Preface
Chapter 1 Introduction
1.1 Multiphase Flow in the Well
1.2 Methods
1.2.1 Theoretical Analysis
1.2.2 Experimental Study
1.2.3 Numerical Simulation
1.3 Parameters
1.4 Multiphase Flow Pattems
1.4.1 Flow Patterns of Gas—Liquid Flow
1.4.2 Gas—Liquid Flow Pattern of Acid Gas Under Supercritical Condition
1.5 Multiphase Flow Models
1.5.1 Homogeneous Flow Model
1.5.2 Separated Flow Model
1.5.3 Drift—Flux Model
1.5.4 Statistical Average Model
Chapter 2 The Void Fraction Wave and Flow Regime Transition
2.1 Introduction
2.1.1 Bubble Coalescence and Flow Regime Transition
2.1.2 Void Fraction Wave and Flow Regime Transition
2.2 Experimental Setup and Methods
2.2.1 Experimental Setup
2.2.2 Observation and Determination of Flow Regimes
2.2.3 Flow Resistance Measurement
2.2.4 Flow Rate and Void Fraction Wave Measurement
2.2.5 Data Processing
2.3 Formation Mechanism of Slug Flow with Low Continuous Phase Velocity
2.3.1 Flow Regime Transition
2.3.2 Analytical Method
2.3.3 Experimental Results
2.3.4 Discussion on the Instability of Void Fraction Wave and Formation Mechanism of Taylor Bubble
2.3.5 Propagation Velocity of Void Fraction Wave
2.4 Gas—Liquid Flow Regime Transition with High Continuous Phase Velocity
2.4.1 Flow Regime Transition
2.4.2 Experimental Results and Discussions
2.4.3 Mechanism of Losing Stability for Bubbly Flow
2.4.4 Velocity of Void Fraction Wave
2.4.5 Non—Linear Properties of the Void Fraction Wave
Chapter 3 Multiphase Flow Model for Well Drilling
3.1 Continuity Equation
3.1.1 Continuity Equation in the Annulus
3.1.2 Continuity Equation in the Drilling Stem
3.2 Momentum Equation
3.2.1 Momentum Equation in the Annulus
3.2.2 Momentum Equation in the Drilling Stem
3.3 Energy Equation
3.3.1 Energy Equation in the Annulus
3.3.2 Energy Equation in the Drilling Stem
3.4 Applications of the Model
3.4.1 Underbalanced Drilling
3，4.2 Kicking and Killing
3.4.3 Kicking and Killing After Acid Gas Influx
3.4.4 Kicking and Killing for Deepwater Drilling
Chapter 4 Multiphase Flow During Underbalanced Drilling
4.1 Flow Model
4.1.1 Flow—Governing Equations in the Annulus
4.1.2 Flow—Governing Equations in the Drilling Stem
4.1.3 Energy Equations
4.1.4 Auxiliary Equations
4.2 Solving Processing
4.2.1 Definite Conditions
4.2.2 Discretization of the Model
4.2.3 Algorithms
4.3 CaseS tudy
4.3.1 Gas Drilling
4.3.2 Drill Pipe Injection—Aerated Drilling
4.3.3 Annulus Injection—Aerated Drilling
Chapter 5 Multiphase Flow During Kicking and Killing
5.1 Common Killing Method
5.1.1 Killing Parameters of Driller's Method and Wait and Weight Method
5.1.2 The Circulate—and—Weight Method
5.2 Multiphase Flow Model
5.2.1 Governing Equations for Killing
5.2.2 Governing Equation for Kicking
5.2.3 Auxiliary Equations
5.3 Solving Process
5.3.1 Delinite Conditions
5.3.2 Discretization of the Model
5.3.3 Algorithms
5.4 Case Study
5.4.1 Basic Parameters of the Well
5.4.2 Simulations of Overflow
5.4.3 Hydraulic Parameters for Killing
Chapter 6 Multiphase Flow During Kicking and Killing with Acid Gas
6.1 Flow Model
6.1.1 Flow Governing Equations for Killing Acid Gas Kicking
6.1.2 Flow Governing Equations for Acid Gas Kicking
6.1.3 Auxiliary Equations
6.2 The Solving Process
6.2.1 Definite Conditions
6.2.2 Algorithms
6.3 Simulations and Case Study
6.3.1 Basic Parameters of the Well
6.3.2 Acid Gas Compressibility and Density in the Wellbore
6.3.3 Acid Gas Solubility in the Wellbore
6.3.4 Acid Gas Expansion in the Wellbore
6.3.5 Impact on the Pit Gain
Chapter 7 Multiphase Flow During Kicking and Killing in Deepwater Drilling
7.1 Common Deepwater Killing Method
7.1.1 Dynamic Killing Method
7.1.2 Advanced Driller's Method
7.1.3 Additional Flow Rate Method
7.2 Flow Model
7.2.1 Governing Equations for Deepwater Well Killing
7.2.2 Governing Equations for Kicking
7.2.3 Auxiliary Equations
7.3 The Solving Process
7.3.1 Delinite Conditions
7.3.2 Algorithms
7.4 Case Study
7.4.1 Basic Parameters of the Well
7.4.2 Simulations of Kicks and Blowout
7.4.3 Simulation of the Killing Process
References
Author Index
Subject Index
