F is usually extracted from the new mentioned porosity of your formation through the dating

F is usually extracted from the new mentioned porosity of your formation through the dating

Well logs provide understanding of the latest formations and you can requirements regarding the subsurface, lined up generally at the identification and you may research regarding perhaps productive horizons.

Commitment away from saturation

H2o saturation is the tiny fraction of pore quantity of the fresh new tank rock that’s full of drinking water. It is generally believed, except if if not identified, that the pore frequency maybe not filled up with h2o is filled with hydrocarbons. Deciding drinking water and hydrocarbon saturation is one of the basic objectives out of better signing.

Clean formations

All-water saturation determinations away from resistivity logs into the clean (nonshaly) formations having homogeneous intergranular porosity depend on Archie’s liquids saturation formula, or variations thereof. [1] [2] The fresh new equation was

To possess simplicity, the newest saturation exponent letter is often taken as dos. Research tests show this try a good well worth to have average cases. Continue reading