A bell nipple is a section of pipe with a flared top, fitted to the top of the blowout preventers that the flow line attaches to via a side outlet, to allow the drilling fluid to flow back over the shale shakers to the mud tanks. See drilling rig (petroleum) for a diagram.
A bell nipple is a section of pipe with a flared top, fitted to the top of the blowout preventers that the flow line attaches to via a side outlet, to allow the drilling fluid to flow back over the shale shakers to the mud tanks. See drilling rig (petroleum) for a diagram.
Source: Wikipedia "Bell nipple" · CC BY-SA 4.0
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