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Guidelines when using vacuum degassers

2013-09-14

1. A vacuum degasser should discharge drilling fluid into a downstream tank whose skid is lower than the surface of the drilling fluid, the vent line should at least lead the gas exhausts upstream directly to the fluid surface.

2. At the same time some drilling fluid from the downstream tank flow back into the suction tank of a vacuum degasser, some other fluid also overflow evenly from the suction tank into the downstream tank, so handling capacity of a vacuum degasser should be larger than the volume of a sand tank or handling capacity of a shale shaker.
Whether the gas is removed or not can be settled through measuring the density of drilling fluid entered in and out of the vacuum degasser.
3. The tail of a vent pipe should be placed in a safe area and keep a safe distance from the well and mud pit.