A sucker rod centralizer with correction function

Abstract

This utility model discloses a sucker rod centralizer with a correction function, including a sucker rod body. The sucker rod body is wrapped with a centralizer shell. The centralizer shell is connected to a ring sleeve via multiple elastic calibration posts. The ring sleeve is installed below two semi-circular limiting correction ring hoops. The two semi-circular limiting correction ring hoops are fixed by side locking buckles. This sucker rod centralizer with a correction function is not only easy to install and reliable, but also can perform real-time position correction of the sucker rod centralizer during normal operation, ensuring that the position of the sucker rod centralizer is not messy or stacked, and ensuring the uniformity of the overall distribution of the sucker rod centralizer position, thereby ensuring the anti-wear performance of the sucker rod.

Description

Technical Field

[0001] This utility model relates to the field of oil pumping units, specifically to a sucker rod straightener with a correction function. Background Technology

[0002] Sucker rod centralizers are suitable for oil wells with uneven wear, especially for wells and directional wells where wear occurs above the sucker rod neutral point. Below the neutral point, they work in conjunction with the nylon centralizer on the sucker rod body for even better anti-wear performance. The sucker rod is an essential component of an oil well; it has a slender overall structure, connecting the polished rod at the top and the oil pump at the bottom, primarily serving to transmit power.

[0003] A sucker rod centralizer is a component installed on the outside of the sucker rod to prevent uneven wear in oil wells. When the sucker rod moves up and down inside the tubing, its elastic deformation can cause friction between the rod and the tubing wall, leading to potential breakage. The sucker rod centralizer's flexibility reduces friction between the rod and tubing, thus preventing uneven wear. By reducing friction and uneven wear, the sucker rod centralizer can extend the service life of the pumping unit and improve oil production efficiency. Furthermore, by reducing the number of well workover operations and maintenance costs, the sucker rod centralizer saves on well workover expenses and improves economic efficiency. Currently, there are many types of sucker rods on the market. Besides sharing the common feature of preventing uneven wear, they also vary depending on different working conditions and needs. For example, Chinese patent application number CN202411448755.8 describes a sucker rod centralizer, including a centralizing sleeve, a short section, a compensating sleeve, and an elastic sleeve. Two sets of compensating sleeves have connecting rods integrally formed at their top and bottom, and one end of each connecting rod has an integrally formed rack. This patent represents a common sucker rod centralizer device. However, it also suffers from a common drawback of existing sucker rod centralizers: the lack of self-correction function. The centralizer slides up and down on the sucker rod, causing it to be unevenly distributed and affecting the sucker rod's anti-wear performance. Summary of the Invention

[0004] The purpose of this invention is to provide a sucker rod centralizer with a correction function, in order to solve the problem mentioned in the background art that the existing sucker rod centralizers do not have a self-correction function, and the sucker rod centralizer will slide up and down on the sucker rod, resulting in the centralizer on the sucker rod not being evenly distributed on the sucker rod, thus affecting the anti-wear performance of the sucker rod.

[0005] The technical solution of this utility model is implemented as follows: a sucker rod centralizer with a correction function includes a sucker rod body, the sucker rod body is wrapped with a centralizer housing, the centralizer housing is connected to a ring sleeve above by multiple elastic calibration columns, the ring sleeve is installed below two semi-circular limiting correction ring hoops, and the two semi-circular limiting correction ring hoops are fixed by side fixing lock buckles.

[0006] Preferably, the ring sleeve has a trapezoidal internal thread inside, and the ring sleeve is detachably screwed together with the limiting and correcting ring hoop housing through the trapezoidal internal thread.

[0007] Preferably, the limiting and correcting ring includes a ring body, and a heat insulation sheet is provided on the other side of the ring body. The heat insulation sheet is connected to the anti-slip layer through an adhesive layer, and the anti-slip layer abuts against the surface of the sucker rod body.

[0008] Preferably, the bottom of the ring is provided with multiple solder pads, which are fixedly welded together with the elastic calibration column.

[0009] Preferably, an elastic abutment is provided between the ring body and the heat insulation sheet, and the elastic abutment is made of rubber material.

[0010] The beneficial effects of this utility model by adopting the above technical solution are as follows: This type of sucker rod centralizer with correction function is not only easy to install and reliable, but also can perform real-time position correction processing on the sucker rod centralizer during normal operation, ensuring that the position of the sucker rod centralizer is not messy or stacked, and ensuring the uniformity of the overall distribution of the position of the sucker rod centralizer, thereby ensuring the anti-wear performance of the sucker rod. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is the front view of the present invention.

[0013] Figure 2 This is a partial sectional view of the present invention.

[0014] Figure 3 for Figure 2 A magnified view of area A.

[0015] Figure 4 for Figure 1 An enlarged bottom view.

[0016] The components include: 1. Sucker rod body; 2. Centralizer housing; 3. Limiting and correcting ring; 4. Fixing and locking buckle; 5. Elastic calibration column; 6. Ring sleeve; 301. Ring body; 302. Elastic contact pad; 303. Heat insulation sheet; 304. Adhesive layer; 305. Anti-slip layer; 601. Trapezoidal internal thread; 602. Welding pad. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figure 1 and Figure 2 A sucker rod centralizer with a correction function includes a sucker rod body 1, a centralizer housing 2 wrapped around the sucker rod body 1, and a ring sleeve 6 connected to the top of the centralizer housing 2 by multiple elastic calibration posts 5. The ring sleeve 6 is installed below two semi-circular limiting correction rings 3, and the two semi-circular limiting correction rings 3 are fixed by side fixing lock buckles 4.

[0019] See Figure 2 and Figure 4 The ring sleeve 6 has a trapezoidal internal thread 601 inside. The ring sleeve 6 is detachably screwed to the outer shell of the limiting and correcting ring 3 through the trapezoidal internal thread 601. This arrangement makes it easy to install the ring sleeve 6 below the two semi-circular limiting and correcting rings 3 by using the threaded connection, which facilitates the installation and positioning of this device.

[0020] See Figure 3 The limiting and correcting ring 3 includes a ring body 301. A heat insulation plate 303 is provided on the other side of the ring body 301. The heat insulation plate 303 is connected to the anti-slip layer 305 through an adhesive layer 304. The anti-slip layer 305 abuts against the surface of the sucker rod body 1. This arrangement can increase the friction between the limiting and correcting ring 3 and the sucker rod body 1 through the anti-slip layer 305, thereby ensuring the stability of the position of the limiting and correcting ring 3. The heat insulation plate 303 can isolate heat and prevent the heat generated by the friction between the limiting and correcting ring 3 and the sucker rod body 1 from damaging the ring body 301, thereby improving the overall service life of the limiting and correcting ring 3.

[0021] See Figure 4The bottom of the ring 6 is provided with multiple solder pads 602, which are fixedly welded together with the elastic calibration column 5. This arrangement can ensure the stability of the structural strength of the ring 6 and the elastic calibration column 5 and prevent the elastic calibration column 5 from falling off.

[0022] See Figure 3 An elastic abutment pad 302 is provided between the ring body 301 and the heat insulation sheet 303. The elastic abutment pad 302 is made of rubber material. This arrangement makes it easy to use the elastic abutment pad 302 to provide elastic compression to the anti-slip layer 305, thereby increasing the friction between the anti-slip layer 305 and the sucker rod body 1 and preventing the limiting correction ring 3 from sliding on the sucker rod body 1.

[0023] Working principle: When using this device, firstly, the two limiting and correcting rings 3 are fixedly installed on the outside of the sucker rod body 1 using the fixing locking buckle 4, thereby fixing the limiting and correcting rings 3 at a specific position on the sucker rod body 1. Then, the ring sleeve 6 and the centralizer housing 2 are screwed from the end of the sucker rod body 1 onto the outside of the sucker rod body 1 and below the limiting and correcting rings 3, thereby fixing the ring sleeve 6 and the limiting and correcting rings 3 together. Through the elastic action of the elastic calibration column 5, it can provide elastic correction function for the centralizer housing 2, and also ensure that the centralizer housing 2 has a certain degree of flexibility, thus moving with the sucker rod and ensuring the uniformity of the overall distribution of the sucker rod centralizer position, thereby ensuring the anti-wear performance of the sucker rod.

[0024] In this specification, the terms "connection," "installation," "fixing," and "setting" are interpreted broadly. For example, "connection" can mean a fixed connection or an indirect connection via an intermediate component without affecting the relationship between components and the technical effect. It can also mean an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this utility model or utility model according to the specific circumstances. In this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this utility model and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation or to be constructed and operated in a specific orientation. Finally, it should be noted that when describing the position of each component and the matching relationship between them, this utility model usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions and matching relationships also apply to other components / other pairs of components.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sucker rod centralizer with a correction function, characterized in that: Includes a sucker rod body (1), the sucker rod body (1) is wrapped with a centralizer housing (2), the centralizer housing (2) is connected to a ring sleeve (6) above by multiple elastic calibration columns (5), the ring sleeve (6) is installed below two semi-circular limiting correction rings (3), the two semi-circular limiting correction rings (3) are fixed by side fixing lock buckles (4).

2. The sucker rod centralizer with correction function according to claim 1, characterized in that: The ring sleeve (6) has a trapezoidal internal thread (601) inside, and the ring sleeve (6) is detachably screwed together with the outer shell of the limiting and correcting ring hoop (3) through the trapezoidal internal thread (601).

3. A sucker rod centralizer with a correction function according to claim 1, characterized in that: The limiting correction ring (3) includes a ring body (301), and a heat insulation sheet (303) is provided on the other side of the ring body (301). The heat insulation sheet (303) is connected to the anti-slip layer (305) through an adhesive layer (304), and the anti-slip layer (305) abuts against the surface of the sucker rod body (1).

4. A sucker rod centralizer with a correction function according to claim 1, characterized in that: The bottom of the ring (6) is provided with multiple solder pads (602), and the solder pads (602) are fixedly welded together with the elastic calibration column (5).

5. A sucker rod centralizer with a correction function according to claim 3, characterized in that: An elastic abutment pad (302) is provided between the ring body (301) and the heat insulation sheet (303), and the elastic abutment pad (302) is made of rubber material.

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