CN204591152U - There is the diamond-impregnated bit of cutting function - Google Patents
There is the diamond-impregnated bit of cutting function Download PDFInfo
- Publication number
- CN204591152U CN204591152U CN201420717108.8U CN201420717108U CN204591152U CN 204591152 U CN204591152 U CN 204591152U CN 201420717108 U CN201420717108 U CN 201420717108U CN 204591152 U CN204591152 U CN 204591152U
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- China
- Prior art keywords
- cutting
- cutting teeth
- diamond
- bit
- impregnated
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of diamond-impregnated bit with cutting function in drill bit field.Comprise bit body, and the cutting teeth be arranged on bit body and nozzle, wherein, cutting teeth is made up of diamond and carcass, and the cutting face being positioned at the cutting teeth of neighboring is disposed radially the back rake angle of 10 ~ 30 degree.Cutting teeth shape comprises cylindrical or elliptical cylinder-shape.The beneficial effects of the utility model are: when drill bit works in hard formation in cutting teeth diamond to grind formation rock, the husky mud layer of the most advanced and sophisticated wedging that cutting teeth contacts with stratum when drill bit works in soft formation, namely breaks rock with cutting way thus improves rate of penetration in soft formation.
Description
Technical field
The utility model relates to drill bit field, specifically has the diamond-impregnated bit of cutting function.
Background technology
The drill bit of various material has been there is, as rock bit, PDC drill bit and diamond-impregnated bit at present for different geological conditions.There is sand-mud interbed in the understratum in the many oil fields of China, rock bit and PDC drill bit cannot be used to creep into, therefore in hard, high abrasive stratum, mainly based on diamond-impregnated bit.Traditional diamond-impregnated bit cutting teeth mainly breaks rock with grinding method due to its structure design, but when there is sand-mud interbed, when namely running into soft formation, diamond-impregnated bit does not have aggressiveness, cause that mechanical rate of penetration is slow, drilling depth is few, extend drilling period, add drilling cost.
Utility model content
The purpose of this utility model is not suitable with for solving PDC drill bit in soft or hard interlocks stratum, rock bit drilling depth is few, tradition diamond-impregnated bit in the slow problem of hag interval rate of penetration, provide a kind of in hard formation the broken rock of grinding, in soft formation, shear the diamond-impregnated bit of broken rock.
For achieving the above object, the technical solution of the utility model is:
There is the diamond-impregnated bit of cutting function, comprise bit body, and the cutting teeth be arranged on bit body and nozzle, wherein, cutting teeth forms in carcass by diamond particles is impregnated, and the cutting face of whole cutting teeths is disposed radially the back rake angle of 20 ~ 30 degree.
Cutting teeth shape comprises cylindrical or elliptical cylinder-shape; Adopt hot pressed sintering, the methods such as pressureless sintering are made.
The beneficial effects of the utility model are:
When drill bit works in hard formation, in cutting teeth, diamond is to grind formation rock, and the husky mud layer of the most advanced and sophisticated wedging that cutting teeth contacts with stratum when drill bit works in soft formation, namely breaks rock with cutting way thus improve rate of penetration in soft formation.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Fig. 2 is the utility model partial sectional view schematic diagram.
In figure: 1. bit body, 2. cutting teeth, 3. nozzle, 4. back rake angle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1:
As shown in Figure 1, the utility model is made up of bit body 1, cutting teeth 2, nozzle 3, back rake angle 4.
The utility model nozzle 3 is contained on bit body 1, and cutting teeth 2 is installed on bit body 1, and impregnated in cutting teeth 2 have diamond particles, and cutting teeth 2 has aggressiveness and arranges the back rake angle of 10 degree.
Embodiment 2:
As shown in Figure 1, the utility model is made up of bit body 1, cutting teeth 2, nozzle 3, back rake angle 4.
The utility model nozzle 3 is contained on bit body 1, and cutting teeth 2 is installed on bit body 1, and impregnated in cutting teeth 2 have diamond particles, and cutting teeth 2 has aggressiveness and arranges the back rake angle of 20 degree.
Embodiment 3:
As shown in Figure 1, the utility model is made up of bit body 1, cutting teeth 2, nozzle 3, back rake angle 4.
The utility model nozzle 3 is contained on bit body 1, and cutting teeth 2 is installed on bit body 1, and impregnated in cutting teeth 2 have diamond particles, and cutting teeth 2 has aggressiveness and arranges the back rake angle of 30 degree.
Tested by the Comparison study of above-described embodiment, in the drillng operation that there is sand-mud interbed, when using drill bit of the present utility model to work in soft formation, rate of penetration improves more than 2 times than original, and comprehensive rate of penetration also can improve more than 20%-100%.
Claims (2)
1. there is the diamond-impregnated bit of cutting function, comprise bit body, and the cutting teeth be arranged on bit body and nozzle, wherein, cutting teeth forms in carcass by diamond particles is impregnated, it is characterized in that: the cutting face of whole cutting teeths is disposed radially the back rake angle of 20 ~ 30 degree.
2. there is the diamond-impregnated bit of cutting function as claimed in claim 1, it is characterized in that: cutting teeth comprises impregnated body that is cylindrical or elliptical cylinder-shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420717108.8U CN204591152U (en) | 2014-11-26 | 2014-11-26 | There is the diamond-impregnated bit of cutting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420717108.8U CN204591152U (en) | 2014-11-26 | 2014-11-26 | There is the diamond-impregnated bit of cutting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591152U true CN204591152U (en) | 2015-08-26 |
Family
ID=53927317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420717108.8U Expired - Fee Related CN204591152U (en) | 2014-11-26 | 2014-11-26 | There is the diamond-impregnated bit of cutting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114182810A (en) * | 2020-09-15 | 2022-03-15 | 河北三维普润环保科技有限公司 | Dredging equipment |
-
2014
- 2014-11-26 CN CN201420717108.8U patent/CN204591152U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114182810A (en) * | 2020-09-15 | 2022-03-15 | 河北三维普润环保科技有限公司 | Dredging equipment |
| CN114182810B (en) * | 2020-09-15 | 2024-04-26 | 河北三维普润环保科技有限公司 | Desilting equipment |
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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: 20150826 Termination date: 20211126 |