CN215292379U - Surface polymer non-metal coating anti-corrosion sucker rod - Google Patents
Surface polymer non-metal coating anti-corrosion sucker rod Download PDFInfo
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- CN215292379U CN215292379U CN202121181363.1U CN202121181363U CN215292379U CN 215292379 U CN215292379 U CN 215292379U CN 202121181363 U CN202121181363 U CN 202121181363U CN 215292379 U CN215292379 U CN 215292379U
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Abstract
The utility model discloses a surface polymer nonmetal coating anticorrosion sucker rod, including oil pole body and oil pole head, the outside of oil pole body and oil pole head is all scribbled and is equipped with first anticorrosive coating, the outside of first anticorrosive coating bonds there is the enhancement layer, the enhancement layer includes carbon fiber layer and aluminium oxide coating, the outside of enhancement layer is scribbled and is equipped with the second anticorrosive coating, both ends all are provided with oil pole head about the oil pole body, and the one end of oil pole head is provided with the off-load groove. The utility model discloses an effect of first anticorrosive coating, enhancement layer and second anticorrosive coating has solved current anticorrosive sucker rod and has not only born all loads of sucker rod post, still must bear simultaneously in the work and corrode, wearing and tearing and periodic sexual intercourse variable load, the condition of corrosion fatigue failure appears easily, and corrosion fatigue failure mainly is produced under the combined action of tensile stress and corrosive medium, and then has reduced its life's problem.
Description
Technical Field
The utility model relates to a sucker rod technical field specifically is anticorrosive sucker rod of surface polymer non-metallic coating.
Background
The sucker rod is a slender rod piece of an oil pumping well, the upper part of the sucker rod is connected with a polished rod, and the lower part of the sucker rod is connected with an oil well pump to play a role in transmitting power. As the oil field is in a tertiary oil recovery stage, most of the water content of the oil well is more than eighty percent, and the water contains a large amount of sulfur, acid, calcium, magnesium and other ions, the corrosion and scaling of the sucker rod are serious, so that the high-molecular non-metal coating anticorrosion sucker rod appears on the market.
The applicant finds that at least the following technical problems exist in the prior art: the existing anticorrosion sucker rod not only bears all loads of a sucker rod string, but also bears corrosion, abrasion and periodic alternating loads in work, the corrosion fatigue failure condition is easy to occur, the corrosion fatigue failure mainly occurs under the combined action of tensile stress and a corrosion medium, and then the service life of the sucker rod is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a surperficial polymer nonmetal coating anticorrosion sucker rod, possess the advantage that intensity is high and corrosion resistance is strong, solved current anticorrosion sucker rod and not only bear all loads of sucker rod post, still need bear corruption, wearing and tearing and periodic alternating load in the work simultaneously, the condition of corrosion fatigue failure appears easily, and corrosion fatigue failure mainly is produced under the combined action of tensile stress and corrosive medium, and then has reduced its life's problem.
In order to achieve the above object, the utility model provides a following technical scheme: anticorrosive sucker rod of non-metallic coating of surface polymer, including oil pole body and oil pole head segment, the outside of oil pole body and oil pole head segment is all scribbled and is equipped with first anticorrosive coating, the outside bonding of first anticorrosive coating has the enhancement layer, the enhancement layer includes carbon fiber layer and aluminium oxide coating, the outside of enhancement layer is scribbled and is equipped with the second anticorrosive coating.
Preferably, the left end and the right end of the oil rod body are both provided with oil rod head sections, and one end of each oil rod head section is provided with an unloading groove.
Preferably, the first anticorrosive layer is an epoxy resin coating, and the thickness of the first anticorrosive layer is three hundred micrometers to five hundred micrometers.
Preferably, the inner side of the carbon fiber layer is bonded to the outer side of the first anticorrosive layer, and the inner side of the aluminum oxide coating is coated on the outer side of the carbon fiber layer.
Preferably, the second anticorrosive layer is an ultrahigh molecular weight polyethylene coating, ultrahigh molecular weight polyethylene fibers are added in the ultrahigh molecular weight polyethylene coating, and meanwhile, the thickness of the second anticorrosive layer is five hundred micrometers to eight hundred micrometers.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model has the advantages that the first anticorrosive coating has strong adhesive force, can be well coated outside the oil rod body and the oil rod head section, enhances the corrosion resistance of the oil rod body, enhances the strength, hardness and toughness of the surface of the oil rod body and the oil rod head section under the matching of the carbon fiber layer and the aluminum oxide coating through the effect of the enhancement layer, effectively reduces the influence caused by the tensile stress, has certain buffering and resisting capabilities and corrosion resistance, improves the tensile strength, modulus, impact strength and creep resistance of the surface of the oil rod body and the oil rod head section through the effect of the second anticorrosive coating, ensures that the oil rod body and the oil rod head section have strong enough corrosion resistance and wear resistance, has the advantages of high strength and strong corrosion resistance through the matching effect of the above structures, reduces the influence caused by the tensile stress, and greatly prolongs the service life of the oil rod body and the oil rod head section, the problem of current anticorrosive sucker rod not only bear the whole loads of sucker rod string, still need bear corruption, wearing and tearing and periodic alternating load in work simultaneously, the condition of corrosion fatigue failure appears easily, and corrosion fatigue failure mainly produces under the combined action of tensile stress and corrosive medium, and then has reduced its life is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the coating layer of the present invention;
fig. 3 is a schematic view of the structure of the enhancement layer of the present invention.
In the figure: 1. a sucker rod body; 2. a sucker rod head section; 3. a first anticorrosive layer; 4. an enhancement layer; 41. a carbon fiber layer; 42. an aluminum oxide coating; 5. and a second anticorrosive layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The utility model discloses a pole body 1, pole head 2, first anticorrosive coating 3, enhancement layer 4, carbon fiber layer 41, aluminium oxide coating 42 and 5 parts of second anticorrosive coating are the parts that general standard or technical staff in the field know, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.
Referring to fig. 1-3, the surface polymer nonmetal coating anticorrosion sucker rod comprises an oil rod body 1 and an oil rod head section 2, the left and right ends of the oil rod body 1 are both provided with the oil rod head section 2, one end of the oil rod head section 2 is provided with an unloading groove, the outer sides of the oil rod body 1 and the oil rod head section 2 are both coated with a first anticorrosion layer 3, the first anticorrosion layer 3 is an epoxy resin coating, the thickness of the first anticorrosion layer 3 is three hundred micrometers to five hundred micrometers, the first anticorrosion layer 3 has strong adhesive force under the action of the first anticorrosion layer 3, can be well coated on the outer sides of the oil rod body 1 and the oil rod head section 2, and enhances the corrosion resistance of the first anticorrosion layer 3, the outer side of the first anticorrosion layer 3 is bonded with a reinforcing layer 4, the reinforcing layer 4 comprises a carbon fiber layer 41 and an aluminum oxide coating 42, the inner side of the carbon fiber layer 41 is bonded on the outer side of the first anticorrosion oxide layer 3, and the inner side of the aluminum oxide coating 42 is coated on the outer side of the carbon fiber layer 41, through the effect of the enhancement layer 4, under the cooperation of the carbon fiber layer 41 and the aluminum oxide coating 42, the strength, the hardness and the toughness of the surfaces of the oil rod body 1 and the oil rod head section 2 are enhanced, the influence caused by tensile stress is effectively reduced, and the oil rod head section has certain buffering and resisting capabilities and certain corrosion resistance, the second corrosion-resistant layer 5 is coated on the outer side of the enhancement layer 4, the second corrosion-resistant layer 5 is an ultrahigh molecular weight polyethylene coating, ultrahigh molecular weight polyethylene fibers are added in the ultrahigh molecular weight polyethylene coating, meanwhile, the thickness of the second corrosion-resistant layer 5 is five hundred micrometers to eight hundred micrometers, through the effect of the second corrosion-resistant layer 5, the tensile strength, the modulus, the impact strength and the creep resistance of the surfaces of the oil rod body 1 and the oil rod head section 2 are improved, and the corrosion resistance and the abrasion resistance which are strong enough are ensured.
When the oil rod head section is used, the first anticorrosive coating 3 has strong adhesive force, can be well coated on the outer sides of the oil rod body 1 and the oil rod head section 2 and enhances the corrosion resistance of the oil rod body, the carbon fiber layer 41 and the aluminum oxide coating 42 are matched through the effect of the enhancement layer 4, the strength, the hardness and the toughness of the surfaces of the oil rod body 1 and the oil rod head section 2 are enhanced, the influence generated by tensile stress is effectively reduced, the oil rod head section has certain buffering and resisting capabilities and certain corrosion resistance, the tensile strength, the modulus, the impact strength and the creep resistance of the surfaces of the oil rod body 1 and the oil rod head section 2 are improved through the effect of the second anticorrosive coating 5, the oil rod head section has strong enough corrosion resistance and abrasion resistance, the oil rod head section has the advantages of high strength and strong corrosion resistance through the matching effect of the structures, and the influence generated by the tensile stress is reduced, the anti-corrosion sucker rod greatly prolongs the service life, and solves the problems that the existing anti-corrosion sucker rod not only bears all loads of a sucker rod string, but also bears corrosion, abrasion and periodic alternating loads in work, so that the corrosion fatigue failure is easy to occur, and the corrosion fatigue failure is mainly generated under the combined action of tensile stress and corrosion medium, so that the service life is further reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Anticorrosive sucker rod of nonmetal coating of surface polymer, including sucker rod body (1) and sucker rod head segment (2), its characterized in that: the outside of pole body (1) and pole head (2) all scribbles and is equipped with first anticorrosive coating (3), the outside of first anticorrosive coating (3) bonds and has enhancement layer (4), enhancement layer (4) include carbon fiber layer (41) and aluminium oxide coating (42), the outside of enhancement layer (4) is scribbled and is equipped with second anticorrosive coating (5).
2. The surface polymer nonmetal coating anticorrosion sucker rod of claim 1, which is characterized in that: the left end and the right end of the oil rod body (1) are both provided with oil rod head sections (2), and one end of each oil rod head section (2) is provided with an unloading groove.
3. The surface polymer nonmetal coating anticorrosion sucker rod of claim 1, which is characterized in that: the first anticorrosive layer (3) is an epoxy resin coating, and the thickness of the first anticorrosive layer (3) is three hundred microns to five hundred microns.
4. The surface polymer nonmetal coating anticorrosion sucker rod of claim 1, which is characterized in that: the inner side of the carbon fiber layer (41) is bonded to the outer side of the first anti-corrosion layer (3), and the inner side of the aluminum oxide coating layer (42) is coated on the outer side of the carbon fiber layer (41).
5. The surface polymer nonmetal coating anticorrosion sucker rod of claim 1, which is characterized in that: the second anticorrosive layer (5) is an ultrahigh molecular weight polyethylene coating, ultrahigh molecular weight polyethylene fibers are added in the ultrahigh molecular weight polyethylene coating, and meanwhile, the thickness of the second anticorrosive layer (5) is five hundred micrometers to eight hundred micrometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181363.1U CN215292379U (en) | 2021-05-28 | 2021-05-28 | Surface polymer non-metal coating anti-corrosion sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121181363.1U CN215292379U (en) | 2021-05-28 | 2021-05-28 | Surface polymer non-metal coating anti-corrosion sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215292379U true CN215292379U (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121181363.1U Active CN215292379U (en) | 2021-05-28 | 2021-05-28 | Surface polymer non-metal coating anti-corrosion sucker rod |
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| CN (1) | CN215292379U (en) |
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2021
- 2021-05-28 CN CN202121181363.1U patent/CN215292379U/en active Active
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