CN208918477U - A kind of petroleum casing pipe of explosion-proof - Google Patents
A kind of petroleum casing pipe of explosion-proof Download PDFInfo
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- CN208918477U CN208918477U CN201821094491.0U CN201821094491U CN208918477U CN 208918477 U CN208918477 U CN 208918477U CN 201821094491 U CN201821094491 U CN 201821094491U CN 208918477 U CN208918477 U CN 208918477U
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- Prior art keywords
- casing pipe
- petroleum casing
- explosion
- outer tube
- arc panel
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Abstract
The utility model relates to petroleum casing pipe technical fields, especially a kind of petroleum casing pipe of explosion-proof, including outer tube and inner tube, the inner wall two sides of the outer tube are symmetrically arranged with fixed block, said inner tube includes that there are four arc panels, and it is located between two arc panels of the same side and is rotatablely connected by shaft, buffer spring is connected between the outer wall of the arc panel and the inner wall of outer tube, the inside of the fixed block offers mounting groove, the inside of the mounting groove is equipped with mounting blocks, and the mounting blocks are cavity structure, the inner cavity of the mounting blocks is slidably connected, and there are two movable plates, two opposite sides of the movable plate are connected with arc panel respectively, the opposite side of two movable plates is connected with elastic string.The structure design of the utility model is reasonable, easy to use, can effectively prevent petroleum casing pipe and integrally bursts, and the service life of petroleum casing pipe is greatly improved, and has powerful practicability.
Description
Technical field
The utility model relates to petroleum casing pipe technical field more particularly to a kind of petroleum casing pipes of explosion-proof.
Background technique
The different types of casing used in oil exploitation process: surface layer petroleum casing pipe-protection drilling well, make its avoid by
Shoaling layer and shallow gas pay pollution, other layer weights of support wellhead equipment and retaining sleeve；Technology petroleum casing pipe-separation different layers
The pressure in face, so that drilling fluid normally circulates and protects production casing, so as to installed in drilling well anti-bursting device, leak-proof device and
Tail pipe；Oil reservoir petroleum casing pipe-exports oil and natural gas in the storage layer under earth's surface.
Existing oil reservoir petroleum casing pipe, during oil transportation, due to the change dramatically of discharge pressure, it is possible to cause
The expansion of part pipeline even bursts, and after pipeline burst, needs to repair the pipeline of explosion in time, and when repairing entirely sets
It is standby to stop working, and its waste time.For this purpose, it is proposed that a kind of petroleum casing pipe of explosion-proof.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of stone of the explosion-proof proposed
Tubing and casing.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of petroleum casing pipe of explosion-proof, including outer tube and inner tube are designed, the inner wall two sides of the outer tube are symmetrically arranged with solid
Determine block, said inner tube includes that there are four arc panels, and are located between two arc panels of the same side and are rotatablely connected by shaft, institute
It states and is connected with buffer spring between the outer wall of arc panel and the inner wall of outer tube, the inside of the fixed block offers mounting groove, institute
The inside for stating mounting groove is equipped with mounting blocks, and the mounting blocks are cavity structure, and the inner cavity of the mounting blocks slidably connects two
A movable plate, two opposite sides of the movable plate are connected with arc panel respectively, opposite one of two movable plates
Side is connected with elastic string.
Preferably, the outside of the outer tube is equipped with corrosion-resistant coating, and the corrosion-resistant coating is zinc coat.
Preferably, the outside of the corrosion-resistant coating is equipped with protective jacket, and the protective jacket is elastometric boot.
Preferably, polytetrafluoroethylene ethylene layer is coated on the inner wall of the arc panel.
Preferably, the movable plate includes the cage plate to match with mounting blocks inner cavity, and the cage plate is cavity structure,
The inner cavity of the cage plate slidably connects movable plate, and the movable plate is fixedly connected far from the side of cage plate with arc panel.
The utility model proposes a kind of explosion-proof petroleum casing pipe, beneficial effect is: the utility model petroleum casing pipe
When the pressure of transfer oil increases, a large amount of petroleum can squeeze rotating to two sides positioned at the same side arc panel, so that buffering elastic
Spring is compressed and is played buffer function, while arc panel will drive movable plate in the movement of the inner cavity of mounting blocks, so that movable plate phase
Mutually separate, so as to the internal diameter of inner tube, so that the pressure reduction of oil transportation, avoids pipe expansion, explosion, petroleum casing pipe is defeated
When sending the pressure recovery of petroleum, arc lower sheet reset is acted in the elastic force of buffer spring, while corrosion-resistant coating can be to avoid outer tube
It is corroded cracked, prevents from splitting, protective jacket can reinforce the protective effect to outer tube.The design of the utility model structure is closed
Reason, it is easy to use, it can effectively prevent petroleum casing pipe and integrally burst, petroleum casing pipe is greatly improved uses the longevity
Life has powerful practicability.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of explosion-proof petroleum casing pipe structural schematic diagram；
Fig. 2 be the utility model proposes a kind of explosion-proof the portion petroleum casing pipe A structure enlargement diagram.
In figure: outer tube 1, inner tube 2, arc panel 3, shaft 4, buffer spring 5, fixed block 6, corrosion-resistant coating 7, protective jacket 8, peace
Tankage 9, mounting blocks 10, movable plate 11, elastic string 12, cage plate 13, movable plate 14.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, the outside of a kind of petroleum casing pipe of explosion-proof, including outer tube 1 and inner tube 2, outer tube 1 is equipped with anticorrosion
Layer 7, corrosion-resistant coating 7 are zinc coat, and the corrosion resistance of outer tube 1 can be enhanced, avoid outer tube 1 from being corroded cracked, prevent
It splits.
The outside of corrosion-resistant coating 7 is equipped with protective jacket 8, and protective jacket 8 is elastometric boot, can be scraped off, add to avoid outer tube 1
By force to the protective effect of outer tube 1, and cost is relatively low.
The inner wall two sides of outer tube 1 are symmetrically arranged with fixed block 6, inner tube 2 include there are four arc panel 3, arc panel 3, shaft 4,
Structure inside fixed block 6 and fixed block 6 has collectively constituted the variable inner tube 2 of internal diameter, is coated on the inner wall of arc panel 3 poly-
Tetrafluoroethene layer can prevent arc panel 3 by corrosion by petroleum, enhance service life.
And be located between two arc panels 3 of the same side and be rotatablely connected by shaft 4, the outer wall of arc panel 3 and outer tube 1
Buffer spring 5 is connected between inner wall, the inside of fixed block 6 offers mounting groove 9, and the inside of mounting groove 9 is equipped with mounting blocks 10,
And mounting blocks 10 are cavity structure, the inner cavity of mounting blocks 10 is slidably connected there are two movable plate 11, and movable plate 11 includes and pacifies
The cage plate 13 that dress 10 inner cavity of block matches, and cage plate 13 is cavity structure, the inner cavity of cage plate 13 slidably connects movable plate 14, living
Side of the movable plate 14 far from cage plate 13 is fixedly connected with arc panel 3, and movable plate 14 can be slided in the inner cavity of cage plate 13, so as to
To increase the slewing area of arc panel 3, so as to the internal diameter of further expansion inner tube 2, the explosion-proof performance of device is enhanced.
The opposite side of two movable plates 11 is connected with arc panel 3 respectively, and the opposite side of two movable plates 11 connects
It is connected to elastic string 12, elastic string 12 can help the reset with arc panel 3.
Working principle: in use, when the pressure of petroleum casing pipe transfer oil increases, a large amount of petroleum, which can squeeze, to be located at together
Side arc panel 3 is rotated to two sides, so that buffer spring 5 is compressed and played buffer function, while arc panel 3 will drive shifting
Movable plate 11 is mobile in the inner cavity of mounting blocks 10, so that movable plate 11 is located remotely from each other, so as to the internal diameter of inner tube 2, so that petroleum
The pressure reduction of conveying avoids pipe expansion, explosion, when the pressure recovery of petroleum casing pipe transfer oil, in the bullet of buffer spring 5
Power acts on arc lower plate 3 and resets, while corrosion-resistant coating 7 can be corroded cracked to avoid outer tube 1, prevent from splitting, protective jacket 8
It can reinforce the protective effect to outer tube 1.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of petroleum casing pipe of explosion-proof, including outer tube (1) and inner tube (2), which is characterized in that the inner wall of the outer tube (1)
Two sides are symmetrically arranged with fixed block (6), and said inner tube (2) includes that there are four arc panel (3), and are located at two arc panels of the same side
(3) it is rotatablely connected between by shaft (4), is connected with buffering elastic between the outer wall of the arc panel (3) and the inner wall of outer tube (1)
The inside of spring (5), the fixed block (6) offers mounting groove (9), and the inside of the mounting groove (9) is equipped with mounting blocks (10), and
The mounting blocks (10) are cavity structure, and the inner cavity of the mounting blocks (10) is slidably connected, and there are two movable plate (11), two institutes
It states the opposite side of movable plate (11) to be connected with arc panel (3) respectively, the opposite side of two movable plates (11) connects
It is connected to elastic string (12).
2. a kind of petroleum casing pipe of explosion-proof according to claim 1, which is characterized in that set on the outside of the outer tube (1)
Have corrosion-resistant coating (7), the corrosion-resistant coating (7) is zinc coat.
3. a kind of petroleum casing pipe of explosion-proof according to claim 2, which is characterized in that outside the corrosion-resistant coating (7)
Side is equipped with protective jacket (8), and the protective jacket (8) is elastometric boot.
4. a kind of petroleum casing pipe of explosion-proof according to claim 1, which is characterized in that the inner wall of the arc panel (3)
On be coated with polytetrafluoroethylene ethylene layer.
5. a kind of petroleum casing pipe of explosion-proof according to claim 1, which is characterized in that the movable plate (11) includes
The cage plate (13) to match with mounting blocks (10) inner cavity, and the cage plate (13) is cavity structure, the inner cavity of the cage plate (13)
It slidably connects movable plate (14), the movable plate (14) is fixedly connected far from the side of cage plate (13) with arc panel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094491.0U CN208918477U (en) | 2018-07-11 | 2018-07-11 | A kind of petroleum casing pipe of explosion-proof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094491.0U CN208918477U (en) | 2018-07-11 | 2018-07-11 | A kind of petroleum casing pipe of explosion-proof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918477U true CN208918477U (en) | 2019-05-31 |
Family
ID=66693966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821094491.0U Active CN208918477U (en) | 2018-07-11 | 2018-07-11 | A kind of petroleum casing pipe of explosion-proof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918477U (en) |
-
2018
- 2018-07-11 CN CN201821094491.0U patent/CN208918477U/en active Active
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