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Rock Properties

Unconventional Reservoir Services - Tight Gas Sands

Drainage Rock Properties for Tight Gas Sands


Resistivity Index (RI) Determination
  • Determine saturation exponent "n"
  • "n" influences calculated water saturations


Drainage Rock Properties

Effective Permeability to Gas
  • Measured at decreasing water saturations

Drainage Rock Properties


Critical Gas Saturation Determination
  • Quantifies the "non-wetting phase" saturation where gas flow begins
  • Approximates the end-point of the drainage relative permeability curve
  • Greatly expands the possible "production window" for the drainage relative permeability curve

Drainage Rock Properties