Geomechanics for Geoscientists

RCM/GEOM

Who should attend?

  • This training course aims to ensure the understanding of geomechanics-related phenomena that affect reservoir exploitation management and safety such as compaction/subsidence, reservoir cover layer fracturing, fault activation, and to be aware of the techniques used in the petroleum industry to mitigate these phenomena.
Audience :
  • Geoscientists (reservoir engineers, geologists, geophysicists).

Level : Proficiency

Course Content

  • INTRODUCTION TO GEOMECHANICS IN THE PETROLEUM INDUSTRY

      • Review of all the applications of geomechanics in the reservoir and drilling fields illustrated with real cases.
  • THEORETICAL BASES USEFUL FOR RESERVOIR APPLICATIONS

      • Stresses, deformations, yield.
      • Connection between stress, pressure and temperature.
      • Rock tensile failure.
      • Rock shearing failure.
      • Fault activation criterion.
      • Laboratory measurements of tensile and rupture properties.
      • Measurements of pore compressibility.
      • Geomechanical model of wells (formation pressure, stress and mechanical properties) and calibration from laboratory measurements and logs and well tests, particularly the leak-off test, induced fractures and oval shapes.
  • IMPACT OF GEOMECHANICS ON RESERVOIR SAFETY & MANAGEMENT

      • Workflow of the building of a coupled reservoir and geomechanical model.
      • Arching effect.
      • Compaction and subsidence calculations and assessment of the related risks.
      • Determination of the maximum injection pressure and the storage capacity in a reservoir.
      • Methods of monitoring of reservoir cover layer integrity.
  • APPLICATION

      • Exercise based on one or several real cases gathering the major issues of reservoir geomechanics.
      • Knowledge assessment.

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • acquire the basic geomechanical knowledge useful for reservoir applications,
  • understand the connection between stress, pressure and temperature both in the reservoir and in the cover layers at the origin of compaction, fracturing and fault activation,
  • know the workflow and the data needed to build a geomechanical model first at the well scale and then at the reservoir scale,
  • interpret model results to assess compaction/subsidence, the maximum injection pressure, fault integrity.

Ways & Means

  • Application exercises adapted to reservoir exploitation situations.