CN103470433A - Underground mud power generation device - Google Patents
Underground mud power generation device Download PDFInfo
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- CN103470433A CN103470433A CN2013103610349A CN201310361034A CN103470433A CN 103470433 A CN103470433 A CN 103470433A CN 2013103610349 A CN2013103610349 A CN 2013103610349A CN 201310361034 A CN201310361034 A CN 201310361034A CN 103470433 A CN103470433 A CN 103470433A
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- generating device
- electricity generating
- turbine
- live axle
- hole slurry
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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 relates to the technical field of generators, in particular to an underground mud power generation device, which comprises an outer casing, a turbine, an outer coupling magnet, a driving shaft, an inner coupling magnet and a generator, wherein the turbine is arranged on the exterior of the outer casing, the outer coupling magnet is arranged on the turbine, the driving shaft is arranged in the outer casing, the inner coupling magnet is arranged on the driving shaft and corresponds to the outer coupling magnet in position, the generator is coaxially connected with the inner coupling magnet, and the outer casing is in a spindle shape. The underground mud power generation device has the advantages that the outer casing of the power generating device is in the spindle shape, and the hydraulic fluid is not used in the outer casing, so the power generating efficiency is improved, the drag on the mud flowing through the outer casing is effectively reduced, and the power generating device runs more smoothly; and the drag is reduced, so the speed of the mud flowing through the outer casing is higher, the pressure of the mud on the outer casing is also reduced, and the stability and the reliability of the power generating device under the mud pressure environment are improved.
Description
Technical field
The application relates to technical field of generators, relates in particular to a kind of down-hole slurry electricity generating device.
Background technique
Along with the generally application at oilfield development process of geosteering, logging while drilling technology and closed loop drilling technology, the energy supply of down-hole measurement and control instrument system requirements abundance is as assurance.At present, the power supply plan of the measurement-while-drilling system of oil or geological drilling industry has the lithium cell of employing and slurry generator power supply.Along with geosteering, the well logging during extensive use in oilfield development process, the power-on time that lithium cell is limited and power can not meet the requirement of complicated downhole instrument to large power supply, in addition, the heat-resisting quantity deficiency of lithium cell, at high temperature its Safety performance is difficult to guarantee, befouling environment, the shortcomings such as not reproducible use make down-hole slurry generator become a kind of in the urgent need to.
Current its principle of known down-hole slurry generator is that slurry fluid drives the turbine rotation, drives the drive shaft rotor, and cutting magnetic line is realized generating.Its transmission adopted magnetic couple technology, utilize inside and outside magnetic couple to drive generating rotating shaft rotation, and cutting magnetic line is realized generating.This technological scheme has realized contactless power transmission, makes slurry generator be broken away from movable sealing structure, has improved to a certain extent the reliability and stability of equipment.But, because oil is the down-hole in High Temperature High Pressure with the working environment that bores instrument, the shell of slurry generator is under high speed mud washes away, if the irregular meeting of shell shape causes case surface pressure inhomogeneous, easily form sharp pounding, can cause damage to shell, easily make for a long time shell fatigue, finally make generator in down-hole by pressure break, and the general employing of the shell of existing slurry generator is cylindrical, although the shell of this shape not there will be serious pressure inhomogeneous, but larger mud pressure is still being born on its surface, still there are many risks in such down-hole slurry generator in the underground work of High Temperature High Pressure.
In prior art, downhole generator inside usually can adopt hydraulic balance system to improve the anti-pressure ability of generator; once but the elastic capsule of realizing hydro-cushion rushes down leakage; can cause generator to damage and can't work, so adopt hydraulic balance system to have certain risk.And be full of the hydraulic oil of the outside mud pressure of balance at generator, and can cause suitable rotational resistance to alternator shaft, make the rotating speed of alternator shaft can not improve, limited greatly generating efficiency.
Therefore, in order to solve the problems of the technologies described above, provide a kind of generating efficiency high, anti-high pressure ability is strong again simultaneously, and the reliable down-hole slurry generator that can well adapt to the down-hole high pressure working environment seems particularly important.
Summary of the invention
The application's purpose is to avoid above-mentioned deficiency of the prior art and a kind of down-hole slurry electricity generating device is provided, can effectively reduce again the pressure that mud causes its shell when electricity generating device is worked when improving generating efficiency, guarantee stability, reliability and the high efficiency of this electricity generating device under the mud pressure environment.
The application's purpose is achieved through the following technical solutions:
A kind of down-hole slurry electricity generating device is provided, be arranged in drill collar, it comprises shell, be arranged on the turbine of housing exterior, be arranged on outer coupled magnets on turbine, be arranged on the live axle of enclosure, be arranged on live axle and the interior coupled magnets corresponding with the position of outer coupled magnets, with the coaxial generator be connected of described interior coupled magnets, the profile of described shell is arranged to spindle.
Wherein, the flow guide sleeve that also comprises the blade for guiding the described turbine of mud tangential impact.
Wherein, at the end away from flow guide sleeve, centre fastener is installed, described centre fastener and described flow guide sleeve are fixed in again described drill collar, thereby make this electricity generating device be fixedly installed in described drill collar.
Wherein, be respectively arranged with the first turbine sliding bearing and the second turbine sliding bearing of the friction that slides over each other on described turbine with described housing exterior, described the second turbine sliding bearing is supporting described turbine.
Wherein, described outer coupled magnets is pasted and fixed on described turbine, and described interior coupled magnets is pasted and fixed on described live axle.
Wherein, described outer coupled magnets and described interior coupled magnets are permanent magnet.
Wherein, described live axle is hollow shaft.
Wherein, the axle center of described live axle is provided with the spaghetti that runs through described live axle, and described spaghetti does not contact with described live axle, in described spaghetti, is installed with wire.
Wherein, described shell both ends of the surface are provided with tenminal block and by described tenminal block, described shell are sealed, and described enclosure is atmospheric pressure sealed, and the described tenminal block at two ends is communicated with by described wire.
Wherein, also be provided with for breaking down at this electricity generating device or standby high-temperature battery during stall.
The application's beneficial effect:
A kind of down-hole slurry electricity generating device of the application, its shell is designed to spindle.The shell of electricity generating device is designed to spindle, allows it have smooth fairing ace, suffered resistance in the time of can effectively reducing slurry flows and cross shell, can reduce the resistance of electricity generating device in slurry environment simultaneously, allow electricity generating device operate more smoothly.Owing to having reduced resistance, so the speed that mud flows through at generator casing also can accelerate, and, according to Bernoulli effect, when liquid speed is accelerated, the pressure on the interface of object and fluid contact can reduce, otherwise pressure can increase.So after the speed that mud flows through at shell is accelerated, the pressure that mud causes shell also can correspondingly reduce, from another angle, can say the anti-high pressure ability that has strengthened to a certain extent shell, thereby improve stability and the reliability of this electricity generating device under the mud pressure environment.Because the electricity generating device that has adopted the spindle shell has enough anti-high pressure abilities, therefore can not need again topping up force feed internally to resist the suffered mud pressure of shell, be that its inside can not adopt hydraulic balance system, and when the electricity generating device in-discard after the hydraulic oil of the outside mud pressure of balance, electricity generating device inside has become the air cavity from oil cavity, the resistance that hydraulic oil forms live axle is eliminated, can alleviate greatly the suffered rotational resistance of live axle, therefore the rotating speed of live axle is significantly promoted, thereby significantly improve the generating efficiency of this electricity generating device, realized providing a kind of high-performance, the down-hole slurry electricity generating device of Electricity Generation.
The accompanying drawing explanation
Utilize accompanying drawing to be described further the application, but the embodiment in accompanying drawing does not form any restriction to the application, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of down-hole slurry electricity generating device of the application.
Reference character:
The 1-turbine,
The outer coupled magnets of 2-,
Coupled magnets in 3-,
The 4-live axle,
The 5-bearing,
The 6-generator amature,
The 7-electricity generator stator coil,
The 8-shell,
The 9-drill collar,
The 10-flow guide sleeve,
The 11-centre fastener,
12-the first turbine sliding bearing,
13-the second turbine sliding bearing,
The 14-spaghetti,
The 15-wire,
The 16-tenminal block.
Embodiment
With the following Examples the application is further described.
A kind of down-hole slurry electricity generating device, as shown in Figure 1, comprise shell 8, be arranged on shell 8 outsides turbine 1, be arranged on outer coupled magnets 2 on turbine 1, be arranged on the live axle 4 of shell 8 inside, be arranged on live axle 4 and the interior coupled magnets 3 corresponding with the position of outer coupled magnets 2, with the coaxial generator be connected of interior coupled magnets 3, described generator comprises again generator amature 6 and electricity generator stator coil 7, and electricity generator stator coil 7 is corresponding and concentric with the axial position of generator amature 6.Generator amature 6 is pasted and fixed on live axle 4, live axle 4 is being supported by two bearings 5, generator and interior coupled magnets 3 be coaxial to be connected and to be specially interior coupled magnets 3 and all to be arranged on live axle 4 with generator amature 6, be arranged so that like this transmission efficiency is guaranteed, can effectively guarantee the efficiency of electricity generating device.Outer coupled magnets 2 is pasted and fixed on turbine 1, and interior coupled magnets is to adopt to be fixed in the method for paste on live axle 4 too, and certainly, its means of fixation is not limited to paste.The first turbine sliding bearing 12 and the second turbine sliding bearing 13, the second turbine sliding bearings 13 that on turbine 1 and shell 8 outsides are respectively arranged with the friction that slides over each other are supporting turbine 1.Because the first turbine sliding bearing 12 contacts for sliding friction with the second turbine sliding bearing 13, and the drilling fluids such as when work and mud contact, easily wearing and tearing, the first turbine sliding bearing 12 and the second turbine sliding bearing 13 all adopt high hard material manufacture, have high wear resistance.Whole electricity generating device is arranged in the drill collar 9 of tubulose, and most critical, the profile of shell 8 is arranged to spindle.
The application's electricity generating device, in order to realize contactless transmission of power, still adopt the magnetic driver system, makes electricity generating device can cancel movable sealing structure, makes structure more reliable.And, in order to improve the anti-high pressure ability of electricity generating device, the shell of electricity generating device being designed to spindle, suffered resistance when design can effectively reduce slurry flows and crosses shell like this, allow the electricity generating device running more smoothly; Owing to having reduced resistance, therefore the speed that mud flows through at the shell of generator also can be accelerated, and according to Bernoulli effect, after the speed that mud flows through at shell is accelerated, the pressure that mud causes shell also can correspondingly reduce, thereby has improved stability and the reliability of this electricity generating device under the mud pressure environment.Because the electricity generating device that has adopted the spindle shell has enough anti-high pressure abilities, therefore can not need again topping up force feed internally to resist the suffered mud pressure of shell, be that its inside can not adopt hydraulic balance system, and when the electricity generating device in-discard after the hydraulic oil of the outside mud pressure of balance, electricity generating device inside has become the air cavity from oil cavity, the resistance that hydraulic oil forms live axle is eliminated, can alleviate greatly the suffered rotational resistance of live axle, therefore the rotating speed of live axle is significantly promoted, thereby significantly improve the generating efficiency of this electricity generating device, realized providing a kind of high-performance, the down-hole slurry electricity generating device of Electricity Generation.
Simultaneously, in order further to improve the reliability of the application's electricity generating device, also be provided with the flow guide sleeve 10 of the blade for guiding mud tangential impact turbine 1 on this electricity generating device, flow guide sleeve 10 can not only guide and stable slurry flows, and can increase the speed of the mud impulse turbine 1 that flows, can improve the efficiency of electricity generating device.
The application's electricity generating device is equipped with centre fastener 11 at the end away from flow guide sleeve 10, centre fastener 11 and flow guide sleeve 10 are fixed in drill collar 10, thereby make this electricity generating device be fixedly installed in drill collar 9, electricity generating device is fixed and guarantees that it can not rotate with the rotation of turbine, affects its stability.
In order to expand the function of this electricity generating device, live axle 4 is arranged to hollow shaft, the spaghetti 14 that so just can run through live axle 4 in the setting of the axle center of live axle 4 is for passing through wire 15, and spaghetti 14 passes from live axle 4 axle center hollow spaces, with live axle 4, does not contact.Shell 8 both ends of the surface are provided with tenminal block 16 and by these two tenminal blocks 16, shell 8 are sealed, and shell 8 inside are atmospheric pressure sealed, and wire 15 is communicated with the tenminal block 16 at these two ends through spaghetti 14.The electricity that can produce this electricity generating device by tenminal block 16 outputs to external circuit; The tenminal block 16 that external equipment also can be connected to the other end through wire 15 by the tenminal block 16 of an end is realized carrying out the electronic circuit docking with the external equipment of the other end, makes this electricity generating device can be arranged on easily the arbitrary position in the downhole drill system.
For allowing electricity generating device can continue reliable work, in electricity generating device, also be provided with for breaking down at this electricity generating device or standby high-temperature battery during stall.
Need to propose, for saving space, outer coupled magnets 2 and interior coupled magnets 3 in this electricity generating device are permanent magnet.
Finally should be noted that; above embodiment is only in order to illustrate the application's technological scheme; but not to the restriction of the application's protection domain; although with reference to preferred embodiment, the application has been done to explain; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the application's technological scheme, and not break away from essence and the scope of present techniques scheme.
Claims (10)
1. a down-hole slurry electricity generating device, be arranged in drill collar, it comprises shell, be arranged on the turbine of housing exterior, be arranged on outer coupled magnets on turbine, be arranged on the live axle of enclosure, be arranged on live axle and the interior coupled magnets corresponding with the position of outer coupled magnets, with the coaxial generator be connected of described interior coupled magnets, it is characterized in that: the profile of described shell is arranged to spindle.
2. a kind of down-hole slurry electricity generating device according to claim 1, is characterized in that: the flow guide sleeve that also comprises the blade for guiding the described turbine of mud tangential impact.
3. a kind of down-hole slurry electricity generating device according to claim 2, it is characterized in that: at the end away from flow guide sleeve, centre fastener is installed, described centre fastener and described flow guide sleeve are fixed in again described drill collar, thereby make this electricity generating device be fixedly installed in described drill collar.
4. a kind of down-hole slurry electricity generating device according to claim 1, it is characterized in that: be respectively arranged with the first turbine sliding bearing and the second turbine sliding bearing of the friction that slides over each other on described turbine with described housing exterior, described the second turbine sliding bearing is supporting described turbine.
5. a kind of down-hole slurry electricity generating device according to claim 1, it is characterized in that: described outer coupled magnets is pasted and fixed on described turbine, and described interior coupled magnets is pasted and fixed on described live axle.
6. a kind of down-hole slurry electricity generating device according to claim 1, it is characterized in that: described outer coupled magnets and described interior coupled magnets are permanent magnet.
7. a kind of down-hole slurry electricity generating device according to claim 1, it is characterized in that: described live axle is hollow shaft.
8. a kind of down-hole slurry electricity generating device according to claim 7, it is characterized in that: the axle center of described live axle is provided with the spaghetti that runs through described live axle, and described spaghetti does not contact with described live axle, in described spaghetti, is installed with wire.
9. a kind of down-hole slurry electricity generating device according to claim 8, it is characterized in that: described shell both ends of the surface are provided with tenminal block and by described tenminal block, described shell are sealed, described enclosure is atmospheric pressure sealed, and the described tenminal block at two ends is communicated with by described wire.
10. a kind of down-hole slurry electricity generating device according to claim 1 is characterized in that: also be provided with for breaking down at this electricity generating device or standby high-temperature battery during stall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310361034.9A CN103470433B (en) | 2013-08-19 | 2013-08-19 | A kind of underground mud power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310361034.9A CN103470433B (en) | 2013-08-19 | 2013-08-19 | A kind of underground mud power generation device |
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| Publication Number | Publication Date |
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| CN103470433A true CN103470433A (en) | 2013-12-25 |
| CN103470433B CN103470433B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310361034.9A Active CN103470433B (en) | 2013-08-19 | 2013-08-19 | A kind of underground mud power generation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701259A (en) * | 2013-12-27 | 2014-04-02 | 东营市创元石油机械制造有限公司 | Underground magnetic coupling turbine power cantilever type alternating current generator |
| CN108119293A (en) * | 2016-11-26 | 2018-06-05 | 中国石油天然气股份有限公司 | Underground power generation device |
| CN113328602A (en) * | 2021-05-25 | 2021-08-31 | 四川天源宏创科技有限公司 | High-power slurry generator for downhole tool |
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| JPH0422766A (en) * | 1990-05-17 | 1992-01-27 | Sekiyu Kodan | Turbine generator with speed control mechanism |
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| CN201078306Y (en) * | 2007-07-10 | 2008-06-25 | 武汉海阔科技有限公司 | Down-hole slime pulp turbo generator |
| CN101725338A (en) * | 2008-10-15 | 2010-06-09 | 中国石化集团胜利石油管理局钻井工艺研究院 | Underground generation device |
| CN202545099U (en) * | 2012-04-27 | 2012-11-21 | 中国石油集团西部钻探工程有限公司 | Turbine driving type downhole mud generator |
| CN202545098U (en) * | 2012-03-19 | 2012-11-21 | 中国石油天然气集团公司 | Downhole turbine generator system |
| CN203515937U (en) * | 2013-08-19 | 2014-04-02 | 广东普洛测控科技有限公司 | Underground slurry electricity generation device |
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2013
- 2013-08-19 CN CN201310361034.9A patent/CN103470433B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0422766A (en) * | 1990-05-17 | 1992-01-27 | Sekiyu Kodan | Turbine generator with speed control mechanism |
| CN201013526Y (en) * | 2007-03-01 | 2008-01-30 | 中国海洋石油总公司 | Down-hole turbogenerator |
| CN201078306Y (en) * | 2007-07-10 | 2008-06-25 | 武汉海阔科技有限公司 | Down-hole slime pulp turbo generator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701259A (en) * | 2013-12-27 | 2014-04-02 | 东营市创元石油机械制造有限公司 | Underground magnetic coupling turbine power cantilever type alternating current generator |
| CN103701259B (en) * | 2013-12-27 | 2015-12-23 | 东营市创元石油机械制造有限公司 | A kind of down-hole magnetic coupling turbine power cantilever type alternating current generator |
| CN108119293A (en) * | 2016-11-26 | 2018-06-05 | 中国石油天然气股份有限公司 | Underground power generation device |
| CN108119293B (en) * | 2016-11-26 | 2020-01-03 | 中国石油天然气股份有限公司 | Underground power generation device |
| CN113328602A (en) * | 2021-05-25 | 2021-08-31 | 四川天源宏创科技有限公司 | High-power slurry generator for downhole tool |
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| CN103470433B (en) | 2016-06-22 |
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