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Visualization experiment device and method for transport law of coal dust in cracks

A technology of experimental device and experimental method, applied in construction and other directions, can solve problems such as studying the law of coal powder migration in fractured media, and achieve the effects of reducing reliability, increasing workload, and increasing multi-directionality.

Active Publication Date: 2013-05-08
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no one has used physical simulation experiments to study the migration of coal powder in fractured media.

Method used

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  • Visualization experiment device and method for transport law of coal dust in cracks
  • Visualization experiment device and method for transport law of coal dust in cracks
  • Visualization experiment device and method for transport law of coal dust in cracks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0048] Such as Figure 1 to Figure 5 As shown, the experimental device for visualizing the migration law of pulverized coal in the crack proposed by the embodiment of the present invention includes a middle crack assembly 1, a left transition joint 2 and a right transition joint 3, and one end of the left transition joint 2 is connected with a first pipe 4. The other end is connected to the left end of the middle crack assembly 1, one end of the right transition joint 2 is connected to the right end of the middle crack assembly 1, and the other end is connected with a second pipe 5, the middle crack assembly 1 is a transparent structure, which There are cracks with adjustable width inside.

[0049] Wherein, the first pipe 4 may be an injection port, and the second pipe 5 may be a discharge port. Alternatively, the first pipe 4 may be a discharge port, and the second pipe 5 may be an injection port. In the following, the first pipe 4 is an injection port and the second pipe 5 is ...

Embodiment approach 2

[0070] A visual experiment method for the movement of pulverized coal in cracks, with Picture 12 As shown, it includes the following steps:

[0071] Provide the above-mentioned visual experimental device for the movement of pulverized coal in the crack;

[0072] Provide a liquid control pipeline 11 and a gas control pipeline 12 arranged in parallel, the liquid control pipeline 11 and the gas control pipeline 12 are connected in parallel to the gas-liquid control pipeline 13 and the first pipeline 4 in sequence;

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Abstract

The embodiment of the invention discloses a visualization experiment device and a visualization experiment method for a transport law of coal dust in cracks. The visualization experiment device comprises a middle crack assembly, a left transition joint and a right transition joint, wherein a first pipeline is connected to one end of the left transition joint, and the other end of the left transition joint is connected to the left end of the middle crack assembly; one end of the right transition joint is connected to the right end of the middle crack assembly, and the other end of the right transition joint is connected with a second pipeline; the middle crack assembly has a transparent structure; and the width adjustable cracks are reserved in the middle crack assembly. According to the visualization experiment device, the widths of the cracks can be regulated, so that the cracks of different widths can be simulated, the manufacturing cost of the device is reduced greatly, and the comprehensiveness of physical simulation experiments is increased greatly.

Description

Technical field [0001] The invention relates to a visualized experimental device and method for the movement law of pulverized coal in cracks. Background technique [0002] As an unconventional natural gas, coalbed methane is different from conventional oil and gas resources. It has neither traps nor caprocks, and belongs to the type of self-generation and self-storage. The coal bed is both a hydrocarbon source bed and a reservoir bed. After the formation of coal bed methane, most of it is directly adsorbed on the surface of coal matrix particles, and some is free in coal pores or dissolved in coal bed water. The development of coalbed methane has entered the age of industrialization, but the research on its development theory has obviously lagged behind its development practice. The mining mechanism of CBM is still in a fuzzy stage, which obviously restricts the development and utilization of CBM. In the process of coalbed methane mining and migration, the flow of coalbed meth...

Claims

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Application Information

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IPC IPC(8): E21B47/002
Inventor 韩国庆吴晓东安永生范卫潮李翔竺彪郭宏峰高飞张珈铭徐立坤周颖娴张壮刘凯刘双双
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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