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A device for measuring the amount of backflow in coalbed methane exploitation test

A technology for coalbed methane and mining pipes, which is applied in the field of devices for backflow, can solve the problem of inability to measure backflow, and achieve the effect of accurate measurement.

Active Publication Date: 2021-06-25
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for measuring the amount of backflow during the coalbed methane mining test in view of the problem that the existing metering device in the prior art cannot effectively measure the amount of backflow during the coalbed methane mining test device

Method used

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  • A device for measuring the amount of backflow in coalbed methane exploitation test
  • A device for measuring the amount of backflow in coalbed methane exploitation test

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Embodiment 1

[0042] A device for measuring the amount of backflow during the coalbed methane exploitation test, including several metering mechanisms, the metering mechanism includes a first pipe body 1 and a second pipe body 2 connected in parallel, and the first pipe body 1 is provided with There is a first one-way valve 3 and a first flow meter 4, and the second pipe body 2 is provided with a second one-way valve 5, and the first one-way valve 3 cooperates with the second one-way valve 5 , so that the first pipe body 1 and the second pipe body 2 allow gas to flow in the opposite direction.

[0043] The device for measuring the amount of backflow during the coalbed methane mining test described in the above scheme includes several measuring mechanisms. Before the mining test, one or more measuring mechanisms are selected according to the number of coal seams that need to be simultaneously exploited and tested, so that the number of coal seams Match the number of metering mechanisms, and ...

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Abstract

The present invention relates to the technical field of coal seam exploration, in particular to a device for measuring the amount of backflow in the coalbed methane exploitation test, which includes several metering mechanisms, and the metering mechanisms include a first pipe body and a second pipe body connected in parallel with each other, so that A first one-way valve and a first flow meter are arranged on the first pipe body, a second one-way valve is arranged on the second pipe body, and the first one-way valve is connected to the second one-way valve. Cooperate, so that the first pipe body and the second pipe body allow gas to flow in the opposite direction. The beneficial effects of adopting the present invention are as follows: during the mining test, the amount of backflow of gas can be effectively measured, and with the cooperation of the first one-way valve and the second one-way valve, the first flowmeter only measures the backflow The gas has been measured and the measurement is relatively accurate.

Description

technical field [0001] The invention relates to the technical field of coal seam exploration, in particular to a device for measuring the amount of backflow in the coal bed gas exploitation test. Background technique [0002] Coalbed methane refers to hydrocarbon coalbed methane stored in coal seams with methane as the main component, mainly adsorbed on the surface of coal matrix particles, and partly free in coal pores or dissolved in coal seam water. It is an associated mineral resource of coal and belongs to very Standard natural gas is a clean, high-quality energy and chemical raw material that has risen internationally in the past ten or twenty years. The exploitation and utilization of coalbed methane reduces resource waste and environmental pollution. [0003] In recent years, with the development of science and technology, human beings have made breakthroughs in the development of coalbed methane. In the process of coalbed methane mining, it is often easy to encoun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00E21B47/00E21B47/06
CPCE21B43/006E21B47/00E21B47/06
Inventor 彭守建许江李奇贤闫发志尹光志王维忠张超林韩恩德甘青青吴斌程亮王瑞芳
Owner CHONGQING UNIV
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