Short Course – June 8, 2011

Short Course Event Logo

Title: Reservoir Geomechanics Applied to Unconventional Resources

Instructor: Azra N. Tutuncu

Location: Denver Marriott City Center, Denver, CO

Publication: The Outcrop, May 2011, p. 7

Geoscientists have an outstanding continuing education opportunity in this one-day course. Colorado School of Mines instructor Azra N. Tutuncu will touch on theory and practical applications of reservoirs in stress and strain concepts useful for producing oil and gas in basins of the Rockies. Professor Tutuncu (Ph.D., P.E., P.G.) is the Harry D. Campbell Chair of the CSM Petroleum Engineering Department, and she is also the Director of the Unconventional Natural Gas Institute (UNGI). After obtaining an MS degree in Geophysics from Stanford University and a Doctorate degree in Petroleum Engineering from the University of Texas at Austin, Azra worked at Shell Research and Shell International for thirteen years in Houston and in the Netherlands. Professor Tutuncu will share her theoretical and practical knowledge of the technical revolution in petroleum resource plays.

The course provides an introduction to fundamental rock mechanics concepts and aims to emphasize their role in exploration, drilling, completion and production engineering operations. Deformation as a function of stress, elastic moduli, in situ stress, stress magnitude and orientation, pore pressure, strength and fracture gradient, rock characteristic from field data (seismic, logging, drilling, production), integrated wellbore stability analysis, depletion and drilling induced fractures, compaction and associated changes in rock properties, hydraulic fracturing and fracture stability are among the topics to be covered.

Course Outline

  • Principal stresses, 2D stress state and Mohr diagram
  • 3D stress state
    • In situ stress, pore pressure and effective stresses
  • Rock deformation and failure characteristics
    • Elasticity
    • Poroelasticity
    • Plasticity
    • Failure criteria (compression, tension and shear)
  • Fundamentals of geomechanics and applications
    • In situ stress determination
    • Mechanical property/formation strength determination
    • Wellbore stability
    • Hydraulic fracturing
    • Sources of geomechanics data
  • Petrophysical characteristics of unconventional reservoirs and seal shales
  • Rock-fluid interactions in deformation and failure characteristics of unconventional reservoirs and seal shales
  • Evaluation of heterogeneity and anisotropy in unconventional resources
  • Mechanical, petrophysical and acoustic properties for unconventional resources
  • Stress anisotropy in shales and other unconventional resources
  • Mechanisms behind the differences between static and dynamic moduli in Unconventional Resources
  • Influence of natural fractures in unconventional reservoirs
  • Wellbore stability and well integrity for unconventional reservoirs
  • Geomechanics surveillance and monitoring techniques for unconventional resources
  • Environmental impact and mitigation
  • Vertical, inclined and horizontal wells
    • Stress around a circular hole
    • Borehole breakouts and tensile fracture
  • Pore pressure, strength and fracture gradient determination using field data
  • Critically stressed faults and fractures
  • Depletion related deformation, compaction/subsidence

All who want to know more about the tools and methods for extracting hydrocarbons from the vast resources of the Rockies will derive value from this course. Please mark your calendars for Wednesday, June 8th and check the RMAG website for registration details.

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