CN202596580U - Novel pulse generator device - Google Patents
Novel pulse generator device Download PDFInfo
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- CN202596580U CN202596580U CN2012202716582U CN201220271658U CN202596580U CN 202596580 U CN202596580 U CN 202596580U CN 2012202716582 U CN2012202716582 U CN 2012202716582U CN 201220271658 U CN201220271658 U CN 201220271658U CN 202596580 U CN202596580 U CN 202596580U
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- impeller
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- baffle
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- circlip
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Abstract
The utility model provides a simple structure, have higher pulse amplitude and range, longe-lived, specially adapted geological drilling and oil gas exploration deep well, the pulse generator device of super deep well drilling operation comprise reducer union, circlip, baffle, body, impeller assembly and self-excited oscillation nozzle. The structure is characterized in that the flow guiding body is provided with a flange positioning hole, a thread fabrication hole and a slope flow channel; the shaft sleeve is locked by the locking screw; two ends of the impeller shaft are provided with elastic retainer rings; the self-oscillation nozzle is provided with a spiral guide flow passage and a diffusion angle. The pulse generator is arranged between a drill bit and a drill collar or an underground power drilling tool, modulates conventional continuous flow entering the drill bit into pulse cavitation rotating double jet, generates hydraulic pulse, cavitation erosion, local negative pressure and rotating double jet effect at the bottom of a well, effectively improves the flow field at the bottom of the well, reduces the pressure holding effect, improves the purification at the bottom of the well, assists in rock breaking and cleaning, fully exerts the mechanical and hydraulic energy effects, improves the mechanical drilling speed and reduces the drilling cost.
Description
Technical field
The utility model relates to a kind of novel pulser unit, is specially adapted to geological drilling and oil-gas exploration deep-well, ultradeep well drillng operation.
Background technology
China's geological prospecting at present and oil-gas exploration and development are constantly to the deep formation development, and the quantity of deep-well ultradeep well probing increases year by year, runs into complex situations in the drilling process and increases.Along with the increase of the degree of depth, shaft bottom confined pressure and formation rock intensity increase, and drillability is poor; Be difficult for fragmentation, the aggravation of shaft bottom cuttings hold-down effect, hydraulic energy significantly successively decreases in addition; Under the constant condition of ground pump power, shaft bottom drill bit available water horsepower sharply descends, and broken rock mechanical energy is not enough; Hydraulic drilling, clear rock ability also weaken thereupon, can not in time remove and repeat fragmentation owing to landwaste under many circumstances, even cause bit balling; Cause creeping into that rate of penetration is low, the cycle is long, cost is high, directly have influence on development rate and cost.
Hydraulic pulse generator is that a kind of conventional continuous-flow that will get into drill bit is modulated into the waterpower pulse jet, changes the pressure condition of bottom-hole flow field, and then improves the downhole drill instrument of rate of penetration.Existing hydraulic pulse generator mainly contains three kinds at present, and first kind of down-hole fluid power propeller relies on the instrument piston to produce the pressure of the drill, and the waterpower pulse effect is bad; Second kind of waterpower pulse circulating valve underbalance pulse is effective, but complex structure, and the solid phase particles that contains in the drilling fluid is prone to the modulator inner body is caused wearing and tearing; Problems such as the waterpower pulse that the third pulsing jet drilling rig modulation generates has pulse amplitude and amplitude is on the low side, life tools are short; And these impulse generators only are applicable to the oil exploration drilling operation, and small-bore geological drilling area research and application still belong to blank.Because deep-well, ultradeep well geological condition complicacy; Work under comprehensive drilling condition such as high temperature, high pressure, rotation, impact; The tension of paired pulses generator, resistance to compression, antitorque, impact resistance all have very high requirement, and this just requires impulse generator to have high pressure oscillation, better comprehensive performance and long application life, therefore is necessary to study a kind of novel pulser unit; Improve rate of penetration, reduce drilling cost.
Summary of the invention
It is a kind of simple in structure that the utility model provides, and has higher waterpower pulse amplitude and amplitude, and long service life is specially adapted to the pulser unit of geological drilling and oil-gas exploration deep-well, ultradeep well drillng operation.This impulse generator is installed between drill bit and drill collar or the mud motor, and the conventional continuous-flow that gets into drill bit is modulated into pulse cavitation Rotating Double jet, produces waterpower pulse, cavitation erosion, local decompression, Rotating Double jet effect in the shaft bottom; Effectively improve bottom-hole flow field; Reduce chip hold down effect, improve bottom hole flushing and auxiliary rock, large rock-clearing effect, give full play to machinery and hydraulic energy effect; Improve rate of penetration, reduce drilling cost.
This novel pulser unit is made up of reducer union, circlip, baffle, body, impeller assembly, self-oscillation nozzle.Said reducer union and said body are the hollow tubular body that two ends are processed with screw buckle; Said reducer union one end is connected with drill collar or mud motor; The last female joint of said body and the said reducer union other end are connected to the drilling fluid arrival end; The following female joint and the drill bit of body are connected to the drilling fluid port of export; Between the said body drilling fluid arrival end and the said body drilling fluid port of export, constitute containing cavity, be provided with circlip, baffle, impeller assembly and self-oscillation nozzle in it successively; Said circlip is positioned at the draw-in groove of said body, prevents said baffle axial float; Said baffle has the slope runner; Said impeller assembly is made up of impeller, impeller base, impeller shaft, axle sleeve, circlip and lock-screw; Axle sleeve is connected through screw buckle with impeller base; The lock-screw locking axle sleeve prevents the stuck impeller of axle sleeve axial float, and impeller is installed on the impeller shaft; Be installed on the impeller base through axle sleeve, impeller shaft two ends circlip prevents the stuck impeller of impeller shaft axial float; Said body containing cavity bottom is provided with the concave plane, constitutes the location end face; Said self-oscillation nozzle is positioned on the location end face of said body, and the bottom has spirally-guided runner and angle of flare.
Preferably, said reducer union lower end is connected with said body upper end, is convenient to install said body containing cavity inner body.
Preferably, said body containing cavity bottom is provided with the concave plane, constitutes the location end face.
Preferably, said baffle entrance section is processed with the screw thread fabrication hole, is convenient to install, dismantles and changes component; Said baffle and said impeller base cooperation place are provided with locating flange, are convenient to the said impeller of installing and locating; Place, said baffle outlet is provided with the processing shoulder, strengthens wear-resisting erosion resistance ability; Said baffle has ramped aisle, and entrance section is greater than the outlet.
Preferably, said impeller base side has two to connect screwed hole, and the axis of said perforation screwed hole and said containing cavity is perpendicular; Said impeller base arrival end has two screwed holes, passes through mutually with said perforation screwed hole, is used to install lock-screw, prevents the stuck impeller of said axle sleeve axial float.
Preferably, said impeller shaft rotates around said axle sleeve, and circlip is equipped with at said impeller shaft two ends, prevents the stuck impeller of said impeller shaft axial float.
Preferably, said axle sleeve is processed with screw thread outward, connects with the perforation screwed hole of said impeller base through screw buckle; Said axle sleeve one end has through groove, is convenient to installing/dismounting.
Preferably, said self-oscillation nozzle is a multistage cross section circular flow channel, and the bottom has spirally-guided runner and angle of flare.
The beneficial effect of the utility model is a kind of novel pulser unit, is specially adapted to geological drilling and oil-gas exploration deep-well, ultradeep well drillng operation.Baffle has the slope runner, changes the flow direction and the speed of drilling fluid, impeller blade is produced tangential force impel continuously rotation at a high speed of impeller.Under the effect of drilling fluid to the impeller blade impact force, impeller rotates at a high speed and continuously changes flow area, produces powerful pulse.The baffle entrance section is processed with the screw thread fabrication hole, is convenient to installation, dismounting and renewal part; The baffle outlet is provided with the processing shoulder, strengthens wear-resisting erosion resistance ability, increases the service life.Be provided with lock-screw at the impeller base entrance section and prevent the axle sleeve axial float; The impeller shaft two ends have circlip, prevent the stuck impeller of impeller shaft axial float, prolong impeller and impeller shaft application life.The self-oscillation nozzle is a multistage cross section circular flow channel, and the bottom has spirally-guided runner and angle of flare; Self-oscillation nozzle spirally-guided runner is directed to the rotating jet with three-dimensional velocity with the axial incoming flow of one dimension, gives full play to the synergy of rotating jet and direct projection stream, obtains than pulsing jet and all high efficiency of breaking rock of rotating jet; Self-oscillation nozzle angle of flare make the exit vertically the effluxvelocity gradient reduce, barometric gradient increases, and is easy to produce boundary-layer and separates, and helps the generation of vortex and comes off; Induced vibration is strong, increases initial cavitation number, strengthens cavitation intensity, has higher impulse amplitude and amplitude; Effectively improve bottom-hole flow field, reduce chip hold down effect, improve bottom hole flushing and auxiliary rock, large rock-clearing effect; Give full play to machinery and hydraulic energy effect, improve rate of penetration, reduce drilling cost.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a kind of assembly structure sketch map of novel pulser unit;
Fig. 2 is a kind of main body structure sketch map of novel pulser unit;
Fig. 3 A is a kind of structural representation of baffle of novel pulser unit;
Fig. 3 B is the right sectional structure sketch map of Fig. 3 A;
Fig. 3 C is the plan structure sketch map of Fig. 3 A;
Fig. 4 is a kind of structural representation of impeller assembly of novel pulser unit;
Fig. 5 is a kind of structural representation of impeller base of novel pulser unit;
Fig. 6 A is a kind of structural representation of axle sleeve of novel pulser unit;
Fig. 6 B is the plan structure sketch map of Fig. 6 A;
Fig. 7 is a kind of self-oscillation structure of nozzle sketch map of novel pulser unit.
Female joint is 2. gone up in 1. reducer unions among the figure, 3. circlip, and 4. baffle, 5. body, 6. impeller assembly, 7. the self-oscillation nozzle 8. descends female joint.
The specific embodiment
A kind of novel pulser unit is made up of reducer union 1, circlip 3, baffle 4, body 5, impeller assembly 6, self-oscillation nozzle 7.
Reducer union 1 is hollow tubular bodies that two ends are processed with screw buckle with body 5; One end of reducer union 1 is connected with drill collar or mud motor; The last female joint 2 of body 5 is connected to the drilling fluid arrival end with the other end of reducer union 1; The following female joint 8 and the drill bit of body 5 are connected to the drilling fluid port of export; Between the body 5 drilling fluid arrival ends and the drilling fluid port of export, constitute containing cavity, be provided with circlip 3, baffle 4, impeller assembly 6 and self-oscillation nozzle 7 in it successively; Circlip 3 is positioned at the draw-in groove of body 5, prevents baffle 4 axial floats; Impeller assembly 6 is made up of impeller, impeller base, impeller shaft, axle sleeve, circlip and lock-screw; Axle sleeve and impeller base connect through screw buckle; The lock-screw locking axle sleeve; Prevent the stuck impeller of axle sleeve axial float, impeller and impeller shaft cooperate forms rotatable parts, and circlip prevents the stuck impeller of impeller shaft axial float; Body 5 containing cavities bottom is provided with the concave plane, constitutes the location end face; The self-oscillation nozzle 7 that has spirally-guided runner and angle of flare is positioned on the location end face of body 5.
Novel pulser unit is installed between drill bit and drill collar or the mud motor; Drilling fluid is through having the baffle of slope runner in the drilling process; Change the flow direction and the speed of drilling fluid, impeller blade is produced tangential force impel continuously rotation at a high speed of impeller.Under the effect of drilling fluid to the impeller blade impact force, impeller rotates at a high speed and continuously changes flow area, produces pulse.Be positioned at the chamber of generating apparatus bottom self-oscillation nozzle, the drilling fluid fluctuating signal is amplified and produces fluid resonance, when its outlet contracted section through oscillation chamber gets into the resonance nozzle, the generation pressure oscillation.This pressure oscillation reflected back resonator again forms the feedback pressure vibration; When the frequency of pressure oscillation is consistent with the frequency of resonator; The feedback pressure vibration is able to amplify, thereby in resonator, produces the humorous resonance of fluid sound, produces strong pulsation collar vortex stream at fluid outlet.And the spirally-guided runner of self-oscillation nozzle exit is directed to the rotating jet with three-dimensional velocity with the axial incoming flow of one dimension, gives full play to the synergy of rotating jet and direct projection stream; The angle of flare of self-oscillation nozzle make the exit vertically the effluxvelocity gradient reduce, barometric gradient increases, induced vibration is strong, strengthens cavitation intensity, and higher impulse amplitude and amplitude are arranged; At last impact the shaft bottom with the mode of surge pressure; Improve bottom-hole flow field, make the conventional continuous-flow that gets into drill bit be modulated into vibratory impulse and flow, reduce chip hold down effect; Improve bottom hole flushing and auxiliary rock, large rock-clearing effect; Give full play to machinery and hydraulic energy effect, improve rate of penetration, reduce drilling cost.
More than be the preferred embodiment of the utility model, all changes of being done according to the utility model technical scheme when the function that is produced does not exceed the scope of the utility model technical scheme, all belong to the protection domain of the utility model.
Claims (8)
1. a novel pulser unit is characterized in that, is made up of reducer union (1), circlip (3), baffle (4), body (5), impeller assembly (6), self-oscillation nozzle (7);
Said reducer union (1) and said body (5) are processed with the hollow tubular body of screw buckle for two ends; Said reducer union (1) one end is connected with drill collar or mud motor; The last female joint (2) of said body (5) is connected to the drilling fluid arrival end with said reducer union (1) other end; The following female joint (8) of said body (5) is connected to the drilling fluid port of export with drill bit; Between said body (5) the drilling fluid arrival end and said body (5) the drilling fluid port of export, constitute containing cavity, be provided with circlip (3), baffle (4), impeller assembly (6) and self-oscillation nozzle (7) in it successively; Said circlip (3) is positioned at the draw-in groove of said body (5), prevents said baffle (4) axial float; Said baffle (4) has the slope runner; Said impeller assembly (6) is made up of impeller, impeller base, impeller shaft, axle sleeve, circlip and lock-screw; Axle sleeve is connected through screw buckle with impeller base; The lock-screw locking axle sleeve prevents the stuck impeller of axle sleeve axial float, and impeller is installed on the impeller shaft; Impeller shaft is installed on the impeller base through axle sleeve, and the circlip at impeller shaft two ends prevents the stuck impeller of impeller shaft axial float; Said body (5) containing cavity bottom is provided with the concave plane, constitutes the location end face; Said self-oscillation nozzle (7) is positioned on the location end face of said body (5), and the bottom has spirally-guided runner and angle of flare.
2. by the described a kind of novel pulser unit of claim 1, it is characterized in that said reducer union (1) lower end is connected with said body (5) upper end, is convenient to install said body (5) containing cavity inner body.
3. by the described a kind of novel pulser unit of claim 1, it is characterized in that said body (5) containing cavity bottom is provided with the concave plane, constitute the location end face.
4. by the described a kind of novel pulser unit of claim 1, it is characterized in that said baffle (4) entrance section is processed with the screw thread fabrication hole, be convenient to install, dismantle and change component; Be provided with locating flange with said impeller base cooperation place, be convenient to the said impeller of installing and locating; Place, said baffle (4) outlet is provided with the processing shoulder, strengthens wear-resisting erosion resistance ability; Said baffle (4) has ramped aisle, and entrance section is greater than the outlet.
5. by the described a kind of novel pulser unit of claim 1, it is characterized in that said impeller base side has two to connect screwed hole, the axis of said perforation screwed hole and said containing cavity is perpendicular; Said impeller base arrival end has two screwed holes, passes through mutually with said perforation screwed hole, is used to install lock-screw, prevents the stuck impeller of said axle sleeve axial float.
6. by the described a kind of novel pulser unit of claim 1, it is characterized in that said impeller shaft rotates around said axle sleeve, circlip is equipped with at said impeller shaft two ends, prevents the stuck impeller of said impeller shaft axial float.
7. by the described a kind of novel pulser unit of claim 1, it is characterized in that said axle sleeve is processed with screw thread outward, connect with the perforation screwed hole of said impeller base through screw buckle; Said axle sleeve one end has through groove, is convenient to installing/dismounting.
8. by the described a kind of novel pulser unit of claim 1, it is characterized in that said self-oscillation nozzle (7) is a multistage cross section circular flow channel, the bottom has spirally-guided runner and angle of flare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202716582U CN202596580U (en) | 2012-06-11 | 2012-06-11 | Novel pulse generator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202716582U CN202596580U (en) | 2012-06-11 | 2012-06-11 | Novel pulse generator device |
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| Publication Number | Publication Date |
|---|---|
| CN202596580U true CN202596580U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202716582U Expired - Fee Related CN202596580U (en) | 2012-06-11 | 2012-06-11 | Novel pulse generator device |
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| CN (1) | CN202596580U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317399A (en) * | 2014-07-23 | 2016-02-10 | 中国石油天然气股份有限公司勘探开发研究院 | Pulse valve used for oil pipe blockage removing |
| CN105396719A (en) * | 2015-12-09 | 2016-03-16 | 中国海洋工程公司 | Pulse diversion cavitation generator |
| CN106040677A (en) * | 2016-07-03 | 2016-10-26 | 曾春盛 | Water-gas transverse-axis electromagnetic variable-frequency pulse wave descaling device for oil-gas pipeline |
| CN106481273A (en) * | 2016-11-09 | 2017-03-08 | 西南石油大学 | Fluidic oscillation realizes the drilling tool of axial impact |
| CN106812462A (en) * | 2016-12-28 | 2017-06-09 | 倪红坚 | A kind of multidimensional percussion drilling tool |
| CN109550604A (en) * | 2019-01-16 | 2019-04-02 | 武汉大学 | A kind of self-excitation blocking type pulsing jet generating device |
| CN109812231A (en) * | 2019-03-27 | 2019-05-28 | 中国石油大学(北京) | Impulse oscillation speed-raising tool |
| CN112483031A (en) * | 2019-09-11 | 2021-03-12 | 中国石油化工股份有限公司 | Downhole auxiliary rock-carrying tool and method |
-
2012
- 2012-06-11 CN CN2012202716582U patent/CN202596580U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317399A (en) * | 2014-07-23 | 2016-02-10 | 中国石油天然气股份有限公司勘探开发研究院 | Pulse valve used for oil pipe blockage removing |
| CN105396719A (en) * | 2015-12-09 | 2016-03-16 | 中国海洋工程公司 | Pulse diversion cavitation generator |
| CN105396719B (en) * | 2015-12-09 | 2018-06-01 | 中国海洋工程公司 | A kind of pulse water conservancy diversion cavitation generator |
| CN106040677A (en) * | 2016-07-03 | 2016-10-26 | 曾春盛 | Water-gas transverse-axis electromagnetic variable-frequency pulse wave descaling device for oil-gas pipeline |
| CN106481273A (en) * | 2016-11-09 | 2017-03-08 | 西南石油大学 | Fluidic oscillation realizes the drilling tool of axial impact |
| CN106812462A (en) * | 2016-12-28 | 2017-06-09 | 倪红坚 | A kind of multidimensional percussion drilling tool |
| CN109550604A (en) * | 2019-01-16 | 2019-04-02 | 武汉大学 | A kind of self-excitation blocking type pulsing jet generating device |
| CN109812231A (en) * | 2019-03-27 | 2019-05-28 | 中国石油大学(北京) | Impulse oscillation speed-raising tool |
| CN109812231B (en) * | 2019-03-27 | 2024-03-26 | 中国石油大学(北京) | Pulse vibration accelerating tool |
| CN112483031A (en) * | 2019-09-11 | 2021-03-12 | 中国石油化工股份有限公司 | Downhole auxiliary rock-carrying tool and method |
| CN112483031B (en) * | 2019-09-11 | 2022-05-17 | 中国石油化工股份有限公司 | Downhole auxiliary rock-carrying tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130611 |