HW_11_Solution - PGE 312 SPRING 2006 Physical and Chemical...

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PGE 312 SPRING 2006 Physical and Chemical Behavior of Petroleum Fluids I Solution to Homework 11 13.9 j j j j j g j j j x K y and K n z x * 0 . 1 ) 1 ( 1 = = - + = - Flash calculations for reservoir fluid at separator conditions: Component z j M j K j x j y j M j y j Methane 0.3827 16.043 26 0.0285 0.7414 11.8950 Ethane 0.0846 30.07 4.5 0.0309 0.1390 4.1798 Propane 0.0742 44.097 1.3 0.0646 0.0839 3.7019 i-Butane 0.0105 58.123 0.48 0.0142 0.0068 0.3950 n-Butane 0.0381 58.123 0.34 0.0567 0.0193 1.1202 i-Pentane 0.0138 72.15 0.14 0.0241 0.0034 0.2434 n-Pentane 0.0209 72.15 0.11 0.0375 0.0041 0.2973 Hexane 0.0261 86.177 0.033 0.0502 0.0017 0.1429 Heptane + 0.3491 238 0.0004 0.6935 0.0003 0.0660 Total 1.0000 1.0000 1.0000 22.041 5032 . 0 4968 . 0 1 1 = = - - L g n n a. Composition of Separator gas is shown above as y i b. Specific gravity of separator gas = 0.7602
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Calculation of reservoir fluid density Compone nt x j M j M j x j Liquid density at std conditions (lb/ cuft) Liquid Volume (cuft) Methane 0.3827 16.043 6.140 Ethane 0.0846 30.07 2.544 Propane 0.0742 44.097 3.272 31.62 0.1 i-Butane 0.0105 58.123 0.610 35.12 0.02 n-Butane 0.0381 58.123 2.214 36.42 0.06 i-Pentane 0.0138 72.15 0.996 38.96 0.03 n-Pentane 0.0209 72.15 1.508 39.36 0.04 Hexane 0.0261 86.177 2.249 41.4 0.05 Heptane + 0.3491 238 83.086 54.13 1.53 Total 1.000 102.619 1.83 C 3+ density = 51.20 lbm/cu ft cuft lb W W W W W W W W W Po C Po Co C mix N C mix C / 13 . 48 94 . 0 % 708 . 2 % 983 . 5 3 2 1 2 2 2 1 1 = = = - - + = = = + ρ Pressure adjustment = +0.7 lbm/cu ft Temperature adjustment = -2.4 lbm/cu ft Liquid density = 46.43 lbm/cu ft
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Flash calculations for reservoir fluid at stock tank conditions Component z j M j K j x j y j M j y j Methane 0.0285 16.043 170 0.0016 0.2683 4.3043 Ethane 0.0309 30.07 27 0.0085 0.2300
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This homework help was uploaded on 04/06/2008 for the course PGE 312 taught by Professor Peters during the Spring '08 term at University of Texas.

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HW_11_Solution - PGE 312 SPRING 2006 Physical and Chemical...

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