CN104675612B - Measurement while drilling band speed-regulating function slurry generator - Google Patents
Measurement while drilling band speed-regulating function slurry generator Download PDFInfo
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- CN104675612B CN104675612B CN201410465253.6A CN201410465253A CN104675612B CN 104675612 B CN104675612 B CN 104675612B CN 201410465253 A CN201410465253 A CN 201410465253A CN 104675612 B CN104675612 B CN 104675612B
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- generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention discloses measurement while drilling band speed-regulating function slurry generator, including, mud impeller, magnetic force coupling gearing device, generator casing, generator unit stator, alternator shaft, buncher stator, alignment circuit and tachogenerator.One end of magnetic force coupling gearing device is fixedly connected with mud impeller, and the other end is fixedly connected with alternator shaft, is arranged in generator casing, generator casing inwall stationary power generation machine stator and buncher stator；The input of alignment circuit and the output end of tachogenerator are connected, and realized according to the influence value of tachogenerator and the rotating speed of generator is adjusted.Motor speed of the present invention is more stable, and output voltage is more steady, and the output quality of power supply is higher, and stable rotating speed also improves electric efficiency and service life, and its performance is more excellent.
Description
Technical field
Band speed-regulating function mud is used to generate electricity the present invention relates to oil exploitation and field of detecting, more particularly to a kind of measurement while drilling
Machine.
Background technology
Petroleum industry measurement while drilling (MWD) technology was a Main way of oilfield technology service, by nearly more than 10 years
Development, comparative maturity abroad at present, down-hole power is MWD key equipment.With the development of drilling and production technology, oil-gas reservoir money
The mine depth in source, the increase of horizontal well length.MWD measuring instruments and associated mechanisms longevity of service, functional requirement are high, measurement
Parameter species is more, underground controlling organization subtilizedization, complication.And then require the underground power supply used power supplys of MWD can for a long time can
By work, so as to provide continual and steady electric energy for system.At present, drill rod telemetry system is mainly battery with underground power supply used power supply
Group and turbine type alternating current generator, abbreviation slurry generator.
Battery power is in the majority with high-performance lithium battery, and compact conformation is easy for installation, and data transfer is reliable, but transmission ginseng
Number is few, is affected by temperature greatly, and most capacity are only capable of maintenance system continuously work about 200h.And being continuously increased with well depth,
9000-15000m is can be usually reached, and bottom hole temperature (BHT) is constantly raised with the increase of temperature, current shaft bottom reaches 225-250
Degrees centigrade.The temperature that common batteries group can be born is 160 degrees centigrades, can not gradually meet requirement.Battery is changed to draw
That rises stops brill and can increase drilling cost, and easily causes seal leakage, in addition, old and useless battery pollutes environment, without environmental protection
Meaning.Therefore, it has been difficult to meet measurement while-drilling instrument, control instrument and deep drilling pair as the lithium battery of underground main flow power supply
The need for electric power.
The content of the invention
In view of situation present in prior art, there is provided measurement while drilling band speed governing work(according to an aspect of the present invention
Can slurry generator.
Measurement while drilling in present invention band speed-regulating function slurry generator, including, mud impeller, magnetic driver dress
Put, generator casing, generator unit stator, alternator shaft, buncher stator, alignment circuit and tachogenerator；The magnetic
One end of power coupling transmission device is fixedly connected with the mud impeller, and the other end is fixedly connected with the alternator shaft, if
It is placed in the generator casing, is flexibly connected with the generator casing, the generator casing inwall fixed generator is determined
Son and buncher stator；The test circuit with being fixedly connected on the inside of the generator casing, the alignment circuit it is defeated
Enter end be connected with the output end of the tachogenerator, from the tachogenerator reception current generator rotating speed, output end and
The buncher stator connection, if the current generator rotating speed is more than setting value, drives the buncher stator to lead to
Electricity, produces reactive torque, makes the alternator shaft reduction of speed.
In a preferred embodiment, in addition to, socket, joint and dead ring；The socket is connected to described connect
One end of head, the other end of the joint is fixedly connected by the dead ring with one end of the generator casing.
In a preferred embodiment, in addition to, dead ring, the dead ring is assemblied in the magnetic driver
The connection end of device and the mud impeller, is arranged at the outside that the dead ring is assemblied in the magnetic force coupling gearing device.
In a preferred embodiment, in addition to, mud flow cartridge；The mud flow cartridge and the outer end of the dead ring
It is fixedly connected, is set in the outside of the mud impeller.
In a preferred embodiment, in addition to, mud impeller blocking cap, the mud impeller blocking cap and the mud
The end of impeller is fixedly connected.
In a preferred embodiment, in addition to, dam disk seat, it is described dam disk seat with the dead ring fix connect
Connect, positioned at the outside of the mud impeller blocking cap.
In a preferred embodiment, in addition to, centralizer, the centralizer with it is described dam disk seat outside consolidate
Fixed connection.
In a preferred embodiment, in addition to, dam disk, and the outside for damming disk and the centralizer is fixed
Connection.
In a preferred embodiment, in addition to, filtering slurry cylinder, filtering slurry cylinder and the disk that dams
Outside is fixedly connected.
By above-mentioned technical proposal, the present invention has advantages below compared with prior art：The mud hair that the present invention is designed
Motor realizes being generated electricity using mud for task, while passing through built-in buncher work using mud driving turbo blade rotation
Make so that slurry generator has speed-regulating function.Slurry generator continuously works with circulating mud, until mud stops.Turbine
It is made of high temperature resistance high pressure anti-wear corrosion material, long working life, the alternating current sent can after power electronics voltage stabilizing rectification
Continual and steady direct current is provided for system.Buncher built in slurry generator, buncher work different according to mud flow rate
Make in different conditions so that generator speed remains at stability range, compared with existing product, this exclusive function ensures
Motor speed of the present invention is more stable, and output voltage is more steady, and the output quality of power supply is higher, and stable rotating speed also improves motor
Efficiency and service life, its performance are more excellent.The use of cartridge filter, enhances quality of mud fluid accommodation simultaneously.For more preferable anti-rotation,
Using unique fastening ring structure.The use of spring pad also ensures the assembling quality of motor so that motor is easy to assemble, dismantle and
Safeguard, versatility is stronger.
Brief description of the drawings
Fig. 1 is the Part I structural representation of measurement while drilling smaller sized shale generator in one embodiment of the present invention；
Fig. 2 is the Part II structural representation of measurement while drilling smaller sized shale generator in one embodiment of the present invention；
Fig. 3 is the Part III structural representation of measurement while drilling smaller sized shale generator in one embodiment of the present invention；
Fig. 4 is the Part IV structural representation of measurement while drilling smaller sized shale generator in one embodiment of the present invention；
The sectional view that Fig. 5 is A-A in Fig. 4；
Fig. 6 is the dead ring structural representation of measurement while drilling smaller sized shale generator in one embodiment of the present invention.
Reference
1- buncher stators；2- generator unit stators；3- sockets；4- joints；5- magnetic force coupling gearing devices；6- bearings；
7- dead rings；8- mud flow cartridges；9- mud impellers；10- mud impeller blocking caps；11- dam disk seat；12- centralizers；13- dams
Disk；14- filtering slurries cylinder；15- spring pads；16- alignment circuits.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 be mud turbine generator structural representation, its main building block include buncher including, mud
Impeller, magnetic force coupling gearing device, generator casing, generator unit stator, alternator shaft, buncher stator, alignment circuit
And tachogenerator；One end of the magnetic force coupling gearing device is fixedly connected with the mud impeller, the other end and the hair
Machine shaft is fixedly connected, and is arranged in the generator casing, is flexibly connected with the generator casing, outside the generator
Shell inwall stationary power generation machine stator and buncher stator；The inner side of the test circuit and the generator casing, which is fixed, to be connected
Connect, the input of the alignment circuit is connected with the output end of the tachogenerator, receive current from the tachogenerator
Generator speed, output end is connected with the buncher stator, if the current generator rotating speed is more than setting value, is driven
The buncher stator is powered, and produces reactive torque, makes the alternator shaft reduction of speed.
In a preferred embodiment, socket is connected to one end of the joint, and the other end of joint passes through described
Dead ring is fixedly connected with one end of the generator casing.
In a preferred embodiment, also it is fixedly connected with dead ring in the outside of magnetic force coupling gearing device.Such as Fig. 6
Shown, on the outside of dead ring being also sequentially connected mud flow cartridge, (mud flow cartridge is fixedly connected with the outer end of the dead ring, is set in
The outside of the mud impeller), mud impeller blocking cap (mud impeller blocking cap is fixedly connected with the end of mud impeller), dam disk
Seat (the disk seat that dams is fixedly connected with the dead ring, positioned at the outside of mud impeller blocking cap), centralizer (centralizer and the disk that dams
The outside of seat is fixedly connected), the disk that dams (disk that dams on the outside of centralizer with being fixedly connected), filtering slurry cylinder (filtering slurry cylinder
It is fixedly connected with the outside of the disk that dams).
Cartridge filter section, is provided with 18 grooves vertically on its circumference.Mud from cartridge filter flow into when, pass through the mistake of fluting
Filter is acted on so that large granular impurity is filtered, it is ensured that enter the quality of flow cartridge mud.Worked when underground is long after a period of time, mud
More impurity can be contained in slurry, the use of cartridge filter can ensure that impurity does not enter air stream enter runner, it is to avoid it is collided with rushing with mud impeller
Hit so that rotate smooth, mud impeller life is improved, so as to improve the working life of slurry generator.Cartridge filter is with cutting
Flow table housing is connected by screw thread, to avoid mud from entering destruction screw thread, holding screw anti-rotation is used in junction, such as Fig. 5 institutes
Show.
Different using back-up ring fixation mud impeller from Conventional mud generator, the present invention is fixed using unique stopper structure
Mud impeller.After mud impeller is installed in place, by tightening plug, mud impeller axial float is prevented.Compared with back-up ring, plug
Cleanliness more preferably, its flow resistance is smaller, and the influence to runner is also smaller.Installation, the dismounting of plug are more convenient simultaneously, can be effective
Improve the assembly performance of product.
Underground survey works, and when mud flow rate is excessive, generator speed is too high, influences motor service life, exports simultaneously
Voltage is higher, is also unfavorable for rear end measurement apparatus and normally uses, therefore it is required that reliably working when slurry generator is long, it exports electricity
Pressure will also be maintained at stability range.This patent realizes this function by built-in buncher, when generator speed is beyond setting
During stabilized (steady-state) speed, alignment circuit control buncher carry load work exports braking moment, consumption magnetic force coupling gearing device transmission
Energy, generator speed is maintained at stability range, it is ensured that normal power supply demand, improve life of product.
Dead ring graphics is as shown in figure 4, its one end has 4 uniform extension keies, and the other end has a thin layer, for screw thread
Anti-rotation between two adjacent housings of connection.During installation, first extension key is inserted in enclosure slot, is threaded onto behind position, by the other end
Thin layer is pressed into the mounting groove of corresponding position, so as to play anti-rotation effect.
Spring pad graphics is as shown in figure 5, its one end has 4 uniform grooves, and by frock insertion groove during installation, rotation is adjusted
Spring pad position, it is ensured that each part is installed in place.
Operation principle is as follows：After mud is filtered through cartridge filter, flowed into along catch tray through flow hole, impact slurry turbine, driven
Magnetic couple device is rotated, so as to drive drive axis so that generator and buncher rotation, the alternating current of generation pass through
After rectification, exported with DC form, realize system power supply.When rotating speed is higher than setting stabilized (steady-state) speed, alignment circuit sends instruction,
Buncher run with load, consumed energy so that rotating speed drops to stability range.
The method have the characteristics that：The invention provides a kind of slurry generator for being used to power for measurement-while-drilling system,
By the use of buncher and alignment circuit, possesses speed-regulating function.Pass through the use of cartridge filter, it is to avoid bulky grain mud is miscellaneous
The inflow of matter.By the use of dead ring, anti-rotation effect is played, it is ensured that the reliability of each connecting portion.Pass through spring pad
Use so that each part is installed in place, it is ensured that slurry generator assembles quality and manufacturability
Designed based on more than, slurry generator long-term work improves electric efficiency in stabilized (steady-state) speed scope, reduces electricity
Machine is lost, and has stronger adaptability for underground hot environment.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection domain of invention.
Claims (6)
1. measurement while drilling band speed-regulating function slurry generator, it is characterised in that including mud impeller, magnetic driver dress
Put, generator casing, generator unit stator, alternator shaft, buncher stator, alignment circuit and tachogenerator；The magnetic
One end of power coupling transmission device is fixedly connected with the mud impeller, and the other end is fixedly connected with the alternator shaft, if
It is placed in the generator casing, is flexibly connected with the generator casing, the generator casing inwall fixed generator is determined
Son and buncher stator；The alignment circuit with being fixedly connected on the inside of the generator casing, the alignment circuit it is defeated
Enter end be connected with the output end of the tachogenerator, from the tachogenerator reception current generator rotating speed, output end and
The buncher stator connection, if the current generator rotating speed is more than setting value, drives the buncher stator to lead to
Electricity, produces reactive torque, makes the alternator shaft reduction of speed；
Further, the measurement while drilling band speed-regulating function slurry generator also includes, first, second, and third dead ring,
First dead ring is assemblied in the connection end of the magnetic force coupling gearing device and the mud impeller, the assembling of the first dead ring
In the outside of the magnetic force coupling gearing device；
Further, there are 4 uniform extension keies described first, second, third dead ring one end, and the other end has a thin layer, uses
The anti-rotation between two adjacent housings of threaded connection；
Further, the measurement while drilling band speed-regulating function slurry generator also includes, mud flow cartridge；The mud flow cartridge with
The outer end of first dead ring is fixedly connected, and is set in the outside of the mud impeller；
Further, the measurement while drilling band speed-regulating function slurry generator also includes, mud impeller blocking cap, the mud leaf
Wheel blocking cap is fixedly connected with the end of the mud impeller.
2. measurement while drilling according to claim 1 band speed-regulating function slurry generator, it is characterised in that also include, insert
Seat, joint；The socket is connected to one end of the joint, and the other end of the joint is generated electricity by the second dead ring with described
One end of machine shell is fixedly connected.
3. measurement while drilling according to claim 1 band speed-regulating function slurry generator, it is characterised in that also include, cut
Flow table seat, the disk seat that dams is fixedly connected with the 3rd dead ring, positioned at the outside of the mud impeller blocking cap.
4. measurement while drilling according to claim 3 band speed-regulating function slurry generator, it is characterised in that also include, help
Positive device, the centralizer is fixedly connected with the outside for damming disk seat.
5. measurement while drilling according to claim 4 band speed-regulating function slurry generator, it is characterised in that also include, cut
Flow table, the disk that dams on the outside of the centralizer with being fixedly connected.
6. measurement while drilling according to claim 5 band speed-regulating function slurry generator, it is characterised in that also include, mud
Cartridge filter is starched, the filtering slurry cylinder on the outside of the disk that dams with being fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465253.6A CN104675612B (en) | 2014-09-12 | 2014-09-12 | Measurement while drilling band speed-regulating function slurry generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465253.6A CN104675612B (en) | 2014-09-12 | 2014-09-12 | Measurement while drilling band speed-regulating function slurry generator |
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| CN104675612A CN104675612A (en) | 2015-06-03 |
| CN104675612B true CN104675612B (en) | 2017-09-22 |
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| CN112098841A (en) * | 2020-11-23 | 2020-12-18 | 东营千禧龙科工贸有限公司 | Current testing device for mud generator of while-drilling instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE419113B (en) * | 1979-11-14 | 1981-07-13 | Allmaenna Ingbyran | WIND POWER PLANT FOR MAIN MECHANICAL TRANSMISSION OF A VARIABLE TURBINE SPEED TO A SYNCHRONOUS OUTPUT SPEED |
| CN2924052Y (en) * | 2006-06-22 | 2007-07-18 | 中国石化集团胜利石油管理局钻井工艺研究院 | Under ground slurry generator |
| CN201078306Y (en) * | 2007-07-10 | 2008-06-25 | 武汉海阔科技有限公司 | Down-hole slime pulp turbo generator |
| CN201226504Y (en) * | 2008-03-31 | 2009-04-22 | 华南理工大学 | Variable-speed constant-frequency wind power generation system based on dual rotors generator |
| CN101598113B (en) * | 2009-07-10 | 2011-06-15 | 中国科学院电工研究所 | Wind power plant generation device |
| CN201753653U (en) * | 2010-07-23 | 2011-03-02 | 华南理工大学 | Variable-speed hydroelectric generator unit based on power split and confluence |
| CN102269123B (en) * | 2011-06-24 | 2013-11-13 | 中国科学院电工研究所 | Wind power generation device |
| CN102338035A (en) * | 2011-08-30 | 2012-02-01 | 哈尔滨工业大学 | Composite rotor structure variable-speed constant-frequency wind power generator system and control method thereof |
| CN102996341A (en) * | 2012-11-01 | 2013-03-27 | 安徽蜂鸟电机有限公司 | Automatic protection control method for wind-driven generator |
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