contact anglecontact depositcontact level indicatorcontact linecontact lodecontact log microlog mlcontact logging microloggingcontact potentialcontact rockcontact sonde microsondecontaminatedcontaminated ballastcontaminated mudcontaminated samplecontiguous zonecontinental emergence continental risecontinental faciescontinental margincontinental segmentcontinental shelfcontinuous chain wire rope systemcontinuous coringcontinuous decantercontinuous dipmetercontinuous fiowmetercontinuous gas detection by mud loggingcontinuous gas generationcontinuous inclinometercontinuous intersticecontinuous mud weight recordercontinuous samplingcontiunous inslinometercontour flooding cecter to edge floodingcontour intervalcontouringcontrol headcontrol valvecontrollable pitch propeller c pcontrolled directional drilling controlledconventional bitconventional drillingconventional electric logging deviceconventional mudconvergence map isopach map ispachous mapcoolantcoolercooling agentcooling effectcooling watercooling water tube