CN107956423A - Eddy current type oscillating jet pressure pulse friction reducer - Google Patents
Eddy current type oscillating jet pressure pulse friction reducer Download PDFInfo
- Publication number
- CN107956423A CN107956423A CN201711369430.0A CN201711369430A CN107956423A CN 107956423 A CN107956423 A CN 107956423A CN 201711369430 A CN201711369430 A CN 201711369430A CN 107956423 A CN107956423 A CN 107956423A
- 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.)
- Granted
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 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 5
- 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
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
-
- 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
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Earth Drilling (AREA)
Abstract
A kind of eddy current type oscillating jet pressure pulse friction reducer, the present invention is connected by top connection by screw thread with outer tube, the outer tube other end is connected 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 passage, vortex cavity and vortex cavity export mixes.The configuration of the present invention is simple, compact, major part only one, no any movement parts, complex conditions adaptability are good；By varying fluidic oscillator inlet nozzle width come change system average pressure drop and frequency of oscillation, meet different working condition requirements.
Description
Technical field
The present invention relates to a kind of drilling well vibration friction reducer, particularly for directed drillings such as extended reach well and horizontal wells
The down-hole pressure pulse friction reducer in field.
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 well 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 cycle.
Existing pressure pulse friction reducer mainly uses rotary valve pulse theory, and valve area of passage occurs at different moments
Cyclically-varying, so as to produce 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 instrument flushing resistance is on the weak side, and service life is limited.
The content of the invention
The present invention is for the problem of existing all kinds of vibration friction reducers are complicated, service life is low, there is provided a kind of whirlpool
Streaming oscillating jet pressure pulse friction reducer.
The purpose of the present invention is what is be achieved through the following technical solutions：
Eddy current type oscillating jet pressure pulse friction reducer, is to be connected by top connection by screw thread with outer tube, outer tube passes through
Screw thread is connected 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, positioned at eddy current type fluidic oscillator center top, two fluidic oscillators are equipped with left and right sides of fluidic oscillator entrance
Road or fluidic oscillator control chamber are controlled, two fluidic oscillator Efferent tubes, two jet streams are equipped with below fluidic oscillator entrance
Oscillator Efferent tube leads to a vortex amplifier radial direction low resistance flow channel and a tangential high-drag of vortex amplifier respectively
Road is connected, and vortex amplifier radial direction low resistance flow channel and the tangential high-drag passage of vortex amplifier connect with a vortex cavity
It is logical, 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.
Alternatively, it is each on bottom plate and cover board to set a vortex cavity to export or on one of bottom plate or cover board respectively
Single vortex cavity is set to export.
Alternatively, vortex cavity outer contour 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
It is random amesiality and enter the fluidic oscillator Efferent tube of side, since fluidic oscillator controls control inside road or control chamber
Stream effect processed makes jet stream 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 passage 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, so as to cause periodic pressure to fluctuate, forms pressure pulse.
The configuration of the present invention is simple, compact, major part only have one, no any movement parts, complex conditions adaptability
It is good；Can by varying fluidic oscillator inlet nozzle width come change system average pressure drop and frequency of oscillation；Using hard
Matter alloy stiff materials processing and manufacturing erosive wear resistance is good.
Brief description of the drawings
Fig. 1 is eddy current type oscillating jet pressure pulse friction reducer structure chart；
Fig. 2 is A-A profiles in Fig. 1；
Fig. 3 is second embodiment of the invention 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
Oscillator.
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 passage of VI-vortex amplifier；Ⅶ—
Vortex cavity；VIII-vortex cavity exports；Ⅸ-lower contact central passage；Ⅹ-emptying road；Ⅺ-fluidic oscillator control chamber.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
In Fig. 1, top connection 1 is connected by screw thread with outer tube 2, and the inside of top connection 1 middle part is equipped with top connection central passage I；
Outer tube 2 is connected 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 passage VI of a vortex amplifier, a vortex cavity VII and a vortex cavity outlet VIII, its
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 passage of vortex amplifier, and vortex amplifier is radially
Low resistance flow channel V and tangential VI lower end of high-drag passage 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
Connected with lower contact central passage Ⅸ.
Embodiment 1
Fig. 1 shows that the first way of realization according to the present invention, including top connection 1 are connected by screw thread with outer tube 2,
Outer tube 2 is connected by screw thread with lower contact 4, is eddy current type fluidic oscillator 3 between 2 inside top connection 1 of outer tube and lower contact 4,
Eddy current type fluidic oscillator 3 mainly includes a fluidic oscillator entrance II, and two fluidic oscillators control road III, two jet streams
Oscillator Efferent tube IV, a vortex amplifier radial direction low resistance flow channel V, the tangential high-drag passage VI of a vortex amplifier,
One vortex cavity VII and a vortex cavity outlet VIII, 3 upper end of eddy current type fluidic oscillator contacts with top connection 1 and uses sealing ring
Sealing, 3 lower end of eddy current type fluidic oscillator contacts and compresses with lower contact 4.
Embodiment 2
Fig. 3 shows that second of way of realization according to the present invention, including top connection 1 are connected by screw thread with outer tube 2,
Outer tube 2 is connected by screw thread with lower contact 4, is eddy current type fluidic oscillator 3 between 2 inside top connection 1 of outer tube and lower contact 4,
Eddy current type fluidic oscillator 3 mainly includes a fluidic oscillator entrance II, two fluidic oscillator control chambers Ⅺ, two jet streams
Oscillator Efferent tube IV, a vortex amplifier radial direction low resistance flow channel V, the tangential high-drag passage VI of a vortex amplifier,
One vortex cavity VII and a vortex cavity outlet VIII, 3 upper end of eddy current type fluidic oscillator contacts with top connection 1 and uses sealing ring
Sealing, 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 connected by top connection by screw thread with outer tube, outside
The pipe other end is connected 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, fluidic oscillator entrance lower section are equipped with two fluidic oscillators and export
Road, two fluidic oscillator Efferent tubes respectively with vortex amplifier radial direction low resistance flow channel and the tangential high-drag of vortex amplifier
Passage is connected, and vortex amplifier radial direction low resistance flow channel and the tangential high-drag passage of vortex amplifier are connected with vortex cavity,
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 claimed 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 claimed 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 claimed 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 claimed in claim 1, it is characterised in that：In bottom plate and cover board
It is upper to set a vortex cavity to export respectively, or set single vortex cavity to export on one of bottom plate, cover board.
6. eddy current type oscillating jet pressure pulse friction reducer as claimed in claim 1, it is characterised in that：Vortex cavity outer contour
It is circular arc or elliptic arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369430.0A CN107956423B (en) | 2017-12-19 | 2017-12-19 | Vortex oscillating jet flow pressure pulse drag reduction tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369430.0A CN107956423B (en) | 2017-12-19 | 2017-12-19 | Vortex oscillating jet flow pressure pulse drag reduction tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107956423A true CN107956423A (en) | 2018-04-24 |
| CN107956423B CN107956423B (en) | 2024-04-05 |
Family
ID=61959346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711369430.0A Active CN107956423B (en) | 2017-12-19 | 2017-12-19 | Vortex oscillating jet flow pressure pulse drag reduction tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN107956423B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209231A (en) * | 2018-11-15 | 2019-01-15 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of fluid power pulsation casing pipe running device and method |
| CN110043191A (en) * | 2019-04-23 | 2019-07-23 | 西南石油大学 | It can produce the fluidic oscillation tool of axial compressive force pulse |
| CN110424933A (en) * | 2019-08-15 | 2019-11-08 | 东营市元捷石油机械有限公司 | A kind of oil increasing device |
| CN110559895A (en) * | 2019-09-20 | 2019-12-13 | 中南大学 | Oscillating jet type micro-nano bubble generating device |
| 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 |
| CN113309512A (en) * | 2021-05-25 | 2021-08-27 | 吉林大学 | Erosion-resistant corrosion-resistant hard alloy mud pulse generator rotor and preparation method thereof |
| CN113756722A (en) * | 2021-09-29 | 2021-12-07 | 中南大学 | Oscillating jet type pressure pulse generator |
| CN113863861A (en) * | 2021-10-22 | 2021-12-31 | 中南大学 | Single feedback channel vortex cavity type pressure pulse generating device |
| CN113953132A (en) * | 2021-10-20 | 2022-01-21 | 中南大学 | Hydraulic jet oscillator element |
| CN116005498A (en) * | 2022-12-03 | 2023-04-25 | 中南大学 | Pulsation grouting device for repairing high-speed rail gap |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209231A (en) * | 2018-11-15 | 2019-01-15 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of fluid power pulsation casing pipe running device and method |
| CN110043191A (en) * | 2019-04-23 | 2019-07-23 | 西南石油大学 | It can produce the fluidic oscillation tool of axial compressive force pulse |
| CN110424933A (en) * | 2019-08-15 | 2019-11-08 | 东营市元捷石油机械有限公司 | A kind of oil increasing device |
| CN110559895A (en) * | 2019-09-20 | 2019-12-13 | 中南大学 | Oscillating jet type micro-nano bubble generating device |
| CN113309512A (en) * | 2021-05-25 | 2021-08-27 | 吉林大学 | Erosion-resistant corrosion-resistant hard alloy mud pulse generator rotor and preparation method thereof |
| 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 |
| CN113953132A (en) * | 2021-10-20 | 2022-01-21 | 中南大学 | Hydraulic jet oscillator element |
| CN113863861A (en) * | 2021-10-22 | 2021-12-31 | 中南大学 | Single feedback channel vortex cavity type pressure pulse generating device |
| CN116005498A (en) * | 2022-12-03 | 2023-04-25 | 中南大学 | Pulsation grouting device for repairing high-speed rail gap |
| CN116005498B (en) * | 2022-12-03 | 2023-08-18 | 中南大学 | Pulsation grouting device for repairing high-speed rail gap |
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