CN203835272U - Arc-shaped gauge protector type PDC drill bit - Google Patents
Arc-shaped gauge protector type PDC drill bit Download PDFInfo
- Publication number
- CN203835272U CN203835272U CN201420228376.3U CN201420228376U CN203835272U CN 203835272 U CN203835272 U CN 203835272U CN 201420228376 U CN201420228376 U CN 201420228376U CN 203835272 U CN203835272 U CN 203835272U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- arc
- wing
- bit
- drill
- 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
Links
- 230000001012 protector Effects 0.000 title abstract 8
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 230000036346 tooth eruption Effects 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims description 18
- 239000011435 rock Substances 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000002035 prolonged Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 101700078171 KNTC1 Proteins 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Abstract
The utility model relates to an arc-shaped gauge protector type PDC drill bit and belongs to the technical field of oil gas drilling. The drill bit comprises a drill rod, a drill bit base body, a main blade, an auxiliary blade, PDC cutting teeth, a nozzle, an O-shaped bolt, a guiding drill and a chip groove, wherein an arc-shaped gauge protector is connected to the tail end of the main blade and the tail end of the auxiliary blade, the width of the surface where the arc-shaped gauge protector is in contact with the wall of a well is reduced gradually to zero along the drill rod, the height of the arc-shaped gauge protector is reduced gradually to zero along the drill rod, the angle between the axis of the arc-shaped gauge protector and the axis of the drill bit ranges from 30 degrees to 50 degrees, and the guiding drill and the drill bit are detachably connected in a threaded mode. Compared with the prior art, the arc-shaped gauge protector type PDC drill bit has the advantages that due to the adoption of the arc-shaped gauge protector, the friction area between the drill bit and rock is effectively reduced, the resistance of the drill bit is reduced, the chip removal area is increased greatly, drainage and cooling are facilitated, and the drill bit is protected; due to the fact that the guiding drill and the drill bit are connected in the threaded mode, the drill bit can be adjusted or detached according to different stratums, the service life of the drill bit is prolonged, drilling efficiency is improved, and cost is reduced at the same time.
Description
Technical field
The utility model relates to the technical field of PDC drill bit, especially a kind of arc gauge PDC drill bit.
Background technology
As everyone knows, the advantage such as PDC drill bit rate of penetration is fast, the life-span is long, drilling depth is many, so be widely used in petroleum and natural gas drilling well field.The advantages such as its high-wearing feature, high impact-resistant, anti-oblique, anti-mud drum, high rotating speed, are described as " three height " product of high-tech, high investment, high production.It can reduce the cost of winning in oil field greatly in the application of drilling process, accelerates exploitation rate, improves the economic benefit in oil field.
But conventional PDC drill bit is in the time boring hard place floor height grinding stratum, and the life-span, short, single dipstick metering was less.Its main cause is that frictional force strengthens thereupon, has increased resistance because the contact area of PDC gauge and the borehole wall is larger; And the width of gauge has limited the area of chip area greatly, reduce waterpower cleaning, larger on the life-span impact of drill bit.
Utility model content
The technical problems to be solved in the utility model is how to overcome the deficiency that prior art exists, and a kind of arc gauge PDC drill bit is provided.It has reasonable in design, and stability is high, has effectively improved the broken clear rock efficiency of rock of PDC drill bit, cost-saving.
The design by novel technical scheme is: a kind of arc gauge PDC drill bit, comprises drilling rod, bit matrix, the operator wing, secondary wing, PDC cutting teeth, nozzle, O type bolt, guide bur and chip area.Bit matrix is positioned on drilling rod, and the operator wing and secondary wing are positioned on bit matrix, and PDC cutting teeth is positioned on the operator wing and secondary wing, O type bolt is positioned on the operator wing, nozzle is positioned on bit matrix, and guide bur is set in the middle of bit matrix, between the operator wing and secondary wing, is chip area.Described wing end is connected with arc gauge, is contracted to gradually zero with the width of borehole wall contact surface along the direction of drilling rod, and arc gauge height is contracted to zero gradually along bull stick direction, and the angle of arc gauge axis and drill axis is 30-50 degree.
For coordinating arc gauge to reach better effect, the operator wing end of described PDC drill bit is provided with O type peg.
Described O type peg is capsule shape, and surface is round and smooth, alleviates torque-on-bit fluctuation, and safety improves.
The described operator wing be four uniform, planform is spiral of Archimedes, and eight PDC cutting teeths are installed.
Described secondary wing be two uniform, planform is spiral of Archimedes, and six PDC cutting teeths are installed.
Guide bur is set in the middle of described bit matrix, and guide bur is cross bit and is screwed with bit body, detachable.
The beneficial effects of the utility model are: arc gauge effectively reduces the friction area of drill bit and rock, reduce resistance, and the area of chip removal simultaneously increases greatly, are conducive to draining cooling, the drill bit of protection; Guide bur and drill bit are screwed, can be according to Different Strata, regulate or dismounting drill bit, and extend the application life of drill bit, improve drilling efficiency simultaneously cost-saving.
Brief description of the drawings
Fig. 1 is detailed description of the invention structural representation of the present utility model;
Fig. 2 is the top view of the utility model detailed description of the invention;
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of arc gauge PDC drill bit, comprise drilling rod 1, bit matrix 2, the operator wing 3, secondary wing 4, PDC cutting teeth 5, guide bur 6, chip area 7, nozzle 8, O type peg 9, the operator wing 3 and secondary wing 4 are positioned at bit matrix 2 bizets, PDC cutting teeth 5 is positioned on the operator wing 3 and secondary wing 4, and the groove shape space between the operator wing 3 and secondary wing 4 is chip area 7.
Described wing 3 and secondary wing 4 ends are connected with arc gauge, are contracted to gradually zero with the width of borehole wall contact surface along the direction of drilling rod, and arc gauge height is contracted to zero gradually along bull stick direction, and the angle of arc gauge axis and drill axis is 30-50 degree.Above structure has reduced the frictional force between drill bit and rock greatly, has increased the area of chip area 7.For coordinating arc gauge to reach better effect, the operator wing end of described PDC drill bit is provided with O type peg 9.Described O type peg 9 is capsule shape, and surface is round and smooth, alleviates torque-on-bit fluctuation, and safety improves.
The center of top of described bit matrix 2 is provided with a guide bur 6, and guide bur is cross bit and is screwed with bit matrix 2, detachable.
The described operator wing 3 be four uniform, planform is spiral of Archimedes, and eight PDC cutting teeths are installed.
Described secondary wing be 4 be two uniform, planform is spiral of Archimedes, and six PDC cutting teeths are installed.
The utility model reasonable in design, safe and reliable, by cross bit 6 is screwed together on bit matrix 2, thereby has facilitated dismounting and the replacing of cross bit, is applicable to various stratum; Effectively reduce the friction area of drill bit and rock by arc gauge, reduce resistance, the area of chip removal simultaneously increases greatly, is conducive to draining cooling, the drill bit of protection.
Claims (7)
1. an arc gauge PDC drill bit, comprise drilling rod, bit matrix, the operator wing, secondary wing, PDC cutting teeth, nozzle, O type bolt, guide bur and chip area, bit matrix is positioned on drilling rod, the operator wing and secondary wing are positioned on bit matrix, PDC cutting teeth is positioned on the operator wing and secondary wing, O type bolt is positioned on the operator wing, nozzle is positioned on bit matrix, guide bur is set in the middle of bit matrix, between the operator wing and secondary wing, be chip area, it is characterized in that: the described operator wing and secondary wing end are connected with arc gauge; Guide bur and bit matrix are screwed, detachable.
2. arc gauge PDC drill bit according to claim 1, is characterized in that: the width of described arc gauge and borehole wall contact surface is contracted to zero gradually along the direction of drilling rod, and arc gauge height is contracted to zero gradually along bull stick direction.
3. arc gauge PDC drill bit claimed in claim 1, is characterized in that: the angle of described arc gauge axis and drill axis is 30-50 degree.
4. the arc gauge PDC drill bit described in claim 1 or 2, is characterized in that: the operator wing end of described PDC drill bit is provided with O shape peg.
5. arc gauge PDC drill bit claimed in claim 1, is characterized in that: the described operator wing be four uniform, planform is spiral of Archimedes, and eight PDC cutting teeths are installed.
6. arc gauge PDC drill bit claimed in claim 1, is characterized in that: described secondary wing be two uniform, planform is spiral of Archimedes, and six PDC cutting teeths are installed.
7. a kind of arc gauge PDC drill bit claimed in claim 1, is characterized in that: in the middle of described bit matrix, guide bur is set, guide bur is cross bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228376.3U CN203835272U (en) | 2014-05-04 | 2014-05-04 | Arc-shaped gauge protector type PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228376.3U CN203835272U (en) | 2014-05-04 | 2014-05-04 | Arc-shaped gauge protector type PDC drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835272U true CN203835272U (en) | 2014-09-17 |
Family
ID=51513129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420228376.3U Expired - Fee Related CN203835272U (en) | 2014-05-04 | 2014-05-04 | Arc-shaped gauge protector type PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835272U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329030A (en) * | 2014-10-24 | 2015-02-04 | 宜春学院 | Six-point positioning inwards recessed three-wing PDC noncoring bit structure and gauge protection method of six-point positioning inwards recessed three-wing PDC noncoring bit structure |
| CN109854179A (en) * | 2018-12-21 | 2019-06-07 | 太重（天津）滨海重型机械有限公司 | Stake top drilling machine drilling tool |
| CN113294096A (en) * | 2021-05-27 | 2021-08-24 | 河北锐石钻头制造有限公司 | PDC drill bit with stable tool face for directional drilling |
-
2014
- 2014-05-04 CN CN201420228376.3U patent/CN203835272U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329030A (en) * | 2014-10-24 | 2015-02-04 | 宜春学院 | Six-point positioning inwards recessed three-wing PDC noncoring bit structure and gauge protection method of six-point positioning inwards recessed three-wing PDC noncoring bit structure |
| CN104329030B (en) * | 2014-10-24 | 2016-09-21 | 宜春学院 | A kind of six point location indent three wings PDC borehole bit structure and radial-protecting methods thereof |
| CN109854179A (en) * | 2018-12-21 | 2019-06-07 | 太重（天津）滨海重型机械有限公司 | Stake top drilling machine drilling tool |
| CN109854179B (en) * | 2018-12-21 | 2021-01-26 | 太重（天津）滨海重型机械有限公司 | Drilling tool of pile top drilling machine |
| CN113294096A (en) * | 2021-05-27 | 2021-08-24 | 河北锐石钻头制造有限公司 | PDC drill bit with stable tool face for directional drilling |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20210504 |