CN205778832U - A kind of supersonic range finder of measurement while drilling hole diameter - Google Patents
A kind of supersonic range finder of measurement while drilling hole diameter Download PDFInfo
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- CN205778832U CN205778832U CN201620466517.4U CN201620466517U CN205778832U CN 205778832 U CN205778832 U CN 205778832U CN 201620466517 U CN201620466517 U CN 201620466517U CN 205778832 U CN205778832 U CN 205778832U
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- hole diameter
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Abstract
The utility model discloses the supersonic range finder of a kind of measurement while drilling hole diameter, including controlling and processing unit, ultrasonic signal transmitter unit and ultrasonic echo signal reception unit;Controlling to be connected with the input of ultrasonic signal transmitter unit with the outfan of processing unit, the input of outfan and control and processing unit that ultrasonic echo signal receives unit is connected;Also including that one or more ultrasonic transducer, ultrasonic signal transmitter unit are connected with the input of ultrasonic transducer, the outfan of ultrasonic transducer receives unit with ultrasonic echo signal and is connected.This apparatus structure is reasonable in design, easy to use, the advantage with equipment low-power consumption, small size, it is possible to measure hole diameter parameter in drilling process.
Description
Technical field
This utility model belongs to range unit technical field, relates to a kind of supersonic range finder, is specifically related to
A kind of supersonic range finder of measurement while drilling hole diameter.
Background technology
The hole diameter of open hole well is a basic parameter in drilling engineering, utilizes this parameter can estimate well cementation
The usage amount of cement, the change of hole diameter parameter can reflect the physical characteristic on stratum, can reflect wellbore trace
Quality, it is judged that drilling team construction the most reasonable.The measurement of current domestic open hole well hole diameter is typically all drilled well
Rear utilize the mechanical arm of wireline logging instrument to measure the size of open hole well hole diameter, it is impossible to accomplish at drilling process
The size of middle measurement hole diameter, i.e. cannot accomplish the measurement while drilling of hole diameter.
On the other hand, with boring radioactive logging instrument as with boring neutron porosity instrument, with boring density instrument etc.
Need the pop one's head in distance of the borehole wall of measuring instrument in drilling process that measurement result is corrected, otherwise measure
Result has multiple explanation, it is impossible to accurately judge the characteristic of institute's geodetic layer.
Utility model content
For the defect overcoming above-mentioned prior art to exist, the purpose of this utility model is to provide a kind of with brill
Measuring the supersonic range finder of hole diameter, this apparatus structure is reasonable in design, easy to use, it is possible to creeping into
Journey is measured hole diameter parameter.
This utility model is to be achieved through the following technical solutions:
The supersonic range finder of a kind of measurement while drilling hole diameter, including controlling and processing unit, ultrasonic signal
Transmitter unit and ultrasonic echo signal receive unit;Control the outfan with processing unit and ultrasonic signal
The input of transmitter unit is connected, and ultrasonic echo signal receives outfan and control and the processing unit of unit
Input be connected;Also including one or more ultrasonic transducer, ultrasonic signal transmitter unit is with ultrasonic
The input of wave transducer is connected, and the outfan of ultrasonic transducer receives unit phase with ultrasonic echo signal
Even.
Also include to carry out the real time clock unit of information exchange, massive store with control and processing unit
Device and external communication interface;Wherein:
Real time clock unit, is used for providing temporal information;
Mass storage, receives, for storing ultrasonic echo signal, the digital echo voltage that unit sends
Signal, and control the hole diameter result calculated with processing unit;
External communication interface, for realizing the information exchange of range unit and PC and MWD.
Control and processing unit is provided with PWM module, ADC and SPI module;PWM module is with ultrasonic
The input of ripple signal transmitter unit is connected, and ultrasound wave reclaims outfan and the ADC of signal receiving unit
It is connected.
Ultrasonic signal transmitter unit is made up of emission power, polarity switching and analog multichannel switch;Its
In: the power supply outfan of emission power is connected with the input of polarity switching analog switch, controls and locates
The PWM module outfan of reason unit is connected with the input of polarity switching.
Ultrasonic echo signal receives unit by analog multichannel switch, AGC signal amplification module and signal condition
Circuit forms;Wherein, the outfan of analog multichannel switch is connected with the input of AGC signal amplification module,
The outfan of AGC signal amplification module is connected with the input of signal conditioning circuit, signal conditioning circuit defeated
Go out end to be connected with the ADC of control and processing unit.
When ultrasonic transducer is multiple, multiple ultrasonic transducers are evenly distributed on a circumference.
Ultrasonic excitation signal frequency is 200~300KHz.
Ultrasonic signal transmitter unit can launch high-energy excitation signal, this high-energy excitation signal be by
Control and a pair opposite polarity that the PWM module outfan of processing unit sends and pulse width and pulse
The adjustable square wave of number controls.
Compared with prior art, this utility model has a following useful technique effect:
The supersonic range finder of measurement while drilling hole diameter disclosed in this utility model, including control and processing unit,
Ultrasonic signal transmitter unit and ultrasonic echo signal receive unit;Control and processing unit outfan with
The input of ultrasonic signal transmitter unit is connected, and ultrasonic echo signal receives outfan and the control of unit
It is connected with the input of processing unit;Also including one or more ultrasonic transducer, ultrasonic signal is launched
Unit is connected with the input of ultrasonic transducer, the outfan of ultrasonic transducer and ultrasonic echo signal
Reception unit is connected, and this range unit can be implemented in measurement while drilling hole diameter parameter in drillng operation, surveys with boring
Amount radioactive instrument is popped one's head in the distance of the borehole wall, in order to correcting with boring radioactive instrument measurement result, and also
May be used for the distance of other boreholes wall of popping one's head in brill apparatus measures, in order to make borehole correction.Main advantage is such as
Under:
1, the signal source of ultrasonic signal transmitter unit pumping signal of the present utility model is by controlling and processing unit
PWM (pulse width modulation) unit that carries provides, so can conveniently set up pulse signal frequency,
Dutycycle, pulse number etc..
2, the analog digital conversion of ultrasonic signal of the present utility model is mono-by the ADC controlled and processing unit carries
Unit completes, and so can save volume and cost, improve the reliability of system.
3, this utility model is made up of the chip of Highgrade integration, the advantage with equipment low-power consumption, small size.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is ultrasonic signal transmitter unit circuit theory diagrams of the present utility model;
Fig. 3 is that ultrasonic echo signal of the present utility model receives element circuit schematic diagram;
Fig. 4 is the circuit theory diagrams of signal conditioning circuit of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
See Fig. 1, the supersonic range finder of a kind of measurement while drilling hole diameter, including control and processing unit, surpass
Acoustic signals transmitter unit and ultrasonic echo signal receive unit;Ultrasonic signal transmitter unit, ultrasound wave
Echo signal reception unit is mutual with control and processing unit respectively;Also include one or more respectively with super
Acoustic signals transmitter unit and ultrasound wave reclaim the ultrasonic transducer that signal receiving unit is mutual;
Wherein: control and processing unit is provided with PWM module, ADC and SPI module;Ultrasound wave is believed
Number transmitter unit is made up of emission power, polarity switching and analog multichannel switch;Ultrasonic echo signal
Receive unit to be made up of analog multichannel switch, AGC signal amplification module and signal condition unit.
Ultrasonic transducer is high pressure resistant, and high temperature resistant, volume is little, the ultrasonic transducer that conversion efficiency is high,
On the one hand can launch ultrasound wave and convert electrical energy into mechanical energy, on the other hand can receive ultrasound wave by machinery
Can be converted to electric energy, in this utility model, ultrasonic transducer is the working method of internal loopback.
Also include to carry out the real time clock unit of information exchange, Large Copacity with control and processing unit respectively
Memorizer and external communication interface;Wherein:
Real time clock unit, is used for providing temporal information;
Mass storage, is used for storing digitized echo voltage signal and result of calculation;
External communication interface, for realizing the information exchange of range unit and PC and MWD.
See Fig. 2, the polarity that ultrasonic signal transmitter unit is mainly made up of emission power IC1, analog switch
Change-over circuit IC2, analog multichannel switch IC3 and ultrasonic transducer composition, IC4 is for controlling and processing single
Unit.
The power pole of emission power IC1 is connected with IC2 analog switch input.The GPIO2 mouth of IC4 controls
IC2 Enable Pin, makes IC2 start working.EPWM1A and EPWM1B is the PWM module output of IC4
End, their polarity be contrary (i.e. when EPWM1A is high level, EPWM1B must be low level,
When EPWM1A is low level, EPWM1B must be high level).It is so high level as EPWM1A
When EPWM1B is low level, the D1 end of IC2 and the conducting of S1A end, namely D1 end and IC1 power pole
Anode (V+) turns on, simultaneously the D2 end of IC2 and the conducting of S2A end, namely D2 end and IC1 power pole
Negative terminal (V-) conducting.When EPWM1A be low level EPWM1B be high level time, the D1 of IC2
End and S1B end turn on, namely negative terminal (V-) conducting of D1 end and IC1 power pole, the D2 of IC2 simultaneously
End and S2B end turn on, namely anode (V+) conducting of D2 end and IC1 power pole.So work as EPWM1A
When sending opposite polarity impulse wave with EPWM1B, D1 end and D2 end at IC2 will launch merit
The opposite polarity impulse wave that rate is bigger.Pulse number and dutycycle are by the depositor of the PWM module of IC4 certainly
Fixed.GPIO3, GPIO4, GPIO5 mouth of IC4 controls analog multichannel switch IC3 and realizes changing to be excited
Can select by device.
Seeing Fig. 3, ultrasonic echo signal receives unit mainly by ultrasonic transducer, analog multichannel switch
IC5, AGC signal amplification module IC6 and signal conditioning circuit etc. form.IC4 is for controlling and processing unit.
GPIO6, GPIO7, GPIO8 mouth of IC4 controls analog multichannel switch IC5 and realizes the choosing to transducer passage
Select.Echo-signal arrives input end of analog signal VIN+ and VIN-, IC4 of IC6 through analog multichannel switch IC5
GPIO9, GPIO10, SPISTEA, SPICLKA, SPSIMOA mouth respectively with AGC integrated circuit
TXEN, SLEEP, DATEN, CLK, SDATA mouth of IC6 is connected, it is achieved the automatic times magnification of IC6
The setting of number.Signal, after AGC amplifies, is exported by IC6 analog signal output OUT+, OUT-
To signal conditioning circuit.
Seeing Fig. 4, ultrasonic echo signal receives the difference that the signal conditioning circuit of unit is mainly made up of IC7
Signal turns single-ended signal circuit, the high pass filter being made up of IC8, the low pass filter etc. that is made up of IC9
Constitute.
Input echo-signal is had differential signal to be converted to single-ended signal and amplification by difference amplifier IC7 and R1
Effect, the size wherein changing R1 resistance can regulate the amplification of signal.
It is right that the combination of amplifier IC8 and resistance (R2, R3, R4, R5, R6) electric capacity (C1, C2) realizes
The high-pass filtering of signal.
The combination of amplifier IC9 and resistance (R7, R8, R9, R10, R11) electric capacity (C3, C4) realizes
Low-pass filtering to signal.
Then signal is coupled to the junction of R12 and R13 through C5.The effect of R12 and R13 is to returning
Ripple signal provides bias voltage, makes signal in the range of 0~VCC, in order to connect with the ADC0 port of IC4.
It is input to the ADC0 port of IC4 through amplification and filtered signal, through analog digital conversion, is converted to number
Word signal.Inside IC4, digital echo signals can be calculated echo-signal after a series of computing
The time of advent, thus calculate the ultrasonic transducer distance to reflecting surface.
Specific works process of the present utility model is:
Control and processing unit controls ultrasonic signal transmitter unit excitation ultrasound wave transducer 1 and launches ultrasonic
Ripple, ultrasound wave encounters borehole wall back reflection and returns, and then ultrasonic echo signal is changed by ultrasonic transducer 1
For voltage signal.Voltage signal realizes the dynamic amplification of echo voltage signal through AGC signal amplification module.Put
Voltage signal after great realizes the filtering of voltage signal through signal conditioning circuit, realizes differential voltage signal and turn
Single-ended voltage signal, is then passed to the ADC controlled and processing unit carries.ADC will simulation
Voltage signal become digital signal, control and digitized echo voltage signal carried out numeral by processing unit
Signal processing and numerical computations, calculate the time that echo-signal arrives, thus calculate ultrasonic transducer 1
Distance to reflecting surface.By that analogy, control and processing unit controls ultrasonic signal transmitter unit and excites super
Acoustic wave transducer 2 launches ultrasound wave, controls and processing unit is according to echo-signal, calculate ultrasonic waves
Energy device 2 is to the distance of reflecting surface;Control and processing unit controls ultrasonic signal transmitter unit excitation ultrasound ripple
Ultrasound wave launched by transducer 3, controls and processing unit is according to echo-signal, calculate ultrasonic transducer 3
Distance to reflecting surface.Obtain each transducer to after the distance of reflecting surface, control and processing unit can root
According to algorithm, calculate hole diameter.
Hole diameter result of calculation can send down-hole MWD (a kind of drilling well channel radio to by external communication interface
T unit), then by mud signal channel transfer to ground, current hole diameter after decoding, just can be shown on ground
Measurement result.Hole diameter result of calculation can also be stored in mass storage by acquisition time in down-hole,
After instrument returns to ground, the data stored are taken out, PC is checked result of calculation.
Claims (8)
1. the supersonic range finder of a measurement while drilling hole diameter, it is characterised in that include controlling and processing list
Unit, ultrasonic signal transmitter unit and ultrasonic echo signal receive unit;Control and the output of processing unit
End be connected with the input of ultrasonic signal transmitter unit, ultrasonic echo signal receive unit outfan and
Control to be connected with the input of processing unit;Also include one or more ultrasonic transducer, ultrasonic signal
Transmitter unit is connected with the input of ultrasonic transducer, the outfan of ultrasonic transducer and ultrasonic echo
Signal receiving unit is connected.
The supersonic range finder of measurement while drilling hole diameter the most according to claim 1, it is characterised in that
Also include to carry out the real time clock unit of information exchange, massive store with control and processing unit respectively
Device and external communication interface;Wherein:
Real time clock unit, is used for providing temporal information;
Mass storage, receives, for storing ultrasonic echo signal, the digital echo voltage that unit sends
Signal, and control the hole diameter result calculated with processing unit;
External communication interface, for realizing the information exchange of range unit and PC and MWD.
The supersonic range finder of measurement while drilling hole diameter the most according to claim 1, it is characterised in that
Control and processing unit is provided with PWM module, ADC and SPI module;PWM module is believed with ultrasound wave
The input of number transmitter unit is connected, and ultrasound wave reclaims the outfan of signal receiving unit and is connected with ADC.
The supersonic range finder of measurement while drilling hole diameter the most according to claim 3, it is characterised in that
Ultrasonic signal transmitter unit is made up of emission power, polarity switching and analog multichannel switch;Wherein:
The power pole of emission power is connected with the input of polarity switching analog switch, controls and processing unit
PWM module outfan is connected with the input of polarity switching.
The supersonic range finder of measurement while drilling hole diameter the most according to claim 3, it is characterised in that
Ultrasonic echo signal receives unit by analog multichannel switch, AGC signal amplification module and signal conditioning circuit
Composition;Wherein, the outfan of analog multichannel switch is connected with the input of AGC signal amplification module, AGC
The outfan of signal amplification module is connected with the input of signal conditioning circuit, the outfan of signal conditioning circuit
It is connected with the ADC of control and processing unit.
The supersonic range finder of measurement while drilling hole diameter the most according to claim 1, it is characterised in that
When ultrasonic transducer is multiple, multiple ultrasonic transducers are evenly distributed on a circumference.
The supersonic range finder of measurement while drilling hole diameter the most according to claim 1, it is characterised in that
Ultrasonic excitation signal frequency is 200~300KHz.
The supersonic range finder of measurement while drilling hole diameter the most according to claim 1, it is characterised in that
Ultrasonic signal transmitter unit can launch high-energy excitation signal, and this high-energy excitation signal is by controlling
A pair opposite polarity sent with the PWM module outfan of processing unit and pulse width and pulse number can
The square wave adjusted controls.
Priority Applications (1)
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CN201620466517.4U CN205778832U (en) | 2016-05-19 | 2016-05-19 | A kind of supersonic range finder of measurement while drilling hole diameter |
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CN201620466517.4U CN205778832U (en) | 2016-05-19 | 2016-05-19 | A kind of supersonic range finder of measurement while drilling hole diameter |
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Publication Number | Publication Date |
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CN205778832U true CN205778832U (en) | 2016-12-07 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107610275A (en) * | 2017-09-22 | 2018-01-19 | 浙江海洋大学 | A kind of new fishing boat informix recorder |
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2016
- 2016-05-19 CN CN201620466517.4U patent/CN205778832U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107610275A (en) * | 2017-09-22 | 2018-01-19 | 浙江海洋大学 | A kind of new fishing boat informix recorder |
CN107610275B (en) * | 2017-09-22 | 2023-12-19 | 浙江海洋大学 | Novel fishing boat information comprehensive recorder |
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