CN2802085Y - Acoustic system of digital acoustic log equipment - Google Patents
Acoustic system of digital acoustic log equipment Download PDFInfo
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- CN2802085Y CN2802085Y CN 200520084334 CN200520084334U CN2802085Y CN 2802085 Y CN2802085 Y CN 2802085Y CN 200520084334 CN200520084334 CN 200520084334 CN 200520084334 U CN200520084334 U CN 200520084334U CN 2802085 Y CN2802085 Y CN 2802085Y
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- acoustic
- logging instrument
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- transmitting
- transducer
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Abstract
The utility model relates to an oil field logging instrument, particularly to an acoustic system of a digital acoustic logging instrument. The utility model comprises a cable, a housing body connected to the cable and an acoustic isolator arranged on the housing, wherein the upper part of the acoustic isolator is a transmitting area and the lower part is a receiving area; the transmitting area is composed of two transmitting transducers, and the receiving area comprises four receiving transducers. The utility model has the effect that the spacing of the acoustic system of digital acoustic logging instrument is longer through transmission by the transmitting transducer T1 for measuring the elastic modulus of rock formations, computing the strength of the rock formations and checking the fracturing effect and well cementing quality, etc; the acoustic system of digital acoustic logging instrument is more accurate than the traditional compensation acoustic wave in aspects of computing the formation porosity and judging an air layer; the spacing of the acoustic system of digital acoustic logging instrument is shorter through transmission by the transmitting transducer T2 for measuring the arrival time of the head wave of an acoustic wave train and measuring the velocity of propagation of the formation, and the data is used for computing formation porosity and determining an air layer; the T1 and the T2 transmit alternately to have good borehole compensation action.
Description
One, technical field: the utility model relates to a kind of oil reservoir logging instrument, particularly a kind of acoustic sonde of digital acoustic logging instrument.
Two, background technology: initial acoustic logging is only write down Mintrop wave then or amplitude, to be used for calculating formation porosity and to estimate the outer Cementation Quality of sleeve pipe.Develop the long spaced acoustilog that writes down longitudinal and transverse wave-wave shape afterwards, and can in hard formation, obtain the longitudinal and transverse ripple time difference and decay.On this basis, further strengthen spacing, increase the receiver number, reduce the reception spacing, produced array sonic log.Present domestic traditional acoustic logging instrument is two two architecture that quiet down, and spacing, spacing are fixed, and have to be subjected to wellbore effect bigger problems such as longitudinal resolution rate variance.
Three, summary of the invention: the purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of acoustic sonde of digital acoustic logging instrument novel, array is provided.
Its technical scheme is: the shell (2) that comprises cable (1), connection and cable, acoustic isolater (3) is housed on the shell (2), and acoustic isolater (3) top is launch site (4), and the bottom is reception area (5), it is characterized in that: described launch site (4) (T1 T2) forms by two transmitting transducers; Described reception area (5) comprise four receiving transducers (R1, R2, R3, R4).
Preferable technical scheme is: described transmitting transducer (T1, T2) and receiving transducer (R3 R4) is provided with window (6) on every side for R1, R2; Acoustic isolater (3) is provided with cutting (7) on every side.
In addition, transmitting transducer (T1 T2) is wrapped in respectively in the round barrel shape sheath (8), and four receiving transducers (R1, R2, R3, R4) integral body is wrapped in the leather bag (9); Described sheath (8) and leather bag (9) are communicated with, and fill with silicone oil.
Moreover described transmitting transducer (T1, T2) and receiving transducer (R3 R4) adopts piezoceramics crystal for R1, R2.
Effect of the present utility model is: by being launched by transmitting transducer T1, its spacing is longer, can measure the modulus of elasticity of rock stratum, be used to find the solution rock strength, check fracturing effect and cementing quality etc., find the solution formation porosity and judge aspect the gas-bearing formation more more accurate than traditional compensation sound wave; By transmitting transducer T2 emission, spacing is shorter, and the Mintrop wave of measuring acoustic wavetrain reaches the time, is used to measure the acoustic wave propagation velocity on stratum, and its data is used for calculating formation porosity and definite gas-bearing formation; And, form good borehole compensation effect by alternately emission of T1, T2.
In addition, above-mentioned device, component of machine and lead etc. load in the leather bag, fill in the capsule with silicone oil, have both protected the component in the capsule, and acoustic signals can well outwards be coupled.The rubber pocket outside is the steel containment vessel of cutting, supports whole sonic system.Position at transducer has window, guarantees that acoustic wave energy is arrived receiving transducer to the acoustic signal that earth-layer propagation and earth-layer propagation return.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is sectional drawings of launch site of the present utility model;
Accompanying drawing 3 is sectional drawings of reception area of the present utility model.
Five, the specific embodiment:
In conjunction with the accompanying drawings, the utility model will be further described:
Its technical scheme is: comprise the shell 2 of cable 1, connection and cable, acoustic isolater 3 is housed on the shell 2, acoustic isolater 3 tops are launch site 4, and the bottom is a reception area 5, and wherein, described launch site 4 is by two transmitting transducer T1, and T2 forms; Described reception area 5 comprises four receiving transducer R1, R2, and R3, R4, wherein, 2 feet of transmitting transducer T1 and transmitting transducer T2 distances, 3 feet of transmitting transducer T2 and receiving transducer R1 distances; 0.5 foot of receiving transducer R1, R2, each distance of R3, R4, reception area 5 is positioned at instrument bottom, 3 feet of nearest transmitting transducers.The response frequency scope of receiving crystal is at 1-20KHz.
Described transmitting transducer T1, T2 and receiving transducer R1, R2, R3, R4 adopts piezoceramics crystal, and is provided with window 6 on every side, guarantees that acoustic wave energy is arrived receiving transducer to the acoustic signal that earth-layer propagation and earth-layer propagation return; Be provided with cutting 7 around the acoustic isolater 3, be used for the sound insulation effect.
In addition, in the use of Sonic Digital Tool device, transmitting transducer T1, T2 are wrapped in respectively in the round barrel shape sheath 8, four receiving transducer R1, and R2, R3, R4 integral body is wrapped in the leather bag 9; Described sheath 8 and leather bag 9 are communicated with, and fill with silicone oil, like this, have both protected the component in the capsule, and acoustic signals can well outwards be coupled.The leather bag outside is the steel containment vessel of cutting.Have window 6 in the position of transducer, guarantee that acoustic wave energy is arrived receiving transducer to the acoustic signal that earth-layer propagation and earth-layer propagation return.
Basic functional principle is as follows:
By T1 emission, its spacing is longer, can measure the modulus of elasticity of rock stratum, be used to find the solution rock strength, check fracturing effect and cementing quality etc., find the solution formation porosity and judge aspect the gas-bearing formation more more accurate than traditional compensation sound wave.
By the T2 emission, spacing is shorter, and the Mintrop wave of measuring acoustic wavetrain reaches the time, is used to measure the acoustic wave propagation velocity on stratum, and its data is used for calculating formation porosity and definite gas-bearing formation.
By alternately emission of T1, T2, form good borehole compensation effect.
The utility model is connected with digital sound wave electronic cartridge by top connection, has in the well logging field widely to use.
Claims (4)
1, a kind of acoustic sonde of digital acoustic logging instrument, the shell (2) that comprises cable (1), connection and cable, acoustic isolater (3) is housed on the shell (2), acoustic isolater (3) top is launch site (4), the bottom is reception area (5), it is characterized in that: described launch site (4) (T1 T2) forms by two transmitting transducers; Described reception area (5) comprise four receiving transducers (R1, R2, R3, R4).
2, acoustic sonde of digital acoustic logging instrument according to claim 1 is characterized in that: described transmitting transducer (T1, T2) and receiving transducer (R3 R4) is provided with window (6) on every side for R1, R2; Acoustic isolater (3) is provided with cutting (7) on every side.
3, acoustic sonde of digital acoustic logging instrument according to claim 2 is characterized in that: transmitting transducer (T1 T2) is wrapped in respectively in the round barrel shape sheath (8), and four receiving transducers (R1, R2, R3, R4) integral body is wrapped in the leather bag (9); Described sheath (8) and leather bag (9) are communicated with, and fill with silicone oil.
4, acoustic sonde of digital acoustic logging instrument according to claim 1 is characterized in that: described transmitting transducer (T1, T2) and receiving transducer (R3 R4) adopts piezoceramics crystal for R1, R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520084334 CN2802085Y (en) | 2005-06-17 | 2005-06-17 | Acoustic system of digital acoustic log equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520084334 CN2802085Y (en) | 2005-06-17 | 2005-06-17 | Acoustic system of digital acoustic log equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802085Y true CN2802085Y (en) | 2006-08-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520084334 Expired - Fee Related CN2802085Y (en) | 2005-06-17 | 2005-06-17 | Acoustic system of digital acoustic log equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN2802085Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196113B (en) * | 2006-12-07 | 2011-04-20 | 中国石油天然气集团公司 | Single-emitting five-receiving sonic system virtual two-emitting five-receiving sonic system method |
| CN102071932A (en) * | 2010-12-22 | 2011-05-25 | 杭州瑞利声电技术公司 | Acoustic system structure of acoustic velocity-segmented cement bond logging tool and logging method |
| CN101451432B (en) * | 2007-12-04 | 2012-07-18 | 中国石油天然气集团公司 | High precision digital sonic wave variable density calibration method |
| CN102787839A (en) * | 2012-08-23 | 2012-11-21 | 张景和 | Method for accurately drawing downhole conditions of oil field by acoustic emission located monitoring |
| CN102996118A (en) * | 2012-12-20 | 2013-03-27 | 西安思坦仪器股份有限公司 | Sound wave logging instrument with sound insulation function |
| CN103485765A (en) * | 2012-06-12 | 2014-01-01 | 辽宁瑞达石油技术有限公司 | Oil-water distribution tester and oil-water distribution test method |
| CN114687733A (en) * | 2022-06-01 | 2022-07-01 | 西安石油大学 | Sound wave logging integrated receiving acoustic system structure with cooling module |
| CN115163052A (en) * | 2022-06-18 | 2022-10-11 | 杭州丰禾石油科技有限公司 | Parameter measurement method of ultrasonic borehole diameter and ultrasonic borehole diameter logging-while-drilling device |
-
2005
- 2005-06-17 CN CN 200520084334 patent/CN2802085Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196113B (en) * | 2006-12-07 | 2011-04-20 | 中国石油天然气集团公司 | Single-emitting five-receiving sonic system virtual two-emitting five-receiving sonic system method |
| CN101451432B (en) * | 2007-12-04 | 2012-07-18 | 中国石油天然气集团公司 | High precision digital sonic wave variable density calibration method |
| CN102071932A (en) * | 2010-12-22 | 2011-05-25 | 杭州瑞利声电技术公司 | Acoustic system structure of acoustic velocity-segmented cement bond logging tool and logging method |
| CN103485765A (en) * | 2012-06-12 | 2014-01-01 | 辽宁瑞达石油技术有限公司 | Oil-water distribution tester and oil-water distribution test method |
| CN102787839A (en) * | 2012-08-23 | 2012-11-21 | 张景和 | Method for accurately drawing downhole conditions of oil field by acoustic emission located monitoring |
| CN102996118A (en) * | 2012-12-20 | 2013-03-27 | 西安思坦仪器股份有限公司 | Sound wave logging instrument with sound insulation function |
| CN102996118B (en) * | 2012-12-20 | 2015-07-15 | 西安思坦仪器股份有限公司 | Sound wave logging instrument with sound insulation function |
| CN114687733A (en) * | 2022-06-01 | 2022-07-01 | 西安石油大学 | Sound wave logging integrated receiving acoustic system structure with cooling module |
| CN115163052A (en) * | 2022-06-18 | 2022-10-11 | 杭州丰禾石油科技有限公司 | Parameter measurement method of ultrasonic borehole diameter and ultrasonic borehole diameter logging-while-drilling device |
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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: 20060802 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |