CN205036301U - A drill bit for directional drilling - Google Patents
A drill bit for directional drilling Download PDFInfo
- Publication number
- CN205036301U CN205036301U CN201520793918.6U CN201520793918U CN205036301U CN 205036301 U CN205036301 U CN 205036301U CN 201520793918 U CN201520793918 U CN 201520793918U CN 205036301 U CN205036301 U CN 205036301U
- Authority
- CN
- China
- Prior art keywords
- wing
- drill bit
- bit body
- bit
- footpath
- 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 - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model discloses a drill bit for directional drilling, including bit body, guarantor footpath piece and screwed joint, the bit body is connected with screwed joint, the crown of bit body is equipped with radially and is ring array's first wing, second wing, third wing, fourth wing, the 5th wing and the 6th wing, and the top of each wing all is equipped with the PDC cutting teeth, and wherein second, fourth, the 6th wing are close to the center of bit body crown, form the chip groove between two adjacent wings, wing shoulder top is for protecting the footpath piece, it is the round platform shape to protect the footpath piece. The utility model discloses a six wings, drill bit can effective wedging stratum, can go on according to the design orbit at the directional drilling in -process, avoid sliding and creep into the scheduling problem, protect the footpath piece and be the round platform shape, protect the inclined plane of footpath piece on the interval be equipped with a plurality of vertical straight flutes, the footpath strip is protected to the insert in vertical straight flute, can effectively protect the drill bit to protect a footpath inclined plane, improves its life.
Description
Technical field
The utility model relates to bit technique field, particularly relates to a kind of drill bit for directed drilling.
Background technology
Well bore is made to bore along the direction designed in advance and track the well-drilling technology reaching target zone, be called directed drilling, the present gauge block for the PDC drill bit of directed drilling is in directional drilling process, because drill bit tilts, described PDC bit gauge protection block afterbody can be installed the borehole wall intermittently, cause producing unstable moment of torsion, easily cause drill bit twisting vibration.And short operation can cause PDC bit gauge protection inclined-plane to wear and tear for a long time, existing PDC bit gauge protection inclined-plane without wearing layer or between carry out Wear-resistant Treatment simply, the inclined-plane of PDC bit gauge protection block easily weares and teares, thus causes drill bit to lose efficacy.If the patent No. is the directional drilling bit shown in " 201520394689.0 ", its gauge is set to staged, is easily stuck in drilling well, and the structure of its wing exists tool-face instability in directed drilling, tool-face controls difficulty, de-pressure, drill bit can not effective wedging stratum, causes the problems such as slipping drilling, can not carry out according to planned course well, affect directed velocity, add the directed drilling time, drilling cost is increased.Therefore, the directional drilling bit designing a kind of wear-resisting, high efficiency, long service life is necessary.
Utility model content
The purpose of this utility model is to solve the shortcoming existed in prior art, and a kind of drill bit for directed drilling proposed.
To achieve these goals, the utility model have employed following technical scheme:
A kind of drill bit for directed drilling, comprise bit body, gauge block and nipple, described bit body is connected with nipple, the bizet of described bit body is provided with the first wing of radial also circular array, second wing, 3rd wing, 4th wing, 5th wing and the 6th wing, the top of each wing is equipped with PDC cutting teeth, wherein second, 4th, 6th wing is near the center of bit body bizet, chip area is formed between adjacent two wings, be gauge block above described wing shoulder, described gauge block is truncated conical shape, described gauge block is less than the cross section near wing one end away from the cross-sectional diameter of wing one end, the inclined-plane of described gauge block is interval with multiple longitudinal straight trough, insert gauge bar in described longitudinal straight trough.
Preferably, the hydrophthalmia be arranged on bit body is provided with in described chip area.
Preferably, the material of described gauge bar is carbide alloy, dimond synneusis or diamond compact.
Preferably, the thickness of described gauge bar is no less than 2mm.
In the utility model; drill bit comprises six wings, and drill bit can effective wedging stratum, can carry out in directed drilling process according to planned course; avoid the problems such as slipping drilling; can carry out according to planned course well, directed velocity is stablized, and gauge block is truncated conical shape; the inclined-plane of gauge block is interval with multiple longitudinal straight trough; insert gauge bar in longitudinal straight trough, can available protecting bit gauge protection block inclined-plane, improves its application life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of drill bit for directed drilling that the utility model proposes;
Fig. 2 is the running schematic diagram of a kind of drill bit for directed drilling that the utility model proposes.
In figure: 1 bit body, 2 gauge blocks, 3 nipples, 4 first wings, 5 second wings, 6 the 3rd wings, 7 the 4th wings, 8 the 5th wings, 9 the 6th wings, 10 chip areas, 11 gauges article, 12 hydrophthalmias, 13PDC cutting teeth.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1-2, a kind of drill bit for directed drilling, comprise bit body 1, gauge block 2 and nipple 3, bit body 1 is connected with nipple 3, the bizet of bit body 1 is provided with the first wing 4 of radial also circular array, second wing 5, 3rd wing 6, 4th wing 7, 5th wing 8 and the 6th wing 9, the top of each wing is equipped with PDC cutting teeth 13, wherein second, 4th, 6th wing is near the center of bit body 1 bizet, chip area 10 is formed between adjacent two wings, it is gauge block 2 above wing shoulder, gauge block 2 is truncated conical shape, gauge block 2 is less than the cross section near wing one end away from the cross-sectional diameter of wing one end, the inclined-plane of gauge block 2 is interval with multiple longitudinal straight trough, insert gauge bar 11 in longitudinal straight trough.
The hydrophthalmia 12 be arranged on bit body 1 is provided with in chip area 10; hydrophthalmia 12 sprays hydrodynamic lubrication drill bit; liquid rinse is pasted onto the particle on drill bit; improve rate of penetration; the material of gauge bar 11 is carbide alloy, dimond synneusis or diamond compact; the thickness of gauge bar 11 is no less than 2mm, available protecting gauge block.
Drill bit comprises six wings; PDC cutting teeth 13 rock cutting; drill bit can effective wedging stratum; can carry out according to planned course in directed drilling process; avoid the problems such as slipping drilling; can carry out according to planned course well; directed velocity is stablized; gauge block 2 is truncated conical shape, the inclined-plane of gauge block 2 is interval with multiple longitudinal straight trough, insert gauge bar 11 in longitudinal straight trough; can available protecting bit gauge protection block 2 inclined-plane; improve its application life, reduce directional drilling resistance, creeping into of protection bit body.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (4)
1. the drill bit for directed drilling, comprise bit body, gauge block and nipple, described bit body is connected with nipple, it is characterized in that, the bizet of described bit body is provided with the first wing of radial also circular array, second wing, 3rd wing, 4th wing, 5th wing and the 6th wing, the top of each wing is equipped with PDC cutting teeth, wherein second, 4th, 6th wing is near the center of bit body bizet, chip area is formed between adjacent two wings, be gauge block above described wing shoulder, described gauge block is truncated conical shape, described gauge block is less than the cross section near wing one end away from the cross-sectional diameter of wing one end, the inclined-plane of described gauge block is interval with multiple longitudinal straight trough, insert gauge bar in described longitudinal straight trough.
2. a kind of drill bit for directed drilling according to claim 1, is characterized in that, be provided with the hydrophthalmia be arranged on bit body in described chip area.
3. a kind of drill bit for directed drilling according to claim 1, is characterized in that, the material of described gauge bar is carbide alloy, dimond synneusis or diamond compact.
4. a kind of drill bit for directed drilling according to claim 3, is characterized in that, the thickness of described gauge bar is no less than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793918.6U CN205036301U (en) | 2015-10-15 | 2015-10-15 | A drill bit for directional drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793918.6U CN205036301U (en) | 2015-10-15 | 2015-10-15 | A drill bit for directional drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036301U true CN205036301U (en) | 2016-02-17 |
Family
ID=55295210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520793918.6U Expired - Fee Related CN205036301U (en) | 2015-10-15 | 2015-10-15 | A drill bit for directional drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036301U (en) |
-
2015
- 2015-10-15 CN CN201520793918.6U patent/CN205036301U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160217 Termination date: 20161015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |