CN207092947U - A kind of drilling speed device with composite drill bit - Google Patents
A kind of drilling speed device with composite drill bit Download PDFInfo
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- CN207092947U CN207092947U CN201720969443.0U CN201720969443U CN207092947U CN 207092947 U CN207092947 U CN 207092947U CN 201720969443 U CN201720969443 U CN 201720969443U CN 207092947 U CN207092947 U CN 207092947U
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Abstract
It the utility model is related to oil and gas well drilling apparatus field, more particularly to a kind of drilling speed device with composite drill bit.Its technical scheme is：A kind of drilling speed device with composite drill bit, including more kinetic energy joints, shell body and screw drive assembly are connected on multifunction conjunction, screw drive assembly is sheathed in shell body, the one end of shell body away from multifunction conjunction is connected with re-drill bit, the one end of screw drive assembly away from multifunction conjunction is connected with pilot bit, and re-drill bit on pilot bit with being provided with hydrophthalmia；Re-drill bit is one kind of diamond bit and rock bit, and pilot bit is one kind of diamond bit and rock bit.The utility model provides a kind of pilot bit and can obtain twin-stage speed-raising so as to the overall drilling speed device for improving rate of penetration, unconspicuous problem that the pilot bit rotating speed for solving existing twin-stage drilling rig is relatively low, drilling raises speed.
Description
Technical field
Oil and gas well drilling apparatus field is the utility model is related to, more particularly to a kind of drilling well with composite drill bit carries
Speed variator.
Background technology
As the increasingly increase of oil-gas field development difficulty and the fast development of drilling technology, oil gas field are wanted to drilling speed
Ask growing day by day, particularly deep-well, ultradeep well, quantity is or not complicated casing programme well (extended reach well, horizontal well, multilateral well etc.)
Disconnected increase, in drilling process, with the increase of drilling well well depth, not only drilling pressure aggravates to shaft bottom chip hold down effect, and bottom
The corresponding increase such as the layer intensity of rock itself, vertical crustal stress, horizontal crustal stress, seat rock drillability are deteriorated, and cause machinery
Rotating speed reduces, and not only have impact on the control of wellbore quality, and seriously affect the drilling period and drilling cost of full well.
Drilling practice shows, in rock break-off process is crept into, because drill bit linear velocity is big, broken rock speed is high, friction mill
Damage is serious, and drill bit core linear velocity is low, and efficiency of breaking rock is low, due to drill bit and the difference of core linear velocity, causes drill bit to be preced with
Portion's serious wear, so bit life is exactly often to be determined by the abrasion of drill bit, cause drilling life of bit short, cause to bore
The waste of head, also has a strong impact on drilling efficiency.Based on this, twin-stage drilling technology is developed, bipolar drilling technology utilizes the first order
The characteristics of small drill bit efficiency of breaking rock is high drills out a small size neck eye, during the large-size drill bit broken rock of the second level, due to broken rock portion
The component of stress has discharged, so as to reduce large-size drill bit broken rock difficulty so that well entirety rate of penetration is improved.
Number of patent application is that CN201621044088.8 utility model patent discloses a kind of twin-stage double-speed well drilling tool.
Mainly solving existing double-step cutting structure bit can only single speed drilling influence drill bit bulk life time and reduction drilling machinery
The problem of speed, it is characterised in that：The shell body screwed connection re-drill bit, the shell body is built with main shaft, on main shaft
End is threaded with pressure cap, and main shaft lower end, which is threaded with, leads a drill bit；There is annular between the shell body and main shaft and pressure cap
Space, the spindle outer wall below the pressure cap are sequentially installed with alignment bearing A, fluid motor, alignment bearing B and thrust bearing；
Described main shaft one end is provided with split channel；A drill bit of leading on re-drill bit with having had hydrophthalmia A, hydrophthalmia B.The twin-stage
Double-speed well drilling tool, drilling machinery drilling speed can be increased substantially, reduce drilling cost.
When turbine motor drives pilot bit, the volumetric efficiency of turbine motor is low, when the highly viscous drilling fluid of high pressure
During by turbine motor, the driving force of turbine motor weakens, and easily causes that turbine motor is stuck or damage.Because fluid motor
The siphon principle that conveying drilling fluid leans in input, its pulsation phenomenon is more obvious, may influence pilot bit directional drilling
Stability.
The patent of invention that number of patent application is CN201310510843.1 discloses a kind of double rotating speed drilling rigs of twin-stage, bag
Include shell body, power assembly, Hooks coupling universal coupling, central shaft, speed change commutation input assembly, speed change commutation conversion assembly, change quick change
To output assembly and two level drill bit, one-level bit adapter.The device is arranged on bottom hole assemblies bottom, utilizes first order bradawl
The characteristics of head broken rock speed is high drills out a small size and leads eye, because rock part stress has discharged, so as to reduce second
Level large-size drill bit broken rock difficulty, is improved well entirety rate of penetration, and be advantageous to direction of deflection and stick-slip is shaken
Dynamic control, for improving deep-well, ultra-deep well drilling speed, extending drill string and drilling life of bit has important actual meaning
Justice.Meanwhile the double rotating speed drilling rigs of twin-stage also have the advantages of simple in construction, easy to operate, to be easily installed, be safe and reliable.
Above-mentioned drilling rig is realized the direction transformation of one-level drill bit and two level drill bit, the rotating speed of one-level drill bit by bevel gear set
Determined by the rotating speed of two level drill bit, internal one-level drill speed is not improved, therefore the drilling rig is to drilling speed
Effect it is limited.
Utility model content
The utility model overcomes the deficiencies in the prior art, there is provided a kind of pilot bit can obtain twin-stage speed-raising so as to overall
The drilling speed device of rate of penetration is improved, the pilot bit rotating speed for solving existing twin-stage drilling rig is relatively low, drilling carries
The unconspicuous problem of speed.
To solve above-mentioned technical problem, the utility model uses following technical scheme：
A kind of drilling speed device with composite drill bit, including multifunction conjunction, it is connected on multifunction conjunction
Shell body and screw drive assembly, screw drive assembly are sheathed in shell body, and the one end of shell body away from multifunction conjunction connects
Re-drill bit is connected to, the one end of screw drive assembly away from multifunction conjunction is connected with pilot bit, and re-drill bit bores with neck eye
Hydrophthalmia is provided with head；Re-drill bit is one kind of diamond bit and rock bit, pilot bit be diamond bit and
One kind of rock bit.
As preferred scheme of the present utility model, some inclined holes, shell body and screw drive are provided with multifunction conjunction
Cavity between assembly connects with inclined hole.
As preferred scheme of the present utility model, the screw drive assembly includes screw rod housing unit and drive component,
Drive component is sheathed in screw rod housing unit；Screw rod housing unit includes stator case, one end of stator case with it is multi-functional
Joint connects, and the other end of stator case is connected with universal shaft housing and bear box in turn, and bear box is sheathed on reamer
In head.
As preferred scheme of the present utility model, the screw drive assembly includes screw rod housing unit and drive component,
Drive component is sheathed in screw rod housing unit；Drive component includes the rotor being sequentially connected, live articulated joint, connecting rod, water cap, biography
Moving axis, the other end of power transmission shaft are connected with pilot bit, and TC is connected between the bear box and power transmission shaft of screw drive assembly
Cover component.
As preferred scheme of the present utility model, runner hole is provided with the water cap, runner is provided with the middle part of power transmission shaft,
Runner hole, the runner of power transmission shaft in water cap, the hydrophthalmia of pilot bit are sequentially communicated.
As preferred scheme of the present utility model, the rotor is connected with anti-lost connecting rod close to one end of multifunction conjunction,
The other end of anti-lost connecting rod is connected with anti-lost locknut, and the limiting stand for preventing drive component from dropping is provided with multifunction conjunction
Rank.
As preferred scheme of the present utility model, the TC sets component includes quiet TC and covers and move TC sets, moves TC set fixed covers
It is located on power transmission shaft, quiet TC sets are movably set in dynamic TC and put, and quiet TC sets are fixedly connected with bear box.
As preferred scheme of the present utility model, some righting structures are provided with the outer wall of the universal shaft housing.
As preferred scheme of the present utility model, the multifunction conjunction is respectively arranged with first close to one end of shell body
Level step and second level step, first order step are threadedly coupled with shell body, and second level step is threadedly coupled with stator case；Tiltedly
Hole is arranged between first order step and second level step, and resistance to punching set is arranged with shell body, and resistance to punching set is located at close to multi-functional
The link position of joint and shell body.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model has certain rotating speed under the driving of external driver device, so as to which multifunction conjunction drives
Shell body and screw drive assembly are rotated together, and rotation is passed to rotor structure by screw drive assembly by stator structure, from
And being connected to the pilot bit on rotor structure has the first step velocity.When drilling fluid enters screw drive assembly, rotor knot
Structure has the second level rotating speed relative to stator structure in the presence of drilling fluid, and therefore, the rotating speed of pilot bit turns for two-stage
The superposition of speed.Pilot bit has larger rotating speed, beneficial to pilot bit fast drilling.
When the rotor structure of screw drive assembly connects pilot bit, the high spy of pilot bit efficiency of breaking rock is made full use of
Point drills out a small size and leads eye, improves core efficiency of breaking rock, then during re-drill bit broken rock, due to rock part stress
Through release, so as to reduce large-size drill bit broken rock difficulty so that well entirety bit speed is improved.It is new by this practicality
The screw drive assembly driving pilot bit of type, the rotating speed of pilot bit can be significantly higher than re-drill bit, therefore, the utility model
There can be more obvious speed-increasing effect relative to common twin-stage drilling rig.
The volumetric efficiency that the utility model is rotated using screw drive assembly driving pilot bit is high, high pressure, Jie
In the case of matter is highly viscous, drilling fluid is stronger to the driving force of rotor.Screw drive assembly is the vacuum principle that input relies on,
Output actually mechanical presses, therefore pulse free at work, are easy to accurate directional drilling.Because drilling fluid viscosity is higher,
Impurity particle is more, and the driving that pilot bit is carried out using screw drive assembly is avoided that blocking or stuck phenomenon occur.
2nd, the cavity between shell body and screw drive assembly connects with inclined hole, therefore, flows through the drilling well of multifunction conjunction
The cavity that liquid energy enters between shell body and screw drive assembly through inclined hole.Drilling fluid will not directly wash away shell body and be driven with screw rod
Bearing between dynamic assembly, avoids the situation that drilling fluid revealed or caused bearing failure at bearing.
3rd, pressure drop is not produced by pilot bit and the drilling fluid of re-drill bit, guarantee by the isolation of screw rod housing unit
Drilling fluid is directly entered screw drive assembly driving pilot bit and rotated, and improves the stabilization of drilling fluid drive screw drives assembly
Property.
4th, when drilling fluid passes through rotor, stator case is intermeshed with rotor, is formed using both helical pitch differences
Helixseal line, while annular seal space is formed, with rotation of the rotor in stator case, annular seal space moves in the axial direction, constantly
Generation and disappearance, complete its energy conversion, so as to constantly drive rotor rotation.Rotor rotates, drive living articulated joint, connecting rod,
Water cap, power transmission shaft, pilot bit rotate, and realize screw drive pilot bit.
5th, the drilling fluid that rotor rotates is driven to enter by runner hole in the runner of power transmission shaft, drilling fluid is again from pilot bit
Hydrophthalmia outflow, drilling fluid play a part of cooling, lubrication, cutting carring.
6th, anti-lost locknut is connected with anti-lost connecting rod, anti-lost locknut can be stuck on the limited step inside multifunction conjunction,
It is avoided that due to the problem of device falls well when abnormal cause causes housing to be broken or thread off.Anti-lost locknut closes drilling fluid simultaneously
After circulation path, pump pressure rise, ground can be made to pinpoint the problems in time, avoid causing the accident.
7th, TC sets are moved and cover rotation relative to quiet TC, avoids and movement interference occurs between re-drill bit and power transmission shaft.
8th, some righting structures are provided with the outer wall of universal shaft housing, righting structure avoids screw drive assembly in shell
Rock in vivo, enhance the stability of pilot bit drilling, ensure the accurate of drilling direction.
9th, shell body and screw drive assembly are connected on multifunction conjunction simultaneously simplifies overall structure.Multifunction conjunction
On inclined hole drilling fluid can be shunted, be applicable to shunting situation, simplify device structure.The resistance to set that rushes is avoided that
For connection screw thread by drilling fluid erosion, the connection between guarantee multifunction conjunction and shell body is reliable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is pilot bit and re-drill bit is the structural representation of diamond bit；
Fig. 3 is sectional view of the present utility model；
Fig. 4 is the structural representation of screw drive assembly；
Fig. 5 is the structural representation of multifunction conjunction；
Fig. 6 is the partial enlarged drawing at A in Fig. 3.
In figure, 1- multifunction conjunctions, 2- shell bodies, 3- screw drive assemblies, 4- re-drill bits, 5- pilot bits, 6- prevents
Fall connecting rod, 11- inclined holes, 12- first order steps, 13- second level step, the resistance to punching sets of 21-, 31- stator cases, the universal axle housings of 32-
Body, 33- bear boxes, 34- rotors, 35- work articulated joints, 36- connecting rods, 37- water caps, 38- power transmission shafts, 39-TC set components, 61-
Anti-lost locknut, the quiet TC sets of 391-, 392- move TC sets.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
The utility model when mounted, is installed from inside to outside, and anti-lost connecting rod 6 is passed through into screw thread and screw drive assembly in advance
3 rotor 34 connects, and is then connected again by the second level step 13 of multifunction conjunction 1 and the stator case 31 of screw drive assembly
Connect.After installing screw drive assembly 3, then from the rear end of multifunctional access 1 anti-lost locknut 61 is connected through a screw thread be fixed on it is anti-lost
On connecting rod 6.Articulated joint 35 living, connecting rod 36, water cap 37 are sequentially connected in the other end of rotor, then stator case is passed through into screw buckle
Connect universal shaft housing.Power transmission shaft 38 is installed in the end of water cap 37, and bear box 33 is connected in the end thread of universal shaft housing 32.
Then, it is connected by the pin thread screw thread of first order step 12 of multifunction conjunction 1 with shell body 2, passes through screw thread in the front end of shell body 2
It is connected with re-drill bit 4, and is sealed between re-drill bit 4 and bear box 33 using sealing ring.Again in power transmission shaft 38, bearing
Quiet TC sets 391, dynamic TC sets 392 are installed between housing 33.Pilot bit 5 is finally arranged on the front end of power transmission shaft 38.
At work, multifunction conjunction 1 drives backspin to drilling rig of the present utility model in upper screw drilling tool output end
Turn, while transmit moment of torsion and rotating speed, multifunction conjunction 1 and then drive shell body 2, re-drill bit 4 to rotate.Multifunction conjunction 1 will
Moment of torsion and rotating speed pass to re-drill bit 2, so as to realize the fractured rock of re-drill bit 2.Meanwhile cleaner for high-pressure drilling fluid enter it is multi-functional
Joint 1, major part drilling fluid flow through from sprue, by anti-lost assembly runner, into screw drive assembly 3, stator case
31 are intermeshed with rotor 34, the helixseal line formed using both helical pitch differences, while form annular seal space, with rotor
34 rotation in stator case 31, annular seal space move in the axial direction, and constantly generation and disappearance, complete its energy conversion, from
And constantly drive rotor 34 to rotate, moment of torsion and rotating speed are passed to by articulated joint 35 living, connecting rod 36, water cap 37, power transmission shaft 38
Pilot bit 5, and then fractured rock.Drilling fluid exports from screw rod assembly to flow out, then flows into universal shaft housing 32 and the shape of connecting rod 36
Into annular fiowpath, by the runner hole opened in water cap 37, into the center flow channels of power transmission shaft 38, into pilot bit 5, then from neck
The hydrophthalmia outflow of eye drill bit 5.The drilling fluid of outflow plays a part of cooling down and lubricated to pilot bit 5, and good protects neck
Eye drill bit 5, while carry unnecessary landwaste.Another part drilling fluid opens up individual uniform oblique through the circumferencial direction of multifunction conjunction 1
Hole 11, flow through the annular space that the housing system that shell body 2 forms with stator case 31, universal shaft housing 32, bear box 33 is formed
Runner, finally being flowed out from the hydrophthalmia of re-drill bit 4, the drilling fluid of outflow plays the role of cooling and lubricating to re-drill bit 4, good
Re-drill bit 4 is protected, while also carries away unnecessary landwaste.By the use of the utility model, pilot bit 5 first drills out one
Section minor diameter leads eye, so that re-drill bit 4 has more a larger scope of freedom in bottom to be drilled, destroys re-drill bit 4 and treats
The stress field on stratum is bored, the reservoir stress on 4 stratum to be drilled of re-drill bit is effectively discharged, so as to effectively improve power auger
Speed, drilling life of bit is effectively improved, drilling cost is greatly reduced, improve drilling well economic benefit.
Embodiment one
As depicted in figs. 1 and 2, the utility model includes multifunction conjunction 1, and shell is connected on multifunction conjunction 1
Body 2 and screw drive assembly 3, screw drive assembly 3 are sheathed in shell body 2, the one end of shell body 2 away from multifunction conjunction 1
Re-drill bit 4 is connected with, the one end of screw drive assembly 3 away from multifunction conjunction 1 is connected with pilot bit 5, re-drill bit 4
With being provided with hydrophthalmia on pilot bit 5；Re-drill bit 4 is one kind of diamond bit and rock bit, and pilot bit 5 is
One kind of diamond bit and rock bit.
The utility model has certain rotating speed under the driving of external driver device, so as to which multifunction conjunction 1 drives
Shell body 2 and screw drive assembly 3 are rotated together, and rotation is passed to rotor structure by screw drive assembly 3 by stator structure,
So as to which the pilot bit 5 being connected on rotor structure has the first step velocity.When drilling fluid enters screw drive assembly 3, turn
Minor structure has the second level rotating speed relative to stator structure in the presence of drilling fluid, and therefore, the rotating speed of pilot bit 5 is two
The superposition of level rotating speed.Pilot bit 5 has larger rotating speed, beneficial to the fast drilling of pilot bit 5.
When the rotor structure of screw drive assembly 3 connects pilot bit 5, make full use of the efficiency of breaking rock of pilot bit 5 high
The characteristics of drill out a small size and lead eye, core efficiency of breaking rock is improved, then during 4 broken rock of re-drill bit, due to the part of rock
Stress has discharged, so as to reduce large-size drill bit broken rock difficulty so that well entirety bit speed is improved.By this
The screw drive assembly 3 of utility model drives pilot bit 5, and the rotating speed of pilot bit 5 can be significantly higher than re-drill bit 4, because
This, the utility model can have more obvious speed-increasing effect relative to common twin-stage drilling rig.
When being crept into different stratum, because lithology is different, the pilot bit 5 of concrete form is according to circumstances selected
With re-drill bit 4, ensure best broken rock drilling effect.Pilot bit 5 and re-drill bit 4 can be diamond bit and gear wheel
One kind of drill bit.
The volumetric efficiency that the utility model drives pilot bit 5 to rotate using screw drive assembly 3 is high, high pressure,
In the case of medium is highly viscous, drilling fluid is stronger to the driving force of rotor 34.Screw drive assembly 3 is the true of input dependence
Empty principle, output actually mechanical presses, therefore pulse free at work, is easy to accurate directional drilling.Because drilling fluid glues
Degree is higher, and impurity particle is more, and the driving that pilot bit 5 is carried out using screw drive assembly 3 is avoided that blocking or stuck phenomenon
Occur.
Embodiment two
On the basis of embodiment one, some inclined holes 11 are provided with the multifunction conjunction 1, shell body 2 and screw rod drive
Cavity between dynamic assembly 3 connects with inclined hole 11.Cavity between shell body 2 and screw drive assembly 3 connects with inclined hole 11, because
This, flows through the cavity that the drilling well liquid energy of multifunction conjunction 1 enters between shell body 2 and screw drive assembly 3 through inclined hole 11.Drilling well
The bearing that liquid will not be directly washed away between shell body 2 and screw drive assembly 3, avoid drilling fluid and reveal or cause at bearing
The situation of bearing failure.
Embodiment three
As shown in figure 4, on the basis of embodiment one or embodiment two, the screw drive assembly 3 includes screw rod housing
Component and drive component, drive component are sheathed in screw rod housing unit；Screw rod housing unit includes stator case 31, stator case
One end of body 31 is connected with multifunction conjunction 1, and the other end of stator case 31 is connected with universal shaft housing 32 and cartridge housing in turn
Body 33, bear box 33 are sheathed in re-drill bit 4.
Pressure drop is not produced by pilot bit 5 and the drilling fluid of re-drill bit 4, guarantee by the isolation of screw rod housing unit
Drilling fluid is directly entered screw drive assembly 3 and drives pilot bit 5 to rotate, and improves the steady of drilling fluid drive screw drives assembly 3
It is qualitative.
Example IV
On the basis of above-mentioned any one embodiment, the screw drive assembly 3 includes screw rod housing unit and driving group
Part, drive component are sheathed in screw rod housing unit；Drive component includes rotor 34, articulated joint 35 living, the connecting rod being sequentially connected
36th, water cap 37, power transmission shaft 38, the other end of power transmission shaft 38 are connected with pilot bit 5, the bear box 33 of screw drive assembly 3
TC set components 39 are connected between power transmission shaft 38.
When drilling fluid passes through rotor 34, stator case 31 is intermeshed with rotor 34, the shape using both helical pitch differences
Into helixseal line, while form annular seal space, with rotation of the rotor 34 in stator case 31, annular seal space axially moves
Dynamic, constantly generation and disappearance, complete its energy conversion, so as to which constantly driving rotor 34 rotates.Rotor 34 rotates, and drives hinge living
Joint 35, connecting rod 36, water cap 37, power transmission shaft 38, pilot bit 5 rotate, and realize the purpose of screw drive pilot bit 5.
Embodiment five
On the basis of above-mentioned any one embodiment, runner hole is provided with the water cap 37, the middle part of power transmission shaft 38 is set
It is equipped with runner, the runner hole, runner, the hydrophthalmia of pilot bit 5 of power transmission shaft 38 in water cap 37 are sequentially communicated.
The drilling fluid that rotor 34 rotates is driven to enter by runner hole in the runner of power transmission shaft 38, drilling fluid bores from neck eye again
First 5 hydrophthalmia outflow, drilling fluid play a part of cooling, lubrication, cutting carring.
Embodiment six
On the basis of above-mentioned any one embodiment, the rotor 34 is connected with anti-close to one end of multifunction conjunction 1
Fall connecting rod 6, the other end of anti-lost connecting rod 6 is connected with anti-lost locknut 61, is provided with multifunction conjunction 1 for preventing drive component
The limited step to drop.
Anti-lost locknut 61 is connected with anti-lost connecting rod 6, anti-lost locknut 61 can be stuck in the limited step inside multifunction conjunction 1
On, it is avoided that due to the problem of device falls well when abnormal cause causes housing to be broken or thread off.The anti-lost closing of locknut 61 is bored simultaneously
After the circulation path of well liquid, pump pressure rise, ground can be made to pinpoint the problems in time, avoid causing the accident.
Embodiment seven
As shown in figure 5, on the basis of above-mentioned any one embodiment, the TC sets component 39 includes quiet TC and covers 391 Hes
Dynamic TC sets 392, dynamic TC sets 392, which are fixed, to be set on power transmission shaft 38, and quiet TC sets 391 are movably set on dynamic TC sets 392, quiet TC
Set 391 is fixedly connected with bear box 33.Dynamic TC sets 392 rotate relative to quiet TC sets 391, avoid re-drill bit 4 and transmission
Movement interference occurs between axle 38.
Embodiment eight
On the basis of above-mentioned any one embodiment, some righting knots are provided with the outer wall of the universal shaft housing 32
Structure.
Some righting structures are provided with the outer wall of universal shaft housing 32, righting structure avoids screw drive assembly 3 outside
Rocked in housing 2, enhance the stability of the drilling of pilot bit 5, ensure the accurate of drilling direction.
Embodiment nine
As shown in figure 3, on the basis of above-mentioned any one embodiment, the multifunction conjunction 1 is close to the one of shell body 2
End is respectively arranged with first order step 12 and second level step 13, and first order step 12 is threadedly coupled with shell body 2, second level platform
Rank 13 is threadedly coupled with stator case 31；Inclined hole 11 is arranged between first order step 12 and second level step 13, in shell body 2
Resistance to punching set 21 is arranged with, resistance to punching set 21 is positioned at 21 close to multifunction conjunction 1 and the link position of shell body 2.
Shell body 2 and screw drive assembly 3 are connected on multifunction conjunction 1 simultaneously, simplify overall structure.Multifunctional access
Inclined hole 11 on first 1 can shunt to drilling fluid, be applicable to the situation of shunting, simplify device structure.Resistance to punching set 21
Connection screw thread is avoided that by drilling fluid erosion, the connection between guarantee multifunction conjunction 1 and shell body 2 is reliable.
Claims (9)
1. a kind of drilling speed device with composite drill bit, it is characterised in that including multifunction conjunction (1), multifunction conjunction
(1) shell body (2) and screw drive assembly (3) are connected on, screw drive assembly (3) is sheathed in shell body (2), outside
The one end of housing (2) away from multifunction conjunction (1) is connected with re-drill bit (4), and screw drive assembly (3) is away from multifunction conjunction
(1) one end is connected with pilot bit (5)；Re-drill bit (4) is one kind of diamond bit and rock bit, pilot bit
(5) it is diamond bit and one kind of rock bit.
2. a kind of drilling speed device with composite drill bit according to claim 1, it is characterised in that described multi-functional
Some inclined holes (11) are provided with joint (1), the cavity between shell body (2) and screw drive assembly (3) connects with inclined hole (11)
It is logical.
A kind of 3. drilling speed device with composite drill bit according to claim 1 or 2, it is characterised in that the spiral shell
Bar drive assembly (3) includes screw rod housing unit and drive component, and drive component is sheathed in screw rod housing unit；Screw rod housing
Component includes stator case (31), and one end of stator case (31) is connected with multifunction conjunction (1), stator case (31) it is another
End is connected with universal shaft housing (32) and bear box (33) in turn, and bear box (33) is sheathed in re-drill bit (4).
4. a kind of drilling speed device with composite drill bit according to claim 1, it is characterised in that the screw rod drives
Dynamic assembly (3) includes screw rod housing unit and drive component, and drive component is sheathed in screw rod housing unit；Drive component includes
The rotor (34) that is sequentially connected, articulated joint (35) living, connecting rod (36), water cap (37), power transmission shaft (38), power transmission shaft (38) it is another
End is connected with pilot bit (5), and TC set groups are connected between the bear box (33) and power transmission shaft (38) of screw drive assembly (3)
Part (39).
A kind of 5. drilling speed device with composite drill bit according to claim 4, it is characterised in that the water cap
(37) it is provided with runner hole on, is provided with runner in the middle part of power transmission shaft (38), runner hole, the stream of power transmission shaft (38) in water cap (37)
Road, the hydrophthalmia of pilot bit (5) are sequentially communicated.
6. a kind of drilling speed device with composite drill bit according to claim 4 or 5, it is characterised in that described turn
Sub (34) are connected with anti-lost connecting rod (6) close to one end of multifunction conjunction (1), and the other end of anti-lost connecting rod (6) is connected with anti-lost
Locknut (61), the interior limited step being provided with for preventing drive component from dropping of multifunction conjunction (1).
A kind of 7. drilling speed device with composite drill bit according to claim 4, it is characterised in that the TC set groups
Part (39) includes quiet TC sets (391) and dynamic TC sets (392), and dynamic TC sets (392) fixation is set on power transmission shaft (38), quiet TC sets
(391) it is movably set on dynamic TC sets (392), quiet TC sets (391) are fixedly connected with bear box (33).
A kind of 8. drilling speed device with composite drill bit according to claim 3, it is characterised in that the universal drive shaft
Some righting structures are provided with the outer wall of housing (32).
9. a kind of drilling speed device with composite drill bit according to claim 8, it is characterised in that described multi-functional
Joint (1) is respectively arranged with first order step (12) and second level step (13), first order step close to one end of shell body (2)
(12) it is threadedly coupled with shell body (2), second level step (13) is threadedly coupled with stator case (31)；Inclined hole (11) is arranged at
Between one-level step (12) and second level step (13), shell body (2) is interior to be arranged with resistance to punching set (21), and resistance to punching set (21), which is located at, leans on
The link position of nearly multifunction conjunction (1) and shell body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969443.0U CN207092947U (en) | 2017-08-04 | 2017-08-04 | A kind of drilling speed device with composite drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969443.0U CN207092947U (en) | 2017-08-04 | 2017-08-04 | A kind of drilling speed device with composite drill bit |
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| Publication Number | Publication Date |
|---|---|
| CN207092947U true CN207092947U (en) | 2018-03-13 |
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| CN201720969443.0U Active CN207092947U (en) | 2017-08-04 | 2017-08-04 | A kind of drilling speed device with composite drill bit |
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| CN (1) | CN207092947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386960A (en) * | 2017-08-04 | 2017-11-24 | 四川深远石油钻井工具股份有限公司 | A kind of drilling speed device with composite drill bit |
| CN112196468A (en) * | 2020-10-15 | 2021-01-08 | 东北石油大学 | Hydraulic drive reaming while drilling tool |
-
2017
- 2017-08-04 CN CN201720969443.0U patent/CN207092947U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386960A (en) * | 2017-08-04 | 2017-11-24 | 四川深远石油钻井工具股份有限公司 | A kind of drilling speed device with composite drill bit |
| CN112196468A (en) * | 2020-10-15 | 2021-01-08 | 东北石油大学 | Hydraulic drive reaming while drilling tool |
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