CN205172568U - Carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave - Google Patents
Carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave Download PDFInfo
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- CN205172568U CN205172568U CN201520849400.XU CN201520849400U CN205172568U CN 205172568 U CN205172568 U CN 205172568U CN 201520849400 U CN201520849400 U CN 201520849400U CN 205172568 U CN205172568 U CN 205172568U
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Abstract
The utility model provides a carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave, including the stator that is used for producing mud pulse signal and rotor, the rectification that realizes electromagnetic clutch that generator and motor switch and switching circuit, contravariant and drive circuit, dynamo output signal and filter circuit, provide the chargeable call group of primary energy with energy storage, be used for the oil filler point that pulser circuit and drive part sealed and be used for pressure balance's in the pit dummy piston etc. For the motor. The carrier wave base frequency of pulser be automatic the change along with the discharge capacity size of drilling fluid, the rotor of pulser is in rotatory state always, the pulser can make the pulser autonomous working from taking the generator, pulser speed change scope is little, has improved data transmission's efficiency and accuracy.
Description
Technical field:
The utility model belongs to petroleum drilling engineering technical field, particularly relates to the device of a kind of downhole data high-speed transfer earthward.
Background technology:
The advantage of continuous wave slurry pulse generator is that transmission speed is fast, the operating principle of continuous wave mud-pulse continuous-wave generator is: produce continuous pressure ripple signal by changing the relative position of rotor and stator over-current section, the occurring mode of current mud-pressure pulses has rotary valve and shear valve two kinds.No matter any continuous wave impulse generator, all should comprise continuous wave impulse generating unit, motor and drive unit, control circuit and the part such as pressure balance module and seal modules.For rotary valve type continuous wave impulse generator, rotor rotates continuously along fixed-direction under motor drives, and produces throttling action with stator.And in shearing valve type continuous-wave generator, reciprocally swinging between maximum, the minimum flow area that motor-driven rotor is formed at stator, rectilinear oscillation, produces throttling action.
Current correlation technique present situation both domestic and external is: the utility model of Schlumberger company of the U.S. " for the sinusoidal pressure wave producer in measurement while drilling instrument, (Sinusoidalpressurepulsegeneratorformeasurementwhiledrill ingtool) " and " for the method and system that downhole data transmits earthward, (Methodandsystemforwellborecommunication) " a kind of continuous wave mud pulse signal generator based on continuous rotary valve is disclosed, " oscillating shear valve (Oscillatingshearvalveformudpulsetelemetry) for mud-pulse data remote " and " the down-hole pulse signal generator (Downlinkpulserformudpulsetelemetery) for mud-pulse data remote " of the utility model of BakerHughes company of the U.S., discloses a kind of for the continuous wave slurry pulse generator based on the work of shear oscillation principle.The difference of two kinds of continuous wave pulsers is only 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 mainly concentrates on: the valve design of pulser, the mechanical structure portion such as sealing and transmission, do not retrieve the patent in pulser control mode, power supply mode etc.The something in common of above patent is: 1. pulser rotor drives by motor, and the working method of rotor is divided into continuous rotation and shear oscillation two kinds of forms; 2. the power supply of motor is from down-hole turbogenerator and down-hole battery pack, and working time and condition of work are subject to certain restrictions; 3. the operating principle of pulser is substantially identical, is all to be realized by the circulation area of periodic variation drilling fluid.The difference of above patent is mainly manifested in: 1. pulser rotor structure; 2. the signal madulation mode of pulser rotor, and the encoding and decoding mode of underground signal correspondingly; 3. machine driving and Sealing Technology.
Utility model content:
The purpose of this utility model is the deficiency existed for prior art, provides a kind of carrier frequency self-adjusting self-power generation type continuous wave positive pulse generator for the terrestrial system high-speed transfer quickly and accurately of downhole data in drilling process.
Its technical scheme is:
A kind of carrier frequency self-adjusting self-power generation type continuous wave positive pulse generator, comprise: guide shell and the stator, the rotor that are placed in guide shell, and compressive sealed cylinder and be arranged on shaft coupling, reducer, motor in compressive sealed cylinder, its rotor drives with shaft coupling and is connected; Described shaft coupling is electromagnetic coupling, and arrange respectively at the two ends of reducer, electromagnetic clutch is connected with at rotor and electromagnetic coupling link, described motor is equivalent to a generator when rotor rotates, be also provided with inversion and drive circuit, the rectification of alternator output signal and filter circuit, main control board and rechargeable battery pack in compressive sealed cylinder; Motor, inversion are connected by cable with between filter circuit, main control board, rechargeable battery pack successively with the rectification of drive circuit, alternator output signal.
Such scheme also comprises:
Compressive sealed cylinder is provided with oil filler point and dummy piston.Be provided with pulser spear-head above guide shell, periphery is provided with sealing ring, be provided with in compressive sealed cylinder lower end the cable connector be connected with cable.
The main difference of pulser of the present utility model and existing two kinds of slurry pulsators shows the following aspects:
Pulses generation mode is completely different, pulser mud pulse signal of the present utility model exists always, the process of data transmission is actually the modulated process carrying out speedup deceleration on existing pulse signal basis, the carrier wave fundamental frequency of pulser automatically changes along with the displacement size of drilling fluid, the rotor of pulser is in rotation status always, but all velocity variations all increase and decrease on existing speed basis, pulser speed variation is little, effectively can improve the dynamic process that pulser spinner velocity regulates, improve the efficiency and precision of data transmission, pulser speed variation is little, the power needed is less, power of motor is eligible smaller, be conducive to down-hole energy-conservation.
Pulser of the present utility model controls motor and runs in the four-quadrant of rotating speed and torque, namely can realize the signal madulation of the continuous rotation mode of Schlumberger, also can realize the signal madulation of BakerHughes company oscillatory shear mode.
Pulser of the present utility model carries generator, and pulser can be made to work alone, and eliminating is the downhole generator that pulser is powered separately, and system effectiveness is high; Eliminate battery pack working time limited problem simultaneously.And the utility model carries generator and rechargeable battery pack, both decrease the dependence to down-hole power, even can provide power supply to other downhole tools
Pulser of the present utility model respectively between rotor and reducer, employ two electromagnetic couplings between motor and reducer, 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 excessive moment of torsion and too high rotating speed, is conducive to the safety of motor itself.
Comprehensive the above, the beneficial effect of continuous wave pulser described in the utility model is: the possibility that there is not the blocking of drilling liquid flow circulation passage, pulser practical; The carrier wave fundamental frequency of pulser automatically changes along with the displacement size of drilling fluid, and the rotor of pulser is in rotation status always; Pulser carries generator, and pulser can be made to work alone; Pulser speed variation is little, improves the efficiency and precision of data transmission.
Accompanying drawing illustrates:
Fig. 1 is the overall structure schematic diagram of continuous wave slurry pulse generator.In figure:
Detailed description of the invention:
Now be further described in conjunction with Figure of description 1 pair of the utility model.
Accompanying drawing 1 represents the general structure schematic diagram of continuous wave pulser, and the stator (3) in figure can be identical with rotor (4) blade quantity, also can be different.The structure that the utility model patent preferred rotor (4) blade is identical with stator (3) blade, wherein: rotor (4) blade can adopt various structures form, as: the quantity of blade can be any number of 1 ~ 8, its form of structure also can carry out according to different application condition the friction loss characteristic that water force obtains, and selects square, triangle or other more complicated geometry.
Pulser entirety shown in Fig. 1 adopts seat key mounting means to be arranged on drill collar inside, sealing ring (20) is housed between pulser and drill collar, therefore, first drilling mud flows into guide shell (2), pulser inside is entered through stator (3), then the gap between stator (3) and rotor (4) is flow through, by changing the circulation area between rotor (4) and stator (3) regularly, just can produce the mud pressure pulse signal changed according to certain rules before and after rotor (4), thus realize the modulation of downhole data.
When pulser does not need to carry out Signal transmissions, control electromagnetic clutch (5) by main control board (12) and disconnect, electromagnetic clutch (5) is in the position of (5/501).Rotor (4) is under the impact of drilling mud, rotate with a certain fixed speed be directly proportional to mud displacement, rotated together with motor (9) by electromagnetic coupling (6) drive planet gear type reducer (7), electromagnetic coupling (8), motor (9) is now equivalent to a generator (9), the output of generator (9) is processed by rectification and filter circuit (11), the output of rectification and filter circuit (11), charge for rechargeable lithium ion batteries group (13) under the control of master control borad (12), realize the storage of electric energy.
When pulser needs to carry out data transmission, control electromagnetic clutch (5) by master control borad (12) and close, electromagnetic clutch (5) is in the position of (5/502).Under the control of master control borad (12), inversion and drive circuit (10), rotor (4) is driven by motor (9) rotate through electromagnetic coupling (8), reducer (7), electromagnetic coupling (6), the Changing Pattern being in the mud circulation area between rotor (4) and stator (3) is decided by the rotating rule of rotor (4) or motor (9), thus the mud pulse signal of a row rule can be produced, complete the modulated process of downhole data.Mud pulse signal, via the mud fluid column arrival point face rig standpipe of drill collar/drilling rod inside, realizes the transmission of down-hole terrestrial system data, carries out decoded back by ground detection and decode system to downhole data.The power supply of motor (9) and master control borad (12), all from rechargeable battery pack (13), realizes the utilization of store electrical energy.
In Fig. 1, the function of main control board (12) comprising: the switching 1. realizing motor (9) and generator (9); 2. inversion and drive circuit (10), control between rectification and filter circuit (11) is realized; 3. the control of electromagnetic clutch (5) is realized; 4. the charging to battery pack (13) and charge protection is realized.Charge protection can be realized by special hardware circuit, also can the detection of combined charge electric current be realized by software.Charging is do not need to carry out in the time period of data transmission at pulser with the effect of charge protector, charges, replace the disposable High Temperature Lithium Cell of current extensive use to down-hole high temperature Li-ion batteries piles (13).
Cable connector (14) realizes the connection of continuous wave pulser and other underground equipments, the application of oil filler point (15) and dummy piston (16), achieve sealing and the isolation of control assembly, mechanical transmission component and drilling fluid on the one hand, on the other hand cooling and lubrication effect is played to transmission mechanism.
Electromagnetic coupling A(6) effect be: when mud displacement sudden change cause the speed of rotor (4) excessive or too small time, and motor/generator (9) is in Generator Status, protection reducer (7) velocity variations is unlikely excessive, and before and after electronics shaft coupling (6) ensures, rotating speed can realize speed tracing within the specific limits; When motor/generator (9) is in motor duty, rotor (4) due to mechanical reason generation blocking, electromagnetic coupling (6) can protect motor (9) to there will not be the situation of overcurrent.
Electromagnetic coupling B(8) effect be: when reducer (7) fault, motor (9) is protected, eliminates the possibility because of motor rotation blockage motor damage; In addition, when motor is used as generator (9), eliminate the velocity perturbation that reducer is excessive, the velocity perturbation large to rotor (4) and large mud displacement suddenly change and have a filter action, control electric generator/electric motor (9) and are in rational speed and torque range.
Claims (3)
1. a carrier frequency self-adjusting self-power generation type continuous wave positive pulse generator, comprise: guide shell and the stator, the rotor that are placed in guide shell, and compressive sealed cylinder and be arranged on shaft coupling, reducer, motor in compressive sealed cylinder, its rotor drives with shaft coupling and is connected; It is characterized in that: described shaft coupling is electromagnetic coupling, and arrange respectively at the two ends of reducer, electromagnetic clutch is connected with at rotor and electromagnetic coupling link, described motor is equivalent to a generator when rotor rotates, be also provided with inversion and drive circuit, the rectification of alternator output signal and filter circuit, main control board and rechargeable battery pack in compressive sealed cylinder; Motor, inversion are connected by cable with between filter circuit, main control board, rechargeable battery pack successively with the rectification of drive circuit, alternator output signal.
2. carrier frequency according to claim 1 self-adjusting self-power generation type continuous wave positive pulse generator, is characterized in that: on compressive sealed cylinder, be provided with oil filler point and dummy piston.
3. carrier frequency according to claim 1 and 2 self-adjusting self-power generation type continuous wave positive pulse generator, is characterized in that: guide shell is provided with pulser spear-head and sealing ring, is provided with in compressive sealed cylinder lower end the cable connector be connected with cable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849400.XU CN205172568U (en) | 2015-10-30 | 2015-10-30 | Carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave |
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| CN201520849400.XU CN205172568U (en) | 2015-10-30 | 2015-10-30 | Carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave |
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| CN205172568U true CN205172568U (en) | 2016-04-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640057A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Electricity self-generating type continuous wave positive pulse generator achieving automatic adjustment of carrier frequency |
| CN109723433A (en) * | 2018-11-21 | 2019-05-07 | 山东鼎盛精工股份有限公司 | Underground continuous wave slurry pulse generator |
| CN112177592A (en) * | 2020-09-29 | 2021-01-05 | 北京六合伟业科技股份有限公司 | Intelligent measurement and control system for ultra-short radius well position |
-
2015
- 2015-10-30 CN CN201520849400.XU patent/CN205172568U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640057A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Electricity self-generating type continuous wave positive pulse generator achieving automatic adjustment of carrier frequency |
| CN109723433A (en) * | 2018-11-21 | 2019-05-07 | 山东鼎盛精工股份有限公司 | Underground continuous wave slurry pulse generator |
| CN112177592A (en) * | 2020-09-29 | 2021-01-05 | 北京六合伟业科技股份有限公司 | Intelligent measurement and control system for ultra-short radius well position |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220215 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee 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. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |