CN107939293A - Down-hole pressure impulse generator - Google Patents
Down-hole pressure impulse generator Download PDFInfo
- Publication number
- CN107939293A CN107939293A CN201711367833.1A CN201711367833A CN107939293A CN 107939293 A CN107939293 A CN 107939293A CN 201711367833 A CN201711367833 A CN 201711367833A CN 107939293 A CN107939293 A CN 107939293A
- Authority
- CN
- China
- Prior art keywords
- road
- fluidic oscillator
- generating device
- pulse generating
- pressure pulse
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 6
- 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
- 230000010355 oscillation Effects 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003913 materials processing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
Abstract
Down-hole pressure impulse generator, outer tube of the present invention is connected between top connection and lower contact, it is pressure pulse generating device between outer tube top connection and lower contact, pressure pulse generating device upper end contacts with top connection and sealed with sealing ring, and lower end contacts and compresses with lower contact；The pressure pulse generating device is fastened and is bolted connection by bottom plate and cover board, pressure pulse generating device includes a nozzle arrangements fluidic oscillator entrance, two fluidic oscillators control road, two fluidic oscillators control road passage, one signal road, one is put down attached wall, a recessed attached wall, a vortex cavity and vortex cavity export mixes.The configuration of the present invention is simple, compact, part are an entirety, and no any movement parts, complex conditions adaptability are good；System oscillation frequency and pressure drop can be changed by varying fluidic oscillator inlet nozzle width and signal road length；It is good using hard alloy stiff materials processing and manufacturing erosive wear resistance.
Description
Technical field
The present invention relates to a kind of down-hole pressure pulse generation instrument, is particularly led for oil/gas drilling, no-dig technique drilling well etc.
Domain middle-deep well, ultradeep well, directed drilling down-hole pressure impulse tool.
Background technology
Pressure pulse generator can not only produce pressure pulse wave act on bottom hole be conducive to remove shaft bottom landwaste, formed
The instantaneous negative pressure in shaft bottom, improves rate of penetration, and can act on vibration Telescopic short piece, forms axial vibration so as to reduce drill string
The frictional resistance between hole wall, the backing pressure of reduction, glutinous card problem, improves drilling efficiency.
Existing bottom pressure pulse generating tool generally existing is complicated, complex conditions bad adaptability, the service life is low, shakes
The problem of dynamic frequency and poor pulse adjustability, do not obtain large-scale application.
The content of the invention
The object of the present invention is to provide a kind of down-hole pressure simple in structure, service life is long, pressure, frequency are easy to adjust
Impulse generator.
The purpose of the present invention is what is be achieved through the following technical solutions：
Down-hole pressure impulse generator, is to be connected by top connection by screw thread with outer tube, outer tube passes through screw thread and lower contact
Connection, is pressure pulse generating device between outer tube top connection and lower contact；Pressure pulse generating device upper end is with above connecing
Head is contacted and sealed with sealing ring, and pressure pulse generating device lower end contacts and compresses with lower contact；The pressure pulse occurs
Element is fastened and is bolted connection by bottom plate and cover board, and pressure pulse generating device shakes including a nozzle arrangements jet stream
Device entrance is swung, positioned at pressure pulse generating device center top, a fluidic oscillator left side is equipped with the left of fluidic oscillator entrance
Road is controlled, right side is equipped with the right control road of a fluidic oscillator, and signal road is arranged on bottom plate extrados, the right control of fluidic oscillator
Road processed is connected by right control road passage with signal road, and the left control road of fluidic oscillator is connected by left control road passage with signal road
It is logical, one is equipped with below fluidic oscillator entrance and puts down attached wall and a recessed attached wall, is vortex cavity below two attached walls,
Vortex cavity arc profile center is exported equipped with vortex cavity.
Preferably, the fluid media (medium) which uses is drilling mud, gas or foam.
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, signal road is arranged on bottom plate extrados, its length can be adjusted freely on demand, and structure type is not limited to
S type structures in figure.
Change fluidic oscillator inlet nozzle width and signal road length to change system oscillation frequency and pressure drop.
Operation principle：Fluid media (medium) enters fluidic oscillator entrance by top connection central passage, after being accelerated by nozzle
Random amesiality attached wall, makes jet stream can not stablize attached wall since fluidic oscillator signal road internal flow acts on control road
Jet stream self-oscillation is formed with side, when the attached wall of fluid media (medium) is in flat attached wall, vortex is entered to approach the direction of radial direction
Chamber, and from vortex cavity outlet enter emptying road enter back into lower contact central passage when, vortex cavity throttling action is smaller, fluid
Resistance is relatively low, and system pressure drop is relatively low, and when the attached wall of fluid media (medium) is in recessed attached wall, vortex is entered to approach tangential direction
Chamber, and from vortex cavity outlet enter emptying road enter back into lower contact central passage when, vortex cavity throttling action is larger, fluid
Resistance is higher, and system pressure drop is higher, due to the self-oscillation characteristic of fluidic oscillator, the two Period Process is alternately gone out
It is existing, so as to cause periodic pressure to fluctuate, form 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；System oscillation frequency and pressure can be changed by varying fluidic oscillator inlet nozzle width and signal road length
Drop；It is good using hard alloy stiff materials processing and manufacturing erosive wear resistance.
Brief description of the drawings
Fig. 1 is down-hole pressure impulse generator structure chart；
Fig. 2 is A-A profiles in Fig. 1；
Fig. 3 is bottom plate extrados structure chart.
1 top connection, 2 outer tubes, 3 fluidic oscillators, 4 lower contacts, 5 bottom plates, 6 cover boards.
I-top connection central fluid channel；II-fluidic oscillator entrance；The right control road of III-fluidic oscillator；Ⅳ—
The left control road of fluidic oscillator；V-put down attached wall；VI-recessed attached wall；VII-vortex cavity；VIII-lower contact central passage；
Ⅸ-vortex cavity exports；Ⅹ-bottom plate extrados；Ⅺ-emptying road；Ⅻ-signal road；X III-left control road passage；XⅣ—
Right control road passage.
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 VIII；2 inside top connection 1 of outer tube with
It is pressure pulse generating device 3 between lower contact 4；3 upper end of pressure pulse generating device contacts and close with sealing ring with top connection 1
Envelope, 3 lower end of pressure pulse generating device contacts and compresses with lower contact 4；Pressure pulse generating device 3 is that interference is matched somebody with somebody with outer tube 2
Close, pressure pulse generating device 3 is fastened and is bolted connection by bottom plate 5 and cover board 6, and pressure pulse generating device 3 wraps
Include a fluidic oscillator entrance II, the right control road III of a fluidic oscillator, a right control road passage X IV, a jet stream
The left control road IV of oscillator, a left control road passage X III, a signal road Ⅻ, one is put down attached wall V, a recessed attached wall
VI, a vortex cavity VII and a vortex cavity export Ⅸ；Wherein, fluidic oscillator entrance II connects with top connection central passage I
Logical, the right control road III of fluidic oscillator is connected by right control road passage X IV with signal road Ⅻ, the left control road IV of fluidic oscillator
Connected by left control road passage X III with signal road Ⅻ；Signal road Ⅻ is arranged on the bottom plate extrados Ⅹ of bottom plate 5；Outer tube 2 with
Emptying road Ⅺ is formed between cover board 6, vortex cavity outlet Ⅸ connects vortex cavity VII with emptying road Ⅺ；Empty in road Ⅺ and lower contact
Heart passage VIII connects.
Claims (5)
1. down-hole pressure impulse generator, it is characterised in that：It is connected by top connection by screw thread with outer tube, the outer tube other end passes through
Screw thread is connected with lower contact, is pressure pulse generating device between outer tube top connection and lower contact, and member occurs for pressure pulse
Part upper end contacts with top connection and is sealed with sealing ring, and lower end contacts and compresses with lower contact；The pressure pulse generating device
Fastened and be bolted connection by bottom plate and cover board, include the fluidic oscillator entrance of a nozzle arrangements, positioned at pressure
At the top of pulse generation element central, the left control road of a fluidic oscillator is equipped with the left of fluidic oscillator entrance, right side is equipped with one
A right control road of fluidic oscillator, signal road are arranged on bottom plate extrados, and the right control road of fluidic oscillator passes through right control road
Passage is connected with signal road, and the left control road of fluidic oscillator is connected by left control road passage with signal road, and fluidic oscillator enters
One is equipped with below mouthful and puts down attached wall and a recessed attached wall, is vortex cavity below two attached walls, in vortex cavity arc profile
Center is exported equipped with vortex cavity.
2. down-hole pressure impulse generator as claimed in claim 1, it is characterised in that：The pressure pulse generating device uses
Fluid media (medium) be drilling mud, gas or foam.
3. down-hole pressure impulse generator as claimed in claim 1, it is characterised in that：The table of faying face between bottom plate and cover board
Surface roughness is less than 0.8 μm.
4. down-hole pressure impulse generator as claimed in claim 1, it is characterised in that：Bottom plate and cover board integrally use W-Co kind
Cemented carbide material.
5. down-hole pressure impulse generator as claimed in claim 1, it is characterised in that：Signal road is arranged on bottom plate extrados
On, for length by can freely adjust, structure type is S-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367833.1A CN107939293B (en) | 2017-12-19 | 2017-12-19 | Downhole pressure pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367833.1A CN107939293B (en) | 2017-12-19 | 2017-12-19 | Downhole pressure pulse generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939293A true CN107939293A (en) | 2018-04-20 |
| CN107939293B CN107939293B (en) | 2024-04-05 |
Family
ID=61940691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711367833.1A Active CN107939293B (en) | 2017-12-19 | 2017-12-19 | Downhole pressure pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939293B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1201763A (en) * | 1966-08-18 | 1970-08-12 | Lucas Industries Ltd | Fluid oscillators |
| US4134100A (en) * | 1977-11-30 | 1979-01-09 | The United States Of America As Represented By The Secretary Of The Army | Fluidic mud pulse data transmission apparatus |
| GB2002051A (en) * | 1977-08-05 | 1979-02-14 | Petroles Cie Francaise | Tool equipped with a percussive device |
| GB8719782D0 (en) * | 1987-08-21 | 1987-09-30 | Shell Int Research | Pressure variations in drilling fluids |
| CA2069953A1 (en) * | 1989-12-01 | 1991-06-02 | Alain Besson | Drilling tool with irrigation system using a fluid distributed by a fluidic oscillator |
| US5165438A (en) * | 1992-05-26 | 1992-11-24 | Facteau David M | Fluidic oscillator |
| CN200989164Y (en) * | 2006-10-09 | 2007-12-12 | 西南石油大学 | Pulsation pumping pressure drilling device for lowering underwell differential pressure |
| US20120292015A1 (en) * | 2011-05-18 | 2012-11-22 | Thru Tubing Solutions, Inc. | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods |
| US20120292020A1 (en) * | 2011-05-18 | 2012-11-22 | Thru Tubing Solutions, Inc. | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods |
| CA2774698A1 (en) * | 2011-09-29 | 2013-03-29 | Coil Solutions, Inc. | Propulsion generator and method |
| CN103774983A (en) * | 2013-12-25 | 2014-05-07 | 中国石油大学(华东) | Jet type torsional impact drilling tool |
| RU2013159257A (en) * | 2013-12-30 | 2015-07-10 | Федеральное государственное бюджетное учреждение науки Казанский научный центр Российской академии наук | DEVICE FOR COMBINED IMPACT ON PRODUCTIVE LAYER AND BOTTOM ZONE |
| CN104963624A (en) * | 2015-07-17 | 2015-10-07 | 东北石油大学 | Flow distributing type hydraulic oscillation circumferential impactor |
| US9316065B1 (en) * | 2015-08-11 | 2016-04-19 | Thru Tubing Solutions, Inc. | Vortex controlled variable flow resistance device and related tools and methods |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN206668157U (en) * | 2017-03-25 | 2017-11-24 | 四机赛瓦石油钻采设备有限公司 | A kind of auto-excitation type hydroscillator |
| CN207660545U (en) * | 2017-12-19 | 2018-07-27 | 中南大学 | Down-hole pressure impulse generator |
-
2017
- 2017-12-19 CN CN201711367833.1A patent/CN107939293B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1201763A (en) * | 1966-08-18 | 1970-08-12 | Lucas Industries Ltd | Fluid oscillators |
| GB2002051A (en) * | 1977-08-05 | 1979-02-14 | Petroles Cie Francaise | Tool equipped with a percussive device |
| US4134100A (en) * | 1977-11-30 | 1979-01-09 | The United States Of America As Represented By The Secretary Of The Army | Fluidic mud pulse data transmission apparatus |
| GB8719782D0 (en) * | 1987-08-21 | 1987-09-30 | Shell Int Research | Pressure variations in drilling fluids |
| CA2069953A1 (en) * | 1989-12-01 | 1991-06-02 | Alain Besson | Drilling tool with irrigation system using a fluid distributed by a fluidic oscillator |
| US5165438A (en) * | 1992-05-26 | 1992-11-24 | Facteau David M | Fluidic oscillator |
| CN200989164Y (en) * | 2006-10-09 | 2007-12-12 | 西南石油大学 | Pulsation pumping pressure drilling device for lowering underwell differential pressure |
| US20120292020A1 (en) * | 2011-05-18 | 2012-11-22 | Thru Tubing Solutions, Inc. | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods |
| US20120292015A1 (en) * | 2011-05-18 | 2012-11-22 | Thru Tubing Solutions, Inc. | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods |
| CA2774698A1 (en) * | 2011-09-29 | 2013-03-29 | Coil Solutions, Inc. | Propulsion generator and method |
| CN103774983A (en) * | 2013-12-25 | 2014-05-07 | 中国石油大学(华东) | Jet type torsional impact drilling tool |
| RU2013159257A (en) * | 2013-12-30 | 2015-07-10 | Федеральное государственное бюджетное учреждение науки Казанский научный центр Российской академии наук | DEVICE FOR COMBINED IMPACT ON PRODUCTIVE LAYER AND BOTTOM ZONE |
| CN104963624A (en) * | 2015-07-17 | 2015-10-07 | 东北石油大学 | Flow distributing type hydraulic oscillation circumferential impactor |
| US9316065B1 (en) * | 2015-08-11 | 2016-04-19 | Thru Tubing Solutions, Inc. | Vortex controlled variable flow resistance device and related tools and methods |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN206668157U (en) * | 2017-03-25 | 2017-11-24 | 四机赛瓦石油钻采设备有限公司 | A kind of auto-excitation type hydroscillator |
| CN207660545U (en) * | 2017-12-19 | 2018-07-27 | 中南大学 | Down-hole pressure impulse generator |
Non-Patent Citations (5)
| Title |
|---|
| 柳鹤;冯强;周俊然;吴欣袁;赵鹏;王建龙;: "射流式水力振荡器振动频率分析与现场应用", 石油机械, no. 01 * |
| 熊青山, 彭振斌, 殷琨, 刘静: "射流元件损坏机理试验研究及分析", 水文地质工程地质, no. 05, 20 September 2004 (2004-09-20) * |
| 熊青山;王越之;夏宏南;: "液动射流冲击器射流元件深井失效研究及对策", 凿岩机械气动工具, no. 03, 30 August 2006 (2006-08-30) * |
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| Publication number | Publication date |
|---|---|
| CN107939293B (en) | 2024-04-05 |
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