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Sample preparation and transfer device and method for combined test of hydrate CT and SEM

A combined test and sample preparation technology, applied in the preparation of test samples, measuring devices, analysis of suspensions and porous materials, etc., can solve problems such as simultaneous testing of CT and SEM samples that cannot be hydrated

Active Publication Date: 2019-03-29
QINGDAO INST OF MARINE GEOLOGY
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Problems solved by technology

Limited by the nature of hydrate samples and relatively harsh test conditions, it is not yet possible to simultaneously test CT and SEM hydrate samples

Method used

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  • Sample preparation and transfer device and method for combined test of hydrate CT and SEM
  • Sample preparation and transfer device and method for combined test of hydrate CT and SEM
  • Sample preparation and transfer device and method for combined test of hydrate CT and SEM

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Embodiment Construction

[0026] In order to further elaborate the technical means and effects that the present invention adopts for reaching the intended invention purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, features and effects of the present invention are described in detail as follows:

[0027] Proposal process of this application: The microcosmic characteristics of gas hydrate samples, such as microcosmic occurrence morphology, three-dimensional pore structure distribution, and contact relationship with sediments, are of great importance to the in-depth understanding of the basic properties of hydrates and the revealing of natural gas hydrate accumulation and decomposition mechanisms. It is the basic parameter for establishing a three-dimensional pore reconstruction model. The main means to obtain the above microscopic properties is to use advanced X-CT and SEM testing technologies. However, CT and SEM technologies ...

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Abstract

The invention discloses a sample preparation and transfer device and method for combined test of hydrate CT and SEM, and relates to the technical field of natural gas hydrate micro-test. The device comprises an environmental protection module, a gas supply and temperature control module and a sample transfer module. A quick-open moving sample protection kettle comprises a cabin cover, a detachablekettle base and a cabin body, wherein kettle base has a size and a shape matched with the size and shape of an SEM sample stage groove, and is used for directly feeding the quick-open moving sample protection kettle into the SEM freezing and transfer system pretreatment chamber and an SEM sample stage; and the cabin body has a size and a shape matched with the size and shape of a CT sample chamber, and is directly placed in the CT sample chamber after being removed from the kettle base for CT scanning. The device and method have the beneficial effect of obtaining two-dimensional surface topography and three-dimensional pore distribution of a same sample at different microscopic scales through the system, thereby enriching the understanding to the basic properties of the hydrate, and providing basis for the explanation of a hydrate accumulation mechanism and the theoretical research of mining methods.

Description

technical field [0001] The invention relates to the technical field of microscopic testing of natural gas hydrates, in particular to a device and method for sample preparation and transfer for combined testing of hydrates by CT and SEM. Background technique [0002] Natural gas hydrate is a new type of clean energy with great commercial development prospects, and the research on its accumulation mechanism and effective extraction methods has always been the focus of research. The study of microcosmic characteristics such as the microscopic occurrence form of gas hydrate, the distribution of three-dimensional pore structure, and the contact relationship with sediments plays an important role in revealing the mechanism of gas hydrate accumulation and decomposition, and then provides a basic theory for gas hydrate accumulation and development and utilization. support. [0003] At present, the main way to study the microscopic properties of hydrate such as the occurrence form, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N1/28
CPCG01N1/28G01N15/0806G01N15/088
Inventor 孙建业李承峰陈强郝锡荦刘昌岭程军李彦龙
Owner QINGDAO INST OF MARINE GEOLOGY
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