دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a short length of pipe (a nipple) installed on top of the blowout preventer. The top end of the nipple is flared, or belled, to guide drill tools into the hole and usually has side connections for the fill line and mud return line.

a funnel shaped pipe at the top of the casing that guides tool string entry and may have a side port for fluid pumping.

n: The large-diameter metal pipe that connects the bell nipple under the rotary table to the possum belly at the mud tanks. The flowline is simply an inclined, gravity-flow conduit to direct mud coming out the top of the wellbore to the mud surface-treating

the flow connection from the wellhead to the separation facility, pipeline or storage unit.