CN106323839B - A kind of experimental method and device measuring nano particle adsorbance in porous media - Google Patents
A kind of experimental method and device measuring nano particle adsorbance in porous media Download PDFInfo
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- CN106323839B CN106323839B CN201610811369.XA CN201610811369A CN106323839B CN 106323839 B CN106323839 B CN 106323839B CN 201610811369 A CN201610811369 A CN 201610811369A CN 106323839 B CN106323839 B CN 106323839B
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 55
- 238000002474 experimental method Methods 0.000 title claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 29
- 238000004088 simulation Methods 0.000 claims abstract description 20
- 238000004821 distillation Methods 0.000 claims abstract description 15
- 239000012153 distilled water Substances 0.000 claims abstract description 13
- 238000002834 transmittance Methods 0.000 claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052681 coesite Inorganic materials 0.000 claims description 13
- 229910052906 cristobalite Inorganic materials 0.000 claims description 13
- 239000000377 silicon dioxide Substances 0.000 claims description 13
- 229910052682 stishovite Inorganic materials 0.000 claims description 13
- 229910052905 tridymite Inorganic materials 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000003463 adsorbent Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 4
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003445 sucroses Chemical class 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0038—Investigating nanoparticles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/0866—Sorption
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to a kind of experimental method and device for measuring nano particle adsorbance in porous media, which includes constant-flux pump, distillation water pot, nano-fluid tank, triple valve, core holding unit, back-pressure valve and production fluid collecting tank；Constant-flux pump is connect with distillation water pot and nano-fluid tank respectively by triple valve, distills water pot and nano-fluid tank is connect with core holding unit respectively, core holding unit is connect by back-pressure valve with production fluid collecting tank.Various concentration nano-fluid light transmittance is measured, the concentration and transmittance standards curve of nano particle are drawn；Simulation core is put into core holding unit and is vacuumized；It is pumped into distilled water and is saturated；It heats simulation core and constant temperature is to simulated formation temperature, nano-fluid is injected in simulation core, production fluid light transmittance is detected, concentrations of nanoparticles in product fluid is obtained according to standard curve, calculates adsorbance.The present invention provides important technical support for absorption situation of the research nano particle in porous media.
Description
Technical field
The measurement method and device for adsorbance that the present invention relates to nano particles in porous media, belong to measurement nano particle
The technical field of adsorption method.
Background technique
Nano-fluid, which refers to, to be distributed to nano level metal or non pinetallic nano particle in the traditional sucroses such as water, alcohol, oil, system
For at uniform and stable novel medium.In recent years, with the increase of the development of nanotechnology and complex reservoir development difficulty,
Nanotechnology is gradually applied to oil-gas field development field, is increasingly becoming the research hotspot being concerned.By nano-fluid
It is injected into porous media, nano particle can be adsorbed on rock surface, this is considered as that it changes reservoir wettability, and raising is adopted
Therefore the important mechanism of yield studies adsorbance of the nano particle in porous media and has very important significance.
Currently, having been reported that and studying gas absorption situation during exploitation of oil-gas field.Such as: Chinese patent text
Part CN104880381A (application number: 201510200875.0) discloses gas dynamic flow-absorption etc. in a kind of danks
Warm constant pressure experimentation device and method, device include: gas pressurized device, for providing the gas source of certain pressure for adsorbent equipment；
Adsorbent equipment receives the gas source of gas pressurized device and pressure control device for carrying sample；Vacuum evacuation device, being used for will
Gas in adsorbent equipment and pressure control device is taken away；Pressure control device makes to adsorb for supplementing gas source to adsorbent equipment
Pressure in device is kept constant；Data collection system, for acquiring the pressure in adsorbent equipment in real time；Temperature control equipment,
Temperature for controlling adsorbent equipment and pressure control device is constant.
But current measurement means, it can not also effectively measure adsorbance of the nano particle in porous media.Therefore,
A kind of measurement nano particle must be designed in the method and apparatus of Porous Medium Adsorption amount, this method and device can be tested and be adsorbed on
The nano particle amount on blowhole surface.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of experiment for measuring nano particle adsorbance in porous media
Method and apparatus.
Technical scheme is as follows:
A kind of experimental method measuring nano particle adsorbance in porous media, comprises the following steps that
(1) then the light transmittance for measuring nano-fluid under different concentrations of nanoparticles draws the concentration and thoroughly of nano particle
Standard curve between light rate；
(2) simulation core is vacuumized, is passed through distilled water to rock core and is saturated, by simulation core constant temperature to simulated formation temperature
Degree；
(3) nano-fluid of known concentrations of nanoparticles is injected into simulation core, collect production fluid and measures production fluid
Light transmittance obtains the concentration of nano particle in production fluid according to standard curve；
(4) it is poor to calculate concentrations of nanoparticles, obtains adsorbance of the nano particle in porous media.
According to the method for the present invention, it is preferred that the nano particle is SiO2、Al2O3, the nano particles such as MgO.
According to the method for the present invention, it is preferred that concentrations of nanoparticles is 0.1-2wt% in step (1)；
Preferably, the nano-fluid light transmittance under different concentrations of nanoparticles is measured using UV-Visible spectrophotometer.
According to the present invention, the experimental provision of above-mentioned measurement nano particle adsorbance in porous media, including constant-flux pump, steaming
Distilled water tank, nano-fluid tank, triple valve, core holding unit, back-pressure valve and production fluid collecting tank；
The constant-flux pump by triple valve respectively with distillation water pot and nano-fluid tank connect, the distillation water pot with
Nano-fluid tank is connect with core holding unit respectively, and the core holding unit is connect by back-pressure valve with production fluid collecting tank.
Device according to the present invention, it is preferred that the experimental provision of measurement nano particle adsorbance in porous media
It further include insulating box, the distillation water pot, nano-fluid tank, triple valve, core holding unit and back-pressure valve are placed in insulating box.
Device according to the present invention, the insulating box place mould in the core holding unit for controlling experimental temperature
Quasi- rock core, the back-pressure valve are used to control the pressure in core holding unit.
The present invention measures the experimental provision of nano particle adsorbance in porous media in use, porous media will be equipped with
Simulation core is placed in core holding unit, and nanoparticle fluid is placed in nano-fluid tank, and distilled water is placed in distillation water pot
It is interior, simulation core is vacuumized by back-pressure valve, opens constant-flux pump, regulating three-way valve is pumped into distilled water in simulation core
And reach saturation, then nanoparticle fluid is pumped into simulation core by regulating three-way valve, is collected by production fluid collecting tank
Production fluid calculates the concentration of nano particle in production fluid using the light transmittance of UV-Visible spectrophotometer measurement production fluid.
The present invention has the advantages that
The present invention provides a kind of measurement nano particles in the experimental method and device of Porous Medium Adsorption amount, can test
The nano particle amount being adsorbed in rock porous media provides important for absorption situation of the research nano particle in porous media
Technical support.
Detailed description of the invention
Fig. 1 is the experimental provision schematic diagram of present invention measurement nano particle adsorbance in porous media.
Wherein, 1, constant-flux pump, 2, distillation water pot, 3, nano-fluid tank, 4, triple valve, 5, core holding unit, 6, back-pressure valve,
7, production fluid collecting tank, 8, insulating box.
Standard curve of the Fig. 2 between the obtained nano-fluid concentration of the embodiment of the present invention 2 and light transmittance.
Fig. 3 is the increase in the embodiment of the present invention 2 with nano-fluid injected slurry volume, concentrations of nanoparticles in production fluid
Change curve.
Specific embodiment
Combined with specific embodiments below and attached drawing, the present invention will be further described, but not limited to this.
Embodiment 1,
As shown in Figure 1, a kind of experimental provision for measuring nano particle adsorbance in porous media, including constant-flux pump 1, steaming
Distilled water tank 2, nano-fluid tank 3, triple valve 4, core holding unit 5, back-pressure valve 6, production fluid collecting tank 7 and insulating box 8；
The constant-flux pump 1 is connect with distillation water pot 2 and nano-fluid tank 3 respectively by triple valve 4, the distilled water
Tank 2 and nano-fluid tank 3 are connect with core holding unit 5 respectively, and the core holding unit 5 is received by back-pressure valve 6 and production fluid
Collect tank 7 to connect, the distillation water pot 2, nano-fluid tank 3, triple valve 4, core holding unit 5 and back-pressure valve 6 are placed in insulating box 8
In.
Embodiment 2,
A kind of experimental method using 1 described device of embodiment measurement nano particle adsorbance in porous media, including
Steps are as follows:
(1) configuration concentration is respectively the SiO of 0.1wt%, 0.5wt%, 0.8wt%, 1wt%, 2wt%2Nano-fluid, and
The SiO under various concentration is tested with UV-Visible spectrophotometer2The light transmittance of nano-fluid, establishes SiO2The concentration of nano-fluid
Standard curve between light transmittance, as shown in Figure 2；
(2) simulation core equipped with porous media is placed in core holding unit 5, is taken out simulation core by back-pressure valve 6
Vacuum, by the SiO of 1wt%2Nanoparticle fluid is placed in nano-fluid tank 3, and distilled water is placed in distillation water pot 2, is adjusted
Triple valve 4 is pumped into distilled water in simulation core and reaches saturation, using insulating box 8 by simulation core constant temperature to simulating ground
Layer temperature 60 C；
(3) by 1wt%SiO2Nanoparticle fluid injects in simulation core, injection rate 0.1mL/min, SiO2Nanometer
Granule fluid injection rate is 4PV, then infuses distilled water.From injection SiO2Nanoparticle fluid starts, and passes through output at output end
Liquid collecting tank 7 collects production fluid, takes 2ml production fluid every time, is sealed, takes the production fluid of 100 bottles of 2ml altogether.
Part SiO2Nano particle can be adsorbed in porous media, detect the saturating of production fluid by UV-Visible spectrophotometer
SiO in production fluid is calculated according to standard curve in light rate2Concentrations of nanoparticles, as shown in Figure 3；
(4) SiO is calculated2Concentrations of nanoparticles is poor, obtains SiO2Adsorbance of the nano particle in porous media.
Claims (1)
1. a kind of experimental method for measuring nano particle adsorbance in porous media, including experimental provision is used, experiment dress
It sets and is collected including constant-flux pump, distillation water pot, nano-fluid tank, triple valve, core holding unit, back-pressure valve, insulating box and production fluid
Tank；
The constant-flux pump is connect with distillation water pot and nano-fluid tank respectively by triple valve, the distillation water pot and nanometer
Fluid tank is connect with core holding unit respectively, and the core holding unit is connect by back-pressure valve with production fluid collecting tank, described
Distillation water pot, nano-fluid tank, triple valve, core holding unit and back-pressure valve be placed in insulating box；
It comprises the following steps that
(1) configuration concentration is respectively the SiO of 0.1wt%, 0.5 wt%, 0.8 wt%, 1 wt%, 2wt%2Nano-fluid, and with ultraviolet
Visible spectrometry tests the SiO under various concentration2The light transmittance of nano-fluid, establishes SiO2The concentration and light transmission of nano-fluid
Standard curve between rate；
(2) simulation core equipped with porous media is placed in core holding unit, is vacuumized simulation core by back-pressure valve, it will
The SiO of 1wt%2Nanoparticle fluid is placed in nano-fluid tank, distilled water is placed in distillation water pot, regulating three-way valve makes
Distilled water is pumped into simulation core and reaches saturation, using insulating box by simulation core constant temperature to simulated formation temperature 60 C；
(3) by 1wt%SiO2Nanoparticle fluid injects in simulation core, injection rate 0.1mL/min, SiO2Nano particle stream
Body injection rate is 4PV, then infuses distilled water；From injection SiO2Nanoparticle fluid starts, and is collected at output end by production fluid
Tank collects production fluid, takes 2ml production fluid every time, is sealed, takes the production fluid of 100 bottles of 2ml altogether；
Part SiO2Nano particle can be adsorbed in porous media, and the light transmittance of production fluid is detected by UV-Visible spectrophotometer,
SiO in production fluid is calculated according to standard curve2Concentrations of nanoparticles；
(4) SiO is calculated2Concentrations of nanoparticles is poor, obtains SiO2Adsorbance of the nano particle in porous media.
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| CN110702577B (en) * | 2019-10-15 | 2022-05-03 | 中国海洋石油集团有限公司 | Device and method for visualizing dynamic adsorption of polymer in micro-pore model |
| CN111622722B (en) * | 2020-05-26 | 2022-03-15 | 太原理工大学 | By using supercritical CO2Method for improving coal bed gas recovery ratio by using Nano-Silica |
| CN112505298B (en) * | 2020-12-01 | 2022-02-15 | 西南石油大学 | In-situ test method for compact oil gas storage and production performance parameters |
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| CN101458206A (en) * | 2007-12-14 | 2009-06-17 | 朱勇强 | Method for rapidly measuring material retention on paper making net |
| CN101551319A (en) * | 2009-05-05 | 2009-10-07 | 天津大学 | Method for measuring concentration of suspended particles in the drainage of sewage treatment industry |
| CN101590397A (en) * | 2009-06-25 | 2009-12-02 | 同济大学 | A kind of preparation method of modified zeolite adsorbent and application |
| CN102921372A (en) * | 2011-08-11 | 2013-02-13 | 同济大学 | Layered hydroxy composite metal oxide, and preparation method and application thereof |
| CN105628579A (en) * | 2015-12-21 | 2016-06-01 | 中国石油大学(北京) | Shale spontaneous imbibition measurement device |
| CN105880268A (en) * | 2016-06-21 | 2016-08-24 | 天津师范大学 | Method for regulating heavy metal adsorption in single system using carbon nanomaterial |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6836332B2 (en) * | 2001-09-25 | 2004-12-28 | Tennessee Scientific, Inc. | Instrument and method for testing fluid characteristics |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458206A (en) * | 2007-12-14 | 2009-06-17 | 朱勇强 | Method for rapidly measuring material retention on paper making net |
| CN101551319A (en) * | 2009-05-05 | 2009-10-07 | 天津大学 | Method for measuring concentration of suspended particles in the drainage of sewage treatment industry |
| CN101590397A (en) * | 2009-06-25 | 2009-12-02 | 同济大学 | A kind of preparation method of modified zeolite adsorbent and application |
| CN102921372A (en) * | 2011-08-11 | 2013-02-13 | 同济大学 | Layered hydroxy composite metal oxide, and preparation method and application thereof |
| CN105628579A (en) * | 2015-12-21 | 2016-06-01 | 中国石油大学(北京) | Shale spontaneous imbibition measurement device |
| CN105880268A (en) * | 2016-06-21 | 2016-08-24 | 天津师范大学 | Method for regulating heavy metal adsorption in single system using carbon nanomaterial |
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