CN206903589U - A kind of new five wings PDC drill bit of band cone tooth - Google Patents
A kind of new five wings PDC drill bit of band cone tooth Download PDFInfo
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- CN206903589U CN206903589U CN201720460489.XU CN201720460489U CN206903589U CN 206903589 U CN206903589 U CN 206903589U CN 201720460489 U CN201720460489 U CN 201720460489U CN 206903589 U CN206903589 U CN 206903589U
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Abstract
It the utility model is related to a kind of new five wings PDC drill bit of band cone tooth, including joint, drill body, five wings, the angle between five wings is respectively 71 °, 70 °, 75 °, 76 °, 68 °；The truncated sides of every wing are respectively welded multiple main cutting teeth uniformly arranged, multiple wing cone teeth are welded with by main cutting tooth, runner is provided between five wings, the top of the runner is provided with the nozzle water hole with drill body intracavity inter-connection, simple in construction, there is higher rate of penetration in the oilfield exploitation region, drill bit is stable, and wear-resisting and shock resistance is preferable, and water project situation is abundant, drilling time is shortened, reduces drilling cost.
Description
Technical field
It the utility model is related to oil drilling equipment technical field, more particularly to a kind of new five wings PDC of band cone tooth
Drill bit.
Background technology
PDC (Polycrystalline diamond compact) is a kind of by man-made polycrystalline diamond and tungsten carbide-base
The cutting element that seat welds together at high temperature under high pressure；PDC drill bit is to be provided with PDC in the cutting tooth of normal drill bit.PDC
Since drill bit last century the eighties come out, because having the characteristics that average rate of penetration height, drilling depth is more, long lifespan, gradually into
For oil, a kind of efficient rock-breaking instrument of gas industry wide popularization and application；PDC drill bit of new generation is recognized with people
Deepen continuously, its production technology improves constantly, and usage amount also increases year by year.
Currently known PDC drill bit species is various, and soft following complicated exploration acreage does not reach preferable drilling well needs in, and
Focus on rate of penetration in drilling process, ignore the interlayer contained in soft formation, it is not easy to control hole deviation, water conservancy unreasonable structure
Bit balling, cutting tooth heat cracks are caused, phenomena such as drill bit carbide layers and cutting tooth pedestal are by erosion, has a strong impact on spudder
Make efficiency, increase drilling cost.
Utility model content
The shortcomings that in order to overcome above-mentioned prior art, the purpose of this utility model are to provide a kind of simple in construction, band cone tooth,
To ensure that the band steadily crept into heterogeneity stratum in drilling process bores the new four wings PDC drill bit of tooth.
To reach above-mentioned purpose, the utility model uses following technical scheme, and a kind of new five wings PDC of band cone tooth is bored
Head, including joint, the fixed drill body for being located on joint or being integrated with joint, and the center line and joint of the drill body
Center line be located on the same line, be fixed with five wings on described drill body, one end point of five wings
The top of drill body is not welded on, and the focus of the extension line of five wings is located on the central point of drill body, five knives
The wing other end is respectively welded on the circumferential surface of drill body, the angle between five wings is respectively 71 °, 70 °, 75 °,
76°、68°；The truncated sides of every wing are respectively welded multiple main cutting teeth uniformly arranged, and are welded with by main cutting tooth multiple
Wing bores tooth, and the wing bores tooth position between adjacent main cutting tooth on the extended line of center line, and described main cutting tooth is faced upward
Angle is 15 ° -20 °；The side of the main cutting tooth of multiple main cutting tooth ends is provided with big fillet surface tooth, and the big fillet surface
The angle of tooth chamfering is 30 ° -45 °, and the big fillet surface tooth is located on the same line with multiple main cutting teeth；Five wings it
Between be provided with runner, the top of the runner is provided with the nozzle water hole with drill body intracavity inter-connection.
The elevation angles of described wing cone tooth are 15 ° -20 °, optimal for 18 °.
The end of five wings has been respectively fixedly connected with gage surface, and the circumferential surface of the gage surface and drill body, which is fixed, to be connected
Connect, described gage surface is provided with gauge teeth and curved surface tooth, and described gauge teeth is located at the side of the cutting direction of gage surface.
The top center of described drill body is fixed with center cone tooth.
Back reaming tooth is additionally provided with the gage surface, the back reaming tooth position is in the end of gauge teeth.
The threaded threaded rod of a tool, and the center line of the threaded rod and joint are fixedly connected with below described joint
It is located on the same line.
The beneficial effects of the utility model are：It is simple in construction, there is higher rate of penetration in the oilfield exploitation region, bore
Head is stable, and wear-resisting and shock resistance is preferable, and water project situation is abundant, shortens drilling time, reduces drilling cost.Particularly
PDC drill bit in 0 ° of center position of sound production conical centre's cone tooth as bit central broken rock, tunnel element after, drill bit wing
Design arrangement outwards elapses, and increases drill body center portion space, and so, the overall flow of drilling fluid can be more unobstructed,
The cooling capacities of all wings is strengthened, it is unobstructed much sooner to the upper row of landwaste, heel row cone tooth can in advance broken rock again by justifying
Tooth broken rock, so as to extend drilling life of bit.
Brief description of the drawings
Fig. 1 is that the utility model knot overlooks structure schematic diagram；
Fig. 2 is schematic diagram of the present utility model.
In figure：1st, main cutting tooth；2nd, gauge teeth；3rd, curved surface tooth；4th, runner；5th, wing；6th, nozzle water hole；7th, center cone
Tooth；8th, wing cone tooth；9th, big fillet surface tooth；10th, gage surface；11st, back reaming tooth；12nd, joint；13rd, threaded rod；14. drill bit sheet
Body.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
In description of the present utility model, it is to be understood that term " " center ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
New limitation.
Term " first ", " second " be only used for describe purpose, and it is not intended that instruction or imply relative importance or
The implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or imply
Ground includes one or more this feature.In description of the present utility model, unless otherwise indicated, " multiple " are meant that two
Individual or two or more.
Embodiment 1
A kind of new five wings PDC drill bit of band cone tooth as illustrated in fig. 1 and 2, including joint 12, fixation are located at joint 12
The drill body 14 being integrated above or with joint 12, and the center line of the center line of the drill body 14 and joint 12 is positioned at same
On bar straight line, while described drill body 14 is used to carry wing, also it is connected with the drilling rod of standard, is driven and bored by drilling rod
Head body 14 is rotated, and then the main cutting tooth that the wing and wing being provided with by drill body 14 are provided with is bored
Rock；Five wings 5 are fixed with described drill body 14, one end of five wings 5 is respectively welded at drill body 14
Top, and the focus of the extension line of five wings 5 is located on the central point of drill body 14, five other ends of wing 5 difference
It is welded on the circumferential surface of drill body 14；As can be seen that wing is to realizing full cladding at the top of drill body, in rock drilling
During, can be stronger to the oppressive force of rock, toughness is bigger, and the dynamics of rock drilling can also strengthen, and effectively raise rock drilling
Efficiency, while ensure that drill bit is not easy to be damaged during rock drilling, while in order to ensure process of the drill bit in work
In, wing is not easy to be worn, and on the surface of wing, all surfacings have wear-resistant material, and the wear-resistant material is tungsten carbide wear resistant layer；Five
Angle between piece wing is respectively 71 °, 70 °, 75 °, 76 °, 68 °；Angle between wing simultaneously differs, and passes through this angle
Arrangement, it is ensured that, will not be identical because of angle while drill bit rotate at a high speed, needed during rock drilling big
The power of amount can just make drill bit advance during rock drilling, and use the arrangement of different angle wing, in the process that drill bit is got into the cave
In, it is only necessary to fraction of power is used, drill bit just can automatically advance, and effectively raise the power of drill bit rock drilling, while boring
During rock, more steadily；The truncated sides of every wing 5 are respectively welded multiple main cutting teeth 1 uniformly arranged, and master cuts
Cut and multiple wing cone teeth 8 are welded with by tooth 1, and the extended line of the wing cone center line between adjacent main cutting tooth 1 of tooth 8
On, the elevation angle of described main cutting tooth 1 is 15 ° -20 °；While described wing cone tooth 8 can carry out broken rock to rock, because
Taper is shaped as, at the initial stage of rock drilling, can be good at being contacted with rock surface, is effectively avoided at broken rock initial stage,
The phenomenon that drill bit breaks away with rock surface, causes, the position of broken rock, which changes, to be located at；Multiple ends of main cutting tooth 1
The side of main cutting tooth 1 is provided with big fillet surface tooth 9, and the angle of the big chamfering of fillet surface tooth 9 is 30 ° -45 °, the big chamfering
The angle of the chamfering of face tooth 9 is optimal for 40 °, because the big fillet surface tooth 9 is located at the end of main cutting tooth 1, therefore should in broken rock
Big 9 contribution to broken rock of fillet surface tooth is relative to smaller, because main cutting tooth 1 is located at before big fillet surface tooth 9 in broken rock
During, main cutting tooth 1 is larger to the active force of rock, and the effect of big fillet surface tooth 9 is to after by the broken rock of main cutting tooth 1
Grotto is polished, and makes it rounder and more smooth, grotto is polished in order to convenient, therefore, the big fillet surface tooth 9 being provided with must
There must be chamfering, can ensure that the flank of tooth is not very sharp with chamfering, while the contact surface of fillet surface and grotto bigger, energy
Enough conveniently to be polished, the big fillet surface tooth 9 is located on the same line with multiple main cutting teeth 1；Set between five wings 5
There is runner 4, the top of the runner 4 is provided with the nozzle water hole 6 with the intracavity inter-connection of drill body 14；The mistake in work can be ensured
Cheng Zhong, the condensed water in cavity can be cooled to whole drill bit by nozzle water hole 6, avoided during rock drilling, because
Excessive with the frictional force of rock, heat caused by drill bit can not scatter and disappear greatly in time, cause drill bit that shape occurs in the process of high temperature
Become, drill bit is damaged, in order to ensure the radiating of drill bit, the diameter in the nozzle water hole 6 in the application be slightly less than wing it
Between gap, effectively raise the radiating of drill bit using so big water spray water hole 6, while in order to during radiating,
The water after radiating in nozzle water hole is entered, can rapidly be flowed out, the head pressure increase of drill bit is not left in, is provided with
The required condensed water that can ensure to radiate of runner 4 quickly can be flowed out from runner 4, will not can not be flowed out in time because of water,
The situation that build-up of pressure is crossed occurs.
Embodiment 2
It is stronger to the intensity of the broken rock of rock in order to during rock drilling on the basis of embodiment 1, meanwhile,
The speed increase of broken rock, the elevation angles of described wing cone tooth 8 are 15 ° -20 °, and optimal for 18 °, the wing bores the energy of tooth 8
While enough progress broken rocks to rock, because being shaped as taper, at the initial stage of rock drilling, it can be good at being connect with rock surface
Touch, effectively avoid, in the phenomenon breakked away with rock surface at broken rock initial stage, drill bit, causing, the position of broken rock becomes
Change.
Further, in order to ensure, the body of whole drill bit can realize comprehensive covering, increase the speed of rock drilling
Rate, while ensure the stability of rock drilling, ensure the grotto inner surface smoother of rock drilling, when the later stage places tubing string in grotto,
Scratch will not be caused to the outside face of tubing string because of the rough surface of grotto, while inconvenient tubing string is put into；Described wing 5
End be fixedly connected with gage surface 10, the gage surface 10 is fixedly connected with the circumferential surface of drill body 14, described gage surface
10 are provided with gauge teeth 2 and curved surface tooth 3, and described gauge teeth 2 is located at the side of the cutting direction of gage surface 10.
Further, in order to ensure drill bit during rock drilling, more stablize, the top of described drill body 14
Center is fixed with center cone tooth 7, and the stability of rock drilling is able to ensure that by center cone tooth 7.
Further；Back reaming tooth 11 is additionally provided with the gage surface 10, the back reaming tooth 11 is located at the end of gauge teeth 2
End.
Further, can be connected in order to facilitate between drill body and mark drilling rod, the lower section of described joint 12 is consolidated
Surely the threaded threaded rod 13 of a tool is connected with, and the center line of the threaded rod 13 and joint 12 is located on the same line.
Above example is only for example, not forming to the scope of protection of the utility model to of the present utility model
Limitation, every design same or analogous with the utility model belonged within the scope of protection of the utility model.
Claims (6)
1. a kind of new five wings PDC drill bit of band cone tooth, it is characterised in that including joint (12), fixation is located at joint (12)
Drill body (14) that is upper or being integrated with joint (12), and the center line of the center line of the drill body (14) and joint (12)
It is located on the same line, five wings (5), one end of five wings (5) is fixed with described drill body (14)
The top of drill body (14) is respectively welded at, and the focus of the extension line of five wings (5) is located in drill body (14)
On heart point, five wing (5) other ends are respectively welded on the circumferential surface of drill body (14), the angle between five wings point
Wei not be 71 °, 70 °, 75 °, 76 °, 68 °；The truncated sides of every wing (5) are respectively welded multiple main cutting teeth uniformly arranged
(1) multiple wing cone teeth (8), are welded with by main cutting tooth (1), and wing cone tooth (8) is located between adjacent main cutting tooth (1)
On the extended line of center line, the elevation angle of described main cutting tooth (1) is 15 ° -20 °；Master positioned at multiple main cutting tooth (1) ends
The side of cutting tooth (1) is provided with big fillet surface tooth (9), and the angle of big fillet surface tooth (9) chamfering is 30 ° -45 °, described
Big fillet surface tooth (9) is located on the same line with multiple main cutting teeth (1)；Runner (4) is provided between five wings (5), should
The top of runner (4) is provided with the nozzle water hole (6) with drill body (14) intracavity inter-connection.
A kind of 2. new five wings PDC drill bit of band cone tooth according to claim 1, it is characterised in that described wing
The elevation angles for boring tooth (8) are 15 ° -20 °.
A kind of 3. new five wings PDC drill bit of band cone tooth according to claim 2, it is characterised in that five wings (5)
End be respectively fixedly connected with gage surface (10), the gage surface (10) is fixedly connected with the circumferential surface of drill body (14), institute
The gage surface (10) stated is provided with gauge teeth (2) and curved surface tooth (3), and described gauge teeth (2) is located at cutting for gage surface (10)
Cut the side in direction.
A kind of 4. new five wings PDC drill bit of band cone tooth according to claim 1, it is characterised in that described drill bit
The top center of body (14) is fixed with center cone tooth (7).
A kind of 5. new five wings PDC drill bit of band cone tooth according to claim 3, it is characterised in that the gage surface
(10) back reaming tooth (11) is additionally provided with, the back reaming tooth (11) is located at the end of gauge teeth (2).
A kind of 6. new five wings PDC drill bit of band cone tooth according to claim 1, it is characterised in that described joint
(12) the threaded threaded rod of a tool (13), and the center line position of the threaded rod (13) and joint (12) are fixedly connected with below
In on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720460489.XU CN206903589U (en) | 2017-04-28 | 2017-04-28 | A kind of new five wings PDC drill bit of band cone tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720460489.XU CN206903589U (en) | 2017-04-28 | 2017-04-28 | A kind of new five wings PDC drill bit of band cone tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903589U true CN206903589U (en) | 2018-01-19 |
Family
ID=61291319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720460489.XU Active CN206903589U (en) | 2017-04-28 | 2017-04-28 | A kind of new five wings PDC drill bit of band cone tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538128A (en) * | 2019-01-18 | 2019-03-29 | 沧州格锐特钻头有限公司 | A kind of shockproof PDC drill bit |
| CN112302542A (en) * | 2020-10-30 | 2021-02-02 | 中国石油大学(北京) | PDC drill bit |
-
2017
- 2017-04-28 CN CN201720460489.XU patent/CN206903589U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538128A (en) * | 2019-01-18 | 2019-03-29 | 沧州格锐特钻头有限公司 | A kind of shockproof PDC drill bit |
| CN109538128B (en) * | 2019-01-18 | 2024-04-02 | 沧州格锐特钻头有限公司 | Shockproof PDC drill bit |
| CN112302542A (en) * | 2020-10-30 | 2021-02-02 | 中国石油大学(北京) | PDC drill bit |
| CN112302542B (en) * | 2020-10-30 | 2022-03-22 | 中国石油大学(北京) | PDC drill bit |
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