CN112442254B - Composition for preparing earthquake physical model, earthquake physical model and preparation and construction methods - Google Patents
Composition for preparing earthquake physical model, earthquake physical model and preparation and construction methods Download PDFInfo
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- CN112442254B CN112442254B CN201910816101.9A CN201910816101A CN112442254B CN 112442254 B CN112442254 B CN 112442254B CN 201910816101 A CN201910816101 A CN 201910816101A CN 112442254 B CN112442254 B CN 112442254B
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- 239000000203 mixture Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title description 6
- 238000010276 construction Methods 0.000 title description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000741 silica gel Substances 0.000 claims abstract description 17
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 17
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 238000004088 simulation Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000004593 Epoxy Substances 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 5
- 238000011160 research Methods 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 230000005284 excitation Effects 0.000 abstract description 13
- 238000002604 ultrasonography Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 12
- 239000011325 microbead Substances 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/40—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for geology
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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Abstract
The invention belongs to the field of earthquake physical models, and particularly relates to a geophysical reservoir model, which is mainly prepared from compositions such as epoxy resin, silica gel, aluminum powder and the like, wherein the longitudinal wave speed and the transverse wave speed of a model material are controlled by changing the content of each component, the longitudinal wave speed can be controlled to be graded between 2800m/s and 4900m/s, and the transverse wave speed can be controlled to be graded between 1500m/s and 2600 m/s. The reservoir model manufactured by the geophysical reservoir model composition and the manufacturing method has good penetrability under the excitation of strong pulses of laser ultrasound, and good seismic wave reflection data can be obtained when the composition is applied and tested by physical simulation, so that a new method is provided for researching reservoir geologic bodies and laser ultrasound.
Description
Technical Field
The invention relates to the field of geophysical exploration, in particular to a reservoir model composition for simulating seismic acquisition in geophysical exploration and a preparation method of a model.
Background
The physical simulation of earthquake is to simulate field earthquake waves in a laboratory by utilizing ultrasonic waves, excite and receive signals through ultrasonic transducers, so that the physical model which accords with actual geological structures or different reservoir types is manufactured in the laboratory, the kinematics and dynamics characteristics of the earthquake waves in complex structures and complex reservoirs are researched, the material for manufacturing the physical model must have certain geological characteristics, epoxy resin and silicone rubber synthetic earthquake physical model materials are mainly used in various institutions and universities, the acoustic wave propagation speed of the material is changed by changing the proportion of the epoxy resin and the silicone rubber, the speed can be gradually changed from 1000m/s to 2600m/s, and the physical model with different speeds can be manufactured according to the stratum speed requirement.
The laser ultrasonic excitation technology, also called laser excitation ultrasonic technology, is currently used for excitation on the metal surface, and the research of the metal material for simulating the geophysical model obviously cannot embody the characteristic of gradual change of speed, so that the metal material cannot be simulated by the geophysical model. If the laser ultrasonic excitation is carried out by using the materials with the traditional epoxy resin and silicone rubber ratio, the ablation occurs and the repeated excitation cannot be carried out if the applicable energy cannot be achieved.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an aluminum-containing reservoir physical model material and a preparation method thereof. The method comprises the steps of proportioning epoxy resin and silicon rubber, proportioning aluminum powder with different mesh numbers, adding other auxiliary agents, placing the mixed materials into a mold for curing and forming, and changing the content of the silicon rubber and the proportion of the aluminum powder with different mesh numbers to prepare the simulated reservoir materials with different longitudinal and transverse wave propagation speeds. The method overcomes the defect that the existing molding material cannot bear high-energy laser excitation, and is used for geophysical simulation experiment laser ultrasonic excitation test after a new simulation reservoir material is used for manufacturing a model and laser excitation high-energy pulse is not ablated. The new simulated reservoir material has the characteristic of high strength and better penetrability, and lays a foundation for manufacturing and testing a physical model of the reservoir.
It is an object of the present invention to provide a seismic physical composition comprising aluminum powder and a substrate, the substrate being an epoxy resin and an epoxy curing agent, and/or a silica gel and a silica gel curing agent.
According to a preferred embodiment of the present invention, the aluminum powder is present in the composition in an amount of 10% to 90%, preferably 10% to 50% by mass.
In some embodiments of the invention, the aluminum powder particle size is in the range of 550-650 mesh.
In some embodiments of the invention, the composition comprises the following components in parts by weight:
in some embodiments of the invention, the composition comprises the following components in parts by weight:
in some embodiments of the invention, the composition comprises the following components in parts by weight:
in some embodiments of the invention, the epoxy resin is E-51.
In some embodiments of the invention, the silica gel is ST-107.
In some embodiments of the invention, the epoxy curing agent and the silica gel curing agent are modified amine curing agents
According to a preferred embodiment of the present invention, the epoxy curing agent and the silicone curing agent are curing agent 2216.
It is a further object of the present invention to provide a seismic physical model made using the composition of one of the objects.
The invention also provides a preparation method of the earthquake physical model with the second purpose, which comprises the following steps:
s1, weighing aluminum powder and a base material;
s2, mixing aluminum powder with epoxy resin and/or silica gel to obtain a first mixture; mixing the first mixture with an epoxy curing agent and/or a silica gel curing agent to obtain a second mixture;
and S3, curing the second mixture. In the preparation of the material, if the amount of a certain component is 0, the component is not added, and the component is skipped in the subsequent steps.
After 48 hours, the mold was disassembled and the cured physical model was removed. Modeling of a physical simulation reservoir that may be used for laser-received ultrasound is completed.
The fourth object of the present invention is to provide a method for constructing a seismic physical model using the second object, comprising the steps of:
firstly, according to a research target, parameters such as longitudinal wave speed and transverse wave speed of a simulation target horizon are determined;
then, according to the geologic structure interpretation design model, determining the geometric similarity ratio and the dynamic similarity ratio of the model;
selecting a proper material formula for the reservoir target layer;
after the formula is determined, a model is manufactured according to the model manufacturing step, after the model is solidified, the model is demoulded, model parameters of the layer are measured after the model is demoulded, and after the model meets the requirements, the physical simulation laser receiving ultrasonic test is carried out.
Optical properties of aluminum powder: the aluminum powder is made of aluminum with light color and high metallic luster, the surface of the aluminum powder is smooth and clean, 60% -90% of visible light, ultraviolet light and infrared light can be reflected, and the aluminum powder-containing coating is used for coating an object, and the surface of the aluminum powder is silvery and bright, which is the characteristic of reflecting light of the aluminum powder.
The reflective powder product adopts aluminum plating on the rear half surface of the high refractive index glass beads as a retro-reflector, has extremely strong retro-reflection performance, can directly reflect 85% of light rays to the light source, has reflective brightness caused by retro-reflection, and can enable drivers and night operators with the light source to clearly see pedestrians and obstacle targets under the condition of bad night or visual field, thereby ensuring the safety of both sides.
When light irradiates on the surface of the microbead, the light is concentrated on a special reflecting layer at the focus of the microbead due to the high refraction effect of the microbead, and the reflecting layer reflects the light to the vicinity of the light source again through the transparent microbead, so that the very bright reflected light can be seen at the light source. According to the calculation of a complex optical formula, when the refractive index of the microbeads is more than 1.9, a good retro-reflection effect can be formed. The reflective powder is a core element for producing novel luminous functional composite materials such as reflective cloth, reflective leather, reflective film, reflective paint and the like, has the characteristic of retro-reflection and generates stronger reflection effect.
The invention has the beneficial effects that:
the invention firstly tries to add aluminum powder into a geophysical model for simulation, develops a new reservoir model manufacturing method for seismic physics simulation, and is successfully applied to manufacturing of a laser ultrasonic excitation reservoir physical model. The geophysical reservoir model has good penetrability and can obtain effective reflection signals; has the characteristic of high intensity, and can bear the ultrasonic excitation of high-intensity laser without ablation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention, without limitation to the invention. In the drawings:
FIG. 1 is a graph showing the longitudinal and transverse wave velocity distribution of a geophysical augmented modeling material according to an embodiment of the present invention, with longitudinal wave velocities graded from 2800m/s to 4900m/s and transverse wave velocities graded from 1500m/s to 2600 m/s.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples.
The following materials and auxiliaries are used in the examples:
aluminum powder: the main component is aluminum oxide, the specification is 600 meshes, and Shanghai fine analysis chemical engineering Co., ltd.
The size of the manufactured model is 30 x 20 x 5cm, the testing method is an ultrasonic transducer transmission method, and the wave velocity is calculated according to the thickness and the first arrival time received by the ultrasonic transducer.
Example 1:
second layer of physical model of certain region: reservoir destination simulated velocity design vp=2800m/s vs=1500m/s
The weight portions are calculated as above.
Example 2:
second layer of physical model of certain region: reservoir destination simulated velocity design vp=3200 m/s vs=1800 m/s
The weight portions are calculated as above.
Example 3:
second layer of physical model of certain region: reservoir destination simulated velocity design vp=3800 m/s vs=2000 m/s
The weight portions are calculated as above.
Example 4:
second layer of physical model of certain region: reservoir destination simulated velocity design vp=4200m/s vs=2200 m/s
The weight portions are calculated as above.
Example 5:
first layer of physical model of certain region: reservoir destination simulated velocity design vp=4900 m/s vs=2600 m/s
The weight portions are calculated as above.
Example 6:
first layer of physical model of certain region: reservoir destination simulated velocity design vp=4200m/s vs=2200 m/s
The weight portions are calculated as above.
Example 7:
first layer of physical model of certain region: reservoir destination simulated velocity design vp=3800 m/s vs=2000 m/s
The weight portions are calculated as above.
Example 8:
first layer of physical model of certain region: reservoir destination simulated velocity design vp=3200 m/s vs=1800 m/s
The weight portions are calculated as above.
From the above examples it can be seen that the sonic velocity can be varied with epoxy and silica gel, for example examples 1-5. The speed of sound waves can be varied by varying the aluminum powder content, for example, examples 6-8. The required sound wave speed ratio can be finely controlled by two methods for changing the sound wave speed.
The model material is used for the surface layer of the earthquake physical model, enhances the strength of the surface layer, plays a role in increasing the excitation strength in laser ultrasonic excitation, effectively resists cladding, plays a role in surface reflection characteristic in laser Doppler vibration measurement and reception, and effectively enhances the received signals.
It should be noted that the above-described embodiments are only for explaining the present invention and do not constitute any limitation of the present invention. The invention has been described with reference to exemplary embodiments, but it is understood that the words which have been used are words of description and illustration, rather than words of limitation. Modifications may be made to the invention as defined in the appended claims, and the invention may be modified without departing from the scope and spirit of the invention. Although the invention is described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein, as the invention extends to all other means and applications which perform the same function.
Claims (8)
1. A composition for preparing a seismic physical model, which is characterized by comprising aluminum powder and a base material, wherein the base material is epoxy resin and an epoxy curing agent, and/or silica gel and a silica gel curing agent; the mass percentage of the aluminum powder in the composition is 10% -50%; the particle size of the aluminum powder is 550-650 meshes.
2. The composition of claim 1, comprising the following components in parts by weight:
the epoxy resin is 0-6000; the epoxy curing agent is 0-3000; silica gel 0-6000; the silica gel curing agent is 0-300; the aluminum powder is 2000-4000.
3. The composition according to claim 1, comprising the following components in parts by weight:
the epoxy resin is 1-900, or 1000-2000, or 2500-4000; or, the epoxy curing agent is 1-500, 600-1000, or 1200-2000; or, silica gel 1-1000, 1100-2000, 2500-3500; or, the silica gel curing agent is 1-50, or 60-90, or 95-200.
4. The composition of claim 1, wherein the epoxy resin is E-51; and/or the silica gel is ST-107.
5. The composition of any of claims 1-4, wherein the epoxy curing agent and the silicone curing agent are modified amine curing agents, specifically curing agent 2216.
6. A seismic physical model made from the composition of any one of claims 1-5.
7. The method for preparing a seismic physical model according to claim 6, comprising the steps of:
s1, weighing aluminum powder and a base material;
s2, mixing aluminum powder with epoxy resin and/or silica gel to obtain a first mixture; mixing the first mixture with an epoxy curing agent and/or a silica gel curing agent to obtain a second mixture;
and S3, curing the second mixture.
8. A method of constructing a seismic physical model according to claim 6, comprising the steps of:
firstly, determining a longitudinal and transverse wave speed parameter of a simulation target horizon according to a research target;
then, according to the geologic structure interpretation design model, determining the geometric similarity ratio and the dynamic similarity ratio of the model;
selecting a proper material formula for the reservoir target layer;
after the formula is determined, a model is manufactured according to the model manufacturing step, after the model is solidified, the model is demoulded, model parameters of the layer are measured after the model is demoulded, and after the model meets the requirements, the physical simulation laser receiving ultrasonic test is carried out.
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| CN201910816101.9A CN112442254B (en) | 2019-08-30 | 2019-08-30 | Composition for preparing earthquake physical model, earthquake physical model and preparation and construction methods |
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| CN201910816101.9A CN112442254B (en) | 2019-08-30 | 2019-08-30 | Composition for preparing earthquake physical model, earthquake physical model and preparation and construction methods |
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| CN112442254B true CN112442254B (en) | 2023-12-05 |
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| CN102443245A (en) * | 2010-10-12 | 2012-05-09 | 中国石油化工股份有限公司 | Earthquake physical model and preparation method and application thereof |
| CN102951875A (en) * | 2011-08-25 | 2013-03-06 | 中国石油化工股份有限公司 | Earthquake physical reservoir model, preparation method thereof and application thereof |
| CN104231544A (en) * | 2013-06-19 | 2014-12-24 | 中国石油化工股份有限公司 | Earthquake physical model material and preparation method thereof |
| CN105001594A (en) * | 2014-04-18 | 2015-10-28 | 中国石油化工股份有限公司 | Earthquake physical model material and model |
| JP2016128536A (en) * | 2015-01-09 | 2016-07-14 | 株式会社小松プロセス | Reflective coated article, reflective paint and coating method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101297099B1 (en) * | 2011-05-13 | 2013-08-20 | 한국원자력연구원 | Epoxy resin compositions for neutron shielding materials and mehtod for preparing the same |
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Patent Citations (6)
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|---|---|---|---|---|
| CN101586383A (en) * | 2009-06-19 | 2009-11-25 | 南京林业大学 | Multipurpose solar waveform shingle |
| CN102443245A (en) * | 2010-10-12 | 2012-05-09 | 中国石油化工股份有限公司 | Earthquake physical model and preparation method and application thereof |
| CN102951875A (en) * | 2011-08-25 | 2013-03-06 | 中国石油化工股份有限公司 | Earthquake physical reservoir model, preparation method thereof and application thereof |
| CN104231544A (en) * | 2013-06-19 | 2014-12-24 | 中国石油化工股份有限公司 | Earthquake physical model material and preparation method thereof |
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| JP2016128536A (en) * | 2015-01-09 | 2016-07-14 | 株式会社小松プロセス | Reflective coated article, reflective paint and coating method |
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