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A multi-coal seam coalbed methane co-production experimental device

An experimental device and coalbed methane technology, applied in the direction of earthwork drilling, wellbore/well components, etc., can solve the problem of inability to accurately characterize the fluid migration of multiple oil and gas layers

Inactive Publication Date: 2020-04-03
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the existing experimental device cannot accurately characterize the fluid migration between multiple oil and gas layers, the present invention provides a multi-coal seam coalbed methane co-production experimental device, the multi-coal seam coalbed methane co-production experimental device can Simulate the migration process of gas in multi-coal seams in the process of multi-coal bed methane co-production, so as to monitor the flow of gas in and between multi-coal seams under different coal physical properties, different inlet pressures, and different outlet pressures

Method used

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  • A multi-coal seam coalbed methane co-production experimental device
  • A multi-coal seam coalbed methane co-production experimental device
  • A multi-coal seam coalbed methane co-production experimental device

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Embodiment Construction

[0033] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0034] A multi-coal seam coalbed methane co-production experimental device, comprising:

[0035] The test piece rubber cartridge sealing assembly 10 is used to install the experimental sample 11. A plurality of test piece rubber cartridge sealing assemblies 10 are stacked, and two adjacent test piece rubber cartridge sealing assemblies 10 are connected;

[0036] The axial pressure loading system 20 can independently provide axial pressure to the experimental sample 11 in each test piece rubber cylinder seal assembly 10, and the direction of the axial pressure on each experimental sample 11 is the same as the stacking direction of the test piece rubber cylinder seal assembly 10 same;

[0037] ...

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Abstract

The invention provides an experimental device for combined mining of coal bed gas of multiple coal beds. The experimental device comprises specimen rubber cylinder sealing assemblies (10), an axial pressure loading system (20), a confining pressure loading system (30), a pore pressure system (40) and a mining system (50), and the two adjacent specimen rubber cylinder sealing assemblies communicate with each other. According to the experimental device for combined mining of the coal bed gas of the multiple coal beds, real simulation of the gas migration process in the combined mining process of the coal bed gas of the multiple coal beds is conducted, so that the flow condition of gas in and between the multiple coal beds under different physical properties of coal and rock, different inlet pressures and different outlet pressures is monitored.

Description

technical field [0001] The invention relates to the field of coalbed methane mining experimental equipment, in particular to a multi-coal seam coalbed methane co-production experimental device. Background technique [0002] my country's coalbed methane industry has entered the stage of commercial production, but it is limited to the Qinshui Basin and the Ordos Basin. It will be expanded to the late Permian in Southwest my country and the Late Jurassic in Xinjiang in due course, and the rich coalbed methane resources in these areas will be effectively developed. The eastern Yunnan-western Guizhou region is one of the regions with the most abundant coal resources in southern my country. A large number of previous studies have shown that through geological exploration of coal fields, the proven and predicted reserves of coal resources in major coal-bearing synclines are as high as 1918.7×10 8 t, the rank of coal is gas coal and anthracite, the gas content of the coal seam is hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/00
CPCE21B49/00
Inventor 汪志明王小秋叶建平郭肖顾娇杨赵岩龙
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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