Damping centralizing structure of nylon centralizer

Abstract

The utility model provides a damping centralizing structure of a nylon centralizer, which comprises a first connecting block and a damping assembly arranged on the outer side of the first connecting block, a first limiting block is arranged on the right side of the first connecting block, and a first connecting seat is arranged on the right side of the first limiting block; the damping assembly comprises a protection block arranged on the outer side of the first connecting block, a movable telescopic rod is installed on the outer side of the protection block, a spring body is installed on the outer side of the movable telescopic rod, a base is arranged on the outer side of the spring body, a damper is arranged on the inner side of the base, a connecting block is arranged on the outer side of the base, and an armature block is installed on the upper side of the connecting block. A connecting bolt is connected to the inner side of the armature block, a top cover is arranged on the inner side of the connecting bolt, and an oil rod through hole is formed in the top cover. The damping centralizing structure of the nylon centralizer solves the problems that some existing nylon centralizers are difficult to conduct damping centralizing on the nylon centralizers, and meanwhile the nylon centralizers are difficult to rapidly assemble and disassemble in a short time.

Description

Technical Field

[0001] The utility model relates to the technical field of nylon centralizers, in particular to a shock-absorbing and centralizing structure of a nylon centralizer. Background Technique

[0002] At present, the old oilfields have entered the high water cut development stage. Due to the certain inclination of a large number of oil wells, and the oilfields are mainly exploited by pumping units, the eccentric wear between the sucker rods, their couplings and the inner wall of the tubing is becoming more and more serious. The service life of the tubing and sucker rods is greatly shortened, and the oil well operations are frequent, which has seriously affected the development and production of the oilfields. In order to prevent eccentric wear between the sucker rod body, its couplings and the inner wall of the tubing, centralizers need to be used. The existing practical centralizers are difficult to play a shock-absorbing role during vibration, which affects the service life of the sucker rods. Therefore, it is very important to design a shock-absorbing and centralizing structure of a nylon centralizer. For example:

[0003] A snap-type nylon sucker rod centralizer with the Chinese patent publication number CN110454095B includes a centralizing slip. The upper end of the outer surface of the centralizing slip is fixedly clamped with an upper end head, and the lower end of the outer surface of the centralizing slip is clamped with a lower end head through upper and lower retaining rings. A protective device is fixedly sleeved in the middle of the outer surface of the centralizing slip. The protective device includes a rubber wing sleeve, and an inner telescopic plate is fixedly connected to the outer surface of the rubber wing sleeve. For this snap-type nylon sucker rod centralizer, through the combined connection between the outer fixing plate and the inner telescopic plate, and the position of the outer fixing plate is limited by the adjusting rod. When the outer fixing plate collides with the working oil well, the impact force received by the outer fixing plate is greater than the elastic force of the compression spring pushing it outward at this time and moves inward, avoiding the wear of the outer fixing plate due to the collision of the working oil well, so as to ensure that the pipe string can smoothly carry out downhole work and improve the success rate of downhole construction operations.

[0004] However, it is difficult to shock-absorb and centralize some nylon centralizers, and at the same time, it is difficult to quickly assemble and disassemble them in a short time.

[0005] Therefore, those skilled in the art urgently need to design a shock-absorbing and centralizing structure of a nylon centralizer. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the utility model provides a shock-absorbing and centralizing structure of a nylon centralizer, which solves the problems that it is difficult to shock-absorb and centralize some existing nylon centralizers, and at the same time, it is difficult to quickly assemble and disassemble them in a short time.

[0008] (2) Technical Solutions

[0009] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0010] A shock-absorbing and centering structure for a nylon centralizer, the shock-absorbing and centering structure includes a first connecting block, and a shock-absorbing assembly arranged outside the first connecting block, where,

[0011] A first limiting block is arranged on the right side of the first connecting block, a first connecting seat is arranged on the right side of the first limiting block, a second connecting block is installed on the upper side of the first connecting seat, a second limiting block is connected to the left side of the second connecting block, a second connecting seat is installed on the left side of the second limiting block, and a placement hole is opened inside the second connecting seat;

[0012] The shock-absorbing assembly includes a protective block arranged outside the first connecting block, a movable telescopic rod is installed on the outside of the protective block, a spring body is installed on the outside of the movable telescopic rod, a base is arranged on the outside of the spring body, a damper is arranged on the inner side of the base, a connecting block is arranged on the outside of the base, a fixing block is installed on the upper side of the connecting block, a connecting bolt is connected to the inner side of the fixing block, a top cover is arranged on the inner side of the connecting bolt, and an oil rod through hole is opened inside the top cover.

[0013] In a possible implementation manner, the first limiting block is symmetrically arranged with respect to the diagonal of the first connecting block, and the first limiting block is in a "T" shape.

[0014] In a possible implementation manner, the first limiting block is relatively snap-fitted with the first connecting seat, and the first connecting block and the first connecting seat can form a hollow cylindrical structure.

[0015] In a possible implementation manner, the second limiting block is symmetrically arranged with respect to the diagonal of the second connecting block, the second limiting block is relatively snap-fitted with the second connecting seat, and the second connecting block and the second connecting seat can form a hollow cylindrical structure.

[0016] In a possible implementation manner, the protective block is in an arc-shaped structure, and the protective block is relatively snap-fitted with both the first connecting block and the first connecting seat.

[0017] In a possible implementation manner, the movable telescopic rod penetrates through the inside of the spring body, and the movable telescopic rod is arranged at equal angles with respect to the center of the base.

[0018] In a possible implementation manner, the damper is symmetrically arranged left and right with respect to the center of the protective block.

[0019] In a possible implementation manner, the connecting block is arranged at equal angles with respect to the center of the base, and the connecting bolt penetrates through the inside of the connecting block.

[0020] In a possible implementation manner, the connecting bolt is relatively threadedly connected to both the connecting block and the fixing block.

[0021] (3) Beneficial effects

[0022] The utility model provides a shock-absorbing and centering structure for a nylon centralizer. By setting a first limiting block and a second limiting block, the first limiting block outside the first connecting block is engaged with the groove in the first connecting seat, and the second limiting block outside the second connecting block is engaged with the groove in the second connecting seat, so that the first connecting block is assembled with the first connecting seat, and the second connecting seat is assembled with the second connecting block, facilitating the rapid assembly of the nylon centralizer.

[0023] The utility model provides a shock-absorbing and centering structure for a nylon centralizer. By setting a shock-absorbing assembly and a damper, the assembled nylon centralizer is placed on the base, so that the first connecting block is engaged with the protective block outside the first connecting seat and inside the base, and the second connecting block is engaged with the protective block outside the second connecting seat and inside the top cover. When the sucker rod is arranged in the rod through-hole inside the nylon centralizer and drives the nylon centralizer to vibrate, the protective block drives the movable telescopic rod to move, and the spring body is compressed or expanded. At this time, the external controller controls the opening of the damper, so that the damper alleviates the movement of the protective block, avoiding the weakening of the elastic deformation of the spring body, and facilitating the realization of the shock-absorbing and centering function of the nylon centralizer.

[0024] The utility model provides a shock-absorbing and centering structure for a nylon centralizer. By setting an adapter block and an adapter bolt, after the adapter block contacts the fixed block, the adapter bolt is tightened, so that the adapter block is connected to the fixed block through the adapter bolt, and the nylon centralizer is assembled with the shock-absorbing and centering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the content of the specification, the following describes in detail with reference to the preferred embodiments of the utility model and the accompanying drawings.

[0026] Figure 1 It is a front view sectional structure schematic diagram in the first embodiment;

[0027] Figure 2 It is a top view structure schematic diagram of the connection between the second limiting block and the second connecting seat in the first embodiment;

[0028] Figure 3 It is an overall exploded structure schematic diagram of the connection between the first limiting block and the first connecting seat in the first embodiment;

[0029] Figure 4 It is a top view structure schematic diagram of the connection between the shock-absorbing assembly and the base in the first embodiment;

[0030] Figure 5 In the first embodimentFigure 1 Schematic diagram of the enlarged structure at position A in the middle

[0031] Legend: 1 - First connecting block; 2 - First limiting block; 3 - First connecting seat; 4 - Second connecting block; 5 - Second limiting block; 6 - Second connecting seat; 7 - Shock-absorbing assembly; 701 - Protective block; 702 - Movable telescopic rod; 703 - Spring body; 8 - Damper; 9 - Base; 10 - Connecting block; 11 - Fixed connecting block; 12 - Connecting bolt; 13 - Top cover; 14 - Oil rod through hole; 15. Placement hole. Specific implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In addition, for the convenience of description below, the "upper", "lower", "left", "right", etc. cited are consistent with the upper, lower, left, right, etc. of the accompanying drawings themselves. The "first", "second", etc. below are for distinction in description and have no other special meanings.

[0033] In view of the problems existing in the prior art, the present invention provides a shock-absorbing and centering structure for a nylon centralizer. The shock-absorbing and centering structure includes a first connecting block and a shock-absorbing assembly arranged outside the first connecting block, and the specific description is as follows:

[0034] 1 - First connecting block

[0035] A first limiting block is arranged on the right side of the first connecting block, a first connecting seat is arranged on the right side of the first limiting block, a second connecting block is installed on the upper side of the first connecting seat, a second limiting block is connected to the left side of the second connecting block, a second connecting seat is installed on the left side of the second limiting block, and a placement hole is opened inside the second connecting seat. The first limiting block outside the first connecting block is engaged with the groove inside the first connecting seat, and the second limiting block outside the second connecting block is engaged with the groove inside the second connecting seat, so that the first connecting block and the first connecting seat, and the second connecting seat and the second connecting block are assembled, which is convenient for realizing the rapid assembly of the nylon centralizer.

[0036] In some examples, the first limiting blocks are symmetrically arranged about the diagonal of the first connecting block, and the first limiting block is in a "T" shape. The first limiting block is in a "T" shape, so that after the first limiting block is engaged with the first connecting seat, the first connecting block and the first connecting seat can be connected and fastened through the first limiting block.

[0037] In some examples, the first limit block is relatively engaged with the first connection seat, and the first connection block and the first connection seat can form a hollow cylindrical structure. After the first connection block and the first connection seat are connected and fastened by the first limit block, the first connection block and the first connection seat form a hollow cylindrical structure.

[0038] In some examples, the second limit block is symmetrically arranged about the diagonal of the second connection block, and the second limit block is relatively engaged with the second connection seat, and the second connection block and the second connection seat can form a hollow cylindrical structure. The second limit block outside the second connection block is "T" shaped, and after the second limit block is engaged with the second connection seat, the second connection block and the second connection seat are in close contact.

[0039] 2-Shock-absorbing assembly

[0040] The above-mentioned shock-absorbing assembly includes a protective block arranged on the outside of the first connecting block, a movable telescopic rod is installed on the outside of the above-mentioned protective block, a spring body is installed on the outside of the above-mentioned movable telescopic rod, a base is arranged on the outside of the above-mentioned spring body, a damper is arranged on the inside of the above-mentioned base, a connecting block is arranged on the outside of the above-mentioned base, a fixing block is installed on the upper side of the above-mentioned connecting block, a connecting bolt is connected to the inside of the above-mentioned fixing block, a top cover is arranged on the inside of the above-mentioned connecting bolt, and an oil rod through hole is opened inside the above-mentioned top cover. The assembled nylon centralizer is placed on the base so that the first connecting block is engaged with the protective block on the outside of the first connecting seat and the inside of the base, and the second connecting block is engaged with the protective block on the outside of the second connecting seat and the inside of the top cover. When the sucker rod is set in the oil rod through hole inside the nylon centralizer and causes the nylon centralizer to vibrate, the protective block drives the movable telescopic rod to move, and the spring body is compressed or relaxed. At this time, the external controller controls the opening of the damper so that the damper relieves the movement of the protective block to avoid weakening the elastic deformation of the spring body, thereby facilitating the realization of the shock-absorbing and straightening function of the nylon centralizer.

[0041] In some examples, the protective block is in an arc-shaped structure, and the protective block is relatively engaged with the first connecting block and the first connecting seat, so that the first connecting block is engaged with the protective block on the outside of the first connecting seat and the inside of the base, and the second connecting block is engaged with the protective block on the outside of the second connecting seat and the inside of the top cover, so that the protective block is in wrapping contact with the outside of the nylon centralizer.

[0042] In some examples, the movable telescopic rod runs through the interior of the spring body, and the movable telescopic rod is arranged at equal angles with respect to the center of the base. When the protective block pushes the movable telescopic rod to move due to vibration, the spring body undergoes elastic deformation.

[0043] In some examples, the above-mentioned damper is symmetrically arranged left and right with respect to the center of the protection block. After the damper is controlled to be opened through an external control device, it can relieve the movement tendency of the movable telescopic rod caused by the vibration of the nylon aligner, playing a role in shock absorption.

[0044] In some examples, the above-mentioned connecting block is arranged at equal angles with respect to the center of the base, and the connecting bolt passes through the inside of the connecting block. The connecting blocks are arranged at equal angles on the outside of the base, and the connecting blocks correspond to the fixed connecting blocks one by one, facilitating subsequent connection.

[0045] In some examples, the above-mentioned connecting bolt is relatively threadedly connected to both the connecting block and the fixed connecting block. After the connecting block contacts the fixed connecting block, tighten the connecting bolt so that the connecting block and the fixed connecting block are connected through the connecting bolt, and the nylon aligner and the shock-absorbing aligning mechanism are assembled. Embodiment 1:

[0046] Based on the above concept, as Figures 1-5 shown, in a specific application scenario of a nylon aligner shock-absorbing aligning structure provided by the present utility model, as Figure 1 shown, the shock-absorbing aligning structure includes a first connecting block 1 and a shock-absorbing assembly 7 arranged on the outside of the first connecting block 1. Among them,

[0047] As Figure 1 shown, a first limiting block 2 is arranged on the right side of the first connecting block 1, a first connecting seat 3 is arranged on the right side of the first limiting block 2, a second connecting block 4 is installed on the upper side of the first connecting seat 3, a second limiting block 5 is connected to the left side of the second connecting block 4, a second connecting seat 6 is installed on the left side of the second limiting block 5, and an installation hole 15 is opened inside the second connecting seat 6;

[0048] As Figure 1 shown, the shock-absorbing assembly 7 includes a protection block 701 arranged on the outside of the first connecting block 1, a movable telescopic rod 702 is installed on the outside of the protection block 701, a spring body 703 is installed on the outside of the movable telescopic rod 702, a base 9 is arranged on the outside of the spring body 703, a damper 8 is arranged on the inner side of the base 9, a connecting block 10 is arranged on the outside of the base 9, a fixed connecting block 11 is installed on the upper side of the connecting block 10, a connecting bolt 12 is connected to the inner side of the fixed connecting block 11, a top cover 13 is arranged on the inner side of the connecting bolt 12, and an oil rod through hole 14 is opened inside the top cover 13.

[0049] In a specific application scenario, as Figure 3 shown, the first limiting block 2 is symmetrically arranged with respect to the diagonal of the first connecting block 1, and the first limiting block 2 is in a "T" shape.

[0050] In a specific application scenario, as Figure 3As shown, the first limiting block 2 is relatively engaged with the first connecting seat 3, and the first connecting block 1 and the first connecting seat 3 can form a hollow cylindrical structure.

[0051] In a specific application scenario, such as Figure 2 and Figure 3 As shown, the second limiting block 5 is symmetrically arranged about the diagonal of the second connecting block 4, and the second limiting block 5 is relatively engaged with the second connecting seat 6, and the second connecting block 4 and the second connecting seat 6 can form a hollow cylindrical structure.

[0052] In a specific application scenario, such as Figure 1 and Figure 4 As shown, the protective block 701 has an arc-shaped structure, and the protective block 701 is relatively engaged with both the first connecting block 1 and the first connecting seat 3.

[0053] In a specific application scenario, such as Figure 1 and Figure 4 As shown, the movable telescopic rod 702 penetrates through the inside of the spring body 703, and the movable telescopic rod 702 is arranged at equal angles about the center of the base 9.

[0054] In a specific application scenario, such as Figure 4 As shown, the damper 8 is symmetrically arranged left and right about the center of the protective block 701.

[0055] In a specific application scenario, such as Figure 4 As shown, the connecting block 10 is arranged at equal angles about the center of the base 9, and the connecting bolt 12 penetrates through the inside of the connecting block 10.

[0056] In a specific application scenario, such as Figure 1 and Figure 5 As shown, the connecting bolt 12 is relatively threadedly connected to both the connecting block 10 and the fixed block 11.

[0057] Those skilled in the art can understand that the drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the drawings are not necessarily essential for implementing the new model.

[0058] Those skilled in the art can understand that the modules in the shock-absorbing and alignment structure in the implementation scenario can be distributed in the shock-absorbing and alignment structure of the implementation scenario according to the description of the implementation scenario, or can be correspondingly changed and located in one or more shock-absorbing and alignment structures different from this implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0059] The above-disclosed are only the specific implementation scenarios of the new model. However, the new model is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the new model.

Claims

1. A shock-absorbing and centering structure for a nylon centralizer, which includes a first connecting block (1) and a shock-absorbing assembly (7) arranged outside the first connecting block (1), and is characterized in that, A first limiting block (2) is arranged on the right side of the first connecting block (1), a first connecting seat (3) is arranged on the right side of the first limiting block (2), a second connecting block (4) is installed on the upper side of the first connecting seat (3), a second limiting block (5) is connected to the left side of the second connecting block (4), a second connecting seat (6) is installed on the left side of the second limiting block (5), and a placement hole (15) is opened inside the second connecting seat (6); The shock-absorbing assembly (7) includes a protective block (701) arranged outside the first connecting block (1), a movable telescopic rod (702) is installed on the outside of the protective block (701), a spring body (703) is installed on the outside of the movable telescopic rod (702), a base (9) is arranged on the outside of the spring body (703), a damper (8) is arranged inside the base (9), a connecting block (10) is arranged on the outside of the base (9), a fixing block (11) is installed on the upper side of the connecting block (10), a connecting bolt (12) is connected to the inside of the fixing block (11), a top cover (13) is arranged inside the connecting bolt (12), and an oil rod through hole (14) is opened inside the top cover (13).

2. The shock-absorbing and centering structure of a nylon centralizer according to claim 1, wherein The first limiting block (2) is symmetrically arranged about the diagonal of the first connecting block (1), and the first limiting block (2) is in a "T" shape.

3. A shock-absorbing and centering structure of a nylon centralizer according to claim 1, characterized in that, The first limiting block (2) is relatively snap-connected with the first connecting seat (3), and the first connecting block (1) and the first connecting seat (3) can form a hollow cylindrical structure.

4. A shock-absorbing and centering structure of a nylon centralizer as described in claim 1, characterized in that, The second limiting block (5) is symmetrically arranged about the diagonal of the second connecting block (4), the second limiting block (5) is relatively snap-connected with the second connecting seat (6), and the second connecting block (4) and the second connecting seat (6) can form a hollow cylindrical structure.

5. The shock-absorbing and centering structure of a nylon centralizer according to claim 1, characterized in that The protective block (701) is in an arc-shaped structure, and the protective block (701) is relatively snap-connected with both the first connecting block (1) and the first connecting seat (3).

6. The shock-absorbing and centering structure of a nylon centralizer according to claim 1, characterized in that, The movable telescopic rod (702) penetrates through the inside of the spring body (703), and the movable telescopic rod (702) is arranged at equal angles about the center of the base (9).

7. A shock-absorbing and centering structure of a nylon centralizer according to claim 1, characterized in that, The damper (8) is symmetrically arranged about the center of the protective block (701) from left to right.

8. The shock-absorbing and centering structure of a nylon centralizer according to claim 1, characterized in that, The connecting block (10) is arranged at equal angles about the center of the base (9), and the connecting bolt (12) penetrates through the inside of the connecting block (10).

9. The shock-absorbing and centering structure of a nylon centralizer according to claim 8, characterized in that, The connecting bolt (12) is relatively thread-connected with both the connecting block (10) and the fixing block (11).

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