CN203403819U - Hydraulic oscillator - Google Patents
Hydraulic oscillator Download PDFInfo
- Publication number
- CN203403819U CN203403819U CN201320431211.1U CN201320431211U CN203403819U CN 203403819 U CN203403819 U CN 203403819U CN 201320431211 U CN201320431211 U CN 201320431211U CN 203403819 U CN203403819 U CN 203403819U
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- drive shaft
- valve plate
- universal drive
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- rotor
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Abstract
The utility model relates to the field of the oil production technology and provides a hydraulic oscillator which is used for easily and effectively exerting pressure on a drill and improving well drilling efficiency. The hydraulic oscillator comprises an upper connector, a stator, an outer shell and a lower connector, wherein the upper connector, the stator, the outer shell and the lower connector are connected in a sealed mode in sequence. A rotor is arranged in the stator in an eccentric mode. The lower end of the rotor is connected with a universal shaft upper connector, a universal shaft and a universal shaft transmission rod in sequence. The lower end of the universal shaft transmission rod is connected with the outer shell in a sealed mode. The lower end of the outer shell is connected with the lower connector in a threaded and sealed mode. The lower end of the universal shaft transmission rod is provided with a vibration valve in a matched and sleeved mode. The vibration valve slides along a matching surface in a reciprocating mode relative to the universal shaft transmission rod. The lower end of the vibration valve is provided with a movable valve plate in a sealed and sleeved mode, and the movable valve plate and the vibration valve act synchronously. The upper end of the lower connector is correspondingly provided with a fixed valve plate which is closely attached to the movable valve plate. The movable valve plate and the fixed valve plate are respectively provided with a passage in the shape of a sector larger than a semi-circle. An annular space allowing liquid flow to pass through easily is formed between the rotor, the universal shaft upper connector and the universal shaft and the stator and the outer shell. The universal shaft transmission rod is provided with a passage communicated with the annular space. The passage is communicated with a vibration valve cavity and the fan-shaped passage.
Description
Technical field
The utility model relates to technical field of petroleum extraction, and particularly a kind of drill bit the pressure of the drill that effectively increases in the complex structural wells such as high angle hole, horizontal well are exploited is to improve the hydroscillator of drilling speed and production efficiency.
Background technology
Along with the quantity increase of the complex structural wells such as China each elephant exploitation high angle hole, horizontal well and horizontal branch well, how effectively to drill bit, to apply the pressure of the drill becomes people's question of common concern.Drilling well at present is mainly crept into two kinds by compound drilling and the slip of well dynamic instrument and is crept into mode.Because these labyrinths increase along journey hydraulic loss, shaft bottom drill bit available water horsepower is quite low, is all generally to drill bit, to apply the pressure of the drill fractured rock by drill string own wt.Yet in the wellbore construction of high angle hole, extended reach well and horizontal well, these traditional pressuring methods are subject to certain restrictions, and the subject matter of its existence is:
1,, because hole deviation is larger, drill string own wt is little or be approximately zero at the component of well direction, is difficult to meet the pressure of the drill of design in advance;
2, in horizontal well, because drill string own wt is large to the normal pressure of the borehole wall, increase the frictional resistance of drilling tool on the borehole wall, thereby restricted on drill bit, applied effective the pressure of the drill;
3,, for horizontal well, because the horizontal segment of construction is more and more longer, yet in the large well section work progress of hole deviation, tend to occur the phenomenons such as backing pressure, sticky card;
4, for compound drilling, especially in well dynamic instrument slip drilling process, cannot guarantee to drill bit apply truly, effective the pressure of the drill, have a strong impact on full well average rate of penetration and drilling period.
Summary of the invention
The problems referred to above that the utility model exists for prior art, provide a kind of being convenient to effectively to exert pressure, improve drilling efficiency to drill bit, and effectively prevent the hydroscillator of bouncing of drilling tool in drilling process or backing pressure, so that improve the drilling efficiency of the complex structural wells such as high angle hole and horizontal well.
The purpose of this utility model is to realize like this, a kind of hydroscillator, comprise the top connection being tightly connected successively, stator, shell and lower contact, in described stator, bias is provided with rotor, in the shell of described rotor lower end, be connected with universal drive shaft top connection in turn, universal drive shaft and universal drive shaft drive link, described universal drive shaft drive link lower end periphery is connected by plain bearing element slipper seal with shell, described shell lower end inwall is connected with lower contact thread seal, described universal drive shaft drive link lower end engage sleeves is equipped with vibrating valve, the relative universal drive shaft drive link of described vibrating valve can reciprocatingly slide along fitting face, described vibrating valve lower end sealing shroud is equipped with and the moving valve plate of vibrating valve synchronization action, lower contact upper end correspondence is provided with and moves the valve plate of determining that valve plate is close to, described moving valve plate and determine to be respectively equipped with on valve plate the sector channel that is greater than semicircle, described rotor, between universal drive shaft top connection and universal drive shaft and stator and shell, be provided with and be convenient to the annular space that liquid stream passes through, described universal drive shaft drive link is provided with the passage being communicated with annular space, described passage is communicated with vibration valve pocket and sector channel.
Hydroscillator of the present utility model, in use, top is connected with drilling rod by top connection, bottom is connected with drill string and drill bit by lower contact, in work, high pressure liquid drives rotor rotation in drilling rod, simultaneously around the revolution of the center of stator, form eccentric composite rotation hydraulic power is passed to vibrating valve by universal drive shaft top connection, universal drive shaft and universal drive shaft drive link successively, and, plain bearing element changes the eccentric composite rotation on top into the concentric rotation of bottom, and vibrating valve drives moving valve plate to be close to determine valve plate and rotates.In moving valve plate cycle rotation process, moving valve plate with the overlapping area of sector channel of determining valve plate from greatly to little, cyclically-varying from small to large again, makes the also cyclically-varying of circulation area of high pressure liquid stream, thereby the flow stream pressure on vibrating valve top is periodically changed.When moving valve plate and the sector channel overlapping area of determining valve plate hour, the high pressure liquid stream on top is minimum by the actual internal area of vibrating valve, upper flow pressure is increased to maximum, greatly flow stream pressure is by vibrating valve and great thrust of the given valve plate of moving valve plate, and vertically top rod elongated and produced downward elastic deformation downwards and promote drilling tool and the drill bit below moving valve plate; When moving valve plate and the sector channel overlapping area of determining valve plate are maximum, the high pressure liquid stream on top is maximum by the circulation area after vibrating valve, flow stream pressure is down to minimum, making to determine thrust downward on valve plate dwindles greatly, the elasticity of top rod is recovered, and moved up vertically also to drag on the drill string of determining valve plate bottom and move simultaneously.This periodic, high-frequency shift reciprocately, will produce vibration to drilling tool, because being changes in the cycle producing under fluid power effect, therefore forms hydraulic oscillation effect, to the pressurization of down-hole equipment cycle, realizes underground high-efficient and creeps into.
Therefore hydroscillator structure of the present utility model has following beneficial effect:
1, by hydroscillator, can make top high pressure liquid stream to the drilling rod of bottom and the pressurization of drill bit cycle and oscillation action, realize truly, effectively applying the pressure of the drill, and avoid the problem that causes false add to press because of partical gravity, buoyancy and frictional force impact in the pressurization of horizontal well and high angle hole;
2, because hydroscillator makes the rubbing that connects into of upper and lower drilling rod and drill string, connect, can effectively alleviate the horizontal and vertical vibration that drilling tool produces, reduce the application life of fatigue failure, prolongation drilling tool and the drill bit of drilling tool, and avoid producing bouncing of drilling tool phenomenon;
3, under the periodic swinging effect of vibrating valve in drilling process, make its upper and lower drilling tool produce longitudinally and move back and forth in well, make drilling tool become dynamic friction in the static friction of down-hole, greatly reduce frictional resistance, can effectively reduce the backing pressure phenomenon producing because of well track, guarantee effective the pressure of the drill;
4, because hydroscillator makes drill bit or lower drilling tool, become and flexibly connect with being connected of drill string, in drilling process, realizing flexible pressurizing creeps into can effectively prevent from occurring bouncing of drilling tool phenomenon when boulder bed creeps into, improve rate of penetration, drill bit and drill tool life and drilling quality, absorb to greatest extent drillstring vibrations and drill bit impact power, extended the application life of drill bit and drilling tool.
For ease of realizing the concentric rotation that the eccentric composite rotation on top is transferred to bottom, described plain bearing element comprise with the slip blind axle of the fixing suit of outer casing inner wall and be fixedly set in universal drive shaft drive link lower, outer perimeter and with the slip dynamic bearing of slip blind axle sliding connection, described slip blind axle inwall is fixed with the wear-resistant sleeve coordinating with the dynamic bearing that slides, and described slip blind axle and shell are connected and between face, are provided with sealing ring.
For ease of realizing the eccentric compound motion of rotor, described rotor periphery is screw shaped, the waveform that the shaft section of described stator inner wall is centrosymmetric, described rotor relative stator eccentric setting and when rotor rotation and when stator center revolves round the sun and the waveform inwall of stator non-interference, described rotor lower end is connected with universal drive shaft top connection upper end thread seal.
For ease of reducing the resistance of the partially sub-compound motion of rotor, between described universal drive shaft and universal drive shaft top connection and universal drive shaft drive link, by universal joint, be connected respectively.
For ease of realizing the power transmission of vibrating valve and Universal transmission rod, described vibrating valve upper end extends upwardly in universal drive shaft drive link and by the guiding wear ring the being equipped with connection that reciprocatingly slides, described vibrating valve lower, outer perimeter is connected by the spline drived being equipped with universal drive shaft drive link bottom.
Accompanying drawing explanation
The structural representation of Fig. 1 hydroscillator of the present utility model.
Fig. 2 is the enlarged drawing of I section in Fig. 1.
Fig. 3 is the structural representation of universal drive shaft drive link.
Fig. 4 is that A-A of Fig. 3 is to sectional drawing.
The structural representation of Fig. 5 vibrating valve.
Fig. 6 is B-B sectional drawing of Fig. 5.
Fig. 7 is C-C sectional drawing of Fig. 5.
Fig. 8 is the structural representation of lower contact.
Fig. 9 is the D-D sectional drawing of Fig. 8.
Figure 10 is moving valve plate and the sector channel overlapping area of determining valve plate schematic diagram hour.
Figure 11 is the E-E sectional drawing of Figure 10.
Schematic diagram when Figure 12 is moving valve plate and the sector channel overlapping area maximum of determining valve plate.
Wherein, 1 top connection; 2 stators; 3 rotors; 4 universal drive shaft top connections; 5 shells; 6 universal drive shafts; 7 universal drive shaft drive links; 8 slip blind axles; 8a wear-resistant sleeve; 9 slip dynamic bearings; 10 vibrating valves; 11 moving valve plates; 12 determine valve plate; 13 lower contacts; 14 sealing rings; 15 guiding wear rings.
The specific embodiment
If Fig. 1-Figure 12 is hydroscillator of the present utility model, comprise the top connection 1 being tightly connected successively, stator 2, shell 5 and lower contact 13, the interior bias of stator 2 is provided with rotor 3, in the shell 5 of rotor 3 lower ends, be connected with universal drive shaft top connection 3 in turn, universal drive shaft 6 and universal drive shaft drive link 7, universal drive shaft drive link 7 lower end peripheries are connected by plain bearing element slipper seal with shell 5, shell 5 lower end inwalls are connected with lower contact 13 thread seals, universal drive shaft drive link 7 lower end engage sleeves are equipped with vibrating valve 10, the relative universal drive shaft drive link 7 of vibrating valve 10 can reciprocatingly slide along fitting face, vibrating valve 10 lower end sealing shrouds are equipped with and the moving valve plate 11 of vibrating valve 10 synchronization actions, lower contact 13 upper end correspondences be provided with move that valve plate 11 is close to determine valve plate 12, moving valve plate 11 and determine to be respectively equipped with on valve plate 12 sector channel that is greater than semicircle, rotor 3, between universal drive shaft top connection 4 and universal drive shaft 6 and stator 2 and shell 5, be provided with and be convenient to the annular space that liquid stream passes through, universal drive shaft drive link 7 is provided with the passage being communicated with annular space, passage is communicated with vibration valve pocket and sector channel, for ease of realize the concentric rotation plain bearing element of lower member comprise with the slip blind axle 8 of the fixing suit of shell 5 inwalls and be fixedly set in universal drive shaft drive link 7 lower, outer perimeter and with the slip dynamic bearing 9 of slip blind axle 8 sliding connections, slip blind axle 8 inwalls are fixed with the wear-resistant sleeve 8a coordinating with the dynamic bearing 9 that slides, and slip blind axle 8 and shell 5 are connected and between face, are provided with sealing ring 14, for being partial to the eccentric compound motion of rotor 3, rotor 3 peripheries are screw shaped, the waveform that the shaft section of stator 2 inwalls is centrosymmetric, rotor 3 relative stator 2 eccentric settings and when rotor rotation and non-interference around the waveform inwall of 2 centers whens revolution of stator and stator 2, rotor 3 lower ends are connected with universal drive shaft top connection 4 upper end thread seals, universal drive shaft 6 is connected by universal joint respectively with 7 of universal drive shaft top connection 4 and universal drive shaft drive links, vibrating valve 10 upper ends extend upwardly in universal drive shaft drive link 7 and by the guiding wear ring 15 the being equipped with connection that reciprocatingly slides, vibrating valve 10 lower, outer perimeter are connected by the spline drived being equipped with universal drive shaft drive link 7 bottoms.
Hydroscillator of the present utility model, in use, top is connected with drilling rod by top connection 1, bottom is connected with drill string and drill bit by lower contact 13, in work, high pressure liquid drives rotor 3 rotations in drilling rod, simultaneously around the revolution of the center of stator 2, form eccentric composite rotation hydraulic power is passed to vibrating valve 10 by universal drive shaft top connection 4, universal drive shaft 6 and universal drive shaft drive link 7 successively, and, plain bearing element changes the eccentric composite rotation on top into the concentric rotation of bottom, and vibrating valve 10 drives moving valve plate 11 to be close to determine valve plate 12 and rotates.In moving 11 cycle of valve plate rotation process, moving valve plate 11 with the overlapping area of sector channel of determining valve plate 12 from greatly to little, cyclically-varying from small to large again, makes the also cyclically-varying of circulation area of high pressure liquid stream, thereby the flow stream pressure on vibrating valve 10 tops is periodically changed.When moving valve plate 11 and the sector channel overlapping area of determining valve plate 12 hour, the high pressure liquid stream on top is minimum by the actual internal area of vibrating valve 10, upper flow pressure is increased to maximum, greatly flow stream pressure is by vibrating valve 10 and 12 1 great thrusts of the given valve plate of moving valve plate 11, and vertically top rod elongated and produced downward elastic deformation downwards and promote drilling tool and the drill bit of moving valve plate below 11; When moving valve plate 11 and the sector channel overlapping area of determining valve plate 12 are maximum, the high pressure liquid stream on top is maximum by the circulation area after vibrating valve 10, flow stream pressure is down to minimum, making to determine thrust downward on valve plate 12 dwindles greatly, the elasticity of top rod is recovered, and moved up vertically also to drag on the drill string of determining valve plate 11 bottoms and move simultaneously.This periodic, high-frequency shift reciprocately, forms hydraulic oscillation effect, to the pressurization of down-hole equipment cycle, realizes underground high-efficient and creeps into.
The utility model is not limited to above-described embodiment; every on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the scope of the utility model protection.
Claims (5)
1. a hydroscillator, comprise the top connection being tightly connected successively, stator, shell and lower contact, it is characterized in that, in described stator, bias is provided with rotor, in the shell of described rotor lower end, be connected with universal drive shaft top connection in turn, universal drive shaft and universal drive shaft drive link, described universal drive shaft drive link lower end periphery is connected by plain bearing element slipper seal with shell, described shell lower end inwall is connected with lower contact thread seal, described universal drive shaft drive link lower end engage sleeves is equipped with vibrating valve, the relative universal drive shaft drive link of described vibrating valve can reciprocatingly slide along fitting face, described vibrating valve lower end sealing shroud is equipped with and the moving valve plate of vibrating valve synchronization action, lower contact upper end correspondence is provided with and moves the valve plate of determining that valve plate is close to, described moving valve plate and determine to be respectively equipped with on valve plate the sector channel that is greater than semicircle, described rotor, between universal drive shaft top connection and universal drive shaft and stator and shell, be provided with and be convenient to the annular space that liquid stream passes through, described universal drive shaft drive link is provided with the passage being communicated with annular space, described passage is communicated with vibration valve pocket and sector channel.
2. hydroscillator according to claim 1, it is characterized in that, described plain bearing element comprise with the slip blind axle of the fixing suit of outer casing inner wall and be fixedly set in universal drive shaft drive link lower, outer perimeter and with the slip dynamic bearing of slip blind axle sliding connection, described slip blind axle inwall is fixed with the wear-resistant sleeve coordinating with the dynamic bearing that slides, and described slip blind axle and shell are connected and between face, are provided with sealing ring.
3. hydroscillator according to claim 1, it is characterized in that, described rotor periphery is screw shaped, the waveform that the shaft section of described stator inner wall is centrosymmetric, described rotor relative stator eccentric setting and when rotor rotation and when stator center revolves round the sun and the waveform inwall of stator non-interference, described rotor lower end is connected with universal drive shaft top connection upper end thread seal.
4. hydroscillator according to claim 1, is characterized in that, between described universal drive shaft and universal drive shaft top connection and universal drive shaft drive link, is connected respectively by universal joint.
5. hydroscillator according to claim 1, it is characterized in that, described vibrating valve upper end extends upwardly in universal drive shaft drive link and by the guiding wear ring the being equipped with connection that reciprocatingly slides, described vibrating valve lower, outer perimeter is connected by the spline drived being equipped with universal drive shaft drive link bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431211.1U CN203403819U (en) | 2013-07-19 | 2013-07-19 | Hydraulic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431211.1U CN203403819U (en) | 2013-07-19 | 2013-07-19 | Hydraulic oscillator |
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| Publication Number | Publication Date |
|---|---|
| CN203403819U true CN203403819U (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320431211.1U Withdrawn - After Issue CN203403819U (en) | 2013-07-19 | 2013-07-19 | Hydraulic oscillator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410444A (en) * | 2013-07-19 | 2013-11-27 | 扬州天业石油机械有限公司 | Waterpower oscillator |
| CN108179990A (en) * | 2017-12-08 | 2018-06-19 | 中国石油集团长城钻探工程有限公司 | A kind of Drilling vibration tool and its application method |
| CN108868615A (en) * | 2018-07-06 | 2018-11-23 | 河南易发石油工程技术有限公司 | A kind of hydroscillator pulse generating device |
| CN109236188A (en) * | 2018-09-28 | 2019-01-18 | 中石化石油机械股份有限公司 | Hydroscillator |
| CN110374508A (en) * | 2019-08-21 | 2019-10-25 | 石擎天 | A kind of underbalance pulse oscillation tool |
| CN115628025A (en) * | 2022-12-21 | 2023-01-20 | 中国石油集团川庆钻探工程有限公司 | Downhole tractor and coiled tubing tool |
-
2013
- 2013-07-19 CN CN201320431211.1U patent/CN203403819U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410444A (en) * | 2013-07-19 | 2013-11-27 | 扬州天业石油机械有限公司 | Waterpower oscillator |
| CN103410444B (en) * | 2013-07-19 | 2015-06-17 | 扬州天业石油机械有限公司 | Waterpower oscillator |
| CN108179990A (en) * | 2017-12-08 | 2018-06-19 | 中国石油集团长城钻探工程有限公司 | A kind of Drilling vibration tool and its application method |
| CN108868615A (en) * | 2018-07-06 | 2018-11-23 | 河南易发石油工程技术有限公司 | A kind of hydroscillator pulse generating device |
| CN108868615B (en) * | 2018-07-06 | 2020-01-14 | 河南易发石油工程技术有限公司 | Hydraulic oscillator pulse pressure generating device |
| CN109236188A (en) * | 2018-09-28 | 2019-01-18 | 中石化石油机械股份有限公司 | Hydroscillator |
| CN110374508A (en) * | 2019-08-21 | 2019-10-25 | 石擎天 | A kind of underbalance pulse oscillation tool |
| CN115628025A (en) * | 2022-12-21 | 2023-01-20 | 中国石油集团川庆钻探工程有限公司 | Downhole tractor and coiled tubing tool |
| CN115628025B (en) * | 2022-12-21 | 2023-08-18 | 中国石油集团川庆钻探工程有限公司 | Downhole tractor and coiled tubing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140122 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |