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1. Underbalanced Drilling (UBD) Lesson 1
Introduction
Chapter 1
3. What is UBD
Why Drill Underbalanced
Techniques and Limitations
Historical Perspectives
4. This course provides an introduction and application of techniques that can be utilized in underbalanced drilling. It will cover topics such as BOP equipment, the types of drilling fluids used (air, mist foam, etc.), flow drilling, and mud cap drilling.
5. “Underbalanced Drilling Manual”
Gas Research Institute, GRI,
Chicago, 1997.
6. “A project Management Approach To Underbalanced Operations”.
Signa Engineering Corp., Houston, 1998.
“Mudlite Air/Mist/Foam Hydraulics Model”.
Maurer Engineering Inc., Houston, 1988
Selected papers and texts.
39. PETE 689 Underbalanced Drilling (UBD)