Table of Contents

Preface Contributors List of Abbreviations Chapter 1 The Why and Basic Principles of Managed Well-Bore Pressure About This Chapter 1.1 Introduction to Managed Pressure Drilling and Some Definitions 1.2 History 1.2.1 Old Ideas Made New 1.2.2 New Ideas 1.3 Advantages and Methods of Managed Pressure Drilling 1.3.1 An Adaptive Process 1.3.2 Extending the Casing Points 1.3.3 Lost Circulation 1.3.4 Well Kicks 1.3.5 Differentially Stuck Drill Pipe 1.3.6 Deepwater Drilling 1.4 Basic Mathematical Ideas behind MPD 1.4.1 Bottom-Hole Pressure Calculations with Liquids 1.4.2 Expansion (or Compression) of a Gas Bubble with No Fluid Flow 1.4.3 Ideal Gas Law 1.4.4 Strong–White Equation 1.4.5 The Effect of Annular Pressure Loss on Bubble Size 1.5 Basic Well Control 1.5.1 Driller’s Method of Well Control 1.5.2 Wait and Weight Method of Well Control 1.5.3 Basic Well-Control Formulas 1.5.4 Lag Time—Choke to Bottom of the Hole or Choke to Standpipe 1.6 Pore Pressure 1.7 Overburden Pressure 1.8 Rock Mechanics 1.8.1 Fracture Pressure 1.8.2 Well-Bore Ballooning and the Leak-off Test Questions References Answers Chapter 2 Situational Problems in MPD About This Chapter 2.1 Introduction 2.2 ECD Manipulation—Pore Pressure and Fracture Pressure Convergence 2.2.1 Chokes 2.2.2 Pumps 2.2.3 Pipe Movement 2.2.4 "Ballooning" 2.2.5 Precision 2.2.6 Well Control 2.2.7 Lag Time 2.3 Total Lost Circulation 2.4 Deepwater Marine Drilling 2.4.1 The Problem in the Surface Hole 2.4.2 Excessive Casing Strings 2.4.3 U-Tube Effect in Riserless or Limited Riser Operations 2.4.4 Hydrosta


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Gulf Publishing Company
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About the authors

Ian Davidson

Ian Davidson is currently Owner and Trainer of IANADAV LLC, engaging major E&P companies to provide well engineering and well control training. Previously, he was Vice President of Marketing and Training at Blade Energy Partners, where he was responsible for conducting courses in drilling technology to meet client requirements. He was also Well Manufacturing Manager for unconventional resources, along with several other previous positions such as rig superintendent, at Shell for 34 years where he led the advance of new drilling concepts applied to well manufacturing for unconventional resources, and he is a joint patent holder on wellbore manufacturing process for in situ heat treatment process. He is a member of Shell’s international technology implementation team as well as coordinator of drilling workshops with the IADC and SPE. He is also a chartered engineer and the author of several technical papers related to drilling, well control. Ian earned a BSc in Mechanical Engineering from the Polytechnic of Central London, is a Chartered Engineer, and a IADC WellCap Supervisor Level for surface and subsea operations.

Affiliations and Expertise

Ian Davidson - Owner and Trainer, IANADAV LLC (UK)