What is the annular velocity at 110 SPM on one pump, opposite:
a. Drill Collars/Open Hole (AV0h/dc) _ft/min b. Drill Pipe/Open Hole (AV0H/DP) _ft/min c. Drill Pipe/Casing (AVCSG/DP) _ft/min
The annular velocity defines the average velocity at which the mud passes through a specific annular space and is normally expressed in units of ft/min.
Annular Velocity( AV), ft/min
Annular Capacity, bbl/ft Q
The following annular velocities opposite specific intervals will be based on pump output at 110 SPM and 94% volumetric efficiency.
a. Drill Collars/Open Hole, AV0h/dc Q
AnnOH/DC = (8'5]2 (6'5)2 = 0.02914 bbl/ft OH/DC 1029.4
am (7.634 bbl/min) ftlmin
b. Drill Pipe Open Hole, AVOH/DP Q
OH/DP Ann nOH/DP
c. Casing/Drill Pipe, AVCSG/DP
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