The Vacuum Tank Degasser targets and treats gas-cut drilling fluids within solids control systems. This critical unit quickly removes entrained gas from drilling mud, restores mud density, and stabilizes overall drilling fluid performance. It serves as an essential asset for exploration wells, ultra-deep wells, and underbalanced drilling operations, anchoring various drilling fluid circulation and purification networks worldwide.
The degasser adopts a water-ring vacuum pump operating under isothermal conditions, making it suitable for handling flammable and explosive gases while ensuring reliable operational safety.
The gas-water separator features a well-designed structure that enables efficient gas-liquid separation and keeps the exhaust pipeline unobstructed at all times.
Vacuum Tank Degasser Specifications
| Model | HCQ240 | HCQ270 | HCQ300 | HCQ360 |
| Capacity | 240m³/h | 270 m³/h | 300 m³/h | 360 m³/h |
| Vacuum degree | -0.030～0.045 MPa | -0.030—0.050MPa | -0.030—0.055MPa | -0.040—0.065MPa |
| Transmission ratio | 1.68 | 1.68 | 1.68 | 1.72 |
| Main motor power | 15 KW | 22 KW | 30 KW | 37 KW |
| Vacuum pump power | 2.2 KW | 2.2 KW | 4 KW | 5.5 KW |
| Speed | 860 RPM | 870 RPM | 876 RPM | 880 RPM |
| Gas displacement | 28 m3/h | 48 m3/h | 90 m3/h | 180 m3/h |
| Mud specific gravity | ≤2 g/cm3 | ≤2 g/cm3 | ≤2.5 g/cm3 | ≤2.5 g/cm3 |
| Degassing efficiency | ≥95% | ≥95% | ≥95% | ≥95% |
| Weight | 1100kg | 1350kg | 1650kg | 1800kg |
| Dimension(mm) | 1750×860×1500 | 2000×1000×1670 | 2250×1330×1650 | 2400×1500×1850 |
Advantages of Vacuum Tank Degasser
1. Stabilizes Drilling Fluid Performance
The vacuum degasser is specifically designed to process gas-cut drilling fluids. It rapidly removes entrained gas, restores the original mud density, and maintains stable drilling fluid properties.
2. Essential for Mud Circulation Systems
It is an indispensable component in exploration wells, ultra-deep wells, and underbalanced drilling projects. The equipment can be integrated into a wide range of drilling fluid circulation and solids control systems.
3. Reliable Safety Performance
The degasser utilizes a water-ring vacuum pump operating under isothermal conditions, making it suitable for extracting flammable and explosive gases while maintaining a high level of operational safety.
4. Well-Designed Structure
The gas-water separator delivers efficient gas-liquid separation, ensuring smooth exhaust flow and preventing vent pipeline blockages.
Applications of Vacuum Tank Degasser
- Oil and gas drilling operations
- Exploration drilling projects
- Ultra-deep well drilling
- Underbalanced drilling (UBD)
- Geothermal drilling
- Horizontal directional drilling (HDD)
- Drilling fluid recycling and purification systems
- Solids control systems for onshore and offshore rigs
Working Principle of Vacuum Tank Degasser
The Vacuum Degasser operates by utilizing the suction effect of a vacuum pump to create a negative-pressure zone inside the vacuum chamber.
Under atmospheric pressure, drilling mud enters the hollow shaft of the rotor through the suction pipe. The openings around the hollow shaft then discharge the mud and spray it onto the inner wall of the tank. The impact force and the action of the separation wheel disperse the drilling fluid into thin layers.
As the mud spreads into thin films, the process breaks and releases the entrained gas bubbles. The vacuum pump extracts the liberated gas, and the gas-water separator separates it. The separator’s vent line then safely discharges the gas, while the impeller expels the degassed drilling fluid from the tank.
Since the main motor starts first and drives the impeller at high speed, drilling fluid can only enter the tank through the suction pipe and the system cannot draw it back through the discharge outlet.
Conclusion
The Vacuum Tank Degasser is a critical component of any drilling fluid solids control system. By efficiently removing entrained gas from drilling mud, it helps maintain mud density, improve well control, enhance drilling safety, and optimize overall drilling performance. Its reliable design, safe operation, and compatibility with various drilling applications make it an ideal choice for modern drilling operations worldwide.
