Preface |
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v | |
About the Authors |
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vii | |
Chapter 1 Introduction to Rock Properties |
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1 | (46) |
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1 | (1) |
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1.2 Porosity and Saturation |
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2 | (5) |
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1.2.1 Definition of Porosity |
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2 | (2) |
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1.2.2 Heterogeneity and "Representative Elementary Volume" |
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4 | (2) |
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6 | (1) |
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1.3 Permeability and Darcy's Law |
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7 | (11) |
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7 | (4) |
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1.3.2 Units of Permeability |
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11 | (1) |
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1.3.3 Relationship between Permeability and Pore Size |
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12 | (2) |
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1.3.4 Permeability of Layered Rocks |
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14 | (3) |
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1.3.5 Permeability Heterogeneity |
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17 | (1) |
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1.4 Surface Tension, Wettability and Capillarity |
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18 | (14) |
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18 | (3) |
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21 | (1) |
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22 | (3) |
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25 | (2) |
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1.4.5 Oil-Water Transition Zone |
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27 | (3) |
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1.4.6 Leverett J-Function |
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30 | (2) |
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1.5 Two-Phase Flow and Relative Permeability |
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32 | (3) |
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1.5.1 Concept of Relative Permeability |
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32 | (2) |
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1.5.2 Irreducible Saturations |
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34 | (1) |
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1.6 Electrical Resistivity |
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35 | (6) |
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1.7 Fluid and Pore Compressibility |
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41 | (3) |
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1.7.1 Fluid Compressibility |
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41 | (1) |
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1.7.2 Pore Compressibility |
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42 | (2) |
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44 | (1) |
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45 | (2) |
Chapter 2 Introduction to Enhanced Recovery Processes for Conventional Oil Production |
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47 | (62) |
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2.1 Introduction: Definition, Techniques and the Global Role of EOR |
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47 | (6) |
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2.1.1 The Aims of this Module |
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47 | (1) |
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2.1.2 Definitions and Techniques |
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48 | (2) |
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2.1.3 The Role of EOR in Current and Future Global Oil Production |
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50 | (3) |
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2.2 Enhancing the Recovery Factor |
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53 | (14) |
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2.2.1 The Recovery Factor |
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53 | (2) |
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2.2.2 Limits on Microscopic Displacement Efficiency |
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55 | (4) |
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2.2.3 Limits on Macroscopic Displacement Efficiency |
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59 | (8) |
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67 | (25) |
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2.3.1 Phase Equilibrium for Gas Drives |
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68 | (11) |
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2.3.2 Transport in Two-Phase Multi-Component Systems |
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79 | (6) |
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2.3.2.1 Review of the Buckley-Leverett solution |
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80 | (2) |
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2.3.2.2 Two-component, two-phase displacement |
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82 | (3) |
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2.3.3 Fractional Flow Theory and Water Alternating Gas Injection |
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85 | (5) |
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90 | (2) |
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2.3.4.1 Fractional flow theory applied to three-phase flow |
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90 | (1) |
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2.3.4.2 Models for three-phase relative permeability |
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91 | (1) |
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2.4 Chemical EOR: Polymers and Low Salinity Flooding |
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92 | (8) |
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93 | (4) |
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2.4.2 Low Salinity Water Flooding |
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97 | (3) |
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2.5 Practical Considerations |
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100 | (4) |
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104 | (5) |
Chapter 3 Numerical Simulation |
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109 | (100) |
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109 | (5) |
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109 | (1) |
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110 | (2) |
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110 | (1) |
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3.1.2.2 Comprehensive models |
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111 | (1) |
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111 | (1) |
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3.1.3 Mathematical Models |
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112 | (1) |
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112 | (1) |
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3.1.5 Models as Comparative Tools |
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113 | (1) |
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3.2 Equations and Terminology |
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114 | (17) |
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114 | (1) |
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115 | (2) |
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3.2.3 Diffusivity Equation |
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117 | (2) |
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119 | (2) |
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3.2.5 Implicit and Explicit Formulation |
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121 | (4) |
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3.2.6 Dispersion and Weighting |
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125 | (1) |
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3.2.7 Nonlinearity and Outer Iterations |
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126 | (1) |
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127 | (4) |
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3.3 Buckley-Leverett Displacement |
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131 | (3) |
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134 | (3) |
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134 | (1) |
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3.4.1.1 Reservoir description |
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134 | (1) |
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134 | (1) |
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134 | (1) |
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135 | (1) |
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135 | (1) |
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135 | (2) |
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3.4.2.1 Cross-sectional models |
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136 | (1) |
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136 | (1) |
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3.4.2.3 Cylindrical single well models |
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137 | (1) |
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3.4.2.4 Full field models |
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137 | (1) |
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137 | (10) |
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139 | (1) |
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3.5.2 Cylindrical Systems |
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140 | (1) |
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141 | (1) |
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3.5.4 Special Connections |
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142 | (2) |
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3.5.5 Corner Point Representation |
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144 | (1) |
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3.5.6 Local Grid Refinement |
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144 | (1) |
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145 | (1) |
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3.5.8 Surface Constraints |
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146 | (1) |
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147 | (1) |
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147 | (14) |
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148 | (9) |
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3.6.1.1 Routine core analysis |
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148 | (2) |
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3.6.1.2 Geocellular up-scaling |
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150 | (1) |
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3.6.1.3 Special core analysis |
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150 | (7) |
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157 | (3) |
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160 | (1) |
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3.7 Model Relative Permeability |
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161 | (13) |
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161 | (4) |
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3.7.2 Three-Phase Relative Permeability |
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165 | (1) |
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3.7.3 Vertical Equilibrium |
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166 | (2) |
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3.7.4 Pseudo Relative Permeability |
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168 | (5) |
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3.7.5 Well Pseudo Relative Permeability |
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173 | (1) |
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174 | (1) |
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3.8 Model Capillary Pressure |
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174 | (5) |
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3.8.1 Manipulation of Capillary Pressure |
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176 | (2) |
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3.8.2 Vertical Equilibrium |
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178 | (1) |
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179 | (1) |
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3.9 Fluid Properties and Experiments |
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179 | (11) |
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3.9.1 Single Component Properties |
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180 | (1) |
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3.9.2 Properties of Mixtures |
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180 | (2) |
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182 | (1) |
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183 | (3) |
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186 | (4) |
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3.9.5.1 Constant composition expansion |
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186 | (1) |
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3.9.5.2 Differential liberation |
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186 | (4) |
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3.9.5.3 Constant volume depletion |
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190 | (1) |
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190 | (1) |
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3.10 Model Fluid Properties |
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190 | (7) |
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3.10.1 Black Oil Fluid Properties |
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190 | (3) |
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193 | (3) |
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3.10.3 Spatial Variations |
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196 | (1) |
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3.10.3.1 Variable bubble point |
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197 | (1) |
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3.10.3.2 Variable Api gravity |
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197 | (1) |
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197 | (4) |
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3.11.1 Hurst Van Everdingen |
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198 | (1) |
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199 | (1) |
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199 | (1) |
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200 | (1) |
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3.12 Model Well and Production Data |
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201 | (8) |
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201 | (2) |
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3.12.2 Production Control Data |
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203 | (2) |
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203 | (1) |
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204 | (1) |
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205 | (1) |
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3.12.3 Practical Considerations |
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205 | (6) |
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205 | (1) |
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206 | (3) |
Chapter 4 History Matching |
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209 | (36) |
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209 | (2) |
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4.2 Context of the History Match Study |
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211 | (4) |
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4.2.1 The Business Context of the Study |
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211 | (1) |
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4.2.2 Relation to Reservoir Development/Management |
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212 | (1) |
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4.2.3 The Work Flow Context of the Study |
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213 | (2) |
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4.3 Static and Dynamic Data/Static and Dynamic Models |
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215 | (2) |
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4.3.1 Static and Dynamic Data |
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215 | (1) |
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4.3.2 Dynamic Data and the Static Model |
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216 | (1) |
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4.4 Issues Related to Reservoir Simulation/Up-Scaling |
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217 | (2) |
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4.4.1 Issues Related to Grid Size/Numerical Resolution |
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217 | (1) |
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4.4.2 Issues Related to Representation Rate Variation With Time |
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217 | (1) |
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4.4.3 Issues Related to Representation of Well In-Flow in the Simulator |
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218 | (1) |
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4.5 Details of a "Conventional" Deterministic History Match Study |
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219 | (24) |
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4.5.1 Preparatory Work-Definition of Aims |
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219 | (1) |
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4.5.2 Data Review/Well Histories |
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219 | (2) |
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4.5.3 Preparatory Work-Data Acquisition Opportunities |
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221 | (1) |
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4.5.4 Preparatory Work-"Classical" Reservoir Engineering Calculations/Part Field Models |
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221 | (1) |
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4.5.5 Review of the Simulation Model (and Geological Model) |
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222 | (1) |
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4.5.6 Outline of Approach to Matching the Model |
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223 | (1) |
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4.5.7 How Well Should We Aim to Match Data? |
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224 | (2) |
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4.5.8 Assessing the "Goodness" of a Match |
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226 | (1) |
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4.5.9 Well Controls During the History Match |
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227 | (2) |
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4.5.10 Initial Simulation Runs |
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229 | (1) |
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4.5.11 Review of Scope for Changing Model Input Parameters |
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230 | (1) |
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231 | (1) |
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4.5.13 The History Matching Process |
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232 | (1) |
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233 | (3) |
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4.5.14.1 Pressure match example |
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234 | (2) |
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4.5.15 Matching Fluid Movement |
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236 | (2) |
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4.5.16 Matching Water Movement-Example 1 |
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238 | (2) |
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4.5.17 Matching Water Movement-Example 2 |
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240 | (1) |
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4.5.18 Matching Water Movement-Example 3 |
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241 | (1) |
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4.5.19 Matching Well Pressures/Detailed Well Performance |
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242 | (1) |
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4.5.20 The Transition to Prediction |
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243 | (1) |
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4.6 Automatic and Computer-Assisted History Matching/Multiple Matches |
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243 | (1) |
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244 | (1) |
Index |
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245 | |