CN201531222U - Edge band structure of drilling tool centralizer - Google Patents
Edge band structure of drilling tool centralizer Download PDFInfo
- Publication number
- CN201531222U CN201531222U CN2009201691995U CN200920169199U CN201531222U CN 201531222 U CN201531222 U CN 201531222U CN 2009201691995 U CN2009201691995 U CN 2009201691995U CN 200920169199 U CN200920169199 U CN 200920169199U CN 201531222 U CN201531222 U CN 201531222U
- Authority
- CN
- China
- Prior art keywords
- rib band
- drilling tool
- edge band
- centralizer
- tool 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
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Abstract
The utility model discloses an edge band structure of drilling tool centralizer, which comprises an edge band (1) and a plurality of grooves (2) are formed on the edge band (1). The structure is characterized in that: the depths of the grooves (2) on the lower 1/3 region of the edge band (1) are 11mm-13mm; and the depths of the grooves (2) in other region are 5mm-7mm. By arranging the grooves on the edge band in different depths, the structure of the utility model prolongs the hard alloy block inserted on the section which is worn heaviest; thereby avoids the early drop-off of the hard alloy block on the section which is worn heaviest, effectively prolongs the service life of the whole drilling tool centralizer, and reduces use and maintenance cost.
Description
Technical field
The utility model relates to a kind of rib band structure of drilling tool centralizer.
Background technology
At present helicoid hydraulic motor (a kind of positive displacement mud motor) oil creep into and well workover aspect obtain extensive use, and be used to the operation of creeping into of aspects such as geological prospecting, coal-bed gas exploitation, building pipe construction and defence construction, especially be applied to boring special well.In each parts of helicoid hydraulic motor, centralizer is mainly used in the hold angle work in the borehole track control.Because the most close drill bit of centralizer on the power transmission shaft shell, the drilling fluid of complex chemical composition are under very big pressure, the rib band of quick churn drilling tools centralizer, the irregular borehole wall of while are also at continuous grinding rib band, so wearing and tearing are very fast.In order to improve abrasion resistance, method commonly used is to embed a lot of hard alloy blocks on the outer wall of rib band.But in actual use, the regions wear of the rib band bottom 1/3 of drilling tool centralizer faster, usually serious, the hard alloy blocks of this part wearing and tearing come off, and can not use, and upper area can also continue to use long period of time again.During maintenance, such drilling tool but needs to change whole centralizer, has caused unnecessary waste, has strengthened cost burden.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, a kind of rib band structure of drilling tool centralizer is provided, the rib band structure of this drilling tool centralizer is by being the structure that the degree of depth does not wait with the groove design on the rib band, the hard alloy blocks that the most serious part of wearing and tearing is inlayed is longer, thereby avoided the hard alloy blocks in serious wear zone to come off too early, effectively prolong the application life of whole drilling tool centralizer, reduce and use and maintenance cost.
The purpose of this utility model is achieved through the following technical solutions: a kind of rib band structure of drilling tool centralizer, comprise the rib band, and described rib band is provided with several grooves, and the depth of groove in 1/3 zone, described rib band bottom is 11mm-13mm.
Further, described rib band bottom 1/3 extra-regional depth of groove is 5mm-7mm.
All be embedded with hard alloy blocks in the described groove.
Described groove is arranged on the external surface of rib band.
Described rib band is enclosed within on the axle, and axle is connected with joint.
In sum, the beneficial effects of the utility model are: by being the structure that the degree of depth does not wait with the groove design on the rib band, the hard alloy blocks that the most serious part of wearing and tearing is inlayed is longer, thereby avoided the hard alloy blocks in serious wear zone to come off too early, effectively prolong the application life of whole drilling tool centralizer, reduce and use and maintenance cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a lateral view of the present utility model.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment:
The rib band structure of a kind of drilling tool centralizer as shown in Figure 1, 2 as can be known, the utility model comprises rib band 1, rib band 1 is provided with several grooves 2, rib band 1 is enclosed within on the axle 3, axle 3 is connected with joint 4, all is embedded with hard alloy blocks in the described groove 2.
Because the most close drill bit of drilling tool centralizer on the power transmission shaft shell, the drilling fluid of complex chemical composition is under very big pressure, the rib band 1 of quick churn drilling tools centralizer, the irregular borehole wall is also at continuous grinding rib band 1 simultaneously, therefore wearing and tearing are very fast, particularly the regions wear of rib band 1 bottom 1/3 is faster, and usually this part wearing and tearing is more serious.So mode that the groove 2 in the utility model on the rib band 1 has adopted the degree of depth not wait, with groove 2 depth design in 1/3 zone, rib band 1 bottom is 11mm-13mm, other regional depths are designed to 5mm-7mm, thereby the hard alloy blocks that the most serious part of wearing and tearing is inlayed is longer, make it more durable, avoided centralizer rib band 1 bottom 1/3 the zone since the serious back of wearing and tearing hard alloy blocks come off too early, cause can not be again with and change the phenomenon of whole centralizer.
As mentioned above, just can realize the utility model preferably.
Claims (5)
1. the rib band structure of a drilling tool centralizer comprises rib band (1), and described rib band (1) is provided with several grooves (2), it is characterized in that, groove (2) degree of depth in 1/3 zone, described rib band (1) bottom is 11mm-13mm.
2. the rib band structure of a kind of drilling tool centralizer according to claim 1 is characterized in that, described rib band (1) bottom 1/3 extra-regional groove (2) degree of depth is 5mm-7mm.
3. the rib band structure of a kind of drilling tool centralizer according to claim 1 is characterized in that, described groove all is embedded with hard alloy blocks in (2).
4. according to the rib band structure of each described a kind of drilling tool centralizer in the claim 1 to 3, it is characterized in that described groove (2) is arranged on the external surface of rib band (1).
5. according to the rib band structure of each described a kind of drilling tool centralizer in the claim 1 to 3, it is characterized in that described rib band (1) is enclosed within on the axle (3), axle (3) is connected with joint (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201691995U CN201531222U (en) | 2009-08-19 | 2009-08-19 | Edge band structure of drilling tool centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201691995U CN201531222U (en) | 2009-08-19 | 2009-08-19 | Edge band structure of drilling tool centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531222U true CN201531222U (en) | 2010-07-21 |
Family
ID=42526626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201691995U Expired - Fee Related CN201531222U (en) | 2009-08-19 | 2009-08-19 | Edge band structure of drilling tool centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747111A (en) * | 2013-12-26 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Method for improving grinding efficiency of grind shoe and impregnated grind shoe |
-
2009
- 2009-08-19 CN CN2009201691995U patent/CN201531222U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747111A (en) * | 2013-12-26 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Method for improving grinding efficiency of grind shoe and impregnated grind shoe |
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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: 20100721 Termination date: 20110819 |