CN116125034A - Microscopic visualization simulation experiment device for carbon and hydrogen storage of stratum and experiment method thereof - Google Patents
Microscopic visualization simulation experiment device for carbon and hydrogen storage of stratum and experiment method thereof Download PDFInfo
- Publication number
- CN116125034A CN116125034A CN202211637996.8A CN202211637996A CN116125034A CN 116125034 A CN116125034 A CN 116125034A CN 202211637996 A CN202211637996 A CN 202211637996A CN 116125034 A CN116125034 A CN 116125034A
- Authority
- CN
- China
- Prior art keywords
- chip model
- microfluidic chip
- hydrogen
- carbon
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/241—Earth materials for hydrocarbon content
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention provides a stratum carbon and hydrogen storage microscopic visual simulation experiment device and an experiment method thereof, belonging to the technical field of physical simulation; the fluid storage system is used for storing gas and liquid; the microfluidic chip model is used for providing a fluid action place for the gas embedding process; the microfluidic chip model clamping system is used for clamping and fixing the microfluidic chip model; the image real-time acquisition and analysis system is used for acquiring and processing information and recording the experimental process. The method can solve the problems that the migration distribution process of each fluid in the core cannot be observed by the core displacement device, the intrinsic knowledge of burying is unclear, the conventional visual experimental device cannot simulate the high-temperature and high-pressure condition of a real reservoir and quantitative analysis of burying is difficult to carry out.
Description
Technical Field
The invention belongs to the technical field of physical simulation, and particularly relates to a microscopic visual simulation experiment device for carbon and hydrogen storage of a stratum and an experiment method thereof.
Background
In recent years, carbon dioxide-based greenhouse gases have caused a series of global environmental problems, and carbon dioxide emission reduction has become a common focus of attention. Carbon capture and storage (CSS) is one of the most promising solutions to reduce atmospheric carbon emissions and thereby reduce global warming, with the core idea being to capture, separate carbon dioxide from the emissions sources, transport it to designated sites for sequestration in deep formations, thereby preventing or significantly reducing its emissions to the atmosphere. Currently suitable as the main carbon dioxide geological reservoirs are: depleted reservoirs, deep brine layers, and coal seams of no mined value.
Besides carbon capture and storage, renewable energy sources are widely applied, greenhouse effect is relieved, and the method is a trend of global energy development nowadays. Hydrogen is considered an attractive energy carrier due to its high energy per unit mass and clean combustion products. However, due to the intermittence and volatility of renewable resources, there may be a problem of mismatch between demand and supply, and intermediate energy storage may be used as a solution. But because of the low density of hydrogen, surface storage facilities cannot provide the capacity required for large-scale energy storage. Geological structures, such as abandoned hydrocarbon reservoirs, aquifers and salt caverns, have proven to be a safe storage option for gases such as carbon dioxide, and may also provide potential solutions for hydrogen storage.
In order to fully reveal the migration rules, retention characteristics and trapping mechanisms of carbon dioxide/hydrogen in different formations, a physical model needs to be established for testing. At present, research on stratum carbon and hydrogen storage mainly focuses on specific reservoir types, and the adopted method is still a rock core displacement device and a conventional visual experimental device. The core displacement device mainly adopts a real core to simulate a geological reservoir, and has higher authenticity, but is only macroscopically embodied, so that the migration distribution process of each fluid in the core can not be observed, and the intrinsic knowledge of the burying is unclear. The conventional visual experimental device also has the problems that the condition of high temperature and high pressure of a real reservoir cannot be reproduced and the buried quantitative analysis is difficult to carry out.
Disclosure of Invention
In view of the above, the invention provides a microscopic visual simulation experiment device for stratum carbon and hydrogen storage and an experiment method thereof, which can solve the problems that a rock core displacement device cannot observe the migration distribution process of each fluid in a rock core, the intrinsic knowledge of burying is unclear, and a conventional visual experiment device cannot reproduce the high-temperature and high-pressure conditions of a real reservoir and is difficult to quantitatively analyze burying.
The invention is realized in the following way:
the first aspect of the invention provides a microscopic visualization simulation experiment device for stratum carbon and hydrogen storage, which comprises a pressure control and injection system, a fluid storage system, a microfluidic chip model clamping system and an image real-time acquisition and analysis system;
the fluid storage system is used for storing gas and liquid;
the microfluidic chip model is used for providing a fluid action place for the gas embedding process;
the microfluidic chip model clamping system is used for clamping and fixing the microfluidic chip model;
the image real-time acquisition and analysis system is used for acquiring and processing information and recording an experimental process.
The microscopic visualization simulation experiment device for the carbon and hydrogen storage of the stratum has the following technical effects: the gas is one of carbon dioxide and hydrogen. By establishing the microfluidic chip model, the consumption rate of the sample is reduced, and the efficiency of data analysis is improved.
Based on the technical scheme, the microscopic visual simulation experiment device for the formation carbon and hydrogen storage can be further improved as follows:
the microfluidic chip model clamping system comprises a clamping bin, an observation window, a heating wire, a first injection port, a second injection port, a first extraction port and a second extraction port, wherein the clamping bin is used for fixing the microfluidic chip model, the observation window is arranged on the clamping bin, the heating wire is used for providing the temperature required by an experiment for the microfluidic chip model, the first injection port and the second injection port are connected with an outlet of the fluid storage system through pipelines, and the first extraction port and the second extraction port are connected with a back pressure pump through the pipelines.
The beneficial effects of adopting above-mentioned improvement scheme are: the observation window is made of toughened glass, and by arranging the observation window, the experimental effect is better observed, and meanwhile, the observation safety is improved; through setting up the centre gripping storehouse, make micro-fluidic chip model more firm, the convenient experimental process of observing.
Further, the fluid storage system comprises a first intermediate container, a second intermediate container, a third intermediate container, a fourth intermediate container, a fifth intermediate container and a sixth intermediate container for storing injection water, crude oil, methane gas, carbon dioxide gas, hydrogen gas and simulated formation water, respectively.
The beneficial effects of adopting above-mentioned improvement scheme are: by arranging the intermediate container, the experimental fluid can be safely stored.
The pressure control and injection system comprises a vacuum pump, an injection pump, a confining pressure pump, a back pressure pump and a constant pressure pump, wherein the vacuum pump is connected with the clamping bin through a pipeline and used for carrying out vacuumizing operation on the microfluidic chip model, the injection pump is sequentially connected with the first intermediate container, the second intermediate container, the third intermediate container, the fourth intermediate container, the fifth intermediate container and the clamping bin through the pipeline and used for realizing fluid injection operation on the microfluidic chip model, the confining pressure pump is connected with the clamping bin through the pipeline and used for realizing confining pressure control on the microfluidic chip model, the back pressure pump is connected with the clamping bin through the pipeline and used for realizing back pressure control on the microfluidic chip model, and the constant pressure pump is connected with the sixth intermediate container and the clamping bin through the pipeline and used for realizing constant pressure water injection on the microfluidic chip model.
The data acquisition and analysis system comprises a computer, a pressure sensor and a digital camera, wherein the pressure sensor is respectively arranged on a fluid inlet pipeline and a fluid outlet pipeline, the pressure sensor is used for recording pressure changes inside the microfluidic chip model, the computer is used for processing information acquired by the pressure sensor, the pressure sensor and the digital camera are electrically connected with each other, the digital camera is arranged on the observation window, and the digital camera is used for recording experimental processes.
The beneficial effects of adopting above-mentioned improvement scheme are: calculating and analyzing the experimental collected sample by arranging a computer; by providing a pressure sensor, the force is monitored and a non-electrical physical quantity that can be converted into a force.
The microfluidic chip model consists of an etching layer and a cover layer, wherein the etching layer and the cover layer are bonded through plasma treatment.
Further, an etching area is arranged on the etching layer, the etching area is composed of a first liquid inlet, a second liquid inlet, a seepage area, a diversion channel, a first liquid production channel and a second liquid production channel, the cover layer is composed of a first liquid inlet, a second liquid inlet, a first liquid production port and a second liquid production port, the seepage area is composed of pore-throat structures of round particles, the pore-throat structures of the storage layer are represented by uniform distribution of the round particles, and the diversion channel is arranged at the lower end of the seepage area and used for stable injection of fluid.
The second aspect of the invention provides an experimental method of a microscopic visual simulation experiment device for the formation carbon and hydrogen storage, wherein the microscopic visual simulation experiment device for the formation carbon and hydrogen storage comprises the following steps:
s1: the injected water, crude oil, methane gas, carbon dioxide, hydrogen gas and simulated formation water were each charged into an intermediate vessel, and the temperature of the intermediate vessel was adjusted to the temperature required for the experiment.
S2: the microfluidic chip model is mounted on a clamping bin of a microfluidic chip model clamping system and aligned with the fluid injection and extraction port.
S3: and vacuumizing the microfluidic chip model and the clamping bin by using a vacuum pump.
S4: the model is preprocessed to simulate the fluid distribution states of different types of reservoirs respectively.
S5: and setting back pressure on the microfluidic chip model by a back pressure pump, injecting carbon dioxide/hydrogen by using an injection pump at a pressure slightly higher than the set back pressure, and simulating the carbon dioxide/hydrogen burying process.
S6: the pressure sensor and the digital camera are used for recording the pressure and the image in the carbon dioxide/hydrogen burying process, and the injection of the carbon dioxide/hydrogen is stopped when the fluid distribution in the model is not changed any more.
S7: and analyzing the migration rule, retention characteristics and trapping mechanism of carbon dioxide/hydrogen in the porous medium by using data and images recorded by the pressure sensor and the digital camera.
On the basis of the technical scheme, the experimental method of the microscopic visualization simulation experimental device for the formation carbon and hydrogen storage can be improved as follows:
further, the calculation formula of the carbon dioxide/hydrogen sequestration efficiency is as follows:
wherein S is the carbon dioxide/hydrogen burying efficiency in units of; n is the number of carbon dioxide/hydrogen pixels in a certain permeability area, and the unit is 1; n (N) Total (S) The unit is 1 for the total number of pixels in the region.
Furthermore, the plurality of intermediate containers in the S1 are arranged, and the simulation of the distribution state of different types of reservoir fluids can be realized by controlling the sequence of the displacement fluid passing through the microfluidic chip model.
The microscopic visualization simulation experiment device for the carbon and hydrogen storage of the stratum and the experiment method thereof have the beneficial effects that: the device can realize high-temperature and high-pressure simulation under the same temperature and pressure conditions as the reservoir, and pretreats the microfluidic chip model by injecting different types of fluid so as to simulate different types of geological reservoirs; in addition, the device is provided with an image real-time acquisition system and a data analysis system, and the migration rule, the retention characteristic and the trapping mechanism in the carbon dioxide/hydrogen embedding process under the pore scale are basically known through a method combining microscopic observation and quantitative analysis, so that theoretical guidance is provided for large-scale embedding in engineering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a microscopic visualization simulation experiment device for the storage of carbon and hydrogen in a stratum;
FIG. 2 is a cross-sectional view of a microfluidic model of a microscopic visualization simulation experiment device for the storage of carbon and hydrogen in a stratum;
FIG. 3 is a front view of a microfluidic chip model of a microscopic visualization simulation experiment device for the storage of carbon and hydrogen in a stratum;
FIG. 4 is a left side view of a micro-fluidic chip model of a stratum carbon and hydrogen storage microscopic visual simulation experiment device;
FIG. 5 is a flow chart of an experimental method of a microscopic visualization simulation experiment device for the storage of carbon and hydrogen in a stratum;
FIG. 6 is an electrical connection diagram of a microscopic visualization simulation experiment device for the storage of carbon and hydrogen in a stratum;
in the drawings, the list of components represented by the various numbers is as follows:
1. a microfluidic chip model; 10. a first intermediate container; 11. a second intermediate container; 12. a third intermediate container; 13. a fourth intermediate container; 14. a fifth intermediate container; 15. a sixth intermediate container; 16. a vacuum pump; 17. a syringe pump; 18. a confining pressure pump; 19. a constant pressure pump; 2. a clamping bin; 20. a computer; 21. a pressure sensor; 22. a digital camera; 23. a pipeline; 24. etching the layer; 25. a cover layer; 26. etching the area; 27. a first liquid inlet channel; 28. a second liquid inlet channel; 29. a seepage region; 3. an observation window; 30. a diversion channel; 31. a first liquid-producing channel; 32. a second liquid-producing channel; 33. a first liquid inlet; 34. a second liquid inlet; 35. a first liquid-producing port; 36. a second liquid-producing port; 4. a heating wire; 5. a first injection port; 6. a second injection port; 7. a first extraction port; 8. a second extraction port; 9. and a return pressure pump.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
1-4, a first embodiment of a microscopic visual simulation experiment device for formation carbon and hydrogen storage is provided according to a first aspect of the present invention, where the device includes a pressure control and injection system, a fluid storage system, a microfluidic chip model 1, a microfluidic chip model clamping system, and an image real-time acquisition and analysis system;
the fluid storage system is used for storing gas and liquid;
the microfluidic chip model 1 is used for providing a fluid action place for a gas embedding process;
the microfluidic chip model clamping system is used for clamping and fixing a microfluidic chip model;
the image real-time acquisition and analysis system is used for acquiring and processing information and recording the experimental process.
Wherein, in above-mentioned technical scheme, microfluidic chip model clamping system includes centre gripping storehouse 2, observation window 3, heater strip 4, first filling opening 5, second filling opening 6, first extraction opening 7 and second extraction opening 8, centre gripping storehouse 2 is used for fixed microfluidic chip model 1, the observation window 3 sets up on centre gripping storehouse 2, heater strip 4 is used for providing the required temperature of experiment to microfluidic chip model 1, first filling opening 5 and second filling opening 6 link to each other with fluid storage system's export through pipeline 23, first extraction opening 7 and second extraction opening 8 link to each other with back pressure pump 9 through pipeline 23.
Wherein, the heating wire 4 can be a high-temperature heating wire with the model of OCR25AL5 produced by cistai electric heating material Co., ltd; the return pressure pump 9 can be an electric pressure test pump with the model number of 4DSY manufactured by the Tazhou macrocyclic lifting protective equipment limited company.
Further, in the above technical solution, the fluid storage system includes a first intermediate container 10, a second intermediate container 11, a third intermediate container 12, a fourth intermediate container 13, a fifth intermediate container 14, and a sixth intermediate container 15, which are respectively used for storing injected water, crude oil, methane gas, carbon dioxide gas, hydrogen gas, and simulated formation water.
In the above technical solution, the pressure control and injection system includes a vacuum pump 16, an injection pump 17, a confining pressure pump 18, a back pressure pump 9 and a constant pressure pump 19, where the vacuum pump 16 is connected with the clamping bin 2 through a pipeline 23 and is used for performing a vacuumizing operation on the microfluidic chip model 1, the injection pump 17 is sequentially connected with the first intermediate container 10, the second intermediate container 11, the third intermediate container 12, the fourth intermediate container 13, the fifth intermediate container 14 and the clamping bin 2 through a pipeline 23 and is used for implementing an injection fluid operation on the microfluidic chip model 1, the confining pressure pump 18 is connected with the clamping bin 2 through the pipeline 23 and is used for implementing confining pressure control on the microfluidic chip model 1, the constant pressure pump 9 is connected with the clamping bin 2 through the pipeline 23 and is used for implementing a back pressure control on the microfluidic chip model 1, and the constant pressure pump 19 is connected with the sixth intermediate container 15 and the clamping bin 2 through the pipeline 23 and is used for implementing a constant pressure injection water on the microfluidic chip model 1.
Wherein, the vacuum pump 16 can be selected from the vacuum pumps with the model number of V-i280SV manufactured by Liaoning Dahua refrigeration plant Co., ltd; the syringe pump 17 can be selected from a syringe pump with the model LSP01-2A manufactured by Baoding Lange constant flow pump Co., ltd; the confining pressure pump 18 can be selected from a confining pressure pump with a model TSZ10-01 manufactured by Yinyan Jian instruments Co., ltd; the constant pressure pump 19 may be selected from those manufactured by Wenzhou Wei Wang Bengfa, inc. under the model number CDLF 12-110.
In the above technical solution, as shown in fig. 6, the data acquisition and analysis system includes a computer 20, a pressure sensor 21 and a digital camera 22, where the pressure sensor 21 is respectively disposed on a fluid inlet pipeline and a fluid outlet pipeline, the pressure sensor 21 is used for recording pressure changes inside the microfluidic chip model 1, the computer 20 is used for processing information acquired by the pressure sensor 21, the pressure sensor 21 and the digital camera 22 are all electrically connected with the computer 20, the digital camera is disposed on the observation window 3, and the digital camera is used for recording experimental processes.
Wherein the computer 20 is a general purpose computer; the pressure sensor 21 may be a pressure sensor of KS-N-E-E manufactured by Shanghai European technology Co., ltd; the digital camera 22 may be a Canon EOS-1D X Mark II.
In the above technical solution, the microfluidic chip model 1 is composed of an etching layer 24 and a cover layer 25, and the etching layer 24 and the cover layer 25 are bonded by plasma treatment.
Further, in the above technical solution, the etching layer 24 is provided with the etching area 26, the etching area 26 is composed of the first liquid inlet channel 27, the second liquid inlet channel 28, the seepage area 29, the diversion channel 30, the first liquid producing channel 31 and the second liquid producing channel 32, the cover layer 25 is composed of the first liquid inlet 33, the second liquid inlet 34, the first liquid producing port 35 and the second liquid producing port 36, the seepage area 29 is composed of the pore-throat structure of the circular particles with uniform distribution representing the reservoir, and the diversion channel is provided at the lower end of the seepage area 29 for smooth injection of fluid.
Referring to fig. 5, a flowchart of an experimental method of a microscopic visual simulation experiment device for formation carbon and hydrogen storage according to a second aspect of the present invention is provided, and the microscopic visual simulation experiment device for formation carbon and hydrogen storage is adopted, and comprises the following steps:
s1: the injected water, crude oil, methane gas, carbon dioxide, hydrogen gas and simulated formation water were each charged into an intermediate vessel, and the temperature of the intermediate vessel was adjusted to the temperature required for the experiment.
S2: the microfluidic chip model is mounted on a clamping bin of a microfluidic chip model clamping system and aligned with the fluid injection and extraction port.
S3: and vacuumizing the microfluidic chip model and the clamping bin by using a vacuum pump.
S4: preprocessing the model to simulate the fluid distribution state of different types of reservoirs respectively
S5: and setting back pressure on the microfluidic chip model by a back pressure pump, injecting carbon dioxide/hydrogen by using an injection pump at a pressure slightly higher than the set back pressure, and simulating the carbon dioxide/hydrogen burying process.
S6: the pressure sensor and the digital camera are used for recording the pressure and the image in the carbon dioxide/hydrogen burying process, and the injection of the carbon dioxide/hydrogen is stopped when the fluid distribution in the model is not changed any more.
S7: and analyzing the migration rule, retention characteristics and trapping mechanism of carbon dioxide/hydrogen in the porous medium by using data and images recorded by the pressure sensor and the digital camera.
Further, in the above technical scheme, the calculation formula of the carbon dioxide/hydrogen sequestration efficiency is as follows:
wherein S is the carbon dioxide/hydrogen burying efficiency in units of; n is the number of carbon dioxide/hydrogen pixels in a certain permeability area, and the unit is 1; n (N) Total (S) The unit is 1 for the total number of pixels in the region.
Furthermore, in the above technical scheme, the plurality of intermediate containers in S1 are provided, and by controlling the sequence of the displacement fluid passing through the microfluidic chip model, the simulation of the distribution states of different types of reservoir fluids can be realized.
Embodiment one:
the invention provides a microscopic visualization simulation experiment device for stratum carbon and hydrogen storage and a first embodiment of an experiment method thereof, taking a simulated pure salty water layer as an example, comprising the following steps:
step 1: the injected water was charged into the first intermediate container 10, carbon dioxide gas was charged into the fourth intermediate container 13, hydrogen gas was charged into the fifth intermediate container 14, and the temperature of the intermediate containers was adjusted to the temperature required for the experiment.
Step 2: the microfluidic chip model 1 is mounted on the holding bin 2 and aligned with the first injection port 5 and the first extraction port 7.
Step 3: the microfluidic chip model 1 is subjected to a vacuum pumping operation using a vacuum pump 16.
Step 4: the injection pump 17 is used for carrying out saturated water operation on the micro-fluidic chip model 1, meanwhile, the confining pressure is increased on the micro-fluidic chip model 1 by the confining pressure pump 18 according to the pressure required by the experiment, and the micro-fluidic chip model 1 is heated to the temperature required by the experiment by the heating wire 4; an image during injection of the injection water is recorded with the digital camera 22, and the injection is stopped when no change in the injection water distribution occurs any more.
Step 5: the injection pump 17 is used for injecting carbon dioxide/hydrogen into the microfluidic chip model 1, the carbon dioxide/hydrogen embedding process is simulated, meanwhile, the pressure sensor 21 and the digital camera 22 are used for recording the pressure and the image in the carbon dioxide/hydrogen embedding process, and the injection of the carbon dioxide/hydrogen is stopped when the injected water in the model is not reduced any more.
Step 6: the data and images recorded by the pressure sensor 21 and the digital camera 22 are utilized to analyze the migration rule, retention characteristics and trapping mechanism of carbon dioxide/hydrogen in the porous medium, and the calculation formula of the carbon dioxide/hydrogen burial efficiency is as follows:
wherein S is the carbon dioxide/hydrogen burying efficiency in units of; n is the number of carbon dioxide/hydrogen pixels in a certain permeability area, and the unit is 1; n (N) Total (S) The unit is 1 for the total number of pixels in the region.
Embodiment two:
the invention provides a microscopic visualization simulation experiment device for stratum carbon and hydrogen storage and a second embodiment of an experiment method thereof, taking the simulation of a depleted oil reservoir as an example, comprising the following steps:
step 1: formation water was charged into the first intermediate tank 10, crude oil was charged into the second intermediate tank 11, carbon dioxide gas was charged into the fourth intermediate tank 13, hydrogen gas was charged into the fifth intermediate tank 14, and the temperature of the intermediate tanks was adjusted to the temperature required for the experiment.
Step 2: the microfluidic chip model 1 is mounted on the holding bin 2 and aligned with the first injection port 5 and the first extraction port 7.
Step 3: the microfluidic chip model 1 is subjected to a vacuum pumping operation using a vacuum pump 16.
Step 4: the injection pump 17 is used for carrying out saturated crude oil operation on the micro-fluidic chip model 1, meanwhile, the confining pressure is increased on the micro-fluidic chip model 1 by the confining pressure pump 18 according to the pressure required by the experiment, and the micro-fluidic chip model 1 is heated to the temperature required by the experiment by the heating wire 4; the image of the crude oil injection process is recorded with the digital camera 22 and the injection is stopped when the crude oil distribution is no longer changing. Crude oil was aged in microfluidic chip model 1 for 24 hours.
Step 5: and water is injected into the microfluidic chip model 1 by using the injection pump 17, the water flooding exploitation of an oil reservoir is simulated, meanwhile, the pressure and images in the water injection process are recorded by using the pressure sensor 21 and the digital camera 22, and when crude oil in the model is not reduced any more, the injection is stopped, and the fluid distribution state of the depleted oil reservoir is simulated.
Step 6: the injection pump 17 is used for injecting carbon dioxide/hydrogen into the microfluidic chip model 1, the reservoir carbon dioxide/hydrogen burying process is simulated, meanwhile, the pressure sensor 21 and the digital camera 22 are used for recording the pressure and the image in the injection process, and the injection is stopped when the injected water in the model is not reduced any more.
Step 7: analyzing the migration rule, retention characteristics and trapping mechanism of carbon dioxide/hydrogen in the porous medium by using data and images recorded by the pressure sensor 21 and the digital camera 22, wherein the calculation formula of the carbon dioxide/hydrogen trapping efficiency is as follows;
wherein S is the carbon dioxide/hydrogen burying efficiency in units of; n is the number of carbon dioxide/hydrogen pixels in a certain permeability area, and the unit is 1; n (N) Total (S) The unit is 1 for the total number of pixels in the region.
Embodiment III:
the invention provides a microscopic visual simulation experiment device for stratum carbon and hydrogen storage and a third embodiment of an experiment method thereof, taking waste gas reservoir with bottom water as an example, comprising the following steps:
step 1: the injection water was charged into the first intermediate container 10, methane gas was charged into the third intermediate container 12, carbon dioxide gas was charged into the fourth intermediate container 13, hydrogen gas was charged into the fifth intermediate container 14, simulated formation water was charged into the sixth intermediate container 15, and the temperature of the intermediate containers was adjusted to the temperature required for the experiment.
Step 2: the microfluidic chip model 1 is mounted on the holding bin 2 and aligned with the second injection port 6 and the second extraction port 8.
Step 3: and vacuumizing the microfluidic chip model 1 and the holding bin 2 by using a vacuum pump 16.
Step 4: methane gas is injected into the micro-fluidic chip model 1 by using an injection pump 17 to perform saturated gas operation, and meanwhile, the confining pressure is increased to the micro-fluidic chip model 1 by using a confining pressure pump 18 according to the pressure required by the experiment, and the micro-fluidic chip model 1 is heated to the temperature required by the experiment by using a heating wire 4.
Step 5: the back pressure is set for the micro-fluidic chip model 1 through the back pressure pump 9, simulated formation water is injected into the micro-fluidic chip model 1 from the second injection opening 6 at a constant pressure by utilizing the constant pressure pump 19, methane gas is extracted from the second extraction opening 8 through a pipeline, image acquisition is carried out at the same time, and the injection of the simulated formation water is stopped when the methane gas in the model is not reduced any more, so that the failure exploitation of the bottom water and gas reservoir is simulated.
Step 6: the injection pump 17 is used for injecting carbon dioxide/hydrogen into the microfluidic chip model 1 from the second injection port 6, simulating the carbon dioxide/hydrogen embedding process of the waste gas reservoir, simultaneously using the pressure sensor 21 and the digital camera 22 to record the pressure and the image in the carbon dioxide/hydrogen embedding process, and stopping injecting the carbon dioxide/hydrogen when simulated formation water in the model is not changed any more.
Step 7: the data and images recorded by the pressure sensor 21 and the digital camera 22 are utilized to analyze the migration rule, retention characteristics and trapping mechanism of carbon dioxide/hydrogen in the porous medium, and the calculation formula of the carbon dioxide/hydrogen burial efficiency is as follows:
wherein S is the carbon dioxide/hydrogen burying efficiency in units of; n is the number of carbon dioxide/hydrogen pixels in a certain permeability area, and the unit is 1; n (N) Total (S) The unit is 1 for the total number of pixels in the region.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A microscopic visualization simulation experiment device for stratum carbon and hydrogen storage comprises a pressure control and injection system, a fluid storage system, a microfluidic chip model (1), a microfluidic chip model clamping system and an image real-time acquisition and analysis system;
the fluid storage system is used for storing gas and liquid;
the microfluidic chip model (1) is used for providing a fluid action place for a gas embedding process;
the microfluidic chip model clamping system is used for clamping and fixing the microfluidic chip model (1);
the image real-time acquisition and analysis system is used for acquiring and processing information and recording an experimental process.
2. The stratum carbon and hydrogen storage microscopic visual simulation experiment device according to claim 1, wherein the micro-fluidic chip model clamping system comprises a clamping bin (2), an observation window (3), a heating wire (4), a first injection opening (5), a second injection opening (6), a first extraction opening (7) and a second extraction opening (8), the clamping bin (2) is used for fixing the micro-fluidic chip model (1), the observation window (3) is arranged on the clamping bin (2), the heating wire (4) is used for providing the micro-fluidic chip model (1) with the temperature required by an experiment, the first injection opening (5) and the second injection opening (6) are connected with an outlet of the fluid storage system through a pipeline (23), and the first extraction opening (7) and the second extraction opening (8) are connected with the back pressure pump (9) through the pipeline (23).
3. A microscopic visualization simulation experiment device for storing carbon and hydrogen in a formation according to claim 2, wherein the fluid storage system comprises a first intermediate container (10), a second intermediate container (11), a third intermediate container (12), a fourth intermediate container (13), a fifth intermediate container (14) and a sixth intermediate container (15) for storing injected water, crude oil, methane gas, carbon dioxide gas, hydrogen gas and simulated formation water, respectively.
4. The microscopic simulation experiment device for the formation storage of hydrocarbons and hydrogen according to claim 1, wherein the pressure control and injection system comprises a vacuum pump (16), an injection pump (17), a confining pressure pump (18), a back pressure pump (9) and a constant pressure pump (19), wherein the vacuum pump (16) is connected with the clamping bin (2) through the pipeline (23) for performing a vacuumizing operation on the microfluidic chip model (1), the injection pump (17) is sequentially connected with the first intermediate container (10), the second intermediate container (11), the third intermediate container (12), the fourth intermediate container (13), the fifth intermediate container (14) and the clamping bin (2) through the pipeline (23), for realizing an injection fluid operation on the microfluidic chip model (1), the confining pressure pump (18) is connected with the clamping bin (2) through the pipeline (23) for realizing a vacuumizing operation on the microfluidic chip model (1), the confining pressure pump (9) is connected with the clamping bin (2) through the pipeline (23) for realizing a constant pressure operation on the microfluidic chip model (1), the device is used for realizing constant-pressure water injection to the microfluidic chip model (1).
5. The microscopic visual simulation experiment device for the formation carbon and hydrogen storage according to claim 1, wherein the data acquisition and analysis system comprises a computer (20), a pressure sensor (21) and a digital camera (22), the pressure sensor (21) is respectively arranged on a fluid inlet pipeline and a fluid outlet pipeline, the pressure sensor (21) is used for recording pressure changes in the microfluidic chip model (1), the computer (20) is used for processing information acquired by the pressure sensor (21), the pressure sensor (21) and the digital camera (22) are electrically connected with the computer (20), the digital camera (22) is arranged on the observation window (3), and the digital camera (22) is used for recording experiment processes.
6. The microscopic visualization simulation experiment device for the formation carbon and hydrogen storage according to claim 1, wherein the microfluidic chip model (1) consists of an etching layer (24) and a cover layer (25), and the etching layer (24) and the cover layer (25) are bonded through plasma treatment.
7. The microscopic visual simulation experiment device for the formation carbon and hydrogen storage according to claim 6, wherein an etching area (26) is arranged on the etching layer (24), the etching area (26) is composed of a first liquid inlet channel (27), a second liquid inlet channel (28), a seepage area (29), a diversion channel (30), a first liquid production channel (31) and a second liquid production channel (32), the cover layer (25) is composed of a first liquid inlet (33), a second liquid inlet (34), a first liquid production port (35) and a second liquid production port (36), the seepage area (29) is composed of uniform distribution of round particles representing a pore-throat structure of the reservoir, and the diversion channel is arranged at the lower end of the seepage area (29) for smooth injection of fluid.
8. An experimental method of a microscopic visual simulation experiment device for carbon and hydrogen storage in a stratum is characterized in that the microscopic visual simulation experiment device for carbon and hydrogen storage in the stratum is adopted, and comprises the following steps:
s1: crude oil, formation water, methane gas, and carbon dioxide and hydrogen were each charged into an intermediate vessel, and the temperature of the intermediate vessel was adjusted to the temperature required for the experiment.
S2, mounting the microfluidic chip model on a clamping bin of a microfluidic chip model clamping system and aligning the microfluidic chip model with a fluid injection and extraction outlet.
And S3, vacuumizing the microfluidic chip model and the holding bin by using a vacuum pump.
S4, preprocessing the model, and respectively simulating fluid distribution states of different types of reservoirs
And S5, setting back pressure on the microfluidic chip model through a back pressure pump, injecting carbon dioxide/hydrogen at a pressure slightly higher than the set back pressure by using an injection pump, and simulating the carbon dioxide/hydrogen burying process.
S6, recording the pressure and the image in the carbon dioxide/hydrogen burying process by using a pressure sensor and a digital camera, and stopping injecting the carbon dioxide/hydrogen when the fluid distribution in the model is not changed any more.
S7, analyzing the migration rule, retention characteristics and trapping mechanism of carbon dioxide/hydrogen in the porous medium by using data and images recorded by the pressure sensor and the digital camera.
9. The experimental method of the microscopic visualization simulation experiment device for the formation carbon and hydrogen storage according to claim 8, wherein the calculation formula of the carbon dioxide/hydrogen storage efficiency is as follows:
wherein S is the carbon dioxide/hydrogen burying efficiency in units of; n is dioxygen in a certain permeability zoneThe number of carbon/hydrogen pixels is 1; n (N) Total (S) The unit is 1 for the total number of pixels in the region.
10. The experimental method of the microscopic visualization simulation experiment device for the formation carbon and hydrogen storage according to claim 8, wherein a plurality of intermediate containers are arranged in the S1, and the simulation of the distribution state of different types of reservoir fluids can be realized by controlling the sequence of the displacement fluid passing through the microfluidic chip model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211637996.8A CN116125034A (en) | 2022-12-16 | 2022-12-16 | Microscopic visualization simulation experiment device for carbon and hydrogen storage of stratum and experiment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211637996.8A CN116125034A (en) | 2022-12-16 | 2022-12-16 | Microscopic visualization simulation experiment device for carbon and hydrogen storage of stratum and experiment method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116125034A true CN116125034A (en) | 2023-05-16 |
Family
ID=86309242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211637996.8A Pending CN116125034A (en) | 2022-12-16 | 2022-12-16 | Microscopic visualization simulation experiment device for carbon and hydrogen storage of stratum and experiment method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116125034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879122A (en) * | 2023-05-31 | 2023-10-13 | 中国石油大学(北京) | Infinitely-extensible modularized visual seepage simulation device |
-
2022
- 2022-12-16 CN CN202211637996.8A patent/CN116125034A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879122A (en) * | 2023-05-31 | 2023-10-13 | 中国石油大学(北京) | Infinitely-extensible modularized visual seepage simulation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Aslannezhad et al. | A review of hydrogen/rock/brine interaction: Implications for Hydrogen Geo-storage | |
| Dai et al. | Geochemical characteristics of He and CO2 from the Ordos (cratonic) and Bohaibay (rift) basins in China | |
| CN109025985B (en) | Experimental simulation device based on multiple-limb hole technology exploitation hydrate | |
| CN106056459A (en) | Compacted oil source rock classification evaluation standard division method based on hydrocarbon expulsion efficiency | |
| Al-Shafi et al. | A review on underground gas storage systems: Natural gas, hydrogen and carbon sequestration | |
| CN116125034A (en) | Microscopic visualization simulation experiment device for carbon and hydrogen storage of stratum and experiment method thereof | |
| CN112901121B (en) | Method for exploiting natural gas hydrate | |
| Qiao et al. | CO2 storage capacity assessment of deep saline aquifers in the Subei Basin, East China | |
| CN108344837A (en) | There are overlying densification cap rock hydrate exploitation induced disaster experimental simulation research device and experimental method in a kind of seabed | |
| Raza et al. | Underground hydrogen storage prospects in the Kingdom of Saudi Arabia | |
| Al Rizeiqi et al. | Potential of underground hydrogen storage in Oman | |
| Delshad et al. | Simulations of Hydrogen Storage in Sedimentary Geologic Formations | |
| Luboń et al. | Numerical simulation of hydrogen storage in the Konary deep saline aquifer trap | |
| US20240060397A1 (en) | Apparatus for injecting carbon dioxide into underground, method for evaluating same, and method for producing same | |
| CN113863904A (en) | Gas sealing experiment device and method | |
| Wehner et al. | CO2 Huff-n-Puff: Initial Results from a Waterflood SSC Reservoir | |
| Lyu et al. | Enhancement of Coalbed Methane via Nitrogen Injection in a Coal Mining Area: A Laboratory and Field Study | |
| Guo | Experimental methods of shale permeability | |
| Katterbauer et al. | Magenta Hydrogen–An AI-Driven Hydrogen Production Associated with CO2 Plume Utilization for Geothermal Power Generation | |
| Assessment | SPE-215102-MS | |
| Katterbauer et al. | Hydrogen Storage Volume Assessment and Uncertainty Quantification Utilizing Random Forest Ensemble Learning | |
| CN111489627B (en) | System for simulating ocean cold spring development and implementation method thereof | |
| Underhill | Introduction to the AAPG thematic set on carbon capture, utilization, and storage | |
| Tinjum et al. | Environmental Life Cycle Assessment Spreadsheet tool for Deep Direct-Use Geothermal at the University of Illinois at Urbana-Champaign Campus | |
| Kuuskraa et al. | CO2 Storage Engineering: Real Solution to Real Problems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |