CN105553208B - High-power piston type underground pulse generating unit - Google Patents
High-power piston type underground pulse generating unit Download PDFInfo
- Publication number
- CN105553208B CN105553208B CN201610104774.8A CN201610104774A CN105553208B CN 105553208 B CN105553208 B CN 105553208B CN 201610104774 A CN201610104774 A CN 201610104774A CN 105553208 B CN105553208 B CN 105553208B
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- CN
- China
- Prior art keywords
- stator
- rotor
- anticreep
- framework
- generating unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Abstract
The invention discloses a kind of high-power piston type underground pulse generating unit, including middle body case, guide pin bushing, generator, bottom body, electromagnet, control valve, swash plate, plunger pump, piston, push rod body, magnetic axis body, main valve, pump block, center oil pipe etc., wherein, generator includes rotor fixed disk, rotor yoke, rotor fixed disk, NS poles tile-type magnet steel, anticreep framework, stator holder, stator skeleton, the joint face of stator skeleton and stator holder is formed with the storage glue groove of annular, the rotor yoke, anticreep framework and stator skeleton are coaxially disposed, multiple grooves are uniformly offered on stator skeleton, high temperature enamel-covered wire winding is provided with groove.The present invention can keep original center tubing assembly apparent size constant by radial distribution formula structure, so that reduce center oil pipe peripheral element is again designed as this, is easy to repair and installs, stationarity is good, can improve generator power.
Description
Technical field
The present invention relates to a kind of pulse generating unit, and in particular to a kind of high-power piston type underground pulse generating unit.
Background technology
At present, as the continuous exploration of oil gas field both domestic and external, hole condition become increasingly complex, well depth also constantly increases, respectively
Gas Company is also more and more for the geologic parameter demand of well logging, and this requirement also to oil well logging and logger is also more next
Higher, domestic and international most enterprise, in order to obtain more geologic parameters, be MWD increases gamma, resistivity module, and these moulds
Block, which wants normal work, needs battery to be powered for it, but lithium battery can only use the service life of hundreds of hours, also has its right
Environment it is seriously polluted, battery power supply system is difficult to meet environmental requirement, but the generator of current generator center oil pipe
Power it is relatively low can not normal table power for gamma, nearly drill bit and resistivity instrument.So typically use magneto
These instruments are powered, the advantage of magneto has：Simple in construction, reliable, small volume, light weight, loss is small,
Efficiency high, and the existing magneto applied in pulse generating unit generally tray type structure, such generated output
Limited size is in the relative position relation of the rotor of generator（Magnetic gap size i.e. between rotor, the smaller magnetic induction of magnetic gap is strong
Degree is bigger, and the bigger induction of magnetic gap is smaller, and generated energy is also just smaller, and wants increase generated energy it is required that the body of its magnet steel
Product increase, the enamel-cover linear diameter increase of coil, however, this require that the volume of generator will be significantly increased, can make generator
The increase of power at double）, so that electric generator structure volume mass is also significantly increased so that the input capability of magnetic coupling
Also to increase therewith, thus have influence on all peripheral products, add product use cost.Certain company of the current country is
High-power generator pulser is developed, its generator uses conventional squirrel-cage silicon steel chip generator, and power is 30W
Left and right, yet with its mouse cage type structure limitation result in product locally extend about 100mm or so in the axial direction,
So have to redesign the peripheral element and flow cartridge components of its product so that instrument is without general mutual
Transsexual, which also limits the dispensing of the market of instrument, the secondary design again of a large amount of periphery products has had a strong impact on the stability of instrument, no
By in intensity or in structure.
The content of the invention
The defect that the purpose of the present invention is present aiming at prior art passes through radial distribution there is provided one kind is rational in infrastructure
The center tubing assembly apparent size that formula structure can keep original is constant, so as to reduce being again designed as center oil pipe peripheral element
This, is easy to repair and installs, stationarity is good, can improve the high-power piston type underground pulse generating unit of generator power.
Its technical scheme is：High-power piston type underground pulse generating unit, including for installing the centre of magnetic axis body
Body case, the threaded one end of the middle body case, which is connected with guide pin bushing, the guide pin bushing, is provided with generator, the guide pin bushing it is another
Threaded one end is connected with provided with the electromagnet electrically connected with driver in bottom body, the bottom body, the generator
It is provided with by electromagnet to switch the control valve of oil leak hole in centre bore, the end of the magnetic axis body is fixedly connected with tiltedly
Disk, the swash plate is connected by bearing with plunger pump, and the front end of the plunger pump is provided with the piston for being used for being moved in tip-lever support,
The piston is connected with push rod body, is additionally provided with the plunger pump for controlling passage switching between piston and magnetic axis body
Main valve, the tip-lever support is connected with middle body case by pump sleeve, and center oil pipe is connected between the control valve and main valve,
The center oil pipe is located in magnetic axis body, and the generator includes the rotor fixed disk being connected with magnetic axis body threaded one end,
The end face of the rotor fixed disk is fixedly connected with rotor yoke, the rotor yoke and rotor fixed disk interference fits, the rotor
The inner surface of yoke is evenly distributed with multiple NS poles tile-type magnet steel, and the NS poles tile-type magnet steel is installed in inside embedded rotor yoke
On anticreep framework, the end of the bottom body is fixed with stator holder, and the end of the stator holder is fixed with
Positioned at the stator skeleton of anticreep lower portion, the joint face of the stator skeleton and stator holder is formed with the storage glue of annular
Groove, the rotor yoke, anticreep framework and stator skeleton are coaxially disposed, and multiple grooves are uniformly offered on the stator skeleton, described
High temperature enamel-covered wire winding is provided with groove.
The anticreep framework is bell-mouth structure of air, and multiple NS poles tile-type magnet steel coordinate with anticreep framework to be embedded.
The inner side of the anticreep framework is provided with raised step, the step and phase screens at rotor yoke stepped hole.
The high temperature enamel-covered wire winding is wound in the groove of stator skeleton for three-phase is star-like.
The rotor yoke is linked together with rotor fixed disk by multiple cruciate flower screws using identical torque.
The stator skeleton is that force fit is connected with stator holder, and the stator skeleton uses monolithic construction.
The present invention compared with prior art, with advantages below：It is rational in infrastructure, pass through the generating of radial distribution formula structure
Machine is in limited space, especially in the longitudinal direction, can design and be longer than one times of rotor, and such stator rotor is cut
The area for cutting magnetic induction line is bigger, and the induced electromotive force that generator is produced also just more is increased therewith, and this avoid disc type electric machine
Lengthening defect, original center tubing assembly apparent size can be kept constant, so as to reduce center oil pipe peripheral element again
Secondary design cost, and generator power can be improved；By the way that stator to be placed in the inside of rotor, it is easy to repair and installs, it is fixed
Property is good.
Brief description of the drawings
Here is that the present invention is further described in conjunction with the accompanying drawings and embodiments.
Fig. 1 is the structural representation of part in the present invention；
Fig. 2 is the structural representation of part under the present invention；
Fig. 3 is the structure sectional view of generator of the present invention；
Fig. 4 is the structural representation of anticreep framework of the present invention；
In figure：1. magnetic axis body；2. middle body case；3. guide pin bushing；4. bottom body；5. rotor fixed disk；6. rotor yoke；
7.NS poles tile-type magnet steel；8. anticreep framework；9. stator holder；10. stator skeleton；11. storage glue groove；12. groove；13. high temperature lacquer
Envelope curve winding；14. step；15. electromagnet；16. control valve；17. swash plate；18. plunger pump；19. tip-lever support；20. piston；21.
Push rod body；22. main valve；23. pump sleeve；24. center oil pipe.
Embodiment
Reference picture 1- Fig. 4, Fig. 1 and Fig. 2 link together.High-power piston type underground pulse generating unit, including for
The middle body case 2 of magnetic axis body 1 is installed, the threaded one end of middle body case 2, which is connected with guide pin bushing 3, guide pin bushing 3, is provided with generating
Machine, the other end of guide pin bushing 3 is threaded with bottom body 4.Provided with the electromagnet electrically connected with driver in bottom body 4
15, it is provided with by electromagnet 15 to switch the control valve 16 of oil leak hole, the end of magnetic axis body 1 in the centre bore of generator
Swash plate 17 is fixedly connected with, swash plate 17 is connected by bearing with plunger pump 18, being provided with the front end of plunger pump 18 is used in push rod
The piston 20 that move in seat 19, piston 20 is connected with push rod body 21, be additionally provided with plunger pump 18 be used to controlling piston 20 and
The main valve 22 of passage switching between magnetic axis body 1, tip-lever support 19 is connected with middle body case 2 by pump sleeve 23, control valve 16
Center oil pipe 24 is connected between main valve 22, center oil pipe 24 is located in magnetic axis body 1.
Wherein, generator includes rotor fixed disk 5, rotor yoke 6, NS poles tile-type magnet steel 7, anticreep framework 8, stator holder
9th, stator skeleton 10 and high temperature enamel-covered wire winding 13 etc..
Rotor fixed disk 5 links together with the threaded one end of magnetic axis body 1, and end face and the rotor yoke 6 of rotor fixed disk 5 are
Interference fits, interference fits can guarantee that axiality requirement.Rotor yoke 6 uses high performance soft magnetic materials 1J22, material
Largest benefit is stable for the performance of high temperature, and intensity is high, disclosure satisfy that the use of underground.And rotor yoke 6 leads to rotor fixed disk 5
Cross multiple cruciate flower screws to link together using identical torque, can so prevent both from departing from when high speed rotates to separate.
Multiple NS poles tile-type magnet steel 7 are evenly distributed on the inner surface of rotor yoke 6, and anticreep framework 8 stretches into the interior of rotor yoke 6
Portion, due to anticreep framework 8（Titanium alloy material is processed）The design of horn mouth screens is used, NS grades of tile-type magnet steel 7 are replaced
It is put into from outside to inside successively, the inside of rotor yoke 6 is then applied into magnet steel special bonding agent, then by anticreep framework 8 and NS grades of tile-type magnetic
7 one pieces of steel makes rotor to be distributed in the radial direction toward installation in rotor yoke 6, and this design is avoided often in certain degree
The split type installation every magnetic stripe of rule is bothered, and is easily installed.
Stator holder 9 is fixedly mounted on the end of bottom body 4, and the end of stator skeleton 10 and stator holder 9 is consolidated
Fixed, stator skeleton 10 is equally using the processing of 1J22 soft magnetic materials, and the connection of stator skeleton 10 and stator holder 9 is force fit
The design of formula, stator skeleton 10 uses monolithic construction, and monolithic construction avoids the matching requirements that laminated structure is laminated, structure
Simply, assemble easy to maintenance.Also, stator skeleton 10 is arranged on the inside of anticreep framework 8, and rotor yoke 6, the and of anticreep framework 8
Stator skeleton 10 is coaxially disposed, and so forms the structure of outer rotor inner stator, and stator skeleton 10 is being installed with stator holder 9
Afterwards, the joint face of stator skeleton 10 and stator holder 9 forms the storage glue groove 11 of annular, and glue constitutes a ring in storage glue groove 11
The disconnecting prevention structure of shape, the structure ensures efficient combination between the two.Stator skeleton 10 is that high temperature enamel-cover is provided with 9 grooves, groove 12
Line winding 13.High temperature enamel-covered wire winding 13 is wound in the groove 12 of stator skeleton 9 for three-phase is star-like.
Wherein, multiple NS poles tile-type magnet steel 7 coordinate with anticreep framework 8 to be embedded.In the inner side of anticreep framework 8 provided with convex
The step 14 risen, step 14 and phase screens at rotor yoke stepped hole.Magnetic links are avoided when rotated by the one side of anticreep framework 8
Internally come off, the inner side of another aspect anticreep framework 8 is provided with 0.10mm protrusion step 14, after being installed, step 14
Just screens is at the stepped hole of rotor yoke 6, and this design avoids the conventional split type installation every magnetic stripe in certain degree
Trouble, and double anticreep effects can be played, stationarity is good.Its operation principle is：
A, generating：Rotor is rotated at a high speed under the percussion of mud, and pulser inner magnet shaft body 1 is inhaled in rotor magnetic stripe
Rotated under graviational interaction, disk synchronous rotary, the uniform permanent magnet of disk and six stator coils constitute generator, stator coil
Cutting magnetic induction line produces induced electromotive force, and alternating current is converted into direct current through driver rectification；
B, build the pressure：Driver is the power supply control valve armature of pulser electric magnet 15, under electromagnetic attraction effect, control valve 16
Close（Plunger pump is now come from, the oil of main valve can not release）, rotated simultaneously in magnetic axis body 1, the synchronous rotary of swash plate 17, plunger
The plunger of pump 18 ceaselessly moves reciprocatingly, and the oily check valve through plunger at the rear portion of plunger pump 18 is ceaselessly pumped into plunger pump 18
Before, the oil pressure under piston 20 is constantly raised, and when the oil pressure under piston 20 is more than mud pressure, piston 20 rises, mushroom head and limit
Formed and built the pressure at stream ring, send positive pulse signal, when piston 20 rises to the discharge orifice place value of tip-lever support 19, signal reaches most
By force；
C, pressure release：When driver stops powering to the electromagnet 15 of pulser, electromagnet 15 loses magnetic force, control valve 16 dozens
Aerial drainage is opened, now the main valve plug two ends of main valve 22 form moment pressure difference, oil pressure counter main spool spring elastic force opens main valve plug, it is main
Valve 22 is opened completely, and oil passes through discharge orifice draining, and 20 times oil pressure of piston decline, and mushroom head declines under mud pressure effect.
The generator of tray type structure is changed to the generator of radial distribution formula structure, the rotor of the generator by the present invention
To be distributed in the radial direction, stator is placed in the structure of the inside, i.e. outer rotor inner stator of rotor, footpath for the ease of maintenance assembling
To distributed electric generator structure in limited space, especially in the longitudinal direction, it can design and be longer than one times fixed and turn
Son, the area of the cutting magnetic induction line of such stator rotor is bigger, and the induced electromotive force that such generator is produced is also just therewith more
Increase, this avoid the defect of the lengthening of disc type electric machine, you can to ensure the extension consistency of pulser, reduce center oil pipe
Peripheral element is again designed as this.
The present invention is not limited to above-mentioned embodiment, in the knowledge that those skilled in the art possess, may be used also
To be made a variety of changes on the premise of present inventive concept is not departed from, the content after change still falls within protection scope of the present invention.
Claims (6)
1. high-power piston type underground pulse generating unit, including for installing the middle body case of magnetic axis body, the centre
The threaded one end of body case, which is connected with guide pin bushing, the guide pin bushing, is provided with generator, and the other end of the guide pin bushing is threaded with
Bottom body, it is characterised in that：Provided with the electromagnet electrically connected with driver, the center of the generator in the bottom body
It is provided with by electromagnet to switch the control valve of oil leak hole in hole, the end of the magnetic axis body is fixedly connected with swash plate, institute
State swash plate to be connected with plunger pump by bearing, the front end of the plunger pump is provided with the piston for being used for moving in tip-lever support, described
Piston is connected with push rod body, and the master for controlling passage switching between piston and magnetic axis body is additionally provided with the plunger pump
Valve, the tip-lever support is connected with middle body case by pump sleeve, and center oil pipe, institute are connected between the control valve and main valve
Center oil pipe is stated in magnetic axis body, the generator includes the rotor fixed disk being connected with magnetic axis body threaded one end, institute
The end face for stating rotor fixed disk is fixedly connected with rotor yoke, the rotor yoke and rotor fixed disk interference fits, the rotor yoke
Inner surface be evenly distributed with multiple NS poles tile-type magnet steel, the NS poles tile-type magnet steel is installed in anti-inside embedded rotor yoke
On de- framework, the end of the bottom body is fixed with stator holder, and the end of the stator holder is fixed with position
In the stator skeleton of anticreep lower portion, the joint face of the stator skeleton and stator holder is formed with the storage glue groove of annular,
The rotor yoke, anticreep framework and stator skeleton are coaxially disposed, and are uniformly offered on the stator skeleton in multiple grooves, the groove
Provided with high temperature enamel-covered wire winding.
2. high-power piston type underground pulse generating unit according to claim 1, it is characterised in that：The anticreep framework
For bell-mouth structure of air, multiple NS poles tile-type magnet steel coordinate with anticreep framework to be embedded.
3. high-power piston type underground pulse generating unit according to claim 2, it is characterised in that：The anticreep framework
Inner side provided with raised step, the step and phase screens at rotor yoke stepped hole.
4. high-power piston type underground pulse generating unit according to claim 1, it is characterised in that：The high temperature enamel-cover
Line winding is wound in the groove of stator skeleton for three-phase is star-like.
5. high-power piston type underground pulse generating unit according to claim 1, it is characterised in that：The rotor yoke with
Rotor fixed disk is linked together by multiple cruciate flower screws using identical torque.
6. high-power piston type underground pulse generating unit according to claim 1, it is characterised in that：The stator skeleton
It is that force fit is connected with stator holder, the stator skeleton uses monolithic construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104774.8A CN105553208B (en) | 2016-02-26 | 2016-02-26 | High-power piston type underground pulse generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104774.8A CN105553208B (en) | 2016-02-26 | 2016-02-26 | High-power piston type underground pulse generating unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105553208A CN105553208A (en) | 2016-05-04 |
| CN105553208B true CN105553208B (en) | 2017-10-13 |
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ID=55832199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610104774.8A Active CN105553208B (en) | 2016-02-26 | 2016-02-26 | High-power piston type underground pulse generating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105553208B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536217A (en) * | 2012-03-12 | 2012-07-04 | 中天启明石油技术有限公司 | Positive pulse device for slurry under shaft |
| CN103015989A (en) * | 2012-12-26 | 2013-04-03 | 西安思坦仪器股份有限公司 | Downhole continuous wave mud pulse generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2952654C (en) * | 2014-06-25 | 2018-01-23 | Evolution Engineering Inc. | A flow bypass sleeve for a fluid pressure pulse generator of a downhole telemetry tool |
-
2016
- 2016-02-26 CN CN201610104774.8A patent/CN105553208B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536217A (en) * | 2012-03-12 | 2012-07-04 | 中天启明石油技术有限公司 | Positive pulse device for slurry under shaft |
| CN103015989A (en) * | 2012-12-26 | 2013-04-03 | 西安思坦仪器股份有限公司 | Downhole continuous wave mud pulse generator |
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| Publication number | Publication date |
|---|---|
| CN105553208A (en) | 2016-05-04 |
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