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# HW2Key - Homework 2 Key Fundamental of Reservoir...

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Unformatted text preview: Homework 2 Key Fundamental of Reservoir Engineering 10 points The purpose of this homework is to give you some practice with the three basic concepts of porosity, permeability, and compressibility. Above all it is to give practice in working with units and units conversion. 1. Units Conversion and Handy Factors. a. Show that the density head for water ρ w g is 9.8 kPa/m when written in SI units. ρ w g = 1 g cm 3 9.8 m s 2 10 6 cm 3 1m 3 1kg 10 3 g 1 N 1 kg - m s 2 = 9800 N m 3 ρ w g = 9800 N m 3 1Pa 1 N m 2 1 kPa 10 3 Pa = 9.8 kPa m b Show that the density head for water ρ w g is 0.433 psi/ft when written in petroleum engineering units. ρ w g = 9.8 kPa m 10 3 Pa 1 kPa 1MPa 10 6 Pa 14.7 psi 0.1 MPa 0.305 m 1ft = 0.439 psi ft The slight difference is because of the approximation of the conversion factor between psi and MPa. The density for pure water is 1 g/cm 3 . 2. Porosity. Work exercises 3-1 through 3-3 at the end of Chapter 3 of Walsh and Lake....
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HW2Key - Homework 2 Key Fundamental of Reservoir...

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