CN207420461U - A kind of drilling well stall proof instrument - Google Patents
A kind of drilling well stall proof instrument Download PDFInfo
- Publication number
- CN207420461U CN207420461U CN201721162434.7U CN201721162434U CN207420461U CN 207420461 U CN207420461 U CN 207420461U CN 201721162434 U CN201721162434 U CN 201721162434U CN 207420461 U CN207420461 U CN 207420461U
- Authority
- CN
- China
- Prior art keywords
- piston
- housing
- mandrel
- inner sleeve
- drilling well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of drilling well stall proof instrument, including connector, the first housing, inner sleeve, piston, mandrel, the second housing.First housing both ends are removably connected respectively with connector and the second housing.Inner sleeve and piston are located in the first housing, piston outer periphery and the first outer casing inner wall, which are formed, to be coordinated, one end of inner sleeve is removably connected with connector, is inside put on one end away from connector and is located in piston, one end away from inner sleeve is removably connected with mandrel on piston.Mandrel is located in the second housing, and the second outer casing inner wall is equipped with helicla flute, and the middle part of mandrel periphery is equipped with the external spiral that cooperation can be formed with helicla flute.Magnetic damping element is equipped in annular space between first housing and inner sleeve, magnetic damping element matches arranged for interval according to S poles, N poles, and every group of matched magnetic damping element is non-interference.Bearing is equipped between magnetic damping element and piston.Damping element is not easy to fatigue, so as to improve the service life of stall proof instrument.
Description
Technical field
The utility model belongs to petroleum industry machinery technical field, and in particular to a kind of drilling well stall proof instrument.
Background technology
When carrying out heavy duty service using large scale drill assembly, the unusual fluctuations of torque be easy to cause drill string self-excited vibration,
Drilling tool twists off, helicoid hydraulic motor viscous motion, causes the fluctuation for frequently above carrying drilling tool, pump pressure, influences drilling efficiency.Pierce gravel layer,
During the stratum that hardness is big and stability is poor, it may occur that serious bouncing of drilling tool generates drill bit and drilling tool and greatly destroys.At present,
It is general use permanent torque stall proof instrument by beyond set torque when convert rotational motion to move along a straight line, prevent drill bit drill string
Stall.By storing and discharging the abnormal torque generated in drillng operation, it can be achieved that fluctuating adjustment in real time to drilling torque, i.e.,
" disappear peak load " solves PDC drill bit and suppresses bouncing of drilling tool, stick slip problems in hard formation, interlayer.Vibration damping in permanent torque stall proof instrument
Energy-storage travelling wave tube is spring, but spring is compared with fatiguability, so as to influence the working life of permanent torque stall proof instrument.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of drilling well stall proof work
Tool, vibration-reduction energy-storage element is not easily tied, so as to improve the working life of stall proof instrument.
In order to solve the above technical problems, the utility model proposes technical solution be：
A kind of drilling well stall proof instrument, including connector, the first housing, inner sleeve, piston, mandrel and the second housing.Outside first
Set both ends are removably connected respectively with connector and the second housing.Inner sleeve and piston are located in first housing, living
Week forms with the first outer casing inner wall and coordinates beyond the Great Wall, also, one end of inner sleeve is removably connected with connector, inside puts on remote
One end from connector is located in piston, and one end away from inner sleeve is removably connected with mandrel on piston.Mandrel is located at
In second housing, the second outer casing inner wall is equipped with helicla flute, and the middle part of mandrel periphery is equipped with can form the outer of cooperation with helicla flute
Spiral.Magnetic damping element is equipped in annular space between first housing and inner sleeve, magnetic damping element is matched according to S poles, N poles
Arranged for interval, and every group of matched magnetic damping element is non-interference.Bearing is equipped between magnetic damping element and piston.
Drilling well stall proof instrument according to the present invention can be mounted on by connector and mandrel against drill bit in wellbore construction
Drill string on.When the torque of PDC drill bit reaches certain value, can upwards be transported by the screw pair between mandrel and the second housing
Dynamic, torque is converted to axial force, while axial force transmission is overcome the magnetic force of magnetic damping element, compressed more to piston, bearing
The distance between magnetic damping element of group, therefore entire drilling well stall proof instrument is in compressive state, entire well drilling pipe column shortens,
So as to store torque energy, drill bit can gradually be lifted from shaft bottom at this time, until drill bit returns to original rotary speed.When
When the torque of drill bit is reduced, the spacing of multigroup magnetism damping element is recovered, and promotes bearing, piston, passes through mandrel and the second housing
Between screw pair move downward, discharge torque energy, maintain the normal drilling well of drill bit.Compared with prior art, in whole work process
Among, fatigue life of magnetic damping element is not interfered with, so as to improve the working life of stall proof instrument.
For above-mentioned technical proposal, the further improvement that can be also discussed below.
Drilling well stall proof instrument according to the present utility model, it is preferable that the annular space both ends between the first housing and inner sleeve
It is respectively equipped with gasket.By the gasket being arranged between inner sleeve and magnetic damping element between piston and magnetic damping element,
On the one hand can be by the annular space being arranged between inner sleeve and the first housing that magnetic damping element is stablized, it on the other hand can be with
It prevents the collision between magnetic damping element and inner sleeve and piston and generates abrasion, therefore further improve stall proof instrument
Working life.Pass through the height of adjusting gasket, installation number, thus it is possible to vary the precompression of magnetic damper element, for setting work
The parameter of tool.
In one preferred embodiment, piston is equipped with holding screw with the position that mandrel is connected with each other.Pass through tightening
Screw strengthens bonding strength, and it is circumferentially displaced to prevent that piston from occurring with mandrel.
In one preferred embodiment, put on equipped with threaded hole outside second and the plug screw for blocking threaded hole.It can
Lubricating oil is poured into instrument by the threaded hole so that the second housing and the movement of the threaded engagement of mandrel are more smooth, enter well
It is preceding to block the threaded hole using plug screw, it prevents inside the mud entering tool in lubricating oil spilling and pit shaft.
Further, in one preferred embodiment, second one end away from the first housing is put on outside equipped with sealing
Body, and seal is removably connected with the second housing.Stall proof instrument can be realized by the seal of setting
Sealing between drill string is prevented inside the mud entering tool in pit shaft.
Further, one end inner wall away from the second housing is equipped with first sealing device and for accommodating on seal
First seal groove of first sealing device.By setting first sealing device that can further realize existing stall proof instrument and drill string
Between sealing.
In one preferred embodiment, inside put on and be equipped with the second sealing device close to the end periphery of connector and be used for
Accommodate the second seal groove of the second sealing device.By the second sealing device of setting can realize stall proof instrument and drill string it
Between sealing, further prevent inside the mud entering tool in pit shaft.
In one preferred embodiment, the inner wall of end being connected with the inner sleeve on piston is equipped with third sealing device and use
The 4th sealing device and use are equipped in the end periphery being connected on the 3rd seal groove for accommodating third sealing device, piston with mandrel
The 5th sealing device and use are equipped in the inner wall of end being connected on the 4th seal groove for accommodating the 4th sealing device, piston with mandrel
In the 5th seal groove for accommodating the 5th sealing device.Stall proof instrument can be better achieved by multiple sealing devices of setting
Sealing between drill string is further prevented inside the mud entering tool in pit shaft.
Specifically, in one preferred embodiment, magnetic damping element includes magnet piece.The magnetic vibration damping of magnet piece
Component structure is simple, it is not easy to generate fatigue.
In one preferred embodiment, one end away from inner sleeve is equipped with the screw thread being connected with drill string on connector,
One end away from piston is equipped with the screw thread being connected with drill string in mandrel.Using be threadedly coupled etc. dismountable connection mode,
So that entire instrument installation and removal are all simple and fast.
Compared with prior art, the utility model has the advantage of：Spring is replaced with magnetic damping element, it is not easy to tired
Labor, so as to improve the working life of stall proof instrument.
Description of the drawings
The utility model will be hereinafter described in more detail based on embodiment and refer to the attached drawing.Wherein：
Fig. 1 schematically illustrates the extended configuration of the drilling well stall proof instrument of the utility model embodiment；
Fig. 2 schematically illustrates the compressive state of the drilling well stall proof instrument of the utility model embodiment；
Fig. 3 schematically illustrates the mandrel of the utility model embodiment and the mated condition of the second housing.
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not drawn according to actual ratio.
Specific embodiment
Further detailed utility model, but not therefore is made to the utility model below in conjunction with the drawings and specific embodiments
And limit the scope of protection of the utility model.
Fig. 1 schematically illustrates the extended configuration of the drilling well stall proof instrument 10 of the utility model embodiment.Fig. 2 is schematic
Show the compressive state of the drilling well stall proof instrument 10 of the utility model embodiment.Fig. 3 schematically illustrates the utility model
The mandrel of embodiment and the mated condition of the second housing.As shown in Figure 1 to Figure 3, the drilling well stall proof instrument of the embodiment of the present invention
10, including connector 1, the first housing 2, inner sleeve 3, piston 4,5 and second housing 6 of mandrel.First housing, 2 both ends respectively with connector 1
It is connected with the second housing 6 in a manner that threaded connection etc. is dismountable.Inner sleeve 3 and piston 4 are located in the first housing 2,4 periphery of piston
It is formed and coordinated with 2 inner wall of the first housing, also, one end of inner sleeve 3 is connected with connector 1 in a manner that threaded connection etc. is dismountable,
Be located in inner sleeve 3 away from one end of connector 1 in piston 4, on piston 4 one end of separate inner sleeve 3 with mandrel 5 be threadedly coupled etc. can
The mode of dismounting connects.Mandrel 5 is located in the second housing 6, and 6 inner wall of the second housing is equipped with helicla flute, and mandrel is set in the middle part of 5 periphery
The external spiral of cooperation can be formed with helicla flute by having.Magnetic damping element is equipped in annular space between first housing 2 and inner sleeve 3
7, magnetic damping element 7 matches arranged for interval according to S poles, N poles, and every group of matched magnetic damping element 7 is non-interference.Magnetic
Property damping element 7 and piston 4 between be equipped with bearing 8.The drilling well stall proof instrument of the embodiment of the present invention, can lead in wellbore construction
It crosses connector and mandrel is mounted on the drill string of drill bit.When the torque of PDC drill bit reaches certain value, can by mandrel with
Screw pair between second housing moves upwards, and torque is converted to axial force, while by axial force transmission to piston, bearing, gram
The magnetic force of the magnetic damping element of clothes compresses the distance between multigroup magnetic damping element, therefore at entire drilling well stall proof instrument
In compressive state, entire well drilling pipe column shortens, and so as to store torque energy, drill bit can gradually be lifted from shaft bottom at this time,
Until drill bit returns to original rotary speed.When the torque of drill bit is reduced, the spacing of multigroup magnetism damping element is recovered, and promotes
Bearing, piston are moved downward by mandrel and the screw pair of the second outer inner room, discharge torque energy, maintain the normal drilling well of drill bit.
Compared with prior art, among whole work process, the fatigue life of magnetic damping element is not interfered with, it is anti-so as to improve
The working life of stall instrument.And influenced by conditions down-hole smaller, vibration-reduction energy-storage effect is good, small to sealing requirements.Tool
Body, in one preferred embodiment, magnetic damping element includes magnet piece.Magnet piece is as magnetic damping element structure
Simply, it is not easy to generate fatigue.Internal diameter, the outer diameter of magnet piece determine by the specification of drilling well stall proof instrument, specifically, by
The internal diameter of first housing, the outer diameter limitation of inner sleeve, the thickness of magnet piece, quantity depend on duty requirements, can freely adjust.
As depicted in figs. 1 and 2, the drilling well stall proof instrument 10 of the utility model embodiment, it is preferable that the first housing 2 with
Annular space both ends between inner sleeve 3 are respectively equipped with gasket 9.By being arranged between inner sleeve and magnetic damping element and bearing and magnetic
Gasket between property damping element, on the one hand can stablize magnetic damping element is arranged between inner sleeve and the first housing
In annular space, it on the other hand can prevent the collision between magnetic damping element and inner sleeve and piston and generate abrasion, therefore into
One step improves the working life of stall proof instrument.Pass through the height of adjusting gasket, installation number, thus it is possible to vary magnetic damping member
The precompression of part, for the parameter of setting means.
In one preferred embodiment, as depicted in figs. 1 and 2, the position that piston 4 is connected with each other with mandrel 5 is equipped with
Holding screw 41.Bonding strength is strengthened by holding screw, it is circumferentially displaced to prevent that piston from occurring with mandrel.It is preferred real at one
It applies in mode, the second housing 6 is equipped with threaded hole 61 and the plug screw 62 for blocking threaded hole 61.It can be by the threaded hole to work
Lubricating oil is poured into tool so that the second housing and the movement of the threaded engagement of mandrel are more smooth, enter and block this using plug screw after well
Threaded hole is prevented inside the mud entering tool in lubricating oil spilling and pit shaft.
As depicted in figs. 1 and 2, further, in one preferred embodiment, outside separate first on the second housing 6
One end of set 2 is equipped with seal 101, and seal 101 is connected in a manner that threaded connection etc. is dismountable with the second housing 6.
Sealing between stall proof instrument and drill string can be realized by the seal of setting, prevented in the mud entering tool in pit shaft
Portion.Further, one end inner wall away from the second housing 6 is equipped with first sealing device 1011 and is used on seal 101
Accommodate the first seal groove 1012 of first sealing device 1011.By setting first sealing device that can further realize now anti-mistake
Sealing between fast instrument and drill string.
As depicted in figs. 1 and 2, in one preferred embodiment, the end periphery in inner sleeve 3 close to connector 1 is equipped with
Second sealing device 31 and the second seal groove 32 for accommodating the second sealing device 31.It can by the second sealing device of setting
To realize the sealing between stall proof instrument and drill string, further prevent inside the mud entering tool in pit shaft.It is excellent at one
In the embodiment of choosing, the end periphery being connected on piston 4 with inner sleeve 3 is equipped with the 3rd close device 42 and for accommodating the 3rd sealing
3rd seal groove 43 of device 42, the end periphery being connected with 5 mandrels on piston 4 are equipped with the 4th sealing device 44 and for accommodating
4th seal groove 45 of the 4th sealing device 44, the inner wall of end being connected with the mandrel 5 on piston 4 are equipped with the 5th sealing device
46 and for accommodate the 5th sealing device 46 the 5th seal groove 47.It can be better achieved by multiple sealing devices of setting
Sealing between stall proof instrument and drill string is further prevented inside the mud entering tool in pit shaft.
In one preferred embodiment, one end away from inner sleeve 3 is equipped with the spiral shell being connected with drill string on connector 1
Line, one end away from piston 4 is equipped with the screw thread being connected with drill string in mandrel 5.Using dismountable connection such as threaded connection
Mode so that entire instrument installation and removal are all simple and fast.
According to above-described embodiment, it is seen then that drilling well stall proof instrument according to the present utility model is replaced with magnetic damping element
Spring, it is not easy to fatigue, so as to improve the working life of stall proof instrument.And it is influenced smaller, is subtracted by conditions down-hole
Energy storage effect of shaking is good, small to sealing requirements.
Although the present utility model has been described by reference to the preferred embodiments, but the scope of the utility model is not being departed from
In the case of, various improvement can be carried out to it and component therein can be replaced with equivalent.Especially, as long as being not present
Structural conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The utility model is simultaneously
It is not limited to specific embodiment disclosed herein, but all technical solutions including falling within the scope of the claims.
Claims (10)
1. a kind of drilling well stall proof instrument, which is characterized in that outside including connector, the first housing, inner sleeve, piston, mandrel and second
Set；
The first housing both ends are removably connected respectively with the connector and second housing；
The inner sleeve and the piston are located in first housing, and the piston outer periphery is matched somebody with somebody with first outer casing inner wall formation
Close, also, one end of the inner sleeve is removably connected with the connector, it is described in put on the one of the separate connector
End is located in the piston, and one end away from the inner sleeve is removably connected with the mandrel on the piston；
The mandrel is located in second housing, and second outer casing inner wall is equipped with helicla flute, the middle part of the mandrel periphery
Equipped with the external spiral that cooperation can be formed with the helicla flute；
Be equipped with magnetic damping element in annular space between first housing and the inner sleeve, the magnetism damping element according to
S poles, N poles matching arranged for interval, and every group of matched magnetic damping element is non-interference；The magnetic element and the piston
Between be equipped with bearing.
2. drilling well stall proof instrument according to claim 1, which is characterized in that between first housing and the inner sleeve
Annular space both ends be respectively equipped with gasket.
3. drilling well stall proof instrument according to claim 1 or 2, which is characterized in that the piston and the mandrel are mutual
The position of connection is equipped with holding screw.
4. drilling well stall proof instrument according to claim 1 or 2, which is characterized in that put on outside described second equipped with screw thread
Hole and the plug screw for blocking the threaded hole.
5. drilling well stall proof instrument according to claim 1 or 2, which is characterized in that put on outside described second away from described
One end of first housing is equipped with seal, and the seal is removably connected with second housing.
6. drilling well stall proof instrument according to claim 5, which is characterized in that outside separate described second on the seal
The inner wall of one end of set is equipped with first sealing device and the first seal groove for accommodating the first sealing device.
7. drilling well stall proof instrument according to claim 1 or 2, which is characterized in that put in described close to the connector
End periphery be equipped with the second sealing device and the second seal groove for accommodating second sealing device.
8. drilling well stall proof instrument according to claim 1 or 2, which is characterized in that connect on the piston with the inner sleeve
The inner wall of end connect is equipped with third sealing device and the 3rd seal groove for accommodating the third sealing device, on the piston
The end periphery being connected with the mandrel is equipped with the 4th sealing device and for accommodating the 4th of the 4th sealing device the sealing
Slot, the inner wall of end being connected with the mandrel on the piston are equipped with the 5th sealing device and for accommodating the 5th sealing dress
The 5th seal groove put.
9. drilling well stall proof instrument according to claim 1 or 2, which is characterized in that the magnetism damping element includes magnetic
Iron.
10. drilling well stall proof instrument according to claim 1 or 2, which is characterized in that away from the inner sleeve on the connector
One end be equipped with for the screw thread that is connected with drill string, one end away from the piston is equipped with to be connected with drill string in the mandrel
Screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721162434.7U CN207420461U (en) | 2017-09-11 | 2017-09-11 | A kind of drilling well stall proof instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721162434.7U CN207420461U (en) | 2017-09-11 | 2017-09-11 | A kind of drilling well stall proof instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420461U true CN207420461U (en) | 2018-05-29 |
Family
ID=62316099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721162434.7U Active CN207420461U (en) | 2017-09-11 | 2017-09-11 | A kind of drilling well stall proof instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207420461U (en) |
-
2017
- 2017-09-11 CN CN201721162434.7U patent/CN207420461U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104847259B (en) | A kind of power drilling tool rotary impact speed enhancing apparatus | |
| CN105672885B (en) | Turbo-power formula double acting hydraulic oscillation drag reduction drilling tool | |
| CN105332655B (en) | A kind of three-dimensional hydraulic oscillator | |
| CN102140893A (en) | Magnetorheological intelligent drilling vibration damper | |
| CN106522843B (en) | A kind of drilling well hydro powered oscillator and application method | |
| CN114109252B (en) | Control device for realizing full rotation orientation of drill string | |
| CN103470189A (en) | Body-open type drilling bucket and rotary drilling rig | |
| CN207420461U (en) | A kind of drilling well stall proof instrument | |
| CN203321322U (en) | Friction resistance reducing tool capable of extending drilling footage | |
| CN206190253U (en) | Two -way jar accelerator of machinery hydraulic pressure | |
| CN107246238B (en) | Integrated impact downhole power drilling tool | |
| CN104563857A (en) | Brake-resistant device for PDC (polycrystalline diamond composite) drill bit | |
| CN106761481B (en) | A kind of automatic adjustment bit pressure tool | |
| CN208416451U (en) | Novel hydropower vibration excitor | |
| CN106499357A (en) | Hydroscillator | |
| CN104695853B (en) | A kind of screw drilling tool motor and the helicoid hydraulic motor with the motor | |
| CN205778593U (en) | A kind of anti-galling drilling tool thread joint | |
| CN205977169U (en) | Striking formula oil pipe blanking plug | |
| CN108678673A (en) | Novel hydropower vibrator | |
| CN202544789U (en) | While-drilling jar | |
| CN208107063U (en) | A kind of drilling well stall proof tool based on cylinder slot body energy storage | |
| CN210343256U (en) | Multifunctional drilling tool combination for petroleum drilling | |
| CN201661250U (en) | Drill collar capable of relieving stick-slip phenomenon | |
| CN202360020U (en) | Floating device of drilling and exploring machine | |
| CN202215161U (en) | Drill column friction and resistance preventing joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |