CN107435520B - Hydraulic oscillator powered by rotating wheel - Google Patents
Hydraulic oscillator powered by rotating wheel Download PDFInfo
- Publication number
- CN107435520B CN107435520B CN201710814084.6A CN201710814084A CN107435520B CN 107435520 B CN107435520 B CN 107435520B CN 201710814084 A CN201710814084 A CN 201710814084A CN 107435520 B CN107435520 B CN 107435520B
- Authority
- CN
- China
- Prior art keywords
- rotating wheel
- joint
- runner
- spline shaft
- upper shell
- 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.)
- Active
Links
Images
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
Abstract
The invention relates to a hydraulic oscillator powered by a rotating wheel; belongs to the technical field of oil gas exploitation drilling tools. The device consists of a spline shaft, an upper shell, a lower shell, an intermediate joint and a lower joint, wherein the spline shaft is arranged in the upper shell through a connecting sleeve, the lower shell is arranged at one end of the upper shell through an intermediate joint thread, and the lower joint is arranged at the end head thread of the lower shell; a rotating wheel is arranged in the lower shell between the lower joint and the middle joint through an upper centralizing bearing, and a rotary valve is arranged in the lower shell at one side of the rotating wheel through a lower centralizing bearing; the rotary valve is connected with the rotary wheel through threads. The hydraulic oscillator has the characteristics of simple and compact structure, few moving parts and low cost. In the working process, along with the rotation of the rotating wheel, the overflow area is periodically changed, so that intermittent pressure pulses are generated, and the vibration pup joint is driven to generate periodic axial vibration, so that static friction between the drill string and the well wall is changed into dynamic friction, friction can be effectively reduced, drilling efficiency is improved, and drilling cost is reduced.
Description
Technical Field
The invention relates to a hydraulic oscillator powered by a rotating wheel; belongs to the technical field of oil gas exploitation drilling tools.
Background
In complex structure wells such as horizontal wells, highly deviated wells and horizontal branch wells, the friction between a drill string and a well wall is gradually increased along with the increase of the well entering depth, the drilling pressure cannot be effectively transmitted to a drill bit, so that the mechanical drilling speed is reduced, and when the friction between the drill string and the well wall is large enough, the drill string is easy to twist and deform and the well accident is induced. In the well drilling process of the well, the drilling tool is subjected to the increase of the pressure of the drill string at the well section with larger curvature of the well bore or the long horizontal section, the friction force between the drill string and the well wall is increased, the pressure supporting phenomenon of the drill string is serious, the weight on bit can not be effectively applied, and the drilling speed is seriously influenced. The hydraulic oscillator can enable the drill string to generate periodic vibration with certain frequency and amplitude, so that static friction between the drill string and a well wall is changed into dynamic friction in the drilling process, friction resistance is reduced, and the pressure supporting phenomenon can be effectively reduced. Has obvious advantages in reducing friction resistance in the feeding process, improving the mechanical drilling speed, increasing the horizontal footage and shortening the drilling period. However, due to the structural limitation of the existing hydraulic oscillator, the ratio of the rotating speed to the vibration frequency is not adjustable, high-frequency vibration cannot be generated to meet the drilling requirement, the power part adopts turbines or screws, the structure is complex, and the cost is high.
Disclosure of Invention
The invention aims at: the static friction in the drilling process can be changed into dynamic friction, and high-frequency axial impact can be generated; so as to effectively reduce friction and improve the hydraulic oscillator of the runner power of the drilling speed.
The technical scheme of the invention is as follows:
a hydraulic oscillator powered by a rotating wheel; the novel self-locking type self-locking nut comprises a spline shaft, an upper shell, a lower shell, an intermediate joint and a lower joint, and is characterized in that: a spline shaft is arranged in the upper shell through a connecting sleeve, one end of the upper shell is provided with a lower shell through an intermediate joint thread, and the end head of the lower shell is provided with a lower joint through an intermediate joint thread; a rotating wheel is arranged in the lower shell between the lower joint and the middle joint through an upper centralizing bearing, and a rotary valve is arranged in the lower shell at one side of the rotating wheel through a lower centralizing bearing; the rotary valve is connected with the rotary wheel through threads.
The spline shaft is characterized in that sliding keys are uniformly distributed on the circumference of the spline shaft, key grooves are formed in the inner wall of the connecting sleeve corresponding to the sliding keys, and the spline shaft is in sliding connection with the connecting sleeve through the matching of the sliding keys and the key grooves.
And limiting shoulders are respectively arranged on the circumferences of the spline shaft at one end of the sliding key and the inner wall of the upper shell, and a disc spring is arranged on the spline shaft between the limiting shoulders.
The upper shell is in threaded connection with the connecting sleeve.
The spline shaft end threads in the upper shell are provided with anti-turning-around devices, and the anti-turning-around devices are in contact connection with the bosses on the inner wall of the upper shell.
The lower connector is provided with a lower connector central hole, the lower connector outside the lower connector central hole is provided with a plurality of communication holes, and the communication holes are communicated with the lower connector central hole.
The rotating wheel is of a cross structure, the rotating wheel is provided with a liquid flow hole, a plurality of spiral flow channels are uniformly distributed on the rotating wheel outside the liquid flow hole, the spiral flow channels are communicated with the liquid flow hole, and a sealing ring is arranged on the rotating wheel on one side of the spiral flow channels.
The rotating wheel is provided with a positioning block in a threaded manner, and a ball bearing is arranged between the positioning block and the middle joint.
The rotary valve is disc-shaped, and a runner hole corresponding to the communication hole is arranged on the rotary valve.
The invention has the beneficial effects that:
the hydraulic oscillation of the rotating wheel power has the characteristics of simple and compact structure, few moving parts and low cost. In the working process, along with the rotation of the rotating wheel, the overflow area is periodically changed, so that intermittent pressure pulses are generated, and the vibration pup joint is driven to generate periodic axial vibration, so that static friction between the drill string and the well wall is changed into dynamic friction, friction can be effectively reduced, drilling efficiency is improved, and drilling cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;
FIG. 3 is a schematic cross-sectional view of a rotor of the present invention;
fig. 4 is a schematic cross-sectional structure of the rotary valve of the present invention.
In the figure: 1. the spline shaft, 2, the upper shell, 3, the lower shell, 4, the middle joint, 5, the lower joint, 6, the connecting sleeve, 7, the disc spring, 8, the anti-turning around, 9, the upper centralizing bearing, 10, the rotating wheel, 11, the liquid flow hole, 12, the spiral runner, 13, the lower centralizing bearing, 14, the rotating valve, 15, the center hole of the lower joint, 16, the communication hole, 17, the runner hole, 18, the positioning block, 19 and the ball bearing.
Detailed Description
The hydraulic oscillator of the rotating wheel power consists of a spline shaft 1, an upper shell 2, a lower shell 3, an intermediate joint 4 and a lower joint 5, wherein the spline shaft 1 is arranged in the upper shell 2 through a connecting sleeve 6, and the upper shell 2 is in threaded connection with the connecting sleeve 6; sliding keys are uniformly distributed on the circumference of the spline shaft 1, key grooves are formed in the inner wall of the connecting sleeve 6 corresponding to the sliding keys, and the spline shaft 1 is in sliding connection with the connecting sleeve 6 through the matching of the sliding keys and the key grooves.
Limiting shoulders are respectively arranged on the inner wall of the upper shell 2 and the circumference of the spline shaft 1 at one end of the sliding key, and a disc spring 7 is arranged on the spline shaft 1 between the limiting shoulders. The end thread of the spline shaft 1 in the upper shell 2 is provided with a U-turn preventing device 8, the U-turn preventing device 8 is in contact connection with a boss on the inner wall of the upper shell 2, and the purpose of the U-turn preventing device 8 is to prevent the spline shaft 1 from sliding out.
One end of the upper shell 1 is provided with a lower shell 3 through an intermediate joint 4 in a threaded manner, and the end head of the lower shell 3 is provided with a lower joint 5 in a threaded manner; the lower joint 5 is provided with a lower joint center hole 15, the lower joint 5 outside the lower joint center hole 15 is provided with a plurality of communication holes 16, and the communication holes 16 are communicated with the lower joint center hole 15.
The runner 10 is installed through last righting bearing 9 in the lower casing 3 between lower joint 5 and the intermediate head 4, and runner 10 is the cross structure, is provided with liquid flow hole 11 on the runner 10, and the equipartition has many spiral runner 12 on runner 10 in the liquid flow hole 11 outside, and spiral runner 12 communicates with liquid flow hole 11, is provided with the sealing washer on runner 10 of spiral runner 12 one side to prevent drilling fluid backward flow at work.
A rotary valve 14 is arranged in the lower shell 3 at one side of the rotary wheel 10 through a lower centralizing bearing 13; the rotary valve 14 is screwed with the rotary wheel 10. The rotary valve 14 has a disk shape, and the rotary valve 14 is provided with a flow passage hole 17 corresponding to the communication hole 16.
A positioning block 18 is arranged at one end of the rotating wheel 10 in a threaded manner, and a ball bearing 19 is arranged between the positioning block 18 and the middle joint 4.
The hydraulic oscillator of the runner power comprises a power nipple by a spline shaft 1, an upper shell 2, a connecting sleeve 6 and a disc spring 7, and an oscillation nipple by a lower shell 3, a lower joint 5, a rotary valve 14 and a runner 10. When the rotary valve is in operation, drilling fluid enters the rotary wheel 10 from the central hole of the spline shaft 1, the lower end of the liquid flow hole 11 of the rotary wheel 10 is closed, the drilling fluid enters a gap between the rotary wheel 10 and the lower shell 3 through the spiral flow passage 12 on the rotary wheel 10, and impact is formed, so that the rotary wheel 10 is pushed to rotate, and the rotary valve 14 rotates along with the rotary wheel 10 due to the fact that the lower part of the rotary wheel 10 is in threaded connection with the rotary valve 14. The rotary valve 14 forms a seal with the lower joint center hole 15 of the lower joint 5; the drilling fluid is forced to enter the communication hole 16 of the lower joint 5 through the runner hole 17 of the rotary valve 14, and the rotary valve 14 forms periodic opening and closing on the communication hole 16 along with the rotation of the rotary wheel 10, so that the flow passage area is periodically changed, simple harmonic pressure pulses are generated, the oscillating nipple is driven to generate periodic axial vibration, and meanwhile, the simple harmonic pressure waves are transmitted to the belleville spring 7, and the connecting sleeve 6 and the upper shell 2 are driven to generate simple harmonic vibration in the axial direction; therefore, static friction between the drill string and the well wall is changed into dynamic friction, friction resistance can be effectively reduced, drilling efficiency is improved, and drilling cost is reduced.
The hydraulic oscillator has the advantages of simplicity, compactness, few moving parts and low cost. And by adjusting the number of flow passage holes 17 of the rotary valve 14 and communication holes 16 on the lower joint 5; the ratio of the rotation speed to the vibration frequency can be adjusted to adapt to different underground working conditions.
Claims (7)
1. A hydraulic oscillator powered by a rotating wheel; the novel self-locking type self-locking device comprises a spline shaft (1), an upper shell (2), a lower shell (3), an intermediate joint (4) and a lower joint (5), wherein the spline shaft (1) is installed in the upper shell (2) through a connecting sleeve (6), the lower shell (3) is installed at one end of the upper shell (2) through the intermediate joint (4) in a threaded manner, and the lower joint (5) is installed at the end of the lower shell (3) in a threaded manner; be provided with down connect centre bore (15) on lower joint (5), be provided with a plurality of intercommunicating pore (16) on lower joint (5) in the outside of lower joint centre bore (15), install runner (10) through last righting bearing (9) in lower casing (3) between lower joint (5) and intermediate head (4), its characterized in that: the rotating wheel (10) is of a cross structure, a liquid flow hole (11) is formed in the rotating wheel (10), a plurality of spiral flow channels (12) are uniformly distributed on the rotating wheel (10) outside the liquid flow hole (11), the spiral flow channels (12) are communicated with the liquid flow hole (11), a sealing ring is arranged on the rotating wheel (10) at one side of the spiral flow channels (12), a positioning block (18) is arranged on the rotating wheel (10) in a threaded manner, and a ball bearing (19) is arranged between the positioning block (18) and the middle joint (4); a rotary valve (14) is arranged in the lower shell (3) at one side of the rotary wheel (10) through a lower centralizing bearing (13); the rotary valve (14) is provided with a runner hole (17) corresponding to the communication hole (16); the rotary valve (14) is in threaded connection with the rotary wheel (10); during operation, drilling fluid enters the rotating wheel (10) from the central hole of the spline shaft 1, the drilling fluid enters a gap between the rotating wheel (10) and the lower shell (3) through a spiral runner (12) on the rotating wheel (10) and forms impact, so that the rotating wheel (10) is pushed to rotate, and the rotating valve (14) rotates along with the rotating wheel (10) due to the fact that the lower part of the rotating wheel (10) is in threaded connection with the rotating valve (14); the rotary valve (14) forms a seal with the lower joint center hole (15) of the lower joint (5); forcing drilling fluid to enter the communication hole (16) of the lower joint (5) through the runner hole (17) of the rotary valve (14), and enabling the rotary valve (14) to periodically open and close the communication hole (16) along with the rotation of the rotary wheel (10), so that the flow area is periodically changed, simple harmonic pressure pulses are generated, the oscillating nipple is driven to generate periodic axial vibration, meanwhile, the simple harmonic pressure waves are transmitted to the belleville spring (7), and the connecting sleeve (6) and the upper shell (2) are driven to generate simple harmonic vibration in the axial direction; therefore, static friction between the drill string and the well wall is changed into dynamic friction, so that friction is reduced, and drilling efficiency is improved.
2. A runner-powered hydraulic oscillator as claimed in claim 1; the method is characterized in that: the spline shaft (1) is uniformly distributed with sliding keys on the circumference, key grooves are formed in the inner wall of the connecting sleeve (6) corresponding to the sliding keys, and the spline shaft (1) is in sliding connection with the connecting sleeve (6) through matching of the sliding keys and the key grooves.
3. A runner-powered hydraulic oscillator as claimed in claim 1; the method is characterized in that: limiting shoulders are respectively arranged on the inner wall of the upper shell (2) and the circumference of the spline shaft (1) at one end of the sliding key, and a disc spring (7) is arranged on the spline shaft between the limiting shoulders.
4. A runner-powered hydraulic oscillator as claimed in claim 1; the method is characterized in that: the upper shell (2) is in threaded connection with the connecting sleeve (6).
5. A runner-powered hydraulic oscillator as claimed in claim 1; the method is characterized in that: the end thread of the spline shaft (1) in the upper shell (2) is provided with an anti-turning-around (8), and the anti-turning-around (8) is in contact connection with a boss on the inner wall of the upper shell (2).
6. A runner-powered hydraulic oscillator as claimed in claim 1; the method is characterized in that: a plurality of communication holes (16) are arranged on the lower joint (5) outside the lower joint center hole (15), and the communication holes (16) are communicated with the lower joint center hole (15).
7. A runner-powered hydraulic oscillator as claimed in claim 1; the method is characterized in that: the rotary valve (14) is disc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710814084.6A CN107435520B (en) | 2017-09-11 | 2017-09-11 | Hydraulic oscillator powered by rotating wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710814084.6A CN107435520B (en) | 2017-09-11 | 2017-09-11 | Hydraulic oscillator powered by rotating wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107435520A CN107435520A (en) | 2017-12-05 |
| CN107435520B true CN107435520B (en) | 2023-05-26 |
Family
ID=60461965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710814084.6A Active CN107435520B (en) | 2017-09-11 | 2017-09-11 | Hydraulic oscillator powered by rotating wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107435520B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468514B (en) * | 2018-05-24 | 2023-05-26 | 长江大学 | Oscillating device for underground hydraulic oscillator |
| CN108678675B (en) * | 2018-08-07 | 2023-07-25 | 长江大学 | Three-dimensional hydraulic oscillator |
| CN109372424B (en) * | 2018-12-13 | 2023-09-29 | 长江大学 | Composite impact speed-increasing drilling tool for coiled tubing |
| CN109812231B (en) * | 2019-03-27 | 2024-03-26 | 中国石油大学(北京) | Pulse vibration accelerating tool |
| CN110905400B (en) * | 2019-11-27 | 2021-09-03 | 中国石油大学(华东) | Pulse weight-on-bit generator |
| CN112431568B (en) * | 2020-11-24 | 2021-11-26 | 中国石油大学(北京) | Bidirectional hydraulic oscillator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460783U (en) * | 2009-07-22 | 2010-05-12 | 中国石油天然气集团公司 | Pressure wave generating device for vibration cementing |
| CN104405287B (en) * | 2014-10-19 | 2016-05-04 | 长江大学 | A kind of drilling well dipulse hydroscillator |
| CN104405288A (en) * | 2014-10-24 | 2015-03-11 | 缪宏 | Hydraulic simple harmonic oscillator for well drilling |
| CN105089501B (en) * | 2015-06-09 | 2017-10-24 | 中石化石油机械股份有限公司研究院 | A kind of hydroscillator |
| CN207144825U (en) * | 2017-09-11 | 2018-03-27 | 长江大学 | A kind of hydroscillator of runner power |
-
2017
- 2017-09-11 CN CN201710814084.6A patent/CN107435520B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107435520A (en) | 2017-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107435520B (en) | Hydraulic oscillator powered by rotating wheel | |
| CN106639944B (en) | A kind of turbine type downhole hydraulic oscillator | |
| CN107165577B (en) | Screw underbalance pulse hydroscillator | |
| CN111577141B (en) | Turbine type hydraulic oscillator for well drilling | |
| WO2016150113A1 (en) | Positive displacement motor drill and rock breaking well drilling method therefor | |
| CN106917586B (en) | Screw type underground hydraulic oscillator | |
| CN207245619U (en) | A kind of hydroscillator | |
| CN108468514B (en) | Oscillating device for underground hydraulic oscillator | |
| CN106639943B (en) | High frequency reverse reset axial vibration percussion tool | |
| CN104405287A (en) | Dual-pulse hydraulic oscillator for well drilling | |
| WO2019061617A1 (en) | Negative pressure pulse oscillator | |
| CN108104715B (en) | Torsion impactor based on turbine and gear | |
| CN104165027A (en) | Three-dimensional turbine vibrator for petroleum drilling | |
| CN105735929B (en) | The SAW Oscillators of efficient rock-breaking are realized using impact function | |
| CN105275400A (en) | Novel hydraulic oscillator of vertical valve structure | |
| CN208534402U (en) | A kind of hydroscillator | |
| CN108442883B (en) | Underground hydraulic oscillator | |
| CN107514229A (en) | A kind of high frequency water jet turbodrill | |
| CN206129207U (en) | Novel oscillatory surge ware based on turbine and cam | |
| CN108049803B (en) | Impeller type differential torque impact device | |
| CN205558849U (en) | Utilize turbine to produce downhole tool of shock oscillation | |
| CN109707313A (en) | Vane type multiple-pulse hydroscillator | |
| CN109611028B (en) | Hydraulic oscillator based on roller and impeller | |
| CN208669203U (en) | Screw circumferential direction percussion drilling tool | |
| CN205778542U (en) | A kind of hydroscillator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |