Earthquake physical model and preparation method and application thereof
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A technology of seismic physics and modeling, applied in the field of geophysical exploration, can solve problems such as the stability of elastic parameters of model materials, insufficient attenuation performance of model materials, and long model periods
Active Publication Date: 2012-05-09
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0008] 1. The controllable speed of the model material is limited;
[0009] 2. There are still problems with the stability of the elastic parameters of the model material;
[0010] 3. The understanding of the attenuation performance of model materials is not enough;
[0011] 4. The cycle of model making is long and the price of materials is high;
[0012] 5. Existing model materials have limitations for reservoir simulation
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Embodiment 1
[0101] Methyl room temperature vulcanizing silicone rubber 100
[0102] Tetraethyl orthosilicate 4
[0103] Dibutyltin dilaurate 1
[0104] Tributyl phosphate 0.3
[0105] White carbon black (SiO2) 5
[0106] KH-560 silane coupling agent 1
[0107] The above is calculated by weight fraction.
[0108] 1. Pour the silicone rubber into the container, put it into the oven, control the temperature between 50 degrees, take it out after 4 hours, then put the container into the airtight box to evacuate, discharge the air bubbles in the material, and control the vacuum pressure at -0.1Mpa , pump for 120 minutes to spare.
[0109] 2. Ethyl orthosilicate, dibutyl tin dilaurate, and tributyl phosphate are put into containers, and each is vacuumed in a sealed box to discharge the air bubbles in the material. The vacuum pressure is controlled at -0.1Mpa, and the vacuum pressure is 60 minutes to spare.
[0110] 3. Add white carbon black (SiO2) and tributyl phosphate to the silicone ru...
Embodiment 2～39
[0113] Referring to Example 1, use similar methods and steps to select different ratios of the main material epoxy resin and / or silicone rubber to obtain different model material parameter models. Ingredients method is auspiciously shown in table 1, the list of embodiments of the present invention, and the effect is shown in the appendix figure 1 (the abscissa in the figure represents 39 embodiments, and the ordinate represents the longitudinal wave velocity VP of the model).
[0114] Table 1 list of embodiments of the present invention (data in the table is the ratio of parts by weight)
[0115]
[0116]
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Abstract
The invention provides an earthquake physical model and a preparation method and application thereof. The materials of the earthquake physical model comprise main materials, auxiliary materials and aids, wherein the main materials are epoxy resin and rubber, and the aids are curing agent, cross-linking agent, diluent, defoaming agent and the like. A novel earthquake physical model material is synthesized by special preparing equipment and processes and used for building an earthquake physical model according to a similarity principle to simulate a real geological structure; and the earthquake physical model can be used for research on seismic wave field and researches for other purposes, particularly used for researching kinematics and kinematic characteristics of seismic waves propagating in complicated areas; moreover the earthquake physical model can provide objective bases for verification of new methods and new theories in oil-gas exploration and development.
Description
technical field [0001] The invention relates to the field of geophysical exploration, in particular to a seismic physical model for simulating actual geological structures in seismic wave field research, a preparation method and application thereof. Background technique [0002] With the continuous deepening of oil and gas exploration and development in my country, the focus of expanding oil and gas discovery has gradually extended to complex areas. Many geological phenomena and wave field propagation theories are in urgent need of further verification and improvement, and exploration methods also need to be further developed. [0003] Seismic exploration is one of the important methods in geophysical exploration. It is based on the elasticity of rock. The basic method of research is to artificially stimulate seismic waves with explosives or non-explosives. When seismic waves pass through different underground media, due to their elastic properties and The geometry is diffe...
Claims
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