PEEG 216 Reservoir Fluid Properties - Class 14 - 21&22MAR10 Analysis 2 + handout

PEEG 216 Reservoir Fluid Properties - Class 14 - 21&22MAR10 Analysis 2 + handout
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Reservoir Fluid Properties PEEG 216 PEEG 216 RESERVOIR FLUID PROPERTIES Dr. John Williams Class 14
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Reservoir Fluid Properties PEEG 216 Outline Notice about planning Second presentation on Compositional Analysis Hand out Support Document Homework
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Reservoir Fluid Properties PEEG 216 Planning notice Mid-term exam Next quiz I will be teaching an industry course on 7 th and 8 th April. Mr. mimoune may take these classes.
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Reservoir Fluid Properties PEEG 216 Summary of Last Class Compositional analysis of petroleum fluids is complicated. Pressurised samples are usually separated into sub- samples to facilitate analysis. Gas chromatography (GC) is used extensively, but distillation and other analyses can also be involved. Analyses are simplified by grouping hydrocarbons between the “normal” (straight chain) components. Some particular components may be used as “genetic” indicators of the origin of the fluid. Heavy fractions are characterised by cryoscopy and density.
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Reservoir Fluid Properties PEEG 216 Composition Conversions Compositions have units and can be inter- converted. Pure = 100 mol % = 1 000 000 ppm = mole fraction of 1 (all are based on molecules) 100 ppm = ? However, 50 mol% ≠ 50 wt% due to differences in molar masses.
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Reservoir Fluid Properties PEEG 216 Conversion from %wt to %mol Comp. Wt% (g/100g) MM (g/mol) Col2/Col3 (mol/100g) Mol% (mol/100mol) C1 32.73 16.0 2.0456 63.11 C2 14.41 30.1 0.4787 14.77 C3 10.51 44.1 0.2383
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