Geomechanics in Unconventionals

Production and Operations •	Drilling and Completions Reservoir Descriptions and Dynamics


Geomechanics plays an important role in developing unconventional resources such as coal seam gas (CSG) and shale gas. This course will help you understand the fundamentals of geomechanics and its applications to unconventional reservoirs (CSG and shale gas) which will enable better field development decisions.

The course takes a unified geomechanics approach and will cover:

  • Geomechanics fundamentals
  • Core selection guidelines and core testing (for isotropic and anisotropic rocks) including Heterogeneous Rock Analysis (HRA)
  • Isotropic and anisotropic rock properties
  • In-situ stress and pore pressure
  • Acoustic Geomechanics for Unconventional Resources
  • Construction of 1D Mechanical Earth Model (MEM) and calibration
  • 3D MEM: What it is and how it is constructed
  • Geomechanics applications: wellbore stability and hydraulic fracturing

Learning Level

Beginner, Intermediate

Why Attend?

This one day short course is intended to cover the fundamentals of geomechanics and its applications in unconventional resources (coal seam gas and shale gas). This course is designed to provide an awareness to those interested in learning what is geomechanics, data requirement for a geomechanics study, the components of a geomechanical model, how to construct a calibrated 1D Mechanical Earth Model (1D MEM) and 3D MEM and its applications to unconventional resources (wellbore stability, hydraulic fracturing, stress dependent permeability change etc).

Who Should Attend

Engineers, Geoscientists, Technical Managers, and Engineering Technologists who are interested in learning fundamentals of geomechanics and its application to unconventional resources (coal seam gas and shale gas)


Engineers are responsible for enhancing their professional competence throughout their careers. Licensed, chartered, and or/ certified engineers are sometimes required by government entities to provide proof of continued professional development and training. Training credits are defined as Continuing Education Units (CEUs) or Professional Development Hours (PDH). Attendees of SPE training courses earn 0.8 CEUs for each day of training. We provide each attendee a certificate upon completion of the training course.


Zachariah John Pallikathekathil

Zachariah John Pallikathekathil (Zach John) is the team leader for the Geomechanics and Acoustics group for Schlumberger Australasia. He has more than 30 years of experience in the oil and gas industry with seven years in petroleum geomechanics. He graduated in mechanical engineering from IIT-Delhi with distinction and took electives from the school of oil & gas UWA masters program. He has held technical and management positions in Wireline and PetroTechnical services segments of Schlumberger in many countries before moving on as Petrophysics and LWD domain champion supporting Wireline and LWD interpretation. His passion for geomechanics and its multi-disciplinary requirement drew him into the field of geomechanics eight years ago. He is involved in rock testing design, construction of 1D Mechanical Earth Model and 3D numerical model for addressing issues on wellbore stability, sanding, and for hydro frac over the life of the field. He has been involved with many CSG and shale gas geomechanics projects in Australia and presented at both SPE and Formation Evaluation Society of Australia (FESAus) forums. He is an active member of FESAus and was its past president. In his free time he enjoys gardening, vermiculture, cycling, biblical theological studies, and serving at his church.