Question: Problem No. 2 (15 points) (CLOS 1 and 2) A drillstring is composed of drilling string of X bbl of Y-in, Z lbm/ft drillpipe and
Problem No. 2 (15 points) (CLOS 1 and 2) A drillstring is composed of drilling string of X bbl of Y-in, Z lbm/ft drillpipe and X1 ft of drill collars having a X2 in I.D. and X3 in O.D. Determine: a) Length of the drillpipe (Hints: Table 1.5 in your textbook). b) Displacement of the drill pipe in bbl/ft (hints: mud displacement through BF calculation). c) Change in fluid level in a 4' x 4' trip tank; assume that the hole is filled from the trip tank after pulling 2 stands of drill collars.
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