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E-427 - Underbalanced & Managed Pressure Drilling: Applications, Design & Operations

5 days FOR/UBDE
Level
Proficiency
Audience
  • Drilling and mud engineers, superintendents and supervisors, and all professionals involved in well planning and operation.
Purpose
  • This course provides a comprehensive and practical knowledge of non-conventional techniques used in advanced drilling and completion processes to enhance drilling performance and oil recovery.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • deal with issues of narrow pore/fracture pressure gradient windows, lost circulation, abnormal pressures, kick/loss situations,
  • drill wells in depleted reservoirs,
  • acquire basic concepts of managed and underbalanced pressure drilling,
  • review various managed pressure drilling methods and equipment,
  • identify typical situations calling for managed pressure drilling and assess potential benefit,
  • review typical applications, equipment and operation of underbalanced drilling.
Prerequisite
  • No prerequisites for this course.
Ways and means
  • Several case studies and examples are discussed.

BASIC PRINCIPLES OF MANAGED PRESSURE DRILLING 1 day
  • History, objectives and definitions.
  • Occurrence and implications of narrow pore and fracture pressures windows on well design and well control.
  • Dynamic factors affecting bottom hole pressure.
  • Mathematics and examples.
MUD CAP DRILLING 0.5 day
  • History of mud cap drilling.
  • Pressurized and floating mud cap.
  • Mud cap operation.
MANAGED PRESSURE DRILLING EQUIPMENT 0.5 day
  • Rotating control devices.
  • Chokes.
  • Drill pipe non return valves and downhole annular valves.
  • ECD reduction tools.
  • Coriolis flow-meter, friction pump.
MANAGED PRESSURE DRILLING USING PRESSURE AS PRIMARY CONTROL 1 day
  • Introduction, open and closed back pressure systems.
  • Automated back pressure system technology.
  • Continuous circulating system technology.
MANAGED PRESSURE DRILLING USING FLOW AS PRIMARY CONTROL 1 day
  • Process description.
  • Equipment and technology.
  • Applications.
UNDERBALANCED DRILLING 0.5 day
  • Underbalanced drilling objectives and applications.
  • Underbalanced drilling equipment and operations.
CONCLUSION 0.5 day
  • Advantages of managed and underbalanced drilling.
  • Potential and limitations.
  • Typical applications.