Fundamentals of Marine Riser Mechanics : Basic Principles and Simplified Analyses, 2nd Edition (With CD-ROM)

Marine risers are unusual structures that defy standard engineering intuition, yet they are critical to the safety and structural integrity of offshore platforms. In this new edition of Fundamentals of Marine Riser Mechanics, the six new chapters, which have been added to the original fifteen, provide further arguments to support effective tension as well as original analysis of helical buckling. Analytical methods are used to model all phases of the development of helical buckling within a riser, associated with flexing of the pipe within the seabed BOP and down hole. An entire chapter is devoted to the Macondo accident of 2010.

Features and benefits of the new chapters and appendices included in the 2nd Edition:

• Further arguments that confirm the validity of the Effective Tension concept, based on analysis of real forces applied to the pipe walls by internal and external pressures
• Analysis of helically buckled pipes within casings, leading to exact expressions for all forces acting in and on a regular helix
• Analysis of helix end sections that connect a regular helix to a centralised end point on the casing axis, taking into account applied end moments (restoring or disturbing). Proof that such end sections must always include a transition section, in contact with the casing wall, linking the regular helix to the section out of contact with the casing wall.
• Analysis of drill-pipe deflection inside a seabed BOP and down hole, associated with helical buckling within a riser, with particular reference to the Macondo accident scenario.
• Discussion of how and when planar buckling transforms into helical buckling
• Appendices giving details of all required calculation methods
• Three new Excel files, added to the original seventeen, to allow readers to perform further calculations with their own data

Preface to the Second Edition
Preface to the First Edition
Nomenclature
SI Unit Equivalents

Chapter 1 : Introduction
Chapter 2 : Pipe and Riser Deflections and Global Stability : The Effective Tension Concept
Chapter 3 : Application of Effective Tension : Frequent Difficulties and Particular Cases
Chapter 4 : Pipe and Riser Stresses
Chapter 5 : Pipe and Riser Strains
Chapter 6 : Tensioned-Beam Behavior
Chapter 7 : Statics of Near-Vertical Cables
Chapter 8 : Near-Vertical Riser Static Behavior
Chapter 9 : Stress Joint Design
Chapter 10 : Riser Bundles : Local Bending Between Guides
Chapter 11 : Near-Vertical Risers Associated with Floating Platforms with Stiff Tensioners
Chapter 12 : Steel Catenary Risers
Chapter 13 : Axial Vibrations of Fixed Risers
Chapter 14 : Axial Vibrations of Hung-Off Risers
Chapter 15 : Transverse Modal Vibrations of Near-Vertical Risers
Chapter 16 : Effective Tension and Buoyancy-Additional Arguments
Chapter 17 : Introduction to Helical Buckling
Chapter 18 : Exact Analysis of a Regular Helix
Chapter 19 : Analysis of Helix End Sections
Chapter 20 : Drill-Pipe Deflection within a Seabed Blowout Preventer Induced by Helical Buckling in The Riser
Chapter 21 : Transition from Planar to Helical Buckling

Appendix A : Tensioned-Beam Equations
Appendix B : Tension Calculations for Simple Riser Cases
Appendix C : Application of The Morison Equation to Risers
Appendix D : Stress and Strain Relationships in a Thick-Walled Pipe
Appendix E : Equivalent Poisson's Ratios for Anisotropic Pipes
Appendix F : Curvature of a Tensioned Beam Subject to Generalized Load
Appendix G : Riser Bundle Pipe Moments Between Guides
Appendix H : Catenary Equations
Appendix I : Damped Axial Vibrations
Appendix J : Notes On Excel Files
Appendix K : Detailed Analysis of a Helix Transition Section
Appendix L : Helix Free-Wall End Section
Appendix M : Analysis of Blowout Preventer Section of Drill Pipe
Appendix N : Analysis of Down-Hole Pipe Deflection
Appendix O : Influence of Pipe Torque on Regular Helix Forces
Index