CN201943593U - Double layer hollow sucker rod - Google Patents
Double layer hollow sucker rod Download PDFInfo
- Publication number
- CN201943593U CN201943593U CN2010206507286U CN201020650728U CN201943593U CN 201943593 U CN201943593 U CN 201943593U CN 2010206507286 U CN2010206507286 U CN 2010206507286U CN 201020650728 U CN201020650728 U CN 201020650728U CN 201943593 U CN201943593 U CN 201943593U
- Authority
- CN
- China
- Prior art keywords
- hollow
- bar
- ppr
- carbon fiber
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a double layer hollow sucker rod used in oil field. A hollow inner rod is sleeved into a concentric hollow outer rod; a space is defined between the hollow inner rod and the hollow outer rod; the hollow inner rod is made of carbon fiber or PPR glass fibre, or a material synthesized by carbon fiber and PPR glass fibre. The hollow inner rod made of carbon fiber or PPR glass fibre, or the hollow inner rod made of the material synthesized by carbon fiber and PPR glass fibre reduces the weight of the whole sucker rod, and is beneficial to the work of inserting pipe; and the hollow inner rod of that material can resist corrosion and scaling; and prolongs the service life greatly.
Description
Technical field
The utility model relates to the double-layer hollow sucker rod of using in a kind of oil field.
Background technology
The double-layer hollow sucker rod is made up of bar in the sheathed concentric hollow in the inside of hollow outer bar, is formed with the space between bar and the hollow outer bar in the hollow.The material of bar generally all is metal materials in the existing double-layer hollow sucker rod, its hollow outer bar and hollow.Rod guidance causes whole rod weight in the hollow outer bar of metal material and the hollow increases, and is unfavorable for lowering-in operation; And bar is not corrosion-resistant in the hollow of metal material, easily fouling, and shorten application life greatly.
Summary of the invention
The purpose of this utility model provides a kind of double-layer hollow sucker rod, and empty interior pole stock matter is carbon fiber or PPR glass fiber among this double-layer hollow sucker rod, or the Composite of carbon fiber and PPR glass fiber.Bar in the hollow of carbon fiber or PPR glass fiber material, or be the interior bar of hollow of carbon fiber and PPR glass fiber Composite, make whole rod weight light, help lowering-in operation; And bar is corrosion-resistant, less scaling in the hollow of this kind material, and improve application life greatly.
The utility model is a bar in the sheathed concentric hollow in the inside of bar outside hollow, is formed with the space between bar and the hollow outer bar in the hollow, and the material of the interior bar of hollow is carbon fiber or PPR glass fiber, or is the Composite of carbon fiber and PPR glass fiber.
The beneficial effects of the utility model are: bar in the hollow of carbon fiber or PPR glass fiber material, or be the interior bar of hollow of carbon fiber and PPR glass fiber Composite, make whole rod weight light, help lowering-in operation; And bar is corrosion-resistant, less scaling in the hollow of this kind material, and improve application life greatly.
Description of drawings
Fig. 1 is the half section schematic diagram of the utility model embodiment.
The specific embodiment
See also shown in Figure 1, be embodiment of the present utility model, this embodiment is a bar 6 in the sheathed concentric hollow in the inside of bar 5 outside hollow, be formed with space 9 between bar 6 and the hollow outer bar 5 in the hollow, bar 6 materials are carbon fiber or PPR glass fiber in the hollow, or are the Composite of carbon fiber and PPR glass fiber.
See also shown in Figure 1 again, one end spiral shell of described hollow outer bar 5 is provided with steel box cupling 7, spiral shell is provided with union 8 between interior bar 6 of the hollow of this end and the hollow outer bar 5, the other end spiral shell of described hollow outer bar 5 is provided with steel box cupling 4, these steel box cupling 4 outer sealing rings 3 that are arranged with, be bolted with union 2 between bar 6 and the steel box cupling 4 in the hollow of this end, the leading portion of bar 6 is arranged with sealing ring 1 in the hollow of this end.Many double-layer hollow sucker rods can interconnect prolongation by syndeton, to satisfy the demand of actual production.
Claims (2)
1. double-layer hollow sucker rod, it is a bar (6) in the sheathed concentric hollow in inside of bar outside hollow (5), be formed with space (9) between bar (6) and the hollow outer bar (5) in the hollow, it is characterized in that: the material of bar (6) is carbon fiber or PPR glass fiber in the hollow.
2. a kind of double-layer hollow sucker rod according to claim 1, it is characterized in that: an end spiral shell of described hollow outer bar (5) is provided with steel box cupling (7), spiral shell is provided with union (8) between interior bar (6) of the hollow of this end and the hollow outer bar (5), the other end spiral shell of described hollow outer bar (5) is provided with steel box cupling (4), the outer sealing ring (3) that is arranged with of this steel box cupling (4), be bolted with union (2) between bar (6) and the steel box cupling (4) in the hollow of this end, the leading portion of bar (6) is arranged with sealing ring (1) in the hollow of this end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206507286U CN201943593U (en) | 2010-12-10 | 2010-12-10 | Double layer hollow sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206507286U CN201943593U (en) | 2010-12-10 | 2010-12-10 | Double layer hollow sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201943593U true CN201943593U (en) | 2011-08-24 |
Family
ID=44470942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206507286U Expired - Fee Related CN201943593U (en) | 2010-12-10 | 2010-12-10 | Double layer hollow sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201943593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233685A (en) * | 2013-04-18 | 2013-08-07 | 江克坚 | Interlayer oil pipe of rodless reciprocating oil pumping system |
| CN104790879A (en) * | 2015-04-15 | 2015-07-22 | 王占峰 | Carbon fiber composite heating rod |
-
2010
- 2010-12-10 CN CN2010206507286U patent/CN201943593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233685A (en) * | 2013-04-18 | 2013-08-07 | 江克坚 | Interlayer oil pipe of rodless reciprocating oil pumping system |
| CN104790879A (en) * | 2015-04-15 | 2015-07-22 | 王占峰 | Carbon fiber composite heating rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |