Assembly method of drill collar and chamber body and stabilizing sleeve

Abstract

The present invention provides an assembly method for a drill collar and a housing and a straightening sleeve. The assembly method uses at least one straightening sleeve, which can be sleeved outside the housing, and the outer wall of the straightening sleeve can cooperate with the inner wall of the drill collar; at least one straightening sleeve includes a first straightening sleeve, and the assembly method includes: step S10, sleeve the first straightening sleeve on the first step portion; step S20, install the first end of the housing into the first end of the drill collar through the second end of the drill collar, and the outer wall of the first straightening sleeve cooperates with the inner wall of the first step hole. Through the present invention, the technical problem that eccentricity is easy to occur when assembling the housing into the drill collar, resulting in scratches between the drill collar and the housing is alleviated.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum instruments, in particular to an assembly method of a drill collar and a bin body and a stabilizing sleeve. Background Art

[0002] In petroleum instruments, such as the pipe string for measuring inclination while drilling, a drill collar and a housing structure is often used. The drill collar is tubular and the housing is columnar. Various circuit boards are installed in the housing. The housing needs to be installed in the drill collar to achieve connection.

[0003] The size of the chamber is often large, and the length can reach nearly 1000mm. When assembling the drill collar, the assembly distance is long, which is prone to eccentricity. Once eccentricity occurs, the head and tail of the chamber will contact the inner wall of the drill collar, which will cause greater friction. The drill collar and the chamber are both metal parts. Eccentricity will cause the inner wall of the drill collar and the outer surface of the chamber to scratch each other, resulting in scratches, affecting the sealing, and even causing the drill collar and the chamber to stick together in severe cases. Summary of the invention

[0004] The purpose of the present invention is to provide a method for assembling a drill collar and a magazine body and a stabilizing sleeve, so as to alleviate the technical problem that when the magazine body is assembled into the drill collar, eccentricity is easy to occur, resulting in scratches between the drill collar and the magazine body.

[0005] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0006] The present invention provides an assembly method of a drill collar and a magazine body, wherein the first end of the magazine body can be installed into the first end of the drill collar through the second end of the drill collar, the first end of the magazine body is provided with a first step portion, and the drill collar is provided with a first step hole for accommodating the first step portion; the assembly method uses at least one centralizing sleeve, the centralizing sleeve can be sleeved on the magazine body, and the outer wall of the centralizing sleeve can cooperate with the inner wall of the drill collar;

[0007] At least one of the stabilizing sleeves includes a first stabilizing sleeve, and the assembling method includes:

[0008] Step S10, sleeve the first straightening sleeve onto the first step portion;

[0009] Step S20, installing the first end of the storage body into the first end of the drill collar through the second end of the drill collar, and the outer wall of the first straightening sleeve is matched with the inner wall of the first step hole.

[0010] In a preferred embodiment, the second end of the bin body is provided with a second step portion, and the drill collar is provided with a second step hole for accommodating the second step portion; at least one of the straightening sleeves includes a second straightening sleeve, and the assembly method includes: step S30, sleeve the second straightening sleeve on the second step portion, and the step S30 is implemented before the step S20; in the step S20, the outer wall of the second straightening sleeve cooperates with the inner wall of the second step hole.

[0011] In a preferred embodiment, a third step portion is provided at the first end of the bin body, and the third step portion is located on a side of the first step portion away from the second step portion, and the drill collar is provided with a third step hole for accommodating the third step portion; at least one of the straightening sleeves includes a third straightening sleeve, and the assembly method includes: step S40, sleeved the third straightening sleeve on the third step portion, and the step S40 is implemented before the step S20; in the step S20, the outer wall of the third straightening sleeve cooperates with the inner wall of the third step hole.

[0012] In a preferred embodiment, before the centralizing sleeve is sleeved outside the silo, the centralizing sleeve is heated to expand the inner hole of the centralizing sleeve.

[0013] In a preferred embodiment, the straightening sleeve is sleeved on the outside of the warehouse body along the sleeve direction; the inner hole of the straightening sleeve includes a matching step hole portion and a snap-on step hole portion, the matching step hole portion and the snap-on step hole portion are distributed along the sleeve direction, and the inner diameter of the snap-on step hole portion is smaller than the inner diameter of the matching step hole portion; and the outer wall of the warehouse body is respectively fitted with the matching step hole portion and the snap-on step hole portion.

[0014] In a preferred embodiment, the straightening sleeve is sleeved outside the warehouse body along a sleeve direction; the outer wall of the straightening sleeve has a surrounding convex ridge, and the surrounding convex ridge is inclined from the inside to the outside along the sleeve direction.

[0015] In a preferred embodiment, the inclination angle of the surrounding convex ridge is 30° to 45°.

[0016] In a preferred embodiment, the depth of the surrounding convex ridges is 1 mm to 1.5 mm, and the distance between two adjacent surrounding convex ridges is 2 mm to 3 mm.

[0017] In a preferred embodiment, the straightening sleeve is made of PEEK material.

[0018] The present invention provides a straightening sleeve, which is applied to the above-mentioned assembly method of the drill collar and the magazine body. The straightening sleeve can be sleeved on the outside of the magazine body, and the outer wall of the straightening sleeve can cooperate with the inner wall of the drill collar. The outer wall of the straightening sleeve has a surrounding convex ridge, and the surrounding convex ridge is inclined from the inside to the outside along an axial direction of the straightening sleeve.

[0019] The characteristics and advantages of the present invention are:

[0020] By adopting the assembly method provided by the present invention, the first straightening sleeve is sleeved on the outside of the warehouse body, and the outer wall of the first straightening sleeve cooperates with the inner wall of the drill collar, which can reduce the deflection of the warehouse body in the drill collar, and is beneficial to keep the axis of the first straightening sleeve, the axis of the warehouse body and the axis of the drill collar coincident, or reduce the degree of deviation, during the process of installing the warehouse body into the drill collar, so as to ensure that the warehouse body is smoothly installed into the drill collar, thereby reducing the contact between the warehouse body and the drill collar. The straightening sleeve can be made of non-metal or softer metal, which can effectively avoid the influence of the straightening sleeve on the warehouse body and the drill collar. Therefore, through this assembly method, the problem of eccentricity that is easy to occur when the warehouse body is assembled into the drill collar is alleviated, and the scratches between the drill collar and the warehouse body are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the coordination between the centralizing sleeve, the drill collar and the chamber provided by the present invention;

[0023] Figure 2 A schematic diagram of the coordination between the centralizing sleeve and the bin body provided by the present invention;

[0024] Figure 3 Schematic diagram of the structure of the drill collar;

[0025] Figure 4 A schematic diagram of the structure of the righting sleeve provided by the present invention;

[0026] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0027] Figure 6 A schematic diagram of the cooperation between the first stabilizing sleeve, the third stabilizing sleeve, the drill collar and the chamber provided by the present invention;

[0028] Figure 7 A schematic diagram of the cooperation between the second stabilizing sleeve, the drill collar and the chamber provided by the present invention;

[0029] Figure 8 A schematic diagram of the assembly method of the drill collar and the chamber body provided by the present invention.

[0030] Description of Figure Numbers:

[0031] 10. Drill collar; 11. First end of drill collar; 12. Second end of drill collar; 13. First step hole; 14. Second step hole; 15. Third step hole;

[0032] 20. bin body; 21. first end of bin body; 22. second end of bin body; 23. first step portion; 24. second step portion; 25. third step portion;

[0033] 30. Straightening sleeve; 31. Matching step hole; 32. Clamping step hole;

[0034] 33. Surrounding ridges;

[0035] 40. a first righting sleeve; 41. a sleeve connection direction of the first righting sleeve;

[0036] 50. Second righting sleeve; 51. Sleeve connection direction of the second righting sleeve;

[0037] 60. The third righting sleeve. 61. The sleeve connection direction of the third righting sleeve. DETAILED DESCRIPTION

[0038] 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.

[0039] Embodiment 1

[0040] The present invention provides a method for assembling a drill collar 10 and a chamber 20, wherein the first end 21 of the chamber 20 can be inserted into the first end 11 of the drill collar through the second end 12 of the drill collar. Figure 1-Figure 3 and Figure 6 As shown, the first end 21 of the silo body is provided with a first step portion 23, and the drill collar 10 is provided with a first step hole 13 for accommodating the first step portion 23; the assembly method uses at least one straightening sleeve 30, the straightening sleeve 30 can be sleeved outside the silo body 20, and the outer wall of the straightening sleeve 30 can cooperate with the inner wall of the drill collar 10; at least one straightening sleeve 30 includes a first straightening sleeve 40, such as Figure 8As shown, the assembly method includes: step S10, sleeve the first stabilizing sleeve 40 on the first step portion 23; step S20, install the first end 21 of the magazine body into the first end 11 of the drill collar through the second end 12 of the drill collar, and the outer wall of the first stabilizing sleeve 40 cooperates with the inner wall of the first step hole 13.

[0041] By adopting this assembly method, the first straightening sleeve 40 is sleeved on the outside of the silo 20, and the outer wall of the first straightening sleeve 40 cooperates with the inner wall of the drill collar 10, which can reduce the deflection of the silo 20 in the drill collar 10, and is conducive to the process of inserting the silo 20 into the drill collar 10, so that the axis of the first straightening sleeve 40, the axis of the silo 20 and the axis of the drill collar 10 remain coincident, or reduce the degree of deviation, to ensure that the silo 20 is stably inserted into the drill collar 10, thereby reducing the contact between the silo 20 and the drill collar 10. The straightening sleeve 30 can be made of non-metal or softer metal, which can effectively avoid the influence of the straightening sleeve 30 on the silo 20 and the drill collar 10. Therefore, by this assembly method, the problem of eccentricity that is easy to occur when the silo 20 is assembled into the drill collar 10 is alleviated, and the scratches between the drill collar 10 and the silo 20 are reduced.

[0042] Furthermore, if Figure 1-Figure 3 and Figure 7 As shown, the second end 22 of the silo is provided with a second step portion 24, and the drill collar 10 is provided with a second step hole 14 for accommodating the second step portion 24; at least one stabilizing sleeve 30 includes a second stabilizing sleeve 50, and the assembly method includes: step S30, sleeve the second stabilizing sleeve 50 on the second step portion 24, and step S30 is implemented before step S20; in step S20, the outer wall of the second stabilizing sleeve 50 is matched with the inner wall of the second step hole 14. The first stabilizing sleeve 40 and the second stabilizing sleeve 50 are respectively arranged at both ends of the silo 20, which is conducive to moving the silo 20 in the drill collar 10, and ensuring that the silo 20 moves more smoothly along the axis of the drill collar 10.

[0043] Furthermore, if Figure 1-Figure 3 and Figure 6 As shown, the first end 21 of the bin body is provided with a third step portion 25, and the third step portion 25 is located on the side of the first step portion 23 away from the second step portion 24, that is, the third step portion 25 is located on the outside of the first step portion 23, and the outer diameter of the third step portion 25 is smaller than the outer diameter of the first step portion 23, and the drill collar 10 is provided with a third step hole 15 for accommodating the third step portion 25; at least one straightening sleeve 30 includes a third straightening sleeve 60, and the assembly method includes: step S40, the third straightening sleeve 60 is sleeved on the third step portion 25, and step S40 is implemented before step S20; in step S20, the outer wall of the third straightening sleeve 60 cooperates with the inner wall of the third step hole 15.

[0044] The first stabilizing sleeve 40, the second stabilizing sleeve 50 and the third stabilizing sleeve 60 cooperate with each other, so that in the process of loading the silo 20 into the drill collar 10 and removing the silo 20 from the drill collar 10, the stability of the movement of the silo 20 is improved, the eccentricity is reduced, and the scratches on the silo 20 and the drill collar 10 are effectively avoided. The first end 21 of the silo is the head, that is, the end that first enters the drill collar 10. Two stabilizing sleeves 30 are arranged on the head, which is conducive to ensuring that the silo 20 is protected by the stabilizing sleeve 30 when passing through the first step hole 13 and the head of the silo 20 enters the third step hole 15, avoiding scratches on the inner wall of the drill collar 10 and the outer surface of the silo 20, thereby ensuring smooth disassembly and assembly, improving service life, and realizing repeated use.

[0045] The straightening sleeve 30 can be made of polytetrafluoroethylene or PEEK (polyetheretherketone resin). In order to improve the effect, the inventor has made further improvements: the straightening sleeve 30 is made of PEEK material, which is not easy to plastically deform and has a longer service life.

[0046] Before the straightening sleeve 30 is sleeved on the outside of the silo 20, the straightening sleeve 30 is heated to expand the inner hole of the straightening sleeve 30, so as to facilitate the installation of the straightening sleeve 30 on the silo 20, so that the straightening sleeve 30 and the silo 20 are more closely connected, and the reliability of the connection between the two is improved. Preferably, the heating temperature of the straightening sleeve 30 is 200°C.

[0047] The straightening sleeve 30 is sleeved outside the silo 20 along the sleeve direction, that is, the straightening sleeve 30 moves relative to the silo 20 along the sleeve direction to achieve the installation of the straightening sleeve 30 on the silo 20; the sleeve direction is parallel to the axis of the silo 20. Figure 2 As shown, the first straightening sleeve 40 and the third straightening sleeve 60 are both along Figure 2 As shown, the first straightening sleeve moves from right to left to be sleeved on the warehouse body 20, and the sleeve direction 41 of the first straightening sleeve and the sleeve direction 61 of the third straightening sleeve are both Figure 2 The second straightening sleeve 50 is along the right to left direction; Figure 2 As shown, the second straightening sleeve moves from left to right to be sleeved on the warehouse body 20, and the sleeve direction 51 of the second straightening sleeve is Figure 2 Direction from left to right as shown.

[0048] In one embodiment of the present invention, the inner hole of the straightening sleeve 30 includes a matching step hole portion 31 and a snap-fit ​​step hole portion 32, the matching step hole portion 31 and the snap-fit ​​step hole portion 32 are distributed along the sleeve connection direction, and the inner diameter of the snap-fit ​​step hole portion 32 is smaller than the inner diameter of the matching step hole portion 31; and the outer wall of the silo 20 is respectively fitted with the matching step hole portion 31 and the snap-fit ​​step hole portion 32. During installation, the inner hole of the straightening sleeve 30 is expanded by heating, and the inner diameter of the snap-fit ​​step hole portion 32 is increased, so that the snap-fit ​​step portion can pass over the step portion of the silo 20; after the straightening sleeve 30 is moved into place, the temperature is reduced, such as Figure 6 As shown, the engaging step hole portion 32 and the matching step hole portion 31 are reduced in size and form a close contact with the outer wall of the magazine body 20. In this way, the straightening sleeve 30 and the magazine body 20 can be connected more closely, especially in the process of removing the magazine body 20 from the drill collar 10, the straightening sleeve 30 can be effectively prevented from falling off from the magazine body 20, so that under the action of the straightening sleeve 30, the magazine body 20 can be smoothly removed from the drill collar 10.

[0049] Furthermore, an interference fit is adopted between the mating step hole portion 31 and the silo body 20, and a heat-fitting method is adopted during assembly, that is, before the straightening sleeve 30 is sleeved on the outside of the silo body 20, the straightening sleeve 30 is heated to ensure that the straightening sleeve 30 is not easy to fall off after assembly.

[0050] In the axial matching position, the outer diameter of the stabilizing sleeve 30 is larger than the outer diameter of the housing 20 and smaller than the inner diameter of the drill collar 10, which can prevent the housing 20 and the drill collar 10 from scratching each other during the assembly process. Specifically, taking the second stabilizing sleeve 50 as an example, the size can be set as follows: (unit: mm), the inner hole size of the drill collar 10 is The outer diameter of the bin body 20 is The outer diameter of the straightening sleeve 30 is The size of the part where the bin body 20 and the matching step hole 31 match is The size of the matching step is

[0051] like Figure 4 and Figure 6 As shown, the outer wall of the straightening sleeve 30 has a surrounding convex ridge 33, which is in the shape of a ring surrounding the axis of the straightening sleeve 30, and has an inner side close to the axis of the straightening sleeve 30 and an outer side away from the axis of the straightening sleeve 30, and the surrounding convex ridge 33 is inclined from the inner side to the outer side along the sleeve connection direction. Figure 2 and Figure 6 As shown, the surrounding ridges 33 on the first straightening sleeve 40 and the surrounding ridges 33 on the third straightening sleeve 60 are both inclined in the direction of Figure 6 As shown, it tilts from right to left from inside to outside; Figure 2 and Figure 7 As shown, the surrounding ridge 33 on the second straightening sleeve 50 is inclined in the direction of Figure 7 As shown, the surrounding ridges 33 of the straightening sleeves 30 at both ends of the bin body 20 are inclined in opposite directions from the inside to the outside and from the left to the right.

[0052] By providing the surrounding ridge 33, the characteristic of the surrounding ridge 33 being easy to deform is utilized to avoid scratches on the inner wall of the straightening sleeve 30 and the drill collar 10. The surrounding ridge 33 may be spiral, that is, it extends spirally along the axis of the straightening sleeve 30; the surrounding ridge 33 may also be circular, and the outer wall of the straightening sleeve 30 is provided with a plurality of surrounding ridges 33, and the plurality of surrounding ridges 33 are distributed at intervals along the axis of the straightening sleeve 30. Preferably, the surrounding ridge 33 is circular, so that the surrounding ridge 33 and the inner wall of the drill collar 10 can be smoothly matched, thereby ensuring the straightening effect and reducing the occurrence of scratches between the two.

[0053] The surrounding ridge 33 has a root portion located on the inner side and a tip portion located on the outer side. Figure 4 and Figure 5 As shown, in the longitudinal section, the line connecting the midpoint of the root of the surrounding ridge 33 to the tip of the surrounding ridge 33 is the inclination direction of the surrounding ridge 33. The angle between the reference line perpendicular to the axis of the straightening sleeve 30 and the inclination direction is recorded as the inclination angle K of the surrounding ridge 33. The inclination angle K of the surrounding ridge 33 is 30° to 45°. By limiting the inclination angle, it can be ensured that the straightening sleeve 30 is within the range of elastic deformation and effectively reduces the friction with the inner wall of the drill collar 10; more preferably, K=40°.

[0054] Furthermore, if Figure 5 As shown, the depth H of the surrounding ridge 33 is 1mm to 1.5mm, and the spacing L between two adjacent surrounding ridges 33 is 2mm to 3mm, which can ensure the strength of the straightening sleeve 30 while avoiding cracks and deformation during use, and is more prone to elastic deformation to reduce friction with the inner wall of the drill collar 10.

[0055] Embodiment 2

[0056] The present invention provides a stabilizing sleeve 30, which is applied to the assembly method of the drill collar 10 and the chamber 20. The stabilizing sleeve 30 can be sleeved outside the chamber 20, and the outer wall of the stabilizing sleeve 30 can cooperate with the inner wall of the drill collar 10. Figure 4 As shown, the outer wall of the stabilizing sleeve 30 has a surrounding ridge 33 , and the surrounding ridge 33 is inclined along an axial direction of the stabilizing sleeve 30 from the inside to the outside.

[0057] The straightening sleeve 30 is sleeved outside the silo 20 along the sleeve direction, that is, the straightening sleeve 30 moves relative to the silo 20 along the sleeve direction to achieve installation of the straightening sleeve 30 on the silo 20. The sleeve direction is parallel to the axial direction of the straightening sleeve 30 and the axial direction of the silo 20.

[0058] The surrounding ridge 33 is inclined from the inside to the outside along the axial direction of the straightening sleeve 30. Figure 2 and Figure 6 As shown, for the straightening sleeve 30 connected to the right end of the bin body 20, the sleeve direction is Figure 2 In the direction from right to left as shown, the surrounding ridge 33 is inclined from the inside to the outside along the axial direction of the straightening sleeve 30. The axial direction of the straightening sleeve 30 is specifically Figure 2 Direction from right to left as shown.

[0059] like Figure 2 and Figure 7 As shown, for the straightening sleeve 30 connected to the left end of the bin body 20, the sleeve direction is Figure 2 In the direction from left to right as shown, the surrounding convex ridge 33 is inclined from the inside to the outside along the axial direction of the straightening sleeve 30. The axial direction of the straightening sleeve 30 is specifically Figure 2 Direction from left to right as shown.

[0060] The straightening sleeve 30 can reduce the deflection of the housing 20 in the drill collar 10, which is conducive to the axis of the housing 20 and the axis of the drill collar 10 being kept coincident or the degree of deviation being reduced during the process of the housing 20 being installed in the drill collar 10, so as to ensure that the housing 20 is smoothly installed in the drill collar 10, thereby reducing the contact between the housing 20 and the drill collar 10. When the housing 20 is pushed into or pulled out of the drill collar 10, the straightening sleeve 30 first contacts the inner wall of the drill collar 10, plays a role in straightening and protection, and avoids scratches on the inner wall of the drill collar 10 and the outer wall of the housing 20. The straightening sleeve 30 can be made of non-metal or soft metal, which can effectively avoid the influence of the straightening sleeve 30 on the housing 20 and the drill collar 10. By providing the surrounding rib 33, the characteristic of the surrounding rib 33 being easy to deform is utilized to avoid scratches on the straightening sleeve 30 and the inner wall of the drill collar 10.

[0061] The above are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A method for assembling a drill collar and a magazine body, wherein the first end of the magazine body can be installed into the first end of the drill collar through the second end of the drill collar, the first end of the magazine body is provided with a first step portion, and the drill collar is provided with a first step hole for accommodating the first step portion; characterized in that: The assembly method uses at least one stabilizing sleeve, which can be sleeved outside the chamber body, and the outer wall of the stabilizing sleeve can cooperate with the inner wall of the drill collar; At least one of the stabilizing sleeves includes a first stabilizing sleeve, and the assembling method includes: Step S10, sleeve the first straightening sleeve onto the first step portion; Step S20, inserting the first end of the storage body into the first end of the drill collar through the second end of the drill collar, and the outer wall of the first straightening sleeve is matched with the inner wall of the first step hole; The second end of the bin body is provided with a second step portion, and the drill collar is provided with a second step hole for accommodating the second step portion; at least one of the centralizing sleeves includes a second centralizing sleeve, and the assembly method includes: Step S30, sleeve the second righting sleeve onto the second step portion, wherein the step S30 is performed before the step S20; In the step S20, the outer wall of the second straightening sleeve is matched with the inner wall of the second step hole; The first end of the bin body is provided with a third step portion, the third step portion is located on a side of the first step portion away from the second step portion, the drill collar is provided with a third step hole for accommodating the third step portion; at least one of the centralizing sleeves includes a third centralizing sleeve, and the assembly method includes: Step S40, sleeve the third straightening sleeve on the third step portion, and the step S40 is performed before the step S20; In the step S20, the outer wall of the third straightening sleeve is matched with the inner wall of the third step hole; Before the centralizing sleeve is sleeved on the outside of the silo, the centralizing sleeve is heated to expand the inner hole of the centralizing sleeve; The straightening sleeve is sleeved on the outside of the warehouse body along a sleeve direction; the outer wall of the straightening sleeve has a surrounding convex ridge, and the surrounding convex ridge is inclined from the inside to the outside along the sleeve direction.

2. The assembly method of the drill collar and the chamber body according to claim 1, characterized in that: The straightening sleeve is sleeved on the outside of the warehouse body along the sleeve direction; the inner hole of the straightening sleeve includes a matching step hole portion and a snap-on step hole portion, the matching step hole portion and the snap-on step hole portion are distributed along the sleeve direction, and the inner diameter of the snap-on step hole portion is smaller than the inner diameter of the matching step hole portion; and the outer wall of the warehouse body is respectively fitted with the matching step hole portion and the snap-on step hole portion.

3. The method for assembling a drill collar and a chamber according to claim 1, characterized in that: The inclination angle of the surrounding convex ridge is 30° to 45°.

4. The assembly method of the drill collar and the chamber body according to claim 1, characterized in that: The depth of the surrounding convex ridges is 1 mm to 1.5 mm, and the distance between two adjacent surrounding convex ridges is 2 mm to 3 mm.

5. The method for assembling a drill collar and a chamber body according to claim 1, characterized in that: The straightening sleeve is made of PEEK material.

6. A stabilizing sleeve, applied to the assembly method of a drill collar and a chamber body according to any one of claims 1 to 5, characterized in that: The stabilizing sleeve can be sleeved outside the chamber body, and the outer wall of the stabilizing sleeve can cooperate with the inner wall of the drill collar. The outer wall of the straightening sleeve has a surrounding convex ridge, and the surrounding convex ridge is inclined from the inside to the outside along an axial direction of the straightening sleeve.

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