CN207406280U - One kind is non-to wash multiple cone PDC cutter composite drill bit certainly - Google Patents
One kind is non-to wash multiple cone PDC cutter composite drill bit certainly Download PDFInfo
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- CN207406280U CN207406280U CN201721389589.4U CN201721389589U CN207406280U CN 207406280 U CN207406280 U CN 207406280U CN 201721389589 U CN201721389589 U CN 201721389589U CN 207406280 U CN207406280 U CN 207406280U
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- gear wheel
- drill bit
- pdc
- bit
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Abstract
The utility model is related to oil equipment technical fields, and more specifically a kind of non-from multiple cone PDC cutter composite drill bit is washed, screwed connection is respectively arranged with one on the top of bit body, the left and right sides wall of bit body upper end and unloads deduction cap.Gauge body and gear wheel connector it is each there are three, three gauge bodies and gear wheel connector are uniformly alternate to be connected on the outer wall of bit body.Diamond particles, which are inlayed, to be connected on the outer wall of gauge body, and the gear wheel connecting pole mounting groove of gear wheel is sleeved on the gear wheel connection column bottom of gear wheel connector.Bizet is arranged on the bottom of gauge body, and PDC cutting tooths are connected to the bottom of bizet.The rounded bottom for being arranged on PDC cutting tooths of chip space, circumference hydrophthalmia are arranged on the bottom of bit body, and central ports are arranged on the bottom of bizet.Two-stage cutting function is realized using PDC drill bit and rock bit are compound, is improved drilling efficiency, is reduced damage of the stratum to drill bit, improve the service life of drill bit.
Description
Technical field
The utility model is related to oil equipment technical field, non-answered more specifically to a kind of from washing multiple cone PDC cutter
Bench drill head.
Background technology
With the development and innovation of drilling technology, oil drilling tool is also developing step by step.It is early 20th century, hard boring
Begin to use the rock bit with more wearability during stratum and wearability stratum, but rock bit bore shale and
The defects of during other high-ductility stratum, is also denounced by people gradually, and mainly chip hold down causes shaft bottom mud drum, and with brill
The increase of depth sounding degree and bottom pressure, mud drum phenomenon are more serious.In addition, it is cut with the popularization and application and PDC of PDC drill bit
The maturation of tooth technology is cut, fixed cutting tooth PDC drill bit is gradually instead of rock bit.But it is ground in hardpan, interlayer, densification
In the complex drillings operations such as mill property bottom, PDC drill bit can not substitute rock bit.Therefore, bored to play rock bit and PDC
The advantages of head, crushes, slides the rock breaking mechanism of shearing with reference to the superior cutting rock breaking mechanism of PDC drill bit and rock bit impact,
It designs a kind of non-from washing multiple cone PDC cutter composite drill bit.
The content of the invention
The utility model mainly solving the technical problems that：It is non-from multiple cone PDC cutter composite drill bit is washed to provide one kind, uses
PDC drill bit and the compound realization two-stage cutting function of rock bit, the stepped wellbore generation one after the cutting of drill bit two-stage are equivalent
Guide angle, according to fluid mechanics principle, reduce local head loss, efficiently solve shaft bottom landwaste be detained shaft bottom when
Between, improve drilling efficiency；Due to being cut using two-stage, the cutting load of PDC drill bit is effectively shared, has reduced the transverse-vibration of drill bit
It is dynamic, drill bit is enable steadily to creep into, reduces damage of the stratum to drill bit, improves the service life of drill bit.
In order to solve the above technical problems, the utility model is related to oil equipment technical field, it is more specifically a kind of non-
From wash it is multiple cone PDC cutter composite drill bit, including screw thread, unload deduction cap, bit body, gauge body, gear wheel connector, diamond particles,
Gear wheel, bizet, PDC cutting tooths, chip space, circumference hydrophthalmia and central ports.
Gear wheel connector is hollow structure, and gear wheel connector is internally provided with shoe cream room, and the bottom of gear wheel connector is set
It is equipped with gear wheel connecting pole.
Multiple hard-metal inserts are provided on the outer wall of gear wheel, gear wheel is internally provided with gear wheel connecting pole mounting groove, tooth
Card holding trough is provided on the inner wall of wheel connecting pole mounting groove bottom.
Screwed connection is respectively arranged with one on the top of bit body, the left and right sides wall of bit body upper end and unloads deduction cap.
Gauge body and gear wheel connector it is each there are three, the uniform alternate outer wall for being connected to bit body of three gauge bodies and gear wheel connector
On.Diamond particles, which are inlayed, to be connected on the outer wall of gauge body, and the gear wheel connecting pole mounting groove of gear wheel is sleeved on gear wheel connector
Gear wheel connection column bottom.Bizet is arranged on the bottom of gauge body, and PDC cutting tooths are connected to the bottom of bizet.Chip space is in circle
Shape is arranged on the bottom of PDC cutting tooths, and circumference hydrophthalmia is arranged on the bottom of bit body, and central ports are arranged on the bottom of bizet.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
The hard-metal insert stated has multilayer, and multilayer hard carbide button is evenly distributed on the outer wall of gear wheel, and every layer from top to bottom
The diameter of hard-metal insert is sequentially reduced.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
The centre for the screw thread stated is provided through hole, and bit body is hollow structure, the through hole and bit body among the screw thread
Inside is connected.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
The diamond particles stated have multiple, and multiple uniform patchiness of diamond particles are on the outer wall of gauge body.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
It is provided on the outer wall of the bottom for the gear wheel connecting pole stated and is enclosed with the matched protrusion of card holding trough, between gear wheel connector and gear wheel
It can relatively rotate.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
The circumference hydrophthalmia and central ports stated have multiple, and circumference hydrophthalmia and central ports are connected with the inside of bit body.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
The PDC cutting tooths stated have multiple, and multiple PDC cutting tooths are distributed in the edge of bizet bottom.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
The cutting diameter for the diamond particles stated is more than the cutting diameter of gear wheel.
As the further optimization of the technical program, the utility model one kind is non-to wash multiple cone PDC cutter composite drill bit institute certainly
The cutting diameter for the gear wheel stated is more than the cutting diameter of PDC cutting tooths, and is higher than at the top of the wing of the PDC cutting tooths of top side
The working face of the bottom side of PDC cutting tooths.
The utility model is a kind of non-to be had the beneficial effect that from washing multiple cone PDC cutter composite drill bit：
The utility model is a kind of non-from multiple cone PDC cutter composite drill bit is washed, using PDC drill bit and the compound realization of rock bit
Two-stage cutting function, the stepped wellbore after the cutting of drill bit two-stage generates an equivalent guide angle, according to fluid mechanics principle,
Local head loss is reduced, efficiently solves the time that shaft bottom landwaste is detained shaft bottom, improves drilling efficiency；Due to using two-stage
Cutting, has effectively shared the cutting load of PDC drill bit, has reduced the oscillation crosswise of drill bit, drill bit is enable steadily to creep into, reduce
Damage of the stratum to drill bit improves the service life of drill bit.
Description of the drawings
The utility model is described in more detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is that the utility model is a kind of non-from the front view for washing multiple cone PDC cutter composite drill bit.
Fig. 2 is that the utility model is a kind of non-from the left view for washing multiple cone PDC cutter composite drill bit.
Fig. 3 is that the utility model is a kind of non-from the bottom view for washing multiple cone PDC cutter composite drill bit.
Fig. 4 is that the utility model is a kind of non-from the dimensional structure diagram for washing multiple cone PDC cutter composite drill bit.
Fig. 5 is a kind of non-stereochemical structure signal for washing multiple cone PDC cutter composite drill bit certainly in other direction of the utility model
Figure.
Fig. 6 is a kind of non-left view for washing multiple cone PDC cutter composite drill bit certainly after gear wheel 7 is taken down of the utility model.
Fig. 7 is that a kind of non-stereochemical structure for washing multiple cone PDC cutter composite drill bit certainly after gear wheel 7 is taken down of the utility model is shown
It is intended to.
Fig. 8 is a kind of non-front view from the gear wheel 7 for washing multiple cone PDC cutter composite drill bit of the utility model.
Fig. 9 is a kind of non-dimensional structure diagram from the gear wheel 7 for washing multiple cone PDC cutter composite drill bit of the utility model.
Figure 10 is that the utility model is a kind of non-from the gear wheel 7 and gear wheel connecting pole 5-2 for washing multiple cone PDC cutter composite drill bit
Fit structure schematic diagram.
In figure：Screw thread 1 unloads deduction cap 2, bit body 3, gauge body 4, gear wheel connector 5, shoe cream room 5-1, gear wheel connecting pole 5-
2nd, diamond particles 6, gear wheel 7, hard-metal insert 7-1, gear wheel connecting pole mounting groove 7-2, card holding trough 7-3, bizet 8, PDC cuttings
Tooth 9, chip space 10, circumference hydrophthalmia 11, central ports 12.
Specific embodiment
Illustrate present embodiment with reference to Fig. 1-10, the utility model is related to oil equipment technical field, more specifically
Say it is a kind of non-from washing multiple cone PDC cutter composite drill bit, including：Screw thread 1 unloads deduction cap 2, bit body 3, gauge body 4, gear wheel connection
Body 5, diamond particles 6, gear wheel 7, bizet 8, PDC cutting tooths 9, chip space 10, circumference hydrophthalmia 11 and central ports 12.
Gear wheel connector 5 is hollow structure, and gear wheel connector 5 is internally provided with shoe cream room 5-1, gear wheel connector 5
Bottom is provided with gear wheel connecting pole 5-2.
Multiple hard-metal insert 7-1 are provided on the outer wall of gear wheel 7, gear wheel 7 is internally provided with the installation of gear wheel connecting pole
Card holding trough 7-3 is provided on the inner wall of slot 7-2, gear wheel connecting pole mounting groove 7-2 bottom.
Screw thread 1 is connected to the top of bit body 3, and a shackle is respectively arranged on the left and right sides wall of 3 upper end of bit body
Cap 2.The setting of deduction cap 2 is unloaded convenient for the dismounting of entire composite drill bit.There are three gauge body 4 and gear wheel connector 5 are each, three gauges
Body 4 and gear wheel connector 5 are uniformly alternate to be connected on the outer wall of bit body 3.Diamond particles 6, which are inlayed, is connected to gauge body 4
Outer wall on, the gear wheel connecting pole mounting groove 7-2 of gear wheel 7 is sleeved on the gear wheel connecting pole 5-2 bottoms of gear wheel connector 5.Bizet 8
The bottom of gauge body 4 is arranged on, PDC cutting tooths 9 are connected to the bottom of bizet 8.Chip space 10 is rounded to be arranged on PDC cutting tooths
9 bottom, circumference hydrophthalmia 11 are arranged on the bottom of bit body 3, and central ports 12 are arranged on the bottom of bizet 8.The bottom of bizet 8
It is provided with and is covered with tooth.
The hard-metal insert 7-1 has multilayer, and multilayer hard carbide button 7-1 is evenly distributed on the outer wall of gear wheel 7,
And the diameter of every layer of hard-metal insert 7-1 is sequentially reduced from top to bottom.
The centre of the screw thread 1 is provided through hole, and bit body 3 is hollow structure, running through among the screw thread 1
Hole is connected with the inside of bit body 3.
The diamond particles 6 have multiple, and multiple 6 uniform patchiness of diamond particles are in the outer wall of gauge body 4
On.
It is provided on the outer wall of the bottom of the gear wheel connecting pole 5-2 and is enclosed with the matched protrusions of card holding trough 7-3, gear wheel
It can relatively rotate between connector 5 and gear wheel 7.
The circumference hydrophthalmia 11 and central ports 12 have it is multiple, and circumference hydrophthalmia 11 and central ports 12 with brill
The inside of head body 3 is connected.
The PDC cutting tooths 9 have multiple, and multiple PDC cutting tooths 9 are distributed in the edge of 8 bottom of bizet.
The cutting diameter of the diamond particles 6 is more than the cutting diameter of gear wheel 7.
The cutting diameter of the gear wheel 7 is more than the cutting diameter of PDC cutting tooths 9, and the PDC cutting tooths 9 of top side
It is higher than the working face of the bottom side of PDC cutting tooths 9 at the top of wing.
The utility model one kind is non-to wash multiple cone PDC cutter composite drill bit operation principle certainly：
Screw thread 1 is mounted on drilling rod, by drilling rod drive it is non-rotate from washing multiple cone PDC cutter composite drill bit, it is non-from washing
Cone PDC cutter composite drill bit will be contacted with soil again carries out drilling well, since the cutting diameter of gear wheel 7 is more than cutting for PDC cutting tooths 9
Diameter is cut, and is higher than the working face of the bottom side of PDC cutting tooths 9 at the top of the wing of the PDC cutting tooths 9 of top side, so as in drill bit
Actual drilling in, PDC cutting tooths 9 cut at first stratum carry out level-one cutting；Secondly 7 rotary cutting remainder of gear wheel, i.e.,
Rock of borehole is cut, expands wellbore and carries out two level cutting.Stepped wellbore after the cutting of drill bit two-stage generates one and equivalent leads
To angle, according to fluid mechanics principle, local head loss is reduced.And due on the outer wall of the bottom of gear wheel connecting pole 5-2
It is provided with and is enclosed with the matched protrusions of card holding trough 7-3, can be relatively rotated between gear wheel connector 5 and gear wheel 7, therefore tooth
Wheel 7 with entire drill bit revolves round the sun while carry out rotation；Gear wheel 7 rotates fractured rock, gear wheel by hard-metal insert 7-1
It is divided into rotation and revolution two parts during 7 work：Rotation, that is, hard-metal insert 7-1 makees anticlockwise rotation around axis；It is public
The hard-metal insert 7-1 for turning to be fixed on gear wheel 7 makees clockwise rotary motion with it around entire drill axis.Revolution
Depending on speed is by mud motor rotary speed, rotational velocity and revolution speed and tooth are related to the effect in shaft bottom.Drilling well
When drill bit on the bit pressure that is born acted on by gear wheel 7 on rock, also have a shock loading in addition to this static load, this is because boring
Caused by the extensional vibration of head.Drill bit makes drill string constantly compress and uphold, lower drilling string is this in the extensional vibration in shaft bottom
The periodically variable elastic deformation energy of kind is converted into the percussion on stratum by drill teeth with fractured rock, with static load pressure
Enter power and together form impact of the drill bit to stratum, granulitization.Finally drill bit creep into during, diamond particles 6 with
The borehole wall is in contact, and diamond particles 6 play the role of grinding to the borehole wall so that the borehole wall becomes smooth, improves drilling quality；Gold simultaneously
Hard rock particle 6 is in contact with the borehole wall, there is good fixation so that drilling quality is high.It is answered using PDC drill bit and rock bit
It closes and realizes two-stage cutting function, the stepped wellbore after the cutting of drill bit two-stage generates an equivalent guide angle, according to fluid force
Principle is learned, reduces local head loss, efficiently solves the time that shaft bottom landwaste is detained shaft bottom, improves drilling efficiency；Due to
It is cut using two-stage, has effectively shared the cutting load of PDC drill bit, reduced the oscillation crosswise of drill bit, drill bit is enable steadily to bore
Into reducing damage of the stratum to drill bit, improve the service life of drill bit.
Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to
In the scope of protection of the utility model.
Claims (9)
1. it is a kind of non-from multiple cone PDC cutter composite drill bit is washed, including screw thread (1), unload deduction cap (2), bit body (3), gauge body
(4), gear wheel connector (5), diamond particles (6), gear wheel (7), bizet (8), PDC cutting tooths (9), chip space (10), circumference
Hydrophthalmia (11) and central ports (12), it is characterised in that：Gear wheel connector (5) be hollow structure, the inside of gear wheel connector (5)
Shoe cream room (5-1) is provided with, the bottom of gear wheel connector (5) is provided with gear wheel connecting pole (5-2)；
Multiple hard-metal inserts (7-1) are provided on the outer wall of gear wheel (7), gear wheel (7) is internally provided with gear wheel connecting pole peace
Tankage (7-2) is provided with card holding trough (7-3) on the inner wall of gear wheel connecting pole mounting groove (7-2) bottom；
Screw thread (1) is connected to the top of bit body (3), and being respectively arranged with one on the left and right sides wall of bit body (3) upper end unloads
Deduction cap (2)；There are three gauge body (4) and gear wheel connector (5) are each, three gauge bodies (4) and gear wheel connector (5) are uniform alternate
Be connected on the outer wall of bit body (3)；Diamond particles (6), which are inlayed, to be connected on the outer wall of gauge body (4), gear wheel (7)
Gear wheel connecting pole mounting groove (7-2) is sleeved on gear wheel connecting pole (5-2) bottom of gear wheel connector (5)；Bizet (8) is arranged on guarantor
The bottom of footpath body (4), PDC cutting tooths (9) are connected to the bottom of bizet (8)；Chip space (10) is rounded to be arranged on PDC cutting tooths
(9) bottom, circumference hydrophthalmia (11) are arranged on the bottom of bit body (3), and central ports (12) are arranged on the bottom of bizet (8).
2. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The hard
Carbide button (7-1) has multilayer, and multilayer hard carbide button (7-1) is evenly distributed on the outer wall of gear wheel (7), and from top to bottom
The diameter of every layer of hard-metal insert (7-1) is sequentially reduced.
3. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The screw thread
(1) centre is provided through hole, and bit body (3) is hollow structure, through hole and bit body among the screw thread (1)
(3) inside is connected.
4. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The Buddha's warrior attendant
Stone particle (6) has multiple, and the uniform patchiness of multiple diamond particles (6) is on the outer wall of gauge body (4).
5. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The gear wheel
It is provided on the outer wall of the bottom of connecting pole (5-2) and is enclosed with the matched protrusion of card holding trough (7-3), gear wheel connector (5) and tooth
It can relatively rotate between wheel (7).
6. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The circumference
Hydrophthalmia (11) and central ports (12) have it is multiple, and circumference hydrophthalmia (11) and central ports (12) with bit body (3)
Inside is connected.
7. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The PDC is cut
Cutting tooth (9) has multiple, and multiple PDC cutting tooths (9) are distributed in the edge of bizet (8) bottom.
8. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The Buddha's warrior attendant
The cutting diameter of stone particle (6) is more than the cutting diameter of gear wheel (7).
9. one kind according to claim 1 is non-to wash multiple cone PDC cutter composite drill bit certainly, it is characterised in that：The gear wheel
(7) cutting diameter is more than the cutting diameter of PDC cutting tooths (9), and is higher than at the top of the wing of the PDC cutting tooths (9) of top side
The working face of the bottom side of PDC cutting tooths (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389589.4U CN207406280U (en) | 2017-10-26 | 2017-10-26 | One kind is non-to wash multiple cone PDC cutter composite drill bit certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389589.4U CN207406280U (en) | 2017-10-26 | 2017-10-26 | One kind is non-to wash multiple cone PDC cutter composite drill bit certainly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406280U true CN207406280U (en) | 2018-05-25 |
Family
ID=62407733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721389589.4U Expired - Fee Related CN207406280U (en) | 2017-10-26 | 2017-10-26 | One kind is non-to wash multiple cone PDC cutter composite drill bit certainly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406280U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575167A (en) * | 2017-10-26 | 2018-01-12 | 兰州城市学院 | One kind is non-to wash multiple cone PDC cutter composite drill bit certainly |
| CN109681122A (en) * | 2019-03-03 | 2019-04-26 | 兰州城市学院 | A kind of two rank step scraper |
| CN112267838A (en) * | 2020-11-13 | 2021-01-26 | 刘伟 | Efficient rock breaking PDC drill bit |
| CN112302538A (en) * | 2020-11-13 | 2021-02-02 | 刘伟 | PDC-roller composite bit |
-
2017
- 2017-10-26 CN CN201721389589.4U patent/CN207406280U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575167A (en) * | 2017-10-26 | 2018-01-12 | 兰州城市学院 | One kind is non-to wash multiple cone PDC cutter composite drill bit certainly |
| CN109681122A (en) * | 2019-03-03 | 2019-04-26 | 兰州城市学院 | A kind of two rank step scraper |
| CN112267838A (en) * | 2020-11-13 | 2021-01-26 | 刘伟 | Efficient rock breaking PDC drill bit |
| CN112302538A (en) * | 2020-11-13 | 2021-02-02 | 刘伟 | PDC-roller composite bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20211026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |