CN116464397A - Method and apparatus for converting conventional tool into cabled tool - Google Patents

Abstract

The present invention proposes a method and device for converting a conventional tool into a cable-passing tool, which relates to the field of petroleum production machinery and equipment. The conventional tool has an axially penetrating working cavity, and provides two through-connectors. The threading hole of the joint, the working cavity of the conventional tool and the threading hole of another threading joint, and then the two threading joints are respectively installed on the two ends of the conventional tool, and the connection end is detachably connected with the end of the conventional tool. The method and device for converting a conventional tool into a cable-passing tool provided by the present invention enable the cable-passing function without changing the structure of the original downhole tool, thereby saving costs.

Description

Method and apparatus for converting a conventional tool into an over-the-wire tool

technical field

The invention relates to the field of petroleum production mechanical equipment, in particular to a method and a device for converting a conventional tool into a cable tool.

Background technique

In the process of oil production, various downhole tools need to be run downhole. Digital equipment is rarely used in traditional oil production, and traditional downhole tools do not have the function of traveling through cables.

At present, with the development of digital construction of oil production, it is inevitable to use cables to transmit signals to control downhole tools or monitor and transmit downhole data, which requires downhole tools to have the function of passing through cables. The existing common practice is to carry out structural modification to conventional downhole tools, so that the downhole tools can be added with cable functions. However, this method has a problem in that the tool needs to be redesigned, which increases the design cost. Moreover, it is necessary to replace the existing downhole tool with a new downhole tool with the function of passing through the cable, which increases the production cost and causes a lot of waste.

In view of this, the inventor has designed a method and device for converting a conventional tool into a cable tool through repeated experiments based on years of experience in production design in this field and related fields, in order to solve the problems in the prior art.

Contents of the invention

The object of the present invention is to propose a method and device for converting a conventional tool into a cable-passing tool, so that it has the function of passing through the cable without changing the structure of the original downhole tool and saves costs.

In order to achieve the above object, the present invention proposes a method for converting a conventional tool into a cable-passing tool. The conventional tool has an axially penetrating working cavity, wherein two threading joints are provided. The threading joint is cylindrical and has an axially penetrating accommodating cavity. One end of the threading joint is a connecting end, and the other end of the threading joint is a threading end. A threading hole is opened in the side wall of the threading joint. Make the cable pass through the threading hole of one of the passing joints, the working cavity of the conventional tool and the threading hole of the other passing joint in turn, and then install the two passing joints on the two ends of the conventional tool respectively, and the connecting end is detachably connected with the end of the conventional tool.

The present invention also proposes a device for converting a conventional tool into a cable-passing tool, wherein the device for converting a conventional tool into a cable-passing tool includes two threading joints, the threading joints are cylindrical and have an axially penetrating accommodating cavity, one end of the threading joint is a connecting end, the other end of the threading joint is a threading end, and a threading hole is opened in the side wall of the threading joint, one end of the threading hole opens on the end surface of the threading end, and the other end of the threading hole opens on the inner wall of the threading joint.

The device for converting a conventional tool into a cable tool as described above, wherein the passing joint forms a guide section between the connecting end and the threading end, the inner wall surface of the guiding section is a tapered surface, and the tapered surface gradually decreases in diameter from the threading end to the connecting end, the inner diameter of the threading end is smaller than the inner diameter of the guiding section to form a limiting step, and the other end of the threading hole opens to the limiting step.

The device for converting a conventional tool into a cable tool as described above, wherein, the opening of the threading hole at the end face of the threading end is a limit opening, the limit opening is expanded in diameter relative to the threading hole and a sealing limit step is formed, a sealing assembly is arranged in the limit opening, and the sealing assembly includes a sealing head and a sealing ring. The sealing head is tubular and has a through hole for the cable to pass through. between the sealing head and the sealing limiting step and pressed against the sealing limiting step by the sealing head.

The device for converting a conventional tool into an over-cable tool as described above, wherein the sealing ring is a copper sealing ring.

The device for converting a conventional tool into a cable tool as described above, wherein one end of the conventional tool has a female joint, the other end of the conventional tool has a male joint, one connection end of the crossing joint is detachably connected to the female joint through an upper connection assembly, and the other connection end of the crossing joint is detachably connected to the male joint through a lower connection assembly.

The device for converting a conventional tool into a cable tool as described above, wherein the upper connection assembly includes an upper connecting body and an upper connecting sleeve, both of which are cylindrical in shape, one end of the upper connecting body is provided with an external thread matched with the female joint, the other end of the upper connecting body is passed through one end of the upper connecting sleeve, the other end of the upper connecting sleeve is sleeved outside the connecting end of the crossing joint and is threadedly connected with the connecting end. The upper axial limit structure for sleeve disengagement.

As described above, the device for converting a conventional tool into a cable tool, wherein the upper axial limiting structure includes a first limiting boss and a second limiting boss that engage in alignment, the first limiting boss is arranged on the outer wall of the upper connecting body and protrudes outward along the radial direction of the upper connecting body, and the second limiting boss is arranged at the port at one end of the upper connecting sleeve and protrudes inward along the radial direction of the upper connecting sleeve.

The device for converting a conventional tool into a cable tool as described above, wherein the connecting end has a first connecting part and a second connecting part, the first connecting part is connected to the guide section, and the outer diameter of the first connecting part is smaller than the outer diameter of the passing joint to form a third limiting step, the outer diameter of the second connecting part is smaller than the outer diameter of the first connecting part to form a fourth limiting step, the upper connecting sleeve is set outside the first connecting part and threadedly connected with the first connecting part, and an annular space is formed between the second connecting part and the inner wall of the upper connecting sleeve. The other end of the upper connecting body is inserted into the annular space.

The device for converting a conventional tool into a cable tool as described above, wherein an anti-rotation nail is provided between the upper connecting sleeve and the passing joint, and an anti-rotation plunger is provided between the second connecting portion and the upper connecting sleeve.

As described above, the device for converting a conventional tool into a cable tool, wherein the lower connecting assembly includes a lower connecting body and a lower connecting sleeve, both of which are in a cylindrical shape, one end of the lower connecting body is provided with an internal thread matched with the male joint, the other end of the lower connecting body is inserted into one end of the lower connecting sleeve, the other end of the lower connecting sleeve is sleeved outside the connecting end of the other passing joint and is threadedly connected with the connecting end, and there is a device between the lower connecting body and the lower connecting sleeve to prevent the The lower axial limit structure for the disengagement of the lower connecting sleeve.

The method and device for converting a conventional tool into a cable tool according to the present invention have the following characteristics and advantages:

The method and device for converting a conventional tool into a cable-passing tool proposed by the present invention install a crossing joint at both ends of the conventional tool, and the cable passes through the threading hole of the crossing joint and the working chamber of the conventional tool to pass through the conventional tool, thereby supplying power and transmitting signals downhole. Moreover, the threading hole on the crossing joint can not only realize the crossing of the cable, but also have the function of limiting the position of the cable, avoiding the shaking of the cable and ensuring the normal operation of the cable.

In the method and device for converting a conventional tool into a cable-passing tool proposed by the present invention, two pass-through joints can be installed at both ends of any conventional tool without changing the performance of the original conventional tool.

Description of drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to help the understanding of the present invention, and do not specifically limit the shapes and proportional dimensions of the components in the present invention. Under the teaching of the present invention, those skilled in the art can select various possible shapes and proportional dimensions according to specific conditions to implement the present invention.

Fig. 1 is a structural schematic diagram of a crossing joint in the present invention;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a schematic structural view of the upper connection assembly in the present invention;

Fig. 4 is a schematic diagram of the assembly of the crossing joint and the upper connection assembly in the present invention;

Fig. 5 is a structural schematic diagram of the middle and lower connecting components of the present invention;

Fig. 6 is a schematic diagram of the assembly of the crossing joint and the lower connection assembly in the present invention;

Fig. 7 is a structural schematic diagram of a conventional tool in the present invention.

Explanation of reference signs:

10. Through the joint;

11. Connecting end; 111. First connecting part;

112. The second connecting part; 113. The third limit step;

114. The fourth limit step; 12. Threading end;

13. Threading hole; 131. Limiting port;

132. Limiting steps; 14. Accommodating cavity;

15. Guide section; 16. Limiting steps;

17. Seal assembly; 171. Seal head;

172, sealing ring; 173, through hole;

30. Upper connecting component; 31. Upper connecting body;

32. Upper connecting sleeve; 33. Upper axial limit structure;

331, the first limiting boss; 332, the second limiting boss;

34. Anti-rotation nail; 35. Anti-rotation plunger;

40. Lower connecting component; 41. Lower connecting body;

42. Lower connection sleeve; 43. Lower axial limit structure;

431, the third limiting boss; 432, the fourth limiting boss;

44. Anti-rotation nail; 45. Anti-rotation plunger;

50. The tubing is shorted;

200. Conventional tools; 210. Working cavity;

220, female connector; 230, male connector.

Detailed ways

The details of the present invention can be understood more clearly with reference to the accompanying drawings and the description of specific embodiments of the present invention. However, the specific embodiments of the present invention described here are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modification based on the present invention, and these should be regarded as belonging to the scope of the present invention.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may be present.

Please refer to Fig. 1 to Fig. 7, the present invention proposes a method for converting a conventional tool into a cable tool. The conventional tool 200 has an axially penetrating working chamber 210. The method provides two threading joints 10. Each threading joint 10 is cylindrical and has an axially penetrating accommodation cavity 14. One end of the threading joint 10 is a connecting end 11, and the other end of the threading joint 10 is a threading end 12. A threading hole 13 is opened in the side wall of the threading joint 10, and one end of the threading hole 13 is open. On the end face of the threading end 12, the other end of the threading hole 13 is opened on the inner wall surface of the threading joint 10; the cables are sequentially passed through the threading hole 13 of the threading joint 10, the working cavity 210 of the conventional tool 200 and the threading hole 13 of the other threading joint 10, and then the two threading joints 10 are respectively connected in series at the two ends of the conventional tool 200, and the connection end 11 is detachably connected to the end of the conventional tool 200.

The present invention also proposes a device for converting a conventional tool into a cable-passing tool. The device for converting a conventional tool into a cable-passing tool includes two threading joints 10. The threading joint 10 is cylindrical and has an accommodating cavity 14 axially penetrated. The opening is on the inner wall of the crossing joint 10 , and the connecting end 11 of the crossing joint 10 is detachably connected with the conventional tool 200 .

The method and device for converting a conventional tool into a cable-passing tool proposed by the present invention install a crossing joint 10 at both ends of the conventional tool, and the cable passes through the threading hole 13 of the crossing joint 10 and the working cavity of the conventional tool 200 to realize the crossing of the conventional tool, thereby supplying power and transmitting signals downhole. Moreover, the threading hole 13 on the threading joint 10 can not only realize the cable threading, but also has the function of limiting the position of the cable, avoiding the shaking of the cable and ensuring the normal operation of the cable.

In the method and device for converting a conventional tool into a cable-passing tool proposed by the present invention, two pass-through joints 10 can be installed at both ends of any conventional tool without changing the performance of the original conventional tool.

The conventional tool converted according to the method of the present invention is lowered into the well along with other tools of the pipe string, and the crossing joint 10 can be connected with other downhole tools by means of a tubing buckle.

In an optional embodiment of the present invention, the threading joint 10 is formed with a guiding section 15 between the connecting end 11 and the threading end 12. The inner wall surface of the guiding section 15 is a tapered surface, and the tapered surface gradually decreases in diameter from the threading end 12 to the connecting end 11. The inner diameter of the threading end 12 is smaller than the inner diameter of the guiding section 15 to form a limiting step 16. With the above-mentioned structure, the cables passing through the threading hole 13 can enter the working cavity 210 of the conventional tool under the guidance of the inner wall surface of the guide section 15, which is convenient for passing through and installing the cables.

In an optional example of this embodiment, the opening of the threading hole 13 at the end face of the threading end 12 is a limit opening 131. The limit opening 131 expands in diameter relative to the threading hole 13 and forms a sealing limit step 132. A sealing assembly 17 is arranged in the limit opening 131. The sealing assembly 17 includes a sealing head 171 and a sealing ring 172. The sealing head 171 is tubular and has a through hole 173 for cables to pass through. The sealing ring 172 is located in the limiting opening 131 and is threadedly connected with the inner wall of the limiting opening 131 , and is located between the sealing head 171 and the sealing limiting step 132 and is pressed on the sealing limiting step 132 by the sealing head 171 . The threading hole 13 is sealed by the sealing assembly 17, which prevents the liquid or gas in the working chamber 210 from leaking through the threading hole 13, and ensures the original function of the conventional tool 200.

In an optional example of this embodiment, the sealing ring 172 is a copper sealing ring. The sealing ring 172 can be deformed under the extrusion of the sealing head 171 and the sealing limit step 132 to further seal the space between the cable and the inner wall of the wiring hole 13 .

In an optional embodiment of the present invention, as shown in FIG. 7 , one end of the conventional tool 200 is a female joint 220 , and the other end of the conventional tool 200 is a male joint 230 . The connection end 11 of one crossing joint 10 is detachably connected to the female joint 220 through the upper connection assembly 20 , and the other connection end 11 of the crossing joint 10 is detachably connected to the male joint 230 through the lower connection assembly 40 .

In an alternative of the present invention, the conventional tool 200 may be a water plugging packer or other type of packer, and the conventional packer can also have a penetration cable by installing penetration joints 10 at both ends of the packer. Certainly, the conventional tool 200 may also be other common downhole tools, as long as it has an axially penetrating working chamber.

In an optional example of this embodiment, the upper connection assembly 30 includes an upper connecting body 31 and an upper connecting sleeve 32. Both the upper connecting body 31 and the upper connecting sleeve 32 are cylindrical. One end of the upper connecting body 31 is provided with an external thread that matches with the female joint 220, and the other end of the upper connecting body 31 is passed through one end of the upper connecting sleeve 32. An upper axial limit structure 33 is arranged between the upper connecting sleeve 32 and the upper connecting sleeve 32 to prevent the detachment of the upper connecting sleeve 32 .

Further, the upper axial limiting structure 33 includes a first limiting boss 331 and a second limiting boss 332 which are aligned and engaged. The first limiting boss 331 is arranged on the outer wall of the upper connecting body 31 and protrudes outward along the radial direction of the upper connecting body 31 .

In an optional example of this embodiment, the connection end 11 of the through joint 10 has a first connection part 111 and a second connection part 112, the first connection part 111 is connected to the guide section 15, and the outer diameter of the first connection part 111 is smaller than the outer diameter of the guide section 15 to form a third limiting step 113, the outer diameter of the second connecting part 112 is smaller than the outer diameter of the first connecting part 111 to form a fourth limiting step 114, and the other end of the upper connecting sleeve 32 is sleeved outside the first connecting part 111 And screwed with the first connecting part 111, the second connecting part 112 and the inner wall of the upper connecting sleeve 32 form an annular space, and the other end of the upper connecting body 31 is inserted into the annular space.

In an optional example, an anti-rotation nail 34 is disposed between the upper connecting sleeve 32 and the crossing joint 10 , and an anti-rotation plunger 35 is disposed between the second connecting portion 112 and the upper connecting sleeve 32 . Specifically, the anti-rotation nail 34 is arranged radially along the crossing joint 10, one end of the anti-rotation nail 34 penetrates the side wall of the upper connecting sleeve 32, and the other end of the anti-rotation nail 34 is inserted into the first connecting portion 111; The other end of 35 is passed through the second installation hole.

The anti-rotation nail 34 can prevent the relative rotation between the upper connecting sleeve 32 and the crossing joint 10, and the anti-rotation plunger 35 can prevent the relative rotation between the upper connecting body 31 and the crossing joint 10, thereby realizing a stable connection between the crossing joint 10 and the upper connecting assembly 30, thereby ensuring that the crossing joint 10 and the upper connecting assembly 30 will not fall off during the production process, and avoiding accidents.

In an optional example, the lower connection assembly 40 includes a lower connecting body 41 and a lower connecting sleeve 42. Both the lower connecting body 41 and the lower connecting sleeve 42 are in the shape of a cylinder. One end of the lower connecting body 41 is provided with an internal thread matched with the male joint 230. The end is sleeved outside the connection end of the other crossing joint 10 and is threadedly connected with the connection end.

Further, the lower axial limiting structure 43 includes a third limiting boss 431 and a fourth limiting boss 432 that engage in alignment. The third limiting boss 431 is arranged on the outer wall of the lower connecting body 41 and protrudes outward along the radial direction of the lower connecting body 41 .

In an optional example of this embodiment, the connection end 11 of the through joint 10 has a first connection part 111 and a second connection part 112, the first connection part 111 is connected to the guide section 15, and the outer diameter of the first connection part 111 is smaller than the outer diameter of the guide section 15 to form a third limiting step 113, the outer diameter of the second connecting part 112 is smaller than the outer diameter of the first connecting part 111 to form a fourth limiting step 114, and the other end of the lower connecting sleeve 42 is sleeved outside the first connecting part 111 And screwed with the first connecting part 111, the second connecting part 112 and the inner wall of the lower connecting sleeve 42 form an annular space, and the other end of the lower connecting body 41 is inserted into the annular space.

In an optional example, an anti-rotation nail 44 is disposed between the lower connecting sleeve 42 and the crossing joint 10 , and an anti-rotation plunger 45 is disposed between the second connecting portion 112 and the lower connecting sleeve 42 . Specifically, the anti-rotation nail 44 is arranged radially along the crossing joint 10, one end of the anti-rotation nail 44 penetrates the side wall of the lower connecting sleeve 42, and the other end of the anti-rotation nail 44 is inserted into the first connecting portion 111; The other end of 35 is passed through the third mounting hole.

The anti-rotation nail 44 can prevent the relative rotation between the lower connecting sleeve 42 and the crossing joint 10, and the anti-rotation plunger 35 can prevent the relative rotation between the lower connecting body 41 and the crossing joint 10, so as to realize a stable connection between the crossing joint 10 and the lower connecting assembly 40, thereby ensuring that the crossing joint 10 and the lower connecting assembly 40 will not fall off during the production process.

In an optional embodiment of the present invention, the threading end 12 of the other crossing joint 10 connected to the lower connection assembly 40 is also connected with an oil pipe short connector 50, and the two ends of the oil pipe short connector 50 are respectively provided with external threads, and one end of the oil pipe short connector 50 is inserted into the threading end 12 and screwed to the threading end 12,

Please refer to Fig. 1 to Fig. 5, now in conjunction with an embodiment, describe in detail the specific usage steps of the method and device for converting a conventional tool into a cable tool proposed by the present invention:

Firstly, assemble the upper connection assembly 30 and the lower connection assembly 40 respectively, set the upper connection sleeve 32 outside the upper connection body 31, and set the lower connection sleeve 42 outside the lower connection body 41; then connect a through joint 10 to the upper connection assembly 30;

Afterwards, the upper connecting body 31 is screwed on the female joint 220 of the conventional tool 200, and the lower connecting body 41 is screwed on the male joint 230 of the conventional tool 200;

Then, a sealing head 171 and a sealing ring 172 are inserted into the prepared cable; then the cable that has been sleeved with the sealing head 171 and the sealing ring 172 is passed through the limiting opening 131 of the crossing joint 10 (the crossing joint 10 is connected with the upper connection assembly 30), and passes through the working cavity 210 and the lower connecting body 41 of the conventional tool 200;

After that, pass the cable passing through the lower connecting body 41 through another threading hole 13 passing through the joint 10, then insert the sealing ring 172 and the sealing head 171 in sequence, and align the two threading holes 13 passing through the joint 10 in the same line;

Then, connect another crossing joint 10 to the lower connection assembly 40 and fix it through the lower connection sleeve 42;

Finally, after adjusting the lengths of the cables at both ends, screw the two sealing heads 171 to the crossing connector 10 to complete the assembly.

The purpose of the detailed explanations for the above-mentioned embodiments is only to explain the present invention so as to better understand the present invention. However, these descriptions cannot be interpreted as limiting the present invention for any reason. In particular, the various features described in different embodiments can also be combined arbitrarily with each other to form other embodiments. Unless there is a clear description to the contrary, these features should be understood as applicable to any embodiment, and are not limited to the described embodiment.

Claims (11)

1. A method for converting a conventional tool into a cable-passing tool. The conventional tool has an axially penetrating working cavity, and is characterized in that two threading joints are provided. The threading joint is cylindrical and has an axially penetrating accommodating cavity. One end of the threading joint is a connecting end, and the other end of the threading joint is a threading end. A threading hole is opened in the side wall of the threading joint. One end of the threading hole opens on the end surface of the threading end, and the other end of the threading hole opens on the inner wall of the threading joint; The threading hole of one of the passing joints, the working chamber of the conventional tool and the threading hole of the other passing joint are sequentially passed through, and then the two passing joints are respectively installed at both ends of the conventional tool, and the connecting ends are detachably connected with the ends of the conventional tool. 2. A device for converting a conventional tool into a cable-passing tool, characterized in that, the device for converting a conventional tool into a cable-passing tool comprises two threading joints, the threading joint is cylindrical and has an axially through accommodating cavity, one end of the threading joint is a connecting end, the other end of the threading joint is a threading end, a threading hole is opened in the side wall of the threading joint, one end of the threading hole is opened on the end face of the threading end, and the other end of the threading hole is opened on the inner wall of the threading joint. 3. The device for converting a conventional tool into a cable-passing tool as claimed in claim 2, wherein the threading joint is formed with a guide section between the connection end and the threading end, the inner wall surface of the guide section is a tapered surface, and the tapered surface gradually decreases in diameter from the threading end to the connection end, the inner diameter of the threading end is smaller than the inner diameter of the guide section to form a limiting step, and the other end of the threading hole opens on the limiting step. 4. The device for converting a conventional tool into a cable tool as claimed in claim 3, wherein the opening of the threading hole located at the end face of the threading end is a limit opening, the limit opening is expanded in diameter relative to the threading hole and a sealing limit step is formed, a sealing assembly is arranged in the limit opening, the sealing assembly includes a sealing head and a sealing ring, the sealing head is tubular and has a through hole for cables to pass through, and the sealing head is penetrated in the limit opening and connected to the inner wall of the limit opening Threaded connection, the sealing ring is located between the sealing head and the sealing limit step and is pressed on the sealing limit step by the sealing head. 5. The device for converting a conventional tool into a cable tool according to claim 4, wherein the sealing ring is a copper sealing ring. 6. as described in any one in claim 3 to 5 conventional tool is converted into the device of overcable tool, it is characterized in that, one end of described conventional tool has female connector, the other end of described conventional tool has male connector, the connecting end of one described crossing joint is detachably connected with described female joint by upper connection assembly, and the connecting end of another described crossing joint is detachably connected with described male joint by lower connecting assembly. 7. The device for converting a conventional tool into a cable tool as claimed in claim 6, wherein the upper connection assembly includes an upper connecting body and an upper connecting sleeve, both of which are cylindrical in shape, one end of the upper connecting body is provided with an external thread matched with the female joint, the other end of the upper connecting body is passed through one end of the upper connecting sleeve, the other end of the upper connecting sleeve is sleeved outside the connecting end of the crossing joint and is threadedly connected with the connecting end, the upper connecting body and the upper connecting body An upper axial limit structure is arranged between the sleeves to prevent the upper connecting sleeve from detaching. 8. The device for converting a conventional tool into a cable tool as claimed in claim 7, wherein the upper axial limiting structure includes a first limiting boss and a second limiting boss that are aligned and engaged, the first limiting boss is arranged on the outer wall of the upper connecting body and protrudes outward along the radial direction of the upper connecting body, and the second limiting boss is arranged at the port at one end of the upper connecting sleeve and protrudes inward along the radial direction of the upper connecting sleeve. 9. The device for converting a conventional tool into a cable tool as claimed in claim 7, wherein the connecting end has a first connecting portion and a second connecting portion, the first connecting portion is connected to the guide section, and the outer diameter of the first connecting portion is smaller than the outer diameter of the crossing joint to form a third limiting step, the outer diameter of the second connecting portion is smaller than the outer diameter of the first connecting portion to form a fourth limiting step, the upper connecting sleeve is sleeved outside the first connecting portion and threadedly connected with the first connecting portion, the second connecting portion and the inner of the upper connecting sleeve The walls form an annular space, and the other end of the upper connecting body is inserted into the annular space. 10 . The device for converting a conventional tool into a cable tool according to claim 9 , wherein an anti-rotation nail is provided between the upper connection sleeve and the passing joint, and an anti-rotation plunger is provided between the second connection portion and the upper connection sleeve. 11 . 11. The device for converting a conventional tool into a cable tool as claimed in claim 6, wherein the lower connection assembly includes a lower connection body and a lower connection sleeve, both of which are cylindrical in shape, one end of the lower connection body is provided with an internal thread matched with the male joint, the other end of the lower connection body is inserted into one end of the lower connection sleeve, the other end of the lower connection sleeve is sleeved outside the connection end of the other passing joint and is threadedly connected with the connection end, and the lower connection body and A lower axial stop structure is arranged between the lower connecting sleeves to prevent the lower connecting sleeves from detaching.