CN201133888Y - Material permeability coefficient measurement unit based on transfiguration - Google Patents
Material permeability coefficient measurement unit based on transfiguration Download PDFInfo
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- CN201133888Y CN201133888Y CNU2007203005144U CN200720300514U CN201133888Y CN 201133888 Y CN201133888 Y CN 201133888Y CN U2007203005144 U CNU2007203005144 U CN U2007203005144U CN 200720300514 U CN200720300514 U CN 200720300514U CN 201133888 Y CN201133888 Y CN 201133888Y
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- positive
- displacement apparatus
- pressure
- permeability coefficient
- material permeability
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Abstract
The utility model discloses a material permeability coefficient measuring instrument based on variable volume, relating to a material permeability coefficient measuring instrument. The material permeability coefficient measuring instrument is composed of a core device (1000) and a peripheral device (2000); wherein, the core device (1000) consists of a variable-volume device (1100), a drill core clamp (1200), a pressure-measuring device (1300) and a data collecting and processing device (1400); the peripheral device (2000) consists of a gas-injecting device (2100), a fluid-injecting device (2200), a confining pressure device (2300) and a vacuumizing device (2400). Because of the advantages of low cost, simple operation, high measuring speed, wide measuring range and high measuring precision, the material permeability coefficient measuring instrument is applicable to indoor experiments and engineering.
Description
Technical field
The utility model relates to a kind of material permeability coefficient surveying instrument, relate in particular to a kind of fast, the material permeability coefficient surveying instrument based on transfiguration of wide cut.
Background technology
The infiltration coefficient distribution range of natural rock surpasses 10 orders of magnitude.Particularly, because exploitation, the underground disposal of radiomaterial and the geology of greenhouse gases of oil gas field such as seal up for safekeeping at the safety evaluatio and the job design of engineering in recent years, press for and measure the material relevant under external force, temperature and chemical action, the Changing Pattern of its permeance property with these engineerings.In this case, the infiltration coefficient of same block of material may change significantly and reaches several orders of magnitude---from less than 1 μ D (darcy) to 1D.
At present, the scope of commonly used various infiltration coefficient surveying instrument institute energy measurement is generally at 2～3 orders of magnitude; Still there is not the instrument that adopts transfiguration pressure pulse method to measure infiltration coefficient both at home and abroad; Be mainly used to measure the measuring method (for example traditional pressure pulse method, constant flow pump method etc.) of hypotonic material permeability coefficient in the world, its main theory foundation and part technical indicator are suitable with the utility model, but concrete instruments design, method for solving and the utility model are different, and cost is also very expensive.
Summary of the invention
The purpose of this utility model is to measure above-mentioned material under external force, temperature or chemical action in order to satisfy, and the requirement that its infiltration coefficient changes significantly provides a kind of material permeability coefficient surveying instrument based on transfiguration.
The purpose of this utility model is achieved in that
One, mentality of designing
1, utilizes test pump,, obtain the pressure pulse that designing institute needs by reasonable by-pass valve control and tensimeter.
2, design the positive-displacement apparatus that has comprehensive compressibility to change,, thereby obtain to cross over the above comprehensive compressibility of six orders of magnitude by gas-liquid volume ratio in the reasonable adjusting volume variable container.
3, design has the data acquisition processing device of pressure reduction-time curve of gathering the test specimen two ends.
4, design has the back analysis software for calculation of working out at the utility model, fits the pressure reduction-time plot of collection, generates each parameter value of test specimen and instrument automatically.(the computing machine software copyright registration of man of separate case applicant country)
Two, design proposal
As Fig. 1 .1,1.2, the utility model is made up of core apparatus (1000) and peripheral unit (2000) two parts:
Core apparatus (1000) comprises positive-displacement apparatus (1100), rock core fastener (1200), pressure measurement device (1300) and data acquisition processing device (1400);
Peripheral unit (2000) comprises gas injection device (2100), priming device (2200), confining pressure device (2300) and vacuum withdraw device (2400).
Core apparatus (1000) has two kinds of connected modes with peripheral unit (2000);
Connected mode one: as Fig. 1 .1, positive-displacement apparatus (1100) connects gas injection device (2100) and priming device (2200) respectively; Rock core fastener (1200) connects priming device (2200), confining pressure device (2300), vacuum withdraw device (2400) and pressure measurement device (1300) respectively; Pressure measurement device (1300) connects data acquisition processing device (1400);
Connected mode two: as Fig. 1 .2, positive-displacement apparatus (1100) connects gas injection device (2100), priming device (2200) and vacuum withdraw device (2400) respectively; Rock core fastener (1200) connects priming device (2200), confining pressure device (2300) and pressure measurement device (1300) respectively; Pressure measurement device (1300) connects data acquisition processing device (1400).
Principle of work of the present utility model is:
Peripheral unit (2000) is to set up the peripheral auxiliary equipment that connects core apparatus (1000), by applying confined pressure, gas injection leak detection, extracting vacuum, fluid injection pressurization and release pulses, carry out measurement preliminary work, finish impulse attenuation, pressure reduction-time data collection and processing etc. by core apparatus (1000) then and measure groundwork, obtain final measurement.
The utility model can be realized bidirectional measurement, and promptly can be from clamper (1200) the two ends any end of pressure pulse discharges, and the concrete condition in the time of can be according to test is come easy operation, also can improve the precision of measurement.
It mainly is the mutual relationship between design test specimen (W), positive-displacement apparatus (1100) and the data acquisition processing device (1400).Positive-displacement apparatus (1100) can be in the instruments design scope free adjustment, change the size of its comprehensive compressibility (being water capacity), key is according to test specimen (W), regulate the size of the interior gas volume of the 1st, 2 volume variable containers (1111,1121), reach the test design value and test, generate test specimen (W) and each parameter value of instrument automatically by data acquisition processing device (1400) again.
Core apparatus of the present utility model (1000) has following characteristics:
1, deft design, structural symmetry, leakage drops to minimum, and it is minimum that error is reduced to, as:
(a) utilize high-quality steel pipe, valve, joint connector, obtain the excellent effect of extremely low slip, high stability;
(b) adopt identical the 1st, 2 positive-displacement apparatus (1110,1120) of structure, symmetry connects, and has guaranteed the integrally-built symmetry of core apparatus (1000), to reduce error;
(c) separation membrane that utilizes elasticity and good sealing performance Heveatex material to make is finished the effect that gas-liquid is separated in the volume variable container, freely changes gas-liquid volume ratio, regulate simply, and stable performance, effective.
2, autonomous Design positive-displacement apparatus (1100) through strict reasoning and calculation, designs its size, selection, processing technology and assembling etc., makes its stable performance, reliable for effect, easy to operate, and has guaranteed measuring accuracy.
3, autonomous Design is optimized clamper (1300), it is adapted as used, guarantees the rationality tested to reduce source of error as much as possible.
4, measured pressure signal is gathered into voltage signal through data collecting card (1410) earlier, in terminal device (1420), convert pressure signal to then, obtain pressure reduction-time plot, implanting needle back analysis software for calculation that the utility model is worked out again, automatically generate the correlation parameter of this surveying instrument, i.e. the needed measurement result of this instrument.
The utlity model has following advantage and good effect:
1, owing to be the indoor infiltration coefficient surveying instrument of quick (less than 30 minutes), wide cut (6 magnitudes), the utility model is specially adapted to measure under external force, temperature or chemical action, the material that its infiltration coefficient changes significantly.Fast measurement can reduce because of the long-time systematic error that the instrument leakage that causes or temperature fluctuation cause etc. of measuring; Wide cut is measured can enlarge its range of application, also can reduce in the process of the test because of need and change problems such as system leak that many covering devices cause and complicated operation, also can avoid experimentation cost too expensive, therefore measurement result of the present utility model is more accurate, more convenient operation, cost is cheaper.
2, in the whole instrument perfection of each device and parts design, manufacture meticulously, characteristics such as specialty assembling, help reducing source of error, reduce error size, and, make the utility model have more development prospect and other potential application foreground to the efficient processing of measurement result.
3, the parts of peripheral unit have all adopted market ripe, and dismounting is easy, flexible.After it finishes test preliminary work, detachably use it for anything else, reduce cost, simplify instrument, be convenient for carrying, robotization and the marketization later for the utility model provide strong support.
4, measuring accuracy of the present utility model and ranging scope, and has a structure of multiple connected mode, occupied the leading position of international like product, having more to provide special measurement means and convenient service for safety evaluatio and the job design that the exploitation of oil gas field, the underground disposal of radiomaterial and the geology of greenhouse gases such as seal up for safekeeping at engineering.
5, the wide range permeameter developed of the utility model is verified in testing laboratory, for great scope of land has been opened up in application of the present utility model and popularization.
In a word, the utility model makes it have great laboratory experiment and engineering using value because of it is with low cost, simple to operate, measuring speed is fast, measurement range is wide and the measuring accuracy height.
After testing, the utlity model has following key property index:
1, range: infiltration coefficient 1 μ D～1D;
2, the time: 5～30 minutes;
3, precision: in 5%.
Description of drawings
Fig. 1 .1 is the block diagram of the utility model connected mode one;
Fig. 1 .2 is the block diagram of the utility model connected mode two;
Fig. 2 is the positive-displacement apparatus structural representation;
Fig. 3 is a core apparatus structural representation of the present utility model;
Fig. 4 is the general structure synoptic diagram of the utility model connected mode two.
(solid line among the figure is represented pipeline, and dotted line is represented circuit.)
Wherein:
The 1000-core apparatus,
The 1100-positive-displacement apparatus,
1110-the 1st positive-displacement apparatus,
1111-the 1st volume variable container, 1112-the 1st separation membrane, 1113-the 1st discharge opeing tube,
1120-the 2nd positive-displacement apparatus,
1121-the 2nd volume variable container, 1122-the 2nd separation membrane, 1123-the 2nd discharge opeing tube;
The 1200-clamper;
1300-pressure measurement device,
The 1310-differential pressure gauge, 1321-the 1st pressure transducer, 1322-the 2nd pressure transducer;
The 1400-data acquisition processing device,
The 1410-data collecting card, the 1420-terminal device.
The 2000-peripheral unit,
The 2100-gas injection device, 2200-priming device, 2300-confining pressure device, 2400-vacuum withdraw device.The W-test specimen; The F-valve; The P-tensimeter.
Embodiment
The utility model is realized accurate measurement quick, wide cut in the measurement range of infiltration coefficient 1 μ D～1D, adopted the variable positive-displacement apparatus of comprehensive compressibility (1100).
Difference according to test specimen (W) infiltration coefficient, regulate the comprehensive compressibility of positive-displacement apparatus (1100), determine suitable gas-liquid volume ratio, apply just primordium pressure and pressure pulse with pressurization and the stable flexibly test pump of decompression to instrument, by carefully, reasonably pressurizeing to reach designed pressure pulse size, make pressure measurement device (1300) collect balanced voltage signal reliably, be transferred to again in the data acquisition processing device (1400) and carry out conversion Calculation, generate the correlation parameter of the utility model and test specimen (W).Data collecting card output then utilizes high frequency to finish and gathers the voltage signal corresponding with pressure reduction, guarantee accurately to reflect test specimen (W) two ends pressure reduction rule over time, on terminal device, generate pressure reduction-time plot, and the strict pressure signal data of noting each acquisition time point, the measurement result of acquisition high accuracy, high stability.But the force value size constantly of each collection of cut-in pressure sensor record measured point optionally is so that generate more test correlation parameters, convenient processing and discussion to test figure.At the back analysis software for calculation (the computing machine software copyright registration of man of separate case applicant country) of the utility model establishment when carrying out data processing, can select rational segment of curve and mismatch error correction to measured pressure reduction-time plot, guarantee that test findings is true and reliable.
Below in conjunction with drawings and Examples relevant functional part is described in detail:
One, core apparatus (1000)
As Fig. 1 .1,1.2, core apparatus (1000) comprises four parts: positive-displacement apparatus (1100), clamper (1200), pressure measurement device (1300) and data acquisition processing device (1400).
1, positive-displacement apparatus (1100)
Referring to utility application " based on the variable transfiguration water yield container of the comprehensive compressibility of fluid " (applicant: Wuhan Inst. of Rock and Soil Mechanics, Chinese Academy of Sciences; Inventor: Li Xiaochun, Wang Ying, Wei Ning; The applying date: on October 18th, 2007, application number: 200720087599.2.)
As Fig. 2, positive-displacement apparatus (1100), autonomous Design, selection, customized, processing and assembling make its comprehensive compressibility can free adjustment in a wide cut scope, so that the comprehensive compressibility of the 1st, 2 volume variable containers (1111,1121) inner fluid reaches 6 orders of magnitude.
Positive-displacement apparatus (1100) comprises the 1st positive-displacement apparatus (1110) and the 2nd positive-displacement apparatus (1120) that structure is identical;
The 1st positive-displacement apparatus (1110) comprises the 1st volume variable container (1111), the 1st separation membrane (1112), the 1st discharge opeing tube (1113); The 1st separation membrane (1112) is clipped in the 1st volume variable container (1111); The 1st discharge opeing tube (1113) receives the liquid that the 1st volume variable container (1111) is discharged;
Positive-displacement apparatus (1100) connects gas injection device (2100) and priming device (2200);
1st, by the 1st, 2 separation membranes (1112,1122) gas-liquid is separated respectively in 2 volume variable containers (1111,1121), 1st, the inflatable or contraction of 2 separation membranes (1112,1122), to reach the transfiguration purpose, and in the process of the test, the 1st, 2 separation membranes (1112,1122) are gone up downforce and are kept balance;
When 1st, 2 separation membranes (1112,1122) expand, can respectively the interior liquid of the 1st, 2 volume variable containers (1111,1121) be discharged, receive by the 1st, 2 discharge opeing tubes (1113,1123) respectively.
1st, the comprehensive constrictive metering formula of 2 volume variable containers (1111,1121) inner fluid is:
C
s＝(C
w×V
w+C
rV
r+C
gV
g)/V
s(1)
V
s＝V
w+V
r+V
g (2)
Wherein:
C
s-fluid total compressibility;
C
w-liquid compressibility factor;
C
r-separation membrane compressibility coefficient
C
g-gas compressive coefficient;
V
s-container volume;
V
w-liquid volume;
V
r-separation membrane volume;
V
g-gas volume.
1st, 2 volume variable containers (1111,1121) volume is known, by the gas injection discharge opeing, measures the mass M of the interior discharged liquid of the 1st, 2 discharge opeing tubes (1113,1123)
w, press following formula again with M
wBe converted into the volume V of injecting gas
gGet final product:
V
g＝M
w/ρ
w (3)
Wherein:
V
gThe interior gas volume of-Di 1,2 volume variable containers (1111,1121);
M
wThe interior discharged liquid quality of-Di 1,2 discharge opeing tubes (1113,1123);
ρ
w-fluid density.
2, as Fig. 3, pressure measurement device (1300) comprises differential pressure gauge (1310) and the 1st, 2 pressure transducers (1321,1322);
Differential pressure gauge (1310), the 1st, 2 pressure transducers (1321,1322) are standard component, select precision and frequency acquisition high product for use; Used valve (F) and tensimeter (P) are standard component in the instrument; Clamper (1200) is the standard component repacking.
3, core apparatus (1000), data acquisition processing device (1400) enabled in the record of test figure, and all test datas are able to digitizing, have worked out voluntarily to be specifically designed to transfiguration pressure pulse test for data process software.Utilize this back analysis software for calculation to come the measured pressure reduction-time plot of match test, generate test specimen (W) and each related parameter values of instrument automatically.
Two, peripheral unit (2000)
1, as Fig. 1 .1, Fig. 1 .2, peripheral unit (2000) comprises four parts: gas injection device (2100), priming device (2200), confining pressure device (2300) and vacuum withdraw device (2400); Be connected with two kinds of connected modes between peripheral unit (2000) and the core apparatus (1000).
2, as Fig. 4, gas injection device (2100), priming device (2200), confining pressure device (2300), vacuum withdraw device (2400) are standard component;
3, peripheral unit (2000) is to separate work with core apparatus (1000), is to work in front and back on the time; When core apparatus (1000) when beginning to test, peripheral unit (2000) can all disassemble, and is used as its usefulness, thereby can make full use of, save cost.
Claims (2)
1, a kind of material permeability coefficient surveying instrument based on transfiguration is characterized in that:
Form by core apparatus (1000) and peripheral unit (2000) two parts:
Core apparatus (1000) comprises positive-displacement apparatus (1100), rock core fastener (1200), pressure measurement device (1300) and data acquisition processing device (1400);
Peripheral unit (2000) comprises gas injection device (2100), priming device (2200), confining pressure device (2300) and vacuum withdraw device (2400);
Core apparatus (1000) has two kinds of connected modes with peripheral unit (2000):
Positive-displacement apparatus (1100) connects gas injection device (2100) and priming device (2200) respectively; Rock core fastener (1200) connects priming device (2200), confining pressure device (2300), vacuum withdraw device (2400) and pressure measurement device (1300) respectively; Pressure measurement device (1300) connects data acquisition processing device (1400);
Positive-displacement apparatus (1100) connects gas injection device (2100), priming device (2200) and vacuum withdraw device (2400) respectively; Rock core fastener (1200) connects priming device (2200), confining pressure device (2300) and pressure measurement device (1300) respectively; Pressure measurement device (1300) connects data acquisition processing device (1400).
2, by the described material permeability coefficient surveying instrument of claim 1, it is characterized in that based on transfiguration:
Positive-displacement apparatus (1100) comprises the 1st positive-displacement apparatus (1110) and the 2nd positive-displacement apparatus (1120) that structure is identical;
The 1st positive-displacement apparatus (1110) comprises the 1st volume variable container (1111), the 1st separation membrane (1112), the 1st discharge opeing tube (1113); The 1st separation membrane (1112) is clipped in the 1st volume variable container (1111); The 1st discharge opeing tube (1113) receives the liquid that the 1st volume variable container (1111) is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203005144U CN201133888Y (en) | 2007-12-28 | 2007-12-28 | Material permeability coefficient measurement unit based on transfiguration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203005144U CN201133888Y (en) | 2007-12-28 | 2007-12-28 | Material permeability coefficient measurement unit based on transfiguration |
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| Publication Number | Publication Date |
|---|---|
| CN201133888Y true CN201133888Y (en) | 2008-10-15 |
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|---|---|---|---|
| CNU2007203005144U Expired - Lifetime CN201133888Y (en) | 2007-12-28 | 2007-12-28 | Material permeability coefficient measurement unit based on transfiguration |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995373A (en) * | 2010-11-24 | 2011-03-30 | 中国科学院武汉岩土力学所 | Method and device for measuring pore volume change of porous medium |
| CN102507407A (en) * | 2011-09-30 | 2012-06-20 | 西南石油大学 | Device and method for simultaneously measuring permeability coefficient, compressibility coefficient and porosity of rock |
| CN103308446A (en) * | 2013-05-31 | 2013-09-18 | 重庆大学 | Fluid compressibility test device based on corrugated pipes |
| TWI425200B (en) * | 2010-10-01 | 2014-02-01 | Mfc Sealing Technology Company Ltd | Vacuum particle detection testing machine |
| CN104483227A (en) * | 2014-12-12 | 2015-04-01 | 西南石油大学 | Sulfur deposition device based on magnetic suspension balance |
-
2007
- 2007-12-28 CN CNU2007203005144U patent/CN201133888Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI425200B (en) * | 2010-10-01 | 2014-02-01 | Mfc Sealing Technology Company Ltd | Vacuum particle detection testing machine |
| CN101995373A (en) * | 2010-11-24 | 2011-03-30 | 中国科学院武汉岩土力学所 | Method and device for measuring pore volume change of porous medium |
| CN101995373B (en) * | 2010-11-24 | 2012-05-30 | 中国科学院武汉岩土力学所 | Method and device for measuring pore volume change of porous medium |
| CN102507407A (en) * | 2011-09-30 | 2012-06-20 | 西南石油大学 | Device and method for simultaneously measuring permeability coefficient, compressibility coefficient and porosity of rock |
| CN103308446A (en) * | 2013-05-31 | 2013-09-18 | 重庆大学 | Fluid compressibility test device based on corrugated pipes |
| CN103308446B (en) * | 2013-05-31 | 2016-01-20 | 重庆大学 | Based on the fluid compressible system safety testing device of corrugated tube |
| CN104483227A (en) * | 2014-12-12 | 2015-04-01 | 西南石油大学 | Sulfur deposition device based on magnetic suspension balance |
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| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
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| CX01 | Expiry of patent term |