CN106703699B - Pressure pulse realizes the oscillator of secondary pulse - Google Patents
Pressure pulse realizes the oscillator of secondary pulse Download PDFInfo
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- CN106703699B CN106703699B CN201611194257.0A CN201611194257A CN106703699B CN 106703699 B CN106703699 B CN 106703699B CN 201611194257 A CN201611194257 A CN 201611194257A CN 106703699 B CN106703699 B CN 106703699B
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- spool
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- spring
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
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- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Multiple-Way Valves (AREA)
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Abstract
Pressure pulse realizes the oscillator of secondary pulse.The invention discloses a kind of downhole tool that impact of collision is generated using drilling fluid and spring in the fields such as oil drilling, technical solution is：Top connection, orientation spool, housing and lower contact pass sequentially through threaded connection；Upper valve base carries out axially position and circumferentially positioned between housing and spool, by abutment sleeve A；Upper valve base spring is located in the annular space outside spool, and axially position is realized by upper valve base and the step of spool upper end；Three track pins, three radial direction circular holes from upper valve base pass through and realize the circumferentially positioned of spool with the keyway cooperation of valve core outer surface；Upper support seat and lower support base are connected through a screw thread, and axially position is realized by abutment sleeve B and housing；Lower valve body is located inside lower contact, and axially position is realized by lower valve body spring and housing.The present invention can effectively reduce the friction of down-hole equipment and pit shaft in horizontal well, directional well and vertical well, solve the problems, such as the pressure in drillng operation, extend drill tool life, improve drilling efficiency.
Description
Technical field
The present invention relates to a kind of for tool Axial Shock Load in the fields such as oil drilling, mining, geological drilling
Downhole tool.
Background technology
In recent years, with the continuous development of Chinese society economy, demand of the country to oil, natural gas also significantly increases
Add, so the exploitation to oil, natural gas also gradually increases.It often generates and rubs in drilling process, between drill string and pit shaft
It wipes.Particularly in net horizontal section, due to extended horizontal depth and bottom hole flushing effect difference etc., cause between pit shaft and drill string
Friction can be much higher than caused by vertical well and directional well and rub.With the increase of friction so that bit pressure cannot be effectively
Be transmitted to drill bit, this can generate very big influence to drill bit, rate of penetration can be caused to be greatly reduced, can also increase to drill string and
The down-hole accidents such as bit freezing can even occur when serious for the abrasion of drill bit, and the construction for drillng operation brings great security risk,
Production efficiency is caused to reduce.
Most of axial vibration tools need to generate periodic pressure pulse, such as mud motor by external impetus
And turbodrill.This kind of downhole tool can increase the expense of underground work and the complexity of downhole operations, based on this, carry herein
Go out the oscillator that pressure pulse realizes secondary pulse, impact of collision is generated using the pressure of drilling fluid and the elastic force of spring, it is real
The axial vibration of existing drill string, alleviates backing pressure effect, to achieve the purpose that reduce the friction of down-hole equipment and pit shaft, so as to make bit pressure
Shaft bottom is more effectively transmitted to, and then extends the service life of downhole tool, improves the efficiency of drilling well.
Invention content
The purpose of the present invention is：It is big in horizontal well and Tubulars In Inclined Wellbores and wellbore frictional resistance in order to solve, bit pressure without
Method is effectively passed to the problem of shaft bottom, provides a kind of underground work that drilling liquid pressure is converted into drill string Axial Shock Load
Tool.
To achieve the above object, the technical solution adopted by the present invention is：The pressure pulse realizes shaking for secondary pulse
Device is swung by top connection, orientation spool, abutment sleeve A, spool, upper valve body spring, track pin, upper valve base, abutment sleeve B, valve
Core print, upper support seat, lower support base, housing, lower valve body, lower valve body spring, spring base, lower contact composition.On it is characterized in that
Connector, orientation spool, housing and lower contact pass sequentially through threaded connection；Orientation spool is between top connection and housing, thereon
End inner surface is provided with spline keyway；The outer surface of abutment sleeve A upper ends and the inner surface of lower end are all provided with spline keyway, it is located at
Between orientation spool and spool, and pass through top connection and upper valve base progress axially position, the spline passed through on orientation spool carries out
It is circumferentially positioned；Upper valve body spring is between spool and abutment sleeve A；Upper valve base passes through positioning between housing and spool
Sleeve A carries out axially position, and passes through the spline on abutment sleeve A and carry out circumferentially positioned, and upper valve base is radially being opened there are three phase
The mutually 120 ° of equally distributed circular holes in interval, and set 6 spaced 60 ° in axial direction in upper valve base lower end and be uniformly distributed
Blind hole, be corresponding to it again radially on open 6 spaced 60 ° of equally distributed through-holes from inside to outside, through-hole connection
6 spaced 60 ° of equally distributed blind holes on sprue and axial direction；Spool is located at pressure pulse and realizes secondary pulse
The most inner side of oscillator is provided with through-flow spline at spool upper end step；Three track pins, three radial direction circular holes from upper valve base
It passes through and coordinates with the Y shape keyway of valve core outer surface, realize the circumferentially positioned of spool；Valve core head is connected through a screw thread with spool；
Abutment sleeve B realizes axially position between spool and housing, by upper valve base；Upper support seat and lower support base pass through screw thread
Connection, and pass through abutment sleeve B and housing realization axially position；Lower valve body is located inside lower contact, by lower valve body spring and
Housing realizes axially position, and radially 4 equidistant through-holes are in axial direction provided in lower valve body lower end；Spring is located at lower valve
Between body and lower contact, axially position is realized by lower valve body and spring base；Spring base leads between lower valve body and lower contact
It crosses lower contact and realizes axially position.
Compared with prior art, the beneficial effects of the invention are as follows：(1) pressure pulse realizes the oscillator energy of secondary pulse
One secondary axial impact force of stable periodical high-frequency is enough provided；(2) axial impact of high frequency effectively overcomes underground brill
The frictional force of tool and pit shaft realizes effective transmission of well head bit pressure, improves rate of penetration, simultaneously as the vibration of tool in itself,
Drilling tool is prevented to be attached on the lower borehole wall for a long time, so as to avoid the generation of the down-hole accidents such as viscous card.
Description of the drawings
Fig. 1 is the structure diagram for the oscillator that pressure pulse of the present invention realizes secondary pulse.
In figure：1- top connections, 2- orientation spools, 3- abutment sleeve A, 4- spool, 5- upper valve bodies spring, 6- track pins,
Under 7- upper valve bases, 8- abutment sleeve B, 9- valve core head, 10- upper support seats, 11- under support base, 12- housings, 13- lower valve bodies, 14-
Valve body spring, 15- spring bases, 16- lower contacts.
Fig. 2 is the sectional view in A-A faces in Fig. 1 of the present invention.
Fig. 3 is the sectional view in B-B faces in Fig. 1 of the present invention.
Fig. 4 is the sectional view in C-C faces in Fig. 1 of the present invention.
Fig. 5 is the sectional view in D-D faces in Fig. 1 of the present invention.
Fig. 6 is the sectional view in E-E faces in Fig. 1 of the present invention.
Fig. 7 is the 3-D view of spool of the present invention.
Fig. 8 is the 3-D view of upper support seat of the present invention.
Fig. 9 is the plane outspread drawing of valve core outer surface keyway of the present invention.
Specific embodiment
Shown with reference to the accompanying drawings, the pressure pulse realizes the oscillator of secondary pulse, by top connection, orientation spool, determines
Position sleeve A, spool, upper valve body spring, track pin, upper valve base, abutment sleeve B, valve core head, upper support seat, lower support base, shell
Body, lower valve body, lower valve body spring, spring base, lower contact composition.It is characterized in that top connection 1, orientation spool 2, housing 12 and under
Connector 16 passes sequentially through threaded connection；For orientation spool 2 between top connection 1 and housing 12, the upper end inner surface is provided with spline
Keyway；The outer surface of abutment sleeve A3 upper ends and the inner surface of lower end are all provided with spline keyway, it is located at orientation spool 2 and spool
Between 4, and pass through top connection 1 and the progress axially position of upper valve base 7, carried out by the spline on orientation spool 2 circumferentially positioned；On
Valve body spring 5 is between spool 4 and abutment sleeve A3；Upper valve base 7 passes through abutment sleeve between housing 12 and spool 4
A3 carry out axially position, and pass through the spline on abutment sleeve A3 carry out it is circumferentially positioned, upper valve base 7 radially open there are three mutually
120 ° of equally distributed circular holes are spaced, and sets 6 spaced 60 ° in axial direction in 7 lower end of upper valve base and is uniformly distributed
Blind hole, be corresponding to it again radially on open 6 spaced 60 ° of equally distributed through-holes from inside to outside, through-hole connection
6 spaced 60 ° of equally distributed blind holes on sprue and axial direction；Spool 4 is located at pressure pulse and realizes secondary pulse
Oscillator most inner side, be provided with through-flow spline at 4 upper end step of spool；Three track pins 6 are from three radial directions on upper valve base 7
Circular hole is passed through and is coordinated with the Y shape keyway of 4 outer surface of spool, realizes the circumferentially positioned of spool 4；Valve core head 9 passes through spiral shell with spool 4
Line connects；Abutment sleeve B8 realizes axially position between spool 4 and housing 12, by upper valve base 7；Upper support seat 10 is under
Support base 11 is connected through a screw thread, and passes through abutment sleeve B8 and the realization axially position of housing 12；Lower valve body 13 is located at lower contact
Inside 16, axially position is realized by lower valve body spring 14 and housing 12, is radially in axial direction set in 13 lower end of lower valve body
There are 4 equidistant through-holes；Spring realizes axis between lower valve body 13 and lower contact 16, by lower valve body 13 and spring base 15
To positioning；Spring base 15 realizes axially position between lower valve body 13 and lower contact 16, by lower contact 16.
Pressure pulse realizes that the oscillator of secondary pulse will coordinate damper to be used together, and can just generate effective impact shake
The effect of swinging.During work, spool 4 is jacked up by upper valve body spring 5, and the spline step on 4 top of spool and the lower face of top connection 1 connect
It touches, six overcurrent bore closures of 4 lower part of spool, valve core head 9 is detached with upper support seat 10.Lower valve body 13 is pushed up by lower valve body spring 14
It rises, lower support base 11 is contacted with lower valve body 13.Drilling fluid enters from top connection 1, spool 4 and valve core head 9 is flowed through, due to drilling fluid
Can not continue to flow downward, the drilling liquid pressure in spool 4 is made to start to increase, when pressure rise to valve core head 9 generate to
Under power be more than upper valve body 5 elastic force of spring when, spool 4 and valve core head 9 start to move down, start when moving down a distance turn
Dynamic, spool turns over 30 °, in 4 folding process of spool when spool 4 is displaced downwardly to maximum position, and valve core head 9 first connects with upper support seat 10
It touches, then six flowing holes on spool 4 are connected with six flowing holes on upper valve base 7.The drilling fluid flowed out from spool 4 flows into
Abutment sleeve B8, then upper support seat 10 and lower support base 11 are flowed successively through, it is plugged in 13 upper end surface of lower valve body, then passes through
The pushed at high pressure lower valve body 13 of drilling fluid moves downward, and moves to lower valve body 13 always and is detached with lower support base 11 so that valve body
The cleaner for high-pressure drilling fluid on top is connected with the low-pressure drilling liquid of lower part, so as to decline drilling liquid pressure.Since spring force acts on,
After drilling liquid pressure declines, spool 4 is bounced by upper valve body spring 5 first, and spool 4 is made to hit top connection 1 and is returned to simultaneously initial
Position generates first axial impact；Then lower valve body 13 is bounced by lower valve body spring 14, and lower valve body 13 is made to hit housing 12 simultaneously
Initial position is returned to simultaneously, generates second axial impact.Drilling fluid repeats above-mentioned first process, so repeatedly, pressure again
Pulse realizes that the oscillator of secondary pulse generates a stable periodical high-frequency axial impact force.
Claims (3)
1. pressure pulse realizes the oscillator of secondary pulse, by top connection, orientation spool, abutment sleeve A, spool, upper valve body bullet
Spring, track pin, upper valve base, abutment sleeve B, valve core head, upper support seat, lower support base, housing, lower valve body, lower valve body spring,
Spring base, lower contact composition, it is characterised in that top connection (1), orientation spool (2), housing (12) and lower contact (16) are led to successively
Cross threaded connection；For orientation spool (2) between top connection (1) and housing (12), the upper end inner surface is provided with spline keyway；It is fixed
The position outer surface of sleeve A (3) upper end and the inner surface of lower end are all provided with spline keyway, it is located at orientation spool (2) and spool (4)
Between, and pass through top connection (1) and upper valve base (7) progress axially position, it is circumferential fixed to be carried out by the spline on orientation spool (2)
Position；Upper valve body spring (5) is between spool (4) and abutment sleeve A (3)；Upper valve base (7) is positioned at housing (12) and spool (4)
Between, axially position is carried out by abutment sleeve A (3), and pass through the spline on abutment sleeve A (3) and carry out circumferentially positioned, upper valve
Seat (7) is radially being opened there are three spaced 120 ° of equally distributed circular holes, and set in axial direction in upper valve base (7) lower end
Put 6 spaced 60 ° of equally distributed blind holes, be corresponding to it again radially on open 6 spaced 60 ° from inside to outside
Equally distributed through-hole, through-hole connect 6 spaced 60 ° of equally distributed blind holes on sprue and axial direction；Spool (4)
The most inner side of the oscillator of secondary pulse is realized positioned at pressure pulse, through-flow spline is provided at spool (4) upper end step；Three rails
Road pin (6) is passed through from the upper three radial direction circular holes of upper valve base (7) and is coordinated with the Y shape keyway of spool (4) outer surface, realizes spool
(4) circumferentially positioned；Valve core head (9) is connected through a screw thread with spool (4)；Abutment sleeve B (8) is positioned at spool (4) and housing
(12) between, axially position is realized by upper valve base (7)；Upper support seat (10) and lower support base (11) are connected through a screw thread, and
Axially position is realized by abutment sleeve B (8) and housing (12)；Lower valve body (13) is internal positioned at lower contact (16), passes through lower valve
Body spring (14) and housing (12) realize axially position, and 4 are radially in axial direction provided in lower valve body (13) lower end equidistantly
From through-hole；Spring is located between lower valve body (13) and lower contact (16), and axis is realized by lower valve body (13) and spring base (15)
To positioning；Spring base (15) realizes axially position between lower valve body (13) and lower contact (16), by lower contact (16).
2. pressure pulse according to claim 1 realizes the oscillator of secondary pulse, it is characterised in that six same Y shapes
Keyway cycle is continuously coated on spool (4) outer surface, and Y shape keyway makes spool (4) by coordinating with three track pins (6)
Along with rotation while axially movable；The each Y shape keyway of spool (4) is aligned with the radial through-hole of spool (4) lower end,
Pass through the limiting of track pin (6) so that connected just with the blind hole on upper valve base (7) when spool (4) is in lowest positions.
3. pressure pulse according to claim 1 realizes the oscillator of secondary pulse, it is characterised in that spool (4) lower end with
7 clearance fits of H8/f are used between upper valve base (7)；7 clearance fits of H8/f are used between lower valve body (13) and spring base (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611194257.0A CN106703699B (en) | 2016-12-21 | 2016-12-21 | Pressure pulse realizes the oscillator of secondary pulse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611194257.0A CN106703699B (en) | 2016-12-21 | 2016-12-21 | Pressure pulse realizes the oscillator of secondary pulse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703699A CN106703699A (en) | 2017-05-24 |
| CN106703699B true CN106703699B (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611194257.0A Active CN106703699B (en) | 2016-12-21 | 2016-12-21 | Pressure pulse realizes the oscillator of secondary pulse |
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| CN (1) | CN106703699B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273646A (en) * | 2019-07-11 | 2019-09-24 | 成都阿斯贝瑞科技有限公司 | A kind of novel drop mill friction reducer |
| CN112431568B (en) * | 2020-11-24 | 2021-11-26 | 中国石油大学(北京) | Bidirectional hydraulic oscillator |
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| RU2266402C2 (en) * | 2003-11-17 | 2005-12-20 | Закрытое акционерное общество "Рэнес" | Well liquid oscillation exciting method |
| CN103291214A (en) * | 2013-06-19 | 2013-09-11 | 中国石油大学(华东) | Reciprocating type hydraulic-drive impacter |
| CN104895517A (en) * | 2015-06-19 | 2015-09-09 | 长江大学 | Worm-driven double-valve hydraulic oscillator |
| CN105239929A (en) * | 2015-11-24 | 2016-01-13 | 西南石油大学 | Downhole tool for achieving efficient rock breaking through spin vibration |
| CN105909166A (en) * | 2016-04-21 | 2016-08-31 | 西南石油大学 | Spiral double-stage compounding impacting device for drilling well speed raising and effect enhancing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2235187C2 (en) * | 2000-05-16 | 2004-08-27 | Иванников Владимир Иванович | Device for applying vibration to pipe string in well (variants) |
-
2016
- 2016-12-21 CN CN201611194257.0A patent/CN106703699B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2266402C2 (en) * | 2003-11-17 | 2005-12-20 | Закрытое акционерное общество "Рэнес" | Well liquid oscillation exciting method |
| CN103291214A (en) * | 2013-06-19 | 2013-09-11 | 中国石油大学(华东) | Reciprocating type hydraulic-drive impacter |
| CN104895517A (en) * | 2015-06-19 | 2015-09-09 | 长江大学 | Worm-driven double-valve hydraulic oscillator |
| CN105239929A (en) * | 2015-11-24 | 2016-01-13 | 西南石油大学 | Downhole tool for achieving efficient rock breaking through spin vibration |
| CN105909166A (en) * | 2016-04-21 | 2016-08-31 | 西南石油大学 | Spiral double-stage compounding impacting device for drilling well speed raising and effect enhancing |
Non-Patent Citations (1)
| Title |
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| 田家林等.钻井减摩振荡器工作特性研究与试验分析.《机械设计》.2015,第32卷(第11期),68-73. * |
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Effective date of registration: 20201211 Address after: 402473 station 13, 10 / F, innovation and development center, No. 19, Lingfang Avenue, Changzhou street, Rongchang District, Chongqing Patentee after: Chongqing tongyushi Technology Co., Ltd Address before: 610500, Xindu Avenue, Xindu District, Sichuan, Chengdu, 8 Patentee before: SOUTHWEST PETROLEUM University |