PML Exploration Services, LLC

P = pressure exerted by the water (psi) D= depth of the water. N= normal gradient (.465 psi/ft for salt water) (.433 psi/ft for fresh water) Now equating the water pressure to equivalent formation depth by: De = P/(S/D) Where. De = equivalent depth. P = pressure exerted by the water. S/D = overburden stress (depth of water + depth of interest ... ................
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