Gases are entrained in drilling fluids from the well bore during normal drilling operation as well as during “kick” or well control situations these gases present safety hazards and create operational problems, in event of hazardous gases being present, it is desirable to localize the point where gas is released from the mud by installing a vacuum degasser.
In order to separate the gas effectively in the drilling, so an efficient degasser is essential to the safe and productive drilling operations. Since gas is practically insoluble in water, it is relatively easy to detect and remove. By comparison, gas is easily soluble in oilbase muds – its detection is more difficult as well as its removal. Regardless of the composition of the gas encountered, gas existing in the mud can decrease efficiencies in rig pumps, centrifugal pumps and associated operational equipment. The goal is to “Keep the pumps Operating”.
Atmospheric separation relies on impact, turbulence, agitation or a combination of these techniques to separate gas from the fluid. It possesses few moving parts and have low initial cost. But their efficiency is limited and they may not be suitable for all conditions.
Differently, Vacuum degasser has more moving parts and higher initial cost. This is due to the vacuum pump and attendant components primarily. They are, however, much more efficient. Because gas volume is inversely proportional to pressure, gas bubbles in the fluid is more rapid under pressure. By combining impact and turbulence these features with low pressure, modern vacuum degassers proves fast and highly effective in the aspect of separating dissolved gas.
As the purification equipment of oil & gas drilling fluids solids control system, vacuum degasser actually is used to remove little invaded gas in drilling mud. It will be set between shale shaker and mud cleaner/desander. Vacuum degasser separates the gas that migrates into the drilling fluids by the function of vacuum pump and vacuum tubular tank. If the gases does not been separated from the drilling fluids, it may cause well kicked, and increase the total financial cost and timing cost of the drilling project. If there is no gas migrating into the drilling fluids, the vacuum degasser would work as a big mud agitator, to enhance the shearing rate of the drilling mud.
KOSUN vacuum degasser
KOSUN vacuum degasser is a special-purpose device for the treatment of gas-cut drilling fluids.It can be applied to various mud purification systems to recover mud gravity, stabilize mud viscosity and reduce drilling cost. At the same time it can be used as a heavy-power agitator in gas free mud.
Features & Benefits of Vacuum Degasser:
1. Self contained unit without needing for centrifugal pump to feed drilling mud.
2. Eliminate corrosion and reduce repair and maintenance costs.
3. Short footprint can be installed in smaller spaces.
4. Degasser can act as a big agitator for the drilling mud, which helps the treatment for desander and desilter.
KOSUN machinery exclusively handling oil & gas drilling fluids solid control equipment and solid control system, as well as varieties of chemical agent, such as shale shaker, desander, vacuum degasser, electrical ignition device, mud cleaner, sand pump, mud agitator, etc. KOSUN has been serving the oil & gas industry for 20 years since its establishment in 1992, and has obtained good experience on equipment manufacturing & oilfield service. Any further information, please feel free to contact us.
