CN201241697Y - Drill-following sound wave dipole transducer - Google Patents
Drill-following sound wave dipole transducer Download PDFInfo
- Publication number
- CN201241697Y CN201241697Y CNU2008201087267U CN200820108726U CN201241697Y CN 201241697 Y CN201241697 Y CN 201241697Y CN U2008201087267 U CNU2008201087267 U CN U2008201087267U CN 200820108726 U CN200820108726 U CN 200820108726U CN 201241697 Y CN201241697 Y CN 201241697Y
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- transducer
- dipole
- dipole transducer
- metal
- sound wave
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Abstract
The utility model relates to a while-drilling acoustic dipole transducer for the logging tools applied in petroleum geology exploration and metal mine exploration, which is composed by adhering two ceramic sheets at two surfaces of a metal baseboard to form a dipole transducer unit, leading electrodes from the surface of each ceramic sheet, using the metal baseboard at the middle as an another electrode, embedding a plurality of the dipole transducer units on a metal skeleton plate distributed with a plurality of holes. The while-drilling acoustic dipole transducer can work under high temperature of 175 DEG C high pressure of 140MPa and the frequency range of 0.5 to 5 KHz. The while-drilling acoustic logging machine adopting the transducer can measure formation shear wave in the soft formation which shear wave time difference is lower than 1000 microseconds in every foot, the transducer is independent and easy to exchange, and the transducer can be expanded to be processed into sending transducer and receiving transducer.
Description
Technical field
The utility model relate to a kind of petroleum geology exploration and metal mineral reserves exploration logger with boring sound wave dipole transducer.
Background technology
In recent years, the home and abroad begins to carry out in a large number the oil-gas exploration and the exploitation of high angle hole, horizontal well, is subjected to it to drive well logging during and is just bringing into play more and more important effect, and the trend of replacement cables well logging is arranged.At present, the ratio of marine well logging during is up to more than 95%, and the output value of annual well logging during service has accounted for more than 25% of the whole well logging industry output value.
Has following some clear superiority as one of key technology at aspects such as drilling engineering and oil-gas explorations with boring acoustic logging: first, combining with earthquake with boring acoustic logging, is strata pressure and a kind of very promising technology of estimating borehole wall stability before the present brill of prediction in time; The second, deep water waters exploration is with boring the unique channel that acoustic logging is the longitudinal and transverse wave velocity in stratum of dark conversion and elastic wave impedance inverting etc. when obtaining to be used for seismic data; The 3rd, oil gas evaluation and geosteering aspect and are compared with density log with boring neutron, measure formation porosity and have the advantage of safety, environmental protection with boring acoustic logging.
The utility model content
The purpose of this utility model is: design a kind of transmitter employing beam mode work that obtains characteristic parameters such as longitudinal and transverse ripple and Stoneley wave with the brill sonic apparatus in soft formation, dipole transducer with directionality, make it be suitable for HTHP, the environment for use of high anti-vibration.
Described in the utility model is to be bonded in the metal substrate two sides by two potsherds to constitute the dipole transducer unit with boring sound wave dipole transducer, at every potsherd surface extraction electrode, middle metal substrate is as another electrode, more a plurality of dipole transducer units is embedded on the metallic framework plate in a plurality of holes that distribute to constitute.
The dipole transducer unit is bonded in metal substrate by two potsherds and forms.At every potsherd surface extraction electrode, middle metal substrate is as another electrode, and this kind transmitter adopts beam mode work, has directionality.The dipole transmitting transducer is the spitting image of a piston, and it increases the pressure of well one side, and the pressure of opposite side is reduced, and causes that little disturbance appears in the borehole wall, so just directly inspires compressional wave and shear wave in the stratum.It is coaxial with well that these disturb bent wave propagation, and its proton direction of vibration is vertical with borehole axis, consistent with the transmit direction of transducer.Compressional wave that inspires and shear wave are received by wide band receiving transducer, just can record in slow formation and disturb Qu Bo.
The utility model satisfies 175 ℃ of high temperature, works under the high pressure 140MPa ambient conditions; Frequency range: 0.5K～5KHz.That uses this kind transducer can measure the stratum shear wave with boring acoustic logging instrument in the soft formation of shear wave slowness less than every foot 1000 microsecond, independent, is easy to change.Be used for expansion, be processed as transmitting transducer and receiving transducer and use.
Description of drawings
Fig. 1 is with boring sound wave dipole transducer unit structural representation.
Fig. 2 is with boring sound wave dipole transducer architecture schematic diagram.
Wherein: 1, potsherd 2, substrate 3, potsherd 4, frame board 5, with boring sound wave dipole transducer unit
The specific embodiment
Be illustrated with boring sound wave dipole transducer architecture described in the utility model with reference to the accompanying drawings below.
Described in the utility model is to be bonded in metal substrate 2 two sides by two potsherds 1,3 to constitute dipole transducer unit 5 with boring sound wave dipole transducer, at every potsherd surface extraction electrode, middle metal substrate is as another electrode, more a plurality of dipole transducer units 5 is embedded on the metallic framework plate 4 in a plurality of holes that distribute to constitute.
Claims (1)
1. one kind with boring sound wave dipole transducer, it is characterized in that: be to be bonded in the metal substrate two sides by two potsherds to constitute the dipole transducer unit, at every potsherd surface extraction electrode, middle metal substrate is as another electrode, more a plurality of dipole transducer units is embedded on the metallic framework plate in a plurality of holes that distribute to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201087267U CN201241697Y (en) | 2008-06-19 | 2008-06-19 | Drill-following sound wave dipole transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201087267U CN201241697Y (en) | 2008-06-19 | 2008-06-19 | Drill-following sound wave dipole transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241697Y true CN201241697Y (en) | 2009-05-20 |
Family
ID=40714994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201087267U Expired - Lifetime CN201241697Y (en) | 2008-06-19 | 2008-06-19 | Drill-following sound wave dipole transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241697Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508299A (en) * | 2011-09-29 | 2012-06-20 | 中国石油大学(华东) | Remote exploration method for transmitting and receiving dipole transverse waves in well |
| CN102748013A (en) * | 2011-04-20 | 2012-10-24 | 中国科学院声学研究所 | Low-frequency dipole transmitting transducer |
| CN102877839A (en) * | 2012-10-10 | 2013-01-16 | 中国石油天然气集团公司 | Acoustic transducer and logging device thereof |
| CN102877827A (en) * | 2012-10-10 | 2013-01-16 | 中国石油天然气集团公司 | Acoustic system module of acoustic logging while drilling |
| CN102943668A (en) * | 2012-11-14 | 2013-02-27 | 中国石油大学(华东) | Underground drilling-following acoustic signal transmission device |
| CN106401573A (en) * | 2016-12-05 | 2017-02-15 | 中国石油大学(华东) | Underground information acoustic wave signal generating system |
-
2008
- 2008-06-19 CN CNU2008201087267U patent/CN201241697Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748013A (en) * | 2011-04-20 | 2012-10-24 | 中国科学院声学研究所 | Low-frequency dipole transmitting transducer |
| CN102748013B (en) * | 2011-04-20 | 2014-12-31 | 中国科学院声学研究所 | Low-frequency dipole transmitting transducer |
| CN102508299A (en) * | 2011-09-29 | 2012-06-20 | 中国石油大学(华东) | Remote exploration method for transmitting and receiving dipole transverse waves in well |
| CN102508299B (en) * | 2011-09-29 | 2013-06-19 | 中国石油大学(华东) | Remote exploration method for transmitting and receiving dipole transverse waves in well |
| CN102877839A (en) * | 2012-10-10 | 2013-01-16 | 中国石油天然气集团公司 | Acoustic transducer and logging device thereof |
| CN102877827A (en) * | 2012-10-10 | 2013-01-16 | 中国石油天然气集团公司 | Acoustic system module of acoustic logging while drilling |
| CN102877827B (en) * | 2012-10-10 | 2015-03-11 | 中国石油天然气集团公司 | Acoustic system module of acoustic logging while drilling |
| CN102877839B (en) * | 2012-10-10 | 2015-05-20 | 中国石油天然气集团公司 | Acoustic transducer and logging device thereof |
| CN102943668A (en) * | 2012-11-14 | 2013-02-27 | 中国石油大学(华东) | Underground drilling-following acoustic signal transmission device |
| CN102943668B (en) * | 2012-11-14 | 2014-06-18 | 中国石油大学(华东) | Underground drilling-following acoustic signal transmission device |
| CN106401573A (en) * | 2016-12-05 | 2017-02-15 | 中国石油大学(华东) | Underground information acoustic wave signal generating system |
| CN106401573B (en) * | 2016-12-05 | 2019-08-06 | 中国石油大学(华东) | Down-hole information acoustic signals generating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |