4.51 A 50-bbl kick is taken at a depth of 14,000 ft while drilling with a...
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4.51 A 50-bbl kick is taken at a depth of 14,000 ft while drilling with a 15-lbm/gal mud. After the pressures stabilized, an initial drillpipe pressure of 1,200 psig and an initial casing pressure of 2,600 psig were recorded. The drillstring is composed of 13,000 ft of drillpipe having an internal capacity of 0.01422 bbl/ft and 1,000 ft of drill collars having an internal capacity of 0.0087 bbl/ft, A pump pressure of 1,100 psig previously was recorded at a reduced rate of 25 strokes/min. The pump factor is 0.24 bbl/stroke. a. Compute a drillpipe pressure schedule for the circulate-and-weight method of well control. b. Compute a drillpipe pressure schedule for the wait-and-weight method of well control. c. Compute the equivalent density at the casing seat of 13,000 ft just after the well was shut in. Answer: 18.9 Ibm/gal. 4.51 A 50-bbl kick is taken at a depth of 14,000 ft while drilling with a 15-lbm/gal mud. After the pressures stabilized, an initial drillpipe pressure of 1,200 psig and an initial casing pressure of 2,600 psig were recorded. The drillstring is composed of 13,000 ft of drillpipe having an internal capacity of 0.01422 bbl/ft and 1,000 ft of drill collars having an internal capacity of 0.0087 bbl/ft, A pump pressure of 1,100 psig previously was recorded at a reduced rate of 25 strokes/min. The pump factor is 0.24 bbl/stroke. a. Compute a drillpipe pressure schedule for the circulate-and-weight method of well control. b. Compute a drillpipe pressure schedule for the wait-and-weight method of well control. c. Compute the equivalent density at the casing seat of 13,000 ft just after the well was shut in. Answer: 18.9 Ibm/gal.
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Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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