CN205778558U - Ridged cutting tooth - Google Patents
Ridged cutting tooth Download PDFInfo
- Publication number
- CN205778558U CN205778558U CN201620515078.1U CN201620515078U CN205778558U CN 205778558 U CN205778558 U CN 205778558U CN 201620515078 U CN201620515078 U CN 201620515078U CN 205778558 U CN205778558 U CN 205778558U
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- CN
- China
- Prior art keywords
- cutting tooth
- diamond layer
- crestal culmination
- ridge
- edge
- 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.)
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Abstract
The utility model discloses a kind of ridged cutting tooth, belong to drill bit manufacturing technology field.It includes diamond layer and hard alloy pedestal；Diamond layer is provided with 24 ridge, and diamond layer edge is provided with chamfering, and hard alloy base bottom is provided with locating slot.It is easy that this utility model pierces stratum, and efficiency of breaking rock is high, is effectively improved rate of penetration and reduces bit balling；Directional drilling is conducive to improve tool-face stability；The shock resistance of cutting tooth is strong, improves service life and the drilling depth of drill bit；Cutting tooth can be used for multiple times.
Description
Technical field
This utility model relates to drill bit, especially the accessory of natural petroleum gas field drilling well drill bit, belongs to drill bit manufacture
Technical field.
Background technology
Cutting tooth is the cutting edge that PDC (composite polycrystal-diamond) drill bit is used for breaking rock, and its performance quality determines
The using effect of PDC drill bit.Good cutting tooth performance can improve rate of penetration and the drilling depth of PDC drill bit, shortens shaft building week
Phase, reduce drilling well integrated cost.
The work surface of currently used conventional cutting tooth is planar structure.In drilling process, under the effect of the pressure of the drill, cutting
Tooth pierces stratum, then rotates to scrape along drill axis under the effect of the moment of torsion transmitted at drilling tool and cut stratum.This rock breaking mechanism makes
Obtain conventional cutting tooth, in the soft formation application that comprcssive strength is low, there is the highest speed advantage.But at high hard of comprcssive strength
In the application of stratum, the difficulty that conventional cutting tooth pierces stratum is significantly increased, simultaneously under high speed conditions, and cutting tooth and hard place
What high shock loading produced by layer repeated stock easily caused conventional cutting tooth collapses damage, constrains PDC drill bit at hard place
Application in Ceng.Additionally, in directed drilling is applied, conventional cutting tooth is scraped and is cut through the working mechanism of rock PDC drill bit is born
Higher reaction torque, is easily caused crooked well construction kit face unstability, have impact on PDC drill bit application effect in directed drilling.
Utility model content
For the problems referred to above, this utility model provides a kind of ridged cutting tooth.
This utility model solves its technical problem the technical scheme is that ridged cutting tooth, including diamond layer and
Hard alloy pedestal；Diamond layer is provided with 24 ridge, and diamond layer edge is provided with chamfering, carbide matrix seat bottom
Portion is provided with locating slot.
The beneficial effects of the utility model are, pierce stratum easy, and efficiency of breaking rock is high, is effectively improved rate of penetration and minimizing
Bit balling；Directional drilling is conducive to improve tool-face stability；The shock resistance of cutting tooth is strong, improves drill bit
Service life and drilling depth；Cutting tooth can be used for multiple times.
Accompanying drawing explanation
Fig. 1 is this utility model population structure (the cutting teeth of three ridge) schematic diagram；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is cutting toothing (similar Fig. 1) schematic diagram of three ridge；
Fig. 4 is the cutting toothing schematic diagram of two ridge；
Fig. 5 is the cutting toothing schematic diagram of four ridge；
Fig. 6 is structure (section) schematic diagram higher than crestal culmination centre such as crestal culmination edge；
Fig. 7 is crestal culmination edge structure (section) schematic diagram higher than crestal culmination centre；
Fig. 8 is crestal culmination edge structure (section) schematic diagram less than crestal culmination centre.
Parts and numbering in figure:
1 diamond layer, 2 hard alloy pedestals,
3 ridge, 3-1 crestal culmination edge, 3-2 crestal culmination centre；
4 chamferings, 5 locating slots, 6-crestal culmination curved surface, 7-lateral face.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is further illustrated.
Seeing Fig. 1, ridged cutting tooth, including diamond layer 1 and hard alloy pedestal 2；Diamond layer 1 is provided with 24
Ridge 3, diamond layer 1 edge is provided with chamfering 4, is provided with locating slot 5 bottom hard alloy pedestal 2.
Crestal culmination edge 3-1 is higher than crestal culmination centre 3-2.
Crestal culmination edge 3-1 is less than crestal culmination centre 3-2.
The end face approximation isosceles triangle of ridge 3, it includes crestal culmination curved surface 6 and side that is tangent with it and that downwardly extend
To face 7, as shown in Fig. 2 top.The angle formed between the radius of curvature of crestal culmination curved surface and two lateral faces is the two of ridge
Individual important feature parameter.The stratum that angle the biggest cutting tooth between crestal culmination radius of curvature and lateral face is suitable for is the hardest；Arc top is bent
Angle between rate radius and lateral face is the least, and the aggressivity of cutting tooth is the strongest, and its stratum being suitable for is the softest, as it is shown on figure 3, arc
The angle between top radius of curvature and the lateral face angle less than Fig. 1.
Generally the quantity of ridge is three, and three ridge are around cutting tooth axis radial distribution, mutually
Between angle be 120 °.After cutting tooth uses, in the case of there is no excessive damage, typically can realize three times turning face, thus
Improve the utilization ratio of cutting tooth.According to different needs, the quantity of ridge can be 2 or 4, when ridge is
When 2, angle each other is 180 °, such as Fig. 4.When ridge is 4, angle each other is 90 °, such as Fig. 5.
Ridge structure can apply to the cutting tooth of different-diameter, a diameter of including commonly useCutting tooth；
There is chamfering at the edge of diamond layer, and the size of chamfering has 0.2mm × 45 °, 0.4mm × 45 °, three kinds, 0.5mm × 45 °
Specification, it is therefore an objective to improve Buddha's warrior attendant in the contact area of the power cut on tooth edge and increase diamond and stratum by peptizaiton
The crushing strength of rock layers and severity of grind, to tackle the drilling well needs on different hardness stratum, the biggest the be suitable for stratum of chamfering is more
Firmly, the least the be suitable for stratum of chamfering is the softest；
Locating slot 5 is positioned at the bottom of hard alloy pedestal, and its crestal culmination with ridge 3 is along the radial position phase of cutting tooth
Correspondence, as the reference marker of location during ridged cutting tooth soldering, to guarantee that under duty, crestal culmination position contacts stratum at first,
Play its optimal rock breaking efficiency.
Crestal culmination edge and the crestal culmination centre of ridge are typically contour, such as Fig. 6；Can not also be contour,
I.e. crestal culmination edge higher than crestal culmination centre or crestal culmination edge less than crestal culmination centre, as Fig. 7,8；Crestal culmination limit
Position, edge is applicable to the soft formation that comprcssive strength is low, to obtain higher rate of penetration higher than the ridged teeth in crestal culmination centre；
Crestal culmination edge is applicable to, less than the ridged teeth in crestal culmination centre, the hard low layer that stratum comprcssive strength is high, higher to obtain
Service life.
Claims (3)
1. a ridged cutting tooth, including diamond layer (1) and hard alloy pedestal (2)；It is characterized in that, diamond layer (1)
Being provided with 24 ridge (3), diamond layer (1) edge is provided with chamfering (4), and it is fixed that hard alloy pedestal (2) bottom is provided with
Position groove (5).
Ridged the most according to claim 1 cutting tooth, it is characterised in that crestal culmination edge (3-1) is higher than crestal culmination center
Position (3-2).
Ridged the most according to claim 1 cutting tooth, it is characterised in that crestal culmination edge (3-1) is less than crestal culmination center
Position (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515078.1U CN205778558U (en) | 2016-05-30 | 2016-05-30 | Ridged cutting tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515078.1U CN205778558U (en) | 2016-05-30 | 2016-05-30 | Ridged cutting tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778558U true CN205778558U (en) | 2016-12-07 |
Family
ID=58138353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620515078.1U Active CN205778558U (en) | 2016-05-30 | 2016-05-30 | Ridged cutting tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778558U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761428A (en) * | 2017-03-14 | 2017-05-31 | 河南四方达超硬材料股份有限公司 | One kind is drilled with efficient chip removal preform composite polycrystal-diamond |
| CN107448149A (en) * | 2016-05-30 | 2017-12-08 | 成都百施特金刚石钻头有限公司 | Ridged cutting tooth |
| CN110892129A (en) * | 2017-06-13 | 2020-03-17 | 威达矿业和工业有限责任公司 | Superabrasive tool for earth boring drill bit having multiple convex cutting surfaces |
| WO2020245165A1 (en) * | 2019-06-04 | 2020-12-10 | Element Six (Uk) Limited | A cutting element and methods of making same |
| WO2021158215A1 (en) * | 2020-02-05 | 2021-08-12 | Baker Hughes Oilfield Operations Llc | Cutter geometry utilizing spherical cutouts |
| US11598153B2 (en) | 2018-09-10 | 2023-03-07 | National Oilwell Varco, L.P. | Drill bit cutter elements and drill bits including same |
| US11719050B2 (en) | 2021-06-16 | 2023-08-08 | Baker Hughes Oilfield Operations Llc | Cutting elements for earth-boring tools and related earth-boring tools and methods |
| US11920409B2 (en) | 2022-07-05 | 2024-03-05 | Baker Hughes Oilfield Operations Llc | Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools |
-
2016
- 2016-05-30 CN CN201620515078.1U patent/CN205778558U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448149A (en) * | 2016-05-30 | 2017-12-08 | 成都百施特金刚石钻头有限公司 | Ridged cutting tooth |
| CN106761428A (en) * | 2017-03-14 | 2017-05-31 | 河南四方达超硬材料股份有限公司 | One kind is drilled with efficient chip removal preform composite polycrystal-diamond |
| CN106761428B (en) * | 2017-03-14 | 2019-04-23 | 河南四方达超硬材料股份有限公司 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
| CN110892129A (en) * | 2017-06-13 | 2020-03-17 | 威达矿业和工业有限责任公司 | Superabrasive tool for earth boring drill bit having multiple convex cutting surfaces |
| US11060356B2 (en) | 2017-06-13 | 2021-07-13 | Varel International Ind., L.L.C. | Superabrasive cutters for earth boring bits with multiple raised cutting surfaces |
| US11598153B2 (en) | 2018-09-10 | 2023-03-07 | National Oilwell Varco, L.P. | Drill bit cutter elements and drill bits including same |
| WO2020245165A1 (en) * | 2019-06-04 | 2020-12-10 | Element Six (Uk) Limited | A cutting element and methods of making same |
| GB2587456A (en) * | 2019-06-04 | 2021-03-31 | Element Six Uk Ltd | A cutting element and methods of making same |
| WO2021158215A1 (en) * | 2020-02-05 | 2021-08-12 | Baker Hughes Oilfield Operations Llc | Cutter geometry utilizing spherical cutouts |
| US20230064436A1 (en) * | 2020-02-05 | 2023-03-02 | Baker Hughes Oilfield Operations Llc | Cutter geometry utilizing spherical cutouts |
| US11719050B2 (en) | 2021-06-16 | 2023-08-08 | Baker Hughes Oilfield Operations Llc | Cutting elements for earth-boring tools and related earth-boring tools and methods |
| US11920409B2 (en) | 2022-07-05 | 2024-03-05 | Baker Hughes Oilfield Operations Llc | Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Zhipeng Inventor after: Bi Lei Inventor after: Wang Ping Inventor after: Chen Lantao Inventor after: Chen Xiaoyong Inventor after: Deng Jianming Inventor after: Liu Xiaogang Inventor after: Ma Yingwen Inventor before: Liu Zhipeng Inventor before: Bi Lei Inventor before: Wang Ping Inventor before: Chen Lantao Inventor before: Chen Xiaoyong |