CN202250038U - Acoustic-wave well logging transducer - Google Patents
Acoustic-wave well logging transducer Download PDFInfo
- Publication number
- CN202250038U CN202250038U CN2011202855311U CN201120285531U CN202250038U CN 202250038 U CN202250038 U CN 202250038U CN 2011202855311 U CN2011202855311 U CN 2011202855311U CN 201120285531 U CN201120285531 U CN 201120285531U CN 202250038 U CN202250038 U CN 202250038U
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- CN
- China
- Prior art keywords
- well logging
- acoustic
- transducer
- circuit board
- bonding wire
- 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.)
- Expired - Fee Related
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model discloses a part of an instrument for well logging, and particularly discloses an acoustic-wave well logging transducer with high power and high-temperature resistance. The acoustic-wave well logging transducer is a trapezoidal round pipe formed by splicing and bonding piezoelectric ceramic strips, and the outer wall of the round pipe is coated with a metal electrode. The acoustic-wave well logging transducer is characterized in that an upper circuit board (2) is arranged at the upper end of piezoelectric ceramic (1), a lower circuit board (3) is arranged at the lower end of the piezoelectric ceramic (1), a bonding wire position (4) is arranged on the outer wall of the piezoelectric ceramic (1), a lead (5) is installed in the bonding wire position (4) to be connected with the upper circuit board (2) and the lower circuit board (3), and high-temperature resisting glass fiber (6) surrounds the lead (5). The acoustic-wave well logging transducer has the advantages that the lead is connected with the upper circuit board and the lower circuit board through the bonding wire position, and then the glass fiber containing high-temperature resisting glue solution is coated on the outside of the whole piezoelectric ceramic, thereby improving stability of the silver electrode under the conditions that the shape of the acoustic-wave transducer is not changed and measurement accuracy is not influenced, and prolonging service life while the accuracy of the acoustic-wave transducer is kept.
Description
Technical field
The utility model relates to a kind of the well logging with the parts of instrument, relates in particular to have high-power and resistant to elevated temperatures a kind of acoustic wave transducer.
Background technology
Acoustic wave transducer is to convert the signal of telecommunication again to after converting acoustic signal to mechanical oscillation.
In the well logging engineering, the piezoelectric ceramics well logging transducer of logger arrives the dark down-hole of 1500-6000 rice, down-hole down with instrument, about the temperature 100-230 degree of down-hole; Some down-hole of atmospheric pressure 30-130MP is also with complicated gases such as hydrogen sulfide, and traditional sound wave well logging transducer is the surface that silver electrode and electrode are coated in piezoelectric ceramics, like 8 12 shear-polarization sound wave well logging transducers of YTG series; Be to process behind the shear-polarization through being coated with behind the silver by the tubular piezo ceramic element, the high about 1000HV of the ceramic body hardness of transducer, the hardness of silver electrode is hanged down about 70HV; Their difference of hardness is apart from great disparity; The coefficient of expansion between the two is different, and silver electrode is being born under the 10-100KHz vibrational state under the influence of pressure and temperature and complex environment, and silver layer can seriously come off; Cause the well logging result inaccurate, have a strong impact on the well logging workmanship.
The utility model content
The purpose of the utility model is to provide a kind of sound wave well logging transducer, solves silver electrode on the existing sound wave well logging transducer and comes off easily that to cause into the well logging result inaccurate, has a strong impact on the problem of well logging workmanship.
For addressing the above problem, the technical scheme that the utility model is taked is:
A kind of sound wave well logging transducer; Comprise by the piezoelectric ceramics bar and piece together the pipe that sticking outer wall in echelon crosses metal electrode; Be provided with wiring board in the upper end of piezoelectric ceramics, the lower end is provided with the line plate, and the outer wall of said piezoelectric ceramics is provided with the bonding wire position; Lead-in wire is installed in to connect in the bonding wire position goes up wiring board and line plate, and described lead-in wire also comprises the glass fiber that contains high temperature resistant glue outward.
For making the utility model play better technique effect:
Further improve and be: above-mentioned bonding wire position has 16 at least, is evenly distributed on the outer wall of piezoelectric ceramics.
Further improve and be: the thick 1-3mm of above-mentioned glass fiber.
The beneficial effect that technical scheme produced in the employing is: lead-in wire connects through the bonding wire position goes up wiring board and line plate; Appearance at whole piezoelectric ceramics wraps the glass fiber that contains high temperature resistant glue then; Both can let the acoustic wave transducer profile not change the stability that improves silver electrode under the situation that does not influence certainty of measurement, make acoustic wave transducer longer service life when keeping precision again.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structure sectional view.
The specific embodiment
Following the utility model is done and is described in further detail:
As depicted in figs. 1 and 2: a kind of sound wave well logging transducer; Piece together the pipe 1 that sticking outer wall in echelon crosses metal electrode by the piezoelectric ceramics bar; Be provided with wiring board 2 in the upper end of piezoelectric ceramics 1, the lower end is provided with line plate 3, and the outer wall of said piezoelectric ceramics 1 is provided with bonding wire position 4; Lead-in wire 5 is installed in to connect in the bonding wire position 4 goes up wiring board 2 and line plate 3, the described lead-in wire 5 outer glass fiber 6 that contain high temperature resistant glue that also comprise.In the present embodiment, bonding wire position 4 has 16 at least, be evenly distributed on the outer wall of piezoelectric ceramics 1, and the thickness of described glass fiber 6 is best at 1-3mm.Lead-in wire 5 connects through bonding wire position 4 goes up wiring board 2 and line plate 3; Wrap the glass fiber 6 that contains high temperature resistant glue in the appearance of whole piezoelectric ceramics 1 on excessively then; Both can let the acoustic wave transducer profile not change the stability that improves silver electrode under the situation that does not influence certainty of measurement, make acoustic wave transducer longer service life when keeping precision again.
Claims (3)
1. sound wave well logging transducer; Comprise by the piezoelectric ceramics bar and piece together the pipe (1) that sticking outer wall in echelon crosses metal electrode; It is characterized in that: be provided with wiring board (2) in the upper end of piezoelectric ceramics (1), the lower end is provided with line plate (3), and the outer wall of said piezoelectric ceramics (1) is provided with bonding wire position (4); Lead-in wire (5) is installed in to connect in the bonding wire position (4) goes up wiring board (2) and line plate (3), the outer glass fiber (6) that contains high temperature resistant glue that also comprises of described lead-in wire (5).
2. a kind of sound wave well logging transducer according to claim 1 is characterized in that: described bonding wire position (4) has 16 at least, is evenly distributed on the outer wall of piezoelectric ceramics (1).
3. a kind of sound wave well logging transducer according to claim 1 is characterized in that: the thick 1-3mm of described glass fiber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202855311U CN202250038U (en) | 2011-08-08 | 2011-08-08 | Acoustic-wave well logging transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202855311U CN202250038U (en) | 2011-08-08 | 2011-08-08 | Acoustic-wave well logging transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250038U true CN202250038U (en) | 2012-05-30 |
Family
ID=46111297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202855311U Expired - Fee Related CN202250038U (en) | 2011-08-08 | 2011-08-08 | Acoustic-wave well logging transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250038U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979514A (en) * | 2012-11-22 | 2013-03-20 | 中国石油天然气集团公司 | Pressure bearing electronic warehouse for acoustic logging instrument |
| CN103982177A (en) * | 2014-05-23 | 2014-08-13 | 中国电子科技集团公司第二十二研究所 | Acoustic wave logging transducer |
| CN108119131A (en) * | 2017-12-29 | 2018-06-05 | 吉林大学 | A kind of high temperature untethered sound passes logging instrument |
-
2011
- 2011-08-08 CN CN2011202855311U patent/CN202250038U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979514A (en) * | 2012-11-22 | 2013-03-20 | 中国石油天然气集团公司 | Pressure bearing electronic warehouse for acoustic logging instrument |
| CN102979514B (en) * | 2012-11-22 | 2015-10-21 | 中国石油天然气集团公司 | A kind of pressure-bearing electronics storehouse for acoustic logging instrument |
| CN103982177A (en) * | 2014-05-23 | 2014-08-13 | 中国电子科技集团公司第二十二研究所 | Acoustic wave logging transducer |
| CN108119131A (en) * | 2017-12-29 | 2018-06-05 | 吉林大学 | A kind of high temperature untethered sound passes logging instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |