CO2 displacement shale gas simulation device equipment

1Equipment functions

1Isobaric diffusion displacement (dual chamber coal sample tank).

2High pressure injection replacement (single-sided chamber).

3Multi element gas automatic proportioning.

4Isolation sampling analysis.

5Three sets of coal sample tanks, simultaneously achieving functions such as displacement and adsorption equilibrium.

IIEquipment Technical Parameters

1Coal sample form: granular coal.

2Dual chamber coal sample tank: The net size of a single chamber is 60mm × 100mm, with a pressure resistance of 10Mpa; 3 coal sample tanks; The connection form between the dual chambers of the coal sample tank is valve.

3Multivariate gas ratio and injection system: 4 quantitative tanks, 10Mpa, with a net size of 60mm × 300mm. Mixing tank, 10Mpa, net size of φ 100mm × 300mm

4Pressure monitoring: monitoring range 0-10Mpa, monitoring accuracy 0.01Mpa.

5Constant temperature system: Temperature control range: room temperature -120 ℃, temperature control accuracy: 0.1 ℃.

6Gas analysis: Gas chromatograph, analyze components CH4 CO2、N2、O2、He； The detection range is 0-100%, with a minimum detection accuracy of 0.01%; Infrared gas sensor;

7Isolation sampling room: Specification: 20mm × 80mm, 10MPa.

8. Automatic collection and analysis of experimental testing data.

IIIEquipment structure composition

The equipment consists of the following systems:

1Multivariate gas ratio and injection system;

2Dual chamber coal sample tank;

3Constant temperature system;

4Vacuum system;

5Data measurement system;

6Collection system;

7Valve pipeline system;