Permeation test device for simulating gas-liquid two-phase flow in coal body

Abstract

The invention belongs to the technical field of simulation penetration tests, and discloses a penetration test device for simulating gas-liquid two-phase flow in a coal body, a gas pump is mounted on a gas tank, the gas pump is connected with a gas flow rate acquisition module through a gas pipe, and the gas flow rate acquisition module is connected with a coal sample treatment and detection module through a gas pipe; a water pump is arranged on the water tank and connected with a water flow velocity acquisition module through an air pipe, and the water flow velocity acquisition module is connected with a coal sample treatment detection module through a pipeline; the coal sample processing detection module is connected with the central control processing module, the central control processing module is connected with the communication module, and the communication module is connected with the cloud server; the gas flow rate acquisition module and the water flow rate acquisition module are respectively connected with the central control processing module; the central control processing module is connected with the air pump and the water pump. According to the invention, the data processing speed and accuracy can be improved, and the permeation test data of the gas-liquid two-phase flow in the simulated coal body can be effectively processed.

Description

technical field [0001] The invention belongs to the technical field of simulated penetration tests, in particular to a penetration test device for simulating gas-liquid two-phase flow in coal bodies. Background technique [0002] At present, due to the common characteristics of low pressure, low permeability and low gas saturation in my country's coalbed methane reservoirs, the development of coalbed methane wells generally has low single well production and poor economic benefits. If only the method of pumping formation water in the coal seam is used to reduce the pressure of the coal seam to release the methane gas adsorbed in the coal seam without taking any measures to increase production, not only will the single well production of coal bed methane be low, but also the production of coal bed methane development wells will be low. will lose its mining value. In order to mine coal seams, coal penetration tests play a key role. Permeability test is a test to measure the ...

AI Technical Summary

Problems solved by technology

However, the permeation test equipment for simulating the gas-liquid two-phase flow in the coal body in the prior art cannot process the test data quickly and accurately during the use process, which reduces the safety and reliability of coal mining.

[0003] Through the above analysis, the existing problems and defects of the existing technology are: the penetration test equipment for simulating the gas-liquid two-phase flow in the coal body in the prior art cannot process the test data quickly and accurately during the use process, which reduces the cost of coal mining. safety and reliability

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