CN207583317U - Eddy current type oscillating jet pressure pulse friction reducer - Google Patents
Eddy current type oscillating jet pressure pulse friction reducer Download PDFInfo
- Publication number
- CN207583317U CN207583317U CN201721788478.0U CN201721788478U CN207583317U CN 207583317 U CN207583317 U CN 207583317U CN 201721788478 U CN201721788478 U CN 201721788478U CN 207583317 U CN207583317 U CN 207583317U
- Authority
- CN
- China
- Prior art keywords
- fluidic oscillator
- eddy current
- current type
- vortex
- friction reducer
- 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.)
- Withdrawn - After Issue
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 8
- 229910008947 W—Co Inorganic materials 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 230000010355 oscillation Effects 0.000 abstract description 7
- 230000003628 erosive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
Abstract
A kind of eddy current type oscillating jet pressure pulse friction reducer, the utility model is connect by top connection by screw thread with outer tube, the outer tube other end is connect by screw thread with lower contact, it is eddy current type fluidic oscillator between outer tube top connection and lower contact, eddy current type fluidic oscillator upper end contacts with top connection and is sealed with sealing ring, eddy current type fluidic oscillator lower end contacts and compresses with lower contact, the eddy current type fluidic oscillator is fastened and is bolted connection by bottom plate and cover board, including a fluidic oscillator entrance, two fluidic oscillator control roads or fluidic oscillator control chamber, two fluidic oscillator Efferent tubes, vortex amplifier radial direction low resistance flow channel and tangential high-drag channel, vortex cavity and vortex cavity export mixes.The utility model is simple in structure, compact, major part only one, and no any movement parts, complex conditions adaptability are good；Change system average pressure drop and frequency of oscillation by changing fluidic oscillator inlet nozzle width, meet different working condition requirements.
Description
Technical field
The utility model is related to a kind of drilling well oscillation friction reducer, particularly for orientations such as extended reach well and horizontal wells
The down-hole pressure pulse friction reducer of drilling applications.
Background technology
Pressure pulse friction reducer is to solving drag and torque in the directed drillings such as extended reach well, high angle hole and horizontal well
The drilling wells problems such as greatly, load transfer is difficult, drilling efficiency is low provide important technical method, and drilling efficiency greatly improved,
Shorten the Oil And Gas Exploration And Development period.
Mainly using rotary valve pulse theory, different moments valve area of passage occurs existing pressure pulse friction reducer
Cyclically-varying, so as to generate pressure pulse, the oscillating component with power driven tools does periodic stretching motion in the axial direction, changes
Friction mode between drilling rod and the borehole wall improves drilling efficiency.But this kind of tool construction is complicated, and fragile part is more, stator,
Erosion is serious at work for the parts such as vane rotor, and tool flushing resistance is on the weak side, and service life is limited.
Invention content
The utility model provides one for the problem of existing all kinds of oscillation friction reducers are complicated, service life is low
Kind eddy current type oscillating jet pressure pulse friction reducer.
The purpose of this utility model is achieved through the following technical solutions：
Eddy current type oscillating jet pressure pulse friction reducer is to be connect by top connection by screw thread with outer tube, and outer tube passes through
Screw thread is connect with lower contact, is eddy current type fluidic oscillator between outer tube top connection and lower contact；Eddy current type fluidic oscillation
Device upper end contacts with top connection and is sealed with sealing ring, and eddy current type fluidic oscillator lower end contacts and compresses with lower contact；It is described
Eddy current type fluidic oscillator is fastened and is bolted connection by bottom plate and cover board, includes the fluidic oscillation of a nozzle arrangements
Device entrance, sets that there are two fluidic oscillators positioned at eddy current type fluidic oscillator center top, at left and right sides of fluidic oscillator entrance
Road or fluidic oscillator control chamber are controlled, sets that there are two fluidic oscillator Efferent tube, two jet streams below fluidic oscillator entrance
Oscillator Efferent tube leads to respectively with a vortex amplifier radial direction low resistance flow channel and a tangential high-drag of vortex amplifier
Road is connected, and vortex amplifier radial direction low resistance flow channel and the tangential high-drag channel of vortex amplifier connect with a vortex cavity
It is logical, it is exported at vortex cavity arc profile center equipped with vortex cavity, outer tube forms two emptying roads between bottom plate and cover board respectively,
Vortex cavity outlet connects vortex cavity with emptying road.
Preferably, between bottom plate and cover board faying face by Precision Machining to 0.8 μm of surface roughness below.
Preferably, bottom plate and cover board are integrally fabricated using W-Co kind cemented carbide material.
Preferably, the fluid media (medium) which uses is drilling mud, gas or foam.
Optionally, it is each on bottom plate and cover board a vortex cavity to be set to export or on one of bottom plate or cover board respectively
Single vortex cavity is set to export.
Optionally, vortex cavity outer profile can be circular arc or elliptic arc.
Operation principle：Fluid media (medium) enters fluidic oscillator entrance by top connection central passage, after being accelerated by nozzle
Fluidic oscillator Efferent tube that is random amesiality and entering side is controlled since fluidic oscillator controls inside road or control chamber
Stream effect processed makes jet stream that can not stablize attached wall and side and form jet stream self-oscillation, when fluid media (medium) is by the fluidic oscillation of side
Device Efferent tube enters vortex amplifier radial direction low resistance flow channel, and then enters vortex cavity, and is entered from vortex cavity outlet
When entering back into lower contact central passage, vortex cavity throttling action is smaller, and fluid resistance is relatively low in emptying road, system pressure drop compared with
It is low, and when fluid media (medium) enters the tangential high-drag channel of vortex amplifier by the fluidic oscillator Efferent tube of side, Jin Erjin
Enter to vortex cavity, and from vortex cavity outlet enter emptying road enter back into lower contact central passage when, vortex cavity throttling action
Larger, fluid resistance is higher, and system pressure drop is higher, due to the self-oscillation characteristic of fluidic oscillator, makes the two processes all
Phase property is alternately present, and is fluctuated so as to cause periodic pressure, forms pressure pulse.
The utility model is simple in structure, there are one compact, major parts, and no any movement parts, complex conditions are fitted
Answering property is good；System average pressure drop and frequency of oscillation can be changed by changing fluidic oscillator inlet nozzle width；It adopts
It is good with hard alloy stiff materials processing and manufacturing erosive wear resistance.
Description of the drawings
Fig. 1 is eddy current type oscillating jet pressure pulse friction reducer structure chart；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is the utility model second embodiment structure chart.
1 top connection, 2 outer tubes, 3 eddy current type fluidic oscillators, 4 lower contacts, 5 bottom plates, 6 cover boards, 7 concave surface eddy current type jet streams shake
Swing device.
I-top connection central fluid channel；II-fluidic oscillator entrance；III-fluidic oscillator controls road；IV-penetrate
Flow oscillator Efferent tube；V-vortex amplifier radial direction low resistance flow channel；The tangential high-drag channel of VI-vortex amplifier；Ⅶ—
Vortex cavity；VIII-vortex cavity exports；Ⅸ-lower contact central passage；Ⅹ-emptying road；Ⅺ-fluidic oscillator control chamber.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
In Fig. 1, top connection 1 is connect by screw thread with outer tube 2, and 1 inside middle part of top connection is equipped with top connection central passage I；
Outer tube 2 is connect by screw thread with lower contact 4, and lower contact 4 is internally provided with lower contact central passage Ⅸ；2 inside top connection 1 of outer tube with
It is eddy current type fluidic oscillator 3 between lower contact 4；3 upper end of eddy current type fluidic oscillator contacts and close with sealing ring with top connection 1
Envelope, 3 lower end of eddy current type fluidic oscillator contacts and compresses with lower contact 4；Eddy current type fluidic oscillator 3 is buckled by bottom plate 5 and cover board 6
Merga pass bolt is fastenedly connected, and eddy current type fluidic oscillator 3 mainly includes a fluidic oscillator entrance II, and two jet streams shake
Swing device control road III or fluidic oscillator control chamber Ⅺ, two fluidic oscillator Efferent tubes IV, a vortex amplifier is radially low
Resistance channel V, the tangential high-drag channel VI of a vortex amplifier, a vortex cavity VII and a vortex cavity outlet VIII,
In, fluidic oscillator entrance II is connected with top connection central passage I, two IV lower ends of jetting type oscillator Efferent tube respectively with whirlpool
Stream amplifier radial direction low resistance flow channel V is connected with tangential VI upper end of high-drag channel of vortex amplifier, and vortex amplifier is radially
Low resistance flow channel V and tangential VI lower end of high-drag channel of vortex amplifier are connected with vortex cavity VII；Outer tube 2 respectively with bottom
Two emptying roads Ⅹ are formed between plate 5 and cover board 6, vortex cavity outlet VIII connects vortex cavity VII with emptying road Ⅹ；Empty road Ⅹ
It is connected with lower contact central passage Ⅸ.
Embodiment 1
Fig. 1 shows the first way of realization according to the present utility model, is connected including top connection 1 by screw thread and outer tube 2
It connects, outer tube 2 is connect by screw thread with lower contact 4, is eddy current type fluidic oscillator between 2 inside top connection 1 of outer tube and lower contact 4
3, eddy current type fluidic oscillator 3 mainly includes a fluidic oscillator entrance II, and two fluidic oscillators control road III, and two are penetrated
Flow oscillator Efferent tube IV, a vortex amplifier radial direction low resistance flow channel V, the tangential high-drag channel of a vortex amplifier
VI, a vortex cavity VII and vortex cavity outlet VIII, 3 upper end of eddy current type fluidic oscillator contact with top connection 1 and with close
Seal seals, and 3 lower end of eddy current type fluidic oscillator contacts and compresses with lower contact 4.
Embodiment 2
Fig. 3 shows second of way of realization according to the present utility model, is connected including top connection 1 by screw thread and outer tube 2
It connects, outer tube 2 is connect by screw thread with lower contact 4, is eddy current type fluidic oscillator between 2 inside top connection 1 of outer tube and lower contact 4
3, eddy current type fluidic oscillator 3 mainly includes a fluidic oscillator entrance II, and two fluidic oscillator control chambers Ⅺ, two are penetrated
Flow oscillator Efferent tube IV, a vortex amplifier radial direction low resistance flow channel V, the tangential high-drag channel of a vortex amplifier
VI, a vortex cavity VII and vortex cavity outlet VIII, 3 upper end of eddy current type fluidic oscillator contact with top connection 1 and with close
Seal seals, and 3 lower end of eddy current type fluidic oscillator contacts and compresses with lower contact 4.
Claims (6)
1. eddy current type oscillating jet pressure pulse friction reducer, it is characterised in that：It is connect by top connection by screw thread with outer tube, outside
The pipe other end is connect by screw thread with lower contact, is eddy current type fluidic oscillator between outer tube top connection and lower contact, whirlpool
Streaming fluidic oscillator upper end contacts with top connection and is sealed with sealing ring, and eddy current type fluidic oscillator lower end is contacted with lower contact
And compress, the eddy current type fluidic oscillator is fastened and is bolted connection by bottom plate and cover board, including a nozzle knot
The fluidic oscillator entrance of structure is equipped with two at left and right sides of eddy current type fluidic oscillator center top, fluidic oscillator entrance
A fluidic oscillator control road or fluidic oscillator control chamber, set that there are two fluidic oscillators to export below fluidic oscillator entrance
Road, two fluidic oscillator Efferent tubes respectively with vortex amplifier radial direction low resistance flow channel and the tangential high-drag of vortex amplifier
Channel is connected, and vortex amplifier radial direction low resistance flow channel and the tangential high-drag channel of vortex amplifier are connected with vortex cavity,
It is exported at vortex cavity arc profile center equipped with vortex cavity, outer tube forms two emptying roads, whirlpool between bottom plate and cover board respectively
The outlet of stream chamber connects vortex cavity with emptying road.
2. eddy current type oscillating jet pressure pulse friction reducer as described in claim 1, it is characterised in that：Bottom plate and cover board it
Between faying face surface roughness be less than 0.8 μm.
3. eddy current type oscillating jet pressure pulse friction reducer as described in claim 1, it is characterised in that：Bottom plate and cover board are whole
Body uses W-Co kind cemented carbide material.
4. eddy current type oscillating jet pressure pulse friction reducer as described in claim 1, it is characterised in that：The pressure arteries and veins
It is drilling mud, gas or foam to rush the fluid media (medium) that friction reducer uses.
5. eddy current type oscillating jet pressure pulse friction reducer as described in claim 1, it is characterised in that：In bottom plate and cover board
It is upper that a vortex cavity is set to export or single vortex cavity is set to export on one of bottom plate, cover board respectively.
6. eddy current type oscillating jet pressure pulse friction reducer as described in claim 1, it is characterised in that：Vortex cavity outer profile
It is circular arc or elliptic arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721788478.0U CN207583317U (en) | 2017-12-19 | 2017-12-19 | Eddy current type oscillating jet pressure pulse friction reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721788478.0U CN207583317U (en) | 2017-12-19 | 2017-12-19 | Eddy current type oscillating jet pressure pulse friction reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583317U true CN207583317U (en) | 2018-07-06 |
Family
ID=62739094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721788478.0U Withdrawn - After Issue CN207583317U (en) | 2017-12-19 | 2017-12-19 | Eddy current type oscillating jet pressure pulse friction reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583317U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956423A (en) * | 2017-12-19 | 2018-04-24 | 中南大学 | Eddy current type oscillating jet pressure pulse friction reducer |
| CN109915029A (en) * | 2019-04-23 | 2019-06-21 | 西南石油大学 | The PDC drill bit of multidirectional coupling fluidic oscillation |
| CN110029944A (en) * | 2019-04-23 | 2019-07-19 | 西南石油大学 | The PDC drill bit of impulse hunting realization rock fracture in dynamic indentation |
| CN113756722A (en) * | 2021-09-29 | 2021-12-07 | 中南大学 | Oscillating jet type pressure pulse generator |
-
2017
- 2017-12-19 CN CN201721788478.0U patent/CN207583317U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956423A (en) * | 2017-12-19 | 2018-04-24 | 中南大学 | Eddy current type oscillating jet pressure pulse friction reducer |
| CN107956423B (en) * | 2017-12-19 | 2024-04-05 | 中南大学 | Vortex oscillating jet flow pressure pulse drag reduction tool |
| CN109915029A (en) * | 2019-04-23 | 2019-06-21 | 西南石油大学 | The PDC drill bit of multidirectional coupling fluidic oscillation |
| CN110029944A (en) * | 2019-04-23 | 2019-07-19 | 西南石油大学 | The PDC drill bit of impulse hunting realization rock fracture in dynamic indentation |
| 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 |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180706 Effective date of abandoning: 20240405 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180706 Effective date of abandoning: 20240405 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |