CN102312657A - High-temperature-resistant and wear-resistant hollow rod centering guide - Google Patents
High-temperature-resistant and wear-resistant hollow rod centering guide Download PDFInfo
- Publication number
- CN102312657A CN102312657A CN201110274495A CN201110274495A CN102312657A CN 102312657 A CN102312657 A CN 102312657A CN 201110274495 A CN201110274495 A CN 201110274495A CN 201110274495 A CN201110274495 A CN 201110274495A CN 102312657 A CN102312657 A CN 102312657A
- Authority
- CN
- China
- Prior art keywords
- wear
- resistant
- peripheral surface
- centering
- centering sleeve
- 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.)
- Pending
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a high-temperature-resistant and wear-resistant hollow rod centering guide, which comprises a centering guide body and a centering sleeve arranged on the centering guide body, wherein a metal framework is arranged between the inner peripheral surface and the outer peripheral surface of the centering sleeve, and the inner peripheral surface of the centering sleeve is provided with a wear-resistant ring. The high-temperature-resistant and wear-resistant hollow rod centering guide has the advantages that the metal framework is arranged between the inner peripheral surface and the outer peripheral surface of the centering sleeve, and the centering sleeve forms the forceful support, so the centering sleeve cannot be fatigued and weak or generate deformation phenomena when continuously working under the condition of high temperature being 80 to 150 DEG C. Simultaneously, the inner wall surface of the centering sleeve is provided with the wear-resistant ring, the wear-resistant performance of the centering sleeve is greatly enhanced, and the service life of the centering sleeve is prolonged.
Description
Technical field
The present invention relates to oil field equipment, be specifically related to the centralizer on the down-hole oil production hollow stem of oil field.
Background technology
In China's field produces well, about 80 ﹪ use oil pumping machine oil pumping, as far as the sucker rod in underground work, all will establish centralizer, to guarantee the straightness accuracy of sucker rod.The centralizer of hollow rod by centralizer body, be located at the box cupling at centralizer body two ends, and the supporting positive cover of being located at centralizer body middle part constitutes, supporting positive cover wherein generally adopts nylon or polythene material to process; Because downhole temperature generally all at 80-150 ℃, not only needs supporting positive cover to possess the performance of not deformation at high temperature, and needs supporting positive cover to possess anti-wear performance (in operation process; The supporting positive cover outer peripheral face will produce friction with tube inner wall; Inner peripheral surface will produce friction with centralizer body), the supporting positive cover with nylon or polythene material are processed obviously can not satisfy instructions for use; Therefore; In use, the supporting positive cover distortion takes place, or the situation that supporting positive cover is worn, causes normally to use takes place through regular meeting.
Summary of the invention
The technical problem that the present invention will solve provides a kind of high temperature resistant, wear-resisting hollow stem supporting positive cover, overcomes the deficiency that prior art exists.
The present invention realizes through following technical scheme:
A kind of high temperature resistant, wear-resisting hollow stem centralizer comprises centralizer body and the supporting positive cover on it is set that be provided with metallic framework between the inner peripheral surface of said supporting positive cover and the outer peripheral face, the inner peripheral surface of supporting positive cover is provided with wear ring.
The further improvement project of the present invention is that said metallic framework is metal net shaped skeleton.
The present invention further improvement project is, the inner peripheral surface of supporting positive cover is provided with groove, and said wear ring is embedded in the groove.
The present invention compared with prior art has following obvious advantage:
One, the present invention is provided with metallic framework between the inner peripheral surface of supporting positive cover and outer peripheral face, and supporting positive cover is formed strong support, and therefore, even continuous operation under 80-150 ℃ of high-temperature condition, supporting positive cover can be not weak yet, phenomenon can not deform.
Two, the present invention has increased the anti-wear performance of supporting positive cover greatly owing to the internal face at supporting positive cover is provided with wear ring, has prolonged the application life of supporting positive cover.
Description of drawings
Fig. 1 is the axial cross-sectional schematic of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes centralizer body 2 and the supporting positive cover 3 on it is set, also comprise the box cupling 1 that is arranged at the supporting positive cover two ends.
Still as shown in Figure 1, be provided with metallic framework 4 between the inner peripheral surface of supporting positive cover and the outer peripheral face, said metallic framework 4 is metal net shaped skeleton.The inner peripheral surface of supporting positive cover is provided with three circle grooves, is embedded with wear ring 5 in the groove.
Claims (3)
1. high temperature resistant, a wear-resisting hollow stem centralizer comprises centralizer body and the supporting positive cover on it is set, and it is characterized in that: be provided with metallic framework between the inner peripheral surface of said supporting positive cover and the outer peripheral face, the inner peripheral surface of supporting positive cover is provided with wear ring.
2. a kind of high temperature resistant, wear-resisting hollow stem centralizer as claimed in claim 1, it is characterized in that: said metallic framework is metal net shaped skeleton.
3. a kind of high temperature resistant, wear-resisting hollow stem centralizer as claimed in claim 1, it is characterized in that: the inner peripheral surface of supporting positive cover is provided with groove, and said wear ring is embedded in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274495A CN102312657A (en) | 2011-09-16 | 2011-09-16 | High-temperature-resistant and wear-resistant hollow rod centering guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274495A CN102312657A (en) | 2011-09-16 | 2011-09-16 | High-temperature-resistant and wear-resistant hollow rod centering guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102312657A true CN102312657A (en) | 2012-01-11 |
Family
ID=45426188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110274495A Pending CN102312657A (en) | 2011-09-16 | 2011-09-16 | High-temperature-resistant and wear-resistant hollow rod centering guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102312657A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703715A (en) * | 2017-03-06 | 2017-05-24 | 招远市鲁鑫石油工具有限公司 | Self-block type pumping rod centering device |
| CN113756729A (en) * | 2021-11-01 | 2021-12-07 | 南通市华业石油机械有限公司 | Bead string type sucker rod abrasion-proof centralizer |
-
2011
- 2011-09-16 CN CN201110274495A patent/CN102312657A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703715A (en) * | 2017-03-06 | 2017-05-24 | 招远市鲁鑫石油工具有限公司 | Self-block type pumping rod centering device |
| CN113756729A (en) * | 2021-11-01 | 2021-12-07 | 南通市华业石油机械有限公司 | Bead string type sucker rod abrasion-proof centralizer |
| CN113756729B (en) * | 2021-11-01 | 2024-05-07 | 南通市华业石油机械有限公司 | Bead-type sucker rod wear-resistant centralizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204553520U (en) | A kind of multidiameter shaft | |
| CN202325298U (en) | Screw pump sucker rod wear-resisting centering device | |
| CN102312657A (en) | High-temperature-resistant and wear-resistant hollow rod centering guide | |
| CN203939860U (en) | The Combined bottom bearing device of pressed boiler | |
| CN203009203U (en) | Erosion resistant durable ceramic pump | |
| CN202300227U (en) | High-temperature-resistance and wear-resistance hollow rod centering device | |
| CN204371131U (en) | Modified hollow sucker rod centralizer | |
| CN103334704B (en) | Can rotation can to revolve round the sun tumbling-type Anti-eccentric wear coupling of sucker rod | |
| CN202326198U (en) | Cylinder sleeve for mud pump | |
| CN208380522U (en) | A kind of righting anti-abrasion sucker rod | |
| CN207004470U (en) | A kind of preventer of eccentric abrasion prevention formula | |
| RU2533280C1 (en) | Sucker-rod pump with short plunger | |
| CN202510043U (en) | Downhole oil production device with non-metallic sucker rod | |
| CN202039791U (en) | Built-in fixed sucker rod centralizer | |
| CN204326988U (en) | The hollow resistance to ground rods of oil exploitation | |
| CN105401609B (en) | The lower bushing of structure optimization on a kind of hydraulic breaking hammer | |
| CN105317647A (en) | Ceramic pump | |
| CN204253356U (en) | New-type mortar pump liner | |
| CN202745732U (en) | Low friction resistance sucker rod centralizer | |
| CN103696945A (en) | Crosshead of natural gas compressor | |
| CN202300228U (en) | Anti-falling centering device | |
| CN203430435U (en) | Rolling type sucker rod eccentric abrasion resistant coupling capable of rotation and revolution | |
| CN203891792U (en) | Abrasion-resistant centralizer structure of sucker rod of oil well | |
| CN203822183U (en) | Rotary abrasion resistant coupling of hollow sucker rod | |
| CN204985341U (en) | Novel cylindrical roller bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |