CN102296938A - Coring tool with round slots on knife back - Google Patents
Coring tool with round slots on knife back Download PDFInfo
- Publication number
- CN102296938A CN102296938A CN2011102456975A CN201110245697A CN102296938A CN 102296938 A CN102296938 A CN 102296938A CN 2011102456975 A CN2011102456975 A CN 2011102456975A CN 201110245697 A CN201110245697 A CN 201110245697A CN 102296938 A CN102296938 A CN 102296938A
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- CN
- China
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- coring tool
- knife back
- drill bit
- groove
- metal chip
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Abstract
The invention discloses a coring tool with round slots on the knife back, which mainly comprises a metal chip-removing drill bit, a drill stem and a core drill, and the drill stem and the core drill are respectively connected with both ends of the metal chip-removing drill bit. The metal chip-removing drill bit, the drill stem and the core drill can be separated, so that the whole coring tool can be prevented from being scrapped, and the outer surface of a raised cutting edge on the outside of the metal chip-removing drill bit is provided with a plurality of slots, which can enhance wear resistance and stability.
Description
Technical field
The coring tool that the present invention relates to use in the drilling project, wherein the present invention relates generally to the coring tool that the knife back is opened circular groove.
Background technology
Drill bit is to go out through hole or blind hole in order to drilling on solid material, and can be to the cutter of existing hole reaming.Drill bit commonly used mainly contains fluted drill, chit drill, centre drill, depth drill and cylindrical drill.Though reamer and counterbit can not be holed, also they are included into drill bit one class traditionally on solid material.
In drilling process, coring tool is to take the used drilling tool of rock core when creeping into.In order to improve core recovery percentage and quality, according to creeping into rock ore bed integrated degree difference, adopt the dissimilar and utensil of coring structure respectively, as single tube, two-tube, three layers of pipe coring tool, coring with local inverse circulation instrument, sometimes also will be with the special-purpose coring tool of taking non-disturbed sample.
Existing coring tool, no matter be single tube, two-tube, or three layers of pipe, all adopt, core bit, chip removal drill bit, drilling rod all-in-one-piece structure, this design, in probing was used, any one position in core bit, chip removal drill bit, drilling rod existed under the damaged condition, whole coring tool is directly scrapped, thereby causes the interruption of the work of drilling.
In addition, existing coring tool, for the geological conditions of hard formation, it is relatively poor respectively in abrasion resistance and stability, therefore also needs to strengthen for abrasion resistance and stability, could satisfy the hard formation probing.
Summary of the invention
The object of the present invention is to provide a kind of detachable, intensity height, abrasion resistance good, good stability, easy and simple to handle, coring tool that the knife back that aid is complete is opened circular groove.
Implementation of the present invention is as follows: the knife back is driven the coring tool of circular groove, mainly by metal chip removal drill bit, and the drilling rod and the column drill formation that are connected to metal chip removal drill bit two ends.
Described metal chip removal drill bit is a hollow cylindrical, and its external surface has the spill chip area, is provided with protruding blade between the adjacent two spill chip areas.
Described protruding blade external surface is provided with some grooves, is provided with in the described groove with groove is complementary to agree with piece.
The transverse cross-sectional shape of described groove is circular.
The described piece that agrees with is provided with some boss.
Described boss number is between 20 to 50.
Described transverse cross-sectional shape of agreeing with piece is a gear shape.
The diameter of described groove is between 2 centimetres to 0.5 centimetre.
Be connected by the silk thread mouth that is provided with between metal chip removal drill bit and drilling rod and the column drill, make metal chip removal drill bit, drilling rod, column drill, can split, when metal chip removal drill bit, drilling rod, column drill, damaging appears in any one position, when needing to change, we can split the position of needs get off, and replace again again.Like this, be unlikely to occur when damaging appears in any one position, whole coring tool will face the situation of scrapping.
The protruding blade external surface of metal chip removal drill bit is provided with some grooves, and the described piece that agrees with uses welding procedure to be embedded in the groove.It agrees with the piece transverse cross-sectional shape and is set to gear shape, has guaranteed in drilling process, has increased the abrasion resistance and the stability of metal chip removal drill bit.
The present invention compared with prior art has the following advantages and beneficial effect: metal chip removal drill bit, drilling rod, column drill are detachable, avoid whole coring tool to scrap, the outer protruding blade external surface of its metal chip removal drill bit is provided with some grooves, increases abrasion resistance and closes stability.
Description of drawings
Fig. 1 is a syndeton schematic diagram of the present invention.
Fig. 2 is for groove of the present invention and agree with the block structure schematic diagram.
Label among the figure is expressed as respectively: 1, drilling rod; 2, metal chip removal drill bit; 3, column drill; 21, protruding blade; 211, groove; 212, agree with piece; 22, spill chip area.
The specific embodiment
As shown in Figure 1, the knife back is driven the coring tool of circular groove, mainly by metal chip removal drill bit 2, and the drilling rod 1 and column drill 3 formations that are connected to metal chip removal drill bit 2 two ends.
Metal chip removal drill bit 2 is a hollow cylindrical, and its external surface has spill chip area 22, is provided with protruding blade 21 between the adjacent two spill chip areas 22.
As shown in Figure 2, the transverse cross-sectional shape of groove 211 is circular.
Agree with piece 212 and be provided with some boss 2121.
Boss 2121 numbers are 10.
The transverse cross-sectional shape of agreeing with piece 212 is a gear shape.
The diameter of groove 211 is 1 centimetre.
During use, drilling rod 1 is connected with metal chip removal drill bit 2, simultaneously metal chip removal drill bit 2 is connected with column drill 3, utilize metal chip removal drill bit 2 to stablize and increase anti-wear performance.
The present invention is topmost to be characterised in that, is provided with some grooves 211 at protruding blade 21 external surfaces of metal chip removal drill bit 2, adopt simultaneously the cross section be gear shape agree with piece 212, be embedded in the groove 211.Increase abrasion resistance with this, prevent that metal chip removal drill bit 2 from running into hard geology, damage coring tool.
As mentioned above, then can well realize the present invention.
Claims (8)
1. the knife back is driven the coring tool of circular groove, it is characterized in that, and mainly by metal chip removal drill bit (2), and the drilling rod (1) and column drill (3) formation that are connected to metal chip removal drill bit (2) two ends.
2. the knife back according to claim 1 is driven the coring tool of circular groove, it is characterized in that, described metal chip removal drill bit (2) is a hollow cylindrical, and its external surface has spill chip area (22), is provided with protruding blade (21) between the adjacent two spill chip areas (22).
3. the knife back according to claim 2 is driven the coring tool of circular groove, it is characterized in that, described protruding blade (21) external surface is provided with some grooves (211), is provided with in the described groove (211) with groove (211) is complementary to agree with piece (212).
4. the knife back according to claim 3 is driven the coring tool of circular groove, it is characterized in that, the transverse cross-sectional shape of described groove (211) is circular.
5. the knife back according to claim 3 is driven the coring tool of circular groove, it is characterized in that, the described piece (212) that agrees with is provided with some boss (2121).
6. the knife back according to claim 5 is driven the coring tool of circular groove, it is characterized in that, described boss (2121) number is between 10 to 50.
7. drive the coring tool of circular groove according to any described knife back in the claim 3,4,5,6, it is characterized in that described transverse cross-sectional shape of agreeing with piece (212) is a gear shape.
8. drive the coring tool of circular groove according to any described knife back in the claim 3,4,5,6, it is characterized in that the diameter of described groove (211) is between 2 centimetres to 0.5 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102456975A CN102296938A (en) | 2011-08-25 | 2011-08-25 | Coring tool with round slots on knife back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102456975A CN102296938A (en) | 2011-08-25 | 2011-08-25 | Coring tool with round slots on knife back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102296938A true CN102296938A (en) | 2011-12-28 |
Family
ID=45357593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102456975A Pending CN102296938A (en) | 2011-08-25 | 2011-08-25 | Coring tool with round slots on knife back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102296938A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5145017A (en) * | 1991-01-07 | 1992-09-08 | Exxon Production Research Company | Kerf-cutting apparatus for increased drilling rates |
| CN1644870A (en) * | 2005-02-01 | 2005-07-27 | 西南石油学院 | Stabilizer of gas drill horizontal well |
| CN2809200Y (en) * | 2005-05-17 | 2006-08-23 | 赵景军 | Thread off preventing coring tool for deep well |
| CN101120155A (en) * | 2004-08-06 | 2008-02-06 | 哈利伯顿能源服务公司 | Integrated magnetic ranging tool |
| CN202209156U (en) * | 2011-08-25 | 2012-05-02 | 成都科盛石油科技有限公司 | Coring tool with circular grooves on knife back |
-
2011
- 2011-08-25 CN CN2011102456975A patent/CN102296938A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5145017A (en) * | 1991-01-07 | 1992-09-08 | Exxon Production Research Company | Kerf-cutting apparatus for increased drilling rates |
| CN101120155A (en) * | 2004-08-06 | 2008-02-06 | 哈利伯顿能源服务公司 | Integrated magnetic ranging tool |
| CN1644870A (en) * | 2005-02-01 | 2005-07-27 | 西南石油学院 | Stabilizer of gas drill horizontal well |
| CN2809200Y (en) * | 2005-05-17 | 2006-08-23 | 赵景军 | Thread off preventing coring tool for deep well |
| CN202209156U (en) * | 2011-08-25 | 2012-05-02 | 成都科盛石油科技有限公司 | Coring tool with circular grooves on knife back |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111228 |