CN2534354Y - Bias wear protecting borehole centralizer - Google Patents
Bias wear protecting borehole centralizer Download PDFInfo
- Publication number
- CN2534354Y CN2534354Y CN 02203199 CN02203199U CN2534354Y CN 2534354 Y CN2534354 Y CN 2534354Y CN 02203199 CN02203199 CN 02203199 CN 02203199 U CN02203199 U CN 02203199U CN 2534354 Y CN2534354 Y CN 2534354Y
- Authority
- CN
- China
- Prior art keywords
- polished rod
- well head
- wear
- lower casing
- packing
- 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 - Lifetime
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Abstract
A bias wear protecting borehole centralizer belongs to a wellhead matching device of pumping well for oil field development which comprises an upper housing 1, a lower housing 2, an upper screw joint 3, a lower screw joint 4, bearings 5,6,7,8 and an installing handle 9. The upper housing 1 is fixedly connected with the lower housing 2. The bearings 5,6,7,8 are fixed in an groove in the upper housing 1 and the lower housing 2 respectively. The bias wear protecting borehole centralizer of the utility model reduces a bias wear of a polished rod and a wellhead blowout prevention box, reduces a wear of a packing and the polished rod, decreases change times of the packing and the polished rod, lowers labor intensity of workers, saves production cost, decreases a wellhead oil leakage phenomenon which is caused by the wear of the packing or the polished rod without being found in time, avoids an environmental pollution, which has a simple structure, an easy processing, a convenient application compared with present devices.
Description
Technical field
The utility model belongs to oil field development pumpingh well well head corollary apparatus, specifically, is anti-eccentric wear well head centralizer.
Background technology
At present, in the oil well of oil pumping exploitation, widespread usage be the well head blowout prevention box set upright of band, its erection device is an eccentric pipe rod structure, regulate the position of pumpingh well polished rod and well head by rotating this device, avoid polished rod and well head, open flow box generation eccentric wear, but this device has the following disadvantages: the one, the workman can't accurately hold regulated quantity when operation, many times do not have to set upright, prevent inclined to one side effect; The 2nd, polished rod and erection device are the East China friction, and frictional force is big, and polished rod and erection device are fragile.
Technology contents
The purpose of this utility model is to provide a kind of employing rolling bearing to set upright oil pumping polish rod, reduces the eccentric wear of it and packing, well head, thereby improves the life-span of oil pumping polish rod and packing, alleviates the anti-eccentric wear well head centralizer of labor strength.
The utility model is achieved in that and comprises shell 1, lower casing 2, last hickey 3, following hickey 4, bearing 5,6,7,8, installation handle 9, last shell 1 is fixedlyed connected with lower casing 2, bearing 5,6,7,8 is individually fixed on the groove in the housing of shell 1, lower casing 2, and the handle 9 of installation is arranged on the lower casing 2.
The utility model also adopts following technical scheme:
Following hickey 4 is arranged on the lower casing 2.
Fluted in last shell 1, the lower casing 2.
This device contour structures is a gyroscope-like.
Bearing 5,6,7,8 relatively evenly distributes, with circular space of inner surface formation of its fixed groove.
Bearing 5,6,7,8 can adopt radial roller bearing.
Advantage of the present utility model is: reduce the eccentric wear of polished rod and well head blowout prevention box, reduce the wearing and tearing of packing and polished rod, reduce packing and polished rod and change number of times, reduce labor strength, save production cost; Reduce packing or polished rod wearing and tearing back owing to finding the untimely well head oil leakage phenomenon that causes, avoid environment pollution, compare, simple in structure, handling ease, suitable convenient with existing apparatus.
Description of drawings
Fig. 1 is a main sectional structure chart of the present utility model;
Fig. 2 is a vertical view of the present utility model.
Concrete enforcement
This device has on the steel, lower casing 1,2, four radial roller bearings 5,6,7,8, on, following hickey 3,4, handle 9 is installed to be formed, four bearings 5,6,7,8 are individually fixed in shell 1 on the steel by four axles, on the groove in the lower casing 2, last shell 1 is fixed into as a whole with lower casing 2 welding, contour structures is gyroscope-like, connect during installation between production tree four-way upper outlet and blowout prevention box, the polished rod body of rod passes the circular space that four metal rolling bearings of centralizer form, this circular space and four-way outlet, blowout prevention box axiality is no more than 1.05mm, radial thrust by rolling bearing is set upright polished rod, make the basic vertical up-or-down movement of polished rod, play centralizing function, and the friction of bearing and polished rod is rolling friction, frictional force is less, can not cause damage to bearing and polished rod substantially.
Claims (7)
1. anti-eccentric wear well head centralizer, comprise shell (1), lower casing (2), last hickey (3), following hickey (4), bearing (5), (6), (7), (8), installation handle (9), it is characterized in that: go up shell (1) and fixedly connected with lower casing (2), bearing (5), (6), (7), (8) are individually fixed on the groove in the housing of shell (1), lower casing (2), and installation handle (9) is arranged on the lower casing (2).
2. anti-eccentric wear well head centralizer according to claim 1 is characterized in that: going up on the shell (1) has last hickey (3).
3. anti-eccentric wear well head centralizer according to claim 1 is characterized in that: following hickey (4) is arranged on the lower casing (2).
4. anti-eccentric wear well head centralizer according to claim 1 is characterized in that: go up in shell (1), the lower casing (2) fluted.
5. anti-eccentric wear well head centralizer according to claim 1, it is characterized in that: this device contour structures is a gyroscope-like.
6. anti-eccentric wear well head centralizer according to claim 1, it is characterized in that: bearing (5), (6), (7), (8) relatively evenly distribute, with circular space of inner surface formation of its fixed groove.
7. anti-eccentric wear well head centralizer according to claim 1, it is characterized in that: radial roller bearing can be adopted in bearing (5), (6), (7), (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203199 CN2534354Y (en) | 2002-02-07 | 2002-02-07 | Bias wear protecting borehole centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203199 CN2534354Y (en) | 2002-02-07 | 2002-02-07 | Bias wear protecting borehole centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534354Y true CN2534354Y (en) | 2003-02-05 |
Family
ID=33685500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02203199 Expired - Lifetime CN2534354Y (en) | 2002-02-07 | 2002-02-07 | Bias wear protecting borehole centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2534354Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265195A (en) * | 2014-08-21 | 2015-01-07 | 航天科工惯性技术有限公司 | Centralizing mechanism for large-discharge-capacity while drilling gyro system |
| CN104806189A (en) * | 2015-03-09 | 2015-07-29 | 中国石油天然气股份有限公司 | Compelled alignment lubrication sealing device of polish rod of pumping unit |
| CN106194056A (en) * | 2016-08-30 | 2016-12-07 | 王仕俊 | A kind of eccentric abrasion prevention seat |
-
2002
- 2002-02-07 CN CN 02203199 patent/CN2534354Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265195A (en) * | 2014-08-21 | 2015-01-07 | 航天科工惯性技术有限公司 | Centralizing mechanism for large-discharge-capacity while drilling gyro system |
| CN104806189A (en) * | 2015-03-09 | 2015-07-29 | 中国石油天然气股份有限公司 | Compelled alignment lubrication sealing device of polish rod of pumping unit |
| CN104806189B (en) * | 2015-03-09 | 2017-08-04 | 中国石油天然气股份有限公司 | A kind of polished rod of pumping well forces righting lubricating and sealing device |
| CN106194056A (en) * | 2016-08-30 | 2016-12-07 | 王仕俊 | A kind of eccentric abrasion prevention seat |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120207 Granted publication date: 20030205 |