CN202706925U - Seven-cutter blade steel PDC (Polycrystalline Diamond Compact) drill bit - Google Patents
Seven-cutter blade steel PDC (Polycrystalline Diamond Compact) drill bit Download PDFInfo
- Publication number
- CN202706925U CN202706925U CN 201220341299 CN201220341299U CN202706925U CN 202706925 U CN202706925 U CN 202706925U CN 201220341299 CN201220341299 CN 201220341299 CN 201220341299 U CN201220341299 U CN 201220341299U CN 202706925 U CN202706925 U CN 202706925U
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- Prior art keywords
- wing
- cutter blade
- degree
- drill bit
- main cutting
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- Expired - Lifetime
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Abstract
The utility model relates to a seven-cutter blade steel PDC (Polycrystalline Diamond Compact) drill bit which comprises a drill bit body, 49 main cutting teeth and a first cutter blade, a second cutter blade, a third cutter blade, a fourth cutter blade, a fifth cutter blade, a sixth cutter blade and a seventh cutter blade, wherein the first to seventh cutter blades are arranged on a crown part of the drill bit body; the first to seventh cutter blades are uniformly distributed along the peripheral edge of the crown part of the drill bit body; and 9, 7, 6, 8, 6, 8 and 5 main cutting teeth are respectively arranged on the first cutter blade, the second cutter blade, the third cutter blade, the fourth cutter blade, the fifth cutter blade, the sixth cutter blade and the seventh cutter blade along the radial direction of the crown part of the drill bit body. The seven-cutter blade steel PDC drill bit provided by the utility model is high in mechanical drilling speed and is good in use property.
Description
Technical field
The utility model relates to a kind of seven wing steel body PDC drill bits.
Background technology
In oil drilling, generally adopt PDC(polycrystalline diamond compact bit, composite polycrystal-diamond) drill bit.The PDC drill bit is divided into two kinds of steel body formula and matrix-types according to matrix material, and steel body bit processes by lathe milling machine with structural alloy steel, matrix drill bits with casting tungsten carbide powder copper powder nickel powder by a certain percentage high temperature sintering become.The PDC drill bit of prior art, arranging of the distribution of the distribution angle of wing and the main cutting tooth tooth on the wing is unreasonable, functional poor, the PDC composite sheet easily produces cracked and over worn phenomenon, cause drill bit in operation process, easily to damage, and drilling speed is lower, and effect is bad, affects drillng operation.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of seven wing steel body PDC drill bits, and the distributed architecture of its drill bit wing and main cutting tooth is more reasonable, and functional performance is better.
For achieving the above object, the utility model adopts following technical scheme:
A kind of seven wing steel body PDC drill bits comprise bit body, 49 main cutting teeth and be installed in the first wing on the bizet of bit body, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing, the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing evenly distribute along the circumferential edge of bit body bizet, the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, bizet along bit body on the 6th wing and the 7th wing is radially installed respectively 9,7,6,8,6,8 and 5 main cutting teeth.
The inclination angle of the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing relative level face is respectively 0 degree, 44 degree, 95 degree, 152 degree, 197 degree, 247 degree and 303 degree.
The back rake angle of the main cutting tooth that distributes to the circumferential edge direction from the bizet center on the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing is incremented to 26 degree from 14 degree successively.
The diameter of each main cutting tooth is 19 millimeters.
The beneficial effects of the utility model are as follows:
The wing of above-mentioned seven wing steel body PDC drill bits reasonably is distributed on the drill bit, and the inclination angle of wing and cutting teeth is designed so that a PDC drill bit can drill the stratum of containing hard boulder bed, need not many PDC drill bits, and rate of penetration is fast, and functional performance is good.
Description of drawings
Fig. 1 is the structural representation of the better embodiment of the utility model seven wing steel body PDC drill bits.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described further:
See also Fig. 1, the utility model relates to a kind of seven wing steel body PDC(polycrystalline diamond compact bit, composite polycrystal-diamond) drill bit, it comprises circular bit body 100, be installed in wing 101 to 107 and main cutting tooth 1 to 49 on the bizet of bit body 100.
Wing 101 to 107 evenly distributes along the circumferential edge of bit body 100 bizets, and the inclination angle of wing 101 to 107 relative level faces is respectively 0 degree, 44 degree, 95 degree, 152 degree, 197 degree, 247 degree and 303 degree.
The back rake angle of the main cutting tooth that distributes to the circumferential edge direction from the bizet center on the wing 101 to 107 is incremented to 26 degree from 14 degree successively.
In the present embodiment, the diameter of main cutting tooth 1 to 49 is 19 millimeters.
The wing of above-mentioned seven wing steel body PDC drill bits reasonably is distributed on the drill bit, and the inclination angle of wing and cutting teeth is designed so that a PDC drill bit can drill the stratum of containing hard boulder bed, need not many PDC drill bits, and rate of penetration is fast, and functional performance is good.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection domain of the utility model claim all.
Claims (4)
1. wing steel body PDC drill bit, it is characterized in that: it comprises bit body, 49 main cutting teeth and be installed in the first wing on the bizet of bit body, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing, the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing evenly distribute along the circumferential edge of bit body bizet, the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, bizet along bit body on the 6th wing and the 7th wing is radially installed respectively 9,7,6,8,6,8 and 5 main cutting teeth.
2. seven wing steel body PDC drill bits as claimed in claim 1 is characterized in that: the inclination angle of the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing relative level face is respectively 0 degree, 44 degree, 95 degree, 152 degree, 197 degree, 247 degree and 303 degree.
3. seven wing steel body PDC drill bits as claimed in claim 1 or 2 is characterized in that: the back rake angle of the main cutting tooth that distributes to the circumferential edge direction from the bizet center on the first wing, the second wing, the 3rd wing, the four blade wing, the 5th wing, the 6th wing and the 7th wing is incremented to 26 degree from 14 degree successively.
4. seven wing steel body PDC drill bits as claimed in claim 1, it is characterized in that: the diameter of each main cutting tooth is 19 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341299 CN202706925U (en) | 2012-07-13 | 2012-07-13 | Seven-cutter blade steel PDC (Polycrystalline Diamond Compact) drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341299 CN202706925U (en) | 2012-07-13 | 2012-07-13 | Seven-cutter blade steel PDC (Polycrystalline Diamond Compact) drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202706925U true CN202706925U (en) | 2013-01-30 |
Family
ID=47587234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220341299 Expired - Lifetime CN202706925U (en) | 2012-07-13 | 2012-07-13 | Seven-cutter blade steel PDC (Polycrystalline Diamond Compact) drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202706925U (en) |
-
2012
- 2012-07-13 CN CN 201220341299 patent/CN202706925U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |