CN1088142C - Acoustic detector for oil well radio transmitted pressure and temp. parameters - Google Patents
Acoustic detector for oil well radio transmitted pressure and temp. parameters Download PDFInfo
- Publication number
- CN1088142C CN1088142C CN94114215A CN94114215A CN1088142C CN 1088142 C CN1088142 C CN 1088142C CN 94114215 A CN94114215 A CN 94114215A CN 94114215 A CN94114215 A CN 94114215A CN 1088142 C CN1088142 C CN 1088142C
- Authority
- CN
- China
- Prior art keywords
- sound
- acoustic emission
- transducer
- frequency
- amplifier
- 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
Links
Images
Abstract
The present invention relates to a sound wave detector for oil well radio transmitted pressure and temperature parameters. The present invention is composed of an underground transmitting device and a ground receiving device, wherein the underground transmitting device is composed of a pressure sensor, a temperature sensor, a sound transmitting energy converter and a corresponding underground transmitting circuit; the ground receiving device is composed of a sound reception energy converter, a frequency selection preamplifier, a phase locking amplifier, a display, etc. The present invention is characterized in that the electricity-sound-electricity energy conversion of high efficiency is obtained by a low-frequency sound wave segment by a method using an oil tube as a sound transmission information channel through the sound transmitting energy converter and the sound receiving energy converter which are specially designed into an apical angle theta with a cone; transmission without a cable is realized, and the underground parameters can be monitored at any time. The present invention has the advantages of convenient installation and use and great cost saving.
Description
A kind of checkout gear that utilizes the sound transmission to detect the sonic transmissions pressure and temperature parameter of oil well downhole parameters (well temperature, well are pressed) that relates to.
Existing well hot-well presses isoparametric observation procedure a lot of, but the method for transmitting signal parameter from the down-hole earthward all adopts the wire transmission of the cable that lays specially.This just must send the gap that the respective sensor of cable and desired parameters is passed between oil pipe and the bustle pipe into the down-hole, and the signal that all sensors in down-hole obtain is transported to the receiving system on ground again by this cabling.Less in view of crack between most of oil well bustle pipes and the oil pipe, and oil well reaches more than the thousands of rice deeply, and therefore often need stop production is put into the shaft bottom with cable, add in 1 year and repeatedly test again, thereby it is costly to waste time and energy, and influences oil production.And above-mentioned these log parameter equipment majorities also need import, cost an arm and a leg, and expend a large amount of foreign exchanges.Other has the United States Patent (USP) " telemetry system " of the patent No. 4293936, studied the sound transmission characteristics of drilling pipe in the drilling well in great detail, and provide a plurality of low-frequency transmission through frequency, though silo launcher and aboveground receiving system are also arranged as telemetry system, but its concrete structure all need depend on a plurality of repeaters that are installed in the drilling pipe, each comprises circuit such as the sound source of special setting and corresponding electronic device, equipment complexity again.
The objective of the invention is to overcome above shortcoming, a kind of down-hole pressure temperature of promptly and accurately understanding is provided, with the convenient checkout gear that utilizes sonic transmissions pressure and temperature parameter that hole condition is made accurate judgment.
The present invention implements like this: the sensor that is provided with by the down-hole is encoded into acoustic signal with pressure, temperature parameter, silo launcher through custom-designed acoustic emission transducer and corresponding radiating circuit formation, by the aboveground receiving system that sound reception transducer etc. is formed, obtaining the down-hole after deciphering in real time has related parameter.Specifically form silo launcher, and except that the sensing head of pressure sensor, all be sealed in the metal shell by pressure, temperature pick up and custom-designed acoustic emission transducer and corresponding radiating circuit; The sound receiving transducer of aboveground receiving system receives the single-frequency of acoustic emission transducer, thereafter with the frequency-selecting preamplifier, and lock-in amplifier and register, display carries out record.
Provide specific embodiments of the invention in detail below in conjunction with accompanying drawing.
Fig. 1 acoustic emission (reception) transducer cross-sectional view.
Fig. 2 general structure schematic diagram of the present invention
Fig. 3 silo launcher electricity functional-block diagram
The aboveground receiving system electricity of Fig. 4 functional-block diagram
Wherein: 1. pressure sensor; 2. pressure-frequency converter; 3. temperature-frequency converter; 4. temperature pick up; 5. power supply; 6. crystal oscillator and frequency divider; 7. countdown circuit; 8. cycle frequency divider; 9. temperature-pressure converter; 10. electronic switching circuit; 11. start control circuit; 12. timer circuit; 13. shutdown control circuit; 14. waveform transformation circuit; 15. voltage amplifier circuit; 16. power amplification circuit; 17. acoustic emission transducer; 18. sound reception transducer; 19. frequency-selecting preamplifier; 20. lock-in amplifier; 21. register; 22. display; 23. aboveground receiving system; 24. oil pipe; 25. bustle pipe; 26. silo launcher; 27. oil reservoir; 28. screen casing; 29. shell; 30. external screw thread; 31. front shroud; 32. piezoelectric ceramics disk heap; 33. give the stress screw rod; 34. electrode disk; 35. back loading body.
As shown in Figure 2, this device is by comprising the silo launcher 26 that pressure sensor 1, temperature pick up 4, acoustic emission transducer 17 and corresponding radiating circuit constitute and comprising sound reception transducer 18, the frequency-selecting preamplifier 19 that successively is attached thereto, aboveground receiving system 23 two large divisions that lock-in amplifier 20 and register 21 and display 22 constitute form.End face is fixed together with bolt and well head place oil pipe medial surface before the front shroud of the sound reception transducer 18 in the wherein above-mentioned aboveground receiving system 23.Its electrical output signal links to each other with frequency-selecting preamplifier 19, links to each other with register 21 with lock-in amplifier 20 and display 22 afterwards.Above-mentioned silo launcher 26 is sealed in the metal shell and also is fixed on screen casing 28 lower ends with external screw thread 30, and the front end face of acoustic emission transducer 17 front shrouds in it is fixed as one with screen casing 28 medial surfaces.This acoustic emission transducer 17 links to each other with voltage amplifier circuit 15 with power amplification circuit 16 as the load of down-hole radiating circuit.And the pressure sensor 1 and the temperature pick up 4 of impression end, the analog signal of output converts the digital signal corresponding frequency to through pressure-frequency converter 2 and temperature-frequency converter 3 respectively and is applied on temperature-pressure converter 9 when the pressure (or temperature) of down-hole changes, this temperature and pressure converter 9 is controlled by timer circuit 12, open, shutdown control circuit 11,13, electronic switching circuit 10 and cycle frequency divider 8, countdown circuit 7, make pressure-temperature signal take turns on request to change and emission, when pressure and temp parameter all after the battery has fired, automatically powered-down is ready whole device.This state power consumption 10 μ A are during emission about power consumption 400mA.The data signal of technical assurance after according to pressure (or temperature) frequency division, control is by crystal oscillator and frequency divider 8, waveform changing circuit 14, the converter circuitry that voltage amplifier circuit 15 and power amplification circuit 16 constitutes, promptly this circuit carrier frequency ping of providing frequency stabilization, emission dutycycle to be stressed (or temperature) control for acoustic emission transducer makes acoustic emission transducer 17 launch correspondingly acoustic signal earthward by the cycle of institute's detected pressures (or temperature).With the oil pipe is that transmission medium is launched earthward.For making tranmitting frequency stable, can adopt crystal oscillating circuit, obtain the best transmission frequency band behind the crystal oscillator frequency division, to improve the electricity-sound conversion efficiency of acoustic emission transducer 17.Above-mentioned pressure sensor 1 can adopt a chord sensor, and temperature pick up 4 is a thermistor.5 of power supplys adopt the high power capacity High Temperature Lithium Cell.Should emphasize whole silo launcher 26 in the heatproof of down-hole, withstand voltage and sealing performance is quite important, other all is sealed in the metal shell 29 except the sensing head of pressure sensor 1.
This device realizes that the sound reception transducer 18 of acoustic emission transducer 17 harmony-electricity conversion that electricity-sound is changed is structurally similar, its size difference.As example as shown in Figure 1, the driving element of acoustic emission transducer 17 is to be stacked by many parallel piezoelectric ceramic disks, and rely on and to give stress screw rod 33 with column back loading body 35 with have the round table-like front shroud 31 of conical bore, piezoelectric ceramics disk heap 32 is fixed on therebetween is integral.On circuit, link to each other, and adopt an existing sound transmission to see through frequency with power amplification circuit 16.This device adopts eight lead titanate piezoelectric ceramics disks, and the electrode disk 34 that coincide with the conducting resinl bonding between sheet is with constantan sheet disk of making and the coign portion that supplies binding in parallel.For reducing sound transmission loss, sound transmission concentration of energy is transmitted in the oil transportation tube wall, it is poroid that the front end face of front shroud 31 is designed to circular cone, cone-apex angle θ is (cone-apex angle of sound reception transducer then is θ ' ≈ 3 θ) in 32 °～40 ° scopes, can select for use metal material duralumin to make, above-mentioned back loading body 35 and give stress screw rod 33 and all select for use the 45# steel to make.
In sum, the invention provides a kind of utilize the all-bottom sound wave band and with oil pipe as the method for sound transmission information channel and corresponding silo launcher and aboveground receiving system, rely on custom-designed acoustic emission transducer harmony receiving transducer can obtain high efficiency electricity-sound-electric energy conversion, realized the convenient and practical monitoring of the no cable transmission of oil well pressure temperature parameter.Be noted that sound transmission signal to different well depths, different well ' s conditions, should seek its optimum sound and keep pouring in defeated frequency band,, improve monitoring distance to reduce the decay of transmission signal as far as possible.This installs preliminary actual measurement can reach 2 kms, easy to install, saves assets in a large number.
Claims (3)
1 one kinds of checkout gears that utilize sonic transmissions pressure and temperature parameter, it has silo launcher [26] and aboveground receiving system [23], it is characterized in that silo launcher [26] has pressure sensor [1], temperature pick up [4], acoustic emission transducer [17] and corresponding radiating circuit, and except that the sensing head of pressure sensor [1], all be sealed in the silo launcher [26] in the metal shell [29], be fixed on screen casing [28] lower end with external screw thread [30], the front end face that makes acoustic emission transducer [17] front shroud [31] in it is fixed as one with the medial surface of screen casing [28], then links to each other with voltage amplifier with power amplifier [16] as the acoustic emission transducer [17] of down-hole radiating circuit load; Aboveground receiving system [23] comprises sound reception transducer [18], frequency-selecting preamplifier [19], lock-in amplifier [20] and register [21], display [22], and end face is fixing with well head place oil pipe [24] medial surface with bolt before sound reception transducer [18] front shroud in the aboveground receiving system [23], its electrical output signal links to each other with frequency-selecting preamplifier [19], links to each other with lock-in amplifier [20], register [21] and display [22] afterwards.
2 devices according to claim 1, it is characterized in that above-mentioned acoustic emission transducer [17] by many parallel piezoelectric ceramic disks [32] that stack, rely on and to give stress screw rod [33] and back loading body [35] and the round table-like front shroud [31] that has a conical bore are piled [32] to the piezoelectric ceramics disk be fixed on therebetween and be integral.
3 devices according to claim 1, the front end face cone-apex angle of front shroud [31] that it is characterized in that acoustic emission transducer [17] is between 32 °-40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94114215A CN1088142C (en) | 1994-12-05 | 1994-12-05 | Acoustic detector for oil well radio transmitted pressure and temp. parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94114215A CN1088142C (en) | 1994-12-05 | 1994-12-05 | Acoustic detector for oil well radio transmitted pressure and temp. parameters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1124319A CN1124319A (en) | 1996-06-12 |
| CN1088142C true CN1088142C (en) | 2002-07-24 |
Family
ID=5037125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94114215A Expired - Fee Related CN1088142C (en) | 1994-12-05 | 1994-12-05 | Acoustic detector for oil well radio transmitted pressure and temp. parameters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088142C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453991C (en) * | 2005-02-07 | 2009-01-21 | 哈尔滨理工大学 | Treating meter and signal measurement for semiconductive high-molecular material pressure and temp sensor |
| CN101178007B (en) * | 2007-12-07 | 2011-03-02 | 北京蔚蓝仕科技有限公司 | Diaphragm-type optical-fiber intelligent well pressure and temperature sensing unit |
| CN101220742B (en) * | 2008-02-03 | 2012-02-08 | 王晓东 | Modulation transmitting and analyzing device for sound wave in oil well solid phase medium |
| CN101783714B (en) * | 2009-01-21 | 2013-05-15 | 北京理工大学 | Method and device for acquiring transmission data |
| CN101701519B (en) * | 2009-10-28 | 2013-07-24 | 南京航空航天大学 | Deep well unpowered data transmission device |
| CN101845950B (en) * | 2010-04-20 | 2013-03-27 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Continuous oil pipe operation pit bottom wireless data transmission system |
| CN101942987B (en) * | 2010-08-13 | 2013-06-19 | 中国海洋石油总公司 | Simple sonic logger detection, calibration and ruling method |
| CN102444399A (en) * | 2010-10-11 | 2012-05-09 | 李相方 | High resolution drilling fluid returning flow meter |
| CN102305065A (en) * | 2011-06-16 | 2012-01-04 | 西安思坦仪器股份有限公司 | Wireless signal transmission method and system for oil and gas wells |
| EP2573316A1 (en) * | 2011-09-26 | 2013-03-27 | Sercel | Method and Device for Well Communication |
| CN105443117B (en) * | 2015-11-24 | 2018-09-28 | 浙江大学 | A kind of acoustic logging system |
| CN106677769B (en) * | 2017-02-22 | 2020-02-07 | 中煤科工集团西安研究院有限公司 | Underground coal mine sound wave transmission device and method |
| CN112636806B (en) * | 2020-11-23 | 2023-09-08 | 中石化石油工程技术服务有限公司 | Drill collar type underground information sound wave transmission relay device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697940A (en) * | 1968-08-23 | 1972-10-10 | Bohdan Jiri Berka | Signalling system for bore logging |
| US4283780A (en) * | 1980-01-21 | 1981-08-11 | Sperry Corporation | Resonant acoustic transducer system for a well drilling string |
| US4293936A (en) * | 1976-12-30 | 1981-10-06 | Sperry-Sun, Inc. | Telemetry system |
| EP0552833A1 (en) * | 1992-01-21 | 1993-07-28 | Anadrill International SA | Sonic vibration telemetering system |
-
1994
- 1994-12-05 CN CN94114215A patent/CN1088142C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697940A (en) * | 1968-08-23 | 1972-10-10 | Bohdan Jiri Berka | Signalling system for bore logging |
| US4293936A (en) * | 1976-12-30 | 1981-10-06 | Sperry-Sun, Inc. | Telemetry system |
| US4283780A (en) * | 1980-01-21 | 1981-08-11 | Sperry Corporation | Resonant acoustic transducer system for a well drilling string |
| EP0552833A1 (en) * | 1992-01-21 | 1993-07-28 | Anadrill International SA | Sonic vibration telemetering system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1124319A (en) | 1996-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1088142C (en) | Acoustic detector for oil well radio transmitted pressure and temp. parameters | |
| US4302826A (en) | Resonant acoustic transducer system for a well drilling string | |
| US4283780A (en) | Resonant acoustic transducer system for a well drilling string | |
| US3790930A (en) | Telemetering system for oil wells | |
| US5295548A (en) | Bottom-hole information collecting equipment | |
| JPH07294658A (en) | Signal transmission device and method | |
| CN107688100A (en) | A kind of pipeline stream flow monitoring self-powered sensor based on vortex-induced vibration | |
| CN102901440B (en) | Wireless sensory detection method for tunnel environment | |
| CN103162889A (en) | Wireless hollow inclusion strainmeter and method | |
| CN104197890B (en) | A kind of device and method measuring borehole wall surface Two-dimensional strain | |
| EP2277111A1 (en) | System, device and associated methods for monitoring a physical condition or operating performance of a structure | |
| CN103732858B (en) | Method and apparatus for well communication | |
| CN204945097U (en) | For the waveguide rod of acoustic emission detection | |
| CN101539015A (en) | Underground wireless pressure transmission transmitter | |
| CN202100254U (en) | Cableless signal transmission system for oil and gas wells | |
| CN106401628A (en) | Tightness degree test anchor rod and tightness degree test system | |
| CN201334905Y (en) | Underground wireless pressure transmission transmitter | |
| CN114607320B (en) | Broadband ultrasonic frequency shift circulation enhanced coal seam anti-reflection gas extraction device and method | |
| CN202501198U (en) | Sensor assembly used for monitoring leakage of natural gas transmission pipeline | |
| CN201428450Y (en) | Acoustic system of octa-sector cement bond imaging log | |
| CN204457739U (en) | A kind of injection well pipe column forces testing device | |
| CN1204400C (en) | New technological method-1 for detecting shear wave speed in geotechnical static and dynamic triaxial instrument | |
| CN203271732U (en) | Storage type sound wave density-variable logger | |
| CA3092655C (en) | Combined power source for long term operation of downhole gauges | |
| CN206208348U (en) | The acoustic measurement hydrogeology device for seeing water level in borehole long |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1042917 Country of ref document: HK |