Introduction to Geomechanics for Unconventional Oil and Gas

Reservoir Descriptions and Dynamics


This 1-day course is an introduction to geomechanics principles and their application to unconventional resources including tight gas, shale gas, and shale oil. Basic rock mechanics theory is reviewed and many practical problems encountered in the exploration, drilling, completion, stimulation, and production workflow are described. Topics include:

  • In-situ stresses
  • Rock mechanical properties
  • Critically stressed natural fractures
  • Caprock and casing integrity
  • Wellbore stability
  • Hydraulic fracturing
  • Geomechanical monitoring

Participants will receive a course manual with some of the latest technical innovations in the industry, a comprehensive list of references and internet resources, a spreadsheet program for basic wellbore stress and stability calculations, and a demonstration of advanced geomechanical software.

Why Attend?

You will gain a better understanding of the geomechanical factors that underpin new and improved technologies for drilling, completing, and stimulating horizontal wells. You will learn how to use this knowledge to find and develop unconventional resources with safe and economic practices.

Who Should Attend

This course will be of interest to all E&P personnel working in subsurface disciplines including engineers, geoscientists, technologists, and management.


0.8 CEUs (Continuing Education Units) are awarded for this 1-day course.

Cancellation Policy

To receive a full refund, all cancellations must be received in writing no later than 14 days prior to the course start date. Cancellations made after the 14-day window will not be refunded. Send cancellation requests by email to; by fax to +1.866.460.3032 (US) or +1.972.852.9292 (outside US); or mail to SPE Registration, PO Box 833836, Richardson, TX 75083.


Patrick McLellan, MSc, PEng, is the principal consultant with McLellan Energy Advisors Incorporated and has over 30 years of experience applying geomechanics to a wide range of E&P activities. He was the founder of Advanced Geotechnology (now Weatherford Geomechanics Services) and has conducted over 500 consulting and research projects for clients in Canada and abroad. He was the lead developer of two commercial software products for well design and geomechanical analysis. He was previously employed in technical and supervisory roles with Petro-Canada, Shell Canada, and Shell Research. He has written or presented over 150 technical papers and given more than 80 short courses on geomechanics-related topics in Canada and abroad. Pat was an SPE Distinguished Lecturer in 2002–2003, and is a recipient of the SPE Distinguished Service Award.

He received a BSc (engineering) in geological engineering from Queen’s University in 1979 and an MSc in civil engineering (geotechnical) from the University of Alberta in 1983.

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