax viscosity is reduced through high-frequency ultrasonic oscillation and heating. The wax is collected using a spiral diversion tank to achieve automatic wax removal.

Benefits of technology

Quickly and effectively remove wax stains from the surface of the suction rod, extend the service life of the equipment, reduce energy consumption and environmental pollution, reduce maintenance costs, and improve wax removal efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120487001A_ABST
    Figure CN120487001A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of oil exploitation, in particular to a sucker rod wax collecting device with an ultrasonic wax removal function and a method. The sucker rod wax collecting device comprises a main body, a sucker rod wax collecting assembly is arranged on the side face of the main body, and a control assembly is fixedly connected to the side face of the main body; wax on the surface of the sucker rod can be collected through the wax collecting container, the wax collecting container is of a hollow cylindrical structure, the spiral flow guide groove is formed in the inner wall of the wax collecting container and used for guiding the wax to flow and collecting the wax in a centralized mode, and the sucker rod channel is located in the center of the wax collecting container and used for containing the sucker rod. According to the wax removing device for the sucker rod, the sucker rod can smoothly pass in the up-and-down movement process, wax dirt on the surface of the sucker rod is oscillated through high-frequency ultrasonic waves generated by the ultrasonic generator to be loosened and fall off, the wax dirt on the surface of the sucker rod can be rapidly and effectively removed through the synergistic effect of high-frequency oscillation of the ultrasonic waves and the heater, and the wax removing efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of oil extraction, in particular to a sucker rod wax collecting device and method with ultrasonic wax removal function. Background Art

[0002] During oil extraction, the sucker rod is a crucial component used to pump crude oil from the well to the surface. However, during the extraction process, wax in the crude oil can deposit on the surface of the sucker rod, forming wax scale. This shortens the rod's service life and increases energy consumption during the extraction process.

[0003] Traditional wax removal methods include mechanical scraping, chemical dewaxing, etc. Mechanical scraping is slow, especially for thicker wax stains, which require multiple scrapings. The scraping process will cause wear to the surface of the sucker rod or oil pipe, affecting the service life of the equipment. The scraped wax stains need to be cleaned manually regularly, which increases maintenance costs. For wax stains with strong adhesion, the scraping effect is limited and difficult to completely remove. The chemicals required for chemical dewaxing are expensive and need to be added regularly, which increases production costs. Chemicals may cause pollution to soil, water sources, etc., and do not meet environmental protection requirements. Some chemicals are corrosive or toxic, posing a threat to the safety of operators and equipment. Long-term use of chemicals may corrode sucker rods, oil pipes and other downhole equipment. Therefore, a sucker rod wax collection device with ultrasonic dewaxing function is needed to improve the above problems. Summary of the Invention

[0004] In order to solve the problem that traditional wax removal methods include mechanical scraping, chemical dewaxing, etc., mechanical scraping is slow, especially for thicker wax stains, which need to be scraped multiple times. The scraping process will cause wear to the surface of the sucker rod or oil pipe, affecting the service life of the equipment. The scraped wax stains need to be cleaned manually regularly, which increases maintenance costs. For wax stains with strong adhesion, the scraping effect is limited and it is difficult to completely remove them. The chemicals required for chemical dewaxing are expensive and need to be added regularly, which increases production costs. Chemicals may cause pollution to soil, water sources, etc., and do not meet environmental protection requirements. Some chemicals are corrosive or toxic, posing a threat to the safety of operators and equipment. Long-term use of chemicals may corrode sucker rods, oil pipes and other downhole equipment. The purpose of the present invention is to provide a sucker rod wax collection device with ultrasonic wax removal function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A sucker rod wax collecting device with ultrasonic wax removal function comprises a main body, a sucker rod wax collecting assembly is provided on the side of the main body, and a control assembly is fixedly connected to the side of the main body;

[0007] The main body includes a mounting rod;

[0008] The sucker rod wax collecting assembly includes a wax collecting container, the top of the mounting rod is fixedly connected to a top plate, a telescopic rod is installed on the top of the top plate, the output end of the telescopic rod is fixedly connected to the sucker rod body, an ultrasonic generator is installed on the side of the wax collecting container, and a heater is installed at the bottom of the wax collecting container.

[0009] As a preferred solution of the present invention, the wax collecting container is a hollow cylindrical structure, and a spiral guide groove is provided on the inner wall of the container.

[0010] As a preferred solution of the present invention, a sucker rod channel is provided at the center of the wax collecting container for accommodating the sucker rod, and a wax scraper is installed in the sucker rod channel, and a plurality of wax scrapers are provided.

[0011] As a preferred solution of the present invention, the control assembly includes a control box, an operating screen is fixedly connected to the side of the control box, and a knob switch is provided on the side of the control box.

[0012] As a preferred solution of the present invention, a working indicator light is fixedly connected to the side of the control box, and a lighted button is provided on the side of the control box.

[0013] As a preferred solution of the present invention, a clamp is provided on the side of the mounting rod, and the wax collecting container is provided inside the clamp.

[0014] As a preferred solution of the present invention, the bottom of the mounting rod is fixedly connected to a bottom plate, and the bottom plate is made of stainless steel.

[0015] As a preferred solution of the present invention, the bottom of the base plate is fixedly connected with footings, and three footings are provided.

[0016] As a preferred embodiment of the present invention, a method for using a sucker rod wax collecting device with an ultrasonic wax removal function is provided, wherein the method comprises the following steps:

[0017] S1. Fix the wax collecting container to the side of the mounting rod through a clamp, so that the sucker rod body passes through the sucker rod channel in the center of the wax collecting container;

[0018] S2. Start the heater through the control component to raise the temperature in the wax collection container to 40-60°C to reduce the viscosity of the wax;

[0019] S3, synchronously start the ultrasonic generator to emit ultrasonic waves at a frequency of 20-40kHz to perform high-frequency oscillation on the wax scale on the surface of the sucker rod;

[0020] S4. The telescopic rod drives the sucker rod body to move up and down. The wax scraper in the sucker rod channel first scrapes off the wax stains. The loose wax flows into the bottom of the wax collecting container under the guidance of the spiral guide groove and is collected.

[0021] As a preferred embodiment of the present invention, a method for using a sucker rod wax collecting device with ultrasonic wax removal function further includes:

[0022] S5. The control component presets the ultrasonic frequency, heating temperature and sucker rod movement parameters through the operation screen;

[0023] S6. The working indicator light displays the equipment operating status in real time. When the wax in the wax collection container reaches the set capacity, the button with light triggers the alarm;

[0024] S7. The operator stops the equipment by turning the knob, removes the wax container, cleans the wax, and reinstalls it before continuing to use.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. In the present invention, the wax on the surface of the sucker rod can be collected by utilizing a wax collecting container. The wax collecting container is a hollow cylindrical structure, and its inner wall is provided with a spiral guide groove for guiding the flow of wax and collecting it centrally. The sucker rod channel is located at the center of the wax collecting container, which is used to accommodate the sucker rod so that the sucker rod can pass smoothly during the up and down movement. The high-frequency ultrasonic wave generated by the ultrasonic generator oscillates the wax stains on the surface of the sucker rod to loosen and fall off. The synergistic effect of the high-frequency oscillation of the ultrasonic wave and the heater can quickly and effectively remove the wax stains on the surface of the sucker rod, thereby improving the wax removal efficiency. Compared with the traditional chemical wax removal method, the present invention does not use chemical agents, avoids pollution to the environment, and reduces energy consumption.

[0027] 2. In the present invention, a heater is installed at the bottom of the wax collecting container to heat the wax in the wax collecting container, reduce the viscosity of the wax, and facilitate the flow and collection of the wax. A plurality of wax scrapers are installed in the sucker rod channel to preliminarily scrape off the wax stains on the surface of the sucker rod. The shape of the wax scrapers matches the outer surface of the sucker rod and can scrape off the wax stains during the up and down movement of the sucker rod. By timely removing the wax stains on the surface of the sucker rod, the corrosion and wear of the sucker rod by the wax stains are reduced, thereby extending the service life of the sucker rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic structural diagram of the sucker rod wax collecting assembly of the present invention;

[0030] Figure 3 This is a schematic structural diagram of the loading support assembly of the present invention;

[0031] Figure 4 Schematic diagram of the control component structure of the present invention.

[0032] In the figure: 1. Main body; 101. Mounting rod; 102. Bottom plate; 103. Anchor; 104. Clamp; 2. Sucker rod wax collection assembly; 201. Wax collection container; 202. Ultrasonic generator; 203. Heater; 204. Top plate; 205. Telescopic rod; 206. Sucker rod body; 3. Control assembly; 301. Control box; 302. Operation screen; 303. Working indicator light; 304. Knob switch; 305. Illuminated button. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] For examples, see Figures 1-4 , the present invention provides a technical solution:

[0035] The invention discloses a sucker rod wax collecting device with ultrasonic wax removal function, comprising a main body 1 , a sucker rod wax collecting assembly 2 is arranged on the side of the main body 1 , and a control assembly 3 is fixedly connected to the side of the main body 1 .

[0036] In this embodiment, Figure 1 and Figure 2As shown, the main body 1 includes a mounting rod 101, and the sucker rod wax collecting assembly 2 includes a wax collecting container 201. The top of the mounting rod 101 is fixedly connected to a top plate 204, and a telescopic rod 205 is installed on the top of the top plate 204. The output end of the telescopic rod 205 is fixedly connected to the sucker rod body 206. An ultrasonic generator 202 is installed on the side of the wax collecting container 201, and a heater 203 is installed at the bottom of the wax collecting container 201. The wax collecting container 201 can be used to collect wax on the surface of the sucker rod. The wax collecting container 201 is a hollow cylindrical structure with a spiral guide groove on its inner wall for The wax is guided to flow and collected centrally. The sucker rod channel is located at the center of the wax collecting container 201, which is used to accommodate the sucker rod so that the sucker rod can pass smoothly during the up and down movement. The high-frequency ultrasonic wave generated by the ultrasonic generator 202 oscillates the wax stains on the surface of the sucker rod to loosen and fall off. The synergistic effect of the high-frequency oscillation of the ultrasonic wave and the heater 203 can quickly and effectively remove the wax stains on the surface of the sucker rod, thereby improving the wax removal efficiency. Compared with the traditional chemical wax removal method, the present invention does not use chemical agents, avoids pollution to the environment, and reduces energy consumption.

[0037] Among them, the wax collecting container 201 is a hollow cylindrical structure, and its inner wall is provided with a spiral guide groove. A sucker rod channel is provided at the center of the wax collecting container 201, and is used to accommodate the sucker rod. A wax scraper is installed in the sucker rod channel, and several wax scrapers are provided. A heater 203 is installed at the bottom of the wax collecting container 201 to heat the wax in the wax collecting container 201, reduce the viscosity of the wax, and facilitate the flow and collection of the wax. Multiple wax scrapers are installed in the sucker rod channel to preliminarily scrape off the wax stains on the surface of the sucker rod. The shape of the wax scraper matches the outer surface of the sucker rod, and can scrape off the wax stains during the up and down movement of the sucker rod. By timely removing the wax stains on the surface of the sucker rod, the corrosion and wear of the wax stains on the sucker rod are reduced, thereby extending the service life of the sucker rod.

[0038] In this embodiment, Figure 1 、 Figure 3 and Figure 4As shown, the control component 3 includes a control box 301, an operation screen 302 is fixedly connected to the side of the control box 301, a knob switch 304 is provided on the side of the control box 301, a work indicator light 303 is fixedly connected to the side of the control box 301, a lighted button 305 is provided on the side of the control box 301, a clamp 104 is provided on the side of the mounting rod 101, the wax collecting container 201 is arranged inside the clamp 104, the bottom of the mounting rod 101 is fixedly connected to the base plate 102, the base plate 102 is stainless steel, and the bottom of the base plate 102 is fixedly connected to the ground feet 103, and there are three ground feet 103. The control component 3 is used to control the working status of the ultrasonic generator 202, the heater 203 and the wax scraping mechanism. The control component 3 can automatically adjust the frequency, heating temperature and scraping force of the ultrasonic wave according to factors such as the running speed of the sucker rod and the thickness of the wax scale. The control system can automatically adjust the working status of each component according to the actual working conditions, realize automatic wax removal, and reduce labor costs.

[0039] The present invention also discloses a method for using a sucker rod wax collecting device with an ultrasonic wax removal function. The method for implementing the sucker rod wax collecting device with an ultrasonic wax removal function includes the following steps:

[0040] S1. Fix the wax collecting container 201 to the side of the mounting rod 101 through the clamp 104, so that the sucker rod body 206 passes through the sucker rod channel in the center of the wax collecting container 201;

[0041] S2, start the heater 203 through the control component 3 to raise the temperature in the wax collection container 201 to 40-60°C to reduce the viscosity of the wax;

[0042] S3, synchronously start the ultrasonic generator 202, emit ultrasonic waves at a frequency of 20-40kHz, and perform high-frequency oscillation on the wax scale on the surface of the sucker rod;

[0043] S4, the telescopic rod 205 drives the sucker rod body 206 to move up and down, and the wax scraper in the sucker rod channel first scrapes off the wax stains, and the loose wax flows into the bottom of the wax collecting container 201 under the guidance of the spiral guide groove for collection.

[0044] The present invention also discloses a method for using a sucker rod wax collecting device with an ultrasonic wax removal function, which further includes:

[0045] S5, the control component 3 presets the ultrasonic frequency, heating temperature and sucker rod movement parameters through the operation screen 302;

[0046] S6, the working indicator light 303 displays the operating status of the equipment in real time. When the wax in the wax collection container 201 reaches the set capacity, the lighted button 305 triggers an alarm;

[0047] S7. The operator stops the equipment by turning the knob switch 304, dismantles the wax collecting container 201 to clean the wax, and then reinstalls the device for continued use.

[0048] The working process of the present invention is as follows: when the sucker rod wax collecting device with ultrasonic wax removal function designed in this scheme is in operation, when the sucker rod moves up and down, the wax scraping mechanism is first used to preliminarily scrape off the wax stains on the surface of the sucker rod to loosen and fall off the wax stains. Subsequently, the high-frequency ultrasonic wave generated by the ultrasonic generator 202 oscillates the surface of the sucker rod to further loosen and fall off the wax stains. At the same time, the heater 203 heats the wax in the wax collecting container 201 to reduce the viscosity of the wax, thereby facilitating the wax to flow in the guide groove and be collected centrally. The working status of each component is precisely controlled by the control system to achieve an efficient and automated wax removal process.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sucker rod wax collecting device with ultrasonic wax removal function, comprising a main body (1), characterized in that: A sucker rod wax collecting assembly (2) is provided on the side of the main body (1), and a control assembly (3) is fixedly connected to the side of the main body (1); The main body (1) includes a mounting rod (101); The sucker rod wax collecting assembly (2) comprises a wax collecting container (201), a top plate (204) is fixedly connected to the top of the mounting rod (101), a telescopic rod (205) is installed on the top of the top plate (204), an output end of the telescopic rod (205) is fixedly connected to the sucker rod body (206), an ultrasonic generator (202) is installed on the side of the wax collecting container (201), and a heater (203) is installed on the bottom of the wax collecting container (201).

2. The sucker rod wax collecting device with ultrasonic wax removal function according to claim 1, characterized in that: The wax collecting container (201) is a hollow cylindrical structure, and a spiral guide groove is provided on the inner wall of the container.

3. The sucker rod wax collecting device with ultrasonic wax removal function according to claim 1, characterized in that: A sucker rod channel is provided at the center of the wax collecting container (201) for accommodating the sucker rod. A wax scraper is installed in the sucker rod channel, and a plurality of wax scrapers are provided.

4. The sucker rod wax collecting device with ultrasonic wax removal function according to claim 1, characterized in that: The control assembly (3) comprises a control box (301), an operating screen (302) is fixedly connected to the side of the control box (301), and a knob switch (304) is provided on the side of the control box (301).

5. The sucker rod wax collecting device with ultrasonic wax removal function according to claim 4, characterized in that: A working indicator light (303) is fixedly connected to the side of the control box (301), and a lighted button (305) is provided on the side of the control box (301).

6. The sucker rod wax collecting device with ultrasonic wax removal function according to claim 1, characterized in that: A clamp (104) is provided on the side of the mounting rod (101), and the wax collecting container (201) is provided inside the clamp (104).

7. The sucker rod wax collecting device with ultrasonic wax removal function according to claim 6, characterized in that: The bottom of the mounting rod (101) is fixedly connected to a bottom plate (102), and the bottom plate (102) is made of stainless steel.

8. The sucker rod wax collecting device with ultrasonic wax removal function according to claim 7, characterized in that: The bottom of the base plate (102) is fixedly connected with a foot (103), and three foots (103) are provided.

9. A method for using a sucker rod wax collecting device with ultrasonic wax removal function, which realizes the sucker rod wax collecting device with ultrasonic wax removal function according to any one of claims 1 to 8, characterized in that The following steps are involved: S1. Fix the wax collecting container (201) to the side of the mounting rod (101) through the clamp (104), so that the sucker rod body (206) passes through the sucker rod channel in the center of the wax collecting container (201); S2, starting the heater (203) through the control component (3) to raise the temperature in the wax collecting container (201) to 40-60°C to reduce the viscosity of the wax; S3, synchronously starting the ultrasonic generator (202), emitting ultrasonic waves at a frequency of 20-40 kHz, and performing high-frequency oscillation on the wax deposits on the surface of the sucker rod; S4, the telescopic rod (205) drives the sucker rod body (206) to move up and down, and the wax scraper in the sucker rod channel first scrapes off the wax stains, and the loose wax flows into the bottom of the wax collecting container (201) under the guidance of the spiral guide groove for collection.

10. The method for using the sucker rod wax collecting device with ultrasonic wax removal function according to claim 9, characterized in that: Also includes: S5, the control component (3) presets the ultrasonic frequency, heating temperature and pumping rod movement stroke parameters through the operation screen (302); S6, the working indicator light (303) displays the operating status of the equipment in real time. When the wax in the wax collecting container (201) reaches the set capacity, the lighted button (305) triggers an alarm; S7. The operator stops the equipment by turning the knob switch (304), dismantles the wax collecting container (201), cleans the wax, and then reinstalls the container to continue using the equipment.