CN202483450U - Five-blade polycrystalline diamond compact (PDC) bit - Google Patents
Five-blade polycrystalline diamond compact (PDC) bit Download PDFInfo
- Publication number
- CN202483450U CN202483450U CN2012200719124U CN201220071912U CN202483450U CN 202483450 U CN202483450 U CN 202483450U CN 2012200719124 U CN2012200719124 U CN 2012200719124U CN 201220071912 U CN201220071912 U CN 201220071912U CN 202483450 U CN202483450 U CN 202483450U
- Authority
- CN
- China
- Prior art keywords
- wing
- main cutting
- cutting teeth
- bit
- cutting tooth
- 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
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a five-blade polycrystalline diamond compact (PDC) bit which comprises a bit body. Blades are arranged on a crown portion at the front end of the bit body, twenty-eight main cutting teeth are fixedly installed on the five blades, and eight main cutting teeth, four main cutting teeth, seven main cutting teeth, five main cutting teeth and four main cutting teeth are distributed on the five blades respectively. According to the five-blade PDC bit, the distribution angles of the blades and the distribution of the cutting teeth on the blades are adjusted on the basis of existing five-blade PDC bits, so that the service life of the whole five-blade PDC bit is prolonged, the speed of well drilling is increased, and the usage requirements of people are satisfied.
Description
Technical field
The utility model relates to a kind of five wing PDC drill bits of in the oil and gas well drilling engineering, using.
Background technology
In oil drilling, generally adopt PDC (composite polycrystal-diamond) drill bit.Five wing PDC drill bits of prior art; Being provided with that the distribution angle of wing and the cutting teeth on the wing distribute is unreasonable, functional poor, and the PDC composite sheet is easy to generate cracked and over worn phenomenon; Cause drill bit in operation process, to damage easily; And drilling speed is lower, and effect is bad, influences drillng operation.
The utility model content
The utility model technical problem to be solved provides and a kind ofly can overcome the distribution angle of existing drill bit wing and five wing PDC drill bits of the unreasonable defective of cutting teeth distributed and arranged on the wing.
In order to solve the problems of the technologies described above, the technical scheme content that the utility model adopts is specific as follows:
A kind of five wing PDC drill bits comprise bit body, and the bizet of bit body front end is provided with wing; Be installed with the main cutting tooth on the wing; The quantity of said wing is five, and the quantity of said main cutting tooth is 28, and the quantity that on five wings, distributes respectively is followed successively by 8,4,7,5,4.
Preferably, the bizet central distribution of five wing wound drill bit bodies, distribution angle are respectively 0 °, 79 °, 155 °, 239 °, 295 °.
Preferably, by arranging from the near to the remote with the distance at bizet center, the back rake angle of main cutting tooth is incremented to 25 ° from 15 °.
Preferably, the diameter of wherein a part of main cutting tooth is 13mm, and the diameter of remaining part main cutting tooth is 16 mm.
Preferably, diameter is that the quantity of the main cutting tooth of 13mm is 6, and diameter is that the quantity of the main cutting tooth of 16 mm is 22.
Preferably, by arranging from the near to the remote with the distance at bizet center, the adjacent side of last four main cutting teeth is equipped with back toothrow, totally 15 of the quantity of back toothrow on each wing.
Preferably, toothrow after the adjacent side of last four main cutting teeth is equipped with 3 on each wing.
Preferably, the diameter of said back toothrow is 13mm.
Compared with prior art, the utility model has produced following beneficial effect:
The utility model is on the basis of existing five wing PDC drill bits; Distribution angle and the cutting teeth on the wing of having adjusted wing distribute; Thereby improved the application life of whole five wing PDC drill bits, but also improved the speed of drilling well, satisfied people's user demand.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to describe.
Fig. 1 is the five wing PDC drill bits structural representation of embodiment more preferably of the utility model.
The specific embodiment
As shown in Figure 1, the five wing PDC drill bits of the utility model, it mainly comprises bit body 100, the bizet of bit body front end is provided with wing, is installed with the main cutting tooth on the wing.
The quantity of said wing is five, is respectively wing 101, wing 102, wing 103, wing 104, wing 105.
The bizet central distribution of five wing wound drill bit bodies 100, distribution angle are respectively 0 °, 79 °, 155 °, 239 °, 295 °.
The quantity of said main cutting tooth is 28, and the quantity that on five wings, distributes respectively is followed successively by 8,4,7,5,4.By arranging from the near to the remote with the distance at bizet center; The adjacent side of last four main cutting teeth is equipped with back toothrow 29 on each wing; Totally 15 of the quantity of back toothrow 29; Be specially: toothrow 29 after the adjacent side of last four main cutting teeth is equipped with 3 on each wing, and the diameter of said back toothrow 29 is 13mm.
The main cutting tooth is accordinged to the distance arrangement apart from the bizet centre distance of bit body 100, in the distribution situation on each wing is: be the 1st, 3,5,8,13,18,23,28 main cutting teeth on the wing 101; On the wing 102 the 9th, 14,19,24 main cutting teeth; On the wing 103 the 2nd, 4,6,10,15,20,25 main cutting teeth; On the wing 104 the 7th, 11,16,21,26 main cutting teeth; On the wing 105 the 12nd, 17,22,27 main cutting teeth.
By arranging from the near to the remote with the distance at bizet center, the back rake angle of main cutting tooth is incremented to 25 ° from 15 °.
In the present embodiment, the diameter of wherein a part of main cutting tooth is 13mm, and the diameter of remaining part main cutting tooth is 16 mm, and be specially: diameter is that the quantity of the main cutting tooth of 13mm is 6, and diameter is that the quantity of the main cutting tooth of 16 mm is 22.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of the utility model claim all according to the technical scheme and the design of above description.
Claims (8)
1. wing PDC drill bit; Comprise bit body; The bizet of bit body front end is provided with wing, is installed with the main cutting tooth on the wing, and the quantity of said wing is five; It is characterized in that: the quantity of said main cutting tooth is 28, and the quantity that on five wings, distributes respectively is followed successively by 8,4,7,5,4.
2. five wing PDC drill bits as claimed in claim 1 is characterized in that: the bizet central distribution of five wing wound drill bit bodies, distribution angle are respectively 0 °, 79 °, 155 °, 239 °, 295 °.
3. five wing PDC drill bits as claimed in claim 1 is characterized in that: by arranging from the near to the remote with the distance at bizet center, the back rake angle of main cutting tooth is incremented to 25 ° from 15 °.
4. five wing PDC drill bits as claimed in claim 1, it is characterized in that: the diameter of wherein a part of main cutting tooth is 13mm, the diameter of remaining part main cutting tooth is 16 mm.
5. five wing PDC drill bits as claimed in claim 4 is characterized in that: diameter is that the quantity of the main cutting tooth of 13mm is 6, and diameter is that the quantity of the main cutting tooth of 16 mm is 22.
6. like each described five wing PDC drill bits of claim 1-5, it is characterized in that: by arranging from the near to the remote with the distance at bizet center, the adjacent side of last four main cutting teeth is equipped with back toothrow, totally 15 of the quantity of back toothrow on each wing.
7. five wing PDC drill bits as claimed in claim 6 is characterized in that: toothrow after the adjacent side of last four main cutting teeth is equipped with 3 on each wing.
8. five wing PDC drill bits as claimed in claim 6 is characterized in that: the diameter of said back toothrow is 13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200719124U CN202483450U (en) | 2012-02-29 | 2012-02-29 | Five-blade polycrystalline diamond compact (PDC) bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200719124U CN202483450U (en) | 2012-02-29 | 2012-02-29 | Five-blade polycrystalline diamond compact (PDC) bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483450U true CN202483450U (en) | 2012-10-10 |
Family
ID=46957877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200719124U Expired - Lifetime CN202483450U (en) | 2012-02-29 | 2012-02-29 | Five-blade polycrystalline diamond compact (PDC) bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483450U (en) |
-
2012
- 2012-02-29 CN CN2012200719124U patent/CN202483450U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202388523U (en) | Double-connection scissors | |
| CN202483454U (en) | Six-blade polycrystalline diamond compact (PDC) bit | |
| CN202483450U (en) | Five-blade polycrystalline diamond compact (PDC) bit | |
| CN202483452U (en) | PDC (Polycrystalline Diamond Compact) drill bit | |
| CN202483451U (en) | Eight-blade PDC (Polycrystalline Diamond Compact) drill bit | |
| CN204476282U (en) | A kind of high-performance six wing PDC drill bit | |
| CN203891774U (en) | Five-blade PDC (polycrystalline diamond compact) bit applicable to hard and soft interbedded stratum | |
| CN203383735U (en) | Four-blade steel body diamond drill bit | |
| CN202401973U (en) | Novel seven-blade matrix PDC (Polycrystalline Diamond Compact) drill bit | |
| CN203891773U (en) | High performance six-blade polycrystalline diamond compact (PDC) bit | |
| CN201650127U (en) | Five-blade roughcast PDC drill bit | |
| CN202401971U (en) | Six-blade matrix PDC (polycrystalline diamond compact) bit | |
| CN204024481U (en) | Pointed tooth PDC drill bit | |
| CN201650124U (en) | PDC drill bit with five-blade steel body | |
| CN202401974U (en) | Novel metal-sintering-body PDC (polycrystalline diamond compact) bit with five cutter blades | |
| CN202517605U (en) | Electroforming diamond cutter for picking sapphire ingot | |
| CN201650129U (en) | Steel PDC drill | |
| CN203124803U (en) | Metal hole saw | |
| CN202655706U (en) | Cutting tool for machining stainless steel sill | |
| CN201650128U (en) | Six-blade matrix PDC bit | |
| CN208885192U (en) | A kind of drill bit that point knuckle-tooth wing is spaced apart | |
| CN202399742U (en) | Pencil with refill storage function | |
| CN201650123U (en) | PDC (Polycrystalline Diamond Compact) bit of seven knife wing casing | |
| CN202483453U (en) | Six-blade matrix PDC (Polycrystalline Diamond Compact) drill bit | |
| CN201546725U (en) | Multi-tooth head cutting pick for mining machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |