CN2577297Y - Full-frequency acoustic sound-insulating body for logging instrument - Google Patents
Full-frequency acoustic sound-insulating body for logging instrument Download PDFInfo
- Publication number
- CN2577297Y CN2577297Y CN 02285621 CN02285621U CN2577297Y CN 2577297 Y CN2577297 Y CN 2577297Y CN 02285621 CN02285621 CN 02285621 CN 02285621 U CN02285621 U CN 02285621U CN 2577297 Y CN2577297 Y CN 2577297Y
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- sound
- insulating body
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Abstract
The utility model relates to a full-frequency acoustic sound-insulating body for a logging instrument, which has low frequency and low sound speed. The utility model can realize the attenuation of direct waves in an instrument. The sound-insulating body is provided with a plurality of segments of half pipe bodies (1), and both ends of each segment of a half pipe body are respectively provided with a convex groove and a concave groove which are overlapped with each other horizontally to form a half combined outer shell (6). An engagement point between one convex groove and one concave groove which are arranged at both ends of one segment is provided with a rubber pad (2). Two half combined outer shells are jointed with each other, and a clamping appliance is used for clamping the two half combined outer shells, wherein, a joint point is also provided with a rubber pad. The rubber pads arranged in the sound-insulating body have the action of the sound-insulating body, and the rubber pads are pressed but not pulled after combination, and thereby. Design goals can be achieved. The acoustic slowness (the reciprocal of speed, 1/V) of metal steel is 187 mu s/m, and the slowness of an outer shell of an acoustic instrument after grooving is 800 mu s/m more or less. The utility model has the sound-insulating effects that the slowness is 1810 mu s/m under an extreme condition, the range is from 0 to 5KHz, and attenuation is obtained in the x direction, the y direction, and the z direction.
Description
(1) technical field:
The utility model belongs to oil logging tool, particularly relates to logging instrumentation full rate sound wave sound insulator.
(2) background technology:
Acoustic logging is in order to measure the information of acoustic wave on stratum.When transmitting probe is worked, also to there be sound wave to arrive receiving transducer through sound wave system (instrument internal) from transmitting probe.Close when the travel-time of travel-time of this sound wave and the formation wave that we need obtain, perhaps during the too big differentiation that influences formation wave of amplitude, the signal that receiving transducer receives will produce stack.Make measurement result produce error.The sound insulation way of tradition acoustic wave apparatus is cutting on the metal shell of instrument, makes travel path lengthening, the decay of sound wave strengthen, thereby reaches the purpose of sound insulation.The sound wave frequency range of this way more than 10KHZ is effective.The aging of low frequency sound wave subtracts very slow, and we will carry out the low speed acoustic measurement in lower frequency ranges, and the way of the sort of cutting on tool housing can not meet the demands.
(3) utility model content:
Technical problem to be solved in the utility model is at the problem that exists in the background technology, and a kind of low velocity of sound makes the big high attenuation of direct wave in instrument internal logging instrumentation full rate sound wave sound insulator that solves is provided.
The invention for solving the technical problem can reach by following technical solution: this sound insulator has half body of more piece, that each pipe joint body two ends forms is protruding, groove overlaps up and down and constitutes combination one half-shells, every joint two ends are protruding, groove interlock place has rubber blanket, two halves combination shell blocks share jig, and apposition position also has rubber blanket.
Rubber in the above sound insulator is lined with the sound insulator effect, combination back rubber blanket pressurized and non-tension under the pulling force effect, thereby can reach purpose of design.
The utility model is compared with background technology has following beneficial effect: the acoustic slowness of metal steelframe (1/V reciprocal of speed) is 187us/m, and the slowness of the acoustic wave apparatus shell after the cutting is about 800us/m.Defening effect of the present utility model is that slowness is 1810us/m under the limiting case; Amplitude obtains decay on x, y, three directions of z in 0～5khz scope.
(4) description of drawings:
Accompanying drawing 1 is conventional sound insulator structural drawing;
Accompanying drawing 2 is half structural drawing of the utility model sound insulator;
Accompanying drawing 3 is for containing the logging instrumentation assembly drawing of sound insulator 3;
Accompanying drawing 4 is fundamental diagrams after Fig. 2 tension.
(5) embodiment:
Below in conjunction with the drawings and specific embodiments will the utility model is described in further detail:
By shown in Figure 2, this sound insulator has half body of more piece 1, and that each pipe joint body two ends forms is protruding, groove overlaps up and down and constitutes combination one half-shells 6, and every joint two ends are protruding, groove interlock place has rubber blanket 2, two halves combination shell blocks share jig, and apposition position also has rubber blanket.
In such scheme,, circuit 5, receiving transducer 4, sound insulator 1 and transmitting probe 6 are arranged on the well logger by shown in Figure 3.Half body of more piece can axially be severed along body, by the acute Cheng Jie of design, constitutes protruding, the groove of upper and lower overlap joint at every joint two ends, and two halves combination shell is assembled on the probe of two ends share jig.
Claims (1)
- A kind of logging instrumentation full rate sound wave sound insulator that relates to, contain sound insulator and interior rubber bladder (3) thereof on the logging instrumentation, it is characterized in that: this sound insulator has half body of more piece (1), that each pipe joint body two ends forms is protruding, groove overlaps up and down and constitutes combination one half-shells, every joint two ends are protruding, groove interlock place has rubber blanket (2), two halves combination shell blocks share jig, and apposition position also has rubber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285621 CN2577297Y (en) | 2002-11-07 | 2002-11-07 | Full-frequency acoustic sound-insulating body for logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285621 CN2577297Y (en) | 2002-11-07 | 2002-11-07 | Full-frequency acoustic sound-insulating body for logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577297Y true CN2577297Y (en) | 2003-10-01 |
Family
ID=33746587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02285621 Expired - Fee Related CN2577297Y (en) | 2002-11-07 | 2002-11-07 | Full-frequency acoustic sound-insulating body for logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577297Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712324A (en) * | 2014-12-11 | 2015-06-17 | 杭州丰禾石油科技有限公司 | Novel sound insulator well logging device for acoustic logging instrument and optimization design method |
| CN107843929A (en) * | 2017-09-13 | 2018-03-27 | 杭州瑞利声电技术公司 | A kind of sound insulating structure being used in acoustic logging |
-
2002
- 2002-11-07 CN CN 02285621 patent/CN2577297Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712324A (en) * | 2014-12-11 | 2015-06-17 | 杭州丰禾石油科技有限公司 | Novel sound insulator well logging device for acoustic logging instrument and optimization design method |
| CN104712324B (en) * | 2014-12-11 | 2018-01-19 | 杭州丰禾石油科技有限公司 | Novel sound body well logging apparatus and Optimal Design Method for acoustic logging instrument |
| CN107843929A (en) * | 2017-09-13 | 2018-03-27 | 杭州瑞利声电技术公司 | A kind of sound insulating structure being used in acoustic logging |
| CN107843929B (en) * | 2017-09-13 | 2019-05-17 | 杭州瑞利声电技术有限公司 | A kind of sound insulating structure in acoustic logging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |