CN106640057A - Electricity self-generating type continuous wave positive pulse generator achieving automatic adjustment of carrier frequency - Google Patents
Electricity self-generating type continuous wave positive pulse generator achieving automatic adjustment of carrier frequency Download PDFInfo
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- CN106640057A CN106640057A CN201510717276.6A CN201510717276A CN106640057A CN 106640057 A CN106640057 A CN 106640057A CN 201510717276 A CN201510717276 A CN 201510717276A CN 106640057 A CN106640057 A CN 106640057A
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- pulser
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- motor
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- pulse generator
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- 230000005611 electricity Effects 0.000 title 1
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 238000010248 power generation Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 3
- 241001449342 Chlorocrambe hastata Species 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 1
- 238000009499 grossing Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides an electricity-self-generating type continuous-wave positive-pulse generator achieving automatic adjustment of carrier frequency. The electricity-self-generating type continuous-wave positive-pulse generator achieving automatic adjustment of carrier frequency comprises a stator and a rotor which are used for generating mud pulse signals, an electromagnetic clutch and a switchover circuit which achieve switchover of an electric generator and a motor, an inverter and driving circuit, a rectification and smoothing circuit for outputting signals of the electric generator, a rechargeable battery pack used for providing initial energy for the motor and storing energy, an oil injection hole used for sealing of a pulser circuit and transmission parts, a balance piston for balancing down-hole pressure and the like. The carrier-wave fundamental frequency of a pulser automatically varies with the discharging quantity of drilling fluid, the rotor of the pulser is in a rotary state all the time, and the pulser is provided with an electric generator so that the pulser can independently work; the speed variation range of the pulser is small, the efficiency and accuracy of datum transmission are improved.
Description
Technical field：
The invention belongs to petroleum drilling engineering technical field, the device of more particularly to a kind of downhole data earthward high-speed transfer.
Background technology：
The advantage of continuous wave slurry pulse generator is that transmission speed is fast, and the operation principle of continuous wave mud-pulse continuous-wave generator is：Continuous pressure ripple signal is produced by changing the relative position of rotor and stator over-current section, the occurring mode of current mud-pressure pulses has two kinds of rotary valve and shear valve.No matter any continuous pulse generator, should all include the parts such as continuous wave impulse generating unit, motor and driving means, control circuit and pressure balance module and seal modules.For the continuous pulse generator of rotary valve type, rotor is continuously rotated in Motor drive lower edge fixed-direction, and with stator throttling action is produced.And in shearing valve type continuous-wave generator, motor-driven rotor reciprocally swinging between the maximum, minimum flow area that stator is formed, rectilinear oscillation produces throttling action.
At present correlation technique present situation both domestic and external is：" the sinusoidal pressure wave producer being used in measurement while drilling instrument of the invention of Schlumberger companies of the U.S.（Sinusoidal pressure pulse
generator for measurement while drilling tool）" and " for the method and system that downhole data is earthward transmitted（Method and system for
wellbore communication）" disclose a kind of continuous wave mud pulse signal generator based on continuous rotary valve；The invention of Baker Hughes companies of the U.S. " for mud-pulse data remote oscillating shear valve（Oscillating shear valve
for mud pulse telemetry）" and " for the down-hole pulse signal generator of mud-pulse data remote（Downlink pulser
for mud pulse telemetery）", disclose a kind of continuous wave slurry pulse generator for based on the work of shear oscillation principle.The difference of two kinds of continuous wave pulsers is only in that the forms of motion of pulser rotor and follow-up impulse modulation and decoding process.
Contrast with external patented technology, the improvement of domestic continuous wave pulser patent is concentrated mainly on：The valve design of pulser, sealing and the mechanical structure portion such as it is driven, does not retrieve the patent in terms of pulser control mode, power supply mode etc..Above patent has in common that：1. by Motor drive, the working method of rotor is divided into continuous rotation and two kinds of forms of shear oscillation to pulser rotor；2. from down-hole turbogenerator and down-hole battery group, the working time is subject to certain restrictions the power supply of motor with condition of work；3. the operation principle of pulser is essentially identical, is realized by the circulation area of periodic variation drilling fluid.The difference of above patent is mainly manifested in：1. pulser rotor structure；The coding and decoding process of the 2. signal modulation mode of pulser rotor, and underground signal correspondingly；3. machine driving and Sealing Technology.
The content of the invention：
The purpose of the present invention is in view of the shortcomings of the prior art, to provide a kind of self-power generation type continuous wave positive pulse generator for the quickly and accurately carrier frequency adjust automatically of terrestrial system high-speed transfer of downhole data in drilling process.
Its technical scheme is：
A kind of self-power generation type continuous wave positive pulse generator of carrier frequency adjust automatically, including：Guide shell and the stator, the rotor that are placed in guide shell, and compressive sealed cylinder and shaft coupling, decelerator, the motor being arranged in compressive sealed cylinder, wherein rotor and shaft coupling drive connection；Described shaft coupling is electromagnetic coupling, and be respectively provided with the two ends of decelerator, electromagnetic clutch is connected with rotor and electromagnetic coupling connection end, the motor is equivalent to a generator when rotor rotates, and inversion is additionally provided with compressive sealed cylinder with drive circuit, the rectification of alternator output signal and filter circuit, main control board and rechargeable battery pack；It is sequentially connected by cable between motor, inversion and drive circuit, the rectification of alternator output signal and filter circuit, main control board, rechargeable battery pack.
Such scheme also includes：
Oil filler point and dummy piston are provided with compressive sealed cylinder.Guide shell top is provided with pulser spear-head, periphery and is provided with sealing ring, and in compressive sealed cylinder lower end the cable connector with cable connection is provided with.
The pulser of the present invention shows the following aspects with the main difference of existing two kinds of slurry pulsators：
Pulses generation mode is entirely different, the pulser mud pulse signal of the present invention is present always, the process of data transfer actually carries out the modulated process of speedup deceleration on the basis of existing pulse signal, the carrier wave fundamental frequency of pulser is changed automatically with the displacement size of drilling fluid, the rotor of pulser is constantly in rotation status, but all velocity variations increase and decrease on the basis of existing speed, pulser speed variation is little, the dynamic process of pulser spinner velocity regulation can be effectively improved, improve the efficiency and precision of data transfer, pulser speed variation is little, the power of needs is less, power of motor is eligible smaller, be conducive to down-hole energy-conservation.
The pulser control motor of the present invention runs in rotating speed and the four-quadrant of torque, you can to realize the signal modulation of the continuous rotation mode of Schlumberger, it is also possible to realize the signal modulation of Baker Hughes companies oscillatory shear mode.
The pulser of the present invention carries generator, and pulser can be made to work independently, and eliminates and is individually for the downhole generator that pulser is powered, and system effectiveness is high；Battery pack working time limited problem is eliminated simultaneously.And the present invention carries generator and rechargeable battery pack, the dependence to down-hole power has both been reduced, it might even be possible to provide power supply to other downhole tools
The pulser of the present invention respectively between rotor and decelerator, used two electromagnetic couplings between motor and decelerator, what the use of electromagnetic coupling made resistance to compression cylinder is thoroughly sealed to possibility, is conducive to circuit safety；The use of electromagnetic coupling is filtered to excessive moment of torsion with too high rotating speed, is conducive to the safety of motor itself.
It is comprehensive the above, the beneficial effect of continuous wave pulser of the present invention is：Not there is a possibility that drilling fluid circulation passage block, pulser it is practical；The carrier wave fundamental frequency of pulser is changed automatically with the displacement size of drilling fluid, and the rotor of pulser is constantly in rotation status；Pulser carries generator, and pulser can be made to work independently；Pulser speed variation is little, improves the efficiency and precision of data transfer.
Description of the drawings：
Fig. 1 is the overall structure diagram of continuous wave slurry pulse generator.In figure：
Specific embodiment：
In conjunction with Figure of description 1, the invention will be further described.
Accompanying drawing 1 represents the general structure schematic diagram of continuous wave pulser, the stator in figure（3）With rotor（4）Blade quantity can be identical, or different.Patent preferred rotor of the present invention（4）Blade and stator（3）Blade identical structure, wherein：Rotor（4）Blade can adopt multiple structural forms, such as：The quantity of blade can be 1 ~ 8 any number, and its version can also carry out the friction loss characteristic that water force is obtained, select square, triangle or other increasingly complex geometries according to different application condition.
Pulser shown in Fig. 1 integrally using key mounting means is sat inside drill collar, is equipped with sealing ring between pulser and drill collar（20）, therefore, drilling mud flows into first guide shell（2）, Jing stators（3）Into inside pulser, stator is then passed through（3）With rotor（4）Between gap, by regularly changing rotor（4）With stator（3）Between circulation area, it is possible in rotor（4）The mud pressure pulse signal for changing according to certain rules is produced in front and back, so as to realize the modulation of downhole data.
When pulser need not carry out signal transmission, by main control board（12）Control electromagnetic clutch（5）Disconnect, electromagnetic clutch（5）It is in（5/501）Position.Rotor（4）Under the impact of drilling mud, with a certain fixed speed rotation being directly proportional to mud displacement, by electromagnetic coupling（6）Drive planet gear type decelerator（7）, electromagnetic coupling（8）With motor（9）Rotate together, motor now（9）It is equivalent to a generator（9）, generator（9）Output by rectification and filter circuit（11）Processed, rectification and filter circuit（11）Output, in master control borad（12）Control under be rechargeable lithium ion batteries group（13）It is charged, realizes the storage of electric energy.
When pulser needs to carry out data transmission, by master control borad（12）Control electromagnetic clutch（5）Closure, electromagnetic clutch（5）It is in（5/502）Position.In master control borad（12）, inversion and drive circuit（10）Control under, rotor（4）By motor（9）Jing electromagnetic couplings（8）, decelerator（7）, electromagnetic coupling（6）Rotation is driven, in rotor（4）With stator（3）Between mud circulation area Changing Pattern by rotor（4）Or motor（9）Rotating rule determining such that it is able to produce the mud pulse signal of row rule, complete the modulated process of downhole data.Mud pulse signal reaches ground drill standpipe via the mud fluid column inside drill collar/drilling rod, realizes the transmission of down-hole terrestrial system data, and decoded back is carried out to downhole data with solution code system by ground detection.Motor（9）And master control borad（12）Power supply be all from rechargeable battery pack（13）, realize the utilization of storage electric energy.
In Fig. 1, main control board（12）Function include：1. motor is realized（9）With generator（9）Switching；2. inversion and drive circuit are realized（10）, rectification and filter circuit（11）Between control；3. electromagnetic clutch is realized（5）Control；4. realize to battery pack（13）Charging and charge protection.Charge protection can be realized by special hardware circuit, it is also possible to which the detection of combined charge electric current is realized by software.Charge and the effect of charge protector is in the time period that need not carry out data is activation in pulser, to down-hole high temperature Li-ion batteries piles（13）It is charged, replaces the disposable High Temperature Lithium Cell being widely used at present.
Cable connector（14）Realize the connection of continuous wave pulser and other underground equipments, oil filler point（15）With dummy piston（16）Application, on the one hand realize the sealing of control unit, mechanical transmission component and drilling fluid and isolate, cooling and lubrication are on the other hand played to transmission mechanism.
Electromagnetic coupling A（6）Effect be：When mud displacement mutation causes rotor（4）Speed it is excessive or too small when, and motor/generator（9）In Generator Status, decelerator is protected（7）Velocity variations will not be excessive, electronics shaft coupling（6）Rotating speed can realize within the specific limits speed tracing before and after guarantee；Work as motor/generator（9）In electric motor operation state, rotor（4）When there is blocking due to mechanical reason, electromagnetic coupling（6）Motor can be protected（9）It is not in the situation of overcurrent.
Electromagnetic coupling B（8）Effect be：Work as decelerator（7）During failure, to motor（9）Protected, eliminated because of the possibility of motor rotation blockage motor damage；Additionally, when motor is used as generator（9）When, the excessive velocity perturbation of decelerator is eliminated, to rotor（4）Big velocity perturbation has a filter action with big mud displacement mutation, controls electric generator/electric motor（9）In rational speed and torque range.
Claims (3)
1. the self-power generation type continuous wave positive pulse generator of a kind of carrier frequency adjust automatically, including：Guide shell and the stator, the rotor that are placed in guide shell, and compressive sealed cylinder and shaft coupling, decelerator, the motor being arranged in compressive sealed cylinder, wherein rotor and shaft coupling drive connection；It is characterized in that：Described shaft coupling is electromagnetic coupling, and be respectively provided with the two ends of decelerator, electromagnetic clutch is connected with rotor and electromagnetic coupling connection end, the motor is equivalent to a generator when rotor rotates, and inversion is additionally provided with compressive sealed cylinder with drive circuit, the rectification of alternator output signal and filter circuit, main control board and rechargeable battery pack；It is sequentially connected by cable between motor, inversion and drive circuit, the rectification of alternator output signal and filter circuit, main control board, rechargeable battery pack.
2. the self-power generation type continuous wave positive pulse generator of carrier frequency adjust automatically according to claim 1, it is characterised in that：Oil filler point and dummy piston are provided with compressive sealed cylinder.
3. the self-power generation type continuous wave positive pulse generator of carrier frequency adjust automatically according to claim 1 and 2, it is characterised in that：Guide shell is provided with pulser spear-head and sealing ring, and in compressive sealed cylinder lower end the cable connector with cable connection is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717276.6A CN106640057A (en) | 2015-10-30 | 2015-10-30 | Electricity self-generating type continuous wave positive pulse generator achieving automatic adjustment of carrier frequency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510717276.6A CN106640057A (en) | 2015-10-30 | 2015-10-30 | Electricity self-generating type continuous wave positive pulse generator achieving automatic adjustment of carrier frequency |
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| CN106640057A true CN106640057A (en) | 2017-05-10 |
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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 |
| CN113482606A (en) * | 2021-05-14 | 2021-10-08 | 西南石油大学 | Underground signal receiving and transmitting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6714138B1 (en) * | 2000-09-29 | 2004-03-30 | Aps Technology, Inc. | Method and apparatus for transmitting information to the surface from a drill string down hole in a well |
| CN201221355Y (en) * | 2008-06-11 | 2009-04-15 | 中国石油集团钻井工程技术研究院 | Continuous wave pressure pulse generator |
| CN202081889U (en) * | 2011-06-10 | 2011-12-21 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Rotary valve type mud pulse generator |
| CN102425411A (en) * | 2011-12-30 | 2012-04-25 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Continuous wave slurry pulse generator |
| CN103827695A (en) * | 2011-09-27 | 2014-05-28 | 哈利伯顿能源服务公司 | Mud powered inertia drive oscillating pulser |
| CN205172568U (en) * | 2015-10-30 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave |
-
2015
- 2015-10-30 CN CN201510717276.6A patent/CN106640057A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6714138B1 (en) * | 2000-09-29 | 2004-03-30 | Aps Technology, Inc. | Method and apparatus for transmitting information to the surface from a drill string down hole in a well |
| CN201221355Y (en) * | 2008-06-11 | 2009-04-15 | 中国石油集团钻井工程技术研究院 | Continuous wave pressure pulse generator |
| CN202081889U (en) * | 2011-06-10 | 2011-12-21 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Rotary valve type mud pulse generator |
| CN103827695A (en) * | 2011-09-27 | 2014-05-28 | 哈利伯顿能源服务公司 | Mud powered inertia drive oscillating pulser |
| CN102425411A (en) * | 2011-12-30 | 2012-04-25 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Continuous wave slurry pulse generator |
| CN205172568U (en) * | 2015-10-30 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave |
Cited By (4)
| 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 |
| CN113482606A (en) * | 2021-05-14 | 2021-10-08 | 西南石油大学 | Underground signal receiving and transmitting device |
| CN113482606B (en) * | 2021-05-14 | 2023-09-22 | 西南石油大学 | Underground signal receiving and transmitting device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20220208 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Geological measurement and Control Technology Research Institute of Sinopec Jingwei Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |
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Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |