Page 9 - PVT Property Correlations

viii Contents

7. Black Oils 147
PVT Properties for Black Oils 147
Specific Gravity of Oil 148
Bubble-Point Pressure 148
Formation Volume Factor of Oil 149
Solution Gas Oil Ratio 149
Oil Density 151
Oil Viscosity 152
Compressibility of Oil 153
Handling PVT Properties for Black Oils 154
Field Data for Oil PVT Correlations 160
Sequence of Calculations 166
Applications of Oil PVT Correlations 166
Problem 1—Estimating Input Data for Oil Correlations 166
Problem 2—Calculation of PVT Properties for a Black Oil 168
Problem 3—Effect of Preknowledge of Bubble-Point Pressure 170
Problem 4—Shifting Calculated PVT Properties 171
Nomenclature 174
References 174
Further Reading 179
Problems 180

8. Low Gas Oil Ratio Oils 183
PVT Properties for Low Gas Oil Ratio Oils 187
Low Gas Oil Ratio Oil Viscosity 187
Dead and Live Oil Viscosity 188
Handling PVT Properties for Low Gas Oil Ratio Oils 189
Sequence of Calculations 191
Engineering Low Gas Oil Ratio Oils 191
Problem 1—Calculating PVT Properties for
Low Gas Oil Ratio Oil Reservoirs 191
Nomenclature 199
References 199
Further Reading 200
Problems 200

9. Selection of PVT Correlations 203
Selection of PVT Oil Properties Correlations 204
Correlation Selection Based on Geographical Location 204
Correlation Selection Based on Type of Fluid 205
Correlation Selection Based on Required PVT Model (Application) 205
Correlation Selection Based on Data Range and Ranking 205
Correlation Selection Based on Expert System or Set of Rules 206