CN101551042A - Sealed ceramic lining composite oil tube and manufacturing method thereof - Google Patents
Sealed ceramic lining composite oil tube and manufacturing method thereof Download PDFInfo
- Publication number
- CN101551042A CN101551042A CNA2009100669734A CN200910066973A CN101551042A CN 101551042 A CN101551042 A CN 101551042A CN A2009100669734 A CNA2009100669734 A CN A2009100669734A CN 200910066973 A CN200910066973 A CN 200910066973A CN 101551042 A CN101551042 A CN 101551042A
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- composite oil
- box cupling
- oil pipe
- ceramic liner
- seal ring
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Abstract
A sealed ceramic lining composite oil tube comprises a ceramic lining composite oil tube and a coupling. The invention is characterized in that the external surface in the coupling is installed with a corrosion-resistant boronized layer. The middle part of inner wall of coupling is provided with a groove. An acrylonitrile-butadiene rubber ring is provided in the groove. The acrylonitrile-butadiene rubber ring and the end plane of ceramic lining composite oil tube is closely matched and hermetically sealed. The manufacturing method of the invention comprises the following steps: grooving at the inner part of coupling, cleaning the surface of coupling, boronizing the cleaned grooved coupling, cleaning the boronized coupling, assembling the cleaned boronized coupling and the acrylonitrile-butadiene rubber ring, plating copper on the screw cap of ceramic lining composite oil tube, and assembling the boronized coupling and the ceramic lining composite oil tube. The invention causes that the air tightness and corrosion resistance at the coupling obtain the level of 13Cr stainless steel coupling which is commonly used by prior gas well for replacing the 13Cr stainless steel coupling and reducing the investment of oil tube used in gas well.
Description
Technical field
The invention belongs to production gas technology field, oil field, relate to a kind of ceramic liner composite oil pipe and manufacture method of corrosion-resistant, favorable sealing property.
Background technique
The thread seal performance at oil pick-up tube and box cupling place is the important element that influences in the gas production process, and tubing coupling is the important structure part that is used to connect oil pick-up tube in the gas production machinery.At present, most of gas wells use 13Cr oil pipe and box cupling to be tightly connected, and manufacture cost is than higher, though the performance of ceramic liner composite oil pipe and cost all are suitable for sealing and poor corrosion resistance at the box cupling place than 13Cr oil pipe.
The model utility content
The ceramic liner composite oil pipe and the manufacture method that the purpose of this invention is to provide a kind of low cost of manufacture, corrosion-resistant, favorable sealing property.
For achieving the above object, the invention provides a kind of ceramic liner composite oil pipe of sealing, comprise ceramic liner composite oil pipe, box cupling, it is characterized in that: the box cupling inner and outer surface is provided with corrosion resistant boride layer, have in the middle of the box cupling inwall and rise as high as the banks, be provided with the nitrile rubber seal ring in rising as high as the banks, nitrile rubber seal ring two ends are processed with groove, and the groove drive fit at ceramic liner composite oil pipe end face and nitrile rubber seal ring two ends is tightly connected.
For nitrile rubber seal ring and ceramic liner composite oil pipe end face better are tightly connected, match with ceramic liner composite oil pipe end face chamfering, groove shapes is trapezoidal.
In order to make the nitrile rubber seal ring under squeezed state, the intermediate portion is not outstanding, is processed with groove in the nitrile rubber seal ring, makes it under squeezed state, and intermediate portion and two ends are near same plane.
The method of making the ceramic liner composite oil pipe of sealing comprises the following steps:
1, the inner slot pulling of box cupling:, rise as high as the banks in the position processing that the groove both ends of the surface are equal apart from the homonymy coupling face by lathe;
2, the removing surface of box cupling: the box cupling after the slot pulling is once removed surperficial grease and corrosion through alkali cleaning-washing-pickling-neutralization-water-washing step;
3, the slot pulling box cupling boronising after the cleaning: the box cupling after will clearing up carries out boronising by boronizing technology to be handled;
4, the cleaning of box cupling after the boronising: on lathe, the residual boriding medium on the box cupling inner and outer surface is removed with the wire wheel cutter;
5, the assembling of boronising box cupling and the nitrile rubber seal ring after the cleaning: the nitrile rubber seal ring is manually packed in the rising as high as the banks in the box cupling, do not have resiliently deformable after the nitrile rubber seal ring is assembled;
6, screw thread copper facing: the ceramic liner composite oil pipe threaded end is inserted in the copper plating groove that copper plating bath is housed, by heating stick copper facing;
7, the assembling of boronising box cupling and ceramic liner composite oil pipe: ceramic liner composite oil pipe is threaded with the boronising box cupling, make the end face groove of ceramic liner composite oil pipe end face extruding nitrile rubber seal ring, nitrile rubber seal ring two ends amount of deformation is between 1.5-2.5mm.
The present invention utilizes sealing, corrosion resistance and the elasticity of nitrile rubber seal ring, the nitrile rubber seal ring is inserted in the oil pipe boronising box cupling, therefore this product has the characteristics such as decay resistance, tightness of nitrile rubber and boronizing technology, make the tightness at its box cupling place and the level of the 13Cr stainless steel box cupling that corrosion resistance reaches present gas well widespread usage, replace 13Cr stainless steel box cupling, reduce the investment of gas well oil pipe.
To assemble the back product and be placed on the sandblasting machine, carry out 7 hours sand blast test, unload the nitrile rubber seal ring after the test, find that through observing the seal ring internal diameter is identical with the ceramic liner composite oil pipe internal diameter; The nitrile rubber seal ring is carried out high temperature test: the nitrile rubber seal ring is put into heating cabinet, and 180 ℃ of temperature modulation are incubated 80 hours, through measuring the average stretching rate 2.3% of nitrile rubber ring; Sealing Device after the assembling is carried out pneumatic test, reach 40Mpa and do not lose heart.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of nitrile rubber seal ring.
Embodiment
With reference to Fig. 1, Fig. 2, the present invention includes ceramic liner composite oil pipe 3, box cupling 1, the box cupling inner and outer surface has corrosion resistant boride layer, have in the middle of the box cupling inwall and rise as high as the banks, be provided with nitrile rubber seal ring 2 in rising as high as the banks, nitrile rubber seal ring and ceramic liner composite oil pipe end face drive fit are tightly connected, nitrile rubber seal ring two ends are processed with trapezoidal groove 4, inside is processed with groove 5, the ceramic liner composite oil pipe end face is clamp-oned in the groove at nitrile rubber seal ring two ends, make nitrile rubber sealing ring deformation amount between 1.5-2.5mm, nitrile rubber squeezes the hither plane state with the seal ring inner groovy, thereby reaches sealing effect.
Concrete manufacture method comprises the following step:
1, the inner slot pulling of box cupling:, rise as high as the banks apart from the position processing of homonymy coupling face 46mm in the groove both ends of the surface by lathe;
2, the removing surface of box cupling: the box cupling after the slot pulling is once removed surperficial grease and corrosion through alkali cleaning-washing-pickling-neutralization-water-washing step;
3, the slot pulling box cupling boronising after the cleaning: the box cupling after will clearing up carries out boronising by boronizing technology to be handled;
4, the cleaning of box cupling after the boronising: on lathe, the residual boriding medium on the box cupling inner and outer surface is removed with the wire wheel cutter;
5, the assembling of boronising box cupling and the nitrile rubber seal ring after the cleaning: the nitrile rubber seal ring is manually packed in the rising as high as the banks in the box cupling, do not have resiliently deformable after the nitrile rubber seal ring is assembled;
6, screw thread copper facing: the ceramic liner composite oil pipe threaded end is inserted in the copper plating groove that copper plating bath is housed,, make the temperature of copper plating bath reach 40 degree, copper facing 2 hours by heating stick;
7, the assembling of boronising box cupling and ceramic liner composite oil pipe: pass through thread screw on and-off machine, ceramic liner composite oil pipe is threaded with the boronising box cupling, make the end face groove of ceramic liner composite oil pipe end face extruding nitrile rubber seal ring, nitrile rubber seal ring two ends amount of deformation is between 2.0mm.
Claims (6)
1, a kind of ceramic liner composite oil pipe of sealing, comprise ceramic liner composite oil pipe, box cupling, it is characterized in that: the box cupling inner and outer surface is provided with corrosion resistant boride layer, have in the middle of the box cupling inwall and rise as high as the banks, be provided with the nitrile rubber seal ring in rising as high as the banks, nitrile rubber seal ring two ends are processed with groove, and the groove drive fit at ceramic liner composite oil pipe end face and nitrile rubber seal ring two ends is tightly connected.
2, the ceramic liner composite oil pipe of sealing according to claim 2 is characterized in that: groove shapes is trapezoidal.
3, according to the ceramic liner composite oil pipe of claim 2 or 3 described sealings, it is characterized in that: be processed with groove in the nitrile rubber seal ring.
4, a kind of method of making the ceramic liner composite oil pipe of the described sealing of claim 1 is characterized in that: comprise the following steps:
A, the inner slot pulling of box cupling:, rise as high as the banks in the position processing that the groove both ends of the surface are equal apart from the homonymy coupling face by lathe;
The removing surface of b, box cupling: the box cupling after the slot pulling is once removed surperficial grease and corrosion through alkali cleaning-washing-pickling-neutralization-water-washing step;
Slot pulling box cupling boronising after c, the cleaning: the box cupling after will clearing up carries out boronising by boronizing technology to be handled;
The cleaning of box cupling after d, the boronising: on lathe, the residual boriding medium on the box cupling inner and outer surface is removed with the wire wheel cutter;
Boronising box cupling and nitrile rubber seal ring assembling after e, the cleaning: the nitrile rubber seal ring is manually packed in the rising as high as the banks in the box cupling, do not have resiliently deformable after the nitrile rubber seal ring is assembled;
F, screw thread copper facing: the ceramic liner composite oil pipe threaded end is inserted in the copper plating groove that copper plating bath is housed, by heating stick copper facing;
The assembling of g, boronising box cupling and ceramic liner composite oil pipe: ceramic liner composite oil pipe is threaded with the boronising box cupling, make the end face groove of ceramic liner composite oil pipe end face extruding nitrile rubber seal ring, nitrile rubber seal ring two ends amount of deformation is between 1.5-2.5mm.
5, the method for the ceramic liner composite oil pipe that described manufacturing seals according to claim 4 is characterized in that: the temperature of copper plating bath reaches 40 degree, copper facing 2 hours.
6, the method for the ceramic liner composite oil pipe that described manufacturing seals according to claim 4 is characterized in that: by thread screw on and-off machine, ceramic liner composite oil pipe is threaded with the boronising box cupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100669734A CN101551042B (en) | 2009-05-20 | 2009-05-20 | Sealed ceramic lining composite oil tube and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100669734A CN101551042B (en) | 2009-05-20 | 2009-05-20 | Sealed ceramic lining composite oil tube and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101551042A true CN101551042A (en) | 2009-10-07 |
| CN101551042B CN101551042B (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100669734A Expired - Fee Related CN101551042B (en) | 2009-05-20 | 2009-05-20 | Sealed ceramic lining composite oil tube and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101551042B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844431A (en) * | 2010-05-31 | 2010-09-29 | 河南科技大学 | Method for processing composite pipeline of ceramic macromolecular lining and composite pipeline thereof |
| CN102620067A (en) * | 2012-03-28 | 2012-08-01 | 湖南振辉管业有限公司 | Bidirectional bell and spigot clad pipe based on enhanced steel skeleton and process for producing clad pipe |
| CN103056515A (en) * | 2012-12-26 | 2013-04-24 | 北京康华盛鸿能源科技发展有限公司 | Welding process for transporting alpha type aluminum oxide ceramic lining by oil and gas pipeline |
| CN105351635A (en) * | 2015-08-26 | 2016-02-24 | 杨永利 | Metal-ceramic composite pipe and manufacturing process thereof |
-
2009
- 2009-05-20 CN CN2009100669734A patent/CN101551042B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844431A (en) * | 2010-05-31 | 2010-09-29 | 河南科技大学 | Method for processing composite pipeline of ceramic macromolecular lining and composite pipeline thereof |
| CN101844431B (en) * | 2010-05-31 | 2012-08-29 | 河南科技大学 | Method for processing composite pipeline of ceramic macromolecular lining and composite pipeline thereof |
| CN102620067A (en) * | 2012-03-28 | 2012-08-01 | 湖南振辉管业有限公司 | Bidirectional bell and spigot clad pipe based on enhanced steel skeleton and process for producing clad pipe |
| CN102620067B (en) * | 2012-03-28 | 2014-11-26 | 湖南振辉管业有限公司 | Bidirectional bell and spigot clad pipe based on enhanced steel skeleton and process for producing clad pipe |
| CN103056515A (en) * | 2012-12-26 | 2013-04-24 | 北京康华盛鸿能源科技发展有限公司 | Welding process for transporting alpha type aluminum oxide ceramic lining by oil and gas pipeline |
| CN103056515B (en) * | 2012-12-26 | 2015-09-16 | 天津恩帜科技有限公司 | A kind of welding procedure ceramic-lined for oil and gas pipes conveying alpha-type aluminum oxide |
| CN105351635A (en) * | 2015-08-26 | 2016-02-24 | 杨永利 | Metal-ceramic composite pipe and manufacturing process thereof |
| CN105351635B (en) * | 2015-08-26 | 2023-09-29 | 杨永利 | Metal ceramic composite pipe and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101551042B (en) | 2011-01-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: 138000 No. 1692 North Jinghu Road, Songyuan economic and Technological Development Zone, Songyuan, Jilin Patentee after: Jilin Tiansheng metal ceramic technology Co. Ltd. are Address before: 138000 No. 299 North Jinghu Road, Songyuan economic and Technological Development Zone, Songyuan, Jilin Patentee before: Songyuandaduo Oil Field Supporting Industry Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20180520 |