Test2Fall09 - 1 PGE 312 FALL 2009 Physical and Chemical...

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1 PGE 312 - FALL 2009 Physical and Chemical Behavior of Petroleum Fluids I Test #2, 50 Minutes Closed Book Note: It will be in your best interest to attempt all the questions. Please budget your time accordingly. Problem 1 (25 points) In the space provided on the next page, sketch the Pressure-Temperature phase diagrams for the following hydrocarbon systems: a. Retrograde gas condensate b. Undersaturated black oil c. Wet gas d. Dry gas Mark the following features on your sketch using the symbols enclosed in the brackets. 1. Initial reservoir pressure and temperature (P Ri , T R ) 2. The critical point (C) 3. The bubble point curve (BP) 4. The dew point curve (DP) 5. Separator pressure and temperature (P sep , T sep ) 6. A few iso-volume lines
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3 e. A hydrocarbon mixture is confined in a PVT cell in which the volume and pressure can be varied. The temperature of the system is constant. The mixture was compressed to an initial pressure (Pi) such that only liquid was present. The mixture was then expanded to perform a flash vaporization experiment. Sketch a graph of g n versus pressure as the pressure is reduced from P i to zero psig. Do
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This note was uploaded on 05/09/2010 for the course PGE fluids taught by Professor Peters during the Spring '10 term at University of Texas.

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Test2Fall09 - 1 PGE 312 FALL 2009 Physical and Chemical...

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