CN106596352A - Compound eye-type image acquisition apparatus used for high-temperature microscopic seepage experiment and analysis method thereof - Google Patents
Compound eye-type image acquisition apparatus used for high-temperature microscopic seepage experiment and analysis method thereof Download PDFInfo
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Abstract
The invention relates to a compound eye-type image acquisition apparatus used for a high-temperature microscopic seepage experiment and an analysis method thereof. The compound eye-type image acquisition apparatus comprises a model holder of a microscopic visual model, a displacement system, a back pressure system, a confining pressure system, a pressure supervision system, a temperature-control system and an image acquisition system; the image acquisition system comprises a compound eye-type image acquisition system and an image analysis system, the compound eye-type image acquisition system performs image information collection and recording on a microscopic visual physical model, and then the record is sent to the image analysis system for performing quantitative analysis on residual oil in the microscopic visual model. The apparatus is capable of simultaneously tracking multiple sites, the anaphase data can be spliced, whole-field comprehensive analysis is realized, so that the collected image data is comprehensive; the apparatus is capable of simultaneously tracking dynamic images of the multiple sites in a confined space, dynamic change of the images during an experiment process enables real time recording, and the problem of attending to everything at once during the dynamic process for single camera image acquisition can be overcome.
Description
Technical field
The present invention relates to a kind of compound eye type image collecting device and analysis method for the experiment of high temperature microscopic seepage,
Belong to the microcosmos experiment method field of permeation fluid mechanics research, by multiple fiber optic camera heads compound eye type image collector is combined into
Put, under realizing simulated formation hot conditionss, trace trap fluid infinitesimal dynamic, while taking into account the macroscopic appearance of full seepage field.
Background technology
At present, in the research of heterogeneous fluid permeation fluid mechanics, the experiment of microscopic seepage that microscopic percolation mechanism is relied primarily on obtains the
First-hand data, used as the core component of microcosmos experiment system, image capturing system is mainly by conventional light microscope and CCD groups
Into fixing point, the amplification of the micro image of fixed amplification and collection can be realized.But, as percolation hydraulic theory is ground
The day by day deep and object of study studied carefully gradually is expanded to deep geologic environment, the aspect subject matter of systems face two：1）Light
The operating temperature for learning microscopical lens group is room temperature scope, is understood in hot environment because len distortion, ametropia cannot
Normal use is even damaged so that whole microcosmos experiment system cannot simulate the temperature conditionss of hundreds if not thousands of meter of deep stratum（>
60℃）, become restriction microscopic seepage and study the important bottleneck problem expanded to deep geologic environment；2）Additionally, single lens
Fixing point, the dynamic image of fixed amplification, but motion side of the fluid infinitesimal in the hole of porous media, larynx network can be obtained
It is single-lens to be difficult to track random motion of the fluid infinitesimal in microscopic seepage network to being difficult to predict, although existing system can be with
By manual moving lens, but camera lens movement can make it is image blurring, while staff operation stable tracking difficult to realize, is easy to
Lose target；3）Also, fixed amplification cannot take into account the overall situation（Whole flow field）And local detail（Single pore throat）Information.On
State problem and all become and seriously limit the bottleneck problem that microscopic percolation mechanism is combined with macro-scale feature.
The content of the invention
It is an object of the invention to provide a kind of compound eye type image collecting device for the experiment of high temperature microscopic seepage.For mesh
Front image collecting device can cannot take into account that multiple spot dynamic, information is not complete in image acquisition, and manually tracking, video are unstable,
The problems such as poor repeatability；Can effectively be overcome using the inventive method.First, this device can simultaneously track multiple points
Position, later data is sliceable, realizes whole audience comprehensive analysis, therefore, the view data of collection is more comprehensive；Secondly, this device energy
Enough dynamic images for tracking multiple spot simultaneously in the confined space, the dynamic change of the image of real time record experimentation overcomes
The problem that single camera image collection is attended to one thing and lose sight of another in dynamic process；In addition, this device and can observe as needed
Image range be amplified the regulation of multiple, the contradiction when entirety of solution is gathered with topography.Therefore, this device is one
Plant image collecting device easily and effectively.
Technical scheme is as follows：A kind of compound eye type image collecting device for the experiment of high temperature microscopic seepage, it includes
It is clamped with model clamper, displacement system, back pressure system, confined pressure system, pressure monitoring system and the temperature of microcosmic visual model
Control system；
Wherein, the displacement system is used for displacement microcosmic visual model；The back pressure system is connected with model clamper, so that institute
The outlet for stating microcosmic visual model is pressurized to predetermined pressure；The confined pressure system is connected with model clamper, makes the microcosmic
Visual model is all the time in the environment of predetermined pressure；Pressure monitor system is used to monitor confined pressure pressure, back pressure pressure；Temperature control
System processed is connected with the clamper, and for the microcosmic visual model inside clamper a constant temperature environment is provided；The system includes
Image capturing system, described image acquisition system includes compound eye type image collecting device and image analysis subsystem, the compound eye
Formula image capturing system carries out image information collecting record to microcosmic visible physical model, and is transported to image analysis system pair
Remaining oil in microcosmic visual model carries out quantitative analyses.
Further, the compound eye type image collector is set to some photographic head, wherein 1 photographic head is centrally located, in addition
Other photographic head are along the circumferential direction uniformly arranged.
Further, some photographic head can also arrange that four points are respectively provided with a photographic head, centre position one using X-type
Individual photographic head.
Further, the photographic head is compound eye type fiber optic camera head or the pin type photographic head of adjustable focus, photographic head adaptive temperature model
Enclose for -80 DEG C～200 DEG C.
Wherein 1 photographic head is centrally located, and in addition 4 photographic head are along the circumferential direction uniformly arranged, and microcosmic visual model is
Square, wherein 1 photographic head positions foursquare center, in addition 4 photographic head position the position at foursquare four angles
Put.
Another mesh of the present invention be to provide it is a kind of using above-mentioned device for remaining oil carries out quantitative analysis method, concrete bag
Include following steps：
Step one：The top cover labyrinth of micromodel clamper is opened, is loaded microcosmic visualization etching model and is clamped in micromodel
Device inboard wall of cylinder block middle part circular step on, during ensure lower cylinder body and microcosmic visualization etching model between bubble-free, microcosmic
Visualization etching model is interconnected between importing and exporting, and slowly tightens micromodel clamper top cover labyrinth, finally ensures whole
Bubble in system is excluded completely, closes the atmospheric valve of micromodel clamper.
Step 2：The temperature controller that regulation is connected with micromodel clamper, design temperature is 90 DEG C, treats that temperature reaches stable
Half an hour, start experiment, first, select the multiple feature locations A～E in microcosmic visualization etching model, arrange compound eye type
Image collecting device, opens light source, is ready for real-time data acquisition；Then, start to be noted in microcosmic visualization etching model
Enter fluid, by micro pump, with the rising of confined pressure, back-pressure valve is adjusted in the stratum water injection model in intermediate receptacle, pass through
Hand pump increases back pressure, it is ensured that the pressure of intermediate receptacle injection model is equal with the pressure of back pressure.It is visual to the microcosmic in the same manner
Changing etching model carries out saturated oils, and the anhydrous outflow in exit of etching mold exit micromodel clamper is visualized to microcosmic,
Will be till effluent oil, in the process, by compound eye type image collecting device and image analysis system, to microcosmic visible physical
Model carries out image information collecting record；
After the completion of step 3, saturated oils, treat that whole system stably for a period of time, closes the outlet of micromodel clamper, according to micro-
See experiment displacement type and experimental pressure, injection displacement stratum water, in the process, using compound eye type image collecting device for
The characteristic area of microcosmic visualization etching model carries out dynamic realtime image acquisition, record different time and the image in displacement stage
Information, in case subsequent treatment and analysis；
After step 4, experiment terminate, the temperature of clamper and micromodel is slowly reduced by temperature controller, treat that temperature is dropped to
Slow blood pressure lowering after room temperature, it is ensured that the confined pressure of model 4, inlet and outlet pressure are reduced simultaneously, and pressure reduction is maintained at 0.5Mpa, until pressure drop
It is low to atmospheric pressure；
Step 5, to interpretation and subsequent analysis；I.e. using Image semantic classification and to the oil displacement efficiency in micromodel
It is analyzed, its analysis method is：
The first step：The pixel number of the figure that microcosmic visual model is formed is obtained, the gray value of each pixel is read；
Second step：The size of each pixel gray value is detected, whether gray value each pixel is judged less than 135, if note
Record meets, then record, and does not otherwise record；
3rd step：Pixel number of the statistics gray value less than 135 and the ratio of all pixels point sum in figure, that is, obtain oil-containing
Saturation, so as to be used for carrying out quantitative analyses to the remaining oil in microcosmic visual model.
The invention has the beneficial effects as follows, due to adopting above-mentioned technical proposal, many fiber optic camera head groups are utilized in present system
Synthesize the device of the compound eye similar to insecticide, while gathering multiple spot dynamic change, be connected with computer, carry out the transmission of data with
Storage；Described fiber optic camera head is the pin type photographic head of adjustable focus, and its adaptive temperature scope is -80 DEG C～200 DEG C；Use resistance to height
Warm acrylic acid coatings optical fiber is attached and data transfer, and the high ambient temperatures scope that it is adapted to is 80 DEG C～150
DEG C, it is possible to use steadily in the long term.And propose to enter the remaining oil in microcosmic visual model according to compound eye photographic head correspondence
The step of row quantitative analyses, can accurately and quickly calculate Fuel Oil Remaining.Description of the drawings
Fig. 1 is high temperature microscopic seepage compound eye type image collecting device schematic diagram of the present invention.
Fig. 2 is microcosmic Visualization Model overall schematic of the present invention.
In figure, 1, micro pump；2nd, intermediate receptacle；3rd, micromodel clamper；4th, etching visualization micromodel；5th, compound eye type shows
Micro- photographic head；6th, light source；7th, image analysis system；8th, back-pressure valve；9th, graduated cylinder；10th, hand pump.Specific embodiment
The method with camera lens miniaturization, many camera lenses simultaneously multipoint acquisition as thinking, rely on the synthetical collection of great amount of images information with
Analysis, realizes to all standing of seepage field, takes into account the overall situation and chase after with the whole dynamic of the real time record of details and fluid infinitesimal
Track, and effectively overcome the limitation that current lens group work can only work in room temperature.
The present invention is described further below in conjunction with the accompanying drawings：
A kind of visualization device of simulation microbial oil displacement, it includes being clamped with the model clamper 3 of microcosmic visual model 4, drives
For system, back pressure system, confined pressure system, pressure monitoring system, temperature control system and image capturing system；Wherein, model
Clamper 3 includes clamper top cover labyrinth, clamper lower sealing cover, upper quartz glass, lower quartz glass and cylinder body；On cylinder body
With fluid ostium, fluid outflow hole, confined pressure hole and thermometer hole.Microcosmic visual model 4 includes inlet and outlet, fluid
Ostium is communicated with the import, and fluid outflow hole is communicated with the outlet；Displacement system includes displacement pump 1, preferably micro
Pump, the first water pump into intermediate receptacle 2, oil pump and enter intermediate receptacle 2 and displacement fluid（Water, carbon dioxide, polymer etc.）Pump into
Intermediate receptacle 2, water pumps into that intermediate receptacle 2, oil pump enters intermediate receptacle 2 and microorganism pumps into intermediate receptacle 2 and presss from both sides with model respectively
The fluid ostium connection of holder 3, and entered in mechanism 2 for the first water to be pumped into the water in mechanism 2, oil pump by displacement pump
The displacement fluid that oil and displacement fluid are pumped in mechanism 2 is pumped in microcosmic visual model 4 by fluid ostium；Back pressure system
System is connected with the fluid outflow hole of model clamper 3, so that the outlet of the microcosmic visual model 4 is pressurized to predetermined pressure；
Confined pressure system is connected with the confined pressure hole of model clamper, makes the microcosmic visual model 4 all the time in the environment of predetermined pressure；
Pressure monitor system is used to monitor the pressure of confined pressure pressure, back pressure pressure, the pressure of microcosmic visual model import and outlet；Temperature
Control system is connected with the thermometer hole on outer wall of cylinder block in the clamper 3, is the microcosmic visual model 4 inside clamper 3
One constant temperature environment is provided；
Image capturing system, it is used to showing and recording the flow regime in microcosmic visual model 4 in real time.Image capturing system bag
Compound eye type image capturing system 5 and image analysis system 7 are included, compound eye type image capturing system 5 enters to microcosmic visible physical model 4
Row image information collecting is recorded, and is transported to image analysis system 7 remaining oil in microcosmic visual model is quantitatively divided
Analysis, be the step of analysis：
The first step：The pixel number of the figure that microcosmic visual model is formed is obtained, the gray value of each pixel is read；
Second step：The size of each pixel gray value is detected, whether gray value is judged less than 135, record meets the gray value
Pixel number
3rd step：The ratio of pixel number of the gray value less than 135 and figure all pixels point sum is calculated, that is, is obtained oil-containing and is satisfied
And degree, so as to be used for carrying out quantitative analyses to the remaining oil in microcosmic visual model.
Compound eye type image capturing system is compound eye type fiber optic camera head, and it is the pin type photographic head of adjustable focus；Photographic head passes through light
It is fine with image analysis system 7, preferably computer is connected；By the comprehensive positioning to microcosmic visual model, and in microcosmic
The feature locations of photographic head positioning are selected on visual model.The photographic head is made up of five photographic head, microcosmic visual model
For square, one of photographic head positions foursquare center, and four additional photographic head positions foursquare four angles
Position.Or positioned according to required position, than as shown in Fig. 2 carrying out determining to five points of A-E of required positioning
Position.The photographic head adaptive temperature scope is -80 DEG C～200 DEG C.
Model clamper 3 also includes the top cover labyrinth with upper watch window, the lower sealing cover with lower watch window, upper quartz
Glass, lower quartz glass and cylinder body, are observed in the microcosmic visual model 4 by upper and lower watch window and upper and lower quartz glass
Fluid flow state.
Microcosmic visual model 4 be transparent two-dimensional model, its by the pore system photoengraving of natural core to plane
On glass and sinter molding and make.
Back pressure system is connected with the fluid outflow hole of model clamper so that the outlet of the microcosmic visual model be pressurized to it is predetermined
Pressure；Back pressure system includes back-pressure valve 8 and hand pump 10, so that the mold exit is pressurized to predetermined pressure.Adjust back
Pressure valve 8, increases back pressure, it is ensured that the pressure of the injection model of intermediate receptacle 2 is equal with the pressure of back pressure by hand pump 10.
Confined pressure system is connected with the confined pressure hole of model clamper, makes the microcosmic visual model 4 all the time in the ring of predetermined pressure
In border；
The predetermined pressure is 10MPa.Temperature control system, by heating in water bath, is the visual mould of microcosmic inside the clamper
Type provides a constant temperature environment.
Image capturing system is by compound eye type image acquisition fibre-optical probe, image display.Flow of fluid shape in microcosmic visual model
State by compound eye type image acquisition fibre-optical probe capture, amplify, imaging, and on image display show and record, as
Later experiments phenomenon analysis data.
Wherein, compound eye type image acquisition fibre-optical probe is combined into by many high-temperature resistant optical fiber photographic head, and simulated hexapod is answered
Ocular structure, arranges according to scattering method；The probe is with one end connection of optical fiber, other end optical fiber and image display（Calculate
Machine）It is connected.
A kind of transparent two-dimensional model of micromodel.Using photo-etching processes technology the true pore system of natural core
Light is carved into sinter molding on planar wave glass.And an aperture is made a call to respectively at two jiaos relatively of model, respectively described model
Inlet and outlet, simulated injection well and extraction well and have selected as needed five feature locations（Such as A-E）, can be direct
The oil displacement process of five feature locations is observed simultaneously；With simulation quality, can be realized several according to the pore structure of oil reservoir natural core
The emulation of what form and displacement process.
Experimental procedure is as follows：
Step one, the top cover labyrinth for opening High Temperature High Pressure micromodel clamper 3, load microcosmic visualization etching model 4 in folder
On the circular step of the inboard wall of cylinder block of holder 3 middle part, during ensure that bubble-free, model 4 are imported and exported between lower cylinder body and micromodel 4
Between be interconnected, slowly tighten the top cover labyrinth of clamper 3, finally ensure whole system in bubble exclude completely, close folder
The atmospheric valve of holder 3.
Step 2, according to Experimental Flowing Object（Such as viscous crude）90 DEG C of required experimental temperature, adjusts the temperature control being connected with clamper 3
Instrument, design temperature is 90 DEG C, treats that temperature reaches or so stable half an hour, starts experiment.First, select in micromodel 4
Multiple feature locations A～E, arrangement compound eye type image capturing system 5, open light source 6, are ready for real-time data acquisition；Then,
Start to inject fluid in model 4, first by micro pump 1 (injection speed in the stratum water injection model in intermediate receptacle 2
Degree changes according to confined pressure：Confined pressure is quickly raised, and speed is tuned up；Confined pressure is slowly raised, and speed is slowed down）, with the rising of confined pressure, adjust
Whole back-pressure valve 8, increases back pressure, it is ensured that the pressure of the injection model of intermediate receptacle 2 is equal with the pressure of back pressure by hand pump 10.Together
Reason carries out saturated oils to the model 4, and the anhydrous outflow in exit of corresponding clamper 3, Ji Jiangliu are exported to the model 4
Till fuel-displaced.In the process, by compound eye type image capturing system 5 of the present invention and image analysis system 7, to the visual thing of microcosmic
Reason model 4 carries out image information collecting record.
After the completion of step 3, saturated oils, treat that whole system stably for a period of time, is closed clamper 3 and exported.Driven according to microcosmos experiment
For type and experimental pressure, injection displacement stratum water, in the process, using compound eye type image capturing system 5 for microcosmic mould
The characteristic area of type 4 carries out dynamic realtime image acquisition, record different time and the image information in displacement stage, in case follow-up place
Reason and analysis.The image real time transfer of the collection of compound eye type image capturing system 5, the visual angle model that on the one hand can be observed as needed
The regulation for being amplified multiple is enclosed, the collection of image so more can be meticulously carried out comprehensively, for the position of position observation
The visual angle that can be observed as needed is amplified the regulation of multiple, comprehensive dynamic tracing local and overall result, Ran Houru
Will for flow direction of the heterogeneous fluid in porous media it is uncertain in the case of, at this moment can to gather result pass through
Changing amplification carries out image mosaic, can also obtain the effective image data for needing.On the other hand, it is same in the confined space
When track the dynamic image of multiple spot, the dynamic change of the image of real time record experimentation, for complicated porous media network
The uncertainty of structure flow direction can effectively be held, and overcome what single camera image collection was attended to one thing and lose sight of another in dynamic process
Problem.
After step 4, experiment terminate, the temperature of clamper 3 and micromodel 4 is slowly reduced by temperature controller, treat that temperature drops
The slow blood pressure lowering to after room temperature, it is ensured that the confined pressure of model 4, inlet and outlet pressure are reduced simultaneously, and pressure reduction is maintained at 0.5Mpa or so, until
Reduced pressure is to atmospheric pressure.
Step 5, to interpretation and subsequent analysis.I.e. using Image semantic classification and to the oil displacement efficiency in micromodel
It is analyzed.That is the pretreatment of image is to remove garbage, and prominent useful information, the operation for carrying out pretreatment to image is main
Including brightness adjustment, gray scale adjustment, setting contrast etc..
On the basis of picture processing, quantitative analyses are carried out to the remaining oil in model.
Wherein quantitative analyses the step of be：
The first step：The pixel number of the figure that microcosmic visual model is formed is obtained, the gray value of each pixel is read；
Second step：The size of each pixel gray value is detected, whether gray value is judged less than 135, record meets the gray value
Pixel number
3rd step：The ratio of pixel number of the gray value less than 135 and figure all pixels point sum is calculated, that is, is obtained oil-containing and is satisfied
And degree, so as to be used for carrying out quantitative analyses to the remaining oil in microcosmic visual model.
The present invention both can carry out overall dynamic tracing when amplification is less, again can be in larger amplification
Carry out the observation of local detail.
The harvester and method of the view data of the present invention has wide applicability, and can effectively be used in needs is carried out
Comprehensively, real-time tracing dynamic process and as needed to gather view data be adjusted and select many necks of angular field of view
Domain, it may have important value and significance.
Claims (5)
1. it is a kind of for high temperature microscopic seepage experiment compound eye type image collecting device, it includes being clamped with microcosmic visual model
Model clamper, displacement system, back pressure system, confined pressure system, pressure monitoring system and temperature control system；
Wherein, the displacement system is used for displacement microcosmic visual model；The back pressure system is connected with model clamper, so that institute
The outlet for stating microcosmic visual model is pressurized to predetermined pressure；The confined pressure system is connected with model clamper, makes the microcosmic
Visual model is all the time in the environment of predetermined pressure；Pressure monitor system is used to monitor confined pressure pressure, back pressure pressure；Temperature control
System processed is connected with the clamper, and for the microcosmic visual model inside clamper a constant temperature environment is provided；Characterized in that,
The system includes image capturing system, and described image acquisition system includes compound eye type image collecting device and graphical analyses subsystem
System, the compound eye type image capturing system carries out image information collecting record to microcosmic visible physical model, and is transported to figure
As analysis system carries out quantitative analyses to the remaining oil in microcosmic visual model.
2. device according to claim 1, it is characterised in that the compound eye type image collector is set to some photographic head, its
In 1 photographic head it is centrally located, other photographic head is along the circumferential direction uniformly arranged.
3. device according to claim 1, it is characterised in that some photographic head can also be arranged using X-type, four points minute
Not She Zhi a photographic head, one, centre position photographic head.
4. the device according to Claims 2 or 3, it is characterised in that the photographic head is compound eye type fiber optic camera head or can
The pin type photographic head of focusing, photographic head adaptive temperature scope is -80 DEG C～200 DEG C；
Wherein 1 photographic head is centrally located, and in addition 4 photographic head are along the circumferential direction uniformly arranged, and microcosmic visual model is
Square, wherein 1 photographic head positions foursquare center, in addition 4 photographic head position the position at foursquare four angles
Put.
5. a kind of device using as described in claim 1-4 any one carries out quantitative analysis method for remaining oil, its
It is characterised by, specifically includes following steps：
Step one：Open micromodel clamper（3）Top cover labyrinth, load microcosmic visualization etching model（4）In microcosmic mould
Type clamper（3）On the circular step of inboard wall of cylinder block middle part, during ensure lower cylinder body and microcosmic visualization etching model（4）Between
Bubble-free, microcosmic visualization etching model（4）It is interconnected between import and export, slowly tightens micromodel clamper（3）It is upper close
Capping, finally ensures that the bubble in whole system is excluded completely, closes micromodel clamper（3）Atmospheric valve；
Step 2：Adjust and micromodel clamper（3）Connected temperature controller, design temperature is 20-90 DEG C, treats that temperature reaches
To half an hour is stablized, start experiment, first, select microcosmic visualization etching model（4）In multiple feature locations A～E, cloth
Put compound eye type image collecting device（5）, open light source（6）, it is ready for real-time data acquisition；Then, start visual to microcosmic
Change etching model（4）Middle injection fluid, by micro pump（1）Intermediate receptacle（2）In stratum water injection model in enclosing
The rising of pressure, adjusts back-pressure valve（8）, by hand pump（10）Increase back pressure, it is ensured that intermediate receptacle（2）The pressure of injection model with
The pressure of back pressure is equal, in the same manner to microcosmic visualization etching model（4）Saturated oils simulation is carried out, is etched to microcosmic visualization
Model（4）Outlet micromodel clamper（3）The anhydrous outflow in exit, will be till effluent oil, in the process, by multiple
Eye image collecting device（5）And image analysis system（7）, to microcosmic visible physical model（4）Carry out image information collecting note
Record；
After the completion of step 3, saturated oils, treat that whole system stably for a period of time, closes micromodel clamper（3）Outlet, according to
Microcosmos experiment displacement type and experimental pressure, injection displacement stratum water, in the process, using compound eye type image collecting device
（5）For microcosmic visualization etching model（4）Characteristic area carry out dynamic realtime image acquisition, record different time and displacement
The image information in stage, in case subsequent treatment and analysis；
After step 4, experiment terminate, micromodel clamper is slowly reduced by temperature controller（3）Etch with microcosmic visualization
Model（4）Temperature value, the slow blood pressure lowering after temperature drops to room temperature, it is ensured that microcosmic visualization etching model（4）Confined pressure, turnover
Mouth pressure is reduced simultaneously, and pressure reduction is maintained at 0.5Mpa, until reduced pressure is to atmospheric pressure；
Step 5, to interpretation and subsequent analysis；I.e. using image capturing system to the oil displacement efficiency in micromodel
It is analyzed, its analysis method is：
The first step：The pixel number of the figure that microcosmic visual model is formed is obtained, the gray value of each pixel is read；
Second step：The size of each pixel gray value is detected, whether gray value each pixel is judged less than 135, if note
Record meets, then record, and does not otherwise record；
3rd step：Pixel number of the statistics gray value less than 135 and the ratio of all pixels point sum in figure, that is, obtain oil-containing
Saturation, so as to be used for carrying out quantitative analyses to the remaining oil in microcosmic visual model.
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| CN109209362A (en) * | 2018-09-07 | 2019-01-15 | 中国石油化工股份有限公司 | Simulate the experimental system, micromodel and its fixed device of reservoir condition |
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| CN112788165A (en) * | 2021-01-05 | 2021-05-11 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN115406806A (en) * | 2022-11-02 | 2022-11-29 | 山东省中地易采石油技术有限责任公司 | Metering device for two-phase seepage experiment of compact oil-gas reservoir |
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| CN112630100A (en) * | 2019-09-24 | 2021-04-09 | 中国石油化工集团有限公司 | Method for analyzing microcosmic seepage rule of reinjection water of thermal reservoir |
| CN110887766A (en) * | 2019-11-01 | 2020-03-17 | 中国石油化工股份有限公司石油勘探开发研究院 | Compact gas-seal-layer mining fluid-solid coupling gas-water nonlinear seepage experimental device and method |
| CN110887766B (en) * | 2019-11-01 | 2022-05-06 | 中国石油化工股份有限公司石油勘探开发研究院 | Compact gas-seal-layer mining fluid-solid coupling gas-water nonlinear seepage experimental device and method |
| CN111487161A (en) * | 2020-06-01 | 2020-08-04 | 中国石油大学(华东) | Micro residual oil generation device based on micro-channel |
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| CN112788165A (en) * | 2021-01-05 | 2021-05-11 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN114518315A (en) * | 2022-03-28 | 2022-05-20 | 西南石油大学 | Microcosmic visual seepage simulation experiment device |
| CN114755149A (en) * | 2022-06-15 | 2022-07-15 | 中国石油大学(华东) | Device and method for evaluating influence of water saturation and mineralization on miscible phase pressure |
| CN114755149B (en) * | 2022-06-15 | 2022-09-02 | 中国石油大学(华东) | Device and method for evaluating influence of water saturation and mineralization degree on miscible phase pressure |
| CN115406806A (en) * | 2022-11-02 | 2022-11-29 | 山东省中地易采石油技术有限责任公司 | Metering device for two-phase seepage experiment of compact oil-gas reservoir |
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