An eccentric wear prevention tool for oil production wells

Abstract

The utility model relates to a kind of anti-eccentric wear tools for oil production well, belong to petroleum exploitation technical field.The anti-eccentric wear tool for oil production well, including the anti-eccentric wear ring for oil production well, adjusting assembly and reset component;The anti-eccentric wear ring quantity is two, several rollers are evenly provided on the outer circumferential surface of anti-eccentric wear ring, and two the anti-eccentric wear ring is connected between by adjusting assembly;The adjusting assembly includes outer thread cylinder, adjusting groove, adjusting block and inner thread cylinder;The outer thread cylinder is fixed between two anti-eccentric wear rings;Adjusting groove is opened on the outer thread cylinder circumferential surface;The adjusting block is slidably arranged in adjusting groove by reset component;The inner thread cylinder is sleeved on outer thread cylinder, and the inner thread cylinder is threadedly connected with outer thread cylinder;The utility model is simple and reasonable in structure, and is ingeniously designed, different size sucker rod can be fixed quickly and conveniently, and the adaptability is stronger, so as to guarantee the anti-eccentric wear effect of sucker rod.

Description

Technical Field

[0001] This utility model relates to the field of petroleum extraction technology, and in particular to an anti-wear tool for oil wells. Background Technology

[0002] Oil wells are artificial channels specifically designed to extract underground oil. They are formed by drilling, running casing, and cementing the well. Then, with the help of perforation or open-hole completion techniques, they create a channel for oil and gas to flow from the formation to the surface. Flowing wells rely on formation pressure to naturally expel crude oil, while mechanically produced wells use pumping or gas injection to assist in oil extraction.

[0003] For example, Chinese utility model patent CN215057190U provides an anti-wear device for sucker rods, including a connecting ring, a rotating groove, a rotating block, a connecting assembly, a rod body, a telescopic mechanism, and a roller mechanism. The rotating groove is opened inside the connecting ring; the rotating block is disposed in the rotating groove, and the rotating block and the connecting ring are rotatably connected; the connecting assembly is fixed on the rotating block, and the connecting assembly includes a connecting seat and a limiting mechanism; the rod body is disposed on the connecting seat; the telescopic mechanism is fixed on the outside of the connecting ring; and the roller mechanism is installed on the telescopic mechanism. This utility model, by setting the connecting ring, rotating groove, and rotating block, can realize relative rotation between the rod bodies, avoiding the rod body from bearing large torque; by setting the connecting assembly, it can realize quick connection of the rod body, preventing the rod body from slipping; and by setting the telescopic rod mechanism and roller mechanism, it can avoid friction between the device and the rod body and the side of the oil well, thus increasing the efficiency of anti-wear of sucker rods and enriching the functions of the overall device.

[0004] During the oil extraction process through oil wells, anti-wear tools are needed to straighten the sucker rods. However, existing anti-wear tools typically fix the position of the sucker rods with connecting bolts, which makes it difficult to quickly and conveniently adapt the anti-wear tools to sucker rods of different sizes, thus affecting the effectiveness of the anti-wear tools. Utility Model Content

[0005] Therefore, it is necessary to provide an anti-wear tool for oil wells to address the problem that existing anti-wear tools are difficult to quickly and conveniently apply to sucker rods of different sizes.

[0006] The system includes an anti-wear ring, an adjustment assembly, and a reset assembly for use in oil wells. Two anti-wear rings are provided, each with several rollers evenly distributed on its outer circumference. The two anti-wear rings are connected by an adjustment assembly. The adjustment assembly includes an external threaded cylinder, an adjustment groove, an adjustment block, and an internal threaded cylinder. The external threaded cylinder is fixed between the two anti-wear rings. An adjustment groove is formed on the circumference of the external threaded cylinder. The adjustment block slides through the adjustment groove via the reset assembly. The internal threaded cylinder is sleeved on the external threaded cylinder, and the two cylinders are threadedly connected.

[0007] In one embodiment, the diameter of the external threaded cylinder is smaller than the diameter of the anti-wear ring.

[0008] In one embodiment, the adjusting block has an arc-shaped structure, and the longitudinal section of the adjusting block is a right-angled trapezoidal structure with a smaller outer diameter and a larger inner diameter.

[0009] In one embodiment, the longitudinal section of the internally threaded cylinder is a right-angled trapezoidal structure with a larger outer diameter and a smaller inner diameter, and the inclined surface of the internally threaded cylinder is in contact with the inclined surface of the adjusting block.

[0010] In one embodiment, the reset assembly includes a reset groove, a reset block, and a reset spring; at least one reset groove is provided in the adjustment groove; the reset block is slidably disposed in the reset groove and fixedly connected to the adjustment block; and both ends of the reset spring are fixedly connected to the inner wall of the reset groove and the reset block, respectively.

[0011] In one embodiment, an abutting component is also included; the abutting component is arranged on the inner circumferential surface of the adjustment block.

[0012] In one embodiment, the abutment assembly includes an abutment groove, a return spring, and an abutment block; a plurality of abutment grooves are evenly formed on the inner circumferential surface of the adjusting block; one end of the return spring is fixedly connected to the inner wall of the abutment groove; the abutment block is slidably inserted into the abutment groove and fixedly connected to the other end of the return spring, and the abutment block is in contact with the circumferential surface of the sucker rod.

[0013] In one embodiment, the abutment block is a hemispherical structure, and the spherical surface of the abutment block contacts the inner wall of the abutment groove. Beneficial effects

[0014] 1. This utility model, by setting an adjustment component and a reset component, first inserts the sucker rod into two anti-wear rings and an external threaded cylinder. Then, the internal threaded cylinder is rotated to connect the internal threaded cylinder with the external threaded cylinder, causing the internal threaded cylinder to move downwards on the external threaded cylinder. This causes the inclined surface of the internal threaded cylinder to press against the inclined surface of the adjustment block, allowing the adjustment block to slide in the adjustment groove. The reset block then slides in the reset groove, causing the reset spring to contract under force until the inner circumferential surface of the adjustment block contacts the circumferential surface of the sucker rod. At this point, the force generated by the contraction of the reset spring makes the threaded connection between the internal and external threaded cylinders more stable and also limits the sliding distance of the adjustment block in the adjustment groove. Compared with the prior art, this utility model has a simple and reasonable structure and ingenious design, which can quickly and conveniently fix sucker rods of different sizes, has strong adaptability, and thus ensures the anti-wear effect of the sucker rod.

[0015] 2. By setting up an abutment component, when the spherical surface of the abutment block contacts the circumferential surface of the sucker rod, the abutment block will slide in the abutment groove, causing the return spring to contract under force. The force generated by the contraction of the return spring can make the position of the sucker rod in the external threaded cylinder more stable. Furthermore, by evenly opening seven abutment grooves on the inner circumferential surface of the adjusting block, the surface roughness of the inner circumferential surface of the adjusting block can be increased, thereby increasing the friction and improving the stability between the inner circumferential surface of the adjusting block and the sucker rod. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a sectional view showing the overall structure of this utility model. Figure 4 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0018] Figure label: 1. Anti-wear ring; 2. Adjustment assembly; 3. Reset assembly; 4. Abutment assembly; 201. External threaded cylinder; 202. Adjustment groove; 203. Adjustment block; 204. Internal threaded cylinder; 301. Reset groove; 302. Reset block; 303. Reset spring; 401. Abutment groove; 402. Return spring; 403. Abutment block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] The following is combined Figures 1-4 This invention describes an anti-wear tool for oil wells.

[0021] In one embodiment, an anti-wear tool for oil wells includes an anti-wear ring 1, an adjustment component 2, and a reset component 3. There are two anti-wear rings 1, with a plurality of rollers evenly arranged on the outer circumference of each ring 1, and the two anti-wear rings 1 are connected by the adjustment component 2. The diameter of the external threaded cylinder 201 is smaller than the diameter of the anti-wear ring 1 to facilitate contact between the rollers and the inner wall of the oil well. The adjusting assembly 2 includes an external threaded cylinder 201, an adjusting groove 202, an adjusting block 203, and an internal threaded cylinder 204. The external threaded cylinder 201 is fixedly welded between two anti-wear rings 1. An adjusting groove 202 is provided on the circumferential surface of the external threaded cylinder 201. The adjusting block 203 is slidably inserted into the adjusting groove 202 through the reset assembly 3. The internal threaded cylinder 204 is sleeved on the external threaded cylinder 201, and the internal threaded cylinder 204 is threadedly connected to the external threaded cylinder 201. The adjusting block 203 has an arc-shaped structure, and its longitudinal section is a right-angled trapezoidal structure with a smaller outer diameter and a larger inner diameter. The longitudinal section of the internal threaded cylinder 204 has a right-angled trapezoidal structure with a larger outer diameter and a smaller inner diameter. The inclined surface of the internal threaded cylinder 204 contacts the inclined surface of the adjusting block 203. The internal threaded cylinder 204 and the adjusting block 203 cooperate with each other to convert the vertical movement of the internal threaded cylinder 204 into the horizontal movement of the adjusting block 203. The reset assembly 3 includes a reset groove 301, a reset block 302, and a reset spring 303; the reset groove 301 is provided in the adjustment groove 202; the reset block 302 is slidably inserted in the reset groove 301 and fixedly connected to the adjustment block 203; the two ends of the reset spring 303 are fixedly connected to the inner wall of the reset groove 301 and the reset block 302, respectively.

[0022] This utility model, by setting an adjusting component 2 and a resetting component 3, first inserts the sucker rod into the two anti-wear rings 1 and the external threaded cylinder 201. Then, it rotates the internal threaded cylinder 204, causing the internal threaded cylinder 204 to be threadedly connected to the external threaded cylinder 201. This causes the internal threaded cylinder 204 to move downwards on the external threaded cylinder 201, causing the inclined surface of the internal threaded cylinder 204 to press against the inclined surface of the adjusting block 203. This causes the adjusting block 203 to slide within the adjusting groove 202, and the resetting block 302 to slide within the resetting groove 301, thus subjecting the resetting spring 303 to [the following conditions]. The force is contracted until the inner circumferential surface of the adjusting block 203 contacts the circumferential surface of the sucker rod. At this time, the force generated by the contraction of the return spring 303 can make the threaded connection between the inner threaded cylinder 204 and the outer threaded cylinder 201 more stable, and can also limit the sliding distance of the adjusting block 203 in the adjusting groove 202. Compared with the prior art, the present invention has a simple and reasonable structure and ingenious design, which can quickly and conveniently fix sucker rods of different sizes, and has strong adaptability, thereby ensuring the anti-wear effect of the sucker rod.

[0023] As a preferred embodiment, it also includes an abutment component 4; the abutment component 4 is arranged on the inner circumferential surface of the adjusting block 203; the abutment component 4 includes an abutment groove 401, a return spring 402 and an abutment block 403; seven abutment grooves 401 are evenly provided on the inner circumferential surface of the adjusting block 203; one end of the return spring 402 is fixedly connected to the inner wall of the abutment groove 401; the abutment block 403 slides through the abutment groove 401 and is fixedly connected to the other end of the return spring 402, and the abutment block 403 contacts the circumferential surface of the sucker rod; the abutment block 403 has a hemispherical structure, and the spherical surface of the abutment block 403 contacts the inner wall of the abutment groove 401 to prevent the abutment block 403 from moving out of the abutment groove 401; when the return spring 303 is contracted to its maximum extent, the inclined surface of the internal threaded cylinder 204 is still in contact with the inclined surface of the adjusting block 203.

[0024] This invention, by setting up an abutment component 4, allows the abutment block 403 to slide within the abutment groove 401 when its spherical surface contacts the circumferential surface of the sucker rod. This causes the return spring 402 to contract under pressure. The force generated by the contraction of the return spring 402 makes the position of the sucker rod within the external threaded cylinder 201 more stable. Furthermore, by evenly opening seven abutment grooves 401 on the inner circumferential surface of the adjusting block 203, the surface roughness of the inner circumferential surface of the adjusting block 203 is increased, thereby improving the friction and thus enhancing the stability between the inner circumferential surface of the adjusting block 203 and the sucker rod.

[0025] Working principle: In use, first, insert the sucker rod into the two anti-wear rings 1 and the external threaded cylinder 201. Then, rotate the internal threaded cylinder 204 to connect it to the external threaded cylinder 201. This causes the internal threaded cylinder 204 to move downwards on the external threaded cylinder 201, pressing the inclined surface of the internal threaded cylinder 204 against the inclined surface of the adjusting block 203. This causes the adjusting block 203 to slide in the adjusting groove 202, which in turn causes the reset block 302 to slide in the reset groove 301. This causes the reset spring 303 to contract under force until... When the spherical surface of the abutment block 403 contacts the circumferential surface of the sucker rod, the abutment block 403 will slide in the abutment groove 401, causing the return spring 402 to contract under force until the inner circumferential surface of the adjusting block 203 contacts the circumferential surface of the sucker rod. At this time, the force generated by the contraction of the return spring 303 can make the threaded connection between the inner threaded cylinder 204 and the outer threaded cylinder 201 more stable. Furthermore, the force generated by the contraction of the return spring 402 can make the position of the sucker rod in the outer threaded cylinder 201 more stable.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tool for preventing uneven wear in oil wells, characterized in that, The system includes an anti-wear ring (1), an adjustment assembly (2), and a reset assembly (3) for use in oil wells. There are two anti-wear rings (1), and several rollers are evenly arranged on the outer circumference of each anti-wear ring (1). The two anti-wear rings (1) are connected by the adjustment assembly (2). The adjustment assembly (2) includes an external threaded cylinder (201), an adjustment groove (202), an adjustment block (203), and an internal threaded cylinder (204). The external threaded cylinder (201) is fixed between the two anti-wear rings (1). The adjustment groove (202) is provided on the circumference of the external threaded cylinder (201). The adjustment block (203) is slidably inserted into the adjustment groove (202) through the reset assembly (3). The internal threaded cylinder (204) is sleeved on the external threaded cylinder (201), and the internal threaded cylinder (204) is threadedly connected to the external threaded cylinder (201).

2. The anti-wear tool for oil wells according to claim 1, characterized in that, The diameter of the external threaded cylinder (201) is smaller than the diameter of the anti-wear ring (1).

3. The anti-wear tool for oil wells according to claim 1, characterized in that, The adjusting block (203) has an arc-shaped structure, and the longitudinal section of the adjusting block (203) is a right-angled trapezoidal structure with a smaller outer diameter and a larger inner diameter.

4. The anti-wear tool for oil wells according to claim 3, characterized in that, The longitudinal section of the internal threaded cylinder (204) is a right-angled trapezoidal structure with a larger outer diameter and a smaller inner diameter, and the inclined surface of the internal threaded cylinder (204) is in contact with the inclined surface of the adjusting block (203).

5. The anti-wear tool for oil wells according to claim 4, characterized in that, The reset assembly (3) includes a reset groove (301), a reset block (302), and a reset spring (303); at least one reset groove (301) is provided in the adjustment groove (202); the reset block (302) slides through the reset groove (301) and is fixedly connected to the adjustment block (203); the two ends of the reset spring (303) are fixedly connected to the inner wall of the reset groove (301) and the reset block (302) respectively.

6. The anti-wear tool for oil wells according to claim 5, characterized in that, It also includes a contact component (4); the contact component (4) is arranged on the inner circumferential surface of the adjustment block (203).

7. The anti-wear tool for oil wells according to claim 6, characterized in that, The abutment assembly (4) includes an abutment groove (401), a return spring (402), and an abutment block (403); a plurality of abutment grooves (401) are evenly provided on the inner circumferential surface of the adjusting block (203); one end of the return spring (402) is fixedly connected to the inner wall of the abutment groove (401); the abutment block (403) slides through the abutment groove (401) and is fixedly connected to the other end of the return spring (402), and the abutment block (403) contacts the circumferential surface of the sucker rod.

8. The anti-wear tool for oil wells according to claim 7, characterized in that, The contact block (403) has a hemispherical structure, and the spherical surface of the contact block (403) contacts the inner wall of the contact groove (401).

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