CN104405370A - Transmitting transducer for sound wave transmitting of downhole information based on drill stem channels - Google Patents
Transmitting transducer for sound wave transmitting of downhole information based on drill stem channels Download PDFInfo
- Publication number
- CN104405370A CN104405370A CN201410144521.4A CN201410144521A CN104405370A CN 104405370 A CN104405370 A CN 104405370A CN 201410144521 A CN201410144521 A CN 201410144521A CN 104405370 A CN104405370 A CN 104405370A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric ceramics
- crystalline substance
- transmitting transducer
- substance heap
- annulus
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 95
- 229910052751 metal Inorganic materials 0.000 claims abstract description 57
- 239000002184 metal Substances 0.000 claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 239000000126 substance Substances 0.000 claims description 49
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000737 Duralumin Inorganic materials 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 abstract 3
- 230000010287 polarization Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B47/16—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 drill string or casing, e.g. by torsional acoustic waves
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Acoustics & Sound (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention relates to a transmitting transducer for sound wave transmitting of downhole information based on drill stem channels. According to the technical scheme disclosed by the invention, a front cover board is composed of a front segment of the front cover board in an inner cone structure, and a rear segment of the front cover board with an annular notch; a rear cover board adopts a cylindrical structure with an annular notch in the front end; a rear piezoelectric ceramic crystal heap, a middle piezoelectric ceramic crystal heap and a front piezoelectric ceramic crystal heap are respectively formed by alternate stacking of piezoelectric ceramic rings and thin metal electrodes with the same radial dimension; the polarization directions of the piezoelectric ceramic rings are the thickness directions of ring plates. The transmitting transducer disclosed by the invention has the beneficial effects that the resonant frequency of the transducer can be effectively reduced; the working band is expanded; the size of the transducer is reduced; the low-frequency and broadband properties of the downhole transmitting transducer are achieved; the overall performance of the transmitting transducer can meet the requirements of underground operation; the universality of the transmitting transducer used in different drill stem channels is enhanced; the loss of an incident signal of the transmitting transducer can be reduced; effective directional transmission of the signals is ensured; the accuracy and the reliability of information transmission are ensured.
Description
Technical field
The present invention relates to a kind of down-hole information radio transmitting device, particularly a kind of down-hole information sonic transmissions transmitting transducer based on drill string channel.
Background technology
Oil/gas Well is the passage obtaining former oil and gas how exactly, in high quality, set up the major subjects that this passage is drilling engineering field always.Current status and prospect according to world oil and gas drilling engineering is predicted, oil drilling industry will face more complicated geological conditions and worse natural environment, and the measurement of downhole drill engineering parameter and geologic parameter is the important leverage reducing drilling well risk, improve drilling benefit.Wherein transmission of wireless signals is a key link of underground survey technology, and the down-hole information Radio Transmission Technology of oil/gas drilling is also improve the key of drilling well precision simultaneously.The Radio Transmission Technology of down-hole information has become " most important thing " of measurement while drilling research, is also confessed drilling technology development " bottleneck " of whole international drilling well circle.For the communication system on down-hole and ground, the wireless information transfer mode proposed at present mainly contains drilling fluid pulse, electromagnetic wave and sound wave three kinds of modes.
For down-hole information Radio Transmission Technology, now use the most extensive in drilling fluid pulse mode, but which transmittability is limited, message transmission rate is comparatively slow, and needs the data volume of transmission day by day to increase, and makes which cannot meet the technical requirements day by day improved.Simultaneously along with oil and gas development progressively shifts from self-contained elephant and conventional reservoir to hypotonic low-voltage and low-yield energy reservoir and unconventional reservoir, the various unconventional drilling fluid such as gas, foam is widely used, the compressibility of these unconventional drilling fluids is strong, effective drilling fluid pulse can not be produced, traditional drilling fluid pulse transmission means cannot be used.
Utilizing sound wave to transmit down-hole information by drill string is one of important directions of down-hole information transmission means development, and sonic transmissions mode is using drill string as transmission channel, using sound wave as signal vehicle, carries out the wireless transmission method of down-hole information.Sonic transmissions mode has that structure is simple, cost is lower, be easy to the advantages such as directional transmissions, simultaneously in oil/gas drilling down-hole continuous print metal drill string also for the down-hole information high-speed transfer of sound wave provides advantageous condition.The propagation of sound wave in drill string and attenuation law change by various factors affects, the distribution of drill string channel band presents passband and stopband replaces the comb filter structure feature occurred, research is thought the compressional wave of low-frequency range need be selected as the carrier format of the down-hole sound transmission, therefore needs resonant frequency at the down-hole transmitting transducer of low-frequency range.Be limited by down-hole small space, and the electric current of available electric power and shaft bottom electronic equipment holds ability, the physical dimension of down-hole transmitting transducer is extremely restricted.Sound wave is propagated and also be there is serious noise and intersymbol interference in drill string simultaneously, can adopt the modulation techniques such as frequency division multiplexing (OFDM), exchanges reliability and the transfer rate of the way raising data transmission of signal to noise ratio with bandwidth for.The broad band low frequency transducer meeting underground working and space constraint has obvious advantage in downhole wireless information transmission, and one is the decay reducing signal in the transmission, the integrality of guarantee information and accuracy; Two is the transfer rates that can improve signal, improves the reliability of communication and reduces the bit error rate.
Therefore develop the down-hole transmitting transducer meeting low frequency, broadband, small size and meet the requirements such as subsurface environment, being the inevitable requirement of the down-hole information sound wave Radio Transmission Technology based on drill string channel, is a scientific and technical difficult problem urgently to be resolved hurrily.The main difficulty of low frequency, broadband, small size transducers design is, in order to improve emission effciency and transmitting power, transducer must be operated in resonant condition, and lower operating frequency, mean larger transducer dimensions, space, down-hole and engineering condition do not allow which, therefore reduce operating frequency and become conflict with reduction transducer dimensions.The main method of current this problem of solution has: one is the new material that application has larger compliance and coefficient of dilatation; Two is development of new transducer architectures.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, a kind of down-hole information sonic transmissions transmitting transducer based on drill string channel is provided, can solves and require based on the down-hole information sonic transmissions transmitting transducer low frequency of drill string channel, broadband and small size the technical barrier that coexists.
Its technical scheme comprises front shroud, back shroud, rear piezoelectric ceramics crystalline substance heap, middle piezoelectric ceramics crystalline substance heap, front piezoelectric ceramics crystalline substance heap, circular ring metal ring and stepped ramp type metal ring and outer sleeve, and described front shroud is made up of the front shroud leading portion of female cone structure and the front shroud back segment that is provided with annular slotted; Back shroud adopts the cylindrical structure of front end annular slotted; Described rear piezoelectric ceramics crystalline substance is piled, middle piezoelectric ceramics crystalline substance is piled and front piezoelectric ceramics crystalline substance heap is replace stacking forming by piezoelectric ceramics annulus with the thin metal electrode film of radial dimension respectively, and the polarised direction of piezoelectric ceramics annulus is circular ring plate thickness direction; The piezoelectric ceramics annulus of different structure size forms multiple piezoelectric ceramics crystalline substance heap; Multiple piezoelectric ceramics crystalline substance heap comprises rear piezoelectric ceramics crystalline substance heap, middle piezoelectric ceramics crystalline substance heap and front piezoelectric ceramics crystalline substance heap, and by circular ring metal ring with stepped ramp type metal ring is bonding becomes piezoelectric ceramic body, piezoelectric ceramic body and front shroud, back shroud is bonding and install outer sleeve.
Above-mentioned rear piezoelectric ceramics crystalline substance heap, middle piezoelectric ceramics crystalline substance heap, front piezoelectric ceramics crystalline substance heap are made up of even number piezoelectric ceramics annulus respectively, and the polarised direction of adjacent two panels piezoelectric ceramics annulus is contrary.
The circular ring plate being easy to weld that above-mentioned thin metal electrode film is become by brass or zinc, platinum, copper, its external diameter and internal diameter and corresponding piezoelectric ceramics annulus measure-alike.
Contact portion between above-mentioned thin metal electrode film and piezoelectric ceramics annulus, between thin metal electrode film and front shroud, between thin metal electrode film and back shroud, between thin metal electrode film and circular ring metal ring, between thin metal electrode film and stepped ramp type metal ring is glued together by high-temperature-resistant epoxy resin.
Above-mentioned front shroud leading portion adopts the cylinder of female cone structure, and front shroud back segment is provided with annular slotted, and material is that duralumin or almag are made; The structure of front shroud leading portion and front shroud back segment can obtain larger front/rear end vibration velocity ratio, for improving transmitting transducer incident intensity.
Above-mentioned piezoelectric ceramics annulus is made by piezoelectric ceramics PZT, and polarised direction is along annulus thickness direction.
The invention has the beneficial effects as follows: the present invention is by reducing the rigidity of structure, increasing the form of structural damping and multiple piezoelectric ceramics crystalline substance heap tandem compound, effectively can reduce transducer resonant frequency, widen working band and reduce transducer dimensions, achieve low frequency and the broad band performance of down-hole transmitting transducer.The overall performance of transmitting transducer, the needs of underground work can be met, enhance the versatility that transmitting transducer uses in different drill string channel, the loss of transmitting transducer incoming signal can be reduced, ensure effective directional transmissions signal, guarantee that information transmission accurately and reliably.
Accompanying drawing explanation
Accompanying drawing 1 is Facad structure schematic diagram of the present invention;
Accompanying drawing 2 is internal construction schematic diagrames of the present invention;
Fig. 3 is that pipe nipple and transducer scheme of installation are launched in down-hole;
Fig. 4 is front cover structure schematic diagram;
Fig. 5 is rear cover plate structure schematic diagram;
Fig. 6 is the brilliant pile structure schematic diagram of piezoelectric ceramics;
Fig. 7 is the thin metal electrode film schematic diagram of annulus;
Fig. 8 is piezoelectric ceramic body schematic diagram;
Fig. 9 is circular ring metal ring schematic diagram;
Figure 10 is stepped ramp type metal ring schematic diagram;
Figure 11 is outer sleeve schematic diagram;
Figure 12 is transducer transmitting voltage response curve map;
In upper figure: front shroud 1, back shroud 2, circular ring metal ring 3, stepped ramp type metal ring 4, rear piezoelectric ceramics crystalline substance heap 5, middle piezoelectric ceramics crystalline substance heap 6, front piezoelectric ceramics crystalline substance heap 7, outer sleeve 8;
Transmitting transducer 9, down-hole launch pipe nipple 10, instrument room 11, front shroud leading portion 12, front shroud back segment 13, back shroud leading portion 14, piezoelectric ceramics annulus 15, thin metal electrode film 16.
Detailed description of the invention
1-12 by reference to the accompanying drawings, the invention will be further described:
A kind of down-hole information sonic transmissions transmitting transducer based on drill string channel as depicted in figs. 1 and 2, the present invention includes front shroud 1, back shroud 2, rear piezoelectric ceramics crystalline substance heap 5, middle piezoelectric ceramics crystalline substance heap 6, front piezoelectric ceramics crystalline substance heap 7, circular ring metal ring 3 and stepped ramp type metal ring 4 and outer sleeve 8, described front shroud 1 is made up of the front shroud leading portion 12 of female cone structure and the front shroud back segment 13 that is provided with annular slotted; Back shroud 2 adopts the cylindrical structure of front end annular slotted; Described rear piezoelectric ceramics crystalline substance heap 5, middle piezoelectric ceramics crystalline substance heap 6 and front piezoelectric ceramics crystalline substance heap 7 are form by piezoelectric ceramics annulus 15 with the thin metal electrode film 16 of radial dimension is alternately stacking respectively, and the polarised direction of piezoelectric ceramics annulus 15 is circular ring plate thickness direction; The piezoelectric ceramics annulus 15 of different structure size forms multiple piezoelectric ceramics crystalline substance heap; Multiple piezoelectric ceramics crystalline substance heap comprises rear piezoelectric ceramics crystalline substance heap 5, middle piezoelectric ceramics crystalline substance heap 6 and front piezoelectric ceramics crystalline substance heap 7, and by circular ring metal ring 3 with stepped ramp type metal ring 4 is bonding becomes piezoelectric ceramic body, piezoelectric ceramic body and front shroud 1, back shroud 2 is bonding and install outer sleeve 8.
Wherein, the contact portion between thin metal electrode film 16 and piezoelectric ceramics annulus 15, between thin metal electrode film 16 and front shroud 1, between thin metal electrode film 16 and back shroud 2, between thin metal electrode film 16 and circular ring metal ring 3, between thin metal electrode film 16 and stepped ramp type metal ring 4 is glued together by high-temperature-resistant epoxy resin.
As shown in Figure 3, transmitting transducer 9 is arranged on down-hole and launches in the annular space instrument room 11 of pipe nipple 10, and transmitting transducer front shroud 1 is connected with transmitting short joint end face, and transmitting transducer back shroud 2 is fixed in instrument room 11.
As shown in Figure 4, front shroud 1 leading portion 12 adopts female cone form cylinder, and front shroud back segment 13 carries out annular slotted, and material is the light metal such as duralumin, almag; As shown in Figure 5, back shroud adopts cylindrical shape, and material is the heavy metal such as steel, brass, and back shroud leading portion 14 carries out annular slotted; The design feature of front and rear cover plate can ensure that transducer obtains larger front end face amplitude, improves transmitting transducer surface feeding sputtering intensity.
As shown in Figure 6, the piezoelectric ceramics annulus 15 of different size, piezoelectric ceramics annulus 16 and piezoelectric ceramics annulus 17 are made by piezoelectric ceramics PZT, and polarised direction is along annulus thickness direction.Rear piezoelectric ceramics crystalline substance heap 5, middle piezoelectric ceramics crystalline substance heap 6 and front piezoelectric ceramics crystalline substance heap 7 are made up of even number piezoelectric ceramics annulus 15 respectively, and the polarised direction of adjacent two panels piezoelectric ceramics annulus is contrary.As shown in Figure 7, thin metal electrode film 16 is the circular ring plates being easy to weld become by brass or zinc, platinum, copper, its external diameter and internal diameter and corresponding piezoelectric ceramics annulus measure-alike.
As shown in Figure 8, rear piezoelectric ceramics crystalline substance heap 5, middle piezoelectric ceramics crystalline substance heap 6 and front piezoelectric ceramics crystalline substance heap 7, by circular ring metal ring 3 with stepped ramp type metal ring 4 is bonding becomes piezoelectric ceramic body.Piezoelectric ceramic body is bonding with front and rear cover plate and install outer sleeve, and contact portion is glued together by high-temperature-resistant epoxy resin between thin metal electrode film and piezoelectric ceramics annulus, between thin metal electrode film and front shroud, between thin metal electrode film and back shroud, between thin metal electrode film and circular ring metal ring, between thin metal electrode film and stepped ramp type metal ring etc.
As shown in figure 12, give the transmitting voltage response curve of this transmitting transducer example, transmitting transducer resonant frequency 500Hz, working band is 500Hz-3500Hz, and maximum transmitting voltage response is 146dB, rises and falls as 12dB.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the down-hole information sonic transmissions transmitting transducer based on drill string channel, it is characterized in that: comprise front shroud (1), back shroud (2), rear piezoelectric ceramics crystalline substance heap (5), middle piezoelectric ceramics crystalline substance heap (6), front piezoelectric ceramics crystalline substance heap (7), circular ring metal ring (3) and stepped ramp type metal ring (4) and outer sleeve (8), described front shroud (1) is made up of the front shroud leading portion (12) of female cone structure and the front shroud back segment (13) that is provided with annular slotted; Back shroud (2) adopts the cylindrical structure of front end annular slotted; It is replace stacking forming by piezoelectric ceramics annulus (15) with the thin metal electrode film (16) of radial dimension respectively that described rear piezoelectric ceramics crystalline substance piles (5), middle piezoelectric ceramics crystalline substance heap (6) and front piezoelectric ceramics crystalline substance heap (7), and the polarised direction of piezoelectric ceramics annulus (15) is circular ring plate thickness direction; The piezoelectric ceramics annulus (15) of different structure size forms multiple piezoelectric ceramics crystalline substance heap; Multiple piezoelectric ceramics crystalline substance heap comprises rear piezoelectric ceramics crystalline substance heap (5), middle piezoelectric ceramics crystalline substance heap (6) and front piezoelectric ceramics crystalline substance heap (7), and by circular ring metal ring (3) with stepped ramp type metal ring (4) is bonding becomes piezoelectric ceramic body, piezoelectric ceramic body and front shroud (1), back shroud (2) is bonding and install outer sleeve (8).
2. the down-hole information sonic transmissions transmitting transducer based on drill string channel according to claim 1, it is characterized in that: described rear piezoelectric ceramics crystalline substance heap (5), middle piezoelectric ceramics crystalline substance heap (6), front piezoelectric ceramics crystalline substance heap (7) are made up of even number piezoelectric ceramics annulus (15) respectively, and the polarised direction of adjacent two panels piezoelectric ceramics annulus (15) is contrary.
3. the down-hole information sonic transmissions transmitting transducer based on drill string channel according to claim 1, it is characterized in that: the circular ring plate being easy to weld that described thin metal electrode film (16) is become by brass or zinc, platinum, copper, its external diameter and internal diameter and corresponding piezoelectric ceramics annulus (15) measure-alike.
4. the down-hole information sonic transmissions transmitting transducer based on drill string channel according to claim 1 or 3, is characterized in that: the contact portion between described thin metal electrode film (16) and piezoelectric ceramics annulus (15), between thin metal electrode film (16) and front shroud (1), between thin metal electrode film (16) and back shroud (2), between thin metal electrode film (16) and circular ring metal ring (3), between thin metal electrode film (16) and stepped ramp type metal ring (4) is glued together by high-temperature-resistant epoxy resin.
5. the down-hole information sonic transmissions transmitting transducer based on drill string channel according to claim 1, it is characterized in that: described front shroud leading portion (12) adopts the cylinder of female cone structure, front shroud back segment (13) is provided with annular slotted, and material is that duralumin or almag are made; The structure of front shroud leading portion (12) and front shroud back segment (13) can obtain larger front/rear end vibration velocity ratio, for improving transmitting transducer incident intensity.
6. the down-hole information sonic transmissions transmitting transducer based on drill string channel according to claim 1, is characterized in that: described piezoelectric ceramics annulus (15) is made by piezoelectric ceramics PZT, and polarised direction is along annulus thickness direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144521.4A CN104405370A (en) | 2014-04-11 | 2014-04-11 | Transmitting transducer for sound wave transmitting of downhole information based on drill stem channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144521.4A CN104405370A (en) | 2014-04-11 | 2014-04-11 | Transmitting transducer for sound wave transmitting of downhole information based on drill stem channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405370A true CN104405370A (en) | 2015-03-11 |
Family
ID=52643026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410144521.4A Pending CN104405370A (en) | 2014-04-11 | 2014-04-11 | Transmitting transducer for sound wave transmitting of downhole information based on drill stem channels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405370A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443117A (en) * | 2015-11-24 | 2016-03-30 | 浙江大学 | Acoustic logging system |
| CN106481336A (en) * | 2016-10-31 | 2017-03-08 | 重庆博创声远科技有限公司 | Soic wave transmitting energy converter and its drill collar mounting structure |
| CN107023288A (en) * | 2016-02-01 | 2017-08-08 | 中国科学院声学研究所 | It is a kind of for low frequency extensional vibration transducer of oil well sound wave communication and preparation method thereof |
| CN109935223A (en) * | 2017-12-19 | 2019-06-25 | 北京长城电子装备有限责任公司 | A kind of super-small low frequencies energy converter |
| CN110721890A (en) * | 2019-10-25 | 2020-01-24 | 海鹰企业集团有限责任公司 | Light and thin medium-high frequency broadband transduction element |
| CN111323317A (en) * | 2020-04-13 | 2020-06-23 | 北京大学 | High-frequency fatigue test device and method based on piezoelectric double-stack resonance driving |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004312119A (en) * | 2003-04-03 | 2004-11-04 | Furuno Electric Co Ltd | Ultrasonic transducer |
| CN101321411A (en) * | 2008-06-13 | 2008-12-10 | 北京信息科技大学 | Cylindrical stack wafer underwater transducer |
| CN102733799A (en) * | 2012-06-26 | 2012-10-17 | 中国石油大学(华东) | Well drilling information acoustic wave transmission relay device based on drilling string information channel |
| CN102843637A (en) * | 2012-09-06 | 2012-12-26 | 北京信息科技大学 | Cylindrical transducer with stacked piezoelectric circular tubes with different internal diameters |
| CN103382837A (en) * | 2013-07-31 | 2013-11-06 | 中国石油集团西部钻探工程有限公司 | Information while drilling sound wave transmission relay transmitting device |
| CN203856471U (en) * | 2014-04-11 | 2014-10-01 | 中国石油化工集团公司 | Drill string channel-based underground information acoustic wave transmission transmitting transducer |
-
2014
- 2014-04-11 CN CN201410144521.4A patent/CN104405370A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004312119A (en) * | 2003-04-03 | 2004-11-04 | Furuno Electric Co Ltd | Ultrasonic transducer |
| CN101321411A (en) * | 2008-06-13 | 2008-12-10 | 北京信息科技大学 | Cylindrical stack wafer underwater transducer |
| CN102733799A (en) * | 2012-06-26 | 2012-10-17 | 中国石油大学(华东) | Well drilling information acoustic wave transmission relay device based on drilling string information channel |
| CN102843637A (en) * | 2012-09-06 | 2012-12-26 | 北京信息科技大学 | Cylindrical transducer with stacked piezoelectric circular tubes with different internal diameters |
| CN103382837A (en) * | 2013-07-31 | 2013-11-06 | 中国石油集团西部钻探工程有限公司 | Information while drilling sound wave transmission relay transmitting device |
| CN203856471U (en) * | 2014-04-11 | 2014-10-01 | 中国石油化工集团公司 | Drill string channel-based underground information acoustic wave transmission transmitting transducer |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443117A (en) * | 2015-11-24 | 2016-03-30 | 浙江大学 | Acoustic logging system |
| CN105443117B (en) * | 2015-11-24 | 2018-09-28 | 浙江大学 | A kind of acoustic logging system |
| CN107023288A (en) * | 2016-02-01 | 2017-08-08 | 中国科学院声学研究所 | It is a kind of for low frequency extensional vibration transducer of oil well sound wave communication and preparation method thereof |
| CN107023288B (en) * | 2016-02-01 | 2019-08-20 | 中国科学院声学研究所 | A kind of low frequency extensional vibration energy converter and preparation method thereof for oil well sound wave communication |
| CN106481336A (en) * | 2016-10-31 | 2017-03-08 | 重庆博创声远科技有限公司 | Soic wave transmitting energy converter and its drill collar mounting structure |
| CN106481336B (en) * | 2016-10-31 | 2023-08-11 | 重庆博创声远科技有限公司 | Acoustic wave transmitting transducer and drill collar mounting structure thereof |
| CN109935223A (en) * | 2017-12-19 | 2019-06-25 | 北京长城电子装备有限责任公司 | A kind of super-small low frequencies energy converter |
| CN109935223B (en) * | 2017-12-19 | 2021-04-20 | 北京长城电子装备有限责任公司 | Ultra-small-size low-frequency transmitting transducer |
| CN110721890A (en) * | 2019-10-25 | 2020-01-24 | 海鹰企业集团有限责任公司 | Light and thin medium-high frequency broadband transduction element |
| CN111323317A (en) * | 2020-04-13 | 2020-06-23 | 北京大学 | High-frequency fatigue test device and method based on piezoelectric double-stack resonance driving |
| CN111323317B (en) * | 2020-04-13 | 2020-12-22 | 北京大学 | High-frequency fatigue test device and method based on piezoelectric double-stack resonance driving |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104405370A (en) | Transmitting transducer for sound wave transmitting of downhole information based on drill stem channels | |
| RU2716548C2 (en) | Downhole wireless transmission system | |
| JP6543703B2 (en) | Wireless power transfer to downhole well equipment | |
| US7777645B2 (en) | Acoustic telemetry transceiver | |
| US3790930A (en) | Telemetering system for oil wells | |
| CN102733799B (en) | Well drilling information acoustic wave transmission relay device based on drilling string information channel | |
| CN102162358B (en) | Soundwave-while-drilling well logging device | |
| US6535458B2 (en) | Method and apparatus for suppressing drillstring vibrations | |
| CN202170793U (en) | Logging-while-drilling sound wave logging device and transmitting transducer | |
| CN103323195B (en) | A kind of whirling vibration excitation and dynamic measurement device | |
| EP1467060A1 (en) | Flexible piezoelectric device for downhole sensing, actuation and health monitoring | |
| WO2013102761A2 (en) | Wireless acoustic communications method and apparatus | |
| CN1648690A (en) | Integrated acoustic transducer assembly | |
| NO339498B1 (en) | Method and apparatus for generating acoustic signals for measuring shear wave velocity during logging during drilling | |
| CN203856471U (en) | Drill string channel-based underground information acoustic wave transmission transmitting transducer | |
| CN109790748A (en) | Dual transducers communication node for underground acoustics wireless network and the method using the communication node | |
| MX2013006334A (en) | Wireless communication between tools. | |
| CN102354501A (en) | Unidirectional echo and noise suppression method used in drill string acoustic transmission technology | |
| CN105443117A (en) | Acoustic logging system | |
| CN102767360A (en) | Underground detector for measuring acousto-electric effects | |
| CN206617161U (en) | A kind of cubical array acoustic logging instrument | |
| CN102750941B (en) | Deep-water ultra wide band spherical transducer | |
| CN106089187B (en) | Marine well logging signal transmission system | |
| CN102877839B (en) | Acoustic transducer and logging device thereof | |
| CN113678026B (en) | electroacoustic transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
|
| WD01 | Invention patent application deemed withdrawn after publication |