CN215520799U

CN215520799U - Full-corrosion-resistant oil pipe made of solvent-altering high polymer material

Info

Publication number: CN215520799U
Application number: CN202121730009.XU
Authority: CN
Inventors: 何玉鑫
Original assignee: Yixing Xingyun Petrochemical Pipe Fittings Co ltd
Current assignee: Yixing Xingyun Petrochemical Pipe Fittings Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-14
Anticipated expiration: 2031-07-28

Abstract

The utility model relates to the technical field of oil pipes and discloses a full-corrosion-resistant oil pipe made of a solvent-altering high polymer material, which comprises a coupling, a long male-female joint, an oil pipe and a short male-female joint, wherein a first thread is arranged on the long male-female joint, a first convex groove is formed in the coupling, a first screw groove matched with the first thread is formed in the first convex groove, a second cushion is fixed on the inner wall of the first convex groove, and a first cushion is fixed on the long male-female joint. This dissolve and scribble full anticorrosive oil pipe of modified macromolecular material, through fixed first cushion on long public female joint, fixed third cushion and fifth cushion on the oil pipe, strengthen sealing performance, prevent the oil leak, through the second cushion at the inner wall fixed of first protruding type recess, the fourth cushion of the inner wall fixed of the protruding type recess of second, the sixth cushion of the inner wall fixed of the protruding type recess of third, frictional property when strengthening each subassembly and connecting.

Description

Full-corrosion-resistant oil pipe made of solvent-altering high polymer material

Technical Field

The utility model relates to the technical field of oil pipes, in particular to a full-corrosion-resistant oil pipe made of a solvent-altering high polymer material.

Background

In oil and gas development, the oil well pipe bears the combined action of various loads and different corrosion media in work, some oil wells contain brine, carbon dioxide, hydrogen sulfide or corrosive microorganisms, and the service life of the oil well pipe is greatly shortened due to the existence of the corrosive media or the corrosive microorganisms. Therefore, in order to meet the requirements of oil field large pump, strong production and oil well production conditions, the oil pipe with the corrosion resistance is processed and manufactured, and the method is a key measure for prolonging the service life of an oil well pipe and reducing the oil production cost of the oil field.

Some oil pipes on the market today:

(1) in the using process, the existing oil pipe has poor sealing performance due to the fact that residual oil exists in the pipe;

(2) in the use, because can produce not hard up reason when a plurality of subassemblies are connected, current oil pipe steadiness is poor.

Therefore, we propose a solution-modified high polymer material fully corrosion-resistant oil pipe in order to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the defects of the prior art in the background art, the present invention provides a solvent-modified high polymer material fully-anticorrosive oil pipe, so as to solve the problems of poor sealing performance and poor stability of some solvent-modified high polymer material fully-anticorrosive oil pipes in the current market proposed in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a dissolution and modification high polymer material full-corrosion-resistant oil pipe comprises a coupling, a long male-female joint, an oil pipe and a short male-female joint, wherein a first thread is arranged on the long male-female joint, a first convex groove is formed in the coupling, a first screw groove matched with the first thread is formed in the first convex groove, a second cushion is fixed on the inner wall of the first convex groove, a first cushion is fixed on the long male-female joint, a second thread and a third thread are arranged on the oil pipe, and a second convex groove is formed in the long male-female joint;

offer the second thread groove with second screw thread looks adaptation on the protruding type recess of second, the inner wall of the protruding type recess of second is fixed with the fourth cushion, oil pipe's one end is fixed with the third cushion, the protruding type recess of third has been seted up on the short male-female joint, set up the third thread groove with third screw thread looks adaptation on the protruding type recess of third, the inner wall of the protruding type recess of third is fixed with the sixth cushion, be fixed with the fifth cushion on the oil pipe.

Preferably, the oil pipe comprises a corrosion protection layer.

Preferably, the coupling, the long male-female joint, the oil pipe and the short male-female joint are all provided with an anti-corrosion film and a high-temperature resistant film.

Preferably, the long male-female joint is in threaded connection with a first thread groove of a first convex groove through a first thread, the oil pipe is in threaded connection with a second thread groove of a second convex groove through a second thread, and the oil pipe is in threaded connection with a third thread groove of a third convex groove through a third thread.

Further, the anticorrosion layer comprises a first epoxy resin layer and a second epoxy resin layer, a phenolic resin layer is arranged between the first epoxy resin layer and the second epoxy resin layer, one side of the phenolic resin layer is fixed with one side of the first epoxy resin layer, and the other side of the phenolic resin layer is fixed with one side of the second epoxy resin layer.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: the dissolution-modification high polymer material full-corrosion-resistant oil pipe comprises the following components:

(1) through the first cushion fixed on long male-female joint, the third cushion and the fifth cushion fixed on the oil pipe, the sealing performance is enhanced, and oil leakage is prevented.

(2) Through the second cushion fixed at the inner wall of the first convex groove, the fourth cushion fixed at the inner wall of the second convex groove and the sixth cushion fixed at the inner wall of the third convex groove, the friction property when each component is connected is enhanced.

Drawings

FIG. 1 is a schematic view of the structure of a solvent-modified polymer material full-corrosion-resistant oil pipe according to the present invention;

FIG. 2 is a schematic view of a first convex groove structure of the solvent-modified high polymer material full anti-corrosion oil pipe of the present invention;

FIG. 3 is a schematic view of a third convex groove structure of the solvent-modified high polymer material full anti-corrosion oil pipe of the present invention;

FIG. 4 is a schematic cross-sectional view of an oil pipe of the solvent-altering all-corrosion-resistant oil pipe made of polymer material according to the present invention;

FIG. 5 is a schematic cross-sectional view of an anticorrosive coating of the completely anticorrosive oil pipe made of solvent-modified polymer material according to the present invention.

In the figure: coupling 1, long male and female joint 2, oil pipe 3, short male and female joint 4, first protruding type recess 5, first thread groove 6, first cushion 7, second cushion 8, first screw thread 9, the protruding type recess 10 of second, second thread groove 11, third cushion 12, fourth cushion 13, second screw thread 14, the protruding type recess 15 of third, third thread groove 16, fifth cushion 17, sixth cushion 18, third screw thread 19, anticorrosive coating 20, first epoxy 201, phenolic resin 202, second epoxy 203.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a solution-modified polymer material full anti-corrosion oil pipe; the connecting structure comprises a coupling 1, a long male-female joint 2, an oil pipe 3 and a short male-female joint 4, wherein a first thread 9 is arranged on the long male-female joint 2, a first convex groove 5 is formed in the coupling 1, a first thread groove 6 matched with the first thread 9 is formed in the first convex groove 5, a second cushion 8 is fixed on the inner wall of the first convex groove 5, a first cushion 7 is fixed on the long male-female joint 2, a second thread 14 and a third thread 19 are arranged on the oil pipe 3, and a second convex groove 10 is formed in the long male-female joint 2;

a second thread groove 11 matched with a second thread 14 is formed in the second convex groove 10, a fourth soft cushion 13 is fixed on the inner wall of the second convex groove 10, a third soft cushion 12 is fixed at one end of the oil pipe 3, a third convex groove 15 is formed in the short male-female joint 4, a third thread groove 16 matched with a third thread 19 is formed in the third convex groove 15, a sixth soft cushion 18 is fixed on the inner wall of the third convex groove 15, and a fifth soft cushion 17 is fixed on the oil pipe 3;

as a preferred technical scheme of the utility model: the oil pipe 3 comprises an anticorrosive coating 20, and the anticorrosive performance of the oil pipe 3 is enhanced through the anticorrosive coating 20;

as a preferred technical scheme of the utility model: the coupling 1, the long male-female joint 2, the oil pipe 3 and the short male-female joint 4 are all provided with an anti-corrosion film and a high-temperature resistant film, and the service performance of the coupling 1, the long male-female joint 2, the oil pipe 3 and the short male-female joint 4 is enhanced through the matching of the anti-corrosion film and the high-temperature resistant film;

as a preferred technical scheme of the utility model: the long male-female joint 2 is in threaded connection with a first thread 6 of a first convex groove 5 through a first thread 9, the oil pipe 3 is in threaded connection with a second thread 11 of a second convex groove 10 through a second thread 14, and the oil pipe 3 is in threaded connection with a third thread 16 of a third convex groove 15 through a third thread 19;

as a preferred technical scheme of the utility model: the anticorrosion layer 20 comprises a first epoxy resin layer 201 and a second epoxy resin layer 203, a phenolic resin layer 202 is arranged between the first epoxy resin layer 201 and the second epoxy resin layer 203, one side of the phenolic resin layer 202 is fixed with one side of the first epoxy resin layer 201, the other side of the phenolic resin layer 202 is fixed with one side of the second epoxy resin layer 203, and the performance of the anticorrosion layer 20 is enhanced through the cooperation of the first epoxy resin layer 201, the phenolic resin layer 202 and the second epoxy resin layer 203.

The working principle of the embodiment is as follows: when the dissolution-modification high polymer material full-corrosion-resistant oil pipe is used, as shown in fig. 1 to 5, the first thread 6 is screwed with the first screw groove 9, the second thread 14 is screwed with the second screw groove 11, and the third thread 19 is screwed with the third screw groove 16, which is the working process of the whole device, and the content which is not described in detail in the specification belongs to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, may be fixedly connected or detachably connected; or indirectly through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations; it will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.

Claims

1. A full-corrosion-resistant oil pipe made of a solvent-altering high polymer material comprises a coupling (1), a long male-female joint (2), an oil pipe (3) and a short male-female joint (4), and is characterized in that a first thread (9) is arranged on the long male-female joint (2), a first convex groove (5) is formed in the coupling (1), a first screw groove (6) matched with the first thread (9) is formed in the first convex groove (5), a second cushion (8) is fixed on the inner wall of the first convex groove (5), a first cushion (7) is fixed on the long male-female joint (2), a second thread (14) and a third thread (19) are arranged on the oil pipe (3), and a second convex groove (10) is formed in the long male-female joint (2);

offer second thread groove (11) with second screw thread (14) looks adaptation on the protruding recess of second (10), the inner wall of the protruding recess of second (10) is fixed with fourth cushion (13), the one end of oil pipe (3) is fixed with third cushion (12), the protruding recess of third (15) has been seted up on short male-female joint (4), set up third thread groove (16) with third screw thread (19) looks adaptation on the protruding recess of third (15), the inner wall of the protruding recess of third (15) is fixed with sixth cushion (18), be fixed with fifth cushion (17) on oil pipe (3).

2. The full corrosion-resistant oil pipe made of solvent-altering polymer material according to claim 1, wherein the oil pipe (3) comprises a corrosion-resistant layer (20).

3. The full-corrosion-resistant oil pipe made of the solvent-altering polymer material according to claim 1, wherein the coupling (1), the long male-female joint (2), the oil pipe (3) and the short male-female joint (4) are all provided with a corrosion-resistant film and a high-temperature-resistant film.

4. The oil pipe of claim 1, wherein the long male-female joint (2) is in threaded connection with a first thread (6) of a first convex groove (5) through a first thread (9), the oil pipe (3) is in threaded connection with a second thread (11) of a second convex groove (10) through a second thread (14), and the oil pipe (3) is in threaded connection with a third thread (16) of a third convex groove (15) through a third thread (19).

5. The all-corrosion-resistant oil pipe made of the solvent-altering polymer material according to claim 2, wherein the corrosion-resistant layer (20) comprises a first epoxy resin layer (201) and a second epoxy resin layer (203), a phenolic resin layer (202) is arranged between the first epoxy resin layer (201) and the second epoxy resin layer (203), one side of the phenolic resin layer (202) is fixed with one side of the first epoxy resin layer (201), and the other side of the phenolic resin layer (202) is fixed with one side of the second epoxy resin layer (203).