CN2674088Y - Instrument for testing resistivity of well drilling liquid - Google Patents
Instrument for testing resistivity of well drilling liquid Download PDFInfo
- Publication number
- CN2674088Y CN2674088Y CNU2004200024205U CN200420002420U CN2674088Y CN 2674088 Y CN2674088 Y CN 2674088Y CN U2004200024205 U CNU2004200024205 U CN U2004200024205U CN 200420002420 U CN200420002420 U CN 200420002420U CN 2674088 Y CN2674088 Y CN 2674088Y
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Abstract
The utility model relates to an instrument for testing resistivity of the well drilling liquid, which mainly solves the problem of low automaticity, complex operation, etc in the existing technology of the resistivity testing. The instrument for testing resistivity of the well drilling liquid comprises a sensor, a constant source generator, a signal amplifier, a temperature testing instrument, a module / number converter, a monolithic computer and a display panel which are all arranged in a casing (21); the devices can work under the control of a monolithic computer. The utility model is characterized in that the number of the resistivity of the mud in the standard temperature can be displayed with the automatic measurement.
Description
Technical field:
The utility model relates to a kind of petroleum exploration and development drilling fluid measurement mechanism, especially a kind of can measure automatically and the display standard temperature under the drilling fluid resistivity measurement instrument of mud resistivity numerical value.
Background technology:
Present domestic measurement mud resistivity mainly is to use the mud agar diffusion method, need be equipped with huge ground Alternating Current Power Supply instrument during measurement, the result who measures need just can obtain mud resistivity under the temperature at that time through artificial calculating, just can obtain being used in the mud resistivity value under the normal temperature of well log interpretation in handling after converting.
The utility model content:
The automaticity that exists in the existing mud resistivity measuring technique is low in order to overcome, the deficiency of complicated operation, the utility model provides a kind of drilling fluid resistivity measurement instrument, this kind drilling fluid resistivity measurement instrument have can measure automatically and the display standard temperature under the characteristics of mud resistivity numerical value.
Technical solutions of the utility model are: this kind drilling fluid resistivity measurement instrument, comprise the sensor that places in the housing, the constant-current source generator, signal amplifier, temperature meter, A/D converter, single-chip microcomputer, display board, wherein sensor has the potential difference test probe, the temperature test probe, its current electrode is connected with the constant current output of constant-current source generator, its temperature sensor signal output links to each other with the temperature measurement signal input of temperature meter, its potential difference signal output links to each other with the voltage signal input of signal amplifier, the temperature signal input of signal amplifier is connected to the temperature measurement signal output of temperature meter, the voltage of signal amplifier, the temperature signal output is connected to the voltage of A/D converter respectively, temperature simulation measuring-signal input, the voltage of A/D converter, the temperature digital signal output part is connected to the voltage of single-chip microcomputer respectively, the temperature digital signal input part, the demonstration signal output part of single-chip microcomputer links to each other with the demonstration signal input part of display board, and wherein temperature meter is made of temperature measurement probe and temperature corrector.
The beneficial effect that the utlity model has is: since take in the such scheme drilling fluid resistivity measurement instrument can be under the control of single-chip microcomputer with the potential difference signal of mud to be measured, temperature signal after proofreading and correct directly calculates the mud resistivity numerical value under the normal temperature after by analog-to-digital conversion, therefore the utlity model has can measure automatically and the display standard temperature under the characteristics of mud resistivity numerical value, improved the measurement efficient and the certainty of measurement of mud resistivity greatly; The utility model adopts dc battery jar power supply, inside to be made of precision electronic element in addition, makes that a whole set of measuring apparatus volume is little, in light weight, easy and simple to handle, is very suitable for the field work condition.
Description of drawings:
Accompanying drawing 1 is a composition schematic diagram of the present utility model;
1-constant current output among the figure, 2-current electrode, 3-potential difference signal output, 4-temperature sensor signal output, 5-temperature measurement signal input, 6-temperature measurement signal output, 7-temperature signal input, 8-voltage signal input, the 9-voltage signal output end, 10-temperature signal output, 11-voltage analog measuring-signal input, 12-temperature simulation measuring-signal input, 13-voltage digital signal output, 14-temperature digital signal output part, 15-voltage digital signal input, 16-temperature digital signal input part, 17-shows signal output part, and 18-shows signal input part, 19-potential difference test probe, 20-temperature test probe, the 21-housing.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, this kind drilling fluid resistivity measurement instrument comprises the sensor that places in the housing 21, the constant-current source generator, signal amplifier, temperature meter, A/D converter, single-chip microcomputer, display board, wherein sensor has potential difference test probe 19, temperature test probe 20, its current electrode 2 is connected with the constant current output 1 of constant-current source generator, its temperature sensor signal output 4 links to each other with the temperature measurement signal input 5 of temperature meter, its potential difference signal output 3 links to each other with the voltage signal input 8 of signal amplifier, the temperature signal input 7 of signal amplifier is connected to the temperature measurement signal output 6 of temperature meter, the voltage output end 9 of signal amplifier, temperature signal output 10 is connected to the voltage analog measuring-signal input 11 of A/D converter respectively, temperature simulation measuring-signal input 12, the voltage digital signal output 13 of A/D converter, temperature digital signal output part 14 is connected to the voltage digital signal input 15 of single-chip microcomputer respectively, temperature digital signal input part 16, the demonstration signal output part 17 of single-chip microcomputer links to each other 18 with the demonstration signal input part of display board.
In the technical program, temperature meter is made of temperature measurement probe and temperature corrector, and the purpose of doing like this makes that the temperature signal of input signal amplifier is to have passed through the signal after the temperature-compensating, has improved the accuracy of the numerical value of surveying.The constant-current source part can form control section by a dc battery jar and a constant current to be formed, and signal amplifier can be selected the form of difference amplifier for use, and single-chip microcomputer can be selected the MSC-51 series monolithic of Intel company for use, and the program of this single-chip microcomputer is predisposed wherein.
When operate as normal, by constant-current source the sensor current electrode is powered, measure the potential difference at the mud two ends of drawing in the suction pipe by sensor electrical potential difference test probe, the signal of measuring is sent into single-chip microcomputer after the conversion of process A/D converter after amplifying processing through signal amplifier again, under the effect of single-chip microcomputer initialize program, the mud resistivity value is calculated: the actual temperature of the temperature test probe measurement mud of while sensor, the temperature compensated correction of this signal, signal amplifies, send single-chip microcomputer after the analog-to-digital conversion to, this moment, single-chip microcomputer can convert automatically according to the resistivity value under this observed temperature and this temperature, draw the mud resistivity value under the normal temperature, this numerical value is directly exported to display board, and operating personnel can directly read.Wherein normal temperature is set after can adjusting program in the single-chip microcomputer as required voluntarily.
The utility model has changed original measurement mud resistivity needs the very big ground system of a cover to cooperate, need hand computation to measure the shortcoming inaccurate, that the measurement result human factor is more, make every operation all finish automatically by Single-chip Controlling, directly read resistivity value by display board, avoid the manually-operated loaded down with trivial details and error that may bring, improved precision and efficient that mud resistivity is measured.
Claims (2)
1, a kind of drilling fluid resistivity measurement instrument, comprise the sensor that places in the housing (21), the constant-current source generator, signal amplifier, temperature meter, A/D converter, single-chip microcomputer, display board, it is characterized in that: sensor has potential difference test probe (19), temperature test probe (20), its current electrode (2) is connected with the constant current output (1) of constant-current source generator, its temperature sensor signal output (4) links to each other with the temperature measurement signal input (5) of temperature meter, its potential difference signal output (3) links to each other with the voltage signal input (8) of signal amplifier, the temperature signal input (7) of signal amplifier is connected to the temperature measurement signal output (6) of temperature meter, the voltage of signal amplifier, temperature signal output (9,10) be connected to the voltage of A/D converter respectively, temperature simulation measuring-signal input (11,12), the voltage of A/D converter, temperature digital signal output part (13,14) be connected to the voltage of single-chip microcomputer respectively, temperature digital signal input part (15,16), the demonstration signal output part (17) of single-chip microcomputer link to each other with the demonstration signal input part of display board (18).
2, a kind of drilling fluid resistivity measurement instrument according to claim 1, it is characterized in that: temperature meter is made of temperature measurement probe and temperature corrector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200024205U CN2674088Y (en) | 2004-01-18 | 2004-01-18 | Instrument for testing resistivity of well drilling liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200024205U CN2674088Y (en) | 2004-01-18 | 2004-01-18 | Instrument for testing resistivity of well drilling liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674088Y true CN2674088Y (en) | 2005-01-26 |
Family
ID=34482239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200024205U Expired - Fee Related CN2674088Y (en) | 2004-01-18 | 2004-01-18 | Instrument for testing resistivity of well drilling liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674088Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337886A (en) * | 2010-07-22 | 2012-02-01 | 中国石油天然气集团公司 | System of performing down-hole measurement on oil gas in slurry while drilling |
| CN102518424A (en) * | 2011-12-28 | 2012-06-27 | 中国石油天然气集团公司 | Compound measuring device for resistivity and temperature of fluid |
| CN104502711A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Portable interface member |
-
2004
- 2004-01-18 CN CNU2004200024205U patent/CN2674088Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337886A (en) * | 2010-07-22 | 2012-02-01 | 中国石油天然气集团公司 | System of performing down-hole measurement on oil gas in slurry while drilling |
| CN102337886B (en) * | 2010-07-22 | 2014-11-26 | 中国石油天然气集团公司 | System of performing down-hole measurement on oil gas in slurry while drilling |
| CN102518424A (en) * | 2011-12-28 | 2012-06-27 | 中国石油天然气集团公司 | Compound measuring device for resistivity and temperature of fluid |
| CN102518424B (en) * | 2011-12-28 | 2014-07-02 | 中国石油天然气集团公司 | Compound measuring device for resistivity and temperature of fluid |
| CN104502711A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Portable interface member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050126 Termination date: 20120118 |