Self-adjusting sleeve cleaning tool

Abstract

The invention discloses a self-adjusting type casing cleaning tool, and belongs to the technical field of petroleum drilling equipment, the self-adjusting type casing cleaning tool comprises a mandrel part, the mandrel part is provided with a main body part extending along an axis O, and a first interval is formed on the radial outer side of the main body part; the sound wave receiver is installed in the first interval and is configured to collect sound wave signals generated when the cleaning tool works; and a scraper blade part. The mandrel part is arranged to serve as a carrier of the scraper blade part, so that installation and conveying of the scraper blade part, the sound wave receiver and other parts are achieved, sound wave signals generated during operation of the cleaning tool are collected through the sound wave receiver, and the frequency information of the collected sound wave signals is analyzed, so that the accuracy of the sound wave signals is improved. Therefore, the radial movement of the scraper blade part is controlled, the radial positioning of the scraper blade part is realized, the automatic control operation of the cleaning tool is realized, and the automation degree is high.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum drilling equipment, and in particular relates to a self-adjusting casing cleaning tool. Background Art

[0002] During the completion operation, such as packer setting and wireline operation, the inner wall of the casing needs to be scraped and cleaned first to remove impurities such as scale, paraffin, mud, etc. on the inner wall to ensure construction safety.

[0003] In traditional operations, it is generally chosen to lower the tubing multiple times to complete the scraping and cleaning of pipes of different diameters, or to use scrapers of multiple sizes in one drilling trip. These two methods have certain disadvantages. The former is time-consuming and inefficient because it requires multiple trips to the drill. The latter may cause a large-sized scraper to scrape a small-sized casing, causing the casing to become thinner and cause casing damage. For example, patent document CN112593897A discloses a controllable variable diameter scraper, which controls the scraping diameter through a cylinder. This method requires changing the pressure to control the scraping diameter. However, changes in pressure may affect the normal use of other tools. In addition, the tool has a low degree of intelligence, and the judgment of downhole conditions is greatly affected by human factors. Summary of the invention

[0004] The object of the present invention is to provide a self-adjusting sleeve cleaning tool to solve the problems of the cleaning tool mentioned in the background art during use.

[0005] To achieve the above object, the present invention provides the following technical solution: a self-adjusting casing cleaning tool, comprising:

[0006] The spindle component has a main body extending along the axis O, and a first section is formed on the radially outer side of the main body;

[0007] an acoustic wave receiver installed in the first interval and configured to collect acoustic wave signals generated when the cleaning tool is in operation;

[0008] The scraper blade component is disposed in the first interval and is configured to be linearly movable along a radial direction and to achieve radial positioning according to the frequency value of the acoustic wave signal.

[0009] Preferably, the cleaning tool further comprises an adjusting component, the sound wave receiver is constituted as a part of the adjusting component, and the radial movement of the scraper blade component is achieved through the adjusting component.

[0010] Preferably, the adjustment component further comprises:

[0011] a resistance component, disposed in the first interval, and having a resistance value configured to vary with the frequency of the sound wave signal;

[0012] An electromagnet component is arranged radially inward of the scraper blade component;

[0013] A magnetic block component is directly or indirectly connected to the scraper blade component, and based on the magnetic force between the magnetic block component and the electromagnet component, the scraper blade component is subjected to a first force in a radial direction;

[0014] The power supply component is connected with the resistance component and the electromagnet component through a wire to form a loop.

[0015] Preferably, the adjustment component further comprises:

[0016] The reset mechanism is used to apply a second force in a radial direction to the scraper blade component, the first force and the second force are in opposite directions, and the scraper blade component realizes radial movement and remains stable under the coordinated action of the first force and the second force.

[0017] Preferably, the reset mechanism is at least one spring arranged between the scraper blade component and the electromagnet component.

[0018] Preferably, the resistance value of the resistor component is configured to become a maximum value when the frequency of the sound wave signal exceeds a preset threshold, and to become a minimum value when the frequency of the sound wave signal is not greater than the preset threshold.

[0019] Preferably, the cleaning tool further comprises a sliding sleeve body, and the sliding sleeve body comprises:

[0020] The first part extends along the axis O and is connected to the radial inner side of the scraper blade component;

[0021] Two second parts, one end of each of the two second parts is connected to two ends of the first part in the axial direction, and the other end of the second part extends inwardly in the radial direction and is connected to the magnetic block component;

[0022] The reset zone is defined by the first part and the second part of the sliding sleeve and the main body of the spindle component.

[0023] Preferably, the cleaning tool further comprises a straightening assembly for limiting the axial movement of the scraper blade during the radial movement of the scraper blade component, and the sliding sleeve constitutes a part of the straightening assembly.

[0024] Preferably, the straightening assembly further comprises:

[0025] The straightening shaft component is sleeved on the main body and located in the reset zone. A through hole extending radially and passing through the reset mechanism is formed thereon, and the second part of the sliding sleeve is configured to slide along the axial end surface of the straightening shaft component.

[0026] Preferably, the straightening assembly further comprises:

[0027] The cylinder part is arranged on the radial outer side of the main body part and is provided with an opening for the sliding sleeve to pass through.

[0028] Preferably, the straightening assembly further comprises:

[0029] The centralizer component is sleeved on the outer surface section of the cylinder component.

[0030] Preferably, the cleaning tool further comprises:

[0031] A flange portion, formed at one axial end of the main body portion and extending outward in a radial direction;

[0032] The joint component is assembled at the other axial end of the main body and has a portion extending radially outward. The flange portion and the joint component are used to close the two axial ends of the first section respectively.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present application sets a mandrel component as a carrier of the scraper blade component to realize the installation and transportation of the scraper blade component and components such as the sound wave receiver, collects the sound wave signal generated when the cleaning tool is in operation through the sound wave receiver, and analyzes the frequency information of the collected sound wave signal to control the radial movement of the scraper blade component to realize the radial positioning of the scraper blade component, thereby realizing the automated control operation of the cleaning tool with a high degree of automation.

[0035] 2. The present application can automatically realize the automatic movement and resetting of the scraper blade component in the radial direction by providing an adjustment component composed of a resistance component, a power supply component, an electromagnet component, a magnetic block component and a resetting mechanism.

[0036] 3. The present application provides a straightening assembly, which can keep the scraper blade component stable during radial movement, thereby improving the stability of the cleaning tool during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Provide an overview of this application Figure 1 ;

[0038] Figure 2 Provide an overview of this application Figure 2 ;

[0039] Figure 3 Provide an overview of this application Figure 3 ;

[0040] Figure 4 This is a schematic diagram of an embodiment of the present application;

[0041] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0042] Figure 6 A detailed view of the location of the scraper blade components of another embodiment of the present application;

[0043] Figure 7 This is an illustration of the overall structure of this application Figure 1 ;

[0044] Figure 8 This is an illustration of the overall structure of this application Figure 2 .

[0045] In the figure:

[0046] 100, spindle member; 101, main body; 101a, first end; 101b, second end; 101c, first section; 101d, second section; 102, flange; 103, first section;

[0047] 200, connector part; 200a, wide end; 200b, tip;

[0048] 300, scraper blade component; 300a, scraper surface;

[0049] 400, adjustment component; 401, sound wave receiver; 402, resistor component; 403, electromagnet component; 404, magnetic block component; 405, power supply component; 406, spring;

[0050] 500, centralizing assembly; 501, sliding sleeve; 501a, first part; 501b, second part; 502, reset section; 503, cylinder component; 504, second section; 505, centralizing device component; 506, centralizing shaft component. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] A self-adjusting casing cleaning tool (hereinafter referred to as the cleaning tool) can automatically adjust the radial position of the cleaning component (subsequent scraper blade component) during the cleaning process of the inner wall of the casing, thereby realizing the automatic operation of the cleaning tool, referring to Figure 1, is a schematic diagram of an overview of the cleaning tool of the present application, the cleaning tool comprising:

[0053] The spindle component has a main body extending along the axis O, and a first section is formed on the radially outer side of the main body;

[0054] an acoustic wave receiver installed in the first interval and configured to collect acoustic wave signals generated when the cleaning tool is in operation;

[0055] The scraper blade component is disposed in the first interval and is configured to be linearly movable along a radial direction and to achieve radial positioning according to the frequency value of the acoustic wave signal.

[0056] The structure of the cleaning tool is now described in conjunction with the detailed drawings. Figure 2 The cleaning tool comprises a spindle component 100, which has a main body 101, which is configured as a cylindrical component extending along the axis O, and the main body 101 has an axial first end 101a and a second end 101b, and the outer section of the main body 101 in the radial direction is defined as a first section 103. The cleaning tool also comprises a joint component 200, which is assembled at the second end 101b of the main body 101. In some embodiments, the joint component 200 has an axial tip 200b and a wide end 200a, wherein the wide end 200a is configured as a connecting end with the main body 101, and the wide end 200a has a portion extending radially outward relative to the main body 101, that is, the outer diameter of the wide end 200a of the joint component 200 is greater than the outer diameter of the main body 101, and one axial end of the first section 103 is closed by the wide end 200a of the joint component 200, and returns to Figure 2 , the structure of the joint component 200 is further described. The tip 200b of the joint component 200 is configured to extend in a direction away from the main body 101 and shrink inward in a radial direction, that is, the outer diameter of the joint component 200 gradually decreases in a direction away from the main body 101. Exemplarily, the joint component 200 is configured as a truncated cone component, and a through hole extending along the axis O is formed in the joint component 200;

[0057] Back to Figure 2 Continuing to explain the structure of the cleaning tool, the spindle component 100 further includes a flange portion 102, which is formed at the first end 101a of the main body 101 and is a cylindrical component extending outward in the radial direction, that is, the flange portion 102 has a portion protruding radially outward relative to the main body 101, and closes the other axial end of the first section 103;

[0058] Back to Figure 1The cleaning tool further comprises a scraper blade component 300, the scraper blade component 300 has a scraper surface 300a for contacting the metal layer of the inner wall of the sleeve and cleaning the inner wall of the sleeve, and the scraper blade component 300 is configured to be able to move linearly along the radial direction of the main body 101 and maintain after the movement is completed, so as to adjust the radial position of the scraper surface 300a, that is, to change the diameter of the scraper blade component 300 and the scraper surface 300a. Further, the cleaning tool further comprises an acoustic wave receiver 401, which The sound wave receiver 401 is arranged in the first interval 103. For example, the sound wave receiver 401 is installed on the outer circumferential surface of the main body 101. The sound wave receiver 401 is configured to collect the sound wave signal (hereinafter also referred to as the working sound wave) when the cleaning tool is in operation, that is, to collect the sound wave signal generated when the scraper surface 300a of the scraper blade component 300 and the inner wall of the sleeve are scraped. In some embodiments, the sound wave receiver 401 is configured during the operation of the cleaning tool to periodically collect the sound wave signal.

[0059] In some embodiments, the scraper blade component 300 moves in the radial direction according to the frequency of the collected sound wave signal to adjust the radial position of the scraper blade component 300, that is, the radial position of the scraper blade component 300 is adjusted based on the frequency of the sound wave signal. Specifically, when the frequency of the collected sound wave signal is low, the scraper surface 300a of the scraper blade component 300 does not scrape the metal layer on the inner wall of the sleeve or the scraper surface 300a contacts the impurity layer on the inner wall of the sleeve, the scraper blade component 300 is controlled to move radially. The scraper blade component 300 is moved outward, that is, the radial position of the scraper blade component 300 is adjusted outward so that the scraper blade component 300 contacts the impurity layer on the inner wall of the sleeve to complete the cleaning operation. When the frequency of the collected sound wave signal is high, the scraper surface 300a of the scraper blade component 300 directly contacts the metal layer on the inner wall of the sleeve, that is, the impurity removal operation on the inner wall of the sleeve is completed, then the scraper blade component 300 is correspondingly controlled to move radially inward so that the scraper surface 300a of the scraper blade component 300 is separated from the inner wall of the sleeve. In the preferred embodiment, refer to Figure 3 During the operation of the cleaning tool, the frequency of the sound wave signal is set to a preset threshold. When the frequency of the collected sound wave signal is not greater than the preset threshold, the scraper blade component 300 moves radially to the first position (radially outermost) and maintains it to perform the cleaning operation. When the frequency of the collected sound wave signal is greater than the preset threshold, the scraper blade component 300 moves radially to the second position (radially innermost) and maintains it to end the cleaning operation.

[0060] Reference Figure 4 and 5The movement of the scraper blade component 300 is realized based on the adjustment component 400 arranged in the first interval 103, the sound wave receiver 401 is constituted as a part of the adjustment component 400, and the adjustment component 400 also includes a resistor component 402, a power supply component 405 and an electromagnet component 403, wherein the resistor component 402, the power supply component 405 and the electromagnet component 403 are connected by a wire to form a circuit (hereinafter referred to as a working circuit), wherein the power supply component 405 is constituted as an energy storage battery (such as a lithium battery), which can realize energy replenishment by charging and the like. In some embodiments, the resistor component 402, the power supply component 405 and the electromagnet component 403 are all assembled on the circumferential outer surface of the main body 101, and the axial position of the electromagnet component 403 and the scraper blade component 300 are The axial positions correspond to each other. For example, the scraper blade component 300 is arranged on the radial outer side of the electromagnet component 403. In other embodiments, a partial section of the circumferential outer surface of the main body 101 is provided with an axially extending groove. Correspondingly, the section of the main body 101 provided with the groove is recorded as the first section 101c, and the remaining sections of the main body 101 are recorded as the second section 101d. Preferably, the first section 101c is located in the middle section of the main body 101, thereby dividing the second section 101d into two parts. The resistor component 402 and the power supply component 405 are respectively installed on the two parts of the second section 101d. Correspondingly, the electromagnet component 403 is installed in the groove in the first section 101c, and the specifications of the electromagnet component 403 are adapted to the specifications of the groove.

[0061] Back to Figure 4 and 5 , continue to explain the adjustment component 400, the resistance value of the above-mentioned resistor component 402 is configured to change with the frequency of the sound wave signal collected by the sound wave receiver 401, and the current in the working circuit is adjusted by changing the resistance value in the working circuit, that is, the above-mentioned adjustment component 400 controls the working circuit current size (that is, the on-off of the working circuit) of the working circuit corresponding to the change in the resistance value of the resistor component 402, and then controls the working state of the electromagnet component 403, that is, controls the magnetic strength of the electromagnet component 403. Specifically, in some embodiments, when the resistance value of the above-mentioned resistor component 402 is configured to become the maximum value when the frequency of the above-mentioned sound wave signal exceeds the preset threshold, and becomes the minimum value when the frequency of the above-mentioned sound wave signal is not greater than the preset threshold, correspondingly, the magnetism of the above-mentioned electromagnet component 403 is the weakest when the frequency of the sound wave signal exceeds the preset threshold, and the magnetism of the electromagnet component 403 is the strongest when the frequency of the sound wave signal is not greater than the preset threshold;

[0062] Back to Figure 5The above-mentioned adjustment component 400 also includes a magnetic block component 404, wherein the magnetic block component 404 is arranged between the electromagnet component 403 and the scraper blade component 300, and is directly or indirectly connected to the scraper blade component 300. In some embodiments, the above-mentioned magnetic block component 404 and the scraper blade component 300 are connected through a subsequent sliding sleeve 501. At this time, the scraper blade component 300 and the magnetic block component 404 constitute a motion community, that is, the movements of the two are kept synchronous. Based on the magnetic force between the magnetic block component 404 and the electromagnet component 403, the scraper blade component 300 The scraper blade component 300 is subjected to a first force in the radial direction, that is, through the connection between the scraper blade component 300 and the magnetic block component 404, the magnetic force between the electromagnet component 403 and the magnetic block component 404 acts on the scraper blade component 300, and the magnitude of the first force changes with the change of the magnetic strength of the electromagnet component 403. In some embodiments, the first force reaches a maximum when the resistance value of the resistor component 402 becomes a minimum value, and becomes a minimum when the resistance value of the resistor component 402 becomes a maximum value. The radial movement of the scraper blade component 300 is achieved by the above-mentioned first force;

[0063] In some embodiments, the direction of the first force is configured to be variable, thereby realizing bidirectional movement of the scraper blade component 300 in the radial direction. For example, the radial movement direction of the scraper blade component 300 can be controlled by controlling the direction of the current in the working loop so that an attractive force or a repulsive force is generated between the electromagnet component 403 and the magnetic block component 404. In some embodiments, the change of the current flow direction in the working loop is synchronized with the change of the resistance value of the resistor component 402 between the maximum value and the minimum value. For example, when the resistance value of the resistor component 402 reaches the maximum value and the current direction is positive, when the resistance value of the resistor component 402 becomes the minimum value, the current direction becomes negative;

[0064] In some embodiments, reference Figure 6, the direction of the first force is configured to be constant, that is, the current flow direction in the working circuit is constant. Correspondingly, the adjustment component 400 also includes a reset mechanism, which is used to apply a radial second force to the scraper blade component 300. The second force is opposite to the first force in direction and is configured to change with the change of the first force. Through the synergistic effect of the first force and the second force, the radial position of the scraper blade component 300 can be adjusted and maintained stable after the adjustment is completed. For example, when the direction of the first force is radially outward, that is, the force between the electromagnet component 403 and the magnetic block component 404 is a repulsive force, when the resistance value of the resistor component 402 becomes the minimum value (that is, the frequency of the acoustic wave signal is not greater than the preset threshold), the first force reaches a maximum and is greater than the second force. Correspondingly, the scraper blade component The scraper blade component 300 moves radially outward, and the second force increases as the radially outward movement distance of the scraper blade component 300 increases. When the scraper blade component 300 moves to the first position, the first force and the second force reach a balance again, so that the scraper blade component 300 remains stable at this position and performs the cleaning operation of the inner wall of the sleeve. When the resistance value of the resistor component 402 becomes the minimum value (that is, the frequency of the acoustic wave signal is greater than the preset threshold value), the first force is smaller than the second force. Correspondingly, the scraper blade component 300 moves radially inward, and the second force decreases as the radially inward movement distance of the scraper blade component 300 increases. When the scraper blade component 300 moves to the first position, the first force and the second force reach a balance again, so that the scraper blade component 300 remains stable at this position and separates from the inner wall of the sleeve to end the cleaning operation.

[0065] In some embodiments, the reset mechanism is configured as at least one spring 406 disposed between the scraper blade component 300 and the electromagnet component 403. The spring 406 expands and contracts as the scraper blade component 300 moves in the radial direction to adjust the magnitude of the second force.

[0066] Reference Figure 7 The cleaning tool also includes a straightening assembly 500 that cooperates with the adjustment assembly 400. The sliding sleeve 501 is a part of the straightening assembly 500. For details, refer to Figure 7The sliding sleeve 501 has a first portion 501a arranged parallel to the axis O and a second portion 502b arranged at both axial ends of the first portion 501a and extending in the radial direction, and the first portion 501a and the second portion 502b together enclose a reset interval 502, wherein the outer wall of the first portion 501a contacts the inner wall of the scraper blade component 300, one radial end of the second portion 502b is connected to the axial end of the first portion 501a, and the other radial end of the second portion 502b is connected to the magnetic block component 404. At this time, the spring 406 is arranged in the reset interval 502, and the two ends of the spring 406 are respectively connected to the first portion 501a of the sliding sleeve 501 and the electromagnet component 403;

[0067] In some embodiments, the straightening assembly 500 further includes a straightening shaft component 506, which is configured as a cylindrical component extending along the axis O. The straightening shaft component 506 is compatible with the specifications of the reset zone 502, and a circular hole extending in the radial direction and allowing the spring 406 to pass through is opened on the straightening shaft component 506. The specifications of the circular hole are compatible with the specifications of the spring 406 to limit the swing of the spring 406 in the axial direction of the main body 101. At the same time, the second part 502b of the sliding sleeve 501 is configured to slide along the axial end face of the straightening shaft component 506, and the sliding sleeve 501 is configured so that when the scraper blade component 300 moves to the second position, the inner surface of the first part 501a thereof contacts the circumferential outer surface of the straightening shaft component 506;

[0068] Back to Figure 7 The above-mentioned straightening assembly 500 also includes a cylindrical member 503 disposed on the radial outer side of the main body 101 and corresponding to the first section 103 The cylindrical member 503 is used to close the first section 103 in the radial outer direction of the first section 103. Figure 8At this time, the cylinder component 503, the main body 101, the flange 102 and the joint component 200 jointly define a second section 504, and the sound wave receiver 401, the resistor component 402, the power supply component 405, the electromagnet component 403 and the magnetic block component 404 constituting the above-mentioned adjustment component 400 are all arranged in the second section 504, and the cylinder component 503 is provided with an opening for the sliding sleeve 501 to pass through at the position of the above-mentioned sliding sleeve 501, and the second section of the above-mentioned sliding sleeve 501 The portion 502b is configured to be able to slide along the inner wall of the opening in the radial direction, and the axial movement of the sliding sleeve 501 is limited by the cylinder component 503 to maintain the stability of the sliding sleeve 501 and the scraper blade component 300 in the radial direction. Further, the scraper blade component 300 is located on the radial outer side of the cylinder component 503 and is formed with a radially inward protrusion. When the scraper blade component 300 moves to the second position, the protrusion contacts the circumferential outer surface of the cylinder component 503.

[0069] Back to Figure 7 The cleaning tool further includes a centralizer component 505 which is sleeved on a partial section of the circumferential outer surface of the barrel component 503 .

[0070] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-adjusting casing cleaning tool, characterized in that: include: The spindle component has a main body extending along the axis O, and a first section is formed on the radially outer side of the main body; an acoustic wave receiver installed in the first interval and configured to collect acoustic wave signals generated when the cleaning tool is in operation; The scraper blade component is disposed in the first interval and is configured to be linearly movable along a radial direction and to achieve radial positioning according to the frequency value of the acoustic wave signal.

2. A self-adjustable casing cleaning tool according to claim 1, characterized in that: The cleaning tool further comprises an adjusting component, wherein the sound wave receiver is formed as a part of the adjusting component, and the radial movement of the scraper blade component is achieved through the adjusting component.

3. A self-adjustable casing cleaning tool according to claim 2, characterized in that: The adjustment component also includes: a resistance component, disposed in the first interval, and having a resistance value configured to vary with the frequency of the sound wave signal; An electromagnet component is arranged radially inward of the scraper blade component; A magnetic block component is directly or indirectly connected to the scraper blade component, and based on the magnetic force between the magnetic block component and the electromagnet component, the scraper blade component is subjected to a first force in a radial direction; The power supply component is connected with the resistance component and the electromagnet component through a wire to form a loop.

4. A self-adjustable casing cleaning tool according to claim 3, characterized in that: The adjustment component also includes: The reset mechanism is used to apply a second force in a radial direction to the scraper blade component, the first force and the second force are in opposite directions, and the scraper blade component realizes radial movement and remains stable under the coordinated action of the first force and the second force.

5. A self-adjustable casing cleaning tool according to claim 4, characterized in that: The reset mechanism is at least one spring disposed between the scraper blade component and the electromagnet component.

6. The self-adjustable casing cleaning tool according to claim 3, characterized in that: The resistance value of the resistor component is configured to become a maximum value when the frequency of the sound wave signal exceeds a preset threshold value, and to become a minimum value when the frequency of the sound wave signal is not greater than the preset threshold value.

7. The self-adjustable casing cleaning tool according to claim 4, characterized in that: The cleaning tool further comprises a sliding sleeve body, wherein the sliding sleeve body comprises: The first part extends along the axis O and is connected to the radial inner side of the scraper blade component; Two second parts, one end of each of the two second parts is connected to two ends of the first part in the axial direction, and the other end of the second part extends inwardly in the radial direction and is connected to the magnetic block component; The reset zone is defined by the first part and the second part of the sliding sleeve and the main body of the spindle component.

8. The self-adjustable casing cleaning tool according to claim 7, characterized in that: The cleaning tool further comprises a straightening assembly for limiting the axial movement of the scraper blade during the radial movement of the scraper blade component, and the sliding sleeve is constituted as a part of the straightening assembly.

9. A self-adjustable casing cleaning tool according to claim 8, characterized in that: The righting assembly further comprises: The straightening shaft component is sleeved on the main body and located in the reset zone. A through hole extending radially and passing through the reset mechanism is formed thereon, and the second part of the sliding sleeve is configured to slide along the axial end surface of the straightening shaft component.

10. The self-adjustable casing cleaning tool according to claim 9, characterized in that: The righting assembly further comprises: The cylinder part is arranged on the radial outer side of the main body part and is provided with an opening for the sliding sleeve to pass through.

11. The self-adjustable casing cleaning tool according to claim 10, characterized in that: The righting assembly further comprises: The centralizer component is sleeved on the outer surface section of the cylinder component.

12. The self-adjustable casing cleaning tool according to claim 1, characterized in that: The cleaning tool also includes: A flange portion, formed at one axial end of the main body portion and extending outward in a radial direction; The joint component is assembled at the other axial end of the main body and has a portion extending radially outward. The flange portion and the joint component are used to close the two axial ends of the first section respectively.

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