A drillstring is composed of 11,000 ft. of 5 1/2-in. 24.7-lbm/ft. drillpipe and 1500 ft. of drill collars having a 9-in. and 3.5-in. ID and OD respectively. Using a duplex double-acting pump with a 6-in liners, 2.5-in. rods, and 16-in. strokes. 1. What is the total capacity of the drillstring in bbl? What is the total number of pump cycles required to pump mud within the drillstring-bit and from the bottom-surface? (round trip) What is the displacement of the drill collars in bbl/ft Displacement of the drill pipe in bbl/ft. (neglect tool joints)
A drillstring is composed of 11,000 ft. of 5 1/2-in. 24.7-lbm/ft. drillpipe and 1500 ft. of drill collars having a 9-in. and 3.5-in. ID and OD respectively. Using a duplex double-acting pump with a 6-in liners, 2.5-in. rods, and 16-in. strokes. 1. What is the total capacity of the drillstring in bbl? What is the total number of pump cycles required to pump mud within the drillstring-bit and from the bottom-surface? (round trip) What is the displacement of the drill collars in bbl/ft Displacement of the drill pipe in bbl/ft. (neglect tool joints)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A drillstring is composed of 11,000 ft. of 5 1/2-in. 24.7-lbm/ft. drillpipe and 1500 ft. of drill collars having a 9-in. and 3.5-in. ID and OD respectively. Using a duplex double-acting pump with a 6-in liners, 2.5-in. rods, and 16-in. strokes.
1. What is the total capacity of the drillstring in bbl?
What is the total number of pump cycles required to pump mud within the drillstring-bit and from the bottom-surface? (round trip)
What is the displacement of the drill collars in bbl/ft
Displacement of the drill pipe in bbl/ft. (neglect tool joints)
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