CN203097719U - Self-adaption reamer - Google Patents
Self-adaption reamer Download PDFInfo
- Publication number
- CN203097719U CN203097719U CN 201320054915 CN201320054915U CN203097719U CN 203097719 U CN203097719 U CN 203097719U CN 201320054915 CN201320054915 CN 201320054915 CN 201320054915 U CN201320054915 U CN 201320054915U CN 203097719 U CN203097719 U CN 203097719U
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- CN
- China
- Prior art keywords
- drill bit
- drilling rod
- drilling
- reamer
- side opening
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 230000006978 adaptation Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 abstract 3
- 238000007906 compression Methods 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a self-adaption reamer which comprises a drilling rod. A main drilling bit is arranged at the lower end of the drilling rod, auxiliary drilling bits are arranged on the side edges of the drilling rod, side holes which are not communicated are formed in the side edges of the drilling rod, the auxiliary drilling bits are clamped in the side holes, and compression springs are arranged between the tail portion of the auxiliary drilling bit and the bottoms of the side holes. Preferably, the number of the auxiliary drilling bits, the number of the side holes and the number of the compression springs are all at least two and arranged along the axial direction of the drilling rod, and all the compression springs with elasticity are gradually increased from the bottom to top. The self-adaption reamer has the advantages that only one drilling tool is needed to achieve reaming operation, and the auxiliary drilling bits are not prone to being broken.
Description
Technical field
The present invention relates to the oil drilling tools technical field, especially relate to a kind of self adaptation reamer.
Background technology
In oil exploitation, drilling tool is indispensable.Though this drilling tool is various informative, in the face of comparatively hard ground condition the time,, progressively increases the diameter of this drill bit afterwards again, thereby progressively realize reaming how by use the less drill bit of diameter to get out aperture in advance.Obviously, such mode is comparatively loaded down with trivial details and need to use the drilling tool that has the different drill bit of diameter in a large number.Though, also there is the mode that secondary drill bit is set by drilling rod side to come reaming at drilling tool,, this pair drill bit carries out rigid the contact with the earth, is easy to cause fractureing of this pair drill bit.
Summary of the invention
The purpose of this invention is to provide a kind of self adaptation reamer, it only has the drilling tool of need can realize ream operation, and the secondary drill bit characteristics of frangibility not.
The technical solution adopted in the present invention is: the self adaptation reamer, comprise drilling rod, this drilling rod lower end is provided with main drill bit, avris is provided with secondary drill bit, described drilling rod avris is provided with the side opening of non-perforation, this pair drill chuck and is provided with stage clip between the bottom of afterbody that should the pair drill bit and this side opening in this side opening.
Described secondary drill bit, side opening, stage clip are at least 2 that are provided with along the direction of axis line of this drilling rod, and these all stage clips stage clip that to be elastic force progressively increase according to from bottom to up order.
The present invention compares the advantage that is had with prior art: only need a drilling tool can realize ream operation, and secondary drill bit frangibility not.Self adaptation reamer of the present invention in use, secondary drill bit has the trend to outer displacement, thereby the aperture of this self adaptation reamer institute reaming is progressively increased, and need not other drilling tools.Simultaneously, when the hardness of the earth was excessive, this self adaptation drill bit can not stretch out too much.That is, the extension elongation of this pair drill bit can be adjusted voluntarily according to the hardness of the earth, thus frangibility not.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is that the master of embodiments of the invention looks sectional view.
Among the figure: 10, drilling rod, 11, main drill bit, 12, side opening; 20, secondary drill bit; 30, stage clip.
The specific embodiment
Embodiment, see shown in Figure 1: the self adaptation reamer, comprise drilling rod 10, these drilling rod 10 lower ends are provided with main drill bit 11, avris is provided with secondary drill bit 20.More particularly, these drilling rod 10 avris are provided with the side opening 12 of non-perforation, and this pair drill bit 20 is stuck in this side opening 12.So-called non-perforation refers to that this side opening 12 has the bottom rather than through the both sides of this drilling rod 10.So-called secondary drill bit 20 is stuck in this side opening 12, and the head that refers to this pair drill bit 20 stretches out outside this side opening 12, afterbody is positioned at this side opening 12, and secondary drill bit 20 can not deviate from this side opening 12.Simultaneously, be provided with stage clip 30 between the bottom of the afterbody of this pair drill bit 20 and this side opening 12.Like this, at the beginning of boring, these pair drill bit 20 extension elongations are less, and along with the carrying out of reaming, these pair drill bit 20 extension elongations progressively increase.Simultaneously, when the earth hardness was big, the length that this pair drill bit 20 stretches out can be not long, thus frangibility not.
Optimize, this pair drill bit 20, side opening 12, stage clip 30 are at least 2 that are provided with along the direction of axis line of this drilling rod 10, and the stage clip that progressively increases according to from bottom to up order for elastic force of these all stage clips 30.That is, secondary drill bit 20, the side opening 12 of this moment be a plurality of of correspondence in twos, and along the axis upper and lower settings of drilling rod 10.Like this, along with the carrying out of this self adaptation reaming boring, the pressure of 20 pairs of sidewalls of being holed of secondary drill bit progressively increases, thereby the aperture of reaming progressively increases.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes manual of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (2)
1. self adaptation reamer, comprise drilling rod (10), this drilling rod (10) lower end is provided with main drill bit (11), avris is provided with secondary drill bit (20), it is characterized in that: described drilling rod (10) avris is provided with the side opening (12) of non-perforation, this pair drill bit (20) is stuck in this side opening (12), and is provided with stage clip (30) between the bottom of afterbody that should pair drill bit (20) and this side opening (12).
2. self adaptation reamer according to claim 1, it is characterized in that: described secondary drill bit (20), side opening (12), stage clip (30) are at least 2 that are provided with along the direction of axis line of this drilling rod (10), and the stage clip that progressively increases according to from bottom to up order for elastic force of these all stage clips (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054915 CN203097719U (en) | 2013-01-31 | 2013-01-31 | Self-adaption reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054915 CN203097719U (en) | 2013-01-31 | 2013-01-31 | Self-adaption reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097719U true CN203097719U (en) | 2013-07-31 |
Family
ID=48849129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054915 Expired - Lifetime CN203097719U (en) | 2013-01-31 | 2013-01-31 | Self-adaption reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615196A (en) * | 2013-12-12 | 2014-03-05 | 西南石油大学 | Plunger type significantly-variable-diameter reaming-while-drilling tool |
| CN110685607A (en) * | 2019-11-14 | 2020-01-14 | 重庆国翔新材料有限公司 | Deformation drill bit and drilling machine |
-
2013
- 2013-01-31 CN CN 201320054915 patent/CN203097719U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615196A (en) * | 2013-12-12 | 2014-03-05 | 西南石油大学 | Plunger type significantly-variable-diameter reaming-while-drilling tool |
| CN110685607A (en) * | 2019-11-14 | 2020-01-14 | 重庆国翔新材料有限公司 | Deformation drill bit and drilling machine |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |