CN206190792U - Furthermore, - Google Patents
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- CN206190792U CN206190792U CN201621234602.4U CN201621234602U CN206190792U CN 206190792 U CN206190792 U CN 206190792U CN 201621234602 U CN201621234602 U CN 201621234602U CN 206190792 U CN206190792 U CN 206190792U
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- inner tube
- top connection
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- damping
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Abstract
The utility model relates to a shock absorber, concretely relates to furthermore, , including center tube, top connection, lock nut, inner tube and lower clutch, the top connection is installed to the threaded one end of center tube, and the lower clutch is installed to the other end screw thread of center tube, is provided with the inner tube in the center tube, and in the one end of inner tube extended to the lower clutch, in the other end of inner tube extended to the top connection, the inner tube end that extends to the top connection was passed through lock nut and is connected with last connector thread, damping particle is equipped with in cavity intussuseption between inner tube and the center tube. The utility model discloses in the working process, the vibration transmission of drilling string arrives in the pit during this damping shock absorber, between the damping particle in the cavity and the mutual collision between damping particle and the cavity wall play the effect of consumed energy with rubbing, reach the damping effect, the granule still receives the effect of centrifugal force and gravity simultaneously, can further exert its collision and friction energy dissipation's effect, thereby the vibration energy of lower part drilling tool of having significantly reduced transmits on the drilling rod.
Description
Technical field
The utility model is related to a kind of shock absorber；Specifically related to a kind of down-hole equipment particle damped vibration attenuation device.
Background technology
In oil gas well drilling work progress, the always very prominent big problem of drill string vibration.Drill string vibration is given sometimes
Construction brings considerable influence and harm, is mainly manifested in：Influence drilling speed, drill bit and drilling tool premature abrasion or damage, cause BHA
（DHA）Disabler or failure, interference downhole instrument normal work even cause damage etc. to instrument.Solve at present
The certainly measure of down-hole equipment vibration problem mainly has two major classes：One is by adjusting parameters of construction technology（As drilling mud performance,
Drilling speed etc.）Drill string vibration is reduced, belongs to active damping；Two is to reduce drill string vibration by installing various vibration absorbers in underground
The influence of generation, belongs to passive vibration damping.In wellbore construction, technological parameter is restricted by many conditions, is sometimes difficult to take into account
To vibration damping problem, and effect is not also obvious.Existing underground vibration absorber is mainly mechanically（By flexible member）Vibration damping
With fluid pressure type vibration damping, this kind of device influenceed larger by adverse circumstances such as downhole temperature, pressure in use, and the life-span is shorter, reliable
Property the general more complicated, effect of not high and structure it is also unsatisfactory.
The content of the invention
The purpose of this utility model is：There is provided that a kind of simple structure, reliability are high, installation site is flexible, easy to use,
Long lifespan, can effectively reduce the harm of drill string vibration in oil gas well drilling construction, and effectiveness in vibration suppression does not receive underground mal-condition shadow
Loud down-hole equipment particle damped vibration attenuation device.
The technical solution of the utility model is：
A kind of down-hole equipment particle damped vibration attenuation device, including central tube, top connection, locking nut, inner tube and lower contact, its
It is characterised by：The threaded one end of central tube is provided with top connection, and the other end screw thread of central tube is provided with lower contact, in central tube
Inner tube is provided with, one end of inner tube is extended in lower contact, and the other end of inner tube is extended in top connection, extends to top connection
Inner tube termination is threadedly coupled by locking nut with top connection；Damping particles are filled with chamber between inner tube and central tube.
Graphite establishment filler is respectively arranged between described top connection and inner tube and lower contact and inner tube between.
Described damping particles are spheric granules or spheroid shape particle, and particle size range is 1mm-5mm, and damping particles can be
Single particle size, or polygamy level particle diameter.
Described damping particles are the good metal material of absorbing, nonmetallic materials or composite.
Described damping particles are the one kind in spheroidal graphite cast-iron, high tenacity ceramics, iron base composite material.
The beneficial effects of the utility model are：
The installation site of the down-hole equipment particle damped vibration attenuation device in underground is very flexible, directly can be connected with drill bit
Connect；Can also be connected between drill collar and drill collar；Can also be used cooperatively with DHA, be connected in BHA；Together
When also have a kind of purposes be downhole drill instrument upper and lower side respectively connect a down-hole equipment particle damped vibration attenuation device, to brill
Instrument plays a protective role, in the course of work, when the vibration of underground drill stem is delivered to the described damping shock absorber, and the resistance in cavity
Consumed energy is played a part of in mutual collision and friction between Buddhist nun's particle and between damping particles and cavity wall, reaches and subtracts
Shake effect；Particle is also acted on by centrifugal force and gravity simultaneously, can further play its collision and the effect of friction energy-dissipating；From
And the vibrational energy for greatly reducing lower drilling tool is delivered on drilling rod.
Brief description of the drawings
Fig. 1 is cross section structure diagram of the present utility model；
Fig. 2 is the schematic diagram of mounting means of the present utility model 1；
Fig. 3 is the schematic diagram of mounting means of the present utility model 2；
Fig. 4 is the schematic diagram of mounting means of the present utility model 3.
In figure：1st, top connection, 2, locking nut, 3,4, inner tube, 5, central tube, 6, damping particles, 7, lower contact.
Specific embodiment
The down-hole equipment particle damped vibration attenuation device includes central tube 5, top connection 1, locking nut 2, inner tube 4 and lower contact 7.
The threaded one end of central tube 5 is provided with top connection 1, and the other end screw thread of central tube 5 is provided with lower contact 7, central tube 5 and sets
The one end for having inner tube 4, inner tube 4 is extended in lower contact 7, and the other end of inner tube 4 is extended in top connection 1, extends to top connection 1
The termination of inner tube 4 be threadedly coupled with top connection 1 by locking nut 2；Thus composition one is close between inner tube 4 and central tube 5
The chamber for closing, damping particles 6 are filled with the chamber formed between inner tube 4 and central tube 5；The filling out in chamber of damping particles 6
It is 70% -90% to fill rate scope.Mutual collision between the particle of chamber internal damping particle 6 and between particle and chamber wall
Play a part of consumed energy with friction, reach effectiveness in vibration suppression；Particle is also acted on by centrifugal force and gravity simultaneously, can enter one
Step plays its collision and the effect of friction energy-dissipating.
Filling rate of the damping particles 6 in chamber is controlled by weight method, i.e., calculated by inner tube by physical dimension
4th, the volume of effective airtight cavity that central tube 5, top connection 1 and lower contact 7 are constituted, then being calculated by filling rate needs obturator
Product, the density that the packing volume is multiplied by damping particles 6 is the gross mass of damping particles 6 that need to be filled.
Damping particles 6 are spheric granules or spheroid shape particle, and particle size range is 1mm-5mm, and damping particles can be single
Particle diameter, or polygamy level particle diameter.The material of damping particles 6 is the good metal material of absorbing, nonmetallic materials or composite,
Metal material such as spheroidal graphite cast-iron, nonmetallic materials such as high tenacity ceramics, composite such as iron base composite material etc..
Graphite establishment is respectively arranged between the top connection of the damping shock absorber and inner tube 4 and lower contact 7 and inner tube 4 between
Filler 3, seals with to chamber.
When the damping shock absorber is used, it is connected with underground drill stem respectively by top connection 1 and lower contact 7, with the effect of transmitting
Power and moment of torsion.
The damping shock absorber directly can be connected with drill bit；Can also be connected between drill collar and drill collar；Can also be with well
Lower BHA is used cooperatively, and is connected in BHA；Also a kind of purposes is the upper and lower side in downhole drill instrument simultaneously
A down-hole equipment particle damped vibration attenuation device is respectively connected, to being played a protective role with brill instrument.
Specific mounting means 1：
As shown in Fig. 2 from top to down be respectively drill collar 1A, down-hole equipment particle damped vibration attenuation device 2A, crossover sub 3A and
Drill bit 4A.Down-hole equipment particle damped vibration attenuation device 2A is directly connected by crossover sub 3A with bottom drill bit 4A, drill bit 4A broken rocks
The vibrational energy of generation is communicated up being to be partially absorbed and consuming by down-hole equipment particle damped vibration attenuation device 2A, so that effectively
Reduce to be communicated up to the vibration of drill bit 4A.
Specific mounting means 2：
As shown in figure 3, be respectively drill collar 1B, down-hole equipment particle damped vibration attenuation device 2B from top to down, with boring instrument 3B, well
Lower drilling tool particle damped vibration attenuation device 4B and drill collar 5B.Underground is provided with during with boring instrument 3B, and harmful vibration can be disturbed with brill instrument
Device 3B normal works even produce destruction, therefore can be hindered down-hole equipment particle is respectively installed with the upper and lower end for boring instrument 3B
Buddhist nun shock absorber 2B and 4B, so that the vibration for effectively reducing upper and lower drilling tool is delivered to instrument 3B is bored, so as to being risen with brill instrument 3B
To protective effect.
Specific mounting means 3：
As shown in figure 4, be respectively drilling rod/drill collar from top to down replaces installation with down-hole equipment particle damped vibration attenuation device.Bore
Bar 1C is connected with down-hole equipment particle damped vibration attenuation 2C, and down-hole equipment particle damped vibration attenuation 6C is connected with drill collar 7C, is bored with underground
Tool particle damped vibration attenuation 4C connected drill string 3C, 5C can be drilling rod, can also be drill collar.Come to the vibration of lower drilling tool, warp
After crossing the installation example shown in Fig. 4, down-hole equipment particle damped vibration attenuation device 6C, 4C, 2C that vibration is alternately installed absorb, so that
The vibrational energy for greatly reducing lower drilling tool is delivered on drilling rod.
Claims (5)
1. a kind of down-hole equipment particle damped vibration attenuation device, including central tube（5）, top connection（1）, locking nut（2）, inner tube（4）
And lower contact（7）, it is characterised in that：Central tube（5）Threaded one end top connection is installed（1）, central tube（5）Other end spiral shell
Line is provided with lower contact（7）, central tube（5）Inside it is provided with inner tube（4）, inner tube（4）One end extend to lower contact（7）It is interior, it is interior
Pipe（4）The other end extend to top connection（1）It is interior, extend to top connection（1）Inner tube（4）Termination passes through locking nut（2）With
Top connection（1）Threaded connection；Inner tube（4）With central tube（5）Between be filled with damping particles（6）.
2. a kind of down-hole equipment particle damped vibration attenuation device according to claim 1, it is characterised in that：Described top connection
（1）With inner tube（4）Between and lower contact（7）With inner tube（4）Between be respectively arranged with graphite establishment filler（3）.
3. a kind of down-hole equipment particle damped vibration attenuation device according to claim 1, it is characterised in that：Described damping particles
（6）It is spheric granules or spheroid shape particle, particle size range is 1mm-5mm, damping particles（6）Can be single particle size, or
Polygamy level particle diameter.
4. a kind of down-hole equipment particle damped vibration attenuation device according to claim 1, it is characterised in that：Described damping particles
（6）It is the good metal material of absorbing, nonmetallic materials or composite.
5. a kind of down-hole equipment particle damped vibration attenuation device according to claim 4, it is characterised in that：Described damping particles
（6）It is the one kind in spheroidal graphite cast-iron, high tenacity ceramics, iron base composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234602.4U CN206190792U (en) | 2016-11-17 | 2016-11-17 | Furthermore, |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234602.4U CN206190792U (en) | 2016-11-17 | 2016-11-17 | Furthermore, |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190792U true CN206190792U (en) | 2017-05-24 |
Family
ID=58725853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621234602.4U Expired - Fee Related CN206190792U (en) | 2016-11-17 | 2016-11-17 | Furthermore, |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190792U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438808A (en) * | 2016-11-17 | 2017-02-22 | 长江大学 | Down-hole drilling tool particle damping shock absorber |
| CN111194252A (en) * | 2017-10-02 | 2020-05-22 | 山特维克知识产权股份有限公司 | Tool body comprising a damping device and machining tool having such a tool body |
-
2016
- 2016-11-17 CN CN201621234602.4U patent/CN206190792U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438808A (en) * | 2016-11-17 | 2017-02-22 | 长江大学 | Down-hole drilling tool particle damping shock absorber |
| CN111194252A (en) * | 2017-10-02 | 2020-05-22 | 山特维克知识产权股份有限公司 | Tool body comprising a damping device and machining tool having such a tool body |
| CN111194252B (en) * | 2017-10-02 | 2021-12-03 | 山特维克知识产权股份有限公司 | Tool body comprising a damping device and machining tool having such a tool body |
| US11524340B2 (en) | 2017-10-02 | 2022-12-13 | Sandvik Intellectual Property Ab | Tool body including a damping apparatus and a machining tool having such a tool body |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20191117 |