Mud Gas Separator

Mud Gas Separator is commonly called a gas-buster or poor boy degasser.

If there is a "kick" situation, this vessel separates the mud and the gas by allowing it to flow over baffle plates.

The float opens and closes a valve on the mud return line to maintain the mud-leg level.

[4] According to pedestal or base type there are: Poor boy degassers are usually named according to the vessel diameter.

The free gas then is moved into the flare line to reduce the threat of toxic and hazardous gases and the mud then discharges to the shale shaker and to the tank.