Sucker rod umbrella-shaped full protector and sucker rod assembly

Abstract

The invention provides a sucker rod umbrella-shaped full protector which comprises at least two sets of basic assemblies, each set of basic assembly comprises a locking column and at least one arc assembly, each arc assembly comprises a connecting piece and an arc-shaped plate piece, and the outer side of each locking column is connected with the inner side of the arc-shaped plate piece through the corresponding 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 beneficial effects that the problems that in the prior art, a pipe rod eccentric wear tool cannot convey scraped wax out, wax accumulation is caused, the rod is broken, the 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 conveyed 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 invention belongs to the field of petroleum technology, and in particular relates to an umbrella-shaped full protector for a sucker rod. Background Art

[0002] In the production process of oil wells in the oil field, in addition to the problem of eccentric wear of the pipe and rod, there is also the problem of continuous wax deposition in the oil. In order to solve these problems, there are currently a variety of tools that can prevent eccentric wear and have the function of scraping wax. These tools are divided into two categories: external tooth shape and internal tooth shape: 1. Straight tooth and helical tooth shape tools represented by sucker rod straighteners; 2. Internal tooth shape tools represented by full guards.

[0003] Neither of these two types of tools solves the problem of transporting the scraped wax, resulting in the continuous deposition of wax on the inner wall of the tubing and the surface of the anti-eccentric wear tool, causing the oil flow channel to gradually decrease. When the sucker rod above the waxing point moves downward, the upper rod body bends due to excessive resistance, causing the offset position to shift, making it difficult to formulate anti-eccentric wear measures in the future. At the same time, the resistance to rod movement increases, accelerating the fatigue of the sucker rod and reducing its lifespan, and wax jams will directly cause the rod to break. When the sucker rod below the waxing point is in operation, the pressure in the tubing rises sharply, the creep amplitude increases, the tubing fatigue accelerates, and the leakage increases.

[0004] If you want to clean the oil pipe pulled out of the well, the most economical way is to boil off the oil and wax attached to the pipe wall with water at the pipe factory, but this method cannot completely clean the inner wall of the pipe. The inner wall of the pipe that is not cleaned will cause the anti-wear tool to encounter resistance when it goes down the well. At the same time, the newly generated wax after the pumping operation will cause the flow channel area to be smaller, and the movement resistance will increase rapidly, which will increase the stress amplitude and aggravate fatigue.

[0005] In summary, the above two types of tools for preventing pipe and rod eccentric wear in the prior art have not solved 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 present invention aims to propose an umbrella-shaped sucker rod protector to solve the problems of the prior art pipe-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 invention can realize the pipe-rod anti-eccentric wear while facilitating the transport 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] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0008] A sucker rod umbrella-shaped full protector, comprising at least two groups of basic components, each group 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 is connected to the inner side of the arc-shaped plate through the connecting piece;

[0009] Each group of basic components is an independent structure, or multiple groups of basic components form an integral 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, umbrella-shaped or mushroom-shaped.

[0013] Further, it comprises two groups of coaxially placed basic components, each group of the basic components comprises 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°. 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 circular ring;

[0014] Alternatively, it comprises two groups of coaxially placed basic components, each group of the basic components comprises 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, and 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 component scrape off the two symmetrical parts of wax attached to the inner wall of the oil pipe; the two arc components of the lower base component scrape off the remaining two symmetrical parts of wax attached to the inner wall of the oil pipe; this can improve the scraping effect and efficiency; it is conducive to squeezing out the wax deposited on the full protector, and the squeezed wax is carried out of the oil pipe by the liquid flow. A gap is set between adjacent arc components to facilitate the scraped excess wax to enter 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 length of the outer chamfer 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 with nylon material, which can improve the overall performance of the umbrella-shaped full protector.

[0019] Furthermore, the cross-sectional area of ​​each group of the basic components should be less than or equal to the cross-sectional area of ​​the same-level sucker rod coupling. Therefore, even if the full protector is installed, the sucker rod will not increase the movement resistance during the up and down movement, the eccentric wear position will not move, and the rod will not break near the full protector. If the requirements are not met, the problem can be solved by reducing the thickness of the arc plate;

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

[0021] Preferably, the inner diameter of the arc-shaped plate is 1mm smaller than the outer diameter of the same-level sucker rod coupling. The arc-shaped plate and the inner wall of the oil pipe produce contact wear, first wearing the available wear 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 available wear volume of the umbrella-shaped full protector is larger.

[0022] Preferably, the outer diameter of the arc-shaped plate is 3-6 mm smaller than the inner diameter of the oil pipe;

[0023] 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.

[0024] 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;

[0025] Matching When the hoop is connected, the inner diameter of the arc plate is to The outer diameter is

[0026] Matching When the hoop is connected, the inner diameter of the arc plate is to The outer diameter is

[0027] Matching When the coupling is of to 50.8mm, outer diameter

[0028] Matching When the coupling is of to 55.6mm, outer diameter

[0029] A sucker rod assembly, comprising the sucker rod umbrella-shaped full protector according to claim 1 and a sucker rod, wherein the sucker rod umbrella-shaped full protector is sleeved around the outer periphery of the sucker rod;

[0030] 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 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 inconvenient and costly. In this case, a short joint equipped with a full protector can be connected to the well section.

[0031] The sucker rod includes a rod body and a coupling at one end of the rod body, a wrench square is arranged below the coupling, and 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, which is convenient for the elevator clamping. The elevator can be conveniently clamped to place the sucker rod with the umbrella-shaped full protector 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.

[0032] The advantages and positive effects of the present invention are as follows: it solves the problems of the prior art tubular 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 present invention can, while achieving tubular rod eccentric wear prevention, facilitate transporting the scraped wax, thereby avoiding rod breakage, avoiding increased stress amplitude, avoiding increased stroke loss, avoiding shortening of oil well maintenance cycle, and facilitating cost reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 is a schematic diagram of the overall structure of the sucker rod assembly in Example 1 of the present invention;

[0035] Figure 2 is a bottom view of embodiment 1 of the present invention;

[0036] Figure 3 yes Figure 1 AA section view.

[0037] Figure 4 Schematic diagram of eccentric wear of the full guard in Example 1 of the present invention.

[0038] In the figure:

[0039] 1. Locking column 2. Sucker rod 3. Arc plate 4. Rib plate

[0040] 5. Inner chamfer of arc-shaped plate 6. Oil pipe 7. Outer chamfer of locking column 8. Coupling

[0041] 9. Rib transition zone 10. Wrench square 11. Elevator clamping section DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the structure of the device components will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and height should be included.

[0045] 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like 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.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0047] Embodiment 1:

[0048] like Figures 1 to 3 As shown, the present invention is an umbrella-shaped full protector for sucker rods, comprising two groups of coaxially placed basic components, the two groups of basic components are integral structures, each group of the basic components comprises a locking column 1 and two symmetrically arranged arc components, each of the arc components comprises a connecting piece and an arc-shaped plate 3;

[0049] 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 stability of the umbrella-shaped full protector structure.

[0050] The cross section of the arc component is like a T-shape, an umbrella shape or a mushroom shape.

[0051] There are a total of four arc components 3 of 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 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.

[0052] The two arc-shaped plates 3 of the upper base assembly scrape off two symmetrical parts of wax attached to the inner wall of the oil pipe 6; the two arc-shaped plates 3 of the lower base assembly scrape off the remaining two symmetrical parts of wax attached to the inner wall of the oil pipe 6; this can improve the wax scraping effect and efficiency; it is beneficial to squeeze out the wax deposited on the full protector, and the squeezed wax is carried out of the oil pipe 6 by the liquid flow. A gap is set between adjacent arc-shaped plates, which is beneficial for the scraped excess wax to enter the gap.

[0053] 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.

[0054] The sucker rod umbrella-shaped full protector is integrally injection-molded by nylon material, which can improve the overall performance of the umbrella-shaped full protector.

[0055] The cross-sectional area of ​​each group of the basic components must be ≤ the cross-sectional area of ​​the same-level sucker rod coupling. Therefore, even if the full protector is installed, the movement resistance of the sucker rod will not increase during the up and down movement, the eccentric wear position will not move, 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 being blocked in the oil pipe, and improve the working efficiency of the umbrella-shaped full protector. When the requirements are not met, it can be solved by reducing the thickness of the arc plate;

[0056] The inner diameter of the arc-shaped plate is 1mm smaller than the outer diameter of the same-level sucker rod coupling. The arc-shaped plate and the inner wall of the oil pipe produce contact wear, which first wears the available wear volume on the outer side of the arc-shaped plate. When only 1mm is left, the coupling will be worn. At this time, the parts must be replaced in time. The available wear volume of the umbrella-shaped full protector is larger.

[0057] The outer diameter of the arc-shaped plate is 3-6 mm smaller than the inner diameter of the oil pipe;

[0058] 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.

[0059] 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;

[0060] Matching When the hoop is connected, the inner diameter of the arc plate is to The outer diameter is

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

[0063] Matching When the coupling is of to 50.8mm, outer diameter

[0064] Matching When the coupling is of to 55.6mm, outer diameter

[0065] 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 integrally injection-molded, and is directly sleeved on the outer periphery of the sucker rod 2; it can be easily processed and manufactured, and the overall strength and other properties of the umbrella-shaped full protector are guaranteed; it is beneficial 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.

[0066] 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 inconvenient and costly. In this case, a short joint equipped with a full protector can be connected to the well section.

[0067] The sucker rod 2 includes a rod body and a coupling 8 at one end of the rod body (for connecting two adjacent sucker rods to lengthen 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 clamp the sucker rod installed with the umbrella-shaped full protector, 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.

[0068] Embodiment 2:

[0069] Compared with Example 1, each group of the 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 at 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.

[0070] 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 dotted line portion represents the arc-shaped plate 3 that is worn away by the inner wall of the oil pipe 6. The outer side of the arc-shaped plate 3 is worn away by the inner wall of the oil pipe 6, and its wall thickness is reduced at this time.

[0071] When the present invention is used, 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 up and down 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 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 on the horizontal plane, it can help to ensure that the sucker rod is fully and effectively protected from eccentric 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 of 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 tool can, while preventing the eccentric wear of the pipe and rod, facilitate the transport of the scraped wax, thereby avoiding rod breakage, increased stress amplitude, increased stroke loss, shortened oil well maintenance cycle, and helping to reduce costs.

[0072] 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 whole protector body or precipitated can be rubbed off and squeezed off, and carried out of the oil pipe by the liquid flow, so that the wax can be transported out without being blocked, so that the flow channel can be cleaned in time and the flow area remains constant.

[0073] The patent application publication number CN 108643848 A discloses an eye-type full protector, a cylinder-type full protector, and a fan-type full protector. All three types of full protectors 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 clogged, seriously affecting the oil extraction efficiency.

[0074] Compared with other full protectors, the present invention 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.

[0075] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot 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 in that: It comprises at least 2 groups of basic components, each group of the 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 integral structure.

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

3. The sucker rod umbrella-shaped full protector according to claim 1 or 2, characterized in that: The connecting member is a long strip 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; The cross section of the arc component is T-shaped, umbrella-shaped or mushroom-shaped.

4. The sucker rod umbrella-shaped full protector according to claim 1 is characterized in that: It comprises two groups of coaxially placed basic components, each group of the basic components comprises 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°. 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 circular ring; Alternatively, it comprises two groups of basic components coaxially placed up and down, each group of the basic components comprises a locking column and two symmetrically arranged arc components, there are a total of four arc components in the two groups of basic components, they are staggered at 90°, the curvature of the arc components is ≥ 1 / 4 circle and ≤ 1 / 2 circle, and 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 sucker rod umbrella-shaped full protector according to claim 1 is 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 sucker rod umbrella-shaped full protector according to claim 5 is 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 sucker rod umbrella-shaped full protector according to claim 1 is characterized in that: The sucker rod umbrella-shaped full protector is integrally injection-molded by nylon material.

8. The sucker rod umbrella-shaped full protector according to claim 1 is characterized in that: The cross-sectional area of ​​each group of the basic components should 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 same-level sucker rod coupling, and the outer diameter of the arc-shaped plate is smaller than the inner diameter of the oil pipe; Preferably, the inner diameter of the arc-shaped plate is 1 mm smaller than the outer diameter of the same-level sucker rod coupling; Preferably, 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 56-59 mm, preferably 58 mm.

9. The sucker rod umbrella-shaped full protector according to claim 1, 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 the hoop is connected, the inner diameter of the arc plate is to The outer diameter is Matching When the hoop is connected, the inner diameter of the arc plate is to The outer diameter is Matching When the coupling is of to 50.8mm, outer diameter Matching When the coupling is of to 55.6mm, outer diameter 10. 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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