Question: 3. Consider a single rate, single phase pressure drawdown test run in an oil well with the following characteristics: q0=250 STB/D, 00.8cp,B0=1.136 RB/STB, c0=17.0106psi1,=0.039,h=69ft,Pi=4412 psi

3. Consider a single rate, single phase pressure drawdown test run in an oil well with the following characteristics: q0=250 STB/D, 00.8cp,B0=1.136 RB/STB, c0=17.0106psi1,=0.039,h=69ft,Pi=4412 psi and rw=0.198ft. Last flowing time =460hr. From the test data given in Table Q3 below, estimate: a. Formation permeability; b. Skin factor; - c. Pressure drop across the skin; d. Flow efficiency; [4 Marks] [4 Marks] [4 Marks] e. Reservoir pore volume. [4 Marks] [4 Marks] HINT: Plot (P1Pwi) vs Log time; plot log(P1Pwi) vs Log time; Plot Pwi vs time; determine time at the beginning and end of the transient period. . [10 Marks]

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