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 oil-based muds to detect and remove it are both more difficult. 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”.