Visual natural gas hydrate sediment mechanical property testing apparatus

A technology for hydrate deposits and mechanical properties, applied in the measurement device, strength properties, and the use of stable tension/pressure to test the strength of materials, etc., can solve the problems of large volume, poor penetration performance, large weight, etc. Good ray penetration performance, guaranteed penetration performance, and the effect of light overall weight

CN104155188AActive Publication Date: 2014-11-19DALIAN UNIV OF TECH
5 Cites 56 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-11-19

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a visual natural gas hydrate sediment mechanical property testing apparatus, belonging to the field of the measurement of basic natural gas hydrate physical properties. The visual natural gas hydrate sediment mechanical property testing apparatus mainly comprises an automatic-pressing triaxial apparatus main machine, an axial loading system, a confining pressure control system, a backpressure control system, a temperature control system, a data collection system and an X-ray CT (computed tomography) imaging system. The low-temperature high-pressure hydrate triaxial apparatus is organically combined with the X-ray CT imaging system, so that the testing on macro and micro mechanical properties of natural gas hydrate sediments can be synchronously carried out. The visual natural gas hydrate sediment mechanical property testing apparatus can simulate a stress state of a real reservoir stratum, macro and micro mechanical property data of the natural gas hydrate sediments can be acquired, the important significance on disclosing a deformation mechanism of the natural gas hydrate reservoir stratum and a triggering mechanism of geological hazards such as submarine landslide caused by the decomposition of natural gas hydrate can be realized, and an important guiding function for safely and high efficiently exploiting the natural gas hydrate can be realized.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a visual test device for the mechanical properties of natural gas hydrate deposits, which belongs to the field of basic physical property measurement of natural gas hydrate. Background technique

[0002] Natural gas hydrate has the characteristics of wide distribution, large amount of resources, shallow burial, high energy density, and cleanliness. It is the largest unknown energy pool that has not yet been developed on the earth. It is considered to be the most ideal new energy source with commercial development prospects in the 21st century. The safe exploitation of natural gas hydrate has been widely valued by scientists and governments of various countries, and has become a new research hotspot in the oil and gas industry, and may have a profound impact on the development of environmental science and energy industry. In the process of natural gas hydrate exploration and production, the decomposition of hydrate will affect t...

Examples

Embodiment Construction

[0034] figure 1 Shown is the working principle diagram of a visual test device for the mechanical properties of natural gas hydrate sediments. The working process is as follows: the back pressure control system provides the natural gas and water required for the reaction and generation of natural gas hydrate sediment samples, as well as the generation and decomposition. Pore ​​pressure during the process and triaxial compression; the temperature control system controls the temperature during the formation and decomposition of gas hydrate deposits and the process of triaxial compression by reducing the temperature of the hydraulic oil in the confining pressure control system; the confining pressure control system Mainly used to maintain the confining pressure in the process of formation and decomposition of natural gas hydrate deposits and in the process of triaxial compression; the axial loading system injects hydraulic oil through the plunger pump to push the piston to control...