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A major contribution to the state-of-the-art for those interested in multiphase flow in well-bore, drilling cutting, hydrate and/or acid gas involvements
• The author is a leading researcher on the topics presented, and his development of gas-liquid flow pattern transition mechanism and multiphase flow models are major contributions to the multi-phase flow in wellbore
• Focuses on acid gas and hydrate involvements, offering the latest results from drilling engineering computation research
• Presents an emerging hot spot in petroleum engineering, with more multi-phase flow methodologies developed and adopted to improve the engineering process for gas & oil drilling and production
Auteur
Baojiang Sun, Cheung Kong Scholar Chair Professor, Petroleum Engineering Department , China University of Petroleum (Huadong), Shandong, China. Professor Sun has more than 15 years of experience in multi-phase flow of petroleum engineering. After years of study, concentrating on phase transition and solubility of acid gases in liquid, he has built up the innovative multi-phase flow model "seven components multi-phase flow pattern" applied in gas & oil drilling and production areas. Professor Sun has won 4 patents and 5 software copyrights, and has published over 60 articles in this area. Professor Sun has led the team to achieve "The State 863 Projects", "The National Key Technology R&D Program", "The Key Project of Natural Science Foundation", "The Major Subject of National Science and Technology". He is the winner of the Second Prize for the National Technology Progress Award in 2007, the winner of the First Prize for The Technology Progress Award of Shandong Province.
Résumé
A major contribution to the state-of-the-art for those interested in multiphase flow in well-bore, drilling cutting, hydrate and/or acid gas involvements
Contenu
Preface ix
Chapter 1 Introduction 1
1.1 Multiphase flow in the well 2
1.2 Methods 3
1.2.1 Theoretical analysis 3
1.2.2 Experimental study 3
1.2.3 Numerical simulation 4
1.3 Parameters 5
1.4 Multiphase Flow Patterns 9
1.4.1 Flow Patterns of Gas?-Liquid Flow 9
1.4.2 Gas?-Liquid Flow Pattern of Acid Gas Under Supercritical Condition 14
1.5 Multiphase Flow Models 19
1.5.1 Homogeneous Flow Model 19
1.5.2 Separated Flow Model 20
1.5.3 Drift-Flux Model 22
1.5.4 Statistical Average Model 24
Chapter 2 The Void Fraction Wave and Flow Regime Transition 25
2.1 Introduction 25
2.1.1 Bubble Coalescence and Flow Regime Transition 25
2.1.2 Void Fraction Wave and Flow Regime Transition 28
2.2 Experimental Setup and Methods 32
2.2.1 Experimental Setup 32
2.2.2 Observation and Determination of Flow Regimes 33
2.2.3 Flow Resistance Measurement 35
2.2.4 Flow Rate and Void Fraction Wave Measurement 35
2.2.5 Data Processing 37
2.3 Formation Mechanism of Slug Flow With Low Continuous Phase Velocity 38
2.3.1 Flow Regime Transition 38
2.3.2 Analytical Method 40
2.3.3 Experimental Results 46
2.3.4 Discussion on the Instability of Void Fraction Wave and Formation Mechanism of Taylor Bubble 49
2.3.5 Propagation Velocity of Void Fraction Wave 52
2.4 Gas-Liquid Flow Regime Transition with High Continuous Phase Velocity 54
2.4.1 Flow Regime Transition 54
2.4.2 Experimental Results and Discussions 55
2.4.3 Mechanism of Losing Stability for Bubbly Flow 62
2.4.4 Velocity of Void Fraction Wave 68
2.4.5 Non?-Linear Properties of the Void Fraction Wave 71
Chapter 3 Multiphase Flow Model for Well Drilling 75
3.1 Continuity Equation 76
3.1.1 Continuity Equation in the Annulus 76
3.1.2 Continuity Equation in the Drilling Stem 81
3.2 Momentum Equation 82
3.2.1 Momentum Equation in the Annulus 82
3.2.2 Momentum Equation in the Drilling Stem 83
3.3 Energy Equation 85
3.3.1 Energy Equation in the Annulus 85
3.3.2 Energy Equation in the Drilling Stem 89
3.4 Applications of the Model 89
3.4.1 Underbalanced Drilling 89
3.4.2 Kicking and Killing 90
3.4.3 Kicking and Killing After Acid Gas Influx 92
3.4.4 Kicking and Killing for Deepwater Drilling 93
Chapter 4 Multiphase Flow During Underbalanced Drilling 97
4.1 Flow Model 98
4.1.1 Flow?-Governing Equations in the Annulus 98
4.1.2 Flow?-Governing Equations in the Drilling Stem 99
4.1.3 Energy Equations 100
4.1.4 Auxiliary Equations 101
4.2 Solving Processing 111
4.2.1 Definite Conditions 111
4.2.2 Discretization of the Model 112
4.2.3 Algorithms 115
4.3 Case Study 118
4.3.1 Gas Drilling 118
4.3.2 Drill Pipe Injection?-Aerated Drilling 125
4.3.3 Annulus Injection?-Aerated Drilling 128
Chapter 5 Multiphase Flow During Kicking and Killing 133
5.1 Common Killing Method 134
5.1.1 Killing Parameters of Driller's Method and Wait and Weight Method 134
5.1.2 The Circulate?-and-Weight Method 138
5.2 Multiphase Flow Model 139
5.2.1 Governing Equations for Killing 140
5.2.2 Governing Equation for Kicking 143
5.2.3 Auxiliary Equations 143
5.3 Solving Process 143
5.3.1 Definite Conditions 143
5.3.2 Discretization of the Model 146
5.3.3 Algorithms 148
5.4 Case Study 149
5.4.1 Basic Parameters of the Well 149
5.4.2 Simulations of Overflow 150
5.4.3 Hydraulic Parameters for Killing 151
Chapter 6 Multiphase Flow During Kicking and Killing with Acid Gas 155 <p&...