CN202745727U - Manual combined oil pipe centralizer - Google Patents
Manual combined oil pipe centralizer Download PDFInfo
- Publication number
- CN202745727U CN202745727U CN 201220320997 CN201220320997U CN202745727U CN 202745727 U CN202745727 U CN 202745727U CN 201220320997 CN201220320997 CN 201220320997 CN 201220320997 U CN201220320997 U CN 201220320997U CN 202745727 U CN202745727 U CN 202745727U
- Authority
- CN
- China
- Prior art keywords
- axial
- righting
- oil pipe
- wiper block
- centralizer
- 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
Links
- 238000009434 installation Methods 0.000 abstract description 4
- 239000011324 bead Substances 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 1
- 239000003129 oil well Substances 0.000 description 5
- 210000002445 nipple Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a manual combination formula oil pipe centralizer plays to unload the volume big for solving current oil pipe centralizer, the structure is complicated and the poor scheduling problem of technical reliability designs, this oil pipe centralizer is formed by the meshing in opposite directions of two pieces of rightting that the structure is the same, it is equipped with axial righting circular bead to right a piece outer wall, its axial is partly right the circular bead and is equipped with axial and kowtows cingulum and axial recess, it is equipped with the axial bead to right a piece outer wall both ends, and follow its radial boss of the rectangle and the radial recess that are equipped with interval distribution. After meshing connection, the half-righting shoulders of the two righting blocks are mutually abutted, the axial convex edge of one righting block is clamped in the axial groove of the other righting block, and the axial buckling tooth of the other righting block is clamped in the radial groove of the other righting block. The utility model discloses simple structure, the installation is swift, only can accomplish two clamping connection of righting the piece through manual, low in production cost uses reliably, and is longe-lived, can guarantee that it and sleeve pipe avoid metal wear through righting between two parties to oil pipe, is particularly suitable for frequent borehole operation or undercoating sleeve pipe.
Description
Technical field
The utility model relates to a kind of manual Combined oil centralizer, belongs to flow string kit technical field.
Background technology
In the oilfield process, sleeve pipe and oil pipe and annex thereof connect and form the most important flow string structure of oil well, keep necessary annular clearance to guarantee the normal safe and reliable work of oil pumping system between oil pipe and the sleeve pipe.At present based on protection of the environment, economize on resources and provide the factor such as development benefit to consider, the straight well well spacing amount of Oilfield using reduces, and adopts the oil well increasing proportion of cluster well group exploitation, namely at many mouthfuls of oil wells of same well layout.Inclined shaft production can cause oil pipe and sleeve pipe mutually to rub, and damages tubing and casing.Along with the exploitation of oil well, the water content of oil well liquid-producing increases, and the fluid media (medium) in the pit shaft is to the corrosion aggravation of tubing and casing, cause the tubing and casing lost of life, tubing string is changed frequent, and upkeep operation is increased, affect development benefit, then loss is larger if cased perforated forms the cover damage.
The following problem of existing tubing centrilizer ubiquity: the form dependence tubing coupling with tubing nipple forms fixedly centralizer usually, this way has increased the workload of oil discharge pipe easily, underground construction is difficult to cooperate, and can directly throw away centralizer during well workover, is difficult for management supervision.The design of these roller types or rotary stabilizer is also comparatively complicated, and expense is high, and engineering reliability is poor.
Summary of the invention
The purpose of this utility model is to provide a kind of manual Combined oil centralizer, and this centralizer structure is simple and easy, and is easy for installation, economical and practical.
Concrete technical scheme of the present utility model is as follows:
Be provided with axial righting shoulder in the middle of the semi-cylindrical shaped wiper block outer wall, wiper block first half outer wall two ends are provided with axial half righting shoulder, and axial half righting shoulder inwall is provided with axial buckle teeth and axial notch.Wiper block Lower Half outer wall two ends are provided with axial fin, and fin is provided with rectangle spaced apart radially boss and radial groove vertically;
This manual Combined oil centralizer is meshed in opposite directions by two identical wiper blocks of structure and forms, after being connected with a joggle, the mutual apical grafting of half righting shoulder of two wiper blocks, the axial fin of one wiper block is stuck in the axial notch of another wiper block, and the axial buckle teeth of a wiper block is stuck in the radial groove of another wiper block.
The utility model is simple in structure, easy to use, quick for installation, only connect by the screens that manually can finish two wiper blocks, the tubing centrilizer that ingenious composition is complete, save tubing nipple or joint, cost of production is low, makes things convenient for workover treatment, use reliable, life-span is long, can guarantee that by the righting placed in the middle to oil pipe itself and sleeve pipe avoid galling, and is particularly applicable to frequent underground work or undercoating sleeve pipe.
Description of drawings
Fig. 1 is manual Combined oil centralizer structure schematic diagram.
Fig. 2 is manual Combined oil centralizer wiper block front elevational schematic.
Fig. 3 is manual Combined oil centralizer wiper block schematic top plan view.
Fig. 4 is front elevational schematic after manual Combined oil centralizer wiper block is inverted.
Fig. 5 is schematic top plan view after manual Combined oil centralizer wiper block is inverted.
Fig. 6 is manual Combined oil centralizer wiper block lateral view.
The specific embodiment
Further specify referring to figs. 1 through 6 couples of embodiment of the present utility model:
Embodiment:
Be provided with axial righting shoulder 1 in the middle of the semi-cylindrical shaped wiper block outer wall, wiper block first half outer wall two ends are provided with axial half righting shoulder 5, and axial half righting shoulder, 5 inwalls are provided with axial buckle teeth 2 and axial notch 7.Wiper block Lower Half outer wall two ends are provided with axial fin 6, and fin 6 is provided with rectangle spaced apart radially boss 3 and radial groove 4 vertically.
This manual Combined oil centralizer is meshed in opposite directions by two identical wiper blocks of structure and forms, after being connected with a joggle, the mutual apical grafting of half righting shoulder of two wiper blocks, the axial fin 6 of one wiper block is stuck in the axial notch 7 of another wiper block, and the axial buckle teeth 2 of a wiper block is stuck in the radial groove 4 of another wiper block.
The utility model tubing centrilizer by the axial clicking the teeth of wiper block, radially boss, radial groove, axially fin and axial notch mesh in opposite directions and form, fasten the oil pipe demifacet with a wiper block during installation, oppositely fasten the other demifacet of oil pipe with another piece wiper block again, with two wiper block position axis to staggering, the axial notch of aiming at another wiper block with the axial fin of a wiper block is mobile in opposite directions, until inlay fastening, meanwhile the buckle teeth band of a wiper block is stuck in the radial groove through behind the radially boss of another wiper block, forms the anti-slip type back-off and connects.Be connected with a joggle finish after, the righting shoulder apical grafting of two wiper blocks can avoid moving axially each other slippage together, and axially fin is stuck in the axial notch, can prevent that circumferential and axial move slippage each other, axially righting shoulder and half righting shoulder are then with oil pipe righting placed in the middle.
Claims (1)
1. manual Combined oil centralizer is characterized in that:
Be provided with axial righting shoulder (1) in the middle of the semi-cylindrical shaped wiper block outer wall, wiper block first half outer wall two ends are provided with axial half righting shoulder (5), and axial half righting shoulder (5) inwall is provided with axial buckle teeth (2) and axial notch (7); Wiper block Lower Half outer wall two ends are provided with axial fin (6), and fin (6) is provided with rectangle spaced apart radially boss (3) and radial groove (4) vertically;
This manual Combined oil centralizer is meshed in opposite directions by two identical wiper blocks of structure and forms, after being connected with a joggle, half righting shoulder (5) of two wiper blocks is apical grafting mutually, the axial fin (6) of one wiper block is stuck in the axial notch (7) of another wiper block, and the axial buckle teeth (2) of a wiper block is stuck in the radial groove (4) of another wiper block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320997 CN202745727U (en) | 2012-07-04 | 2012-07-04 | Manual combined oil pipe centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320997 CN202745727U (en) | 2012-07-04 | 2012-07-04 | Manual combined oil pipe centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745727U true CN202745727U (en) | 2013-02-20 |
Family
ID=47705144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320997 Expired - Fee Related CN202745727U (en) | 2012-07-04 | 2012-07-04 | Manual combined oil pipe centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868659A (en) * | 2018-07-10 | 2018-11-23 | 河南理工大学 | Split type coal mine circle stile |
-
2012
- 2012-07-04 CN CN 201220320997 patent/CN202745727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868659A (en) * | 2018-07-10 | 2018-11-23 | 河南理工大学 | Split type coal mine circle stile |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20210704 |