self potential methodself propelled drilling platformself propelled drillshipsemi fixed platformsemi membrane tanksemi submersible drilling platformsensitive drillseparatorseparator oilservice well headset v on a wellsetting depthsetting time of cementsettled productionsettled production ratesettling ditchsettling pitshakershaker mud tankshale base lineshale breakshallow drillingshallow pool test wellshallow wellshalr oilshaped chargesharpen v the bitshear foldshear zoneshearing strainsheetingshell augershieldshiftshift faultshoe guideshooting of a wellshooting pointshort lateral seviceshort normal sondshort thread sasingshort threadsshot core drillingshot holeshot hole drillingshot hole plugshotbreakshotpoint distanceshow evaluation logshut in bottom hole pressure
