HWK 4 solution - PGE 362 Homework 4 Solution Due at the...

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PGE 362 Homework 4 Solution Due at the start of lecture on March 2. (1) (+3 pts) Using the Hagedorn and Brown correlation of section 7-4.3 in the text please predict the average fluid density for the following conditions. Using Figure 7-9, what is the flow regime? l g 2.441" 100 STB/Day 10,000 MScf/Day 0.78 0.65 =74 dynes/cm 2000 psi 150 deg F l g D q q p T γ γ σ = = = = = = = Hint: This is not bubble flow. The velocities must be in situ velocities, not at standard conditions. Use the PPS software to predict fluid properties. First calculate the in situ flow rates and the superficial velocities. ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 2 6 3 2 100 STBO/day 1.306 bbl/STB 130.6 bbl/day 130.6 5.615 0.261 ft/sec 86400 / 4 2.441/12 0.84 150 460 14.73 10 10 67,390 ft /day 2000 560 67,390 24 ft/sec 86400 / 4 2.441/12 l sl g sg q u q x u π π = = = = + = = = = Second, calculate the dimensionless groups (see page 156). ( 29 ( 29 ( 29 0.25 0.25 0.25 3 38.6 1.938 0.261 0.43 74 38.6 1.938 24 39.5 74 2.441 38.6 120.872 17.76 12 74 1 0.15726 0.42 0.00105 38.6 74 vl vg D L N N N N = = = = = = = =
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Read CNL from Figure 7-12.
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