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Geomechanics Services

Petroleum Geomechanics for Reservoir Exploitation

A custom course can be designed from the following modules that focuses on a selection of specific topics and incorporates relevant case histories and/or exercises as required. Contact us at for more details on our customized training courses.

INTRODUCTION TO GEOMECHANICS

  • Definitions and nomenclature
  •  Economic impacts
  •  Sources of information

ROCK MECHANICAL PROPERTIES

  • Classification of geomechanical properties
  • Rock strength and deformability
  • Effects of stress on permeability
  • Acoustic properties
  • Dynamic elastic properties
  • Properties of poorly cemented sandstones
  • Mechanical and transport properties of shales
  • Strength properties of natural fractures
  • Fracture closure behavior
  • Exercise

CAPROCK INTEGRITY

  • In-situ stress and natural fractures
  •  Techniques for assessing seal integrity
  •  Coupled geomechanical reservoir modeling
  •  Case histories

WELLBORE STABILITY

  • Geological factors in shales
  • Symptoms of borehole instability
  • Borehole failure modes
  • Induced fracturing and lost circulation
  • Factors affecting borehole stability
  • Physico-chemical effects
  • Geomechanical modeling
  • Modeling mud-shale interaction
  • Hole cleaning and hydraulics
  • Case histories
  • Guidelines for reducing borehole instability

STABView WELLBORE STABILITY AND SAND PRODUCTION WORKSHOP

  • Introduction to STABView
  • Borehole stability basics
  • Sand production basics
  • STABView capabilities
  • Drilling problem sets
  • Sand production problem sets

GEOMECHANICAL MODELING

  • Coupled reservoir/geomechanical modelling
  • Review of commercial models
  • Case histories
  • Exercises

RESERVOIR MONITORING TECHNIQUES

  • Surface uplift monitoring
  • Tiltmeters
  • Extensometers and inclinometers
  • Microseismic monitoring
  • Case histories

CASING/FORMATION INTERACTION

  • Casing deformations and failures
  • Thermal casing/formation interaction
  • Completions in permafrost and gas hydrates

ROCK BIT INTERACTION

  • Bit/formation interaction
  • Predicting drilling ROP
  • Underbalanced drilling and ROP

PERFORATING

  • Perforating mechanics
  • Perforation damage
  • Underbalanced vs. overbalanced
  • Effects of skin on well performance

HYDRAULIC AND ACID FRACTURING

  • Basic design principles
  • Acid fracturing
  • Stimulating naturally fractured reservoirs
  • Mini- and micro-fracturing
  • Mini-fracturing case history
  • Fracturing horizontal wells
  • Fracturing in oil sands
  • Case histories

SAND PRODUCTION AND CONTROL

  • Factors affecting sand production
  • Theories to predict sanding tendencies
  • Sanding production prediction techniques
  • Log analysis techniques
  • When do you need a liner?
  • Sand control options
  • Optimizing productivity
  • Selecting slot or screen sizes
  • Case histories

COLDFLOW PRODUCTION IN HEAVY OIL

  • Canadian field experience
  • Wormholes vs near-wellbore yielding
  • Predicting the extent of disturbance
  • Coupling foamy oil behavior
  • Case histories

SUBSURFACE WASTE DISPOSAL

  • Cavern disposal of produced solids
  • Produced solids injection
  • Drill cuttings re-injection
  • Waste slop disposal
  • Produced water disposal
  • Monitoring
  • Case histories

INDUCED RESERVOIR SEISMICITY

  • Basic theory
  • Production induced seismicity
  • Injection induced seismicity
  • Risk analysis techniques
  •  Case histories

 

© 2009 Weatherford International Ltd.