* ''Formation evaluation''—Some wireline logs should not be run in oil-based muds. Also, additional steps are needed to remove oil coatings from cuttings before they are described. (For more information on wireline tool compatibility with drilling fluid composition, see [[Basic tool table]], and for more on removing oil coatings from cuttings, see [[Mudlogging: Drill cuttings analysis]].) | * ''Formation evaluation''—Some wireline logs should not be run in oil-based muds. Also, additional steps are needed to remove oil coatings from cuttings before they are described. (For more information on wireline tool compatibility with drilling fluid composition, see [[Basic tool table]], and for more on removing oil coatings from cuttings, see [[Mudlogging: Drill cuttings analysis]].) |