CN203097745U - Long-life petroleum drilling tool - Google Patents
Long-life petroleum drilling tool Download PDFInfo
- Publication number
- CN203097745U CN203097745U CN 201320055087 CN201320055087U CN203097745U CN 203097745 U CN203097745 U CN 203097745U CN 201320055087 CN201320055087 CN 201320055087 CN 201320055087 U CN201320055087 U CN 201320055087U CN 203097745 U CN203097745 U CN 203097745U
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- Prior art keywords
- long
- life
- drilling rod
- drill
- drilling tool
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Abstract
The utility model discloses a long-life petroleum drilling tool which comprises a drill collar, a drill bit and a drill pipe connecting the drill collar and the drill bit, and a protective cover is sleeved outside the drill pipe in a rotary mode. After optimization, at least two bearings are arranged between the protective cover and the drill pipe, and the distance between every two adjacent bearings is not more than 100cm. The long-life petroleum drilling tool has the advantages that the drill pipe is not prone to damage.
Description
Technical field
The present invention relates to the oil exploitation technical field of tools, especially relate to a kind of long-life oil drilling tools.
Background technology
Usually, oil drilling tools comprises drill collar, drill bit and the drilling rod that connects this drill collar and drill bit.Wherein, the drill bit cost is higher, as other positions of this drilling tool before not wearing and tearing at this drill bit, occurs damaging such as drilling rod, then can cause unnecessary loss.
Summary of the invention
The purpose of this invention is to provide a kind of long-life oil drilling tools, it has the non-damageable characteristics of its drilling rod.
The technical solution adopted in the present invention is: the long-life oil drilling tools, comprise drill collar, drill bit and the drilling rod that connects this drill collar and drill bit, described drilling rod outer rotatable be with sheath.
Be provided with at least 2 bearings between described sheath and this drilling rod.
Distance between the described adjacent bearing is not more than 100cm.
Distance between the described adjacent bearing is 50cm.
The present invention compares the advantage that is had with prior art: drilling rod is not fragile.Long-life oil drilling tools of the present invention is by the mode at the outer setting sheath of the drilling rod that is easy to damage, the rate of wear of effectively having slowed down this drilling rod.Simultaneously, this sheath helps to keep drilling rod to have glacing flatness preferably, has further slowed down the rate of decay of this drilling rod.
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: 11, drill collar, 12, drilling rod, 13, drill bit; 20, sheath; 30, bearing.
The specific embodiment
Embodiment, see shown in Figure 1: the long-life oil drilling tools comprises drill collar 11, drill bit 13 and the drilling rod 12 that connects this drill collar 11 and drill bit 13.Wherein, the length of this drilling rod 12 is the longest, thereby very easily damages because of wearing and tearing and becoming curved.For this reason, these drilling rod 12 outer rotatable is with sheath 20.Wherein, rotatable mode can adopt the modes such as outside that are enclosed within this drilling rod 12 of these sheath 20 matched in clearance.Like this, this sheath 20 has not only been protected the surface of this drilling rod 12, and its rate of wear is reduced, and can reduce the probability that bending appears in this drilling rod 12.
Optimize, be provided with at least 2 bearings 30 between this sheath 20 and this drilling rod 12.Like this, be beneficial to the rotation that this drilling rod 12 is well in this sheath 20.
Further, the distance between this adjacent bearing 30 is not more than 100cm.More excellent, the distance between this adjacent bearing 30 is 50cm.Like this, these several bearings 30 have supported the inwall of this sheath 20 preferably.
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 (4)
1. the long-life oil drilling tools comprises drill collar (11), drill bit (13) and connects this drill collar (11) and the drilling rod (12) of drill bit (13), it is characterized in that: described drilling rod (12) outer rotatable be with sheath (20).
2. long-life oil drilling tools according to claim 1 is characterized in that: be provided with at least 2 bearings (30) between described sheath (20) and this drilling rod (12).
3. long-life oil drilling tools according to claim 2 is characterized in that: the distance between the described adjacent bearing (30) is not more than 100cm.
4. long-life oil drilling tools according to claim 3 is characterized in that: the distance between the described adjacent bearing (30) is 50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055087 CN203097745U (en) | 2013-01-31 | 2013-01-31 | Long-life petroleum drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055087 CN203097745U (en) | 2013-01-31 | 2013-01-31 | Long-life petroleum drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097745U true CN203097745U (en) | 2013-07-31 |
Family
ID=48849154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320055087 Expired - Lifetime CN203097745U (en) | 2013-01-31 | 2013-01-31 | Long-life petroleum drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561080A (en) * | 2018-06-15 | 2018-09-21 | 中铁四局集团有限公司 | Flatness control device and control method for pipe shed of stone tunnel |
-
2013
- 2013-01-31 CN CN 201320055087 patent/CN203097745U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561080A (en) * | 2018-06-15 | 2018-09-21 | 中铁四局集团有限公司 | Flatness control device and control method for pipe shed of stone tunnel |
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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 |