# Homework 5_Solution - Name: Solution PGE 312 Physical and...

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Name: SolutionPGE 312Physical and Chemical Behavior of FluidsSpring 2015Homework 5Due Friday, February 27, 2015 by 1:00 PM (end of class)1. An oil is 32° API.What is its specific gravity and density? (10 points)2. A gas is 0.73 specific gravity.What is its density and apparent molar weight? (10 points)3.In a pipeline, gas from two separate reservoirs is mixed together in a ratio of 61mol-%reservoir A and 39mol-% reservoir B.Reservoir A has specific gravity of .92.Reservoir B hasspecific gravity of 0.73.What is the apparent molar mass of the gas that flows in the pipeline?(10 points)
4.A reservoir contains undersaturated oil.A barrel of fluid at reservoir conditions weights 320lbs.The Bois 1.13, and GOR is 1200 scf/STB.The gas specific gravity is 0.89.What is the°API of a stock tank barrel? (20 points)Mass of one reservoir barrel:5. The compressibility of an undersaturated oil is 17*10-6psi-1.Initially, the specific volume ofthe oil is 0.02 ft3/lbs.Then, fluid pressure is lowered by 300 psi.
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