CN108301787A - The reciprocating absorbing tool of external spring - Google Patents
The reciprocating absorbing tool of external spring Download PDFInfo
- Publication number
- CN108301787A CN108301787A CN201810124961.1A CN201810124961A CN108301787A CN 108301787 A CN108301787 A CN 108301787A CN 201810124961 A CN201810124961 A CN 201810124961A CN 108301787 A CN108301787 A CN 108301787A
- Authority
- CN
- China
- Prior art keywords
- central shaft
- reciprocating
- current limliting
- external spring
- swirel
- 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.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention 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 shaft is equipped with the first land, spring base is in the first land, being fixedly connected with by least one driving key on the outside of the middle part of central shaft can be to 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 shaft and the lower inside of top connection are mounted and energy axial displacement, it is equipped with inner groove in the lower inside of central shaft, current limliting set is mounted in inner groove and current limliting set and the lower inside of central shaft are fixedly installed togather, the internal diameter of current limliting set is less than the internal diameter of central shaft.Structure of the invention is reasonable and compact, easy to use, effectively realizes vibration reduction and absorption by the differential energy of external spring and drilling hydraulic, reaches the vibration for reducing drill string or drill bit, collapses tooth, drill string damage so as to avoid drill bit, improves rate of penetration.
Description
Technical field
The present invention relates to drilling technology fields, are a kind of reciprocating absorbing tools of external spring.
Background technology
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 and collapses tooth, drillstring vibrations damage etc., has seriously affected rate of penetration
And the service life of drill string and drill bit.
Invention content
The present invention provides a kind of reciprocating absorbing tools of external spring, overcome the deficiency of the above-mentioned prior art, energy
Effectively solve the problems, such as that the drill string axial vibration present in drilling process easily causes drill bit and collapses tooth, drill string damage.
The technical scheme is that realized by following measures：A kind of reciprocating absorbing tool of external spring, packet
Top connection, central shaft, driving key, spring and current limliting set are included, the lower outside in central shaft is equipped with the first land, spring base
In the first land, spring can be limited by being fixedly connected with by least one driving key on the outside of the middle part of central shaft
Swirel, the lower inside of top connection and the upper outside of swirel are fixedly installed togather, the upper outside of central shaft
Lower inside limit installation with top connection and energy axial displacement are equipped with inner groove, current limliting set peace in the lower inside of central shaft
In inner groove and current limliting set and the lower inside of central shaft are fixedly installed togather, and the internal diameter of current limliting set is less than central shaft
Internal diameter.
Here is the further optimization and/or improvements to foregoing invention technical solution：
Above-mentioned further includes swivel nut, is equipped with the first annular groove in the upper outside of central shaft, swivel nut seat is 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, is set in the lower outside of swivel nut
There are the second land that in the second annular groove and can be moved up and down, the upper inner diameter of swirel to be more than the internal diameter of swivel nut and be less than
The internal diameter of second land.
The above-mentioned third land for having the lower inside in central shaft to be equipped with lower ending opening, current limliting block set is in third land
On, and together with central shaft 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 installed between swirel and central shaft.
It is above-mentioned to have between top connection and swirel to be threadedly coupled.
Structure of the invention is reasonable and compact, easy to use, in drilling process, when drill bit is by impact vibration, and center
Axis uplink, and drive swirel and top connection equidirectional movement simultaneously, spring to compress by driving key, spring passes through anti-
Active force slows down the speed uplink of central shaft, to achieve the purpose that absorb vibration, in pressure difference and the work of spring down force
Under, central shaft downlink, and spring restores to the original state, to realize reciprocating motion in cycles；Therefore the present invention can be effective
Can realize that vibration reduces and absorbs, and reaches the vibration for reducing drill string or drill bit, to keep away by the way that spring and drilling hydraulic are differential
Exempt from drill bit and collapsed tooth, drill string damage, improves rate of penetration.
Description of the drawings
Attached drawing 1 is the main view schematic cross-sectional view of preferred embodiment.
Attached drawing 2 is the schematic cross-sectional view at A-A in attached drawing 1.
Coding in attached drawing is respectively：1 is top connection, and 2 be swirel, and axis centered on 3,4 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 implementation mode
The present invention is not limited by following embodiments, can be determined according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to Figure of description 1
Butut mode be described, such as：The position relationship of front, rear, top, and bottom, left and right etc. is the cloth according to Figure of description 1
Figure direction determines.
With reference to embodiment and attached drawing, the invention will be further described：
As shown in attached drawing 1,2, the reciprocating absorbing tool of the external spring, including top connection 1, central shaft 3, driving key 4, spring 5
With current limliting set 6, the lower outside in central shaft 3 is equipped with the first land 7, and 5, spring is in the first land 7, in central shaft 3
Middle part on the outside of by least one driving key 4 be fixedly connected with can 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, the lower part of the upper outside and top connection 1 of central shaft 3
Inner side limiting-position is installed and energy axial displacement, is equipped with inner groove 12 in the lower inside of central shaft 3, current limliting set 6 is mounted on inner groove
In 12 and current limliting set 6 and the lower inside of central shaft 3 are fixedly installed togather, and the internal diameter of current limliting set 6 is less than the interior of central shaft 3
Diameter.
Here, be equipped with screw thread on the inside of the upper end of the lower end inside of central shaft 3 and top connection 1, for connect drill collar and
Drill bit；The upper outside of central shaft 3 and the lower inside of top connection 1 are mounted together, and central shaft 3 is made to realize axial displacement；
It is linked together by driving key 4 between central shaft 3 and swirel 2, is circumferentially fixed in the outside of central shaft 3 as needed
Six driving keys 4 can be installed, to ensure to be driven effect, make central shaft 3 that swirel 2 be driven to rotate together by driving key 4；
Swirel 2 is mainly used to prevent central shaft 3 and top connection 1 from separately rotating, and ensures that central shaft 3 and top connection 1 are equidirectional together
Rotation；Current limliting set 6 mainly when drilling fluid flows through the present invention, plays throttling generation pressure difference and central shaft 3 is pushed to move downward, that is, produce
A raw additional bit pressure effect；Spring 5 primarily serves the effect of buffering.
When work, the present invention is connected between drill collar and drill bit, with drill string G.I.H, in drilling process,
When drill bit is by impact vibration, 3 uplink of central shaft, and swirel 2 and top connection 1 Tongfang simultaneously are driven by driving key 4
To movement, spring 5 compresses, and spring 5 slows down the speed uplink of central shaft 3 by reaction force, absorbs vibration to reach
Purpose, under the action of 5 down force of pressure difference and spring, 3 downlink of central shaft, and spring 5 restore to the original state, to realize
Reciprocating motion in cycles；Therefore the present invention can effectively by spring 5 and drilling hydraulic it is differential can realize vibration reduce with
It absorbs, reaches the vibration for reducing drill string or drill bit, collapse tooth, drill string damage so as to avoid drill bit, improve rate of penetration.
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 shaft 3, swivel nut 8 is first
It is fixedly installed togather on annular groove 9 and with the first annular groove 9,1 inside of top connection above swirel 2 is equipped with the second annular groove
13, it is equipped with the second land 10 that is located at and in the second annular groove 13 and can move up and down in the lower outside of swivel nut 8, swirel 2
Upper inner diameter is more than the internal diameter of swivel nut 8 and the internal diameter less than the second land 10.
Here swivel nut 8 can be further ensured that central shaft 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 installed between the swirel 2 and central shaft 3.
Here it is installed with sealing ring 11 between swirel 2 and central shaft 3 can increase between swirel 2 and central shaft 3 stating
Leakproofness.
It is to be threadedly coupled as shown in attached drawing 1,2, between the top connection 1 and swirel 2.Here top connection 1 and anti-rotation
It is attached by screw thread between connector 2, convenient for the dismounting of the present invention.
The above technical characteristic constitutes highly preferred embodiment of the present invention, is imitated with stronger adaptability and best implementation
Fruit can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
Claims (10)
1. a kind of reciprocating absorbing tool of external spring, it is characterised in that including top connection, central shaft, driving key, spring and limit
Stream set, the lower outside in central shaft are equipped with the first land, and spring base is in the first land, on the outside of the middle part of central shaft
Being fixedly connected with by least one driving key can be to the swirel that spring is limited, the lower inside and anti-rotation of top connection
The upper outside of connector is fixedly installed togather, and the lower inside of the upper outside of central shaft and top connection is mounted and can axis
To displacement, inner groove is equipped in the lower inside of central shaft, current limliting set be mounted in inner groove and current limliting set under central shaft
It is fixedly installed togather on the inside of portion, the internal diameter of current limliting set is less than the internal diameter of central shaft.
2. the reciprocating absorbing tool of external spring according to claim 1, it is characterised in that further include swivel nut, in central shaft
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 more than the internal diameter of swivel nut and the internal diameter less than 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 shaft
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 shaft 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 according to claims 1 or 2 or 5, it is characterised in that in the anti-switching
It is installed at least one sealing ring between head and central shaft.
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 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 installed between mandrel.
9. the reciprocating absorbing tool of external spring according to claims 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 |
|---|---|---|---|
| CN201810124961.1A CN108301787A (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 |
|---|---|---|---|
| CN201810124961.1A CN108301787A (en) | 2018-02-07 | 2018-02-07 | The reciprocating absorbing tool of external spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108301787A true CN108301787A (en) | 2018-07-20 |
Family
ID=62864870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810124961.1A Pending CN108301787A (en) | 2018-02-07 | 2018-02-07 | The reciprocating absorbing tool of external spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108301787A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868657A (en) * | 2018-09-18 | 2018-11-23 | 中国石油集团西部钻探工程有限公司 | Drill bit protective device |
| CN110805398A (en) * | 2018-08-06 | 2020-02-18 | 中国石油化工股份有限公司 | Downhole multi-dimensional vibration self-suppression device and method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4211290A (en) * | 1974-07-11 | 1980-07-08 | Clifford Anderson | Drilling string shock-absorbing tool |
| CN2447515Y (en) * | 2000-07-07 | 2001-09-12 | 西南石油学院 | Vibration-absorbing drill collar for drilling |
| RU65097U1 (en) * | 2007-01-25 | 2007-07-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | MECHANICAL SHOCK ABSORBER |
| CN201661248U (en) * | 2010-03-26 | 2010-12-01 | 西南石油大学 | Drilling bit and drilling string vibration absorption tool |
| CN102536114A (en) * | 2010-12-23 | 2012-07-04 | 中国石油大学(华东) | Mechanical underground vibration-absorption punching drilling tool |
| CN203531790U (en) * | 2013-09-30 | 2014-04-09 | 扬州市油田金达实业有限公司 | Novel drill collar |
| CN104295228A (en) * | 2013-07-16 | 2015-01-21 | 中国石油化工股份有限公司 | Differential pressure reciprocating well drilling impactor and method thereof |
| CN105386730A (en) * | 2015-12-01 | 2016-03-09 | 西南石油大学 | Directional well and horizontal well drill stem extension tool and using method thereof |
| CN205225090U (en) * | 2015-11-11 | 2016-05-11 | 中国石油集团长城钻探工程有限公司 | A buffering short circuit for reducing drilling string vibration damage |
| CN107100541A (en) * | 2017-05-05 | 2017-08-29 | 中国石油大学(华东) | A kind of impact type drilling tool by producing the pressure of the drill disturbance |
| CN107100547A (en) * | 2017-05-05 | 2017-08-29 | 中国石油大学(华东) | A kind of drillstring vibrations couple downhole well tool with waterpower pulse |
| CN208203155U (en) * | 2018-02-07 | 2018-12-07 | 中国石油集团西部钻探工程有限公司 | The reciprocating absorbing tool of external spring |
-
2018
- 2018-02-07 CN CN201810124961.1A patent/CN108301787A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4211290A (en) * | 1974-07-11 | 1980-07-08 | Clifford Anderson | Drilling string shock-absorbing tool |
| CN2447515Y (en) * | 2000-07-07 | 2001-09-12 | 西南石油学院 | Vibration-absorbing drill collar for drilling |
| RU65097U1 (en) * | 2007-01-25 | 2007-07-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | MECHANICAL SHOCK ABSORBER |
| CN201661248U (en) * | 2010-03-26 | 2010-12-01 | 西南石油大学 | Drilling bit and drilling string vibration absorption tool |
| CN102536114A (en) * | 2010-12-23 | 2012-07-04 | 中国石油大学(华东) | Mechanical underground vibration-absorption punching drilling tool |
| CN104295228A (en) * | 2013-07-16 | 2015-01-21 | 中国石油化工股份有限公司 | Differential pressure reciprocating well drilling impactor and method thereof |
| CN203531790U (en) * | 2013-09-30 | 2014-04-09 | 扬州市油田金达实业有限公司 | Novel drill collar |
| CN205225090U (en) * | 2015-11-11 | 2016-05-11 | 中国石油集团长城钻探工程有限公司 | A buffering short circuit for reducing drilling string vibration damage |
| CN105386730A (en) * | 2015-12-01 | 2016-03-09 | 西南石油大学 | Directional well and horizontal well drill stem extension tool and using method thereof |
| CN107100541A (en) * | 2017-05-05 | 2017-08-29 | 中国石油大学(华东) | A kind of impact type drilling tool by producing the pressure of the drill disturbance |
| CN107100547A (en) * | 2017-05-05 | 2017-08-29 | 中国石油大学(华东) | A kind of drillstring vibrations couple downhole well tool with waterpower pulse |
| CN208203155U (en) * | 2018-02-07 | 2018-12-07 | 中国石油集团西部钻探工程有限公司 | The reciprocating absorbing tool of external spring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805398A (en) * | 2018-08-06 | 2020-02-18 | 中国石油化工股份有限公司 | Downhole multi-dimensional vibration self-suppression device and method |
| CN110805398B (en) * | 2018-08-06 | 2021-06-04 | 中国石油化工股份有限公司 | Downhole multi-dimensional vibration self-suppression device and method |
| CN108868657A (en) * | 2018-09-18 | 2018-11-23 | 中国石油集团西部钻探工程有限公司 | Drill bit protective device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20201106 Address after: 100120 Beijing Xicheng District six laying Kang Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant 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 Applicant before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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