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Compute the equivalent density below the casing seat at 4,000 ft when a mud having a density of 10 Ibm/gal and a gel strength
Compute the equivalent density below the casing seat at 4,000 ft when a mud having a density of 10 Ibm/gal and a gel strength of 70 lbm/100 sq ft just begins to flow. The casing has an internal diameter of 7.825 in., and the drillpipe has an external diameter of 5 in. Discuss how the pressure required to start circulation can be reduced. Answer: 11.6 Ibm/gal.
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A First Course In Probability
Authors: Sheldon Ross
9th Edition
978-9332519077, 9332519072
