CN114594230B - Preparation device and preparation method of mixed wettability sandstone microscopic model - Google Patents
Preparation device and preparation method of mixed wettability sandstone microscopic model Download PDFInfo
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- CN114594230B CN114594230B CN202210164224.0A CN202210164224A CN114594230B CN 114594230 B CN114594230 B CN 114594230B CN 202210164224 A CN202210164224 A CN 202210164224A CN 114594230 B CN114594230 B CN 114594230B
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- 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
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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
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
Abstract
The application discloses a preparation device and a preparation method of a mixed wettability sandstone microscopic model, wherein the preparation device comprises the following steps: the fixing frame comprises a frame body, a plurality of light shielding plates and clamping plates, wherein the light shielding plates are sequentially arranged on the frame body at intervals from top to bottom, and the clamping plates are positioned below the light shielding plates; the clamping plates are used for fixing the sandstone microscopic model, the light-transmitting channels are respectively prefabricated on the light-shielding plates, the light-shielding areas which are sequentially increased or decreased from top to bottom are arranged in the light-transmitting channels, and the positions of the light-shielding areas of the two adjacent light-shielding plates are corresponding to each other, so that light rays emitted by the light source can sequentially pass through the light-transmitting channels and then irradiate on the sandstone microscopic model. The light source is arranged above the fixing frame, so that light rays emitted by the light source can irradiate the plurality of light shielding plates, and the micro model positioned on the bottom light shielding plate is irradiated through the light transmission channel on the light shielding plate, so that the micro model has the characteristic of mixing and wetting.
Description
Technical Field
The application relates to the field of micro-model preparation, in particular to a device and a method for preparing a mixed wettability sandstone micro-model.
Background
Sandstone is a source rock formed by depositing clastic rock with the clastic components of more than 50 percent, such as quartz, feldspar and the like, and carrying the clastic rock in a basin through weathering, denudation and transportation. The sandstone reservoir has pore structures which develop to different degrees, when the sandstone reservoir is under the influence of engineering disturbance such as mining or fracturing, fluid with high osmotic pressure and high hydraulic gradient can generate gas-water two-phase unsaturated flow in the pore structures under the action of pressure difference, and the wettability of the sandstone reservoir is an important factor for determining the gas-water two-phase unsaturated flow.
Specifically, sandstone reservoirs actually show mixed wettability mainly because sandstone reservoirs are generally composed of multiple components, different components show different affinities and hydrophobicity, quartz, feldspar, mica and clay show hydrophilicity, talcum, metal sulfide, pyrite and hydrocarbon organics show hydrophobicity, and the contents and distribution of different affinities and hydrophobic media have important influences on viscosity, dominant flow channels, residual saturation and the like of fluid. In addition, the unsaturated flow of the gas-water two phases in the sandstone pore structure has important theoretical research values for carbon dioxide sequestration, oil gas exploitation, geothermal energy development and the like. Thus, the flow behavior of the gas-water two phases in mixed wettability sandstone reservoirs has become a critical scientific issue that needs to be addressed urgently in stability analysis of large deep underground works.
The preparation of a micro-pore structure of a sandstone reservoir by using a polymer into a micro-model has become an important means for researching a rock micro-nano structure, and the prior art also utilizes the micro-model to characterize the geometric form of the micro-pore structure of the sandstone reservoir. However, the wettability of the microscopic model, especially the mixed wettability caused by the multiple components in the microscopic model, is negligible, and thus the microscopic model does not respond well to information of a real rock sandstone reservoir.
In addition, in view of the fact that the polymer material used to make the microstructure of the sandstone reservoir is generally hydrophobic, in order to provide the microstructure with a certain wettability, the conventional technology is mostly implemented by modifying the entire microstructure (for example, by integrally irradiating the microstructure with ultraviolet rays, etc.), although this mode simulates the wettability of the microstructure to some extent. However, accurate characterization has not been performed for complex mixed wetting characteristics in sandstone reservoirs. In other words, the wettability of the microscopic model as a whole is changed, so that the wettability of the microscopic model is equal throughout, and the characteristics of mixed wettability of the real sandstone reservoir cannot be simulated by the microscopic model.
It follows that there is a need for further improvements and enhancements in the art.
Disclosure of Invention
The invention provides a preparation device and a preparation method of a mixed wettability sandstone microscopic model, which aim to solve at least one of the technical problems.
The technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a device for preparing a mixed wettability sandstone microscopic model, the device comprising: the fixing frame comprises a frame body, a plurality of light shielding plates and clamping plates, wherein the light shielding plates are sequentially arranged on the frame body at intervals from top to bottom, and the clamping plates are positioned below the light shielding plates; the clamping plates are used for fixing the sandstone microscopic model, a plurality of light-transmitting channels are prefabricated on the light-shielding plates respectively, light-shielding areas which are sequentially increased or decreased from top to bottom are arranged in the light-transmitting channels, and the positions of the light-shielding areas of two adjacent light-shielding plates are corresponding to each other, so that light rays emitted by the light source can sequentially pass through the light-transmitting channels and then irradiate on the sandstone microscopic model.
As a preferred embodiment of the present invention, the preparation device further includes a laser emitter, the fixing frame further includes an adjusting component and a plurality of receivers respectively disposed on a plurality of light shielding plates, the plurality of light shielding plates are respectively provided with a plurality of light holes, and the plurality of receivers are disposed close to the plurality of light holes; the adjusting component is used for adjusting the pose of the light shielding plates so that signals sent by the laser transmitters can sequentially pass through the light holes and are received by the receivers.
As a preferred embodiment of the present invention, the adjustment assembly includes a lateral adjustment member for adjusting the positions of the plurality of light shielding plates in the horizontal direction and a longitudinal adjustment member for adjusting the heights of the plurality of light shielding plates on the frame body.
As a preferred embodiment of the present invention, the lateral adjustment member and the longitudinal adjustment member are each one, so as to achieve synchronous adjustment of the plurality of shade plates; or, the transverse adjusting piece and the longitudinal adjusting piece are multiple, so that asynchronous adjustment of the light shielding plates is realized.
As a preferred embodiment of the present invention, the preparation device further comprises a level gauge respectively disposed on the plurality of light-shielding plates, and distances between two adjacent light-shielding plates are equal, so as to reduce diffuse reflection of light when the level gauge detects that the plurality of light-shielding plates are all in a horizontal state.
In a second aspect, the present invention also provides a method for preparing a mixed wettability sandstone micro-model, the sandstone micro-model including a base and a cover that is matched with the base, the method including the steps of:
Placing the base/cover on a clamping plate;
the pose of the plurality of light shielding plates is adjusted through the adjusting component, so that the plurality of receivers can all receive signals sent by the laser transmitters;
turning on the light source, and enabling light rays emitted by the light source to sequentially pass through a plurality of light transmission channels of a plurality of light shielding plates to irradiate the substrate/the cover body;
and after the preset irradiation time is reached, sequentially taking out the plurality of light shielding plates from the frame body to obtain the matrix/cover body with the mixed wettability.
As a preferred embodiment of the invention, the method further comprises a matrix/cover preparation phase before placing the matrix/cover on the clamping plate:
selecting a sandstone sample according to experimental requirements, and acquiring porosity data of the sandstone sample;
simplifying the internal structure of the sandstone sample into a homogeneous structure, and constructing a substrate with the same porosity as the sandstone sample according to the acquired porosity data;
and etching the substrate to form a base body and a cover body with the same microstructure.
As a preferred embodiment of the invention, the method further comprises a mask preparation stage before placing the base/cover on the clamping plate:
Acquiring microcomponents of the sandstone sample, and dividing the microcomponents into a plurality of wettability grades according to the contact angle of each microcomponent;
manufacturing a plurality of first light shielding plates corresponding to the matrix according to the distribution positions of sandstone particles in a plurality of wettability grades;
and manufacturing a plurality of second light shielding plates corresponding to the cover body according to mirror image patterns of the distribution positions of the sandstone particles in the wettability grades.
In a preferred embodiment of the present invention, the step of taking out the plurality of light shielding plates from the frame after the predetermined irradiation time is reached, to obtain a base/cover having a mixed wettability, comprises:
adjusting the irradiation time of a light source according to the change curve of the contact angle of each microcomponent in the sandstone sample and the irradiation time;
and after the preset irradiation time is reached, sequentially taking out the plurality of first light shielding plates/the plurality of second light shielding plates from the frame body from top to bottom to obtain a matrix/a cover body with mixed wettability.
As a preferred embodiment of the present invention, the substrate and/or the cover are provided with a medium inlet and a medium outlet, respectively, and after obtaining the substrate/cover having the mixed wettability, the method further comprises:
Bonding the base body and the cover body to form a sandstone microscopic model with mixed wettability;
injecting a medium into the sandstone microscopic model through the medium inlet, and enabling the medium to flow out through the medium outlet.
Due to the adoption of the technical scheme, the beneficial effects of the invention at least comprise:
1. the invention discloses a preparation device of a mixed wettability sandstone microscopic model, wherein a light source is arranged above a fixing frame, so that light rays emitted by the light source can irradiate a plurality of light shielding plates, and the sandstone microscopic model on a clamping plate is irradiated through a light transmission channel on the light shielding plates. The fixing frame comprises a plurality of light shielding plates which are sequentially arranged at intervals from top to bottom, the plurality of light shielding plates are provided with different light shielding areas, on one hand, the arrangement mode enables light rays emitted by a light source to finally irradiate different positions in the sandstone microscopic model through flexible taking and placing among the plurality of light shielding plates, so that heterogeneous modification treatment on the internal pore structure of the sandstone microscopic model is realized, the sandstone microscopic model has the characteristic of mixed wetting, the real sandstone reservoir environment is accurately simulated, the accuracy of an experimental process based on the mixed wetting sandstone microscopic model is improved, and experimental errors are reduced; on the other hand, the plurality of light baffles are arranged at intervals, so that a user can conveniently take and put the plurality of light baffles respectively, friction collision possibly occurring among the plurality of light baffles during taking and putting is effectively reduced, and the service life of the light baffles is prolonged; on the other hand, the interval that exists between a plurality of light baffles can be convenient for the user to carry out nimble regulation to the pose of a plurality of light baffles to make whole equipment can adapt to more extensive laboratory scene and simulate more types of illumination condition, promote equipment's application scope.
2. As a preferred embodiment of the application, the pose of the light shielding plates is detected through the arranged laser transmitters and receivers, the plurality of receivers are respectively arranged on each layer of the light shielding plates to respectively detect the pose of each light shielding plate, so that each light shielding plate can be kept at a specific position, the light rays emitted by the light source can be irradiated on the sandstone microscopic model, and the utilization rate of the equipment on the light rays is improved. In addition, the setting of adjusting part can be used for adjusting the concrete position appearance (such as height, levelness etc.) of each light screen to ensure that can maintain in the coplanar position between each light screen and the clamp plate, and then do benefit to the even irradiation of light source to sandstone microscopic model. Specifically, the laser emitter, the receiver, the adjusting component and the light holes formed in the light baffles are matched with each other, when the adjusting component adjusts each light baffle to a specified position, signals sent by the laser emitter can be received by the receiver after passing through the light holes, so that the preparation device can conduct non-homogenization modification treatment on the sandstone microscopic model.
3. As a preferred embodiment of the application, the transverse adjusting piece and the longitudinal adjusting piece in the adjusting assembly are arranged, so that a user can accurately and comprehensively adjust parameters such as the height, the levelness and the like of each light screen according to experimental requirements, and the sandstone microscopic model obtained through the device has more real mixed wettability, and the accuracy of a subsequent experimental process is improved. Moreover, the preparation device can adapt to different laboratory environments by the aid of the arrangement mode, different requirements of users on sandstone microscopic models are met, and user experience is facilitated.
Further, the number of the transverse adjusting members and the longitudinal adjusting members can be one or a plurality of the transverse adjusting members and the longitudinal adjusting members, so that the preparation device can respectively realize synchronous adjustment or asynchronous adjustment of the light shielding plate. The synchronous adjustment mode is convenient for a user to adjust a plurality of light baffles at the same time, so that the adjustment efficiency of the pose is improved; the asynchronous adjustment mode can facilitate the targeted and refined adjustment of the light baffles at different positions by a user, so that each light baffle has a wider adjustment range and a more accurate position, the light irradiation efficiency and the light utilization rate are improved, and the sandstone microscopic model closer to the real sandstone reservoir environment is simulated.
4. As a preferred embodiment of the application, a plurality of light shielding plates are provided with a level meter, and the distances between two adjacent light shielding plates are equal. Preferably, when the light source irradiates vertically downwards, the plurality of light baffles are in a horizontal state, so that the scattering of ultraviolet rays can be reduced as much as possible, the level meter is used for detecting whether the plurality of light baffles are in a horizontal state, and the two light baffles are arranged to be equal in distance, so that the scattering generated when the ultraviolet rays pass through each light baffle is substantially consistent, and the mixed wettability of the obtained sandstone microscopic model is more in accordance with the requirements of users.
5. The application also discloses a preparation method of the mixed wettability sandstone micro-model, wherein the sandstone micro-model is divided into a matrix and a cover body matched with the matrix, and the split setting mode is convenient for light to irradiate the matrix and the cover body respectively, so that the wettability of the whole sandstone micro-model is easier to change, and the finally prepared sandstone micro-model has more ideal mixed wettability. In addition, the matrix/cover body is placed on the clamping plate, so that light rays emitted by the light source can irradiate on the matrix/cover body through the light transmission channel after any one of the light shielding plates is extracted, and the sandstone microscopic model can be enabled to show the characteristic of conforming to the preset mixed wetting. Furthermore, the pose of the plurality of light baffles is adjusted through the adjusting component, so that the plurality of receivers can receive signals sent by the laser transmitters, each light baffle is guaranteed to be in an aligned state, the illumination path of the light source can sequentially pass through the plurality of light baffles, and light rays can be guaranteed to be stably irradiated on the base body/the cover body; finally, after the preset irradiation time is reached, the light source irradiates the sandstone micro-model through the light transmission channels with different light shielding areas after the light shielding plates are respectively extracted because the light shielding areas of the light shielding plates are different, so that each part of the sandstone micro-model has different irradiation time, and further, each part of the sandstone micro-model shows different wettability, namely, the sandstone micro-model shows the characteristic of mixed wetting.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the application is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic structural diagram of a device for preparing a mixed wettability sandstone microscopic model according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a sandstone micro-model according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first light shielding plate according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a second light shielding plate according to an embodiment of the present application;
FIG. 5 is a flowchart of a method for preparing a mixed wettability sandstone microscopic model according to an embodiment of the present application;
FIG. 6 is a flow chart of a substrate/lid preparation phase provided by an embodiment of the present application;
FIG. 7 is a flowchart of a mask preparation stage according to an embodiment of the present application;
FIG. 8 is a flowchart of another method for preparing a hybrid wettability sandstone micro-model according to an embodiment of the present application;
FIG. 9 is a graph schematically showing the wettability of a sandstone micro-model according to the embodiment of the present application according to the irradiation time of ultraviolet rays;
fig. 10 is a schematic diagram of a mask extraction sequence according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a modified water intrusion of a sandstone micro-model according to an embodiment of the present application.
The device comprises a fixing frame 1, a frame body 11, a shading plate 12, a light transmission channel 121, a shading area 122, a clamping plate 13, a sandstone microscopic model 2, a light source 3, a laser emitter 4, an adjusting component 5, a transverse adjusting component 51, a longitudinal adjusting component 52, a receiver 6 and a level meter 7.
Detailed Description
In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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 devices 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.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1 to 3, the present application provides an apparatus for preparing a mixed wettability sandstone microscopic model, the apparatus comprising: the fixing frame 1 and the light source 3 positioned above the fixing frame 1, wherein the fixing frame 1 comprises a frame body 11, a plurality of light shielding plates 12 arranged on the frame body 11 from top to bottom at intervals, and a clamping plate 13 positioned below the light shielding plates 12. The clamping plate 13 is used for fixing the sandstone micro-model 2, and when the sandstone micro-model 2 is fixed by the clamping plate 13, the clamping plate 13 can be provided with a structure with clamping members (not shown in the figure), and the clamping members can be, for example, buckles, sliding blocks, elastic sheets and the like; the clamping plate 13 may also be provided in a structure having clamping grooves (not shown in the drawings) to clamp and fix the sandstone micro-model 2 by the cooperation between the clamping grooves; the fastening connection between the sandstone micro-model 2 and the clamping plate 13 can also be realized by arranging the bonding part on the clamping plate 13, and the application is not limited to the specific structure of the clamping plate 13, the specific fixing mode of the sandstone micro-model and the like. In addition, the light-shielding plates 12 in the present application may be prefabricated with a plurality of light-transmitting channels 121, and the light-shielding areas 122 sequentially increasing or decreasing from top to bottom are disposed in the light-transmitting channels 121, and the positions of the light-shielding areas 122 of two adjacent light-shielding plates 12 are corresponding, so that the light emitted by the light source can sequentially pass through the light-transmitting channels 121 and then irradiate the sandstone micro-model 2.
First, it should be noted that, since the sandstone micro-model 2 can be generally made of a polymer. Therefore, the light source 3 may be an ultraviolet light source, and the ultraviolet light can change the material of the polymer, so as to change the wettability of the sandstone micro-model 2, that is, the ultraviolet light can modify the sandstone micro-model 2. The preparation device utilizes the characteristic that the ultraviolet irradiation time is longer, and the polymer sandstone microscopic model 2 is more hydrophilic, and the device can be used for reservoir rocks with approximate homogeneous pore structures such as coarse sandstone and limestone, and also can be used for reservoir rocks with heterogeneous pore structures such as limestone and dolomite.
Next, the internal structure of the light shielding plate 12 provided by the present application was a simulation of the microscopic homogeneous void structure in reservoir rock. In order to facilitate the related research of scientific researchers, both the light shielding plate structure and the modified sandstone microscopic model 2 are constructed into a homogeneous structure. For example, the porosity of the sandstone micro-model 2 may be constructed to be the same as the porosity of the rock sample to be studied, and simplified to be a homogeneous model; the structure of the light shielding plates 12 can construct the light shielding plates 12 with different wettability grades after the content of each component in the rock sample is determined, and the internal lines among the light shielding plates 12 are the same. For a specific manufacturing process and method of the sandstone micro-model 2 and the mask 12, reference will be made to the following description of the present embodiment, and detailed description thereof will be omitted.
Further, as shown in fig. 3, after determining the specific structure of the inside of the light-shielding plates 12, in order to enable each light-shielding plate 12 to filter the incident light of different luminous fluxes, it is also necessary to provide each light-shielding plate 12 with a light-shielding region 122 (black region in fig. 3) of different size. In a preferred embodiment, the size of the light shielding area 122 in each light shielding plate 12 may be sequentially reduced from the uppermost light shielding plate to the lowermost light shielding plate, so that the area of the light transmission channel 121 in each light shielding plate 12 sequentially increases from top to bottom. Of course, it will be understood by those skilled in the art that in another preferred embodiment, the size of the light shielding area 122 in each light shielding plate 12 may also be sequentially increased from the uppermost light shielding plate to the lowermost light shielding plate, so that the area of the light transmission channel 121 in each light shielding plate 12 is sequentially decreased from top to bottom. In addition, even the areas of the light-transmitting channels 121 and the light-shielding regions 122 in the respective light-shielding plates 12 may be randomly distributed, and the specific arrangement manner of the light-transmitting channels 121 and the light-shielding regions 122 between the respective light-shielding plates 12 is not limited in this embodiment.
It should be noted that the sandstone micro-model 2 in this embodiment may include a base (not labeled in the figure) and a cover (not labeled in the figure) that is matched with the base, and this split arrangement is convenient for the light to irradiate the base and the cover respectively, so that the wettability of the sandstone micro-model 2 as a whole is easier to change. After the ultraviolet irradiation of the matrix and the cover body is finished respectively, the matrix and the cover body are bonded into a complete sandstone micro-model 2, so that the finally prepared sandstone micro-model 2 has more ideal mixed wettability.
In the process of respectively irradiating the substrate and the cover body, as the cover body is covered on the substrate, the pore structure of the substrate and the pore structure of the cover body are matched to form a complete pore structure of the sandstone microscopic model 2. Thus, the pore structure of the base and the pore structure of the cover are substantially mirror images. Accordingly, referring to fig. 3 and 4, the type of the light shielding plate 12 in the present application may be divided into a plurality of first light shielding plates (not labeled in the drawing) corresponding to the base body and a plurality of second light shielding plates (not labeled in the drawing) corresponding to the cover body according to the object of action, and the light transmission channels 121 and the light shielding areas 122 inside the first light shielding plates and the second light shielding plates are also in mirror image distribution.
For convenience of description, in this embodiment, the description of the related content is made by taking the case that the sandstone micro-model 2 includes a base body and a cover body, and the number of the first light-shielding plates and the second light-shielding plates is set to 3:
specifically, in one embodiment, as shown in fig. 3, the preparation device includes three first light shielding plates. In fig. 3, A1 is a light shielding plate (first light shielding plate) disposed at the uppermost layer of the preparation apparatus, B1 is a light shielding plate (second light shielding plate) disposed in the middle of the preparation apparatus, and C1 is a light shielding plate (third light shielding plate) disposed at the lowermost layer of the preparation apparatus. It can be found that, in this embodiment, the light shielding regions 122 of the first light shielding plates are sequentially reduced from top to bottom, and the positions of the light shielding regions 122 of the two adjacent light shielding plates correspond to each other, that is, the positions corresponding to the light shielding regions 122 on the B1 are also the light shielding regions 122 in the A1, and the positions corresponding to the light shielding regions 122 on the C1 are also the light shielding regions 122 in the A1 and the B1.
Correspondingly, as shown in fig. 4, the preparation device may further comprise three second light shielding plates. In fig. 4, A2 is a light shielding plate (first light shielding plate) disposed at the uppermost layer of the preparation apparatus, B2 is a light shielding plate (second light shielding plate) disposed in the middle of the preparation apparatus, and C2 is a light shielding plate (third light shielding plate) disposed at the lowermost layer of the preparation apparatus. It can be found that, in this embodiment, the light shielding regions 122 of the second light shielding plates also decrease from top to bottom, and the positions of the light shielding regions 122 of the two adjacent light shielding plates correspond to each other, that is, the positions corresponding to the light shielding regions 122 on the B2 are also the light shielding regions 122 in the A2, and the positions corresponding to the light shielding regions 122 on the C2 are also the light shielding regions 122 in the A2 and the B2. By comparing the specific structures of the light shielding plates 12 shown in fig. 3 and 4, the light shielding regions of the first light shielding plates and the light shielding regions of the second light shielding plates are mirror-image distribution.
Further, it should be understood that, although the above embodiment sets the number of the light shielding plates to three, a person skilled in the art may select the specific number of the light shielding plates according to actual needs. The specific shape of each light shielding plate 12 is not limited in this embodiment, and for example, the light shielding plates may be provided in a symmetrical structure such as a circular structure, a square structure, or a diamond structure, or may be provided in an irregular structure.
In a specific operation process of the manufacturing apparatus, in order to make the sandstone micro-model 2 have the characteristic of mixed wetting, the light shielding plates 12 may be sequentially extracted from top to bottom or from bottom to top, so that ultraviolet rays irradiate the sandstone micro-model 2 after passing through the light shielding plates 12 having different light shielding areas 122, so that different positions of the sandstone micro-model 2 are irradiated for different times, and thus, the positions of the sandstone micro-model 2 show different wettabilities, to manufacture the sandstone micro-model 2 having the mixed wetting property.
According to the preparation device for the mixed wettability sandstone microscopic model, the light source 3 is arranged above the fixing frame 1, so that light emitted by the light source 3 can irradiate the plurality of light shielding plates 12, and the sandstone microscopic model 2 positioned on the bottom light shielding plate 12 is irradiated through the light transmission channel 121 on the light shielding plates 12. The fixing frame 1 comprises a plurality of light shielding plates 12 which are sequentially arranged at intervals from top to bottom, and the light shielding plates 12 are provided with different light shielding areas 122, on one hand, the arrangement mode enables light rays emitted by the light source 3 to finally irradiate different positions in the sandstone microscopic model 2 through flexible taking and placing among the light shielding plates 12, so that heterogeneous modification treatment on an internal pore structure of the sandstone microscopic model 2 is realized, the sandstone microscopic model 2 has the characteristic of mixed wetting, the real sandstone reservoir environment is accurately simulated, the accuracy of an experimental process based on the mixed wetting sandstone microscopic model 2 is improved, and experimental errors are reduced; on the other hand, the plurality of light baffles are arranged at intervals, so that a user can conveniently take and put the plurality of light baffles respectively, friction collision possibly occurring between the plurality of light baffles 12 during taking and putting is effectively reduced, and the service life of the light baffles 12 is prolonged; in yet another aspect, the space between the plurality of light baffles 12 can facilitate the user to flexibly adjust the pose of the plurality of light baffles 12, so that the whole device can adapt to a wider laboratory scene and simulate more types of illumination situations, and the application range of the device is improved.
In a specific example, with continued reference to fig. 1, the preparation device may further include a laser emitter 4, the fixing frame 1 may further include an adjusting assembly 5 and a plurality of receivers 6 respectively disposed on a plurality of light shielding plates 12, the plurality of light shielding plates 12 are respectively provided with a plurality of light holes (not labeled in the drawing), and the plurality of receivers 6 are disposed near the plurality of light holes; the adjusting component 5 is used for adjusting the pose of the plurality of light shielding plates 12, so that the signal sent by the laser transmitter 4 can sequentially pass through the plurality of light holes and be received by the plurality of receivers 6.
Specifically, since the light-shielding plates 12 and the sandstone microscopic model 2 have the same pore grains, when the light-shielding plates are irradiated, the light-transmitting holes, the receivers 6 and the laser transmitters 4 are arranged to correct the relative positions of the light-shielding plates 12, the laser passes through the light-transmitting holes, if the signal receivers 6 all receive the laser signals, the light-shielding plates 12 are flush, the ultraviolet irradiation range can cover the light-shielding plates 12, if one or some signal receivers 6 can not receive the laser signals, the positions of the light-shielding plates 12 are not in an aligned state, and the adjustment of the adjustment assembly 5 is needed. It should be noted that, the number of the laser transmitters 4 and the number of the receivers 6 and the light holes on each light shielding plate 12 are not limited, but the laser transmitters 4 are in one-to-one correspondence with the receivers 6 and the light holes, so that the light emitted by the laser transmitters 4 can pass through each light hole and be received by each receiver 6 in the state that each light shielding plate 12 is respectively aligned. Furthermore, the clamping plate 13 may preferably be provided with a receiver 6 for detecting the positional relationship of the plurality of light shielding plates and the clamping plate 13, thereby adjusting the relative positional relationship between the plurality of light shielding plates 12 and the clamping plate 13.
According to the application, the pose of the light shielding plates 12 is detected through the arranged laser transmitters 4 and receivers 6, the plurality of receivers 6 are arranged on each layer of light shielding plates 12, so that the pose of each light shielding plate 12 is detected, each light shielding plate 12 can be ensured to be kept at a specific position, the light emitted by the light source 3 can be irradiated on the sandstone microscopic model, and the utilization rate of the equipment on the light is improved. In addition, the setting of the adjusting component 5 can be used for adjusting the specific pose (such as height, levelness, etc.) of each light shielding plate 12, so as to ensure that each light shielding plate 12 and the clamping plate 13 can be maintained at the same position, and further facilitate the uniform irradiation of the light source 3 on the sandstone microscopic model. Specifically, the laser emitter 4, the receiver 6, the adjusting component 5 and the light holes formed in the light shielding plates 12 are matched with each other, when the adjusting component 5 adjusts each light shielding plate 12 to a specified position, signals sent by the laser emitter 4 can be received by the receiver 6 after passing through the light holes, so that the preparation device can conduct heterogeneous modification treatment on the sandstone microscopic model.
Further, the adjusting assembly 5 may include a lateral adjusting member 51 and a longitudinal adjusting member 52, the lateral adjusting member 51 is used for adjusting an included angle between the plurality of light-shielding plates 12 and a horizontal plane, and the longitudinal adjusting member 52 is used for adjusting heights of the plurality of light-shielding plates 12 on the frame 11. According to the application, through the arrangement of the transverse adjusting piece 51 and the longitudinal adjusting piece 52 in the adjusting assembly 5, a user can accurately and comprehensively adjust parameters such as the height, the levelness and the like of each light screen 12 according to experimental requirements, so that the sandstone microscopic model 2 obtained through the device has more real mixed wettability, and the accuracy of a subsequent experimental process is improved. Moreover, the preparation device can adapt to different laboratory environments by the aid of the arrangement mode, different requirements of users on the sandstone microscopic model 2 are met, and user experience is facilitated.
Also, the present application may also provide one lateral adjustment member 51 and one longitudinal adjustment member 52 to achieve synchronous adjustment of a plurality of the shade panels 12. The synchronous adjustment mode is convenient for a user to adjust the plurality of light baffles 12 at the same time, and the adjustment efficiency of the pose is improved.
Or, the plurality of the lateral adjusting members 51 and the plurality of the longitudinal adjusting members 52 are arranged to realize asynchronous adjustment of the plurality of the light baffles 12, and the asynchronous adjustment mode can facilitate the targeted and refined adjustment of the light baffles 12 at different positions by a user, so that each light baffle 12 has a wider adjustment range and a more accurate position, the irradiation efficiency of light rays and the utilization rate of the light rays are improved, and the sandstone microscopic model 2 closer to the real sandstone reservoir environment is simulated.
As a preferred embodiment of the present application, the preparation device may further include a level gauge 7 respectively disposed on the plurality of light-shielding plates 12, and distances between two adjacent light-shielding plates 12 are equal to reduce diffuse reflection of light when the level gauge 7 detects that the plurality of light-shielding plates 12 are all in a horizontal state.
Optionally, when the light source 3 irradiates vertically downwards, the plurality of light baffles 12 are all in a horizontal state, so that the scattering of ultraviolet rays can be reduced as much as possible, the level meter 7 is used for detecting whether the plurality of light baffles 12 are in a horizontal state, and the two light baffles 12 are set to be equal in distance, so that the scattering generated when the ultraviolet rays pass through one light baffle 12 is substantially consistent, and the mixing wettability of the obtained sandstone microscopic model 2 is more consistent with the requirements of users. Wherein the number of levels 7 may be provided with one or more for each light screen 12, for example when the light screen 12 is square, a plurality of levels 7 may be mounted at opposite corners of the light screen 12, i.e. two levels 7 are mounted per light screen 12.
Referring to fig. 5, the application also discloses a preparation method of the mixed wettability sandstone microscopic model, and the method can be applied to the preparation device disclosed in the above description. In particular, the method may comprise the steps of:
s11, placing the base body/cover body on the clamping plate.
It should be noted that, when the base/cover is placed on the clamping plate 13, the present application is not limited to a specific placement position of the base/cover, i.e. the base/cover is placed in the middle of the clamping plate 13 or on both sides of the clamping plate 13, so that the base/cover can receive the light rays sequentially passing through the light shielding plates 12 on the upper layer thereof.
S12, adjusting the pose of the plurality of light shielding plates through the adjusting component so that the plurality of receivers can all receive signals sent by the laser transmitters 4.
Specifically, since the light-shielding plates 12 and the sandstone microscopic model 2 have the same pore grains, when the light-shielding plates 12 and the sandstone microscopic model 2 are irradiated, the one-to-one correspondence of the grains on the light-shielding plates 12 is fully ensured, if the signal receivers all receive laser signals, the light-shielding plates 12 are flush and the ultraviolet irradiation range can cover the light-shielding plates 12, if one or some signal receivers can not receive the laser signals, the positions of the light-shielding plates 12 are not in an aligned state, and the adjustment is performed through the adjusting component 5 until the signal receivers can receive the signals sent by the laser transmitters 4.
S13, turning on the light source, and enabling light rays emitted by the light source to sequentially pass through the light transmission channels of the light shielding plates to irradiate the substrate/the cover body.
This step S13 is used to ensure that the light emitted by the light source 3 can irradiate the substrate/cover through the light-transmitting channel 121, and since the light-shielding plate 12 has different light-shielding regions and the plurality of light-shielding regions 122 have different sizes and corresponding positions, the substrate/cover is always irradiated with the light having the same shape as the light-transmitting channel 121 with the largest light-shielding region 122.
S14, after the preset irradiation time is reached, the plurality of light shielding plates are respectively taken out from the frame body, and the matrix/cover body with the mixed wettability is obtained.
Specifically, it can be seen from the above that the substrate/cover having the mixed wettability is achieved, and each irradiation of the light source 3 passes through the light shielding plate 12 having the different light shielding regions 122 and irradiates on different positions of the substrate/cover. Therefore, it is necessary to sequentially withdraw the shade 12 after each irradiation and then perform the next irradiation, and after exposing the sandstone micro-model 2 to different illumination times and illumination positions, it is possible to achieve a mixed wettability in accordance with the preset.
Further, as shown in fig. 6, the preparation method provided by the present application may further include a preparation stage of the substrate/cover before the substrate/cover is placed on the clamping plate 13:
S21, selecting a sandstone sample according to experimental requirements, and acquiring porosity data of the sandstone sample.
In addition to obtaining the porosity of the sandstone sample by adopting a pressure pump experiment mode, the porosity data of the sandstone sample can be collected by using destructive detection methods such as a density method, an adsorption metallographic experiment method and a nondestructive detection method, wherein the nondestructive detection method comprises an acoustic emission detection technology, an industrial detection technology, a microwave detection technology, an ultrasonic detection technology and the like.
S22, simplifying the internal structure of the sandstone sample into a homogeneous structure, and constructing a substrate with the same porosity as the sandstone sample according to the acquired porosity data.
The purpose of simplifying the internal structure of the sandstone sample into a homogeneous structure is to facilitate laboratory research on the sandstone sample by scientific researchers, and reduce experimental difficulty. In addition, after the structure is simplified into a homogeneous structure, the application can manufacture and process the substrate with the same porosity as the sandstone sample by selecting materials such as PDMS (Polydimethylsiloxane).
S23, etching the substrate to form a substrate and a cover body with the same microstructure.
When the substrate is etched, the substrate and the cover body etched with the microstructure can be manufactured by adopting the preparation method of the microfluidic chip, and the method has the advantages of low cost, high production efficiency and the like. The related preparation technology of the microfluidic chip is already known to those skilled in the art, and will not be described in detail.
In addition, as shown in fig. 7, the preparation method provided by the present application may further include a preparation stage of the light shielding plate before the substrate/cover is placed on the clamping plate:
s31, acquiring microcomponents of a sandstone sample, and dividing the microcomponents into a plurality of wettability grades according to the contact angle of each microcomponent.
S32, manufacturing a plurality of first light shielding plates corresponding to the matrix according to the distribution positions of the sandstone particles in the wettability grades.
S33, manufacturing a plurality of second light shielding plates corresponding to the cover body according to mirror image patterns of sand rock particle distribution positions in a plurality of wettability grades.
It should be noted that in the above step S31, for example, the microscopic components and the contents thereof in the sandstone sample may be obtained by the X-ray diffraction technique to obtain the data shown in the following table 1. Further, each micro component in the sandstone sample may be further classified into a plurality of wettability grades according to the correspondence relationship of contact angle and corresponding component as shown in table 2 below, and the content at each grade may be found. This example is for ease of illustration and is described with respect to only the data shown in tables 1 and 2. At this time, according to the data in the table, the present application can classify the micro-components in the sandstone sample according to four wettability grades. In addition, the application can write a random distribution function by MATLAB software, and randomly distribute the four wettability grade particles.
In addition, it should be further understood that the pattern of the second light-shielding plate is arranged in mirror image with the first light-shielding plate in the present embodiment, and in actual operation, the pattern of the second light-shielding plate and the pattern of the first light-shielding plate may be arranged in any pattern on the basis of the same content at each wetting grade.
Table 1 sandstone sample microcomponent table
Table 2 sandstone sample wettability grade classification table
| Contact angle range | Content of |
| 60～80° | 68.1％ |
| 80～100° | 16.9％ |
| 100～120° | 9.2％ |
| 120～130° | 5.8％ |
It should also be noted that, although the mask preparation stage and the base/cover preparation stage in the present application are both provided before the above step S11, the present application is not limited as to the specific order of implementation between the mask preparation stage and the base/cover preparation stage. In other words, the mask preparation stage may be either before or after the substrate/cap preparation stage prior to step S11.
As a preferred embodiment of the present application, referring to fig. 8 and 9, the step S14 may further include the steps of:
s141, adjusting the irradiation time of the light source according to the change curve of the contact angle of each microcomponent in the sandstone sample and the irradiation time.
Fig. 9 is a graph of the relationship between the contact angle of a sandstone microscopic model and the irradiation time of ultraviolet rays. Since the difference of the contact angle can cause the wettability of the sandstone microscopic model 2 to change, the application changes the hydrophilicity and hydrophobicity of the sandstone microscopic model 2 by adjusting the contact angle of the sandstone microscopic model 2. The contact angle change can be realized by ultraviolet irradiation, so the core principle of the application is that the sandstone microscopic model 2 has different mixed wettability by changing the ultraviolet irradiation time and the irradiation position. For example, when the irradiation time of the sandstone micro-model 2 with ultraviolet rays is 1h, the sandstone micro-model 2 is shifted from the hydrophobicity to the neutrality; when the sandstone microscopic model 2 is irradiated by ultraviolet rays for 2.5 hours, the sandstone microscopic model 2 is changed from neutral to hydrophilic.
S142, after reaching the preset irradiation time, sequentially taking out the first light shielding plates/the second light shielding plates from the frame body from top to bottom to obtain the matrix/the cover body with the mixed wettability.
In this step, referring to fig. 10, in order to provide the matrix/cover with the characteristics of mixed wetting, the mask 12 may be sequentially withdrawn from top to bottom, so that the ultraviolet rays irradiate the matrix/cover after passing through the mask 12 having different mask areas 122, so that different positions of the matrix/cover are irradiated for different times, and thus, the respective positions of the matrix/cover show different wettabilities, to prepare the sandstone micro-model 2 with mixed wetting. Of course, the light shielding plates 12 may be sequentially extracted from bottom to top or randomly extracted, in addition to the above-described manner of sequentially extracting the light shielding plates 12 from top to bottom, and the extraction manner of the light shielding plates 12 is not limited in the present application.
In another specific example, with continued reference to fig. 5, the substrate and/or the cover are respectively provided with a medium inlet (not shown in the figure) and a medium outlet (not shown in the figure), and after step S14, the method may further include the steps of:
And S15, bonding the matrix and the cover body to form the sandstone microscopic model with mixed wettability.
S16, injecting a medium into the sandstone microscopic model through the medium inlet, and enabling the medium to flow out through the medium outlet.
In step S16, the medium injected into the sandstone micro-model 2 may be water, gas, oil, etc., through which the scientific researchers can simulate various geological activities in the environment of the sandstone reservoir more closely to the actual sandstone reservoir through observation and experiment of the sandstone micro-model 2. Specifically, for example, when water is injected into the sandstone micro-model 2, and after ultraviolet irradiation treatment, a bound water phase diagram after water intrusion inside the sandstone micro-model 2 is shown in fig. 11.
The application can be realized by adopting or referring to the prior art at the places which are not described in the application.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (9)
1. A device for preparing a mixed wettability sandstone microscopic model, the device comprising: the fixing frame comprises a frame body, a plurality of light shielding plates and clamping plates, wherein the light shielding plates are sequentially arranged on the frame body at intervals from top to bottom, and the clamping plates are positioned below the light shielding plates;
the clamping plates are used for fixing the sandstone microscopic model, the light shielding plates are respectively prefabricated with a plurality of light transmission channels, the inside of each light transmission channel is provided with a light shielding area which is sequentially increased or decreased from top to bottom, and the positions of the light shielding areas of two adjacent light shielding plates are corresponding to each other, so that light rays emitted by the light source can sequentially pass through the light transmission channels and then irradiate on the sandstone microscopic model;
the preparation device further comprises a laser emitter, the fixing frame further comprises an adjusting component and a plurality of receivers respectively arranged on the light shielding plates, the light shielding plates are respectively provided with a plurality of light holes, and the receivers are arranged close to the light holes;
the adjusting component is used for adjusting the pose of the light shielding plates so that signals sent by the laser transmitters can sequentially pass through the light holes and are received by the receivers.
2. The apparatus for preparing a mixed wettability sandstone micro-model according to claim 1, wherein the adjusting assembly comprises a transverse adjusting member for adjusting the positions of the plurality of light-shielding plates in the horizontal direction and a longitudinal adjusting member for adjusting the heights of the plurality of light-shielding plates on the frame.
3. The apparatus for preparing a mixed wettability sandstone micro-model according to claim 2, wherein the lateral adjusting member and the longitudinal adjusting member are one, so as to realize synchronous adjustment of a plurality of the light shielding plates;
or, the transverse adjusting piece and the longitudinal adjusting piece are multiple, so that asynchronous adjustment of the light shielding plates is realized.
4. The apparatus for preparing a mixed wettability sandstone micro-model according to claim 1, further comprising a level gauge respectively arranged on a plurality of the light-shielding plates, wherein the distances between two adjacent light-shielding plates are equal, so as to reduce diffuse reflection of light when the level gauge detects that the light-shielding plates are in a horizontal state.
5. A method for preparing a hybrid wettability sandstone micro-model, characterized in that the sandstone micro-model comprises a matrix and a cover body matched with the matrix, the method comprises the following steps:
Placing said substrate/said cover on a clamping plate in a device for preparing a mixed wettability sandstone micro-model according to any one of claims 1-4;
the pose of the plurality of light shielding plates is adjusted through the adjusting component, so that the plurality of receivers can all receive signals sent by the laser transmitters;
turning on the light source, and enabling light rays emitted by the light source to sequentially pass through a plurality of light transmission channels of a plurality of light shielding plates to irradiate the substrate/the cover body;
and after the preset irradiation time is reached, sequentially taking out the plurality of light shielding plates from the frame body to obtain the matrix/cover body with the mixed wettability.
6. The method of preparing a hybrid wettability sandstone micro-model according to claim 5, wherein before placing the matrix/cover on the clamping plate, the method further comprises a matrix/cover preparation stage:
selecting a sandstone sample according to experimental requirements, and acquiring porosity data of the sandstone sample;
simplifying the internal structure of the sandstone sample into a homogeneous structure, and constructing a substrate with the same porosity as the sandstone sample according to the acquired porosity data;
and etching the substrate to form a base body and a cover body with the same microstructure.
7. The method of preparing a hybrid wettability sandstone micro-model according to claim 6, wherein before placing the base/cover on the clamping plate, the method further comprises a mask preparation stage:
acquiring microcomponents of the sandstone sample, and dividing the microcomponents into a plurality of wettability grades according to the contact angle of each microcomponent;
manufacturing a plurality of first light shielding plates corresponding to the matrix according to the distribution positions of sandstone particles in a plurality of wettability grades;
and manufacturing a plurality of second light shielding plates corresponding to the cover body according to mirror image patterns of the distribution positions of the sandstone particles in the wettability grades.
8. The method of preparing a hybrid wettability sandstone micro-model according to claim 7, wherein the step of taking out the plurality of light-shielding plates from the frame after the predetermined irradiation time is reached, respectively, to obtain a matrix/cover having hybrid wettability comprises:
adjusting the irradiation time of a light source according to the change curve of the contact angle of each microcomponent in the sandstone sample and the irradiation time;
and after the preset irradiation time is reached, sequentially taking out the plurality of first light shielding plates/the plurality of second light shielding plates from the frame body from top to bottom to obtain a matrix/a cover body with mixed wettability.
9. The method for preparing a mixed wettability sandstone microscopic model according to claim 8, wherein the substrate and/or the cover body are/is provided with a medium inlet and a medium outlet, respectively, and after obtaining the substrate/cover body with mixed wettability, the method further comprises:
bonding the base body and the cover body to form a sandstone microscopic model with mixed wettability;
injecting a medium into the sandstone microscopic model through the medium inlet, and enabling the medium to flow out through the medium outlet.
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| KR20040077540A (en) * | 2003-02-28 | 2004-09-04 | 다이니폰 인사츠 가부시키가이샤 | Wettability pattern forming coating solution and method for manufacturing pattern forming body |
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| JP2015106670A (en) * | 2013-12-02 | 2015-06-08 | パナソニックＩｐマネジメント株式会社 | Method of forming microstructure and manufacturing device of microstructure |
| CN107939387A (en) * | 2017-11-14 | 2018-04-20 | 中国石油大学(北京) | A kind of microcosmic rock network model production method |
| CN112161907A (en) * | 2020-09-23 | 2021-01-01 | 武汉大学 | Surface wettability variable micro-pore model and manufacturing and using method thereof |
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| KR20040077540A (en) * | 2003-02-28 | 2004-09-04 | 다이니폰 인사츠 가부시키가이샤 | Wettability pattern forming coating solution and method for manufacturing pattern forming body |
| CN101359172A (en) * | 2007-07-31 | 2009-02-04 | Icf科技有限公司 | Method of making thin film pattern layer |
| JP2015106670A (en) * | 2013-12-02 | 2015-06-08 | パナソニックＩｐマネジメント株式会社 | Method of forming microstructure and manufacturing device of microstructure |
| CN107939387A (en) * | 2017-11-14 | 2018-04-20 | 中国石油大学(北京) | A kind of microcosmic rock network model production method |
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