For each of 18 preserved cores from oil-wet carbonate reservoirs,the amount of residual
Chapter 7, Problem 49(choose chapter or problem)
For each of 18 preserved cores from oil-wet carbonate reservoirs,the amount of residual gas saturation after a solventinjection was measured at water flood-out. Observations, inpercentage of pore volume, were23.5 31.5 34.0 46.7 45.6 32.541.4 37.2 42.5 46.9 51.5 36.444.5 35.7 33.5 39.3 22.0 51.2(See Relative Permeability Studies of Gas-Water FlowFollowing Solvent Injection in Carbonate Rocks, Soc. ofPetroleum Engineers J., 1976: 2330.)a. Construct a boxplot of this data, and comment on anyinteresting features.b. Is it plausible that the sample was selected from a normalpopulation distribution?c. Calculate a 98% CI for the true average amount of residualgas saturation.
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