PGE312_Spring_2011_HW6

# PGE312_Spring_2011_HW6 - t Mole Fraction Methane 0.89...

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PGE 312 SPRING 2011 Physical and Chemical Behavior of Petroleum Fluids I Homework 6 Due in class on Monday, April 4 Chapter 6 of McCain Problems 6-4, 6-9, 6-17, 6-20, 6-22, 6-23, 6-26, 6-30. Special Problems (SP) SP 1 . A newly discovered dry gas reservoir has the following properties: Reservoir area = 3 miles x 2 miles Reservoir thickness = 500 ft Initial reservoir pressure = 6000 psia Reservoir temperature = 180˚ F Gas gravity = 0.70 Average porosity = 28% Average water saturation = 16% Calculate the initial gas in place in scf.

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SP 2 . A dry gas reservoir of unknown areal extent has a porosity of 8% and an average thickness of 100 ft. The reservoir temperature is 200˚F and the initial pressure is 8000 psia. The initial water saturation is 18%. A gas analysis shows that the gas has the following composition: Componen
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Unformatted text preview: t Mole Fraction Methane 0.89 Ethane 0.06 Propane 0.03 N-Butane 0.02 1.00 The production history for this reservoir is as follows: Cumulative Production Reservoir Pressure (scf) (psia) 0 8000 50x10 6 7500 100x10 6 6900 150x10 6 6400 200x10 6 5600 a. Determine the initial gas in place in scf. b. If the abandonment pressure is 500 psia, determine the recovery factor for the gas reservoir as a % of initial gas in place. c. Estimate the area of the reservoir in acres. Teaching Assistant Mr. Gurpreet Singh CPE 3.186 Gurpreet Singh [[email protected]] Office Hours: Mon, Wed: 2:00 PM to 4:00 PM. Thurs, Fri: 2:00 PM to 5:00 PM. Please consult the Guidelines for Preparing Homework for PGE 312 and abide by them. Any homework paper that does not meet the minimum requirements specified in the guidelines will be rejected....
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## This note was uploaded on 04/04/2011 for the course PGE 312 taught by Professor Peters during the Spring '08 term at University of Texas.

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PGE312_Spring_2011_HW6 - t Mole Fraction Methane 0.89...

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