A flow line, used on a drilling rig, is a large diameter pipe (typically a section of casing) that is connected to the bell nipple (under the drill floor) and extends to the possum belly (on the mud tanks) and acts as a return line, (for the drilling fluid as it comes out of the hole), to the mud tanks.
Read more about Flow Line: Flow Line Components, Stinger Line
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—William Shakespeare (1564–1616)
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Poets who wrote great poems, one by one,
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