CN205778557U - A kind of five wing steel body type PDC drill bit of band cutting pair tooth - Google Patents
A kind of five wing steel body type PDC drill bit of band cutting pair tooth Download PDFInfo
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- CN205778557U CN205778557U CN201620513428.0U CN201620513428U CN205778557U CN 205778557 U CN205778557 U CN 205778557U CN 201620513428 U CN201620513428 U CN 201620513428U CN 205778557 U CN205778557 U CN 205778557U
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- cutting tooth
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Abstract
The utility model discloses five wing steel body type PDC drill bit of a kind of band cutting pair tooth, including drill bit upper body (1) with the drill bit lower body (2) of bizet, the bizet of drill bit lower body (2) is provided with the first wing (16) clockwise, second wing (17), 3rd wing (18), 4th wing (19) and the 5th wing (20), it is respectively equipped with the front toothrow being made up of multiple main cutting teeth (10) on each wing and multiple pair cuts the rear toothrow that tooth (11) forms, main cutting tooth (10) and secondary cutting tooth (11) are equidistantly interlocked on rotational trajectory；The inside of drill bit upper body (1) is provided with water injection hole (15), threadeding with drill bit lower body (2) in the end of drill bit upper body (1), is provided with five oblique water holes (12) communicated with water injection hole (15) on drill bit lower body (2).The technical solution of the utility model is the further improvement to steel body type PDC drill bit, significantly improves bit performance when actual production, reduces drilling cost.
Description
Technical field
This utility model relates to field of oil drilling, especially relates to five wing steel of a kind of band cutting pair tooth
Body formula PDC drill bit.
Background technology
The PDC drill bit used in petroleum geology drilling well at present mainly has two big classes: a class is by composite teeth
In soldering semi-cylindrical tooth post groove on bit body each wing work surface or pit, bottom rock is made to obtain
The most broken matrix-type PDC drill bit；Another kind of is to power on welding steel tooth post handle at each wing of bit body
Close tooth post to be welded in the perforation of steel column tooth, make bottom rock obtain the most broken steel body type PDC drill bit.
Both drill bits have been obtained for being widely applied, and are constantly being modified.How it is entered
The optimization that row more rationalizes, for improving bit performance, reducing drilling cost has far-reaching meaning
Justice.
Summary of the invention
The purpose of this utility model is to provide five wing steel body type PDC drill bit of a kind of band cutting pair tooth, this
The scheme of kind is the further improvement to steel body type PDC drill bit, significantly improves drill bit when actual production
Working index, reduces drilling cost.
For reaching above-mentioned purpose, this utility model is achieved by the following technical solutions.
Five wing steel body type PDC drill bit of a kind of band cutting pair tooth, including drill bit upper body with bizet
Drill bit lower body, it is characterised in that the bizet of described drill bit lower body be provided with along clockwise direction the first wing,
Second wing, the 3rd wing, the 4th wing and the 5th wing, each wing is respectively equipped with by multiple masters
The front toothrow of cutting tooth composition and the rear toothrow of multiple secondary cutting tooth composition, the master on described each wing
Cutting tooth and secondary cutting tooth equidistantly interlock on rotational trajectory；
The inside of described drill bit upper body is provided with water injection hole, the end of drill bit upper body and described drill bit lower body screw thread
Connecting, be provided with five oblique water holes communicated with water injection hole on described drill bit lower body, each oblique water hole is positioned at
Between two adjacent blades；It is provided with nozzle in described oblique water hole, arranges between nozzle and described oblique water hole
There is nozzle cage, sealed nozzle circle is installed between nozzle cage and nozzle.
Further, the main cutting tooth on described first wing and the main cutting tooth on the 4th wing are rotating
Equidistantly staggering on track, the secondary cutting tooth on the first wing and the main cutting tooth on the 4th wing are at rotation rail
Overlap on mark, second and third, main cutting tooth on five wings and secondary cutting tooth respectively with on the first wing
Main cutting tooth and secondary cutting tooth overlap on rotational trajectory.
Further, described first, fourth wing is long wing, second and third, five wings be the short sword wing.
Further, the main cutting tooth on described first wing is five, and secondary cutting tooth is two, described
Main cutting tooth on third and fourth wing is respectively four, and secondary cutting tooth is respectively two, described second,
Main cutting tooth on five wings is respectively three, and secondary cutting tooth is respectively two.
Further, described each wing is respectively equipped with electric welding layer；Described main cutting tooth and secondary cutting
Tooth comprises steel-tooth post respectively and closes tooth, and steel-tooth post soldering, on electric welding layer, closes tooth soldering at steel-tooth post
On.
Further, described steel-tooth post surface is provided with strengthening layer.
Further, described nozzle is interior six side's hard alloy nozzles.
Further, the bizet of described drill bit lower body is provided with multiple gauge teeth group.
Further, described gauge teeth group comprises little gauge composite teeth, gauge carbide button and big gauge and is combined
Tooth.
Further, described drill bit upper body is provided with the apopore communicated with water injection hole.
This utility model is improving bit performance, reduces drilling cost aspect and has significant useful effect
Really: the teeth consolidating method of wing is improved by (1), is provided with electric welding layer on each wing, uses soldering steel-tooth
The method cloth dental transition of post adds firmly, and is coated with strengthening layer on steel-tooth post surface and can improve the anti-slurry erosion of tooth post
Ability；(2) cutting tooth cloth tooth is improved, no longer with monodentate for unit cloth tooth but with same footpath tooth group
For unit from bit central to bit diameter direction cloth tooth, use and carry with footpath tooth group cloth tooth method of equidistantly interlocking
The efficiency of breaking rock of high cutting tooth；(3) improvement to rock broken near the borehole wall, before each wing uses, arrangement is main
Cutting tooth, this isometrical cloth tooth method of interlocking in groups of rear arrangement pair cutting tooth, make rock near the borehole wall obtain
To the most broken；(4) improvement to bit gauge protection, technical solutions of the utility model use by little
The gauge teeth group that gauge composite teeth, gauge carbide button and big gauge composite teeth are constituted realizes, and has and is difficult to
Abrasion, the more preferable advantage of gauge effect.
Accompanying drawing explanation
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the front view of five wing steel body type PDC drill bit of a kind of band cutting pair tooth of the present utility model；
Fig. 2 is Fig. 1 top view；
Fig. 3 is the cutting tooth scattergram of Fig. 1.
In figure: 1, drill bit upper body；2, drill bit lower body；3, little gauge closes tooth；4, gauge carbide button；
5, big gauge closes tooth；6, nozzle；7, sealed nozzle circle；8, nozzle cage；9, electric welding layer；10、
Main cutting tooth；11, secondary cutting tooth；12, oblique water hole；13, catching groove；14, apopore；15, note
Water hole；16, the first wing；17, the second wing；18, the 3rd wing；19, the 4th wing；20、
5th wing；21, steel-tooth post；22, tooth is closed；23, strengthening layer.
Detailed description of the invention
With reference to Fig. 1, the inside of drill bit upper body 1 is provided with water injection hole 15, the outside of drill bit upper body 1 be provided with
The apopore 14 that water injection hole 15 communicates, threadeds with drill bit lower body 2 and is formed in the end of drill bit upper body 1
Have for spacing catching groove 13, drill bit lower body 2 is provided with five oblique water holes communicated with water injection hole 15
12, each oblique water hole 12 is between two adjacent blades；Tiltedly it is provided with nozzle 6, nozzle in water hole 12
It is provided with nozzle cage 8 between 6 and described oblique water hole 12, between nozzle cage 8 and nozzle 6, nozzle is installed
Sealing ring 7.This purging system of the present utility model can be more thorough by apopore 14 and oblique water hole 12
The cleaning drill bit at the end.
In conjunction with Fig. 2, the bizet at drill bit lower body 2 is provided with the first wing 16, second on along clockwise direction
Wing the 17, the 3rd wing the 18, the 4th wing 19 and the 5th wing 20, first, fourth wing 16,19 is
Long wing, second and third, five wings 17,18,20 be the short sword wing, each wing is respectively equipped with by many
The front toothrow of individual main cutting tooth 10 composition and the rear toothrow of multiple secondary cutting tooth 11 composition, each wing
On main cutting tooth 10 and secondary cutting tooth 11 equidistantly interlock on rotational trajectory.
Specifically: the main cutting tooth 10 on the first wing 16 and the main cutting tooth 10 on the 4th wing 19
Rotational trajectory equidistantly staggers, the secondary cutting tooth 11 on the first wing 16 and the master on the 4th wing 19
Cutting tooth 10 overlaps on rotational trajectory；Second and third, main cutting tooth on five wings 17,18,20
10 cut tooth 11 in rotation with the main cutting tooth 10 on the first wing 16 and pair respectively with secondary cutting tooth 11
Overlap on track.
Wherein: the main cutting tooth 10 on the first wing 16 is five, secondary cutting tooth 11 is two；3rd,
Main cutting tooth 10 on four wings 18,19 is respectively four, and secondary cutting tooth 11 is respectively two；The second,
Main cutting tooth 10 on five wings 17,20 is respectively three, and secondary cutting tooth 11 is respectively two.
This five wing structures of technical solutions of the utility model, no longer with monodentate for unit cloth tooth but with
It is unit with footpath tooth group equidistantly to interlock to bit diameter direction cloth tooth from bit central.With the first wing 16
Cloth tooth on the basis of tooth group, the tooth group of the tooth group of the 4th wing 19 and the first wing 16 staggers cloth tooth, other
Wing presses the first wing 16 cloth tooth, substantially increases the efficiency of breaking rock of cutting tooth.Each wing uses front row
Cloth main cutting tooth 10, this isometrical cloth toothing that interlocks in groups of rear arrangement pair cutting tooth 11, is for well
The improvement of broken rock near wall, can make rock near the borehole wall obtain more efficiently the most broken.
The bizet of drill bit lower body 2 is provided with and is combined by little gauge composite teeth 3, gauge carbide button 4 and big gauge
The advantages such as the gauge teeth group of tooth 5 composition, has the most easy to wear, and gauge effect is more preferable.
With reference to Fig. 3, each wing is respectively equipped with electric welding layer 9；Main cutting tooth 10 and secondary 11 points of tooth of cutting
Not being made up of steel-tooth post 21 and conjunction tooth 22, steel-tooth post 21 soldering, on electric welding layer 9, closes tooth 22
Soldering is on steel-tooth post 21, and this teeth consolidating mode strengthens the teeth consolidating of steel body type PDC drill bit.In order to improve
The anti-slurry erosion ability of steel-tooth post 21, can be coated with strengthening layer 23 on steel-tooth post 21 surface.
Obviously, those skilled in the art can carry out various change and deformation to this utility model and not take off
From spirit and scope of the present utility model.So, if of the present utility model these change and deformation belongs to
Within the scope of this utility model claim and equivalent technologies thereof, then this utility model also comprises these changes
With including modification.
Claims (10)
1. five wing steel body type PDC drill bit of a band cutting pair tooth, including drill bit upper body (1) with the drill bit lower body (2) of bizet, it is characterized in that, the bizet of described drill bit lower body (2) is provided with the first wing (16) clockwise, second wing (17), 3rd wing (18), 4th wing (19) and the 5th wing (20), it is respectively equipped with the front toothrow being made up of multiple main cutting teeth (10) on each wing and multiple pair cuts the rear toothrow that tooth (11) forms, main cutting tooth (10) and secondary cutting tooth (11) on described each wing are equidistantly interlocked on rotational trajectory；
The inside of described drill bit upper body (1) is provided with water injection hole (15), threaded with described drill bit lower body (2) in the end of drill bit upper body (1), being provided with five oblique water holes (12) communicated with water injection hole (15) on described drill bit lower body (2), each oblique water hole (12) is between two adjacent blades；It is provided with nozzle (6) in described oblique water hole (12), it is provided with nozzle cage (8) between nozzle (6) and described oblique water hole (12), sealed nozzle circle (7) is installed between nozzle cage (8) and nozzle (6).
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 1, it is characterized in that, main cutting tooth (10) on described first wing (16) equidistantly staggers on rotational trajectory with the main cutting tooth (10) on the 4th wing (19), secondary cutting tooth (11) on first wing (16) overlaps on rotational trajectory with the main cutting tooth (10) on the 4th wing (19), second, three, five wings (17, 18, 20) main cutting tooth (10) and secondary cutting tooth (11) on overlap on rotational trajectory with the main cutting tooth (10) on the first wing (16) and secondary cutting tooth (11) respectively.
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 2, it is characterised in that described first, fourth wing (16,19) is long wing, second and third, five wings (17,18,20) be the short sword wing.
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 3, it is characterized in that, main cutting tooth (10) on described first wing (16) is five, secondary cutting tooth (11) is two, main cutting tooth (10) on described third and fourth wing (18), (19) is respectively four, secondary cutting tooth (11) is respectively two, main cutting tooth (10) on described second, five wings (17), (20) is respectively three, and secondary cutting tooth (11) is respectively two.
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 4, it is characterised in that be respectively equipped with electric welding layer (9) on described each wing；Described main cutting tooth (10) and secondary cutting tooth (11) comprise steel-tooth post (21) and composite teeth (22) respectively, steel-tooth post (21) soldering is on electric welding layer (9), and composite teeth (22) soldering is on steel-tooth post (21).
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 5, it is characterised in that described steel-tooth post (21) surface is provided with strengthening layer (23).
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 1, it is characterised in that described nozzle (6) is interior six side's hard alloy nozzles.
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 7, it is characterised in that the bizet of described drill bit lower body (2) is provided with multiple gauge teeth group.
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 8, it is characterised in that described gauge teeth group comprises little gauge composite teeth (3), gauge carbide button (4) and big gauge composite teeth (5).
Five wing steel body type PDC drill bit of band cutting pair tooth the most according to claim 1, it is characterised in that described drill bit upper body (1) is provided with the apopore (14) communicated with water injection hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513428.0U CN205778557U (en) | 2016-05-31 | 2016-05-31 | A kind of five wing steel body type PDC drill bit of band cutting pair tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513428.0U CN205778557U (en) | 2016-05-31 | 2016-05-31 | A kind of five wing steel body type PDC drill bit of band cutting pair tooth |
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| Publication Number | Publication Date |
|---|---|
| CN205778557U true CN205778557U (en) | 2016-12-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620513428.0U Active CN205778557U (en) | 2016-05-31 | 2016-05-31 | A kind of five wing steel body type PDC drill bit of band cutting pair tooth |
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| CN (1) | CN205778557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840103A (en) * | 2016-05-31 | 2016-08-10 | 陕西金刚石油机械有限公司 | Five-blade steel body type polycrystalline diamond compact (PDC) drill bit with auxiliary cutting teeth |
| CN110607992A (en) * | 2019-10-18 | 2019-12-24 | 山东源运通矿山装备科技有限公司 | Five-wing seven-tooth drill bit |
-
2016
- 2016-05-31 CN CN201620513428.0U patent/CN205778557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840103A (en) * | 2016-05-31 | 2016-08-10 | 陕西金刚石油机械有限公司 | Five-blade steel body type polycrystalline diamond compact (PDC) drill bit with auxiliary cutting teeth |
| CN110607992A (en) * | 2019-10-18 | 2019-12-24 | 山东源运通矿山装备科技有限公司 | Five-wing seven-tooth drill bit |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |