CN203961798U - Four blade wing combination tooth polycrystalline diamond compact bit - Google Patents
Four blade wing combination tooth polycrystalline diamond compact bit Download PDFInfo
- Publication number
- CN203961798U CN203961798U CN201420425371.XU CN201420425371U CN203961798U CN 203961798 U CN203961798 U CN 203961798U CN 201420425371 U CN201420425371 U CN 201420425371U CN 203961798 U CN203961798 U CN 203961798U
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- Prior art keywords
- composite polycrystal
- diamond
- diamonds
- pointed
- sword
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- 239000010432 diamond Substances 0.000 title claims abstract description 100
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 claims abstract description 71
- 230000035515 penetration Effects 0.000 abstract description 11
- 238000005553 drilling Methods 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 6
- 102000016938 Catalase Human genes 0.000 abstract description 3
- 108010053835 Catalase Proteins 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model proposes four blade wing combination tooth polycrystalline diamond compact bit.On the spherical drill bit of the semicircle of drill body, extend four equally distributed wings, each wing forms gauge sword, reaming sword and cutting edge by large and small composite polycrystal-diamond and pointed composite polycrystal-diamond.Owing to being provided with the front and back combination of pointed tooth and circular diamond chip, arrange, pointed tooth is playing fractured rock, circular diamond chip cuts in catalase, make stable cutting, cutter tooth condition of work is greatly improved, the in the situation that of pointed odontotripsis, circular diamond chip can carry out cutting task equally, improve the application life of drill bit, guarantee rate of penetration and quality, the design of reaming sword can also improve creep into heart degree, the degree of wear that guarantees each composite polycrystal-diamond is consistent, in sum, this drill bit has raising drilling life of bit, can be good to disposition, the feature that soft or hard ground adaptability is good, favourable promoting the use of.
Description
Technical field
The utility model relates to field drilling field of tool, is specifically related to four blade wing combination tooth polycrystalline diamond compact bit.
Background technology
Polycrystalline diamond compact bit is by steel carcass, tungsten carbide sinter layer and the diamond compact being arranged on tungsten carbide sinter layer form, diamond compact affects the performance of drill bit at the cloth tooth of drill bit and the density diameter of tooth, universal law is low-density multitool wing cloth tooth, low-density cloth tooth is mainly used in harder stratum, oil field, the diamond bit that is applicable to such stratum is generally the above 35-40 of a five wings cutter tooth, because wing is many, resistance is large, in broken ground, rate of penetration is slow, when low-density cloth tooth is running into underground firm hard formation below 3400 meters, creep into and still exist the inadequate rate of penetration of cutter set density slow, single the problem that drilling life of bit is low.
Summary of the invention
In order to overcome the deficiency in background technology, the utility model proposes four blade wing combination tooth polycrystalline diamond compact bit and address the above problem.
The technical solution of the utility model is: four blade wing combination tooth polycrystalline diamond compact bit comprises drill body, on the spherical drill bit of the semicircle of drill body, extend four equally distributed wings, each wing is large by three, five little composite polycrystal-diamonds and five pointed composite polycrystal-diamonds form, wherein by three little composite polycrystal-diamonds, form gauge sword, by three each and every one little composite polycrystal-diamonds, form reaming sword, one of them little composite polycrystal-diamond is that gauge sword and reaming sword share, by three large composite polycrystal-diamonds and five pointed composite polycrystal-diamonds, form cutting edge, the composite polycrystal-diamond excircle configuration of gauge sword is column type, its excircle dimension is drill bit nominal diameter, the profile that the composite polycrystal-diamond of reaming sword forms is conical, the angle a of its tapering bus and gauge sword is 8～10 ° of angles, and the outline that the composite polycrystal-diamond of cutting edge forms and the angle b of center line of bit are 43～46 ° of angles, in the inner side of each reaming sword and cutting edge crossover sites, be provided with a removable nozzle, the inner side at each cutting edge position is provided with a removable nozzle.
onstate and by three large composite polycrystal-diamonds and five pointed composite polycrystal-diamonds, form cutting edge in scheme, five pointed composite polycrystal-diamonds are located at front row, and three large composite polycrystal-diamonds are located at rear row and are at pointed composite polycrystal-diamond interval location.Described pointed composite polycrystal-diamond, Lower Half is cylindrical, and the first half is wedge angle, and the top of wedge angle is polished into fillet.Described pointed composite polycrystal-diamond, the height that its rounded top portion is stretched out at drill bit equates with the height that large composite polycrystal-diamond stretches out.
The utlity model has following beneficial effect: the structure of the large density cloth of four blade wing tooth makes that wing rate of penetration in the process of creeping into is fast and spoil disposal is smooth and easy, wherein, cutting edge plays main cutting task in stratum, when stratum hardness is not high, it is mainly that large composite polycrystal-diamond works that cutting is crept into, because the tapering of reaming sword is very little, the little composite polycrystal-diamond of reaming sword helps out, rate of penetration is fast and stable, when stratum hardness is very high, rate of penetration declines, all composite polycrystal-diamonds all play cutting separately, the effect of reaming and gauge, improve the utilization rate of composite polycrystal-diamond, owing to being provided with the front and back combination of pointed tooth and circular diamond chip, arrange simultaneously, pointed tooth mainly plays the effect of fractured rock when cutting, the circular diamond chip of follow-up cuts on the basis of catalase, make stable cutting, cutter tooth condition of work is greatly improved, simultaneously, the in the situation that of pointed odontotripsis, circular diamond chip can carry out cutting task equally, be equivalent to the application life that twice improves drill bit, guarantee rate of penetration and quality, the design of reaming sword can also improve creep into heart degree, also the degree of wear that has guaranteed each composite polycrystal-diamond is consistent, extend drilling life of bit, in sum, this drill bit has raising drilling life of bit, can be good to disposition, the feature that soft or hard ground adaptability is good, favourable promoting the use of.
accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is part elevation figure of accompanying drawing 1;
Accompanying drawing 3 is elevations of pointed composite polycrystal-diamond.
1-drill body in figure, 2-nozzle, 3-wing, the little composite polycrystal-diamond of 4-, 5-gauge sword, 6-angle a, 7-reaming sword, the large composite polycrystal-diamond of 8-, the pointed composite polycrystal-diamond of 9-, 10-cutting edge, 11-angle b, 12-fillet.
the specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
By Fig. 1 in conjunction with Fig. 2, shown in Fig. 3, four blade wing combination tooth polycrystalline diamond compact bit, comprise drill body 1, on the spherical drill bit of the semicircle of drill body 1, extend four equally distributed wings 3, each wing 3 is large by three, five little composite polycrystal-diamonds 8, 4 and five pointed composite polycrystal-diamonds 9 form, wherein by three little composite polycrystal-diamonds 4, form gauge sword 5, by three little composite polycrystal-diamonds 4, form reaming sword 7, one of them little composite polycrystal-diamond 4 is that gauge sword 5 and reaming sword 7 share, by three large composite polycrystal-diamonds 8 and five pointed composite polycrystal-diamonds 9, form cutting edge 10,
The composite polycrystal-diamond excircle configuration of gauge sword 5 is column type, its excircle dimension is drill bit nominal diameter, the profile that the composite polycrystal-diamond of reaming sword 7 forms is conical, the angle a6 of its tapering bus and gauge sword 5 is 8～10 ° of angles, low-angle reaming sword is conducive to rock stratum to cut in order reaming, and the outline that the composite polycrystal-diamond of cutting edge 10 forms and the angle b11 of center line of bit are 43～46 ° of angles;
In each reaming sword 7 and the inner side of cutting edge 10 crossover sites, be provided with a removable nozzle 2, the inner side at each cutting edge 10 position is provided with a removable nozzle 2.
Described forms cutting edge 10 by three large composite polycrystal-diamonds 8 and five pointed composite polycrystal-diamonds 9, five pointed composite polycrystal-diamonds 9 are located at front row, three large composite polycrystal-diamonds 8 are located at rear row and are at pointed composite polycrystal-diamond 9 interval locations, at front row, pointed diamond chip is by after crushing rock formation, and the circular diamond chip of rear row cuts rock stratum.
Described pointed composite polycrystal-diamond 9, Lower Half is cylindrical, and the first half is wedge angle, and the top of wedge angle is polished into fillet 12, is conducive to extend the application life of diamond chip.
Described pointed composite polycrystal-diamond 9, the height that its rounded top portion is stretched out at drill bit equates with the height that large composite polycrystal-diamond 8 stretches out, makes pointed diamond chip and circular diamond chip uniform stressed and wearing and tearing.
The structure of the large density cloth of four blade wing tooth makes that wing rate of penetration in the process of creeping into is fast and spoil disposal is smooth and easy, wherein, cutting edge plays main cutting task in stratum, when stratum hardness is not high, it is mainly that large composite polycrystal-diamond works that cutting is crept into, because the tapering of reaming sword is very little, the little composite polycrystal-diamond of reaming sword helps out, rate of penetration is fast and stable, when stratum hardness is very high, rate of penetration declines, all composite polycrystal-diamonds all play cutting separately, the effect of reaming and gauge, improve the utilization rate of composite polycrystal-diamond, owing to being provided with the front and back combination of pointed tooth and circular diamond chip, arrange simultaneously, pointed tooth mainly plays the effect of fractured rock when cutting, the circular diamond chip of follow-up cuts on the basis of catalase, make stable cutting, cutter tooth condition of work is greatly improved, simultaneously, the in the situation that of pointed odontotripsis, circular diamond chip can carry out cutting task equally, be equivalent to the application life that twice improves drill bit, guarantee rate of penetration and quality, the design of reaming sword can also improve creep into heart degree, also the degree of wear that has guaranteed each composite polycrystal-diamond is consistent, extend drilling life of bit, in sum, this drill bit has raising drilling life of bit, can be good to disposition, the feature that soft or hard ground adaptability is good, favourable promoting the use of.
Claims (4)
1. a four blade wing combines tooth polycrystalline diamond compact bit, comprise drill body (1), it is characterized in that: on the spherical drill bit of the semicircle of drill body (1), extend four equally distributed wings (3), each wing (3) is large by three, five little composite polycrystal-diamonds (8, 4) and five pointed composite polycrystal-diamonds (9) form, wherein by three little composite polycrystal-diamonds (4), form gauge sword (5), by three little composite polycrystal-diamonds (4), form reaming sword (7), one of them little composite polycrystal-diamond (4) is that gauge sword (5) and reaming sword (7) share, by three large composite polycrystal-diamonds (8) and five pointed composite polycrystal-diamonds (9), form cutting edge (10),
The composite polycrystal-diamond excircle configuration of gauge sword (5) is column type, its excircle dimension is drill bit nominal diameter, the profile that the composite polycrystal-diamond of reaming sword (7) forms is conical, the angle a (6) of its tapering bus and gauge sword (5) is 8～10 ° of angles, and the outline that the composite polycrystal-diamond of cutting edge (10) forms and the angle b (11) of center line of bit are 43～46 ° of angles;
In each reaming sword (7) and the inner side of cutting edge (10) crossover sites, be provided with a removable nozzle (2), the inner side at each cutting edge (10) position is provided with a removable nozzle (2).
2. the four blade wing according to claim 1 combines tooth polycrystalline diamond compact bit, it is characterized in that: described forms cutting edge (10) by three large composite polycrystal-diamonds (8) and five pointed composite polycrystal-diamonds (9), five pointed composite polycrystal-diamonds (9) are located at front row, and three large composite polycrystal-diamonds (8) are located at rear row and are at pointed composite polycrystal-diamond (9) interval location.
3. the four blade wing according to claim 2 combines tooth polycrystalline diamond compact bit, it is characterized in that: described pointed composite polycrystal-diamond (9), Lower Half is cylindrical, and the first half is wedge angle, and the top of wedge angle is polished into fillet (12).
4. the four blade wing according to claim 3 combines tooth polycrystalline diamond compact bit, it is characterized in that: described pointed composite polycrystal-diamond (9), the height that its rounded top portion is stretched out at drill bit equates with the height that large composite polycrystal-diamond (8) stretches out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425371.XU CN203961798U (en) | 2014-07-30 | 2014-07-30 | Four blade wing combination tooth polycrystalline diamond compact bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425371.XU CN203961798U (en) | 2014-07-30 | 2014-07-30 | Four blade wing combination tooth polycrystalline diamond compact bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961798U true CN203961798U (en) | 2014-11-26 |
Family
ID=51922397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420425371.XU Expired - Lifetime CN203961798U (en) | 2014-07-30 | 2014-07-30 | Four blade wing combination tooth polycrystalline diamond compact bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961798U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370212A (en) * | 2015-12-08 | 2016-03-02 | 大庆天瑞机械制造有限公司 | Anti-vortex polycrystalline diamond compact bit |
| CN105525878A (en) * | 2015-12-08 | 2016-04-27 | 大庆天瑞机械制造有限公司 | Five-blade polycrystalline diamond compact bit |
| CN105863516A (en) * | 2016-05-31 | 2016-08-17 | 陕西金刚石油机械有限公司 | Spraying type drill bit of four-cutter-blade embedded polycrystalline compound tooth |
-
2014
- 2014-07-30 CN CN201420425371.XU patent/CN203961798U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370212A (en) * | 2015-12-08 | 2016-03-02 | 大庆天瑞机械制造有限公司 | Anti-vortex polycrystalline diamond compact bit |
| CN105525878A (en) * | 2015-12-08 | 2016-04-27 | 大庆天瑞机械制造有限公司 | Five-blade polycrystalline diamond compact bit |
| CN105525878B (en) * | 2015-12-08 | 2017-09-22 | 大庆天瑞机械制造有限公司 | Five wing polycrystalline diamond compact bits |
| CN105863516A (en) * | 2016-05-31 | 2016-08-17 | 陕西金刚石油机械有限公司 | Spraying type drill bit of four-cutter-blade embedded polycrystalline compound tooth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |