Visualization experiment device and method of pulverized coal migration law in cracks

The technology of an experimental device and experimental method, which is applied in the direction of construction, can solve the problems of studying the migration law of coal powder in the cracked medium, and achieve the effect of solving the migration, increasing the workload and increasing the cost

Active Publication Date: 2015-07-29
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 of pulverized coal migration law in cracks
  • Visualization experiment device and method of pulverized coal migration law in cracks
  • Visualization experiment device and method of pulverized coal migration law in cracks

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Experimental program
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Effect test

Embodiment approach 1

[0048] Such as Figure 1 to Figure 5 As shown, the experimental device for visualizing the movement of pulverized coal in cracks 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 to a first pipeline 4. The other end is connected to the left end of the middle slit assembly 1, one end of the right transition joint 2 is connected to the right end of the middle slit assembly 1, and the other end is connected to the second pipeline 5, the middle slit assembly 1 is a transparent structure, its Inside has adjustable width slits.

[0049] Wherein, the first pipeline 4 can be an inlet, and the second pipeline 5 can be a discharge outlet. Alternatively, the first pipeline 4 can be an outlet, and the second pipeline 5 can be an inlet. In the following, the first pipe 4 is an injection port, and the second pipe 5 is a discharge port as a...

Embodiment approach 2

[0070]A visual experiment method for coal dust migration in cracks, combined with Figure 12 As shown, it includes the following steps:

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

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

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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 visualization experiment device and method for coal powder migration law in cracks. Background technique [0002] As a kind of unconventional natural gas, coalbed methane is different from conventional oil and gas resources. It has neither trap nor caprock, and belongs to the type of self-generation and self-storage. The coal bed is both a source bed and a reservoir bed. After coal bed methane is generated, most of it is directly adsorbed on the surface of coal matrix particles, and part of it is free in coal pores or dissolved in coal seam water. The development of coalbed methane has entered the era of industrialization, but the research on its development theory obviously lags behind the development practice. The mining mechanism of coalbed methane is still in the vague stage, which obviously restricts the development and utilization of coalbed methane. In the process of coalbed methane mining and migration, the flow of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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