CN208203155U - The reciprocating absorbing tool of external spring - Google Patents
The reciprocating absorbing tool of external spring Download PDFInfo
- Publication number
- CN208203155U CN208203155U CN201820216994.4U CN201820216994U CN208203155U CN 208203155 U CN208203155 U CN 208203155U CN 201820216994 U CN201820216994 U CN 201820216994U CN 208203155 U CN208203155 U CN 208203155U
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- China
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- central axis
- reciprocating
- swirel
- current limliting
- external spring
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Abstract
The utility model relates to drilling technology fields, it is a kind of reciprocating absorbing tool of external spring, it includes spring and current limliting set, the lower outside in central axis is equipped with the first land, spring base is in the first land, being fixedly connected on the outside of the middle part of central axis by least one driving key can be to the swirel that spring is limited, the lower inside of top connection and the upper outside of swirel are fixedly installed togather, the upper outside of central axis and the lower inside of top connection are mounted and energy axial displacement, inner groove is equipped in the lower inside of central axis, current limliting set is mounted in inner groove and current limliting set and the lower inside of central axis are fixedly installed togather, the internal diameter of current limliting set is less than the internal diameter of central axis.The utility model reasonable and compact in structure, it is easy to use, it is effective to be able to achieve vibration reduction by the way that external spring and drilling hydraulic are differential and absorb, reach the vibration for reducing drill string or drill bit, collapses tooth, drill string damage so as to avoid drill bit, improve rate of penetration.
Description
Technical field
The utility model relates to drilling technology fields, are a kind of reciprocating absorbing tools of external spring.
Background technique
As the increasingly increasing of oil and gas development difficulty and the rapid development of drilling technology, the well that petroleum exploration field is bored are got over
Come deeper, stratum is more and more harder, and the situations such as the lithology hardness on stratum become increasingly complex.When boring stratum as chance, it may appear that
The problems such as drillstring vibrations are strong, drilling period is long and drilling cost is high.In drilling process, force-bearing situation and working environment are abnormal
Badly, drill string axial vibration frequently occurs, and be easy to cause drill bit to collapse tooth, drillstring vibrations damage etc., has seriously affected rate of penetration
And the service life of drill string and drill bit.
Summary of the invention
The utility model provides a kind of reciprocating absorbing tool of external spring, overcomes the defects of the prior art,
It can effectively solve the problem of drill string axial vibration present in drilling process easily causes drill bit to collapse tooth, drill string damage.
The technical solution of the utility model is realized by following measures: a kind of reciprocating absorbing work of external spring
Tool, including top connection, central axis, driving key, spring and current limliting set, the lower outside in central axis are equipped with the first land,
Spring base is fixedly connected with and can be carried out to spring by least one driving key on the outside of the middle part of central axis in the first land
The swirel of limit, the lower inside of top connection and the upper outside of swirel are fixedly installed togather, central axis it is upper
With the limit installation of the lower inside of top connection and energy axial displacement on the outside of portion, inner groove, limit are equipped in the lower inside of central axis
Stream set is mounted in inner groove and current limliting set and the lower inside of central axis are fixedly installed togather, during the internal diameter that current limliting covers is less than
The internal diameter of mandrel.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
Above-mentioned further includes swivel nut, central axis upper outside be equipped with the first annular groove, swivel nut seat on the first annular groove and with
First annular groove is fixedly installed togather, and the inside top connection above swirel is equipped with the second annular groove, outside the lower part of swivel nut
Side, which is equipped with, to be located in the second annular groove and the second land that can move up and down, the upper inner diameter of swirel be greater than the internal diameter of swivel nut and
Less than the internal diameter of the second land.
Above-mentioned to have in the lower inside of central axis equipped with the third land of lower ending opening, current limliting block set is in third land
On, and together with central axis inside thread.
It is above-mentioned can current limiting set lower end be interior hexagonal hole.
It is above-mentioned have at least one sealing ring is fixedly installed between swirel and central axis.
It is above-mentioned to have between top connection and swirel to be threadedly coupled.
The utility model reasonable and compact in structure, it is easy to use, in drilling process, when drill bit is by impact vibration,
Central axis uplink, and swirel and top connection equidirectional movement simultaneously are driven by driving key, spring compresses, and spring is logical
It crosses reaction force and slows down the speed uplink of central axis, to achieve the purpose that absorb vibration, in pressure difference and spring down force
Under the action of, central axis downlink, and spring restores to the original state, to realize reciprocating motion in cycles；Therefore this is practical new
Type effectively can be able to achieve vibration reduction and absorb by the way that spring and drilling hydraulic are differential, reach the vibration for reducing drill string or drill bit
It is dynamic, tooth, drill string damage are collapsed so as to avoid drill bit, improves rate of penetration.
Detailed description of the invention
Attached drawing 1 is schematic diagram of main cross-sectional structure of the best embodiment of the utility model.
Attached drawing 2 is the schematic cross-sectional view in attached drawing 1 at A-A.
Coding in attached drawing is respectively as follows: 1 for top connection, and 2 be swirel, and 3 be center axis, and 4 be driving key, and 5 be spring,
6 be current limliting set, and 7 be the first land, and 8 be swivel nut, and 9 be the first annular groove, and 10 be the second land, and 11 be sealing ring, and 12 be inner groove,
13 be the second annular groove.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 1 is described, such as: front, rear, top, and bottom, left and right positional relationship be according to Figure of description 1
Butut direction determine.
The utility model is further described below with reference to examples and drawings:
As shown in attached drawing 1,2, the reciprocating absorbing tool of the external spring, including top connection 1, central axis 3, driving key 4, bullet
Spring 5 and current limliting set 6, the lower outside in central axis 3 be equipped with the first land 7,5, spring in the first land 7, at center
Being fixedly connected on the outside of the middle part of axis 3 by least one driving key 4 can be to the swirel 2 that spring 5 is limited, top connection
1 lower inside and the upper outside of swirel 2 are fixedly installed togather, under the upper outside and top connection 1 of central axis 3
The installation of portion's inner side limiting-position and energy axial displacement are equipped with inner groove 12 in the lower inside of central axis 3, and current limliting set 6 is mounted on inner ring
In slot 12 and current limliting set 6 and the lower inside of central axis 3 are fixedly installed togather, and the internal diameter of current limliting set 6 is less than the interior of central axis 3
Diameter.
Here, be equipped with screw thread on the inside of the upper end of the lower end inside of central axis 3 and top connection 1, for connect drill collar and
Drill bit；The upper outside of central axis 3 and the lower inside of top connection 1 are mounted together, and central axis 3 is made to realize axial displacement；
It is linked together between central axis 3 and swirel 2 by driving key 4, is circumferentially fixed in the outside of central axis 3 as needed
Mountable six driving keys 4 make central axis 3 that swirel 2 be driven to rotate together to guarantee to be driven effect by driving key 4；
Swirel 2 is mainly used to prevent central axis 3 and top connection 1 from separately rotating, and guarantees that central axis 3 and top connection 1 are equidirectional together
Rotation；Current limliting set 6 mainly when drilling fluid flows through the utility model, plays throttling generation pressure difference and central axis 3 is pushed to move downward,
Generate an additional bit pressure effect；Spring 5 primarily serves the effect of buffering.
When work, the utility model is connected between drill collar and drill bit, with drill string G.I.H, in drilling process
In, when drill bit is by impact vibration, 3 uplink of central axis, and drive swirel 2 and top connection 1 same simultaneously by driving key 4
Direction movement, spring 5 compress, and spring 5 slows down the speed uplink of central axis 3 by reaction force, to reach absorption vibration
Dynamic purpose, under the action of 5 down force of pressure difference and spring, 3 downlink of central axis, and spring 5 restores to the original state, thus real
Now reciprocating motion in cycles；Therefore the utility model can effectively by spring 5 with drilling hydraulic is differential is able to achieve vibration
Reduce and absorb, reach the vibration for reducing drill string or drill bit, collapses tooth, drill string damage so as to avoid drill bit, improve power auger
Speed.
The reciprocating absorbing tool of above-mentioned external spring can be made further optimization and/or improvements according to actual needs:
Further include swivel nut 8 as shown in attached drawing 1,2, is equipped with the first annular groove 9 in the upper outside of central axis 3, swivel nut 8 exists
It is fixedly installed togather on first annular groove 9 and with the first annular groove 9, the second ring is equipped on the inside of the top connection 1 above swirel 2
Slot 13 is equipped with the second land 10 that is located at and in the second annular groove 13 and can move up and down, swirel 2 in the lower outside of swivel nut 8
Upper inner diameter be greater than swivel nut 8 internal diameter and less than the internal diameter of the second land 10.
Here swivel nut 8 can be further ensured that central axis 3 and the equidirectional movement simultaneously of top connection 1.
As shown in attached drawing 1,2, the lower end of the current limliting set 6 is interior hexagonal hole.
As shown in attached drawing 1,2, at least one sealing ring 11 is fixedly installed between the swirel 2 and central axis 3.
Here it be fixedly installed with sealing ring 11 between swirel 2 and central axis 3 can increase between swirel 2 and central axis 3 stating
Leakproofness.
As shown in attached drawing 1,2, it is threadedly coupled between the top connection 1 and swirel 2.Here top connection 1 and anti-rotation
It is attached between connector 2 by screw thread, convenient for the disassembly of the utility model.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (10)
1. a kind of reciprocating absorbing tool of external spring, it is characterised in that including top connection, central axis, driving key, spring and limit
Stream set is equipped with the first land in the lower outside of central axis, and spring base passes through on the outside of the middle part of central axis in the first land
At least one driving key is fixedly connected with can be to the swirel that spring is limited, the lower inside and swirel of top connection
Upper outside be fixedly installed togather, the lower inside of the upper outside of central axis and top connection is mounted and can axial position
It moves, is equipped with inner groove in the lower inside of central axis, current limliting set is mounted in inner groove and in the lower part of current limliting set and central axis
Side is fixedly installed togather, and the internal diameter of current limliting set is less than the internal diameter of central axis.
2. the reciprocating absorbing tool of external spring according to claim 1, it is characterised in that further include swivel nut, in central axis
Upper outside be equipped with the first annular groove, swivel nut seat is fixedly installed togather on the first annular groove and with the first annular groove, in anti-switching
The inside top connection of head top is equipped with the second annular groove, is equipped in the lower outside of swivel nut and is located in the second annular groove and can move up and down
The second land, the upper inner diameter of swirel is greater than the internal diameter of swivel nut and less than the internal diameter of the second land.
3. the reciprocating absorbing tool of external spring according to claim 1 or 2, it is characterised in that under the central axis
The third land of lower ending opening is equipped on the inside of portion, current limliting block set is in third land, and together with central axis inside thread.
4. the reciprocating absorbing tool of external spring according to claim 1 or 2, it is characterised in that the lower end of the current limliting set
For interior hexagonal hole.
5. the reciprocating absorbing tool of external spring according to claim 3, it is characterised in that the lower end of the current limliting set is
Interior hexagonal hole.
6. the reciprocating absorbing tool of external spring described according to claim 1 or 2 or 5, it is characterised in that in the anti-switching
At least one sealing ring is fixedly installed between head and central axis.
7. the reciprocating absorbing tool of external spring according to claim 3, it is characterised in that in the swirel in
At least one sealing ring is fixedly installed between mandrel.
8. the reciprocating absorbing tool of external spring according to claim 4, it is characterised in that in the swirel in
At least one sealing ring is fixedly installed between mandrel.
9. the reciprocating absorbing tool of external spring described according to claim 1 or 2 or 5 or 7 or 8, it is characterised in that on described
It is to be threadedly coupled between connector and swirel.
10. the reciprocating absorbing tool of external spring according to claim 6, it is characterised in that the top connection and anti-switching
It is threaded connection between head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216994.4U CN208203155U (en) | 2018-02-07 | 2018-02-07 | The reciprocating absorbing tool of external spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216994.4U CN208203155U (en) | 2018-02-07 | 2018-02-07 | The reciprocating absorbing tool of external spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203155U true CN208203155U (en) | 2018-12-07 |
Family
ID=64534185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820216994.4U Active CN208203155U (en) | 2018-02-07 | 2018-02-07 | The reciprocating absorbing tool of external spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301787A (en) * | 2018-02-07 | 2018-07-20 | 中国石油集团西部钻探工程有限公司 | The reciprocating absorbing tool of external spring |
| CN111456648A (en) * | 2020-05-22 | 2020-07-28 | 东北石油大学 | Composite shock absorber for PDC drill bit |
-
2018
- 2018-02-07 CN CN201820216994.4U patent/CN208203155U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301787A (en) * | 2018-02-07 | 2018-07-20 | 中国石油集团西部钻探工程有限公司 | The reciprocating absorbing tool of external spring |
| CN111456648A (en) * | 2020-05-22 | 2020-07-28 | 东北石油大学 | Composite shock absorber for PDC drill bit |
| CN111456648B (en) * | 2020-05-22 | 2022-01-07 | 东北石油大学 | Composite shock absorber for PDC drill bit |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201104 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |