| 摘要 |
A method for determining the water saturation of an underground formation traversed by a borehole, the method comprising: determining a first parameter (µ) that is representative of the critical exponent of the electrical conductivity of the formation; determining a second parameter (Wc or Sc or Æc) that is representative of the formation percolation threshold; measuring a first set of formation properties; and combining said first set of formation properties, first and second parameters in order to determine the water saturation (Sw) of said underground formation.
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