George V. Chilingar, PhD, is an Emeritus Professor of Engineering at the University of Southern California, Los Angeles, CA. He is one of the most well-known petroleum geologists in the world and the founder of several prestigious journals in the oil and gas industry. He has published over 70 books and 500 articles and has received over 100 awards over his career.

Mohammed Haroun, PhD, graduated from the University of Southern California and is known for his hybrid work in petroleum and environmental engineering.? He has written numerous papers, a book, and he has several patents to his name.

Preface xiii

1 Introduction to Electrokinetics 1

1.1 Factors Influencing Electrokinetic Phenomena 2

1.2 Zeta Potential and the Electric Double Layer Interaction 3

1.3 Coehn’s Rule 8

1.4 Combined Flow Rate Equation 9

1.5 Dewatering of Soils 11

1.6 Use of Electrokinetics for Stabilization of Week Grounds 13

1.7 Bioelectroremediation 14

1.8 Electrical Enhanced Oil Recovery (EEOR) 16

1.9 Improving Acidizing of Carbonates 18

1.10 Economic Feasibility 20

1.11 Releasing Stuck Drillpipe 22

1.12 Summary 23

Bibliography 24

2 Reduction of Contaminants In Soil and Water By Direct Electric Current 33

2.1 Introduction 33

2.2 Overview of Direct Electric Current in Subsurface Environmental Mitigation 34

2.3 Electrokinetically-Aided Environmental Mitigation 54

2.4 Transport and Extraction of Crude Oil 83

2.5 Summary and Conclusions 92

References 94

3 Application of Electrokinetics for Enhanced Oil Recovery 103

3.1 Introduction 103

3.2 Petroleum Reservoirs, Properties, Reserves, and Recoveries 105

3.3 Relative Permeability and Residual Saturation 107

3.4 Enhanced Oil Recovery 109

3.5 Electrokinetically Enhanced Oil Recovery 110

3.6 DCEOR and Energy Storage 112

3.7 Electro-chemical Basis for DCEOR 115

3.8 Role of the Helmholtz Double Layer 119

3.9 DCEOR Field Operations 126

3.10 DCEOR Field Demonstrations 132

3.11 Produced Fluid Changes 138

3.12 Laboratory Measurements 140

3.13 Technology Comparisons 144

3.14 Summary 146

Nomenclature 148

References 149

Websites 155

4 EEOR in Carbonate Reservoirs 157

4.1 Introduction 157

4.2 Electrically Enhanced Oil Recovery (EEOR) – EK Assisted WF 158

4.3 SMART (Simultaneous/Sequential Modified Assisted Recovery Techniques) 159

4.4 (SMAR EOR) Electrokinetic-Assisted Nano-Flooding/Surfactant-Flooding 161

4.5 Electrokinetics-Assisted Waterflooding with Low Concentration of HCl 166

4.6 Effect of EEOR and SMART EOR in Carbonate Reservoirs at Reservoir Conditions 168

Conclusions 171

Nomenclature 172

References 173

5 Mathematical Modeling of Electrokinetic Transport and Enhanced Oil Recovery in Porous Geo-Media 177

5.1 Introduction 177

5.2 Basics of EK Transport Modeling 178

5.3 Fundamental Governing Equations 179

5.4 Mathematical Model and Solution of Ek Transport 188

5.5 EK Mass Transport Models 191

5.6 Coupling of Electrical and Pressure Gradients 194

5.7 Mathematical Modeling of EKEOR 197

5.8 Fundamental Governing Equations for EKEOR Model 197

5.9 Solution Strategy 220

5.10 Numerical Implementation 224

5.11 Summary 229

References 229

Index 237       

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