Written by a leading industry specialist, a must-have for drilling specialists, petroleum engineers, and field practitioners, this is the only book providing practical, rigorous and validated models for general annular flows, eccentric geometries, non-Newtonian fluids, yield stresses, multiphase effects, and transient motions and flow rates and includes new methods describing mudcake integrity and pore pressure for blowout assessment.Wilson C. Chin has written some of the most important and well-known books in the petroleum industry. These books, whose research was funded by the U.S. Department of Energy and several international petroleum corporations, have set very high standards. Many algorithms are used at leading oil service companies to support key drilling and well logging applications.For the first time, the physical models in these publications, founded on rigorous mathematics and numerical methods, are now available to the broader industry: students, petroleum engineers, drillers and faculty researchers. The presentations are written in easy-to-understand language, with few equations, offering simplified explanations of difficult problems and solutions which provide key insights into downhole physical phenomena through detailed tabulations and color graphics displays. Practical applications, such as cuttings transport, pressure control, mudcake integrity, formation effects in unconventional applications, and so on, are addressed in great detail, offering the most practical answers to everyday problems that the engineer encounters.The book does not stop at annular flow. In fact, the important role of mudcake growth and thickness in enabling steady flow in the annulus is considered, as is the role of (low) formation permeability in affecting mud filtration, cake growth, and fluid sealing at the sandface. This is the first publication addressing "the big picture," a "first" drawn from the author's related research in multiple disciplines such as drilling rheology, formation testing and reservoir simulation. A must-have for any petroleum engineer, petroleum professional, or student, this book is truly a groundbreaking volume that is sure to set new standards.

Preface xiAcknowledgements xiii1 Fundamental Ideas and Background 11.1 Background, industry challenges and frustrations 21.2 Related prior work 81.3 References 132 Steady Annular Flow 142.1 Graphical interface basics 152.2 Steady flows -- versatile capabilities 202.3 References 1333 Transient Single-Phase Flows 1353.1 Validation runs, three diff erent approaches to steady, Power law, non-rotating, concentric annular flow 1363.2 Validation run for transient, Newtonian, non-rotating, concentric annular flow 1383.3 Validation run for transient, Newtonian, non-rotating, eccentric annular flow 1413.4 Effect of steady rotation for laminar Power law flows in concentric annuli 1423.5 Effect of steady-state rotation for Newtonian fluid flow in eccentric annuli 1463.6 Effect of steady rotation for Power law flows in highly eccentric annuli at low densities (foams) 1493.7 Effect of steady rotation for Power law flows in highly eccentric annuli at high densities (heavy muds) 1523.8 Effect of mud pump ramp-up and ramp-down flow rate under non-rotating and rotating conditions 1553.9 Effect of rotational and azimuthal start-up 1583.10 Effect of axial drillstring movement 1623.11 Combined rotation and sinusoidal reciprocation 1653.12 Combined rotation and sinusoidal reciprocation in presence of mud pump flow rate ramp-up for yield stress fluid 1673.13 References 1694 Transient Multiphase Flows 1714.1 Single fluid in pipe and borehole system -- calculating total pressure drops for general non-Newtonian fluids 1734.2 Interface tracking and total pressure drop for multiple fluids pumped in drillpipe and eccentric borehole system 1744.3 Calculating annular and drillpipe pressure loss 1994.4 Herschel-Bulkley pipe flow analysis 2074.5 Transient, three-dimensional, eccentric multiphase flow analysis for non-rotating Newtonian fluids 2104.6 Transient, 3D, eccentric multiphase analysis for non-rotating Newtonian fluids -- simulator description 2164.7 Transient, 3D, eccentric multiphase analysis for general rotating non-Newtonian fluids -- simulator description 2254.8 Transient, 3D, eccentric, multiphase analysis for general rotating non-Newtonian fluids with axial pipe movement -- Validation runs for completely stationary pipe 2274.9 Transient, 3D, concentric, multiphase analysis for rotating Power law fluids without axial pipe movement 2444.10 Transient, 3D, eccentric, multiphase analysis for general rotating non-Newtonian fluids with axial pipe movement -- Validation runs for constant rate rotation and translation 2484.11 References 2565 Mudcake Formation in Single-Phase Flow 2595.1 Flows with moving boundaries -- four basic problems 2605.2 Characterizing mud and mudcake properties 2775.3 Complex invasion problems -- numerical modeling 2835.4 References 3106 Mudcake Growth for Multiphase Flow 3116.1 Physical problem description 3126.2 Overview physics and simulation capabilities 3166.3 Model and user interface notes 3256.4 Detailed applications 3286.5 References 3397 Pore Pressure in Higher Mobility Formations 3407.1 Forward and inverse modeling approaches 3417.2 Preliminary ideas 3427. 3 Inverse examples -- dip angle, multivalued solutions and skin 3477.4 References 3588 Pore Pressure Prediction in Low Mobility or Tight Formations 3598.1 Low permeability pulse interference testing -- nonzero skin 3608.2 Low permeability pulse interference testing -- zero skin 3658.3 Formation Testing While Drilling (FTWD) 3728.4 References 388Cumulative References 389Index 412About the Author 418