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Hai'an County Petroleum Research Instrument Co., Ltd
Gas breakthrough pressure testing device for carbon dioxide rocks
NegotiableUpdate on 05/06
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Overview
After the rock sample is saturated with a wetting fluid, the non wetting fluid must overcome the capillary resistance of the rock in order to displace the wetting fluid. The smaller the capillary radius of the rock, the greater the measured resistance and the higher the required breakthrough pressure. Gradually increasing the test pressure at the inlet under simulated geological conditions, when the pressure is sufficient to displace the saturated fluid in the rock sample, gas breakthrough and escape can be seen at the outlet, and the breakthrough pressure of the rock sample can be measured.
Product Details
I. Overview
After the rock sample is saturated with a wetting fluid, the non wetting fluid must overcome the capillary resistance of the rock in order to displace the wetting fluid. The smaller the capillary radius of the rock, the greater the measured resistance and the higher the required breakthrough pressure. Gradually increasing the test pressure at the inlet under simulated geological conditions, when the pressure is sufficient to displace the saturated fluid in the rock sample, gas breakthrough and escape can be seen at the outlet, and the breakthrough pressure of the rock sample can be measured.
According to Botao Ye (1949) The formula calculates the time it takes for the gas to cross from the bottom boundary to the top boundary of the cap layer, which is the breakthrough time.
This device is used for measuring breakthrough pressure of tight sandstone, shale, and carbonate rock samples. Other samples such as salt rock, gypsum rock, and tuff can also be used as reference.
2、 Main technical parameters
Work pressure: 0-50MPa
Working temperature: Room temperature -150 ℃
Core specification: φ 25 × 25-80mm
Power supply: AC 220V
Power: 3KW
3、 The main structural components of the instrument
1. Intermediate container
Volume: 1000ml, Pressure: 50MPa, Model: ZR-2
2. Piston container
Volume: 1000ml, Pressure: 50MPa, Model: ZR-3
3. Pressure transmitter
Range: 60MPa, accuracy: 0.25 level
4. Humidifier
Volume: 1000ml, pressure: 50MPa
5. Constant speed and pressure pump
Working pressure: 60MPa, flow rate 0-20ml/min
6. Core clamp
Working pressure: 50MPa, temperature: room temperature~150℃
Core specification: φ 25 × 25-80mm
7. Environmental pressure tracking pump
Work pressure: 60MPa, automatic tracking of injection pressure.
8. Thermostatic box
Working temperature: Room temperature -150 ℃
Temperature control accuracy: ± 0.5 ℃
9. Monitor
Bubble detection.
10. Data collection and monitoring system
Automatically monitor bubbles, collect breakthrough pressure, and calculate breakthrough time.
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