CN207583316U - Bottom pressure pulse friction reducer based on fluidic oscillator with vortex triode - Google Patents
Bottom pressure pulse friction reducer based on fluidic oscillator with vortex triode Download PDFInfo
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- CN207583316U CN207583316U CN201721789527.2U CN201721789527U CN207583316U CN 207583316 U CN207583316 U CN 207583316U CN 201721789527 U CN201721789527 U CN 201721789527U CN 207583316 U CN207583316 U CN 207583316U
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Abstract
Bottom pressure pulse friction reducer based on fluidic oscillator with vortex triode, outer tube between the utility model top connection and lower contact is followed successively by fluidic oscillator from top to bottom, pedestal, it is vortexed triode and bottom plate, fluidic oscillator includes a fluidic oscillator entrance, two fluidic oscillator Efferent tubes, it engages in this profession and is connected respectively to the high-drag channel of pedestal and pedestal low resistance flow channel, it is respectively coupled to the vortex triode high-drag channel of vortex triode inner upper end and vortex triode low resistance flow channel again, it is vortexed triode interior lower end and is equipped with vortex cavity radial passage entrance, vortex cavity Tangential Channel entrance and vortex cavity, bottom plate is provided centrally with bottom plate axial passage, and it is connected with vortex cavity.The utility model is simple in structure, can also be worked normally by changing fluidic oscillator inlet nozzle width change system average pressure drop and frequency of oscillation, low-pressure, and system pressure loss is small, and vortex triode increase pressure pulse amplitude reduces frequency of oscillation.
Description
Technical field
The present invention relates to a kind of drilling tools, are led in particular for directed drillings such as high angle hole, extended reach well, horizontal wells
The down-hole pressure pulse friction reducer in domain.
Background technology
As Oil And Gas Exploration And Development degree is increasingly sharpened in global range, drilling technology is towards horizontal well, High angle
The directed drillings such as well, extended reach well field is developed.But directional well is different from straight well, and it is difficult to have more technologies in drilling process
Point, such as drag and torque is big, load transfer is difficult, drilling efficiency is low.For these stubborn problems, the drill assembly in wellbore
The method of middle addition pressure pulse vibratory tool can improve the friction condition between drilling tool and the borehole wall or sleeve, reach antifriction drop
It turns round, extension wellbore, the purpose for improving drilling speed.
Existing pressure pulse friction reducer is mainly rotated using screw rod or turbine drives rotary valve, periodically changes valve port
Flow section accumulates, and drilling fluid is made to generate pressure pulse, and then pulsed pressure wave is transferred to oscillating mechanism and generates axial vibration.But by
In complicated, fragile part is more, and in underground, complex condition service life is limited.Patent CN103696686A jetting types
The pressure pulse drag reduction drilling tool proposed in explosive pressure pulse anti-drag drilling tool, simple in structure, movable member is few, but big there are pressure drop,
The problem of frequency of oscillation is high, and there is certain influence on measurement-while-drilling system.
Invention content
The object of the present invention is to provide a kind of bottom pressure pulse drag reduction works based on fluidic oscillator with vortex triode
Tool.
The purpose of the present invention is what is be achieved through the following technical solutions：
Based on fluidic oscillator with vortex triode bottom pressure pulse friction reducer, be by top connection by screw thread with
Outer tube connects, and the outer tube other end is connect by screw thread with lower contact, and outer tube is followed successively by fluidic oscillator, bottom from top to bottom
Seat, vortex triode and bottom plate；The fluidic oscillator includes a nozzle arrangements fluidic oscillator entrance, positioned at fluidic oscillation
Device center top sets at left and right sides of fluidic oscillator entrance and controls road there are two fluidic oscillator, below fluidic oscillator entrance
If there are two fluidic oscillator Efferent tubes；The chassis interior is equipped with pedestal high-drag channel and pedestal low resistance flow channel, and
It is connected respectively with two fluidic oscillator Efferent tubes；The vortex triode inner upper end is equipped with vortex triode high-drag channel
With vortex triode low resistance flow channel, and it is connected respectively with pedestal high-drag channel and pedestal low resistance flow channel；The whirlpool
It flows triode interior lower end and is equipped with vortex cavity radial passage entrance, vortex cavity Tangential Channel entrance and vortex cavity, wherein vortex cavity
Radial passage entrance is connected with vortex triode low resistance flow channel, and vortex cavity Tangential Channel entrance leads to vortex triode high-drag
Road connects, and vortex cavity radial passage entrance and vortex cavity Tangential Channel entrance are connected with vortex cavity；The bottom plate is centrally disposed
There is bottom plate axial passage, and connected with vortex cavity；Fluidic oscillator upper end is sealed with end in contact under top connection and with sealing ring, is penetrated
Stream oscillator lower end and pedestal upper-end contact is simultaneously sealed with sealing ring, and pedestal lower end is determined with being vortexed triode upper end using axis pin
Position, the two contact with each other and are sealed with sealing ring, and vortex triode lower end is with bottom plate by being welded to connect, and lower contact is with being vortexed three
It end in contact and is compressed under pole pipe.
Preferably, the vortex cavity outline camber line is circular arc or helix.
Preferably, fluidic oscillator is integrally fabricated using W-Co kind cemented carbide material.
Optionally, the pedestal, vortex triode and floor combination are vortexed triode cylinder body for an entirety, and using 3D
Printing technique carries out overall processing manufacture.
Fluidic oscillator inlet nozzle width can be adjusted.
Operation principle：Drilling fluid enters fluidic oscillator entrance by top connection central passage, and drilling fluid wall-attached jet is simultaneously
The random fluidic oscillator Efferent tube for entering side, since fluidic oscillator control road internal control stream effect makes jet stream can not
Stablize attached wall and side and form jet stream self-oscillation, by the fluidic oscillator Efferent tube of side to enter pedestal low when drilling fluid
Resistance channel, and then vortex triode low resistance flow channel is entered, finally from vortex cavity radial passage, entrance enters vortex cavity
And when passing through bottom plate axial passage and entering lower contact central passage, vortex cavity throttling action is smaller, and fluid resistance is relatively low, system
Pressure drop is relatively low, and when drilling fluid enters pedestal high-drag channel by the fluidic oscillator Efferent tube of side, and then enters
Be vortexed triode high-drag channel, finally enter vortex cavity from vortex cavity Tangential Channel entrance and pass through bottom plate axial passage into
When entering to lower contact central passage, vortex cavity throttling action is larger, and fluid resistance is higher, and system pressure drop is higher, due to jet stream
The self-oscillation characteristic of oscillator, is alternately present the two Period Process, is fluctuated so as to cause periodic pressure, forms pressure
Power pulse.
The configuration of the present invention is simple, compact, without motion parts, complex conditions adaptability are good；It can be shaken by changing jet stream
Device inlet nozzle width is swung to change system average pressure drop and frequency of oscillation；Since critical operating Reynolds number is relatively low, low
It can be worked normally under the conditions of pressure drop, system pressure loss is small；Being vortexed triode has increase pressure pulse amplitude, and reduction is shaken
The characteristics of swinging frequency, so as to ensure that it is smaller that good antifriction drop torsion effect simultaneously influences measurement-while-drilling system.
Main parts size may be used 3D printing technique processing and manufacturing or be fabricated using cemented carbide material, erosion resistance
Performance is good, and service life is high, almost without any maintenance.
Description of the drawings
Fig. 1 is structure chart of the present invention；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is B-B sectional views in Fig. 1；
Fig. 4 is C-C sectional views in Fig. 1；
Fig. 5 is D-D sectional views in Fig. 1；
Fig. 6 is 2 structure chart of the embodiment of the present invention.
In figure：1 top connection, 2 outer tubes, 3 fluidic oscillators, 4 pedestals, 5 vortex triodes, 6 bottom plates, 7 lower contacts, 8 vortex
Triode cylinder body.
I-top connection central fluid channel；II-fluidic oscillator entrance；III-fluidic oscillator controls road；IV-penetrate
Flow oscillator Efferent tube；V-pedestal low resistance flow channel；VI-pedestal high-drag channel；VII-vortex triode lower resistance is led to
Road；VIII-bottom plate axial passage；Ⅸ-lower contact central passage；Ⅹ-vortex triode high-drag channel；Ⅺ-vortex cavity diameter
To feeder connection；Ⅻ-vortex cavity Tangential Channel entrance；Ⅹ III-vortex cavity.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, top connection 1 is connect by screw thread with outer tube 2,1 inside middle part of top connection leads to equipped with top connection center
Road I；Outer tube 2 is connect by screw thread with lower contact 7, and lower contact 7 is internally provided with lower contact central passage Ⅸ；From upper inside outer tube 2
Fluidic oscillator 3, pedestal 4, vortex triode 5 and bottom plate 6 are followed successively by under and；Fluidic oscillator 3 includes a fluidic oscillator
Entrance II, two fluidic oscillator control roads III and two fluidic oscillator Efferent tubes IV；Pedestal 4 is internally provided with pedestal high-drag
Channel VI and pedestal low resistance flow channel V, and connected respectively with two fluidic oscillator Efferent tubes IV；It is vortexed inside triode 5
Upper end is equipped with vortex triode high-drag channel Ⅹ and vortex triode low resistance flow channel VII, and leads to respectively with pedestal high-drag
Road VI is connected with pedestal low resistance flow channel V；It is vortexed 5 interior lower end of triode and is equipped with vortex cavity radial passage entrance Ⅺ, vortex
Chamber Tangential Channel entrance Ⅻ and vortex cavity Ⅹ III, wherein vortex cavity radial passage entrance Ⅺ and vortex triode low resistance flow channel VII
It is connected, vortex cavity Tangential Channel entrance Ⅻ is connected with vortex triode high-drag channel Ⅹ, vortex cavity radial passage entrance
Ⅺ and vortex cavity Tangential Channel entrance Ⅻ connected with vortex cavity Ⅹ III；Bottom plate 6 is provided centrally with bottom plate axial passage VIII and whirlpool
Chamber Ⅹ III is flowed to connect；The 1 time end in contact in 3 upper end of fluidic oscillator and top connection is simultaneously sealed with sealing ring, 3 lower end of fluidic oscillator with
4 upper-end contact of pedestal is simultaneously sealed with sealing ring, and 4 lower end of pedestal is positioned with vortex 5 upper end of triode using axis pin, the two phase mutual connection
It touches and is sealed with sealing ring, vortex 5 lower end of triode is with bottom plate 6 by being welded to connect, and lower contact 7 is with being vortexed 5 lower end of triode
It contacts and compresses.
Embodiment 1
Fig. 1 shows the first way of realization according to the present invention, is connect including top connection 1 by screw thread with outer tube 2, outside
Pipe 2 is connect by screw thread with lower contact 7, is followed successively by fluidic oscillator 3, pedestal 4, vortex triode 5 inside outer tube 2 from top to bottom
With bottom plate 6, fluidic oscillator 3 includes a fluidic oscillator entrance II, two fluidic oscillator control roads III and two jet streams
Oscillator Efferent tube IV, the 1 time end in contact in 3 upper end of fluidic oscillator and top connection are simultaneously sealed with sealing ring, 3 lower end of fluidic oscillator
With 4 upper-end contact of pedestal and being sealed with sealing ring, using axis pin positioning, the two is mutual for 4 lower end of pedestal and vortex 5 upper end of triode
It contacts and is sealed with sealing ring, vortex 5 lower end of triode is with bottom plate 6 by being welded to connect, and lower contact 7 is with being vortexed under triode 5
End in contact simultaneously compresses.Fig. 2 is A-A sectional views in Fig. 1, and Fig. 3 is B-B sectional views in Fig. 1, and Fig. 4 is C-C sectional views in Fig. 1,
Fig. 5 is D-D sectional views in Fig. 1.
Embodiment 2
Fig. 6 shows second of way of realization according to the present invention, is connect including top connection 1 by screw thread with outer tube 2, outside
Pipe 2 is connect by screw thread with lower contact 7, is followed successively by fluidic oscillator 3 and vortex triode cylinder body 8 inside outer tube 2 from top to bottom,
Fluidic oscillator 3 includes a fluidic oscillator entrance II, and two fluidic oscillator control roads III and two fluidic oscillators are defeated
Engage in this profession IV, vortex triode cylinder body 8 is pedestal 4, vortex triode 5 and bottom plate 6 are combined as an entirety and use 3D printing skill
Art carries out overall processing and is fabricated, and the 1 time end in contact in 3 upper end of fluidic oscillator and top connection is simultaneously sealed with sealing ring, and jet stream shakes
3 lower end of device is swung with being vortexed 8 upper-end contact of triode cylinder body and being sealed with sealing ring, lower contact 7 and 8 lower end of vortex triode cylinder body
It contacts and compresses.
Claims (5)
1. the bottom pressure pulse friction reducer based on fluidic oscillator with vortex triode, it is characterised in that：Led to by top connection
It crosses screw thread to connect with outer tube, the outer tube other end is connect by screw thread with lower contact, and outer tube is followed successively by jet stream and shakes from top to bottom
Swing device, pedestal, vortex triode and bottom plate；The fluidic oscillator includes the fluidic oscillator entrance of a nozzle arrangements, position
Fluidic oscillator controls road, fluidic oscillation there are two being set at left and right sides of fluidic oscillator center top, fluidic oscillator entrance
Fluidic oscillator Efferent tube there are two being set below device entrance；The chassis interior is equipped with pedestal high-drag channel and pedestal lower resistance
Channel, and connected respectively with two fluidic oscillator Efferent tubes；The vortex triode inner upper end is equipped with vortex triode
High-drag channel and vortex triode low resistance flow channel, and be connected respectively with pedestal high-drag channel and pedestal low resistance flow channel
It is logical；The vortex triode interior lower end is equipped with vortex cavity radial passage entrance, vortex cavity Tangential Channel entrance and vortex cavity, whirlpool
Stream chamber radial passage entrance is connected with vortex triode low resistance flow channel, vortex cavity Tangential Channel entrance and vortex triode high resistant
Power channel connects, and vortex cavity radial passage entrance and vortex cavity Tangential Channel entrance are connected with vortex cavity；The bottom plate center
Bottom plate axial passage is provided with, and is connected with vortex cavity；Fluidic oscillator upper end is with end in contact under top connection and close with sealing ring
Envelope, fluidic oscillator lower end and pedestal upper-end contact are simultaneously sealed with sealing ring, and pedestal lower end is with vortex triode upper end using pin
Axis positions, and the two contacts with each other and sealed with sealing ring, is vortexed triode lower end with bottom plate by being welded to connect, lower contact and whirlpool
It flows end in contact under triode and compresses.
2. the bottom pressure pulse friction reducer according to claim 1 based on fluidic oscillator with vortex triode,
It is characterized in that：The vortex cavity outline camber line is circular arc or helix.
3. the bottom pressure pulse friction reducer according to claim 1 based on fluidic oscillator with vortex triode,
It is characterized in that：Fluidic oscillator uses W-Co kind cemented carbide material.
4. the bottom pressure pulse friction reducer according to claim 1 based on fluidic oscillator with vortex triode,
It is characterized in that：The pedestal, vortex triode and floor combination are vortexed triode cylinder body for an entirety, and use 3D printing skill
Art overall processing manufactures.
5. the bottom pressure pulse friction reducer according to claim 1 based on fluidic oscillator with vortex triode,
It is characterized in that：Fluidic oscillator inlet nozzle width is variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721789527.2U CN207583316U (en) | 2017-12-19 | 2017-12-19 | Bottom pressure pulse friction reducer based on fluidic oscillator with vortex triode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721789527.2U CN207583316U (en) | 2017-12-19 | 2017-12-19 | Bottom pressure pulse friction reducer based on fluidic oscillator with vortex triode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583316U true CN207583316U (en) | 2018-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721789527.2U Expired - Fee Related CN207583316U (en) | 2017-12-19 | 2017-12-19 | Bottom pressure pulse friction reducer based on fluidic oscillator with vortex triode |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882509A (en) * | 2017-12-19 | 2018-04-06 | 中南大学 | Bottom pressure pulse friction reducer |
| CN109162645A (en) * | 2018-08-24 | 2019-01-08 | 德阳正光石油机械制造有限公司 | Pulse-pressure generator |
| CN109915030A (en) * | 2019-04-23 | 2019-06-21 | 西南石油大学 | The PDC drill bit of multidirectional coupled pulse oscillation |
| CN113236214A (en) * | 2021-06-05 | 2021-08-10 | 西南石油大学 | Self-excitation type pulse type vortex underground discharging and extracting tool |
| CN113756722A (en) * | 2021-09-29 | 2021-12-07 | 中南大学 | Oscillating jet type pressure pulse generator |
| WO2022046126A1 (en) * | 2020-08-25 | 2022-03-03 | Saudi Arabian Oil Company | Fluidic pulse activated agitator |
-
2017
- 2017-12-19 CN CN201721789527.2U patent/CN207583316U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882509A (en) * | 2017-12-19 | 2018-04-06 | 中南大学 | Bottom pressure pulse friction reducer |
| CN107882509B (en) * | 2017-12-19 | 2024-07-12 | 中南大学 | Bottom hole pressure pulse drag reduction tool |
| CN109162645A (en) * | 2018-08-24 | 2019-01-08 | 德阳正光石油机械制造有限公司 | Pulse-pressure generator |
| CN109162645B (en) * | 2018-08-24 | 2023-09-19 | 德阳正光石油机械制造有限公司 | Pulse pressurizing generator |
| CN109915030A (en) * | 2019-04-23 | 2019-06-21 | 西南石油大学 | The PDC drill bit of multidirectional coupled pulse oscillation |
| WO2022046126A1 (en) * | 2020-08-25 | 2022-03-03 | Saudi Arabian Oil Company | Fluidic pulse activated agitator |
| US11624240B2 (en) | 2020-08-25 | 2023-04-11 | Saudi Arabian Oil Company | Fluidic pulse activated agitator |
| CN113236214A (en) * | 2021-06-05 | 2021-08-10 | 西南石油大学 | Self-excitation type pulse type vortex underground discharging and extracting tool |
| CN113756722A (en) * | 2021-09-29 | 2021-12-07 | 中南大学 | Oscillating jet type pressure pulse generator |
| CN113756722B (en) * | 2021-09-29 | 2022-07-26 | 中南大学 | Oscillating jet type pressure pulse generator |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20180706 Termination date: 20181219 |