CN107101772A - A kind of method for testing pressure and device - Google Patents
A kind of method for testing pressure and device Download PDFInfo
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- CN107101772A CN107101772A CN201710165678.9A CN201710165678A CN107101772A CN 107101772 A CN107101772 A CN 107101772A CN 201710165678 A CN201710165678 A CN 201710165678A CN 107101772 A CN107101772 A CN 107101772A
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- pressure
- signal
- universal meter
- signal amplifier
- testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The embodiment of the invention discloses a kind of method for testing pressure, including：Pressure signal is converted to by the pressure data under pressure sensor production wells, and by the pressure data；The pressure signal is amplified by signal amplifier, and the pressure signal after amplification is transferred to universal meter；The corresponding pressure value of pressure signal is shown by universal meter.The embodiment of the invention also discloses a kind of pressure test device.Pass through scheme of the embodiment of the present invention, only pass through the pressure value under signal amplifier and common the universal meter just accurate testing well of energy, device is simple, convenient disassembly is simple, intuitively easy to operate, measuring accuracy is high, flexibility is high, with versatility for test, and small power consumption, cost are low.
Description
Technical field
The present embodiments relate to downhole testing technology, espespecially a kind of method for testing pressure and device.
Background technology
When testing down-hole pressure, often from high-precision pressure sensor, sometimes, high-precision pressure sensor
The electric signal of output is very faint, and is direct current signal.Faint direct current signal can influence the accuracy of pressure test, therefore
Need the signal of output being controlled amplification, and show.And in being tested in laboratory, if test all designs one every time
Direct current signal amplification control and test display apparatus, the cost of cost are higher, and the project development time is longer, is unfavorable for laboratory
Test.
The content of the invention
In order to solve the above-mentioned technical problem, the embodiments of the invention provide a kind of method for testing pressure and device, simple side
Just, flexibility it is high, with versatility, and small power consumption, cost are low.
In order to reach purpose of the embodiment of the present invention, the embodiments of the invention provide a kind of method for testing pressure, this method bag
Include：
Pressure signal is converted to by the pressure data under pressure sensor production wells, and by the pressure data；
The pressure signal is amplified by signal amplifier, and the pressure signal after amplification is transferred to universal meter；
The corresponding pressure value of pressure signal is shown by universal meter.
Alternatively, pressure signal is d. c. voltage signal.
Alternatively, this method also includes：Before the corresponding pressure value of pressure signal is shown by universal meter, by universal meter
Gear regulation to DC voltage shelves.
Alternatively, this method also includes：Before the pressure data under by pressure sensor production wells, according to default
It is required that carrying out zeroing amendment to signal amplifier.
Alternatively, this method also includes：Before the pressure data under by pressure sensor production wells, selection signal is put
The multiplication factor of big device.
In order to reach the object of the invention, the embodiment of the present invention additionally provides a kind of pressure test device, and the device includes：Pressure
Force snesor, signal amplifier and universal meter.
Pressure sensor, pressure signal is converted to for the pressure data under production wells, and by the pressure data；
Signal amplifier, universal meter is transferred to for being amplified to pressure signal, and by the pressure signal after amplification；
Universal meter, for showing the corresponding pressure value of pressure signal.
Alternatively, the output end of pressure sensor is connected with the input of signal amplifier；
The signal output part of signal amplifier is connected with the input of universal meter.
Alternatively, the gear of universal meter is DC voltage shelves.
Alternatively, the measuring accuracy of pressure sensor is millivolt level.
Alternatively, universal meter is four Semi-digital universal meters.
The embodiment of the present invention includes：Changed by the pressure data under pressure sensor production wells, and by the pressure data
For pressure signal；The pressure signal is amplified by signal amplifier, and the pressure signal after amplification is transferred to general-purpose
Table；The corresponding pressure value of pressure signal is shown by universal meter.By scheme of the embodiment of the present invention, only by signal amplifier and
Common universal meter is with regard to the pressure value under the accurate testing well of energy, and device is simple, convenient disassembly is simple, test easy to operate, survey directly perceived
Try high precision, flexibility height, with versatility, and small power consumption, cost are low, are highly suitable in experiment test.
The further feature and advantage of the embodiment of the present invention will illustrate in the following description, also, partly from explanation
Become apparent, or understood by implementing the embodiment of the present invention in book.The purpose of the embodiment of the present invention and other advantages
It can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical solution of the present invention, and constitutes a part for specification, with this
The embodiment of application is used to explain technical scheme together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the method for testing pressure flow chart of the embodiment of the present invention；
Fig. 2 is the pressure test device structure chart of the embodiment of the present invention.
Embodiment
For the purpose, technical scheme and advantage of the embodiment of the present invention are more clearly understood, below in conjunction with accompanying drawing pair
Embodiments of the invention are described in detail.It should be noted that in the case where not conflicting, embodiment and reality in the application
Applying the feature in example can mutually be combined.
Can be in the computer system of such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Perform.And, although logical order is shown in flow charts, but in some cases, can be with suitable different from herein
Sequence performs shown or described step.
In order to reach purpose of the embodiment of the present invention, the embodiments of the invention provide a kind of method for testing pressure, such as Fig. 1 institutes
Show, this method includes S101-S103：
S101, by the pressure data under pressure sensor production wells, and by the pressure data be converted to pressure signal.
In embodiments of the present invention, when testing down-hole pressure, often from high-precision pressure sensor, typically in milli
Lie prostrate level or so.The output of high-precision pressure sensor is very faint d. c. voltage signal, and 0MPA output voltage is about
0.165mVDC, 35MPA output voltage are 5.49mVDC, and 70MPA output voltage is 10.827mVDC, 105MPA output
Voltage is 16.179mVDC, it is possible thereby to calculate, often raises 1MPA, output voltage amplitude of variation is 0.152mVDC, signal intensity
It is very faint, is difficult the change that detects pressure with general signal reader.Based on above mentioned problem, the present invention is implemented
Example proposes a kind of direct-reading method for testing pressure that simple in construction, easy to operate, measuring accuracy is high and cost is low, and this method is only needed
The pressure signal that pressure sensor is measured is amplified, and is shown by universal meter, and this method need not be entered
The extra project development of row, it is only necessary to laboratory conventional signal amplifier and universal meter, and it is simple to operate, it is easy to accomplish.
Most importantly, measuring accuracy is high, can carry out direct-reading to pressure value by universal meter, reach good test effect, and
And it is highly suitable for laboratory test, but it is not limited to laboratory test.
In embodiments of the present invention, pressure sensor can be directly placed into well, the pressure data under production wells, and should
Pressure data is converted to pressure signal.Alternatively, the pressure signal can be d. c. voltage signal.In addition, in present invention implementation
In example, concrete model or type for pressure sensor are not limited, can be according to different application scenarios self-definings.
S102, by signal amplifier the pressure signal is amplified, and the pressure signal after amplification is transferred to ten thousand
Use table.
In embodiments of the present invention, by the above, the pressure value that pressure sensor is detected often raises 1MPA,
Output voltage amplitude of variation is only 0.152mVDC, and signal intensity is very faint, is difficult to visit with general signal reader
Measure the change of pressure.In addition, the output signal of pressure sensor is faint DC signal, typically in millivolt level or so,
Misreading or skip for universal meter may be caused because the output signal is too faint with universal meter direct-reading, so as to influence test essence
Degree.Therefore, in order to improve measuring accuracy, it is necessary to the output signal of pressure sensor, i.e., above-mentioned pressure signal is amplified,
So that universal meter can be accurately read the pressure signal.
In embodiments of the present invention, the pressure signal can be amplified by signal amplifier, the signal amplifier
Any device to signal with enlarging function, equipment or element can be used, is not limited for its concrete form or type.
Alternatively, the signal amplifier can be low noise, special low drifting DC preamplifier.
Alternatively, this method can also include：Before the pressure data under by pressure sensor production wells, selection letter
The multiplication factor of number amplifier.
In embodiments of the present invention, it is adjustable that the signal amplifier, which may be arranged as multiplication factor, to be adapted to difference
Amplification requirement.Based on the setting, alternatively, this method can also include：Pressure under by pressure sensor production wells
Before data, the multiplication factor of selection signal amplifier.The multiplication factor can be according to the weak degrees of current pressure signal, ten thousand
The information such as the amplifying power of requirement and signal amplifier with table to input signal are determined, are not particularly limited herein.
Alternatively, this method can also include：Before the pressure data under by pressure sensor production wells, according to pre-
If requirement to signal amplifier carry out zeroing amendment.
In embodiments of the present invention, the default requirement can be according to different application scenarios self-definings.For example, according to
The handbook of pressure sensor, in pressure of the input for 0MPA, its output is necessary for 0.165mVDC, now, the reading of universal meter
For 0.165mVDC*K, if now general-purpose meter reading is not 0.165mVDC*K, need to repair signal amplifier progress zeroing
Just, to increase the accuracy of general-purpose meter reading.
S103, pass through universal meter and show the corresponding pressure value of pressure signal.
In embodiments of the present invention, by above-mentioned steps the pressure signal that pressure sensor is detected is amplified with
Afterwards, just the pressure signal after amplification can be sent to universal meter, to show the corresponding pressure of pressure signal by universal meter
Value, so that user can carry out direct-reading by universal meter to pressure value.
Alternatively, this method can also include：Before the corresponding pressure value of pressure signal is shown by universal meter, by ten thousand
DC voltage shelves are arrived with the gear regulation of table.
In embodiments of the present invention, because pressure signal can be d. c. voltage signal, therefore, the gear of universal meter can be with
Select for DC voltage shelves, with receive amplification after pressure signal.And the universal meter can be from four Semi-digital universal meters.
In order to reach the object of the invention, the embodiment of the present invention additionally provides a kind of pressure test device 1, as shown in Fig. 2 needing
It is noted that any embodiment in above-mentioned embodiment of the method is applied to following device embodiments, no longer go to live in the household of one's in-laws on getting married herein
State.The device includes：Pressure sensor 11, signal amplifier 12 and universal meter 13.
Pressure sensor 11, pressure signal is converted to for the pressure data under production wells, and by the pressure data；
Signal amplifier 12, universal meter is transferred to for being amplified to pressure signal, and by the pressure signal after amplification；
Universal meter 13, for showing the corresponding pressure value of pressure signal.
Alternatively, the output end of pressure sensor 11 is connected with the input of signal amplifier 12；
The signal output part of signal amplifier 12 is connected with the input of universal meter 13.
Alternatively, the gear of universal meter 13 is DC voltage shelves.
Alternatively, the measuring accuracy of pressure sensor 11 is millivolt level.
Alternatively, universal meter 13 is four Semi-digital universal meters.
The embodiment of the present invention includes：Changed by the pressure data under pressure sensor production wells, and by the pressure data
For pressure signal；The pressure signal is amplified by signal amplifier, and the pressure signal after amplification is transferred to general-purpose
Table；The corresponding pressure value of pressure signal is shown by universal meter.By scheme of the embodiment of the present invention, only by signal amplifier and
Common universal meter is with regard to the pressure value under the accurate testing well of energy, and device is simple, convenient disassembly is simple, test easy to operate, survey directly perceived
Try high precision, flexibility height, with versatility, and small power consumption, cost are low, are highly suitable in experiment test.
Although disclosed herein embodiment as above, described content be only readily appreciate the present invention and use
Embodiment, is not limited to the present invention.Technical staff in any art of the present invention, is taken off not departing from the present invention
On the premise of the spirit and scope of dew, any modification and change, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of method for testing pressure, it is characterised in that methods described includes：
By the pressure data under pressure sensor production wells, and convert pressure data into pressure signal；
The pressure signal is amplified by signal amplifier, and the pressure signal after amplification is transferred to universal meter；
The corresponding pressure value of the pressure signal is shown by the universal meter.
2. method for testing pressure according to claim 1, it is characterised in that the pressure signal is d. c. voltage signal.
3. method for testing pressure according to claim 1 or 2, it is characterised in that methods described also includes：
Before the corresponding pressure value of the pressure signal is shown by the universal meter, the gear regulation of the universal meter is arrived
DC voltage shelves.
4. method for testing pressure according to claim 1, it is characterised in that methods described also includes：
Before the pressure data under by the pressure sensor production wells, according to default requirement to the signal amplifier
Carry out zeroing amendment.
5. method for testing pressure according to claim 1, it is characterised in that methods described also includes：Passing through the pressure
Before pressure data under force snesor production wells, the multiplication factor of the signal amplifier is selected.
6. a kind of pressure test device, it is characterised in that described device includes：Pressure sensor, signal amplifier and universal meter；
The pressure sensor, for the pressure data under production wells, and converts pressure data into pressure signal；
The signal amplifier, for being amplified to the pressure signal, and is transferred to general-purpose by the pressure signal after amplification
Table；
The universal meter, for showing the corresponding pressure value of the pressure signal.
7. pressure test device according to claim 6, it is characterised in that
The output end of the pressure sensor is connected with the input of the signal amplifier；
The signal output part of the signal amplifier is connected with the input of the universal meter.
8. pressure test device according to claim 6, it is characterised in that the gear of the universal meter is DC voltage
Shelves.
9. the pressure test device according to claim 6 or 7, it is characterised in that the measuring accuracy of the pressure sensor
For millivolt level.
10. the pressure test device according to claim 6 to 8 any one, it is characterised in that the universal meter is four
Semi-digital universal meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165678.9A CN107101772A (en) | 2017-03-20 | 2017-03-20 | A kind of method for testing pressure and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165678.9A CN107101772A (en) | 2017-03-20 | 2017-03-20 | A kind of method for testing pressure and device |
Publications (1)
| Publication Number | Publication Date |
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| CN107101772A true CN107101772A (en) | 2017-08-29 |
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ID=59675358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710165678.9A Pending CN107101772A (en) | 2017-03-20 | 2017-03-20 | A kind of method for testing pressure and device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU853426A1 (en) * | 1979-11-30 | 1981-08-07 | Киевский Ордена Трудового Красногознамени Институт Инженеров Гражданскойавиации | Universal measuring device |
| CN2883668Y (en) * | 2005-12-02 | 2007-03-28 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | Implanted pressure temp tester for electrical pumping well |
| CN103048087A (en) * | 2011-10-13 | 2013-04-17 | 江苏恩泰传感器有限公司 | Pressure sensor debugging system and debugging method thereof |
| CN203422412U (en) * | 2013-08-03 | 2014-02-05 | 漳州市东方智能仪表有限公司 | Digital multimeter having gas pressure measuring function |
| CN104568310A (en) * | 2015-01-19 | 2015-04-29 | 北京大学 | Testing device for high-temperature pressure sensor |
| CN206753570U (en) * | 2017-03-20 | 2017-12-15 | 中国海洋石油总公司 | A kind of pressure test device |
-
2017
- 2017-03-20 CN CN201710165678.9A patent/CN107101772A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU853426A1 (en) * | 1979-11-30 | 1981-08-07 | Киевский Ордена Трудового Красногознамени Институт Инженеров Гражданскойавиации | Universal measuring device |
| CN2883668Y (en) * | 2005-12-02 | 2007-03-28 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | Implanted pressure temp tester for electrical pumping well |
| CN103048087A (en) * | 2011-10-13 | 2013-04-17 | 江苏恩泰传感器有限公司 | Pressure sensor debugging system and debugging method thereof |
| CN203422412U (en) * | 2013-08-03 | 2014-02-05 | 漳州市东方智能仪表有限公司 | Digital multimeter having gas pressure measuring function |
| CN104568310A (en) * | 2015-01-19 | 2015-04-29 | 北京大学 | Testing device for high-temperature pressure sensor |
| CN206753570U (en) * | 2017-03-20 | 2017-12-15 | 中国海洋石油总公司 | A kind of pressure test device |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: China Oilfield Services Limited Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: China Oilfield Services Limited |
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Application publication date: 20170829 |