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Exam1KeyPGE323k

# Exam1KeyPGE323k - PGE323k Reservoir Engineering Primary...

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PGE323k Reservoir Engineering: Primary Hydrocarbon Recovery Exam 1 Key Open book, notes . Read each problem carefully and show all work. Turn in the exam sheet. 1. PVT . (10 points) Water-saturated air will form water droplets or dew when cooled. Sketch (no calculation required) this cooling on a P-T diagram. Be sure to show the initial I and final F (or cooled) state on your diagram. Grading: 3 Correct P-T diagram 4 Initial states on saturation line 4 Final state in two-phase region 2. Statics . Some reservoirs in Oman are lithostatically loaded initially. That is, the fluid pressure is given by the weight of the rock column rather than the weight of a water column. Take the density of rock to be 2.65 g/cm 3 in this exercise. a. (15 points) Sketch (no calculation required) the static pressure profile (pressure vs. depth from the water surface) in an offshore reservoir that is lithostatically loaded. See diagram below.

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Grading: 5 P increases with depth 5 Water gradient less than rock gradient 5 Water above reservoir b. (15 points)
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