In-situ high-temperature and high-pressure experimental device for small-angle scattering
A high-temperature, high-pressure, experimental device technology, applied in interdisciplinary fields, can solve problems such as difficult to accurately restore the geological conditions of shale samples, and achieve the effect of reducing the size
Active Publication Date: 2022-01-21
CHINA SPALLATION NEUTRON SOURCE SCI CENT +2
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Problems solved by technology
In recent years, small-angle scattering has been used to study the micro-nano reservoir space of shale. To realize the good development of shale oil and gas resources, it is necessary to finely characterize the micro-nano reservoir space, but it is limited to the environment conditions of normal temperature and pressure.
In addition, although some experimental devices have achieved independent environmental conditions such as heating, loading uniaxial pressure, and loading fluid pressure for small-angle scattering experimental research, these experimental conditions cannot be coupled to meet the needs of different experimental conditions, and it is difficult to accurately restore shale samples. geological condition
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[0015] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and genera...
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The invention provides an in-situ high-temperature and high-pressure experimental device for small-angle scattering. The in-situ high-temperature and high-pressure experimental device comprises a pressure loading system, a high-pressure cavity system and a heating system. A first pressure loading device loads fluid pressure to a sample in the sample space through a first injection channel, and a second pressure loading device enables a piston to move towards the direction of an emergent locking piece through a second injection channel so as to reduce the size of the sample space, so that the sample obtains uniaxial pressure, and the sample is in a high-pressure environment. A sample space can be maintained in a relatively stable high-temperature environment through a first heating unit and a second heating unit, so that environmental conditions such as high temperature, loading of uniaxial pressure and loading of fluid pressure are coupled, requirements of different experimental conditions are met, and a sample service environment is accurately restored.
Description
technical field [0001] The invention relates to interdisciplinary fields such as small-angle scattering, high-pressure science and technology, and geological resources, and in particular to an in-situ high-temperature and high-pressure experimental device for small-angle scattering. Background technique [0002] Small-angle scattering refers to the coherent scattering phenomenon that occurs within a small angle range of 2°-5° close to the original beam when the X-ray or neutron beam passes through the sample. Or the scattering ability of neutrons is different. Small-angle scattering is widely used in the study of the microstructure of matter, and it shows an increasing trend year by year. [0003] At present, my country is vigorously carrying out the exploration and development of shale oil and gas resources to make up for the shortage of conventional energy sources in my country and reduce the dependence on foreign energy sources. Small-angle scattering experiments are of ...
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IPC IPC(8): G01N23/201G01N23/202G01N23/20008
CPCG01N23/201G01N23/202G01N23/20008G01N2223/054
Inventor 袁宝胡钦红胡海韬白波童欣张涛柯于斌张绍英
Owner CHINA SPALLATION NEUTRON SOURCE SCI CENT