Geomechanics and In-Situ Stress

The subsurface as a structure carrying load. Resolve the stress tensor, place a field in the frictional polygon, turn the stresses into a mud-weight window and a fracture gradient, and assemble a mechanical earth model calibrated on one well. Each idea is checked against an interactive figure you can drive.

20 interactive sections across 3 books
Start here → The Stress Polygon, from Geomechanics

Geomechanics

  1. The Stress Polygon
  2. The Mud-Weight Window
  3. The Ogbon-1 Stress Model
  4. The Stress Path
  5. The Lab
  6. SHmax: The Hardest Number
  7. Breakouts
  8. Drilling-Induced Tensile Fractures
  9. Why Geomechanics? The Loaded Earth
  10. Frictional Equilibrium: The Crust at Its Limit
  11. Deviated Wells
  12. SHmax from the Wellbore
  13. The Toolkit Map
  14. Effective Stress Moves the Circle
  15. 4D Geomechanics
  16. From the Lab to the Field
  17. Skempton's B and Undrained Response

Petrophysics

  1. Fractures on Images

3D Seismic Interpretation

  1. Geomechanics: elastic to stress and fracture
  2. Unconventional completion design: Wolfcamp shale in the Permian

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