CN207080220U - Underground rotary valve pressure pulse generator - Google Patents
Underground rotary valve pressure pulse generator Download PDFInfo
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- CN207080220U CN207080220U CN201721027372.9U CN201721027372U CN207080220U CN 207080220 U CN207080220 U CN 207080220U CN 201721027372 U CN201721027372 U CN 201721027372U CN 207080220 U CN207080220 U CN 207080220U
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- rotary valve
- tube structure
- rotor
- main shaft
- pressure pulse
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Abstract
The utility model provides a kind of underground rotary valve pressure pulse generator, the tube structure formed is sequentially connected by top connection, outer barrel, lower contact, tube structure is internally formed flow channels, it is characterized in that, also include rotary valve, the rotary valve is arranged on inside tube structure, the rotary valve includes stator, rotor, main shaft, the stator opens up flowing hole, the rotor is fixed on main shaft, and rotor encloses to rotate around the spindle is arranged on tube structure inwall to sheath offset described in the flowing hole change area of passage on stator.Drive mechanism is additionally provided with inside the tube structure, drive mechanism clutch end connects the main shaft of rotary valve.The rotor is connected by main shaft with decelerator, and the drive mechanism includes decelerator, magnetic coupling, flexible clutch, the motor being sequentially connected.The utility model realizes that pressure pulse signal is transmitted to well head.
Description
Technical field
Oil-field flooding technology field is the utility model is related to, especially a kind of underground rotary valve pressure pulse generator.
Background technology
In recent years, with the continuous progress of water injection well zonal injection technology, water well test and blending technology also develop rapidly, by normal
Rule wire Launching and Bailing formula surveys tuning electromechanical integration survey tune and intelligent well completion dispensing direction is developed.With micro machine and automatic technology
Progress, oil field water well dispensing field carried out intelligent testing conditioning technology research, from have cable transmit to be wirelessly transferred direction hair
Exhibition.There is cable transmission technology relative maturity underground at present, by the signal parameter between cable transmission ground and downhole instrument, and
Carry out field test, be wirelessly transferred technique mainly by the modes such as electromagnetic signal, sound wave or pressure pulse, above-mentioned transmission means
Applied in drilling applications, due to the shielding of water injection well wellbore casing and the influence of signal attenuation, electromagnetic signal and sonic transmissions
Enforcement difficulty is big, and using less, pressure pulse signal and pressure and flow are closely related in water injection well field, the characteristics of with water injection well
It is consistent, therefore, has carried out down-hole pressure pulse technique research, its technological core is downhole pulser.Underground pulse generation
Device has been applied in drilling measuring technology, and the discharge capacity for mainly controlling injection mud by downhole pulser produces pressure arteries and veins
Signal is rushed, realizes the upload of underground parameter to be measured.It is limited in water injection well using drilling well impulse generator：1) water filling
Well discharge capacity is much smaller than drilling mud discharge capacity, can not produce effective pressure pulse amplitude and be identified for ground；2) water injection well water is unidirectional
Stratum is injected, stratum back pressure influences pulse amplitude；3) impulse generator must have hollow passageway, meet tester tripping in
Need；4) limited by water injection well casing size, impulse generator external diameter is less than 115mm；5) need to be placed in water filling pit shaft for a long time
Middle work, life-span will meet the needs of well examines more than 3 years pipe cycle.
Restricted by factors above, it is necessary to which the characteristics of being directed to water injection well, develops a kind of novel pressure impulse generator, generation can
The pulse signal leaned on, realize that signal is wirelessly transferred, therefore devise the utility model patent underground rotary valve pressure pulse and occur
Device.
Through patent searching document, application number：201210063932.1 it is high that publication date 2012-07-04 discloses a kind of underground
Speed mud positive pulse device, including lead-out terminal, valve body and the alternator assembly, intermediate bearing sleeve and the top that are sequentially connected are total
Into four parts；Wherein described top assembly includes the piston and spring being arranged in top casing, and installed in intermediate bearing
The plunger pump and swash plate of set upper side；Plunger pump includes plunger pump case and the plunger in plunger pump case, and top casing sets and let out
Oilhole, the position of the oil leak hole are located at the lower end of top casing；Return spring is set between top casing and piston.
The utility model is overcomes existing pulser to transmit the shortcomings that data are slow, to the oil leak hole of top assembly part, plunger and swash plate
The parts such as inclination angle are improved, and rotary valve is swift in motion, and rotational angle is small, improve pulse rate and the response speed of pulser
Degree, ensure that the data transmission bauds of high-speed pulse interval data form.
Patent document disclosed above in technical scheme, technique effect and the technical problem of solution all with the utility model not
It is identical.
Utility model content
The purpose of this utility model is to provide a kind of underground rotary valve pressure pulse generator, realizes that pressure pulse signal passes
Transport to well head；Eccentric bypass flow channel design, meets normal water filling and instrument tripping in requirement；Under the conditions of low discharge water filling, realize
The generation of positive pulse signal；Rotary valve control mode is simple, synchronism is strong, ensure that open and closed are accurate in place.
The purpose of this utility model can be achieved by the following technical measures：
The underground rotary valve pressure pulse generator, including the cylinder formed is sequentially connected by top connection, outer barrel, lower contact
Structure, tube structure are internally formed flow channels, in addition to rotary valve, and the rotary valve is arranged on inside tube structure, the rotary valve
Including stator, rotor, main shaft, the stator opens up flowing hole, and the rotor is fixed on main shaft, and rotor, which encloses, to be rotated around the spindle pair
Flowing hole on stator changes area of passage.
The purpose of this utility model can be also achieved by the following technical measures：
Drive mechanism is additionally provided with inside the tube structure, drive mechanism clutch end connects the main shaft of rotary valve.
The rotor is connected by main shaft with decelerator, and the drive mechanism includes decelerator, the magnetic force connection being sequentially connected
Axle device, flexible clutch, motor.
Power module, power module connection motor are additionally provided with inside the tube structure.
The drive mechanism, power module are protected in sheath, and the sheath offset is arranged in tube structure
Wall.
The utility model has the advantages that compared with prior art：
Stator is arranged on body by screw, and rotor is located at below stator, is driven by motor.Need to occur
During pulse signal, downhole sensor the data transfer measured to message processing module, after message processing module encodes information onto
The drive circuit of motor is passed to, driving rotary valve does reciprocally swinging, coordinates with stator, realize regular open within the specific limits
Close.The regular change of circulation area, throttles to the fluid in water injection string in rotary valve motion process, so as in tubing string
Positive pulse pressure signal is produced, wellhead pressure sensor is filtered to the positive pulse signal of upload, demodulated, shows by terminal
Show, so as to obtain the information such as down-hole pressure, flow, temperature.
Rotary valve is opened in the injecting process, and the flow channels that stator and rotary valve are formed are parallel with tubing string direction, and rotary valve is static, opens
Begin to carry out water filling；When needing lower instrument test, flow channels that instrument is formed by the stator and rotary valve carry out decentralization and
Above carry.
When needing to produce pulse signal, rotary valve does reciprocally swinging within the specific limits according to instruction, and rotary valve is continuously swung
During, area of passage replaces change between stator and rotor, and the water in water injection string realizes boosting, produces certain amplitude and rule
The positive pulse pressure ripple of rule, pressure wave is transferred to ground and parsed by uphole instruments by the water in oil pipe obtains downhole data.
Drive mechanism is powered by down-hole power.
1. eccentric bypass flow channel design, meets normal water filling and instrument tripping in requirement；
2. under the conditions of low discharge water filling, the generation of positive pulse signal is realized；
3. rotary valve control mode is simple, synchronism is strong, it ensure that open and closed are accurate in place.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is rotary valve structure schematic diagram；
Fig. 3 is the utility model control system module principle figure.
In figure：Top connection 1, rotary valve 2, drive mechanism 3, power module 4, sheath 5, outer barrel 6, lower contact 7；
Stator 21, rotor 22, main shaft 23；
Decelerator 31, magnetic coupling 32, flexible clutch 33, motor 34.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing is only to refer to
With purposes of discussion, not it is used for being any limitation as the utility model.
As illustrated in the accompanying drawings from 1 to 3, the underground rotary valve pressure pulse generator include by top connection 1, outer barrel 6, lower contact 7 according to
The secondary tube structure connected and composed, tube structure are internally formed flow channels, in addition to rotary valve 2, and the rotary valve is arranged on cylinder
Inside configuration, the rotary valve include stator 21, rotor 22, main shaft 23, and the stator opens up flowing hole, and the rotor is fixed on master
On axle, rotor encloses to rotate around the spindle changes area of passage to the flowing hole on stator.
Drive mechanism is additionally provided with inside the tube structure, drive mechanism clutch end connects the main shaft of rotary valve.Institute
Rotor is stated to be connected with decelerator by main shaft, it is decelerator 31 that the drive mechanism includes being sequentially connected, magnetic coupling 32, soft
Property shaft coupling 33, motor 34.
Power module 4, power module connection motor are additionally provided with inside the tube structure.
The drive mechanism, power module are protected in sheath 5, and the sheath offset is arranged in tube structure
Wall.
The rotary valve impulse generator is connected by upper lower contact with water injection string, the data that downhole sensor will measure
Pass to message processing module, message processing module is according to certain rule encoding, and the data information transfer after coding is to motor
Drive circuit module, drive circuit sends instruction, and driving rotary valve does reciprocally swinging within the specific limits according to certain rule, reality
Existing regular switch, produces pressure pulse signal, different parameter under the different motion state corresponding well of rotary valve.
Rotary valve is opened in the injecting process, and the flow channels that stator and rotor are formed are parallel with tubing string direction, and rotary valve is static, opens
Begin to carry out water filling；When needing lower instrument test, flow channels that instrument is formed by the stator and rotor carry out decentralization and
Above carry.
When needing to produce pulse signal, motor rotates according to instruction, and driving rotary valve does reciprocally swinging within the specific limits,
In the continuous swing process of rotary valve, area of passage continuously replaces change between stator and rotor, and the water in water injection string realizes boosting,
The positive pulse pressure ripple of certain amplitude and rule is produced, pressure wave is transferred to ground and by uphole instruments solution by the water in oil pipe
Analysis obtains downhole data.Drive mechanism is powered by down-hole power.
Drive circuit module of the data information transfer after coding to motor, drive circuit are sent finger by message processing module
Make to motor, so as to control the pests occurrence rule of pulse signal.Circulation area between rotor and stator decides the strong of signal
It is weak, can be by selecting different stator rotor gaps or rotor size to be allowed to be applied to different wells come the power of control signal
Eye, different flow, the working environment of different well depths.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its
He uses the equivalence changes of the utility model patent spirit, all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. underground rotary valve pressure pulse generator, including the cylinder knot formed is sequentially connected by top connection, outer barrel, lower contact
Structure, tube structure are internally formed flow channels, it is characterised in that also it be arranged on including rotary valve, the rotary valve inside tube structure,
The rotary valve includes stator, rotor, main shaft, and the stator opens up flowing hole, and the rotor is fixed on main shaft, and rotor is around master
Axle rotation changes area of passage to the flowing hole on stator.
2. rotary valve pressure pulse generator in underground according to claim 1, it is characterised in that inside the tube structure
Drive mechanism is additionally provided with, drive mechanism clutch end connects the main shaft of rotary valve.
3. rotary valve pressure pulse generator in underground according to claim 2, it is characterised in that the rotor passes through main shaft
It is connected with decelerator, the drive mechanism includes decelerator, magnetic coupling, flexible clutch, the motor being sequentially connected.
4. rotary valve pressure pulse generator in underground according to claim 3, it is characterised in that inside the tube structure
It is additionally provided with power module, power module connection motor.
5. rotary valve pressure pulse generator in underground according to claim 4, it is characterised in that the drive mechanism, electricity
Source module is protected in sheath, and the sheath offset is arranged on tube structure inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027372.9U CN207080220U (en) | 2017-08-16 | 2017-08-16 | Underground rotary valve pressure pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027372.9U CN207080220U (en) | 2017-08-16 | 2017-08-16 | Underground rotary valve pressure pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080220U true CN207080220U (en) | 2018-03-09 |
Family
ID=61420311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721027372.9U Active CN207080220U (en) | 2017-08-16 | 2017-08-16 | Underground rotary valve pressure pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424357A (en) * | 2017-08-16 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of rotary valve pressure pulse generator |
-
2017
- 2017-08-16 CN CN201721027372.9U patent/CN207080220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424357A (en) * | 2017-08-16 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of rotary valve pressure pulse generator |
| CN109424357B (en) * | 2017-08-16 | 2023-09-01 | 中国石油化工股份有限公司 | Rotary valve type pressure pulse generator |
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