CN109611028A - Hydroscillator based on roller and impeller - Google Patents
Hydroscillator based on roller and impeller Download PDFInfo
- Publication number
- CN109611028A CN109611028A CN201910015320.7A CN201910015320A CN109611028A CN 109611028 A CN109611028 A CN 109611028A CN 201910015320 A CN201910015320 A CN 201910015320A CN 109611028 A CN109611028 A CN 109611028A
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- China
- Prior art keywords
- impeller
- housing
- roller
- impeller housing
- throttle plate
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- 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 discloses a kind of oscillators with drag reduction speed-raising in the fields such as oil drilling.Its technical solution is: top connection, outer housing and lower contact pass sequentially through screw thread and connect, and throttle plate is connect with top connection by screw thread, and throttle plate is connect with straight pin by lock-screw, and straight pin is between impeller and throttle plate；Impeller shaft, impeller and impeller housing are welded as a whole, and string bearing is equipped between impeller housing and outer housing, and string bearing upper and lower ends are positioned by inner and outer sleeves, and impeller housing lower end is in contact with roller upper end；Roller, which is connected through a screw thread, to be fixed on support tube, is connected between support tube and outer housing by flat key, and realization is circumferentially positioned, and support tube lower end and lower contact closely, realize axially position.It is designed inside hydroscillator based on roller and impeller of the invention without rubber structure, structure is simple, can effectively reduce the frictional resistance of horizontal well, extended reach well lower drilling tool and the borehole wall, enhances load transfer ability, while improving drilling efficiency, it can avoid the down-hole accidents such as viscous card.
Description
Technical field
The invention belongs to a kind of Novel down-hole tools of oil-gas drilling engineering field, especially have drag reduction speed-raising function
The novel hydropower oscillator of energy.
Background technique
In recent years, with the continuous development of China's industry, petroleum, the demand of natural gas and yield are also increasing.So
And in order to alleviate the shortage problem of China's oil resource, people start to the field of the environmental conditions such as deep-well, ultradeep well sternness into
Row oil exploitation.The exploitation of new oil gas well makes drilling engineering face more complicated situation, to meet stepout well condition or new oil
The needs of gas resource (such as coal bed gas, shale gas, marine oil and gas), corresponding novel drilling method are also continued to develop with tool.?
In horizontal well and extended reach well, increase with well depth is entered, the frictional force between drill string and the borehole wall, which is gradually increased, causes bit pressure to damage
It loses, is also unfavorable for the raising of rate of penetration, while can also seriously affect the target diameter and hole quality of drilling well, this is also restriction level
The key factor that well, extended reach well technology develop.In the method solved these problems, the well that mechanically works
Lower tool realizes that energy is converted using drilling fluid, and certain expected vibration is generated with this, is quickly grown in recent years.It is bored in underground
Column introduces hydroscillator, and drill string can be made to generate the periodic vibration of certain frequency and amplitude, makes quiet during being sent into
Frictional resistance becomes to move frictional resistance, frictional resistance, raising rate of penetration, the horizontal drilling depth of increase and shortening drilling during reducing feeding
It has a clear superiority in terms of period.The stratum working environment that drilling engineering faces is complicated, and drilling depth is continuously increased, and leads to drill bit
For the not high drill bit of efficiency of breaking rock when creeping into deep-well stratum, generally existing rate of penetration is very slow, drilling well cost at high cost, and drilling well
The raising of speed is crucial to be how to improve the efficiency of breaking rock of drill bit.Meanwhile live overhigh pumping pressure limits the discharge capacity of drilling well,
Influence rate of penetration and wellbore cleaning；And multiple MWD failure, PDC drill bit premature deactivation may occur and in oil-base mud
The phenomenon that with unstable performance in high temperature and high failure rate.
A kind of novel hydropower oscillator based on roller and impeller is designed in order to solve existing issue invention, utilizes drilling well
Liquid realizes energy conversion, generates axial vibration, acts on drill bit by airframe structure, realizes drilling process antifriction, increases
Drill bit available weight improves rate of penetration, reduces MWD failure and extends the purpose of drill string such as well location moves.
Summary of the invention
It is an object of the invention to: to overcome existing level well, extended reach well to creep into, frictional resistance is big, and well head bit pressure can not be effective
Pass to the deficiency of drill bit, the large rock-carrying ability of drilling fluid is not high and existing axial vibration tool using effect is undesirable asks
Topic, designs a kind of novel pulse oscillator.
To achieve the above object, the technical solution adopted by the present invention is that: the hydroscillator based on roller and impeller, by upper
Connector, throttle plate, straight pin, lock-screw, impeller shaft, impeller, impeller housing, string bearing, inner sleeve, outer sleeve, shell
Body, roller, support tube, flat key, lower contact composition, it is characterised in that top connection, outer housing, lower contact pass sequentially through screw thread
Connection；It is equipped with through-hole among throttle plate, is connect between top connection by lock-screw；Straight pin and throttle plate, on connect
It is connected between head by lock-screw, straight pin limits impeller；Impeller shaft and impeller are connected by welding and impeller housing
It connects；The upper and lower surface of impeller housing is inclined-plane, and impeller housing is rotated along roller while rotating, realizes axial movement；Leaf
String bearing is installed between hub cap and outer housing, can reduce frictional force when impeller housing movement；String bearing passes through inner sleeve
Cylinder, outer sleeve, which are realized, to be fixed, and inner sleeve, outer sleeve are stuck between string bearing and outer housing, realize positioning；Impeller shaft is multi-diameter shaft
Shape, front end are welded with nose cone, and lower end is connected by welding with impeller housing, by axial movement, realize drilling fluid flow-passing surface
Long-pending variation generates axial vibration；Support tube left end is high, and right end is low, and there are gap between impeller housing, left end is provided with keyway
It with threaded hole, is connect by flat key with outer housing, realizes circumferentially positioned, lower end closely lower contact, realize axially position；On roller
End contacts with each other with impeller housing, is connected through a screw thread and is fixed on support tube, realizes positioning.It is of the invention based on roller and leaf
It is designed inside the novel hydropower oscillator of wheel without rubber structure, structure is simple, and can effectively reduce under horizontal well, extended reach well
The frictional resistance of portion's drilling tool and the borehole wall enhances load transfer ability, while improving drilling efficiency, can avoid the undergrounds things such as viscous card
Therefore.
The present invention compared with the prior art, the beneficial effect is that: (1) only need lesser standpipe pressure can generate axis
To pulse；(2) high-frequency vibration effectively overcomes the frictional resistance of lower drilling tool, realizes effective transmitting of well head bit pressure, improves machine
Tool drilling speed, simultaneously as the vibration of tool itself, prevents drilling tool to be attached on the lower borehole wall for a long time, so as to avoid undergrounds such as viscous cards
The generation of accident.(3) it without the power assembly of similar motor, is substituted by impeller, can produce positive pulse pressure drop, can bored improving
Pump pressure is reduced while fast, is reduced the consumption to pump, is delayed the passivation of PDC drill bit；(4) novel hydropower based on roller and impeller
Oscillator can provide a frequency adjustable periodical axial impact force；(5) on MWD almost without influence.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the hydroscillator of the present invention based on roller and impeller.
In figure: 1- top connection, 2- throttle plate, 3- straight pin, 4- lock-screw, 5- impeller shaft, 6- impeller, 7- impeller housing
Body, 8- string bearing, 9- inner sleeve, 10- outer sleeve, 11- outer housing, 12- roller, 13- support tube, 14- flat key, 15- lower contact.
Fig. 2 is flat key type impeller schematic three dimensional views of the present invention.
Fig. 3 is spline impeller schematic three dimensional views of the present invention.
Fig. 4 is the sectional view of throttle plate of the present invention.
In figure: 2- throttle plate, 4- lock-screw.
Fig. 5 is impeller housing schematic three dimensional views of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings: with reference to the accompanying drawings shown in 1, the water based on roller and impeller
Forced oscillation device, by top connection 1, throttle plate 2, straight pin 3, lock-screw 4, impeller shaft 5, impeller 6, impeller housing 7, string bearing
8, inner sleeve 9, outer sleeve 10, outer housing 11, roller 12, support tube 13, flat key 14, lower contact 15 form, it is characterised in that on
Connector 1, outer housing 11, lower contact 15 pass sequentially through screw thread connection；Among throttle plate 2 be equipped with through-hole, with top connection 1 it
Between connected by lock-screw 4；It is connected between straight pin 3 and throttle plate 2, top connection 1 by lock-screw 4, straight pin 3 is right
Impeller 6 is limited；Impeller shaft 5 and impeller 6 are connect by welding with impeller housing 7；The upper and lower surface of impeller housing 7 is oblique
Face, impeller housing 7 are rotated along roller 12 while rotating, realize axial movement；It is installed between impeller housing 7 and outer housing 11
There is string bearing 8, go here and there and be gap-matched between bearing 8 and impeller housing 7, can reduce frictional force when impeller housing 7 moves；
Go here and there bearing 8 by inner sleeve 9, outer sleeve 10 realize fix, inner sleeve 9, outer sleeve 10 be stuck in string bearing 8 and outer housing 11 it
Between, realize positioning；Impeller shaft 5 is ladder shaft-like, and front end is welded with nose cone, and lower end is connected by welding with impeller housing 7, is led to
Axial movement is crossed, realizes the variation of drilling fluid area of passage, generates axial vibration；13 left end of support tube is high, and right end is low, with impeller
There are gap between shell 7, left end is provided with keyway and threaded hole, is connect by flat key 14 with outer housing 11, and realization is circumferentially positioned,
Axially position is realized in lower end closely lower contact 15；12 upper end of roller contacts with each other with impeller housing 7, is connected through a screw thread fixation
In on support tube 13, positioning is realized.
In the course of work, the hydroscillator lower part based on roller and impeller, which connects threaded rod power drill set and is used cooperatively, passes through production
Raw axial vibration acts on lower drilling tool or continuous oil pipe tool string, substantially reduces frictional resistance and improves the brill being transmitted on drill bit
Pressure, realizes the drilling and grinding operation of long horizontal sections.The drilling fluid flowed out from drilling rod directly flows into inside hydroscillator from top connection 1,
The drilling fluid flowed through from top connection 1 directly impacts impeller 6, so that impeller 6 is generated rotary motion, and supervene certain axial direction
Power.After drilling fluid impacts impeller 6,6 impeller axis 5 of impeller and impeller housing 7 rotate together.13 left end of support tube
Height, right end is low, and left end is provided with keyway and threaded hole, and realization is circumferentially positioned, is connect by flat key 14 with outer housing 11 at keyway, spiral shell
Roller 12 is fixed at pit, 13 lower end of support tube and lower contact 15 closely, realize axially position.Impeller shaft 5, impeller 6 and leaf
Hub cap 7 rotates under the impact of drilling fluid, generates waterpower pulse, impeller housing 7 is while rotating along roller 12
Rotation, is pushed ahead along drilling tool wellbore, realizes axial movement, while the axial movement of impeller shaft 5 changes impeller shaft 5 and throttling
The variation of the area of passage of drilling fluid between valve plate 2, area of passage will generate the variation of waterpower pulse, to generate axial vibration
It is dynamic.The axial vibration of generation is significantly reduced resistance common in horizontal segment construction, and internal tool pressure is made to generate periodic wave
Dynamic, to make to generate a cycle vibration based on the hydroscillator of roller and impeller, the large rock-carrying ability for improving drilling fluid is aobvious
It writes and improves rate of penetration.It is designed inside hydroscillator based on roller and impeller without rubber structure, greatly strengthens the underground
The stability that tool works in high temperature, oil-base mud and contaminated liquid phase environment.
Claims (8)
1. the hydroscillator based on roller and impeller, by top connection, throttle plate, lock-screw, straight pin, impeller, impeller
Axis, impeller housing, roller, support tube, flat key, outer housing, lower contact composition, it is characterised in that top connection (1), outer housing
(11), lower contact (15) passes sequentially through screw thread connection；It is equipped between through-hole, with top connection (1) and leads among throttle plate (2)
Cross lock-screw (4) connection；It is connect between straight pin (3) and throttle plate (2), top connection (1) by lock-screw (4), circle
Pin (3) limits impeller (6)；Impeller shaft (5) and impeller (6) are connect by welding with impeller housing (7)；Impeller housing
(7) end surfaces up and down are inclined-plane, and string bearing (8) is equipped between impeller housing (7) and outer housing (11), are gone here and there bearing (8)
Positioning is realized by inner sleeve (9) and outer sleeve (10)；Impeller housing (7) is rotated along roller (12) while rotating, is realized
Axial movement；Impeller shaft (5) is ladder shaft-like, and front end is welded with nose cone, and lower end is connected by welding with impeller housing (7),
The axial movement of impeller shaft (5) will change the variation of throttle plate (2) intermediate throughholes drilling fluid area of passage, and so on, just
A cycle fluctuation can be generated, realizes that energy is converted using drilling fluid, generates axial vibration；Support tube (13) left end is high, right
Hold low, there are gap between impeller housing (7), left end is provided with keyway and threaded hole, passes through flat key (14) and outer housing (11)
Connection, realizes circumferentially positioned, and axially position is realized in lower end closely lower contact (15)；Roller (12) upper end and impeller housing (7) phase
Mutually contact, is connected through a screw thread and is fixed on support tube (13), realizes positioning.
2. impeller housing according to claim 1, it is characterised in that: the upper and lower surface of the impeller housing (7) is
Inclined-plane can rotate while rotating along roller (12), realize axial movement.
3. impeller shaft according to claim 1, it is characterised in that: described impeller shaft (5) front end is welded with nose cone, leads to
The variation of drilling fluid area of passage can be realized with throttle plate (2) by crossing axial movement, generate axial pulse.
4. roller according to claim 1, it is characterised in that: roller (12) upper end connects with impeller housing (7)
Touching reduces with impeller housing (7) contact area, reduces frictional force when impeller housing (7) rotation, and is connected through a screw thread fixation
In on support tube (13).
5. throttle plate according to claim 1, it is characterised in that: the throttle plate (2) passes through lock-screw (4)
It is connect with top connection (1), straight pin (3)；Its axial direction is uniformly distributed 6 lock-screws.
6. the connection type of impeller according to claim 1, impeller shaft and impeller housing, it is characterised in that: the leaf
Wheel (6), impeller shaft (5) and the connection type of impeller housing (7) are joined together by welding.
7. straight pin according to claim 1, it is characterised in that: the straight pin (3) and top connection (1) passes through locking
Screw (4) connection limits impeller (6).
8. string bearing according to claim 1, it is characterised in that: the string bearing (8) be mounted on impeller housing (7) with
It between outer housing (11), is gap-matched, can reduce when impeller housing (7) rotates between impeller housing (7)
Frictional force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015320.7A CN109611028B (en) | 2019-01-08 | 2019-01-08 | Hydraulic oscillator based on roller and impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015320.7A CN109611028B (en) | 2019-01-08 | 2019-01-08 | Hydraulic oscillator based on roller and impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611028A true CN109611028A (en) | 2019-04-12 |
| CN109611028B CN109611028B (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910015320.7A Active CN109611028B (en) | 2019-01-08 | 2019-01-08 | Hydraulic oscillator based on roller and impeller |
Country Status (1)
| Country | Link |
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| CN (1) | CN109611028B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635676A (en) * | 2022-03-08 | 2022-06-17 | 山东科技大学 | Intermittent pressurizing water injection hole inner rotor device and method for low-permeability difficult-to-wet coal seam |
| CN116201482A (en) * | 2023-02-27 | 2023-06-02 | 湖北龙脉宜和石油科技有限公司 | Screw type underground hydraulic oscillator |
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|---|---|---|---|---|
| CN103306600A (en) * | 2013-06-27 | 2013-09-18 | 深圳市百勤石油技术有限公司 | Cam-type axial rotary punching tool |
| CN205172416U (en) * | 2015-10-30 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Mechanical oscillation strikes transmission shaft |
| CN206581892U (en) * | 2014-01-27 | 2017-10-24 | Sjm设计有限公司 | Fluid pulse equipment |
| CN107420061A (en) * | 2017-09-29 | 2017-12-01 | 西南石油大学 | Underbalance pulse oscillator |
| CN107664013A (en) * | 2017-11-07 | 2018-02-06 | 西南石油大学 | Vane type axial and circumferential composite impact device |
-
2019
- 2019-01-08 CN CN201910015320.7A patent/CN109611028B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306600A (en) * | 2013-06-27 | 2013-09-18 | 深圳市百勤石油技术有限公司 | Cam-type axial rotary punching tool |
| CN206581892U (en) * | 2014-01-27 | 2017-10-24 | Sjm设计有限公司 | Fluid pulse equipment |
| CN205172416U (en) * | 2015-10-30 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Mechanical oscillation strikes transmission shaft |
| CN107420061A (en) * | 2017-09-29 | 2017-12-01 | 西南石油大学 | Underbalance pulse oscillator |
| CN107664013A (en) * | 2017-11-07 | 2018-02-06 | 西南石油大学 | Vane type axial and circumferential composite impact device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635676A (en) * | 2022-03-08 | 2022-06-17 | 山东科技大学 | Intermittent pressurizing water injection hole inner rotor device and method for low-permeability difficult-to-wet coal seam |
| CN114635676B (en) * | 2022-03-08 | 2023-11-07 | 山东科技大学 | Intermittent pressurized water injection hole inner rotor device and method for low-permeability difficult-to-wet coal seam |
| CN116201482A (en) * | 2023-02-27 | 2023-06-02 | 湖北龙脉宜和石油科技有限公司 | Screw type underground hydraulic oscillator |
| CN116201482B (en) * | 2023-02-27 | 2024-03-12 | 湖北龙脉宜和石油科技有限公司 | Screw type underground hydraulic oscillator |
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| Publication number | Publication date |
|---|---|
| CN109611028B (en) | 2020-09-18 |
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