Ceramic lining oil pipe with high strength

Abstract

The high-strength ceramic lining oil pipe comprises an inner pipe and an outer sleeve, the inner pipe is located in the outer sleeve, the inner wall of the outer sleeve is slidably connected with a movable rod, the upper surface of the movable rod is fixedly connected with a limiting plate, the outer surface of the movable rod is slidably connected with a sliding block, and the sliding block is fixedly connected with the limiting plate. The lower surface of the movable rod is fixedly connected with the inner pipe, an inserting block is fixed to the upper surface of the inner pipe, and a clamping plate is slidably connected to the outer surface of the movable rod. The wear-resistant layer, the fireproof coating and the anti-corrosion layer are arranged in a matched mode, so that the wear resistance, the fireproof performance and the corrosion resistance of the whole oil pipe are improved, in the using process, a protection rod can be arranged, the protection rod is installed on the outer surface of the outer sleeve through a bolt, and the outer sleeve is well protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ceramic lined tubing, more particularly, it relates to a ceramic lined tubing with high strength. BACKGROUND

[0002] Tubing is one of the necessary materials for oil and gas field exploration and development, but due to corrosion, wear, mechanical damage and other reasons, the amount of metal tubing scrapped in China is huge every year. Ceramic lined tubing is a high-tech product that uses "self-propagating high-temperature synthesis" to combine a ceramic layer on the inner wall of the tubing, which has the characteristics of wear resistance, heat resistance, corrosion resistance, and anti-fouling, and the corrosion resistance is more than 30 times that of ordinary tubing, and is particularly suitable for severe corrosion, fouling and waxing conditions of oil and water wells.

[0003] The current ceramic lined tubing has a single structure and low strength, and when the outer surface is damaged by gravity, it is easy to cause damage to the tubing from the outer surface, resulting in additional loss of the tubing, and the outer wall of the ceramic lined tubing has poor wear resistance and cannot provide good protection to the surface of the ceramic lined tubing, so a ceramic lined tubing with high strength is needed. SUMMARY

[0004] (I) Technical problems solved In view of the problems in the prior art, the present application provides a ceramic lined tubing with high strength to solve the problems mentioned in the background art.

[0005] (II) Technical solutions In order to achieve the above-mentioned purpose, the present application provides the following technical solutions: a ceramic lined tubing with high strength, comprising an inner tube and an outer sleeve, the inner tube is located inside the outer sleeve, the inner wall of the outer sleeve is slidably connected with a movable rod, the upper surface of the movable rod is fixedly connected with a limiting plate, the outer surface of the movable rod is slidably connected with a sliding block, the lower surface of the movable rod is fixedly connected with the inner tube, the upper surface of the inner tube is fixedly connected with a plug-in block, the outer surface of the movable rod is slidably connected with a clamping plate, the inner wall of the clamping plate is provided with a plug hole, the plug-in block is matched with the plug hole, the lower surface of the sliding block is fixedly connected with a spring, the lower surface of the spring is fixedly connected with the clamping plate, one side of the sliding block is fixedly connected with a mounting block, the inner wall of the clamping plate is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a sliding block, and the upper surface of the sliding block is fixedly connected with a connecting block.

[0006] Further, the inner wall of the mounting block is rotatably connected with a supporting rod, one end of the supporting rod away from the connecting block is rotatably connected with the mounting block, and the spring is located on the outer surface of the movable rod.

[0007] The upper surface of the inner tube is provided with a filler, the filler is of elastic material, the inner part of the inner tube is fixedly connected with a reinforcing rib, and the reinforcing rib is uniformly distributed in the inner part of the inner tube in a cross shape.

[0008] The upper surface of the inner tube is provided with a filler, the filler is of elastic material, the inner part of the inner tube is fixedly connected with a reinforcing rib, and the reinforcing rib is uniformly distributed in the inner part of the inner tube in a cross shape.

[0009] The upper surface of the reinforcing steel wire is fixedly connected with a cushion layer, the upper surface of the cushion layer is fixedly connected with a steel wire mesh layer, and the steel wire mesh layer is uniformly distributed on the upper surface of the cushion layer in a cross shape.

[0010] The outer surface of the inner tube is fixedly connected with a wear-resistant layer, the lower surface of the wear-resistant layer is fixedly connected with a fireproof coating, and the lower surface of the fireproof coating is fixedly connected with an anticorrosive layer.

[0011] The material of the wear-resistant layer is nano composite ceramic coating, the material of the anticorrosive layer is a three-layer structure, the bottom layer is epoxy powder coating, the middle layer is an adhesive, and the outer layer is a polyethylene coating.

[0012] The outer surface of the sleeve is fixedly connected with a fixing ring, one side of the fixing ring is threadedly connected with a protection rod through a bolt, the outer surface of the protection rod is provided with an anti-skid groove, the outer surface of the inner tube is fixedly connected with a connecting ring, one side of the connecting ring is fixedly connected with a nut, and a circular hole is formed in the inner wall of the connecting ring.

[0013] (Three) beneficial effects Compared with the prior art, the present application provides a ceramic lined oil pipe with high strength, which has the following beneficial effects: 1. The ceramic lined oil pipe with high strength is provided with an inner tube, which has a reinforcing effect. The inner tube and the sleeve are cooperatively arranged. When the sleeve is subjected to gravity, the sleeve applies pressure inward. The movable rod slides in the inner wall of the sleeve, driving the sliding block to move downward, and driving the support rod and the sliding block to slide in the sliding groove. The spring elastically tightens the sleeve and the clamping plate. The spring increases the buffering property. The clamping plate protects the inner tube. The reinforcing steel wire mesh increases the strength of the inner part. The reinforcing rib increases the strength of the inner part. The reinforcing rib, the reinforcing steel wire and the steel wire mesh layer cooperatively increase the strength of the inner tube, improve the strength of the oil pipe, avoid the collapse of the existing oil pipe under excessive pressure, and thus play a reinforcing role and achieve the reinforcing purpose.

[0014] 2、The ceramic lined oil pipe with high strength has the protection effect through the setting of the outer sleeve, the wear resistance, the fireproof performance and the corrosion resistance of the whole oil pipe are improved through the cooperation of the inner pipe and the outer sleeve, the wear resistance, the fireproof performance and the corrosion resistance of the whole oil pipe are improved through the cooperation of the wear resistance layer, the fireproof coating and the corrosion resistance layer, the protection rod is installed to the outer surface of the outer sleeve through the bolt in the process of use, the outer sleeve is well protected, wear is avoided, the protection effect is achieved, and the protection purpose is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the three-dimensional structure in the application; Figure 2 It is a structure schematic view of the three-dimensional structure in the application; Figure 3 It is a structure schematic view of the three-dimensional structure in the application; Figure 4 It is a structure schematic view of the three-dimensional structure in the application; Figure 3 It is a structure schematic view of the three-dimensional structure in the application; Figure 5 It is a structure schematic view of the three-dimensional structure in the application; Figure 6 It is a structure schematic view of the three-dimensional structure in the application; Figure 7 It is a structure schematic view of the three-dimensional structure in the application; Figure 6 It is a structure schematic view of the three-dimensional structure in the application;

[0016] In the figure: 1, inner pipe; 2, outer sleeve; 3, movable rod; 4, limiting plate; 5, sliding block; 6, plug-in block; 7, clamping plate; 8, spring; 9, mounting block; 10, sliding groove; 11, sliding block; 12, connecting block; 13, support rod; 14, filler; 15, reinforcing rib; 16, reinforcing steel bar; 17, reinforcing steel wire; 18, cushion layer; 19, steel wire mesh layer; 20, wear resistance layer; 21, fireproof coating; 22, corrosion resistance layer; 23, fixing ring; 24, protection rod; 25, anti-skid groove; 26, connecting ring; 27, nut. DETAILED DESCRIPTION

[0017] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in the application have the same meaning as generally understood by those skilled in the art to which the application belongs.

[0019] In the present application, the orientation such as "upper, lower" is generally directed to the direction shown in the drawings or the vertical, perpendicular or gravity direction unless otherwise stated; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0020] Please refer to Figures 1-7 A ceramic lined pipe with high strength, including inner tube 1 and outer sleeve 2, inner tube 1 is located in the inner sleeve 2, the inner wall of the outer sleeve 2 is slidably connected with movable rod 3, the upper surface of movable rod 3 is fixedly connected with limiting plate 4, the outer surface of movable rod 3 is slidably connected with sliding block 5, the lower surface of movable rod 3 is fixedly connected with inner tube 1, the upper surface of inner tube 1 is fixedly connected with plug-in block 6, the outer surface of movable rod 3 is slidably connected with clamping plate 7, the inner wall of clamping plate 7 is provided with insertion hole, plug-in block 6 is matched with insertion hole, the lower surface of sliding block 5 is fixedly connected with spring 8, the lower surface of spring 8 is fixedly connected with clamping plate 7, one side of sliding block 5 is fixedly connected with mounting block 9, the inner wall of clamping plate 7 is provided with sliding groove 10, the inner wall of sliding groove 10 is slidably connected with sliding block 11, the upper surface of sliding block 11 is fixedly connected with connecting block 12, the inner wall of mounting block 9 is rotatably connected with support rod 13, the end away from connecting block 12 of support rod 13 is rotatably connected with mounting block 9, spring 8 is located on the outer surface of movable rod 3, the upper surface of inner tube 1 is provided with filler 14, filler 14 is elastic material, the inner surface of inner tube 1 is fixedly connected with reinforcing rib 15, reinforcing rib 15 is evenly distributed in the inner surface of inner tube 1, the inner wall of inner tube 1 is fixedly connected with reinforcing steel bar 16, reinforcing steel bar 16 is a plurality of, the plurality of reinforcing steel bars 16 are evenly distributed in the inner wall of inner tube 1, the upper surface of inner tube 1 is fixedly connected with reinforcing steel wire 17, the upper surface of reinforcing steel wire 17 is fixedly connected with cushion layer 18, the upper surface of cushion layer 18 is fixedly connected with steel wire mesh layer 19, steel wire mesh layer 19 is evenly distributed in the upper surface of cushion layer 18.

[0021] Specifically, through the cooperation of the inner tube 1 and the outer sleeve 2, when the outer sleeve 2 is subjected to gravity during use, the outer sleeve 2 applies pressure inward, the movable rod 3 slides in the inner wall of the outer sleeve 2, the sliding block 5 moves downward, the support rod 13 and the sliding block 11 slide in the sliding groove 10, the spring 8 elastically tightens the outer sleeve 2 and the clamping plate 7, the spring 8 increases the buffering property, the clamping plate 7 increases the protection of the inner tube 1, the reinforcing rib 15 increases the internal strength, the inner tube 1 is protected and the strength is increased, the reinforcing steel bars 16, the reinforcing steel wires 17 and the steel wire mesh layer 19 increase the strength of the inner tube 1, the strength of the oil pipe is improved, the existing oil pipe is prevented from being cracked due to excessive pressure during use, and the strengthening effect is achieved.

[0022] Please refer to Figures 1-7 The outer surface of the inner tube 1 is fixedly connected with a wear-resistant layer 20, the lower surface of the wear-resistant layer 20 is fixedly connected with a fireproof coating 21, the lower surface of the fireproof coating 21 is fixedly connected with a corrosion-resistant layer 22, the material of the wear-resistant layer 20 is nano composite ceramic coating, the material of the corrosion-resistant layer 22 is a three-layer structure, the bottom layer is epoxy powder coating, the middle layer is adhesive, and the outer layer is polyethylene coating. The outer surface of the outer sleeve 2 is fixedly connected with a fixing ring 23, one side of the fixing ring 23 is threadedly connected with a protection rod 24 through a bolt, the outer surface of the protection rod 24 is provided with an anti-skid groove 25, the outer surface of the inner tube 1 is fixedly connected with a connecting ring 26, one side of the connecting ring 26 is fixedly connected with a nut 27, and the inner wall of the connecting ring 26 is provided with a circular hole.

[0023] Specifically, through the cooperation of the inner tube 1 and the outer sleeve 2, through the cooperation of the wear-resistant layer 20, the fireproof coating 21 and the corrosion-resistant layer 22, the overall wear resistance, fireproof performance and corrosion resistance of the oil pipe are improved, the protection rod 24 is provided during use, the protection rod 24 is installed to the outer surface of the outer sleeve 2 through a bolt, the outer sleeve 2 is well protected, wear is avoided, the protection effect is achieved, and the protection purpose is achieved.

[0024] In summary, the overall device in use: in the process of use, when the outer sleeve 2 is subjected to gravity, the outer sleeve 2 applies pressure inward, the movable rod 3 slides in the inner wall of the outer sleeve 2, the sliding block 5 moves downward, the support rod 13 and the sliding block 11 slide in the sliding groove 10, the spring 8 is elastically tightened to the outer sleeve 2 and the clamping plate 7, the spring 8 increases the buffering property, the clamping plate 7 increases the protection of the inner tube 1, the reinforcing rib 15 increases the strength of the inner tube 1, which is convenient for protecting the inner tube 1 and increasing the strength, the reinforcing steel bars 16, the reinforcing steel wires 17 and the steel wire mesh layer 19 are cooperatively arranged to increase the strength of the inner tube 1, improve the strength of the oil pipe, avoid the existing oil pipe from being cracked due to excessive pressure in use, thereby playing a reinforcing role, achieving the reinforcing purpose, through the cooperation of the wear-resistant layer 20, the fireproof coating 21 and the corrosion-resistant layer 22, the wear resistance, fireproof performance and corrosion resistance of the oil pipe are improved, in the process of use, the protective rod 24 can be arranged on the outer surface of the outer sleeve 2 through the bolt, which plays a good protection on the outer sleeve 2 and avoids causing wear and tear, thereby playing a protective role and achieving the protection purpose.

[0025] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection methods, which will not be described here. In the above, when the fixed connection is involved, welding is preferred. Although the embodiments of the application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A ceramic lined pipe with high strength, comprising an inner pipe (1) and an outer jacket (2), characterized in that: The inner tube (1) is located in the outer sleeve (2), the inner wall of the outer sleeve (2) is slidably connected with the movable rod (3), the upper surface of the movable rod (3) is fixedly connected with the limiting plate (4), the outer surface of the movable rod (3) is slidably connected with the sliding block (5), the lower surface of the movable rod (3) is fixedly connected with the inner tube (1), the upper surface of the inner tube (1) is fixedly connected with the plug-in block (6), the outer surface of the movable rod (3) is slidably connected with the clamping plate (7), the inner wall of the clamping plate (7) is provided with the insertion hole, the plug-in block (6) is matched with the insertion hole, the lower surface of the sliding block (5) is fixedly connected with the spring (8), the lower surface of the spring (8) is fixedly connected with the clamping plate (7), one side of the sliding block (5) is fixedly connected with the mounting block (9), the inner wall of the clamping plate (7) is provided with the sliding groove (10), the inner wall of the sliding groove (10) is slidably connected with the sliding block (11), and the upper surface of the sliding block (11) is fixedly connected with the connecting block (12).

2. The ceramic-lined pipe with high strength according to claim 1, characterized in that: The inner wall of the mounting block (9) is rotatably connected with the supporting rod (13), one end, away from the connecting block (12), of the supporting rod (13) is rotatably connected with the mounting block (9), and the spring (8) is located on the outer surface of the movable rod (3).

3. A ceramic lined pipe with high strength according to claim 2, characterized in that: The upper surface of the inner tube (1) is provided with the filler (14), the filler (14) is made of elastic material, the inner tube (1) is fixedly connected with the reinforcing ribs (15), and the reinforcing ribs (15) are evenly distributed in the inner tube (1) in a cross shape.

4. The ceramic-lined pipe with high strength according to claim 3, characterized in that: The inner wall of the inner tube (1) is fixedly connected with the reinforcing steel bars (16), the reinforcing steel bars (16) are arranged on the inner wall of the inner tube (1) in a ring shape, and the upper surface of the inner tube (1) is fixedly connected with the reinforcing steel wires (17).

5. A ceramic lined pipe with high strength according to claim 4, characterized in that: The upper surface of the reinforcing steel wires (17) is fixedly connected with the cushion layer (18), the upper surface of the cushion layer (18) is fixedly connected with the steel wire mesh layer (19), and the steel wire mesh layer (19) is evenly distributed on the upper surface of the cushion layer (18) in a cross shape.

6. A ceramic lined pipe with high strength according to claim 5, characterized in that: The outer surface of the inner tube (1) is fixedly connected with the wear-resistant layer (20), the lower surface of the wear-resistant layer (20) is fixedly connected with the fireproof coating (21), and the lower surface of the fireproof coating (21) is fixedly connected with the anticorrosive layer (22).

7. A ceramic lined pipe with high strength according to claim 6, characterized in that: The material of the wear-resistant layer (20) is nano composite ceramic coating, the material of the anticorrosive layer (22) is a three-layer structure, the bottom layer is epoxy powder coating, the middle layer is adhesive, and the outer layer is polyethylene coating.

8. The ceramic lined pipe with high strength according to claim 1, characterized in that: The outer surface of the outer sleeve (2) is fixedly connected with the fixing ring (23), one side of the fixing ring (23) is threadedly connected with the protection rod (24) through bolts, the outer surface of the protection rod (24) is provided with the anti-skid groove (25), the outer surface of the inner tube (1) is fixedly connected with the connecting ring (26), one side of the connecting ring (26) is fixedly connected with the nut (27), and the inner wall of the connecting ring (26) is provided with the circular hole.

Images