Well logging is the practice of recording and analyzing various kinds of data about the rock formations around a borehole during or after drilling. Also called borehole logging, this activity aims to ...

If resource permits, definitely use the DB. A plain text file is hard to "use" (unless writing a shit load of perl or whatever just to digest the file is within your definition of easy); a DB, OTOH, ...

This early journaling system has evolved to encompass lowering logging tools into the wellbore via wireline in order to measure porosity, resistivity, permeability, temperature, water saturation and ...