CN201786324U - Stainless steel high-temperature heat preserving and insulating connecting pipe - Google Patents
Stainless steel high-temperature heat preserving and insulating connecting pipe Download PDFInfo
- Publication number
- CN201786324U CN201786324U CN2010205227786U CN201020522778U CN201786324U CN 201786324 U CN201786324 U CN 201786324U CN 2010205227786 U CN2010205227786 U CN 2010205227786U CN 201020522778 U CN201020522778 U CN 201020522778U CN 201786324 U CN201786324 U CN 201786324U
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- stainless steel
- pipe
- heat preserving
- connecting pipe
- insulation layer
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- Expired - Fee Related
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Abstract
The utility model relates to a stainless steel high-temperature heat preserving and insulating connecting pipe applied to a closed circulation heating device of double hollow pumping rods of a shaft. The technical scheme includes that the connecting pipe mainly comprises an upper joint, a stainless steel inner pipe, a heat preserving layer, a stainless steel outer pipe and a lower joint, the upper joint and the lower joint are respectively arranged at the upper end and the lower end of the stainless steel inner pipe, the upper joint is a female fastener, the lower joint is a male fastener with a sealing ring groove, the heat preserving layer is wrapped on the outer wall of the middle of the stainless steel inner pipe, and the stainless steel outer pipe is arranged outside the heat preserving layer. The connecting pipe has the advantages that the connecting pipe can meet higher well condition requirements, can reliably work for a long term in high-temperature and high-pressure environments, avoids peeling, fracture or breakage, expands well selection range of the closed circulation heating device of the double hollow pumping rods of the shaft, is stable in effect, reduces later-stage maintenance, and reduces utilization cost.
Description
One, technical field:
The utility model relates to a kind of heavy crude petroleum hot extractor parts, the stainless steel high temperature thermal insulation tube connector of using in particularly a kind of pit shaft double hollow oil pumping rod closed cycle heater.
Two, background technology:
In thickened oil recovery, all there is certain defective in well wellbore heating process commonly used in using at the scene, pit shaft double hollow oil pumping rod closed cycle heating system particularly, original polymer high-temperature thermal insulation is managed the shortcoming that existence can not superhigh temperature resistant continuously, it is higher that heating-up temperature can not reach, that has reduced the two hollow stem closed cycle heaters of pit shaft selects the well scope, has increased later maintenance, has improved use cost.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of stainless steel high temperature thermal insulation tube connector is provided, and replaces existing plug-in type stainless steel high temperature thermal insulation pipe, high temperature resistant, high pressure, low heat conduction.
Its technical scheme is: mainly be made up of pipe, insulation layer, stainless steel outer tube and lower contact in top connection, the stainless steel, the two ends up and down of pipe are respectively equipped with top connection and the lower contact top connection is a box in described stainless steel, and lower contact is the pin thread that has seal groove; Be enclosed with insulation layer on the middle part outer wall of pipe in the stainless steel, be provided with the stainless steel outer tube, form the thermal insulation body, smooth in appearance, high temperature resistant, high pressure, low heat conduction in the insulation layer outside.
The outer wall of pipe is provided with convex platform and lower convex platform in the above-mentioned stainless steel, and insulation layer and stainless steel outer tube are installed in the groove between convex platform and lower convex platform, has guaranteed intensity and sealing.
Above-mentioned insulation layer adopts nano material heat-insulation and heat-preservation cotton.
The beneficial effects of the utility model are: overcome the shortcoming that the continuous pipe of original polymer high-temperature thermal insulation can not superhigh temperature resistant, can satisfy higher hole condition requirement, can be under high temperature and high pressure environment reliably and with long-term work, do not peel, break or phenomenon of rupture; What enlarged the two hollow stem closed cycle heaters of pit shaft selects the well scope, and effect stability has reduced later maintenance, has reduced use cost.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Among the last figure: pipe 2, insulation layer 3, stainless steel outer tube 4, lower contact 5, convex platform 6 and lower convex platform 7 in top connection 1, the stainless steel.
Five, the specific embodiment:
In conjunction with the accompanying drawings 1, the utility model will be further described:
The utility model mainly by manage 2 in top connection 1, the stainless steel, insulation layer 3, stainless steel outer tube 4 and lower contact 5 form, the two ends up and down of pipe 2 are respectively equipped with top connection 1 and lower contact 5 in described stainless steel, top connection 1 is a box, and lower contact 5 is for having the pin thread of seal groove; Be enclosed with insulation layer 3 on the middle part outer wall of pipe 2 in the stainless steel, be provided with stainless steel outer tube 4 in insulation layer 3 outsides, form the thermal insulation body, above-mentioned insulation layer adopts nano material heat-insulation and heat-preservation cotton.
The outer wall of pipe 2 is provided with convex platform 6 and lower convex platform 7 in the above-mentioned stainless steel, and insulation layer 3 and stainless steel outer tube 4 are installed in the groove between convex platform 6 and lower convex platform 7.
Tube wall constitutes by three layers, is followed successively by from inside to outside, and first floor is a pipe 2 in the stainless steel, and the second layer is that insulation layer is a stainless steel outer tube 4 for 3, the three layers, pipe 2 and stainless steel outer tube 4 in the stainless steel.Be the argon arc welding welding with last lower contact junction, the utility model is the oil special pole, and every long 6 meters, is used to replace existing pit shaft double hollow oil pumping rod closed cycle heater polymer high-temperature thermal insulation to manage continuously, high temperature resistant, high pressure, low heat conduction.
During use, by in well wellbore, being lowered to hollow rod, in hollow rod, be lowered to stainless steel high temperature thermal insulation tube connector again, utilize ground heating and pressurization flow process, realize heat transfer medium closed cycle in two hollow passageway, thereby reach the purpose of heating oil pipe and external hollow sucker rod annular space output liquid.During operation, top connection is a box, and lower contact is that pin thread has seal groove, screwed connection.Topmost be connected with the special four-way of pit shaft double hollow oil pumping rod closed cycle heater, depth of setting is 700-1300m according to decisions such as pump extension and produced liquid in oil well.
Claims (3)
1. stainless steel high temperature thermal insulation tube connector, it is characterized in that: mainly form by pipe (2), insulation layer (3), stainless steel outer tube (4) and lower contact (5) in top connection (1), the stainless steel, the two ends up and down of pipe (2) are respectively equipped with top connection (1) and lower contact (5) in described stainless steel, top connection (1) is a box, and lower contact (5) is for having the pin thread of seal groove; Be enclosed with insulation layer (3) on the middle part outer wall of pipe (2) in the stainless steel, be provided with stainless steel outer tube (4), form the thermal insulation body in insulation layer (3) outside.
2. stainless steel high temperature thermal insulation tube connector according to claim 1, it is characterized in that: the outer wall of pipe (2) is provided with convex platform (6) and lower convex platform (7) in the described stainless steel, and insulation layer (3) and stainless steel outer tube (4) are installed in the groove between convex platform (6) and lower convex platform (7).
3. stainless steel high temperature thermal insulation tube connector according to claim 1 and 2 is characterized in that: described insulation layer (3) adopts nano material heat-insulation and heat-preservation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205227786U CN201786324U (en) | 2010-09-04 | 2010-09-04 | Stainless steel high-temperature heat preserving and insulating connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205227786U CN201786324U (en) | 2010-09-04 | 2010-09-04 | Stainless steel high-temperature heat preserving and insulating connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786324U true CN201786324U (en) | 2011-04-06 |
Family
ID=43818292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205227786U Expired - Fee Related CN201786324U (en) | 2010-09-04 | 2010-09-04 | Stainless steel high-temperature heat preserving and insulating connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786324U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615938A (en) * | 2012-04-11 | 2012-08-01 | 浙江飞云机械有限公司 | Connecting pipe for thermal blowing device |
| CN106121588A (en) * | 2016-08-25 | 2016-11-16 | 山东创佳石油机械制造有限公司 | A kind of heavy oil wells hot water closed cycle adds heat drop adhesive-assembly and puts |
| CN109854208A (en) * | 2019-02-14 | 2019-06-07 | 郑家远 | A kind of glutinous device insulating tube of heavy oil wells hot water closed cycle heating drop |
| CN109931007A (en) * | 2019-04-02 | 2019-06-25 | 曹俊杰 | A kind of double hollow oil pumping rod and its manufacturing method |
-
2010
- 2010-09-04 CN CN2010205227786U patent/CN201786324U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615938A (en) * | 2012-04-11 | 2012-08-01 | 浙江飞云机械有限公司 | Connecting pipe for thermal blowing device |
| CN106121588A (en) * | 2016-08-25 | 2016-11-16 | 山东创佳石油机械制造有限公司 | A kind of heavy oil wells hot water closed cycle adds heat drop adhesive-assembly and puts |
| CN109854208A (en) * | 2019-02-14 | 2019-06-07 | 郑家远 | A kind of glutinous device insulating tube of heavy oil wells hot water closed cycle heating drop |
| CN109931007A (en) * | 2019-04-02 | 2019-06-25 | 曹俊杰 | A kind of double hollow oil pumping rod and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130904 |