Deep rock similar material based on electromagnetic overload and variable temperature softening
A technology of rock-similar and soft-magnetic materials, applied in the field of geomechanical model similar materials, can solve the problems of restricting the development of geomechanical model tests, unable to provide assistance for deep resource mining, etc., to improve service life, short production cycle, Simple craftsmanship
Pending Publication Date: 2022-07-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
The existing geotechnical similar materials have not taken this into consideration, which directly limits the development of relevant geomechanical model tests and cannot provide assistance for deep resource mining
Method used
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Embodiment 1
[0024] The preparation process of the similar material of the present invention is:
[0025] 1. Take 600-mesh barite powder and add quartz sand into the mixer at a mass ratio of 1:0.33, and then add 20% by weight of fusible polymer material and ferrite soft magnetic material magnetic powder, slow speed Stir well until completely mixed;
[0026] 2. Add 3% motor oil by weight to the mixer as a binder, and further stir at a slow speed;
[0027] 3. Pour the mixed mixture into the steel mold, and compact the mixture under the pressure of 1.5MPa;
[0028] 4. After the press is compacted, the mold is disassembled, and the molded sample is taken out and dried at room temperature for 48 hours to obtain the deep rock-like material based on electromagnetic overloading and temperature-change softening.
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The invention relates to the field of similar materials of geotechnical and geomechanical models, in particular to a deep rock similar material based on electromagnetic overload and variable-temperature softening. The material is prepared by mixing and uniformly stirring barite powder, quartz sand, engine oil, a fusible high polymer material and ferrite soft magnetic material magnetic powder according to a certain ratio. The composite material has the characteristics of high volume weight, stable performance, low price, simple and convenient preparation process, reusability and the like, and can be used for simulating rock properties and mechanical behaviors of deep rocks in high-temperature and high-ground-stress environments. The method can be widely applied to various fields of deep resource development and corresponding geomechanical model tests, and has a wide prospect.
Description
technical field [0001] The invention relates to the field of similar materials for geotechnical and geomechanical models, in particular to a deep rock similar material based on electromagnetic overloading and softening at variable temperature. Background technique [0002] With the development of the world economy, human demand for geological environmental resources is increasing day by day, and the earth's shallow resources are gradually depleted with the increase of demand, and the development of deep geological resources has become the general trend. In terms of resource exploitation, the depth of geothermal exploitation is more than 3000m, the exploitation depth of oil and gas resources is up to 7000m, and the exploitation of other resources is also developing into deep layers. However, there is still a lack of understanding of the rock properties and mechanical behavior in deep and ultra-deep areas. [0003] Geomechanics model test is a test method for scaled research ...
Claims
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IPC IPC(8): C04B26/00C04B14/36
CPCC04B26/003C04B14/36C04B2111/00991C04B14/368C04B14/06C04B24/24
Inventor 杨文东王子玉姚军王柄淇李屹伟黄朝琴张旭
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)