The following data pertain to an oil formation: F vs. o rela- tion given by Fig....

 

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The following data pertain to an oil formation: F vs. o rela- tion given by Fig. 1.10%; I vs. S relation given by Fig. 1.18; formation resistivity measured in situ by an appropriate log- ging device=7 N.m; formation water resistivity determined from water sample chemical analysis=0.01 m; and forma- tion porosity from an appropriate logging device=17%. Give your best estimate of the formation oil saturation. 1000 E ffective Overburden 2000 psi 1.42 $2.08 100 Room Conditions 1. 42 F = 1.83 10 a = 1.42 1.0 0.01 0.1 1.0 POROSITY, FRACTION Fig. 1.10-Example plot of resistivity factor vs. porosity plot (from Ref. 10). FORMATION RESISTIVITY FACTOR 1000 100 1.00 Sw l.65 10 1.0 0.01 0.1 1.0 WATER SATURATION, FRACTION Fig. 1.18-Example plot of resistivity index vs. water satura- tion (from Ref. 10). FORMATION RESISTIVITY INDEX The following data pertain to an oil formation: F vs. o rela- tion given by Fig. 1.10%; I vs. S relation given by Fig. 1.18; formation resistivity measured in situ by an appropriate log- ging device=7 N.m; formation water resistivity determined from water sample chemical analysis=0.01 m; and forma- tion porosity from an appropriate logging device=17%. Give your best estimate of the formation oil saturation. 1000 E ffective Overburden 2000 psi 1.42 $2.08 100 Room Conditions 1. 42 F = 1.83 10 a = 1.42 1.0 0.01 0.1 1.0 POROSITY, FRACTION Fig. 1.10-Example plot of resistivity factor vs. porosity plot (from Ref. 10). FORMATION RESISTIVITY FACTOR 1000 100 1.00 Sw l.65 10 1.0 0.01 0.1 1.0 WATER SATURATION, FRACTION Fig. 1.18-Example plot of resistivity index vs. water satura- tion (from Ref. 10). FORMATION RESISTIVITY INDEX

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