Sucker rod umbrella-shaped full protector and sucker rod assembly

Abstract

The utility model provides an umbrella-shaped full protector for a sucker rod, which comprises at least two groups of basic components, each group of basic components comprises a locking column and at least one arc component, each arc component comprises a connecting piece and an arc-shaped plate, and the outer side of the locking column is connected with the inner side of the arc-shaped plate through the connecting piece; each group of basic components is of an independent structure, or a plurality of groups of basic components are of an integral structure. The pipe rod eccentric wear tool has the advantages that the problems that a pipe rod eccentric wear tool in the prior art cannot transport scraped wax, wax accumulation is caused, the rod is broken, stress amplitude is increased, stroke loss is increased, the oil well overhaul period is shortened, and cost cannot be reduced are solved, the pipe rod eccentric wear tool can achieve pipe rod eccentric wear prevention, meanwhile, the scraped wax can be transported out, and the service life of the pipe rod is prolonged. Therefore, rod breakage, stress amplitude increase, stroke loss increase and oil well overhaul period shortening are avoided, and cost reduction is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of petroleum, in particular to an umbrella-shaped full protector for a sucker rod. Background Art

[0002] In the oil field, pumping well production processes not only face eccentric wear of the tubing and rods, but also the continuous accumulation of wax in the oil. To address these issues, a variety of tools are currently available that both prevent eccentric wear and scrape away wax. These tools are categorized into two types: external and internal toothed tools: 1. Tools with straight and helical teeth, such as sucker rod centralizers; 2. Internally toothed tools, such as full guards.

[0003] Neither of these tools solves the problem of removing the scraped wax, resulting in continuous wax deposition on the tubing's inner walls and the exterior of the anti-eccentric wear tools, gradually reducing the oil flow path. Above the waxing point, excessive resistance causes the upper rod to bend during downward movement, shifting the location of eccentric wear and complicating the development of future anti-eccentric wear measures. This also increases resistance to rod movement, accelerating rod fatigue and shortening its lifespan. Wax jams can also directly lead to rod breakage. When operating below the waxing point, tubing pressure rises dramatically, increasing creep, accelerating tubing fatigue, and increasing leakage.

[0004] The current economical method for cleaning oil pipes after they are pulled from the well is to boil off the oil and wax adhering to the pipe walls at the pipe plant. However, this method does not completely clean the inner wall of the pipe. Incompletely cleaned pipes can cause resistance to wear prevention tools when lowered into the well. Furthermore, the newly generated wax after pumping operations reduces the flow path area, rapidly increasing resistance to movement, which in turn increases stress amplitude and fatigue.

[0005] In summary, the above two types of tools for preventing uneven wear of pipes and rods in the prior art do not solve the problem of how to transport the scraped wax, resulting in problems such as wax accumulation leading to rod breakage, increased stress amplitude, increased stroke loss, shortened oil well maintenance cycle, and inability to reduce costs. Summary of the Invention

[0006] In view of this, the utility model aims to propose an umbrella-shaped sucker rod protector to solve the problems of the prior art pipe and rod eccentric wear tools that cannot transport the scraped wax, causing wax accumulation, leading to rod breakage, increased stress amplitude, increased stroke loss, shortened oil well maintenance cycle, and inability to reduce costs. The utility model can realize the prevention of pipe and rod eccentric wear while facilitating the transportation of the scraped wax, thereby avoiding rod breakage, avoiding increased stress amplitude, avoiding increased stroke loss, avoiding shortening of oil well maintenance cycle, and helping to reduce costs.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0008] A sucker rod umbrella-shaped full protector comprises at least two sets of basic components, each set of the basic components comprising a locking column and at least one arc component, the arc component comprising a connecting piece and an arc-shaped plate, the outer side of the locking column being connected to the inner side of the arc-shaped plate via the connecting piece;

[0009] Each group of basic components is an independent structure, or multiple groups of basic components form an overall structure.

[0010] Furthermore, when the arc-shaped plate is placed vertically, its projection on the horizontal plane is an arc.

[0011] Furthermore, the connecting member is a long strip of rib plate, the first long side of the rib plate is connected to the locking column along the axial direction of the locking column, and the second long side of the rib plate is connected to the central axis of the arc-shaped plate; it can improve the balance stability of the umbrella-shaped full protector structure.

[0012] The cross section of the arc component is T-shaped or umbrella-shaped.

[0013] Furthermore, it comprises two sets of coaxially placed basic components, each set of the basic components comprising a locking column and an arc component; the arc of the arc component is greater than or equal to a semicircle, and the two arc components are staggered 180 degrees. When the full protector is placed vertically, the arc-shaped plates of the two arc components are projected on the horizontal plane as a complete circle;

[0014] Alternatively, it includes two groups of coaxially placed basic components, each group of which includes a locking column and two symmetrically arranged arc components. There are a total of four arc components in the two groups of basic components, which are staggered at 90°, which is conducive to ensuring the balance and stability of the overall structure of the umbrella-shaped full protector. The curvature of the arc component is ≥ 1 / 4 circle and ≤ 1 / 2 circle. When the full protector is placed vertically, the projection of the arc-shaped plates of the four arc components on the horizontal plane is a complete circular ring.

[0015] The two arc components of the upper base assembly scrape off two symmetrical sections of wax adhering to the inner wall of the tubing; the two arc components of the lower base assembly scrape off the remaining two symmetrical sections of wax adhering to the inner wall of the tubing. This improves the effectiveness and efficiency of wax scraping, facilitating the removal of wax deposited on the full protector and allowing the expelled wax to be carried out of the tubing by the fluid flow. A gap is provided between adjacent arc components to facilitate the passage of excess wax into the gap.

[0016] Furthermore, both ends of the arc-shaped plate are provided with inner chamfers, both ends of the locking column are provided with outer chamfers, and both ends of the rib plate are provided with outer chamfers.

[0017] Furthermore, the inner chamfers at both ends of the arc-shaped plate are 45°, and the edges are acute, forming a wedge-shaped trumpet-shaped shape, which is more conducive to scraping off the wax deposited on the inner wall. The two ends of the locking column are provided with a 45° outer chamfer, and the outer chamfer length of the rib plate is 30-150mm, forming a transition zone. The angle between the outer chamfer of the rib plate and the locking column is 135°, which is used to strengthen the connection between the arc-shaped plate 3 and the locking column 1.

[0018] Furthermore, the sucker rod umbrella-shaped full protector is integrally injection-molded from nylon material, which can improve the overall performance of the umbrella-shaped full protector.

[0019] Furthermore, the cross-sectional area of ​​each set of foundation components must be ≤ the cross-sectional area of ​​the same-level sucker rod coupling. Therefore, even with a full protector installed, the sucker rod's vertical motion will not increase resistance, the wear zone will not shift, and the rod will not break near the full protector. If this requirement is not met, the thickness of the curved plate can be reduced to resolve the issue.

[0020] The inner diameter of the arc-shaped plate is smaller than the outer diameter of the sucker rod coupling of the same level, and the outer diameter of the arc-shaped plate is smaller than the inner diameter of the oil pipe;

[0021] The arc-shaped plate and the inner wall of the oil pipe produce contact wear, first wearing away the wearable volume on the outer side of the arc-shaped plate. When only 1mm is left, the coupling is worn away. At this time, the parts must be replaced in time. The wearable volume of the umbrella-shaped full protector is larger.

[0022] When the inner diameter of the oil pipe is 62 mm, the outer diameter of the arc-shaped plate is 56-59 mm.

[0023] Furthermore, the inner diameter of the arc-shaped plate is 1 mm smaller than the outer diameter of the sucker rod coupling of the same level;

[0024] The outer diameter of the arc-shaped plate is 3-6 mm smaller than the inner diameter of the oil pipe;

[0025] When the inner diameter of the oil pipe is 62 mm, the outer diameter of the arc-shaped plate is 58 mm.

[0026] Furthermore, the thickness of the rib plate is 6 mm, the length of the arc-shaped plate is 220 mm, the thickness of the locking column is 3-9 mm and the length is 500 mm;

[0027] Matching When coupling, the inner diameter of the arc plate is to The outer diameter is

[0028] Matching When coupling, the inner diameter of the arc plate is to The outer diameter is

[0029] Matching When the coupling is to 50.8mm, outer diameter

[0030] Matching When the coupling is to 55.6mm, outer diameter

[0031] A sucker rod assembly, comprising the sucker rod umbrella-shaped full protector and a sucker rod, wherein the sucker rod umbrella-shaped full protector is sleeved on the outer periphery of the sucker rod;

[0032] Alternatively, the sucker rod umbrella-shaped full protector is sleeved on a short joint, and the short joint can be connected to the sucker rod; the short joint is suitable for oil wells with severe eccentric wear in a certain section of the oil well. When the eccentric wear in a certain section of the oil well is abnormally severe, the number of full protectors needs to be increased, but the sucker rods in this section cannot be increased, and frequent replacement of sucker rods is both inconvenient and costly. In this case, a short joint equipped with a full protector can be connected to this section of the well.

[0033] The sucker rod includes a rod body and a coupling located at one end of the rod body. A wrench square is provided below the coupling. The distance between the maximum point of the wrench square of the umbrella-shaped full protector and the sucker rod is more than 15 cm, forming an elevator clamping section. This makes it convenient for the elevator to clamp. The elevator can be used to easily clamp the sucker rod, so that the sucker rod installed with the umbrella-shaped full protector can be placed at the pipe opening at the top of the oil pipe; it is also convenient to screw another sucker rod to it when the elevator clamps one sucker rod to achieve lengthening.

[0034] The advantages and positive effects of the utility model are: solving the problems of the prior art pipe rod eccentric wear tool that cannot transport out the scraped wax, causing wax accumulation, leading to rod breakage, increased stress amplitude, increased stroke loss, shortened oil well maintenance cycle, and inability to reduce costs. The utility model can realize the prevention of pipe rod eccentric wear while facilitating the transportation of the scraped wax, thereby avoiding rod breakage, avoiding increased stress amplitude, avoiding increased stroke loss, avoiding shortened oil well maintenance cycle, and helping to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1is the whole structure schematic view of the sucker rod assembly in embodiment 1 of the utility model;

[0037] Figure 2 is the bottom view of embodiment 1 of the utility model;

[0038] Figure 3 is Figure 1 A-A section view of.

[0039] Figure 4 is the eccentric wear schematic view of the full protector in embodiment 1 of the utility model.

[0040] In the figure,

[0041] 1, locking column 2, sucker rod 3, arc plate 4, rib plate

[0042] 5, arc plate inner chamfer 6, oil pipe 7, locking column outer chamfer 8, coupling

[0043] 9, rib plate transition zone 10, wrench square 11, elevator clamping section DETAILED DESCRIPTION

[0044] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model, and the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description, and the person skilled in the art can make similar generalization without violating the connotation of the utility model, therefore, the utility model is not limited by the specific embodiments disclosed below.

[0046] Secondly, the utility model is described in detail in combination with the schematic view, when the embodiments of the utility model are described in detail, for the convenience of description, the section view of the device structure will be partially enlarged without general proportion, and the schematic view is only an example, which should not limit the protection scope of the utility model here. In addition, three-dimensional space dimensions of length, width and height should be contained in actual manufacture.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0048] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0049] Example 1:

[0050] like Figures 1 to 3 As shown, the utility model is an umbrella-shaped full protector for sucker rods, comprising two sets of coaxially placed basic components, each of which is an integral structure. Each set of basic components comprises a locking column 1 and two symmetrically arranged arc components, each of which comprises a connecting piece and an arc-shaped plate 3.

[0051] The connecting member is a long strip of rib plate 4, the first long side of which is connected to the outer side of the locking column 1 along the axial direction of the locking column 1, and the second long side of the rib plate 4 is connected to the central axis of the inner side of the arc-shaped plate 3; this connection method can improve the balance and stability of the umbrella-shaped full protector structure.

[0052] The cross section of the arc component is T-shaped or umbrella-shaped.

[0053] There are a total of four arc components 3 of the two groups of basic components. They are staggered at 90°, which is conducive to ensuring the balance and stability of the overall structure of the umbrella-shaped full protector. The arc of the arc component is 1 / 4 circle. When the full protector is placed vertically, the projection of the arc-shaped plates 3 of the four arc components on the horizontal plane is a complete circle.

[0054] The two curved plates 3 of the upper base assembly scrape off two symmetrical portions of wax adhering to the inner wall of the oil pipe 6; the two curved plates 3 of the lower base assembly scrape off the remaining two symmetrical portions of wax adhering to the inner wall of the oil pipe 6. This improves the effectiveness and efficiency of wax scraping, facilitating the removal of wax deposited on the full protector and allowing the expelled wax to be carried out of the oil pipe 6 by the fluid flow. A gap is provided between adjacent curved plates to facilitate the passage of excess wax scraped into the gap.

[0055] The inner chamfer 5 of the arc-shaped plate at both ends of the arc-shaped plate 3 is 45°, and the edge is acute, forming a wedge-shaped trumpet-shaped shape, which is more conducive to scraping off the wax deposited on the inner wall of the oil pipe 6. The two ends of the locking column 1 are provided with a 45° locking column outer chamfer 7, and the outer chamfer length of the rib plate 4 is 30-150mm, forming a rib plate transition zone 9. The angle between the rib plate outer chamfer 7 and the locking column 1 is 135°, which is used to strengthen the connection between the arc-shaped plate 3 and the locking column 1.

[0056] The sucker rod umbrella-shaped full protector is integrally injection-molded with nylon material, which can improve the overall performance of the umbrella-shaped full protector.

[0057] The cross-sectional area of ​​each set of basic components must be less than or equal to the cross-sectional area of ​​the sucker rod coupling of the same level. Therefore, even if a full protector is installed, the sucker rod will not increase its movement resistance during its up and down movement, the eccentric wear position will not shift, and the rod will not break near the full protector. It can reduce the resistance of the umbrella-shaped full protector during anti-eccentric wear and wax scraping when it descends in the oil pipe, prevent the umbrella-shaped full protector from clogging and getting stuck in the oil pipe, and improve its working efficiency. If the requirements are not met, the problem can be solved by reducing the thickness of the arc plate;

[0058] The inner diameter of the arc-shaped plate is 1mm smaller than the outer diameter of the same-grade sucker rod coupling. The arc-shaped plate and the inner wall of the oil pipe produce contact wear, which first wears away the wearable volume on the outer side of the arc-shaped plate. When only 1mm is left, the coupling is worn. At this time, the parts must be replaced in time. The umbrella-shaped full protector has a larger wearable volume.

[0059] The outer diameter of the arc-shaped plate is 3-6 mm smaller than the inner diameter of the oil pipe;

[0060] When the inner diameter of the oil pipe is 62 mm, the outer diameter of the arc-shaped plate is 56-59 mm, preferably 58 mm.

[0061] The thickness of the rib plate is 6mm, the length of the arc-shaped plate is 220mm, the thickness of the locking column is 3-9mm and the length is 500mm;

[0062] Matching When coupling, the inner diameter of the arc plate is to The outer diameter is

[0063] Matching When coupling, the inner diameter of the arc plate is to The outer diameter is

[0064] Matching When the coupling is to 50.8mm, outer diameter

[0065] Matching When the coupling is to 55.6mm, outer diameter

[0066] The above-mentioned sucker rod umbrella-shaped full protector and the sucker rod 2 can form a sucker rod assembly. The sucker rod umbrella-shaped full protector is made of nylon material and is injection-molded as a whole, and is directly sleeved on the outer periphery of the sucker rod 2; it can be easily processed and manufactured, and ensures the overall strength and other performance of the umbrella-shaped full protector; it is conducive to the eccentric wear between the arc-shaped plate 3 made of nylon and the inner wall of the oil pipe 6, thereby avoiding damage to the sucker rod.

[0067] Alternatively, the sucker rod umbrella-shaped full protector is sleeved on a short joint, and the short joint can be connected to the sucker rod 2; the short joint is suitable for oil wells with severe eccentric wear in a certain section of the well. When the eccentric wear in a certain section of the oil well is abnormally severe, the number of full protectors needs to be increased, but the sucker rods in this section cannot be increased, and frequent replacement of sucker rods is both inconvenient and costly. In this case, a short joint equipped with a full protector can be connected to this section of the well.

[0068] The sucker rod 2 includes a rod body and a coupling 8 at one end of the rod body (to facilitate the connection of two adjacent sucker rods to achieve lengthening of the sucker rod, which is convenient for use in longer oil pipes). A wrench square 10 is provided below the coupling 8. The distance between the maximum point of the wrench square 10 of the umbrella-shaped full protector and the sucker rod is more than 15 cm, forming an elevator clamping section 11, which can facilitate the clamping of the elevator. The elevator can be used to easily clamp the sucker rod, so that the sucker rod installed with the umbrella-shaped full protector can be placed at the pipe mouth at the top of the oil pipe; it is also convenient to screw another sucker rod to it when the elevator clamps one sucker rod to achieve lengthening.

[0069] Example 2:

[0070] Compared with Example 1, each group of basic components in this embodiment includes a locking column and an arc component; the arc of the arc component is semicircular, and the two arc components are staggered 180°. When the full protector is placed vertically, the projection of the arc-shaped plates of the two arc components on the horizontal plane is a complete circular ring.

[0071] In the above two embodiments, the outer diameter of the arc-shaped plate 3 is smaller than the inner diameter of the oil pipe 6, which is conducive to the eccentric wear between the arc-shaped plate 3 and the inner wall of the oil pipe 6, thereby protecting the sucker rod 2 from eccentric wear between the oil pipe 6. Figure 4 As shown, Figure 4 The middle dotted line portion represents the arc-shaped plate 3 that has been partially worn away by the inner wall of the oil pipe 6. The outer side of the arc-shaped plate 3 has been partially worn away by the inner wall of the oil pipe 6, and its wall thickness is reduced at this time.

[0072] When using the utility model, the umbrella-shaped full protector is placed in the oil pipe 6, and it moves up or down with the sucker rod 2. The arc-shaped plates 3 distributed above and below will scrape off the wax attached to the inner wall of the oil pipe 6, so that the wax deposited on the inner wall of the oil pipe 6 can be scraped off at any time. At the same time, the wax deposited on the umbrella-shaped full protector is squeezed out or rubbed off, and the fallen wax is carried out of the oil pipe 6 by the liquid flow, so that the flow channel of the oil pipe 6 is cleaned in time. Since the arc-shaped plate 3 of the arc component is projected as a complete circular ring in the horizontal plane, it can help to ensure that the sucker rod is fully and effectively protected from uneven wear and the inner wall of the oil pipe is scraped off wax, so that the flow area of ​​the oil pipe 6 remains constant. The scraped-off excess wax can enter between the arc-shaped plates, thereby turning the hard-to-scrape dead wax attached to the inner wall of the oil pipe into easy-to-scrape live wax, preventing the dead wax from clogging other umbrella-shaped full protectors in the oil pipe 6; thereby solving the problem of the prior art pipe and rod eccentric wear tools that cannot transport out the scraped wax, causing wax accumulation, leading to rod breakage, increased stress amplitude, increased stroke loss, shortened oil well maintenance cycle, and inability to reduce costs. The tool can simultaneously prevent the eccentric wear of the pipe and rod and facilitate the transportation of the scraped wax, thereby avoiding rod breakage, increased stress amplitude, increased stroke loss, shortened oil well maintenance cycle, and helping to reduce costs.

[0073] As the sucker rod moves up and down, the arc-shaped plate will be subjected to lateral force and change radially (the diameter will change). At the same time, the two ends of the arc component are open and not closed, so the wax deposited on the wall of the oil pipe can be scraped off at any time. At the same time, the wax deposited on the full protector body or precipitated can be rubbed off and squeezed out, and carried out of the oil pipe by the liquid flow, so that the wax can be transported out without being blocked, the flow channel can be cleaned in time, and the flow area remains constant.

[0074] The patent application publication number CN 108643848 A discloses eye-shaped full protectors, cylinder-shaped full protectors, and fan-shaped full protectors. These three types of full protectors all have a fatal flaw: a closed cavity is formed between their arc surface and the locking column. When the scraped wax falls into the cavity, it will be deposited on the inner wall of the cavity, accumulating thicker and thicker until it becomes blocked, seriously affecting the oil extraction efficiency.

[0075] Compared with other full protectors, the utility model has a simple structure. Under the condition of the same cross-sectional area, the available wear volume is increased and the service time is prolonged; under the condition of the same available wear volume, the cross-sectional area is reduced and the movement resistance is reduced.

[0076] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A sucker rod umbrella-shaped full protector, characterized by: The invention comprises at least two groups of basic components, each group of basic components comprises a locking column and at least one arc component, the arc component comprises a connecting piece and an arc-shaped plate, and the outer side of the locking column is connected to the inner side of the arc-shaped plate through the connecting piece; Each group of basic components is an independent structure, or multiple groups of basic components form an overall structure.

2. The sucker rod umbrella-shaped full protector according to claim 1, characterized in that: When the arc-shaped plate is placed vertically, its projection on the horizontal plane is an arc.

3. The umbrella-shaped sucker rod protector according to claim 1 or 2, characterized in that: The connecting member is a long strip of ribbed plate, the first long side of the ribbed plate is connected to the locking post along the axial direction of the locking post, and the second long side of the ribbed plate is connected to the central axis of the arc-shaped plate; The cross section of the arc component is T-shaped or umbrella-shaped.

4. The sucker rod umbrella-shaped full protector according to claim 1, characterized in that: The invention comprises two sets of coaxially placed basic components, each set of which includes a locking column and an arc component; the arc of the arc component is greater than or equal to a semicircle, and the two arc components are staggered 180 degrees. When the full protector is placed vertically, the arc-shaped plates of the two arc components are projected on the horizontal plane as a complete circle; Alternatively, it includes two groups of coaxially placed basic components, each group of basic components includes a locking column and two symmetrically arranged arc components. There are a total of four arc components in the two groups of basic components, which are staggered at 90°. The curvature of the arc component is ≥1 / 4 circle and ≤1 / 2 circle. When the full protector is placed vertically, the projection of the arc-shaped plates of the four arc components on the horizontal plane is a complete circular ring.

5. The umbrella-shaped sucker rod protector according to claim 3, characterized in that: Both ends of the arc-shaped plate are provided with inner chamfers, both ends of the locking column are provided with outer chamfers, and both ends of the rib plate are provided with outer chamfers.

6. The umbrella-shaped sucker rod protector according to claim 5, characterized in that: The inner chamfers at both ends of the arc-shaped plate are 45°, the outer chamfers at both ends of the locking column are 45°, and the angle between the outer chamfer of the rib plate and the locking column is 135°.

7. The umbrella-shaped sucker rod protector according to claim 1, characterized in that: The sucker rod umbrella-shaped full protector is integrally injection-molded from nylon material.

8. The umbrella-shaped sucker rod protector according to claim 1, characterized in that: The cross-sectional area of ​​each set of basic components must be less than or equal to the cross-sectional area of ​​the sucker rod coupling of the same level; The inner diameter of the arc-shaped plate is smaller than the outer diameter of the sucker rod coupling of the same level, and the outer diameter of the arc-shaped plate is smaller than the inner diameter of the oil pipe; When the inner diameter of the oil pipe is 62 mm, the outer diameter of the arc-shaped plate is 56-59 mm.

9. The umbrella-shaped sucker rod protector according to claim 8, characterized in that: The inner diameter of the arc-shaped plate is 1 mm smaller than the outer diameter of the sucker rod coupling of the same grade; The outer diameter of the arc-shaped plate is 3-6 mm smaller than the inner diameter of the oil pipe; When the inner diameter of the oil pipe is 62 mm, the outer diameter of the arc-shaped plate is 58 mm.

10. The umbrella-shaped sucker rod protector according to claim 3, characterized in that: The thickness of the rib plate is 6mm, the length of the arc-shaped plate is 220mm, the thickness of the locking column is 3-9mm and the length is 500mm; Matching When coupling, the inner diameter of the arc plate is to The outer diameter is Matching When coupling, the inner diameter of the arc plate is to The outer diameter is Matching When the coupling is to 50.8mm, outer diameter Matching When the coupling is to 55.6mm, outer diameter 11. A sucker rod assembly, characterized in that: It comprises the sucker rod umbrella-shaped full protector and a sucker rod as claimed in claim 1, wherein the sucker rod umbrella-shaped full protector is sleeved on the outer periphery of the sucker rod; Alternatively, the sucker rod umbrella-shaped full protector is sleeved on a short section, and the short section can be connected to the sucker rod.

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